LED professional Review (LpR) – Mar/Apr 2024 – LpR#102

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ExploringtheNewEraof ResponsibleLighting

Light+Buildingwasafantasticevent,anditwasbrilliantmeetingsomany friendsandacquaintancesinpersonagainandmanyothersforthefirst time.Wefocusedonthehighlights,innovations,andnewsinFrankfurt, withtheintentionofuncoveringsomehighlightsforyou,dearreaders. Theyareincludedbothinthenewssectionandininterviewswithkey figuresfromthelightingworld.

Aspecialthankstoallourconversationpartners!

BeyondLight+Building,weareexcitedtopresentotheroutstanding articles.Theseincludenear-infraredlighting,thenewinitiativeforcircadian tools,theintriguingtopicoffree-formopticsinautomotiveapplications, theimpactofthelightingworldonglobalwarming,thelife-cycle assessmenttool,cloud-basedcontrolsystems,andlightingsimulations.

Aconcisesummarizationoftheobservedgeneraltrendscanbeoutlined usingkeytermssuchasSustainability,Miniaturization,Modularity, Controllability,IoT,Wireless,Cloud-basedSystems,LightQuality,Human CentricLighting,Acoustics,orperhapstheoverallterm:“Responsible Lighting”.

Byandlarge,thiseditionservesasacompactsourceofknowledgethat willintroduceyoutosomenewaspectsofthelightingworld.

Enjoyyourread!

YoursSincerely, SiegfriedLuger

EDITORIAL 4 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
LugerResearche.U.,Founder&CEO LEDprofessional,TrendsinLighting,LpSDigital&GlobalLightingDirectory InternationalSolid-StateLightingAlliance(ISA),MemberoftheBoardofAdvisors MemberoftheGoodLightGroupandtheEuropeanPhotonicsIndustryConsortium

COMMENTARY

8 LightEnhancesOurLives byDr.AnneBERENDS,ProgramDirectorLife ScienceatSeaborough

NEWS

10 Light+Building2024–News

LIGHT+BUILDING

22 LightingtheWay:Groundbreaking TrendsandTechnologiesfromLight+ Building byLEDprofessionalEditors

LIGHTINGEUROPE

30 FromAlarmingFiguresonLighting Non-compliancetoConstructive Solutions byLightingEurope

LIGHTINGBUSINESS

32 ZumtobelandPininfarina:Lighting TechnologyPioneerPartnersupwith DesignExperttoShapetheFutureof Lighting byZumtobel

OPTICS

36 Free-formMicro-OpticsinAutomotive Applications

byDr.DanielaKARTHAUS,LightingTechnology &OpticsExpertatFORVIAHELLA

CONTENT OVERVIEW 6 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
EDITORIAL
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CONTENT OVERVIEW 7 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design HORTICULTURE 40 HorticultureLEDstoBoostVertical FarmingEfficiency byAlexanderGERFER,AdithyaMADANAHALLI, andJohannWALDHERRfromWürthElektronik eiSos REPORT 44 Solid-StateLightingReport–TheImpactofLEDsonElectricity ConsumptionandGlobalWarming byDr.J.NormanBARDSELY,ChiefAnalystat InternationalSolid-StateLightingAlliance DESIGN 48 Eco-InnovationinLighting:LCA-CALC LeadstheWayinSustainableLighting Solutions byTiphaineTREINS,FounderandHeadof Temeloy CONTROLS 52 ConnectingLightingDesignand CircadianResearchwithAI byDr.AdriàHUGUET-FERRAN,Founder&CTO ofKUMUX SIMULATION 56 DigitalTwinArchitectureforLighting InfrastructureintheContextofFront-End Industry4.0 byAlexFISCHER,ProductManageratSimScale LPSDIGITALTALKS 60 ExpertTalksonLight–Micro-Opticsin AutomotiveLighting 62 ABOUT|IMPRINT ADVERTISINGINDEX 2 CreeLED 3 Würth 5 DALIAlliance 9 PHABULOuSPilotLine 13 CreeLED 21 EdisonOpto 39 TrendsinLighting 47 LEDprofessionalReview 51 LCACalculator 59 GoodLightGroup 63 GlobalLightingDirectory 64 LEDprofessionalReview

Dr.AnneBERENDS

Dr.AnneBerendsisProgram DirectorofLifeScienceat Seaborough.Initiallyfocusedon developingluminescentmaterials forLEDs,herinterestevolvedto exploringlight’sbiologicaleffects. Currently,shedelvesinto near-infraredlight’simpacton healthandwell-being,aimingto integratetheseprovenhealth benefitsintoconsumerproducts. AsProgramDirector,Annedrives boththescientificresearchand businessstrategy,whileactively contributingtoproduct developmentandmarketing activities.Herjourneyfrom materialsscientisttovisionary leadershowcasesherabilityto bridgeacademicresearchwith real-worldapplications, exemplifiedbyhersignificant contributionstoscientific publicationsandpatents.

LightEnhancesOurLives

Thelightingindustry,historically celebratedforitscontributionsto reducingenergyconsumption,now seemshesitantasitedgestowards paradigmshift.Theintroductionof energy-efficientlightingbasedonLEDs, markedasignificantmilestone.Yet,as wenavigatethroughaneraofincreased pricepressure,theindustry’snarrativeis ripeforanewchapter—onethatmoves beyondmereenergyefficiencyfora lowerpricetoencompassthebroader, moreprofoundimpactoflightingon humanhealthandwell-being.

Entertheconceptofhuman-centric lighting(HCL).Thisemerging perspectivehasitsrootsinthediscovery ofintrinsicallyphotosensitiveRetinal GanglionCells(ipRGCs).Thesecells, sensitivetovisiblelightpeakingat 480 nm,playacrucialroleinregulating ourcircadianrhythms,affecting everythingfromoursleeppatternstoour overallhealth.Yet,despitethe considerableresearchadvancements andlargecoverageofthetopicwithin scientificconferences,HCLremains notablyunderrepresentedinthemarket. AttradeshowslikeLight+Buildingor LEDucation,productsembodyingthese humancentricprinciplesarestill considerednicheproducts.Additionally, thetermHCLsufferedfrominflationas basicdimmableorCCTtunablelamps withoutcircadianorotherhealtheffects arelabelledhumancentrictoo.These observationsunderscoreanunfortunate disconnectbetweenscientificresearch andreal-worldapplication.Moreover, thepotentialbenefitsofnon-visible near-infraredlight,afrontierofscientific study,arenotincorporatedincurrent productofferings.

Theslowadoptionof‘true’HCLandthe broaderintegrationofscientificinsights intothelightingindustry’smainstream offeringsraisequestionsaboutthe industry’sagilityandabilitytoinnovate. Atthesametime,whilemanylighting designersatLight+Buildingseemed eagertoimplementthenewest technologicalinsightsrelatedtohealth andwell-being,extensiveadoptionof theseinnovationslagsbehind.The challengeisn’tsolelytechnologicalbut

alsoconceptual—shiftingtheindustry’s valuepropositionandthepublic’s perceptionfromthetraditionalmetricsof energyefficiencytothenuanced,yet impactful,domainoflightqualityandits effectsonhumanhealthandwell-being.

“Thechallengeisn’tsolely technological.”

DR.ANNEBERENDS

Severalfactorscontributetothisinertia. Firstly,thelightingindustry’sestablished valueproposition—energy savings—remainsacompellingsell, especiallyinaneraofenvironmental awarenessandsustainabilitygoals. Secondly,thebenefitsofHCL,while significant,arehardertoquantifyand communicatetoalayaudience,unlike thestraightforwardmetricsofenergy consumptionandcostsavings.Lastly, theregulatoryandstandardslandscape hasyettofullycatchupwiththese advances,leavingagapbetween innovationandimplementation.

Despitethesechallenges,thepotential ofhuman-centriclightinginthebroadest sense,asadriverofhealth,well-being, andevenproductivityistoosignificant toignore.Theindustrymusttherefore pivot,championingeducationand awarenesstobridgethegapbetween scientificdiscoveryandcommercial application.Lightingmanufacturers, alongwithlightingdesigners,academia andregulatorybodies,mustembarkon ajointefforttoeducatethepublicabout theprofoundbenefitsofhealthylighting. Manufacturersneedtoinnovateboldly, integratingthelatestscientificinsights intotheirproducts,whilepolicymakers andstandardsorganizationsshould facilitatethistransitionthrough supportiveregulationsandguidelines. Together,wecanilluminateapath forwardthatprioritizeshumanhealth andwell-being,redefiningthevalueof lightinourlives:Lightenhancesour lives.

COMMENTARY DR.ANNEBERENDS 8 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
A.B.

FAIR&PRODUCTHIGHLIGHTS

Light+Building

www.light-building.messefrankfurt.com

Themodernbuildingisintelligent,connected, andasaresultsavesenergy.Incombination withalternativeenergysourcesandefficient lightingsolutions,emissionsinthebuilding sectorcanbedrasticallyreduced.Thismakes asignificantcontributiontoachievingclimate targets.2,169exhibitorspresentedthelatest developmentsinbuildingtechnologyand trendsininnovativelightingdesignatLight+ BuildinginFrankfurtamMainfrom3to8 March2024.Over151,000visitorstravelled totheworld’sleadingtradefairforlightingand building-servicestechnology.

“Theatmosphereattheexhibitors’booths,in thehallsandthroughouttheexhibition groundswassimplyfantastic.Weare extremelypleasedthatsomanyexhibitorsand visitors,aswellasourlong-standingpartners, havecontinuedthesuccessstoryofthe world’sleadingtradefairforlightingand building-servicestechnologyin2024,” summarizesWolfgangMarzin,Presidentand ChiefExecutiveOfficerofMesseFrankfurt.He added:“Withtheswitchtorenewableenergy sources,greaterefficiencyandsustainabilityin buildings,theindustryhaskeygoalsonits agenda.That’swhytheyusedtheplatform intensively,especiallyinthefirstfewdays,to presentanddiscoverinnovationsanddrive forwardkeytopics.Afterall,ifwewantto achievetheclimateprotectiongoals,the buildingsectorisanessentialmilestone.Itis unfortunatethattherailandairtransport strikesaffectedMesseFrankfurt’sthirdleading internationaleventsincethebeginningofthe year.”

Buildingsoftomorrowandinspiringlighting solutions:Keytopicsweretheelectrification anddigitalizationofhomesandbuildingsin ordertoreduceemissionsandreuseraw materials.AtLight+Building,theindustry presentedthedigitalandelectrotechnical infrastructureforthisand,onthisbasis, showcasedsolutionsfordynamicpower control,energystoragesystemsand applicationsforconnectedsecurity.One

growingareaistherangeofe-mobilityand charginginfrastructureaswellasinnovations andproductsfordecentralizedenergysupply systemsandcomponents.

Lightplaysanimportantroleinthe architectureoftomorrow.AtLight+Building 2024,65percentofexhibitorsbelongedto thissector.Theypresentedhigh-quality lightingsolutionsforindoorandoutdoorareas aswellasdynamicroomconcepts.Modern LEDinstallationsensurecontemporary efficiencyandeitherblendharmoniouslyinto thearchitectureoremphasizethedesign elements.Lightingistoprovidemaximum visualcomfortinalllivingandworking environments.Thankstothematerialsused, AcousticLightingcombinesapleasantlighting atmospherewithsound-absorbingfunctions. Sustainabilityplaysanessentialroleinboth thematerialsusedandthemanufacturing processes.Manymanufacturersdesign luminairesinawaythattherawmaterialsused canberecycledattheendoftheirusefullife.

“151,192visitorsfrom 146countries.”

Light+Building2024infigures:The high-quality,extensiveandinternational portfoliooflightingandbuilding-services technologyimpressedthevisitors.95percent ofthemwereextremelysatisfiedwithwhat wasondisplayandstatedthattheyhad achieved93percentoftheirtradefair attendancetargets.Themostcametothe innovationmeetingpointfromGermany, China,Italy,theNetherlands,France, Switzerland,Belgium,Austria,theUK,Spain andPoland.Theycamefromatotalof146 countriesincluding,forexample,India,the USA,theUnitedArabEmirates,Australia, BrazilandSingapore.Thedegreeof internationalitywasthus51percent.Thelevel ofinternationalityamongthe2,169exhibitors wasalsohighat76percent.

Meetingplaceforthesocialmedia community:Thesocialmediacommunityalso founditshomeatLight+Building.On3and4 March,theleadingcontentcreatorsinthe lightingandbuilding-servicestechnology sectorgatheredforthePowerCreatorDays. Inadditiontolivepodcasts,experttalksand casestudies,visitorshadthechancetopedal foragoodcauseandworktogethertowards ahighenergytarget.Atotalof1,510minutes werecycledonthesixfitnessbikes.The sponsorswillconverttheresultintoacash donationfortheLeberechtFoundation,which MesseFrankfurtwilldouble.Theexact amountwillbeannouncedonsocialmedia furthertoLight+Building.

ThenextLight+Buildingwilltakeplacefrom 8to13March2026inFrankfurtamMain.

LightingEurope

www.lightingeurope.org

Theevent’FromtheEUGreenDealtothe LightingEuropeStrategy2030’tookplaceat theLight+BuildingfairinFrankfurt.One hundredpeopleattendedandtherewasan intensediscussionontheenforcementof sustainabilityrulesspecificallyapplicableto lightingproducts.

LightingEuropemeetingatLight+Building.

Despitetheveryhighlevelofnon-compliant lightingproductsontheEUmarket(see https://bit.ly/49ITzJqtheresultsofthemystery shoppingexercise),thespeakerssaidthat therearepossiblewaystochangethecurrent situation.

Speakers:HolgerDickert(HessenState), RonaldPiersdeRaveschoot(DGENER), TanguyGriffon(Sonepar),SylviaMaurer (BEUC-TheEuropeanConsumer Organization),MariekeHoffmann(Deutsche Umwelthilfe),MarcGuiraud(EucoLight),Kevan Shaw(InternationalAssociationofLighting Designers(IALD),TeresaSelvaggioand AlfredoMenghini(bothfromLightingEurope). Allpresentationsareavailableonourwebsite https://bit.ly/3v4AeU0

ConclusionsandHighlights:

• Onlineplatformsareobligedtocheckthat companiessellingontheirplatformare registeredfor#WEEEandhavea representativeinanEUcountry(following theGermanWEEElaw)

• Makingonlineplatformsliablefor non-compliantproductsifthereisnoliable actor(basedonFrenchlaw)

• Visibilityofseriouslynon-compliant productsonpublicwebsites(name& shame),encouragingcitizensand companiestoinform#msasafetyabout suspectednon-compliantproducts

• Toraisepublicandpoliticalconcern, highlightthatnon-compliantproductscan alsobedangerousorfailtocontributeto climateandenvironmentalobjectives,thus harmingtheoveralleffortsofallactors-> highercontributionstoCO2objectives shouldinsteadberewarded

• Greatercooperationisneededbetween surveillanceandcustomsauthorities, sharingdataandcoordinatingsanctions

• Continueeffortsineducatingthemarketvia FAQsandGuidelines.

NEWS LIGHT+BUILDING2024–FAIR&PRODUCTHIGHLIGHTS 10 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024

DoyouwanttohelpLightingEuroperaise awarenessonthetopicoflackofenforcement andsupportusinfindingtherightsolutions?

GetintouchwithourSecretaryGeneral: ElenaScaroni.

Zhaga

www.zhagastandard.org

Light+Building2024,theworld’sleadingtrade fairforlightingandbuildingservices technology,witnessedaremarkablepresence fromtheZhagaConsortium.Overthecourse ofsixdays,theZhagaboothexperienceda constantinfluxofvisitors,reflectingthe industry’skeeninterestinthelatest advancementsinsmartstandards developments.Oneofthekeyattractionsat theZhagaboothwastheZhagaBook18 focusingonthesmartinterfacebetween outdoorluminairesand sensing/communicationmodules.Visitors experiencedademonstrationofsensorsand communicationmodulesfromdifferent vendorsthatwereplacedonstreetlight luminairesfromdifferentmanufacturersand workedasintended,forinstance,relayingthe informationofpresencedetectedbya luminairetoanotherone.

Theupcomingspecification,Book26,iscentered aroundLEDmodulesforlinearsocketableapplications.

Also,theupcomingZhagaBook18Edition4, tailoredtomeettheneedsofthedecorative andheritageluminaires,garneredsignificant attentionfromattendees.Book18Edition4 allowsforapole-mountedbracketassembly andaddressesissuesaroundtheinstallation oflongcablesneededtoconnectthebracket assemblyandtheheadoftheluminaire.Book 18Edition4isanticipatedtobeavailableto ZhagamembersbySeptember2024.

Onanotherapplicationside,asystemofan indoorsensingmoduleandanindoor luminaire,bothbasedontheZhagaBook20 “smartinterfacebetweenindoorluminaires andsensing/communicationsmodules, demonstrationofaU.S.Departmentof EnergyL-Prizeprototypewinner,ledto interestingdiscussions.

Zhagaconstantlydevelopsnewinterfaces, addressingdifferentneedsinthelighting industry.AtLight+Building,theteamdecided toprovideasneakpeekintoitsupcoming

specification,Book26,centeredaroundLED modulesforlinearsocketableapplications. Prototypesofthesemoduleswere showcased,highlightingacost-effective mechanicalandelectricalinterfacefortoolless replacement.Withafocusonrepairability, on-siteservicingandlate-stageconfiguration, Book26pavesthewayforenhancedflexibility andsustainabilityinluminairedesign.

Thiswasanexampleofhowcircularityisa prominentthemeforZhaga,emphasizingits commitmenttoenablingcirculareconomy throughtheadoptionofglobalstandardsby thelightingindustry.Beyondproduct development,Zhaga’sCircularityLighting frameworkaimstominimizewasteand promoteresourceefficiency.Thisinitiative resonatedstronglywitharchitectsandlighting designers,whoparticipatedinguidedtours titled“OntheRoadtoaSustainableFuture.”

AhighlightofZhaga’spresenceatthe Light+Buildingfairwastheinsightful presentationbyHeinrichThye,Secretary GeneralofZhaga.ThyeshedlightonZhaga’s forward-thinkingapproachtofuture-proofing lighting,emphasizinginteroperability, connectivity,andcircularityaspivotalpillarsfor sustainablegrowthintheindustry.TheZhaga Consortiumwelcomedadiversearrayof visitors,includingcityrepresentatives, engineeringfirms,andlightingmanufacturers fromacrosstheglobe.Attendeeshailedfrom regionsspanningChina,India,theMiddle East,Europe,andNorthAmerica, underscoringtheglobalsignificanceof Zhaga’scontributionstothelightingindustry. Zhagamembersplayedapivotalrolein staffingthebooth,engagingwithvisitorsto elucidateZhaga’sobjectives,theimportance ofcertification,andtheprocessofbecominga Consortiummember.Theirpresence underscoredZhaga’scollaborativespiritand dedicationtodrivinginnovationand sustainabilityinthelightingindustry.Witha globalmembershipexceeding550,Zhaga remainsattheforefrontofstandardizing interfacesofcomponentsforLEDluminaires, ensuringcompatibilityandefficiencyacross diverselightingapplications.

ZumtobelGroup

z.lighting/

Sustainability,digitalizationandinnovationthesecentralthemesshapedtheZumtobel Group’spresenceattheLight+Buildingtrade fair.AllZumtobelGroupbrandspresented themselvesattheworld’sleadingtradefairfor lightingandbuildingtechnologyinanew locationforthecompany,theForumofthe MesseFrankfurt.Alongsidetheprofessional rangeoflightingandtechnologysolutions fromTridonic,ThornandZumtobel,numerous highlightslinedthecompany’stradefair presence,includingaGuinnessWorldRecord titleforZumtobel’sinstallationoftheworld’s

“largestcontinuousluminousceiling”atthe lightingspecialist’sexhibitionspace.Forthe firsttime,thenewIoTproductbrandKeyture wasintroducedwiththeaimofaccelerating theintegrationofdigitalservicesintothe lightinginfrastructureinthefuture.

ZumtobelGroupboothatLight+Building.

Aspartofthetradefair,theZumtobelGroup’s newIoTproductbrandKeyturewaspresented forthefirsttimetothepublic.Keytureisthe ZumtobelGroup’snewcloud-based connectivityandIoTecosystem.Itsintelligent keyfeaturessupporttheZumtobelGroup brandsThornandZumtobeltooptimizethe useoftheirluminairesinprofessional sensor-supportedlightingsystemstoenable theiroperationwithmaximumenergy efficiency.Keyturewillbeavailableto customersstartinginautumn2024.The futurefocusonIoTisunderscoredbythe ZumtobelGroup’secosystempartnershipthat wasrecentlysignedon29February2024with SiemensandEnlighted,aleadingbuilding technologycompanythatispartofSiemens.

TheZumtobelGroup’stechnologycompany Tridonicreceivedoneofthemostprestigious internationalindustryawardsduringthetrade fair:theDALIAllianceLightingAward2024in the“Architectural&Entertainment”category. ThejuryhonoredtheTridoniclightingcontrol systemforamajorcinemacomplexinDubai. Alsoshowcasedtothefairaudiencewasone ofthemostsignificantprojectsinTridonic’s companyhistory:theMilan“Hospitalofthe Future”OspedaleGaleazzi-Sant’Ambrogio, where16,000intelligentluminairesare operatedwithLEDdriversand6,000sensors fromTridonic.Tridonicnotonlyinstalleda sophisticatedlightingmanagementsystemfor thisexceptionallylargeproject,butalso headedtheprojectmanagementovera periodofthreeyearsincollaborationwithall companiesandclientsinvolved.

Lightonauniquescale:measuringover200 squaremeters,Zumtobel’sCIELUMAhasset aGUINNESSWORLDRECORDStitleforthe “largestcontinuouslyilluminated”ceilinginthe worldattheLight+Building2024.Installed byZumtobelanditslong-standing manufacturingpartnerTypicoattheir exhibitionspaceinFrankfurtamMain,the worldrecord-holdingCIELUMAilluminated ceilingwas45.029meterslongand4.503 meterswideandwascharacterizedbya continuousseamlessluminoussurface.It’s thecompany’sfirstGUINNESSWORLD

NEWS LIGHT+BUILDING2024–FAIR&PRODUCTHIGHLIGHTS 11 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design

RECORDStitle.Inadditiontoitsimpressive sizethefascinationoftheCIELUMAlighting installationwasitsperfectimitationofdaylight.

ZumtobelandtheItaliandesignstudioand engineeringfirmPininfarinaannouncedtheir partnershipattheLight+Building2024.Both well-establishedcompaniesstandforhigh standardsofqualityanddesign,aswellas innovationandprogress.Foundedontheir sharedvaluesandcombinedexpertisein design,architecture,industryandtechnology expertise,thecollaborationisfocusedon expandingandupgradingZumtobel’s successfulcontinuous-rowlightingsystem. Thepartnershipenablesmeetingfuture lightingrequirementsandrespondingto changingcustomerneedsintermsof flexibility,userexperienceanddesign.The launchofTECTONIIwasannouncedforthe firstquarterof2025.

TRILUX

www.trilux.com/

Thisyear,TRILUXoptedforaholisticstand conceptwithamarketplacecharacter, fosteringmoreexperientialengagement, exchange,andatmosphereratherthana traditionalproductpresentation.Innovations wereshowcasedin‘skyboxes‘,expansive cubessuspendedabovethestand,creatinga uniqueexperientialspaceforluminairesand theLIVELINKLIGHTMANAGEMENT SYSTEM.Associatedinformationscreensand hands-onareasprovidedproductcontext, enablingvisitorstotakeacloserlookatthe LUMINAIRES.Avariedsupportingprogram featuringkeynotesandexperttalksoffered comprehensiveinsightsintosustainability, digitalizationandlightingqualityalongside exclusivepresentationsontopicslikeNew Workandpioneeringarchitecturalconcepts byGRAFTArchitects.

YONOSlightingsystemforoffices.

Twonewmodularsystems,YONOSforoffice applicationsandtheE-LINEPROforindustry, wereparticularlynoteworthy.Themodular designandextensiveselectionof application-specificoptics,luminairemodules, andfunctionalcomponents,offernearly limitlesspossibilitiesforcustomizationand adaption,makingsystemsmoreflexible, secureandappealing.“Giventheirsubstantial advantages,smartandadaptablesystemsare

poisedforlong-termsuccess,”concludes JoachimGeiger.

Inresponsetotheevolvingworldofwork, characterizedbyflexiblemodelssuchas remoteworkandtheprinciplesofNewWork, companiesseektoilluminateofficespacesto meetstandardswhilealsomakingthem attractiveandfuture-proof.Interestinthenew YONOSmodularofficesystem,which consolidatesTRILUX‘sexpertiseinfunctional anddecorativelightingintoasinglesystem, wascorrespondinglyhigh.YONOS‘smodular designofferstailoredsolutionsforeveryoffice lightingtask,fromstandard-compliant, glare-freeworkplacelightingandlinearlightfor circulationzonestospotlightmodulesfor impressivelightingaccents,availableas individualluminaires,continuouslinesorL,T orXconfigurations.YONOS‘sversatility enablesholisticlightingconceptsina consistentdesignlanguage,whetherclassic orNewWork,whilesimplifyingplanning, installation,smartfunctionalityand maintenance.

“Smartandadaptablesystems arepoisedforlong-termsuccess.”

JOACHIMGEIGER

ThenewE-LineProalsoimpressedwithits unparalleledversatility.Anewsupportprofile withcontinuouscurrentroutingallowsflexible positioningofoptics,luminairemodulesand functionalcomponentsalongthecontinuous line.Forthefirsttime,TRILUXintroduceda modulewithanindirectcomponenttothe E-Lineportfolio,expandingitsapplications beyondindustryintosectorslikeeducation andRETAIL.Expertswereequallyimpressed bythelightning-fastandsimpleinstallationof theE-LinePro,whichaveragesjust33 seconds–animprovementof25percent overtheE-LineNextLED.

InadditiontoYONOSandtheE-LinePro, TRILUXunveiledmanyotherinnovations, includingthenewLIVELINKONEappfor plug-and-playlightingmanagement.“The positivefeedbackonourLiveLinkONEapp showshowopentheindustryistolight management-ifinstallationandoperationare simpleandsafe,”saidGeiger.TRILUXalso underlineditspositionasaleadingsupplier andindustrypioneerintermsoflightingquality withtheintroductionofLOWCONTRAST LIGHTTECHNOLOGY,bringingexceptionally pleasantandhigh-qualitylighttooutdoor spaces.

TRILUXofferstheopportunitytoexperience innovationsliveandinactionbeyondthetrade fair,atoneofthe6Germany-wide competencecentersorSHOWROOMS acrossEurope.

ERCO

www.erco.com/

AttheFrankfurtexhibition,ERCOunveileda compellingvisionwiththeirmotto“handson light”,invitinglightingaficionadosfromacross theglobetoengagedirectlywiththeir sustainablydesignedLight+Building exhibitionstand.TheERCOplaystations offeredahands-onexperience,allowing attendeestoexploresustainablelighting solutionstailoredforbothintimatemuseum displaycasesandexpansiveoutdoorfaçades. Theexhibitionwasn’tjustaboutenjoyment;it delvedintothecrucialquestionofhowlighting canbeutilizedsustainably.Throughits “Greenology”sustainabilityprogramme, ERCOshowcasedinnovativeproduct solutionsandapproachesaimedatenhancing thesustainabilityofarchitecturallighting.

ERCO’sboothatLight+Building.

Transformingtheconceptofplayofbrilliants tolightforplaying.Theluminaire manufacturer’splayfuladaptationofRichard Kelly’slightingperceptiontriadfortheLight+ Buildingexhibitionwasacreativedeviation, allowingvisitorsattheERCOplaystationsto testtheirlightingknowledgeacrossfive interactivestations:AtStation1,participants turnedintolightingdirectorsonaminiature stage.Usingthenew Axis showcaselighting, alightingconceptbasedonthe“3-point lighting”approachhadtoberealized.Moving ontoStation2,thelensesof Optec spotlights weretobechangedtillthelightwasprecisely alignedwiththetargetsurfaces.Atthe downlightstation,theobjectivewastosolve estimationquestions,includingaboutlight distribution,withaquicktaponthebuzzer. Station4wasoutdoor-themed:Theteams wereaskedtopracticealigningtheBeamer spotlights.The5thstation,’handson’ Invia, encouragedparticipantstoexperimentwith ERCO’slinearsystemtocreatetheirown lightingscenesincludingwallwashing, ambientlighting,indirectandaccentlighting.

Expertiseforshowcases,passionforgeneral lighting: ERCOdesignslightingsolutionsthatmeet userneedssustainablyandensure architectureremainsfunctionalandrelevant fordecades.Thekeymetricsforenergy efficiency(lm/W)andeffectiveness(lx/W)of lightingwereshowcasedthroughthe OptecNewspotlights,whichrepresentedan eco-friendlyadvancementoftheirbest-selling product.Bycomparingtheilluminanceonthe targetedsurfacewiththepowerconsumption

NEWS LIGHT+BUILDING2024–FAIR&PRODUCTHIGHLIGHTS 12 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024

oftheaccentlightingfixture,itbecameevident whetherlight,andconsequentlyenergy,was beinginefficientlydispersedasscatteredlight. Thecompanynowalsoofferspreciselighting forsensitiveartefactsbehindglass:Withits miniaturizedAxisluminaires,ERCOsetsthe benchmarkforlightingqualityinshowcases. Thelinear,modularInvialightingsystem exemplifiesversatilityinapplicationonalarger scaleandstandsoutforitsabilitytoprovide balancedwallwashingillumination,seamlessly extendingevenintoroomcorners.

AtL+B,ERCOrevealedits’secretpassion’: Downlights.Byshowcasingthevarietyinits downlightportfolio,ERCOhighlightedits broadexpertisebeyondjustspotlights. Generallightingusingrecessedluminairesisa crucialcomponentoflightingdesignsfocused onenhancingperception.Usingthe Iku and Skim downlights,ERCOdemonstratedthat luminousefficacygreaterthan120lm/W combinedwithazonedlightingstrategycan significantlyincreaseenergyefficiency, reducingtheconsumptionof standard-compliantofficelightingtoaslowas 2.99W/m2.

Thebestuseoflight–flexibleintheoffice, responsibleoutdoors: ERCOshowcasedeco-friendlyand standard-compliantofficelightingthroughits track-mounteddownlightsasaprime example.Thisallowsforthelightingtobe flexiblyadjustedtofitofficelayoutsandadapt tochangesinuse.Similartoaccentlighting, ambientlightingshouldbeappliedselectively, onlywhereitisnecessary.Thesameapplies outdoors:WithitsBeamerseriesof projectors,attheL+B,ERCOshowcasedat theL+Bpreciseoutdoorlightingthat maintainstheintegrityofdarknesswhile utilizinglightinaresponsiblemanner.

Anexampleofconsistentsustainability: Sustainabilitycomesfromdurability.‘Lighting Durability’isERCO’sgoalwhichstatesthatall newlydevelopedluminairesaredesignedfora servicelifeof20years.Thefirstproducttobe designedinaccordancewiththisspecification istheadvancedversionoftheOptecspotlight. Durabilityalsoservedastheguidingthemefor thestanddesignconcept.Indesigningthe stand,prioritywasgiventoselectingmaterials thatcouldberepurposedfollowingtheLight+ Buildingexhibition.Forinstance,aspecially constructedstandfloorwasdispensedwith andthecompanyutilizedroadcasesfor

productpresentations.Thesecaseshave beenemployedatlocaltradefairsforyears andarepoisedfortheirinauguraltour.The frameworkusedwasfromthe2018Light+ Buildingstand,andtheERCOplaystations wereincorporatedintoarentalscaffold,which willbereusedbeyondthedurationofthe tradefair.Andwhatwillhappentotheprinted fabricsthatwereusedonthestand?Theywill beconvertedintocarrierbagsandwillsoon beraffledoffamongvisitorstothestand.Itis thereforewellworthsubscribingtotheERCO newsletter:www.erco.com/newsletter

Atthefair’sconclusion,ERCOManaging DirectorOliverGabrielexpressedahighly satisfiedassessment:“Engaginghands-on, experimentingwithlightandfixtures–that’s whatbringsexcitementtoatradefair.The enthusiasticfeedbackfromourvisitors regardingERCOplayhasstrengthenedour commitmenttomakinglightatangiblefourth dimensionofarchitecture.Continued discussionswithplannersaboutefficiencyand lightingqualitywillfurtherpropelthe developmentofdurableproducts,enhancing thesustainabilityandimprovementof architecture.”

iGuzzini

www.iguzzini.com

With65yearsofexperienceinarchitectural lighting,thebrandteamedupwithStudio GEZAfortheexhibitandArtecStudio,under thecreativedirectionofMauriciGinés,forthe lightscenographyattheFrankfurtfair. Together,theycraftedanimmersivespace showcasingiGuzzini’sinnovativeapproachto light,drivenbyconnectivity,technology,optics researchandenvironmentalresponsibility.

“Lightthatmoves”epitomizesiGuzzini’score philosophythatsummarizestheconceptof connected,responsive,intrinsically sustainableanddeeplyhuman-centric lighting,whichpermeateseachcollectionand resonatesthroughthearchitecturaland interiorprojectsilluminatedbyiGuzzini.This conceptwillbeexpressedinthenewbrand identity,whichshowcasesiGuzzini’sinnovative approachtocreatinglightthattransforms spaces,movespeople,enrichesculturesand ignitesimagination.CristianoVenturini,CEO ofiGuzzini:“WearereturningtoLight+ Buildingaftersixyears,awareofthefair’s

globalsignificanceinthelightingindustryand committedtomaintainingourpositionasa leadingauthorityinthefield.Wewilldothis withanevolved,somewhatrevolutionary imagethattakesintoconsiderationthe developmentandchangesinsociety, presentingauniqueofferinthemarketwhere iGuzzini’sDNA,historyandfutureintertwine. iGuzzinifocusesonsmartandintelligent lightingsolutionsaimedatmakingthelivesof peoplebetter,moresustainableandfulfilling, nomatterwheretheyare.Thecultureoflight anditsroots,design,imagination,research andcontinuousinnovationaretheingredients thatallowvisitorstoFrankfurttoexperience somethingdifferent,bothinsideandoutside theiGuzzinistand,whichhasbeencompletely reinventedfortheevent.”

CesareAVANZI,EditorialCommunicationsSenior Manager,showcasedFilorail,atracksystemwith just3.6mmopening.

LightShedLinenunits,representingabiophilic versionoftheLightShedsystemthatencapsulatesthepresentandfutureoftheiGuzzinibrand.

Inthissetting,theiGuzzinilightwasthefifth element,enrichedanddiffusedthrougha seriesofinstallationsthatshowcasedtheir technical,graphicandarchitectural capabilities.Alightexperiencepunctuatedby threeislandssetwithinanephemeral architecture,whichcouldbeviewedfromboth insideandoutsidethestand.

Theentrancetothestandwasmarkedbya

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sinuous,eye-shapedstructurecomposedof 154LightShedLinenunits,representinga biophilicversionoftheLightShedsystemthat encapsulatesthepresentandfutureofthe brand.Theeyethatwelcomedvisitorsnot onlyrepresentediGuzzini’sperspectiveon lightbutalsoreflectedtheindividual, subjectiveviewpointsthateachvisitorheld, regardingtheobjectsandspacessurrounding them.Thelightsweredesignedtoincorporate smarttechnologicalfeatureswithinaspace designedforaseamlessintegrationof functionsandaharmoniousrelationshipwith peopleandnature:fromlivingtoworking areas,fromintimatetocommunalspaces.

Thestand’sexhibithighlightedthemain strategicareasofapplicationoftheiGuzzini products:Culture,Working,Hospitality& Living,Contract,UrbanandInfrastructures. Insidethestand,threelightinstallations seamlesslycombinediGuzzini’shumanistic andtechnologicalresearchwitheducational spacesfocusedonindividualproductsandon opticsdesignedandmanufacturedin-house. Thecollaborationwithlightingdesigner MauriciGinés,founderofArtecStudio,has resultedinthecreationofawonderfulset designaimedatdemonstratingtoarchitects, interiordesignersandlightingprofessionals thetangibleadvantagesthebrandprovides throughanimmersive,multi-sensory experience.

Theevanescentmicro-architectural componentswereilluminatedandcoloredto synchronizewiththerhythmofthenarrative, creatingasynestheticsequenceoflight, soundandstorytellingenclosedwithinthe brand’sthreetypologicaluniverses.Lightfor art,forindoorarchitectureandforoutdoor architecture.Eachinstallationembodiesthe conceptofconvertingtechnologicalelements intoasensitive,humanandemotionally engagingexperience.

Ratherthancategorizingbyfunction,the approachembracedanorganicvisionthat encouragestheopeninterpretationof products,freefromclassificationand definition.TheLight+Buildingtradefair,with itsaudienceoflightingprofessionals,wasan opportunitytodelveintotheintricaciesof iGuzzini’sresearchinInnovation& Connectivity,pivotaldriversforthecompany’s growth.IntegratedintoiGuzzini’scollections, theseinnovationshavethepotentialto improvethequalityoflivingspacesby providingadaptiveanddynamiclighting. Additionally,theycontributetosignificantly reducingenergyconsumptionandtoeasily access,manageandanalyzeusagedata, promotingsmartbuildingmanagement practicesandcreatingasystemthatiseasyto reconfigureandadaptovertime.

Filorailisanarrowandsinuoustrack,the smallesteverintroducedtothemarket,with anopeningofjust3.6millimeters.Itembodies autopianconceptthatenvisionsafuture

wheretechnologyblendsimperceptiblywith architecture.

Newfoisthenewspotlightthatoffers exceptionalefficiencyandcomfortina compactdesign,blendingunderstatedbeauty withmodernityandatimelessappeal. ThenewSipariospotlightilluminatesan artworkinamuseumaswellasan extraordinaryobjectinsideahome.Theyboth representanewgenerationofprofessional spotlightswithsuperioropticalperformance, flexibilityandefficiency.

TheIwaybollard,designedforbothprivate andpublicoutdoorspaces,offersexceptional visualcomfort.ItsRetrofitfeatureenables flexibleupgradingofthelightsource, improvedperformanceandintegrationof smartsystemmanagementtools. Spacepad’sintegratedintelligencetranslates intoenergyefficiencyandsavingsthrough rationaluseoflight,allowingforflexible layoutsinworksettingsthatpromote collaborationanddynamism.Thislighting solutionisdesignedtoenhanceworking environments,makingthemmorecomfortable andadaptabletocontinuousevolutions. TrickEMservesasageneratorofideasand revelations.Thissmallandcompactspotlight emitslightinmotionandtravelsthrough spaces,gentlycaressingthemtoreveal architecturalcontoursanddetails. TheLiberamodularsystemoffersnew dramaticpossibilitiesinalivingroomaswell asthefoyerofatheatre.Theheartandsoulof theLiberasystemisaboldandliberating interpretationoflight,shapesandspaces. ThepresentationofLiberaandBeTwoina sumptuousandwarmlivingroom complementsthehigh-technatureofthe Optidiamondoptics,accentuatingtheir qualitiesandthevisualcomfortinresidential spaces.

Artemide

www.artemide.com

“Criosferaisnot“just”alight.Itisaresolution, amanifestoofourtimes.Onethatisimbued withoptimismthatwewill,individuallyand collectively,defendintergenerationaljustice. Lightson.It’sactiontime,”saysGiuliaFoscari. “Criosfera,thecryosphere,encompassesall componentsoftheEarthSystemthatare frozen.90%ofsuchiceisinAntarctica.That sameiceisthelargestrepositoryofdataon ourclimatehistory.Itisatimecapsulethat enablesscientiststotracetheclimatichistory ofourplanet,extractingfromcaptiveair bubblestrendsofCO2,greenhousegasses andtemperaturefrompastglacialand interglacialeras.Thequintessentialmarkerof climatechangeisthustheIceCore,acylinder ofstratifiediceextractedfromthedepthsof ourplanet’sicesheets.Theicecorethus becomestheelementthatcreatesawareness andcallstoaction.Abandoningitsfrozen form,theicecoreofCriosferaconsistsofa layeringofblownrecycledglasswithanoptic

corethatlearnsfromtherefractivenatureof theicesurfaceoftheAntarcticplateauto maximizethediffusionoflight,andevokesthe stratificationofthepolarice.”

DavidRommerskirchen(left)andhiscolleague presentedSOMNIUM,asystembornfromthe fusionofoptical,structural,andproductionelements,broughttolifethroughtransparency.Atits corethereisanopticalcell,engineeredformaximumefficiencyandoptimalperception.

Criosfera,isaresolution,amanifestofourtimes.

Criosferaisthereforeasynthesisofoptical, materialandscientificknowledgewhich translatesintoamanifestoofvaluesbetween thepresentandthefuture.Theexternalblown glasscylinderisthestructureinsidewhichthe optoelectronicenginedisappearswithout visibleshadows.Itslimitsanditsuniqueness arelinkedtothecraftsmanship.Engravings areimpressedintothehotglassbefore blowingandmakesitsthicknesswavyand irregular.Itcontainsthemeasuredperfection ofopticalextrusionwhosesectiondiffusesthe lightwithoutmakingthesourcesinsidevisible. Thiselementfitsintothespacewiththree differentessentialstructures,whichreferto thescientificinstrumentsusedtoextractand analyzeicecores.Theyarecomposedof surfacesmadewithlasercutting,atechnology thatoptimizestheuseofmaterials.

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ThornLighting

www.thornlighting.com

ThornLightingwelcomedvisitorstoitsdigital andimmersivestandatFrankfurt’sLight+ Buildingevent.Thelightingbrandfoundedin 1928showcasedelementsofitsextensive portfolioofindoorandoutdoorsolutions. Surroundingtheoutsideofthestandwere areasfocusedonThorn’skeyoutdoor applications–roadandstreet,sportsand urbanandarchitectural.Movingintothe interiorspace,visitorswereinvitedtoexplore theindoorapplicationareasofofficeand education,retailandindustry.

ThornLightingboothatLight+Building.

Alongsidephysicalproductsandprototypes, visitorsto2024’sLight+Buildinggotafirst lookattheCityofThorn.This3D,interactive cityhasbeendesignedtodemonstrateThorn Lighting’sexcellenceinkeyapplicationareas andwasshownonlargescreens.IntheCity ofThorn,userscannavigatethroughspaces thatareallilluminatedwiththeprecisionand innovationThornisrenownedforandzoom intospecificareastoexaminethediverse rangeofproductsandcontrolsystems includingdark-skyfriendlyoutdoorluminaires, sustainablepanelsforofficeandeducation,or connectedindustrialsolutionssuchashigh bays.Justasgreatcitiesevolve,sotoowill Thorn’svirtualmetropolis,growingovertime toincorporateafullspectrumofapplications. Moreinformationtofollowlaterthisyear.

OthernotableinnovationsincludeHAP(High AccuracyPositioning)whichwasdisplayedin theretailandindustrybooths.Launchingin spring,thistechnologycanbeusedalongside Thornluminairestotrackpeopleorobjects, resultinginarangeofbenefits.Already installedatThorn’smanufacturingfacilityin Spennymoor(UK),visitorscouldview livestreamdatatoseeitsreallifeusage.Thorn alsopreviewedtheKeyturesolution,whichis anewconnectivityandIoTecosystem. Launchinglaterintheyear,theluminaire compatiblesensorsamplifylightingcontrol, enhancingenergyandcostsavingpotential alongsideassettracking.Alsoinstalledin Spennymoor–thefactoryhasseencost savingsofthousandsofpoundssince January.

DuringLight+Building,Thorn’ssustainable

indoorrecessedpanel‘OmegaModuline’was shortlistedforArchiteller’s‘Sustainable ProductAward’.MarkMattimoe,Thorn’s indoorProductManagementDirectoroutlined theluminaire’sfeatures(includingreplaceable LEDmodulesanddriver)toajuryatthefair’s DesignPlaza.

MoresuccesscameintheformofLight+ Building’sfirstever‘SustainableExhibition Stand’prize-awardedtotheZumtobelGroup forthestandconceptsofThornLighting, ZumtobelLightingandTridonic.

VicePresidentofThorn,SaurabhPandhisaid, “ReturningtoLight+BuildinginMarch exceededallofourexpectations.Visitor numberswerefargreaterthananticipated, andthroughthesolutionsondisplayandthe knowledgeofourteamsonthestand,we havesolidifiedThorn’spositionasastrong playerintheindoorandoutdoorlighting marketwithconnectivityandIoTatthecoreof itssolutions.Overthecomingmonthsand years,we’llcontinuetobuildonourportfolios, prioritizingsustainability,efficiencyand connectivityforourcustomers.Thankyouto allwhotouredtheThornstand–welook forwardtocontinuedcollaborationgoing forward.”

NANOTTICA,TREVOS

www.trevos.eu

HeadquarteredinthenorthofBohemiainthe CzechRepublic,Trevosisamarket-leading manufacturerofindustrialandinterior luminaires,boastingover30yearsof experience.

ownR&DDepartmentandinvestsheavilyin innovationstosatisfymarketdemands.In 2021,TrevoslaunchedNANOTTICA,afamily ofcutting-edgelightfittingsthatfeaturea nano-structure.Sofar,thispatent-pending technologyhasnotbeenusedbyanyother manufactureranywhereintheworld.

TheNANOTTICAfixtureboastsalowunified glareratingwithitsUGRvaluespatented nanooptics.Thisensureseyecomfort,high visualperformanceandwork-placesafety, whichindirectlytranslatesintohigher productivity.Thefittingishighlyrecommended forilluminationofpremiseswhereworkers’ visualprecisionisofparamountimportance. Theseincludeworkshopswherefine assemblyworkisperformedaswellascraft workshopsandvisualinspectionareas.The fitting’sstandardbeamanglemakesitagreat choiceforpremiseswithafittinginstallation heightof3.5to8m.Inadditiontoindoor spaces,itisdesignedforagriculturalbuildings andotherspaceswithchemicallyaggressive environmentsduetoammoniafumes,lye fumes,alkaliandhotwater(hydrolysis).The fittingisprimarilyintendedforlargeagricultural premisesandindustrialhallssuchasfarms, stables,productionplantsandwarehouses, carwashesandlaboratorieswithnoexplosion hazard.IP69-ratedandHACCP-compliant, thefitting’sdesignalsomakesitsuitablefor thefoodindustry.

DALI+Driver,Inventronics www.inventronics-co.com/

InventronicspresentedthefirstDALI+with ThreadcertifiedwirelessLEDdriversattrade fairLight+Building2024.Harnessingthe advantagesoftheDALI-2standardforlighting, DALI+extendsitsfeaturesandbenefitstothe wirelessrealm.TheDALI+wirelessnetworkis basedontheIEC62386-104standardand employsthesameDALIlanguage,features, anddata.Thiswillenabletheseamless integrationofDALI-2wiredandDALI+ wirelessdevicesinthesameinstallation.

InventronicspresentedthefirstDALI+withThread certifiedwirelessLEDdrivers.

Trevosisalsoalocalandglobaltechnological trendsetterwhenitcomestoproducing high-quality,innovativeandaffordablelight fixtures.Currentlyexportingtoover60 countriesintheworld,thecompanyhasits

TheDALIAlliance,theglobalindustry organizationforDALI,recentlylaunchedits DALI+certificationprogram,ensuring cross-vendorinteroperability.DALI+ representsthestandardizedwirelessprotocol ofthefuture,aimingtodefragmentthe

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MichaelTHOR,MarketingSpecialistatTREVOS. Photo:LEDprofessional.

wirelesslandscapedominatedbyproprietary solutionsandtherebyopeningnewhorizons forthelightingindustry.

Inventronics’newlyintroducedwirelessLED driversmarkthefirstDALI+driverscertifiedby theDALIAlliance.Thiscertificationguarantees thatthedriversseamlesslyintegrateand interoperatewithotherDALI+products.Key featuresofInventronics’wirelessLEDdriver includeenhancedconnectivity,superior energyefficiency,andindividualizedcontrol capabilities.

“BypioneeringthefirstDALI+certified wirelessLEDdriver,wedriveinnovationand emphasizeourdedicationtopromotingopen standardsandinteroperableproducts,”says Dr.GernotSteinlesberger,CEObusinessunit DigitalSystems.

Bluetooth®NLCControl, mwConnect

mwconnect.us

mwConnect(formerlyMcWongInternational), aleadinginnovatorinwirelessmesh technology,hasachievedBluetooth®NLC certificationforitsTruBluwirelessmesh controlsolution.

StephenZHOU,ExecutiveVicePresidentofmwConnectatLight+Building.Photo:LEDprofessional.

TheBluetoothNetworkedLightingControl (NLC)standard,introducedinlate2023,isthe firstfull-stackstandardforwirelesslighting control.Specificallydesignedtomeetthe scale,reliability,andsecuritydemands requiredincommercialsettings,Bluetooth NLCenablesmulti-vendorinteroperable wirelesslightingcontrolsystemsandunlocks thepotentialformassadoptionofwireless lightingcontrol.Byaddingstandard specificationstotheindividualdevicelayeron topoftheBluetoothmesh(communication

layer)andBluetoothLowEnergy(LE)(radio layer),BluetoothNLCstandardizes performanceandfunctionalityoperationsfor sixdeviceprofiles:occupancysensor, ambientlightsensor,energymonitor,scene selector,dimmingcontrol,andlightness controller.mwConnect’snewcertification meansthecompanyoffersthemost comprehensivelistingforBluetoothNLC,with productsinallsixprofiles.Bluetoothmaintains asearchabledatabaseforqualifyingproducts.

“We’re delighted to reach this new milestone, Bluetooth NLC, for our flagship control solution.”

STEPHEN ZHOU

“We’redelightedtoreachthisnewmilestone forourflagshipcontrolsolution,”saidStephen Zhou,ExecutiveVicePresident,mwConnect. “WiththisnewNLCstandard,aprojectteam canselectfromarangeofproductchoices withthecertaintythateachdevicewilloperate seamlesslywitheveryother,regardlessof manufacturer.Thisisthenextnatural evolutionforusinachievingtrue interoperabilityandprovidingthemarketplace withthehighestdegreeofflexibility.”

W-DALI,LumenRadio

lumenradio.com

Throughinnovativewirelesstechnology, W-DALIreplacestheconventionalDALIcable forlighting.W-DALIgivescustomerswireless controloflarge-scalelightingsystemsand opensupnewopportunitiesforlighting design,energyoptimizationandthe modernizationofolderbuildings.

BybeingacompletelytransparentDALI solution,W-DALIeliminatestheneedfor extensiveconstructionwork,whichgenerates benefitsincludingsimplerprojectplanningand reducedinstallationcosts.

W-DALIcomponentsfromLumenRadio.

“Thisisagame-changerforcommercial interiorlighting,”saidNiclasNorlén,Headof ProductDevelopmentatLumenRadio.“With noneedforanyrewiring,W-DALIgivesyouan instantwirelesslightingnetworkwhichisquick

andeasytoinstall.Forourcustomers,this representsagreatcostsaving,particularly whenitcomestoupgradingolderwiredDALI lightingsystems,whichisthepredominant lightingstandardinbuildings.”“W-DALIisbuilt onLumenRadio’spatentedwireless technologywhichprovidesunmatched reliabilityofperformance.Itdoesn’tinterfere withorallowitselftobecompromisedby otherwirelessnetworks,”addsNiclas.“In otherwords,youcanusewifi,Bluetoothor theequivalentinthesameareawithoutadrop incommunicationquality.”

Anenergy-efficientresponsetoclimategoals: “Thepotentialforourwirelessproductsand modules,whichreplacetraditionalcables,is huge,”saysAlexanderHellström,CEOof LumenRadio.“Thisisparticularlytruefor W-DALIsincetheneedtoretrofitand modernizeexistingbuildings,suchasschools, hospitalsandhotels,isgrowingastheEU demandsgreaterenergyefficiencywithinthe buildingsector.”Buildingsaccountforover onethirdofCO2emissionsintheEUandof thosebuiltbefore2000,75%aredeemedto haveapoorenergyperformance.Throughits revisedEnergyPerformanceofBuildings Directive(EPBD),theEUwantstoincreasethe rateofrenovationandmakebuildingsmore energyefficient.Theaimistoreduce emissionsandfullydecarbonizedbuilding stockby2050inanefforttomeettheEU’s widerenergyandclimategoals.

It’sDALI,justwithoutthecable: “We’vedevelopedasolutionwhichoperates withanyDALIcontroller,”saysNiclas. “Commissioningremainsthesamebutyou getaquickerandsimpleralternativeto runningDALIcables–withalltheadvantages ofwirelesscontrol.”

• LumenRadiohaslaunchedW-DALI–a wirelesssolutionforindoorlightingcontrol whichremovestheneedtoinstallnewDALI cables.

• UsesthesamelanguageastheDALIcable protocolbutcommunicateswirelessly.

• Withnoconstructionworkrequired, W-DALIcutsinstallationcostsand complexity.

• Opensthedoorforretrofitprojectsin historicalbuildingswhichcannotbealtered structurally.

• Enablesremotecontrolandmonitoringof lightingfixturesformoreefficientenergy managementinbuildings.

Viathewirelessnetwork,userscanremotely controlandmonitorlightingfixtures,adjust brightnesslevels,setscenes,andcreate schedulesorzonesforefficientenergy management.W-DALIisDALI-2certified.As wellaswirelessproductsforDALI, LumenRadioofferswirelesstechnologyfor Modbus,BACnet,M-busandDMX.W-DALI cancurrentlybeboughtinSwedenvia LumenRadio’sdistributors,Ahlselland Bellalite.

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MotorizedLightingSolution, MOONS’

www.moonsindustries.com

LEDcircuitsorLEDdriversareelectrical circuitsthatpowerlight-emittingdiodes (LEDs).LEDpowersuppliesmustprovide sufficientcurrenttolighttheLEDatthe requiredbrightness,buttheymustlimitthe currenttopreventdamage.Since2005, MOONS’hasbeeninvolvedintheprocesses ofdesigning,engineering,andmanufacturing LEDlightdrivers.Inadditiontotraditional constantvoltageandconstantcurrentLED drivers,weofferstate-of-the-art,constant powertoleading-edgeintelligent programmableLEDdriverssuchas0-10V dimmabledrivers,DALIdimmabledrivers,and DMXdimmabledrivers.

MOONS’presentedtheworld’sfirstfullymotorizedspot/tracklightingsolutionincludingdimming,beamshaping,CCTtuning,andhorizontal/verticalangleadjustment.

MOONS’LEDdriversareusedinawide varietyofapplications,includingroadways, tunnels,highmasts,sports,landscapes,and arealighting,aswellasindoorambient,task, performance,andstagelighting.

InviTrack,LITE&NPC

www.npc.lighting

LeadingLEDlightingsolutionsproviderLITE andNordicPowerConvertorshave announcedtheforgingofagroundbreaking partnershipthatissettoexpandthehorizons ofthelightingsector.Together,thetwo market-leadingcompaniesarelaunchingthe revolutionaryInviTrack–aninvisibletrack driver.-totheUKmarket.Thisnew technologyhasthecapabilitytotransform lightingdesignpossibilities,seamlessly blendingaestheticsandfunctionality.InviTrack drivershideentirelyinthetrack,allowingfor newandinnovativeluminairedesignideas.

InviTrackDriversarefullyintegratedintothetrack systems.

TheInviTrackhasbeenmanufacturedbythe DanishLEDlightingexpertsNordicPower Convertorsandwillbedistributedexclusively intheUKbyNPC-UK(PartofLiteGroup). High-endtracklightsarebecoming increasinglyimportantindesign-ledprojects suchasupmarketretailstores.Byusingthe InviTrack,high-endluminairescanbefully showcasedonatracksystemwithoutthe worryofanLEDdriverandtrackadaptor beingvisibleorinterruptingcleanandflowing lines.

Thehiddendriverhastheabilitytocreatea high-endlookandaesthetic,withaminimalist designfortracklights.Addingtoitsappeal, aswellasfittingintodifferenttrackmodels, thedriverisavailableinthreestylishcolours–white,blackandgrey.Thisallowsthedriverto blendintoexistingdécor.InviTrackiscertified tocarryluminairesweighingupto1.5kgper driver.Thisaddstoitsflexibilityandversatility forarangeofapplications.InviTrackisalso designedtoallowluminairestorotatenearto 360°sotheycanbepositionedwhere needed.Durabilityandlongevityhavealso beenfactoredintothedesignofInviTrack. OverheatingisarisktothelifetimeofanyLED driver;tocombatthis,InviTrackDalihasaT (case)maxof85°C,increasingthelifetimeand overallreliabilityofthesolution.

Beingflicker-freeisalsoanimportantfactorin producinggoodqualitylightthataidsin improvedhealthandsafetyofthoseworking orspendingtimeinthesurrounding environment.Thisisaparticularbenefitin retailsettings,asconsumersaremorelikelyto lingerandmovetopurchaseinawelcoming andcomfortablelitenvironmentratherthan onewithpoorlightquality.NPC-UKManaging DirectorPaulBarnessaid:“TheInviTrackfrom NordicPowerConvertorsisarevolutionary idea.

We’rethrilledthatLITEhasbecometheir partnerofchoicetopromotethisoutstanding solution.It’satrulyexcitingopportunityfor LITE,NordicPowerConvertorsandthe lightingsector.”

NanoLEDDrivers,eldoLED

www.eldoled.com

Toanticipatethetrendofhiddenlightingand topreparefornewEuropeanbuilding regulations(EPBD)andEuropean cybersecurityregulations(CRA),eldoLEDis introducinganewrangeofECOdriveLED drivers,designedfortheEuropeanmarket.As aleaderinthedesignandengineeringof state-of-the-artLEDdrivertechnology, eldoLEDhasanestablishedtraditionof creatinglightingsolutionsthatdeliverQuality ofLightforluminaires,elevatemodern aesthetics,enhancecomfortandreduce energyconsumption.eldoLEDbuildsonthat traditionwiththedevelopmentofthenew NanofamilyofECOdriveLEDdrivers.

eldoLED’sNanofamilyof12WLEDdrivers.

TheNanofamilyof12WLEDdriversoffer programmable,digitalsolutionsinan exceptionallysmallsizecapableofinsertion within35mmaperturesfortoday’s miniaturizeddownlights,spotlights,and pendantlightingdesigns.TheNanofamily fromeldoLEDprovidescost-effectiveenergy savingoptionsthatarecompatiblewith analoganddigitaldimmingprotocolsdownto 1%aswellasCasambi-enabledoptionsfor wirelesscontrol.

WiththeNanofamilyofsmallformfactor drivers,applicationssuchashospitality,retail, orresidentialcaneasilyachieve“quiet” ceilingswithoutsacrificingtrueQualityofLight andcontrolwithintheilluminatedspace.All Nanodriversarefullyprogrammablewitha newcloud-nativeprogrammingtool,called eldoLEDSTUDIO,withadvanced cybersecurityandfulltraceability.

GeertvanderMeer,ProductMarketingand EngineeringDirectorEuropeateldoLED,says “Weareexcitedtoprovidethenextstepin LEDdriverminiaturizationwiththeECOdrive Nanodrivers.ItisthesmallestLEDdriverinits voltagerangeandisaperfectexampleofhow eldoLEDiscontinuingourheritageofcreating qualitydesignsthatsupportourvisionof QualityofLightandreduceenergy consumptionbyenablingeasysensor integrationinlinewithEPBDrequirements.” TheECOdriveNanodriverfamilyisexclusively designedforEuropeandscheduledfor releaseinthesummerof2024.

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SensorX,TRIDONIC

www.tridonic.com

SensorX,anAI-basedsensorfromTridonic detects“life”onstreetsandpavementsso theycanbereliablyilluminatedwithminimal powerconsumption.SensorXcanbeusedto dispenselightondemandandthussave energyandreducelightemission.Thesensor alsoenablesroadtraffictobemeasuredand differentiated,pavingthewayforsmart planningandcontroloftrafficvolumesand parkingspaces.Insteadofmotionsensors, Tridonicisusingmachinevisionforthisedge device–andhasfoundawaytomakethe technologynotonlyeconomicalandsimplein itsapplication,butalsodata-secureformass useoutdoors.

Modernstreetlightingmuststrikeabalance betweennight-timesafety,energyefficiency andminimallightemission.These requirementscanallbemetbydispensing lightondemand.SensorXdetectsany pedestriansorvehiclesinthevicinity.This resultsinadaptivelightingscenariossothat, forexample,lightinglevelsonstreetsand pavementscanbedimmedinoff-peaktimes andbrightenedbackupastrafficflows increase.Tridonicsupportsthisprinciplewith itsAi-based,DALI-compatibleSensorX,which makestheuseofmachinevisioninoutdoor applicationsbothconvenientandeconomical.

Zhaga-compliantSensorXdetectsand measuresthepresenceofobjectsinafreely definedarea.Itsintegratedmachinelearning algorithmnotonlydetectsthepresenceand numberofobjectsbutalsodistinguishes betweenvehicletypes,pedestriansand cyclists,dependingonthetaskithas “learned”.

SensorXinoutdoorapplications.

Multipleapplicationsinsmartcities:

Dosingthestreetlightingisjustoneofmany applicationscenariosforthedatathatthe all-rounderSensorXdelivers.Userscaneasily definethezoneandtypeofassetstobe detectedviaanapp.Oneoptionwouldbeto measuretrafficdensity–inthiscase,azone couldbeaspreciseasasinglelane.Inthe smartcityofthefuture,expertscouldevaluate thedatatooptimizetrafficflows,forexample. Trafficplannerscouldusetrafficmetering, includingdifferentiationbyroaduser,toadapt trafficlightphasestocurrenttrafficvolumesor toreleaseadditionallanes,avoiding congestionandunnecessaryCO2emissions.

SensorXcanalsomakeparkingmanagement mucheasier.Thetraditionalsensorsusedfor thispurposeareofteninstalledunderground, andconstructionteamshavetodigthemup, relocateandrewirethemif,forexample,acar parkisrepurposed.Errorscanoccurwith thesesensorsiftheyarecoveredinsnow. SensorX,ontheotherhand,canbequickly andeasilyinstalledonZhaga-compatible streetlightsandputintooperationviaanapp. BecauseSensorXissoeasytoretrofititcan takeintoaccountthedynamicsofurban outdoorareasandhelptomakethemmore sustainable.

Edgecomputingforenergyefficiencyand datasecurity:

Asaneasy-to-installedgedevice,SensorX processesalltheinformationinthedevice itselfanddoesnotsendimagesorvideosto anyexternalinfrastructure.Thesensor communicatesviaDALI,sendingonlyits interpretationofthealgorithm,nottheinput material.SensorXdoesnothaveanymemory ofitsown.Thisarchitecturenotonly guaranteesdataprotection,butalsoprovides morebandwidthfortransferringlargeimageor videofiles.SensorXconsumesjust1Wper node.CompliancewiththeZD4istandard togetherwithDALI-basedcommunication ensuresinteroperabilitywithawiderangeof systems,makingiteasytousemanydifferent applications.

InApril2023,theinnovativeSensorXconcept wasawinnerinthe“Mobility”categoryofthe ZhagaSmartCitySensorsAwards.SensorX willbeavailableinlimitedquantitiesfromApril 2024.

EuroLED/SunLED, Seaborough

www.seaborough.com

Seaborough’spresenceattheboothof LuminusDevices,oneofSunLED’squalified componentsuppliers,wasatestamentto innovationastheydemonstratedSunLED,a near-infraredlight-basedtechnologythat operatesbeyondthevisiblespectrum.Witha wavelengthof850nm,SunLEDstandsoutnot justforitsilluminationcapabilities,butforits scientificallyprovenhealthbenefits.

Dr.AnneBerends’presentationonMondayat theexhibitor’sstageinHall5.0highlightedthe intersectionoflightingandwell-being,drawing attentionfromindustryprofessionalsand manyfairvisitors,bothluminaire manufacturersandlightingdesigners. SunLED’spotentialtodecreaserestingheart rate,enhancementalhealth,andreduce inflammatoryindicatorswasmetwithkeen interest.TheadaptabilityofSunLEDwas demonstratedinanofficefloorlampsand USBpoweredaccessory,idealforofficeor homestudyareas.Theelderlycaresector

alsorecognizedthevalueofSunLED, envisioningreadinglampsthatoffer therapeuticbenefitsalongsideillumination.

Dr.AnneBERENDSexpainedthemechanismof Near-Infraredlight.

ComparisonofdifferentLED/Phosphortechnologies.

EuroLEDisanewnarrow-bandemitter technology,basedon Eu3+ Eu3+ well knownforitsultra-narrowbandemissionin theredspectralregioandwouldlargely increasetheefficiencyofLEDs,asitradiatesa muchlargerfractionofthelightata wavelengththatcouldbewellobservedbythe humaneye,whilealsoofferingthepossibility forahighcolorrenderingindex(CRI).The reasonwhy Eu3+ isthat Eu3+ ionsdo conventionallynotabsorbthebluelight. EuroLEDoffersasolutiontothisproblemand enablesforthefirsttimetheuseof Eu3+ -dopedmaterialsforsolidstatelighting applications.EuroLEDhasthepotentialto boosttheefficiencyofwhiteLEDsby15-20%.

EuroLEDworksviaananoscalesensitization mechanism,whichallowsforanalmost independenttuningoftheabsorptionand emissionproperties.EuroLEDisbasedona fundamentallynewnanotechnology,which allowsforanalmostindependenttuningofthe emissionandexcitationcharacteristicsof luminescentmaterials.Conventionally,these characteristicsarecloselyconnectedasthey aresetbythehostmaterialandactiveion specie(s)dopedinthehostmaterial.EuroLED separatestheabsorptionandemissionevents byusingtwodifferentmaterials,thereby openingupanentirelynewrangeof possibilitiestodesignthesecharacteristics independently.

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Bender+Wirth

www.bender-wirth.com

Bender+WirthCelebrates125th Anniversary!

“Theonlyconstantischange,”amaximthat holdstrueforthe125-yearhistoryofBender+ Wirth.

ManuelaandMartinBenderinfrontoftheircompanylogofrom1899atLight+BuildinginFrankurt 2024.

Theharnessingofduroplasticsand thermoplastics,theintroductionoffluorescent tubes,theinventionofgasdischargelamps, low-voltagelamps,compactfluorescent tubes,andindeed,theadoptionofLEDsfor lightingpurposesarejustafewofthepartly disruptivechangesinthelightingindustrythat haveoccurredduringthecompany’shistory.

Thisyear,ManuelaandMartinBender,along withtheirteam,celebratethe125th anniversaryofBender+Wirthandthe25th anniversaryoftheirUSbranch,looking forwardtoafuturethatcontinuestoevolve.

Makrolon®TC,Covestro

www.covestro.com

AttheLight+Buildingtradefair,Covestro presentedawide-rangingprogramof innovativematerialdevelopmentsforthe lightingandbuildingindustry,includingthe currenttrendsof“electrification”and“smart connectivity”.Covestroalsosupports customersfromconceptionthroughproduct anddesigndevelopmentto commercialization.

Inlinewiththeincreasingdemandformore sustainableproducts,thecompanyoffers Makrolon®Rpolycarbonatesmadefrom mechanicallyrecycledplasticwasteaswellas ISCCPLUS-certified,mass-balancedgrades fromtheMakrolon®RErangeusingbiowaste

Innovativepolycarbonatesforlightingtechnology.

andbio-residues.Thisrangeispartof Covestro´sCQportfolioofproductsand technologieswithaminimumof25% alternativerawmaterials.Acurrentexampleof theseproductsareswitchesandsocketsfrom theSAGA™seriesfromABB.

Asanalternativetometalheatsinks,the Makrolon®TCseriesoffersamaximumof thermalconductivity.Thesematerialsnotonly enableweightreduction,butalsodesign flexibilityandmoreenergy-efficientproduction thanwiththeconventionalmaterial aluminum.

GLOPTICAM4.0andGL SPECTIS4.0,GLOptic

gloptic.com

GLOpticpresentstheGLOPTICAM4.0M SC,aluminanceandcolormeasuringdevice withsequentialimaging,fordemanding metrologicalapplicationsinlaboratoriesand industry.Withitsrevolutionarytechnology,this spectrallycorrectedRGBcameraavoidsthe shortcomingsofpreviousdevicesandoffers superiorapplicationcharacteristics.The OPTICAM4.0MSCisbasedonamodular technologythatintegratesaluminancemeter andaspectroradiometerinasinglehousing.It enablesthepreciseandfastmeasurementof luminanceandcolorparametersforlight sourcesofdifferentsizes,suchasLCDdisplay panelsorbacklitelectronicmodules.This makesitidealforlightmeasurement applicationsinlaboratoriesandindustryas wellasforregularqualitycontrolinproduction. Otherapplicationexamplesincludethe characterizationofdisplaysondisplaypanels, forexample,invehiclecockpits,aswellasthe generalevaluationofluminanceandcolor uniformityofmonochromeandcolordisplays. Basedonaspectralcorrection,thedevice providesprecisex/ycoordinatesforeach pixel.Theuniquesequentialmeasurement methodoftheOPTICAM4.0MSCensures highersignallevelsandthereforebetter accuracycomparedtoconventionalsolutions withbasicopticalfiltersorbeamsplitters. Supportedbythesuper-fastOPTICAMSoft 4.0Msoftware,luminanceandchromaticity areanalyzedathighspeed-measurement resultsareavailableinlessthanthree

seconds.Otherfeaturesofthedevice,such asthebuilt-indepolarizerandthe9-megapixel CMOSimagesensorin1-inchformat,provide highdynamicrangeandensurethatthe systemisideallyequippedforcurrentand futuredisplaymeasurementchallenges.

Attheforefrontofprecisionmeasurement technologyliestheGLSPECTIS4.0M spectroradiometer,designedtousherinanew eraofaccuracyandflexibilityinoptical radiationmeasurements.Theprimary objectiveinitsdesignwastocreateamodular instrumentthatcouldbetailoredtomeetthe uniqueneedsofcustomerswhilemaintaining laboratory-gradeaccuracy.Equippedwith thermalstabilizationdirectlyappliedtothe detector,theSPECTIS4.0Meffectively reducesnoiseanddarkcurrentvalues.

Thisenhancementsignificantlyimproves measurementcapabilitiesforlow-levelsignals, particularlyintheultravioletrange,suchas LEDUV-C,whileensuringindependencefrom ambienttemperaturefluctuations.Ahallmark featureoftheSPECTIS4.0Misitsvariable opticalpathmodule,offeringunparalleled flexibilityinadjustingthesystem’soptical properties.Bysimplychangingtheaperture andfilters,userscanquicklyadaptthe instrumenttosuitspecificmeasurement needs,eliminatingthenecessityfordedicated probesforeachapplication.Moreover, calibrationparametersaremaintainedacross allopticalpathconfigurations.

TheSPECTIS4.0Misequippedwiththe latestopticalsolutions,ensuringpreciselight qualitycontrolacrossavarietyofapplications. ItsinclusionofaPeltiermodulereduces measurementuncertaintybyminimizingsignal noiseanddarkcurrentlevels,makingitideal fordemandingmeasurementtasksinboth laboratoryandproductionenvironments.With itsuniversalmodulardesign,theSPECTIS4.0 Moffersunmatchedflexibilityforevery industry.

TheSPECTIS4.0Mstandsasatestamentto GLOptics’dedicationtoinnovationand excellence.Withitsunmatchedprecision, flexibility,andreliability,itempowersusers acrossindustriestoconducthigh-precision lightsourcetestingwithconfidenceand accuracy.

IQSystem,NANOPTIQS

www.nanoptiqs.com

IQSNANOPTIQShaslaunchedIQSystem, thefirstnanotechnologylightingopticstobe deliveredasamodularkit.IQSystemmeans lightingmanufacturersanddesignerscannow designandproduceluminairesthataremuch slimmer,savematerialandenergy,and providepreciselycontrolledlightdistribution forawidevarietyofapplications.Theythus bettermeettherequirementsforsustainable,

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low-energylightingprojectswhilecreatinga morecomfortableenvironmentforusers.

PresentationoftheIQSystemattheDesignPlaza.

AluminairebuiltwithIQSystem,forinstance, weighslessthan135gpermeteryetdelivers over20lumenspergramofluminaireweight, settinganewindustrystandard.

IQSystemconsistsofthreecomponents, eachwithaspecificfunction:

• Areflectorforprimarylightshapingand control.

• Anantiglarecoverforenhancedvisual comfortandalowUGRrating.

• Nanofilmatitscoreenablingittoachieve supremeopticalprecisionanddesiredlight distribution.

Luminairemanufacturerscanthuscombine theirowncreativitywithfundamentallynew technologicalpossibilitiestodeveloptheirown uniquesolutionsforgalleries,showrooms, corridors,warehouses,largehalls,building receptionareas,andanywhereelsewhere bothvisualcomfortandmaterialandenergy efficiencyareimportant.

IQSystemdiffersfromexistingoptical modularsystemsinthatitisbasedonoptical nanotechnology.Thecomponentsurfaces haveastructurecreatedusingmathematical algorithmsonthesamescaleasthe wavelengthoflight.IQSGroupcompanies design,developandproducethese sophisticatednanoandmicrostructureswith precisearchitecture,usingtheminarangeof fieldsfromanti-counterfeitingthrough medicinetomaterialengineering.Lighting technologiescanthusbenefitfromexpertise inotherfields.

TheIQSystemsolutionwaspresentedatthe Light+Building2024tradefairinFrankfurtam Main(Germany),whereitattractedgreat attention.IQSNANOPTIQSalsointroduced theirinnovativeopticssystematthefair’s Architellerpresentationformat,earningpraise foritssustainablenano-optictechnologyfrom architectsandexhibitorsalike.This recognitionunderscoresIQSystem’s innovativeapproachtomeetingmodern designandenvironmentalstandards.

MarekŠkeren,ResearchandDevelopment DirectoratNANOPTIQS,said:“This innovationrepresentsyearsofdedicatedeffort andmarksasignificantadvancementin lightingtechnology.Ourjourneyinvolveda

rigorousprocessoftesting,refinement,and solvingcomplextechnicalchallenges. Throughcollaborationwithourpartners,we refinedourtechnologytomakeitpractically applicableandeffective.Thedevelopment processwasbothchallengingandrewarding, leadingustomakeanotablebreakthroughin lighting.”

IQSNANOPTIQSisamemberofIQS Group.

NOMUS,LEDCity ledcity.io

Lightingaccountsforupto30%ofenergy costsincommercialbuildings.WithLEDCity’s plug-and-playlightingsystem,youcanreduce costsinnotime,thankstoretrofitting.Leave theautomaticregulationoflightintensityand durationtotheNOMUSlightingsolutionand savebetween60%and80%comparedto modernLEDlightingsystems—withoutany lossofcomfort.

LEDCityattheLight+Building2024.

AttheLightandBuildingevent,NOMUS,their mostadvancedlightingsystembuiltasan all-in-onesolutionforentirebuildingswas showcased.NOMUSutilizes’TrueSwarm Intelligence’:employingintelligentalgorithms andintegrated’computers’,theirluminaires communicatewirelesslywitheachother. Informationisutilizedinreal-timeto automaticallyandproactivelyregulatelight intensityandduration,allowingthelightto envelopaperson’severysteplikeaswarm. Trueswarmintelligencecombineshighly efficientlightingwithanequallyhighlevelof comfort,safety,flexiblesettings,and customizedfunctions.Additionalfeatureslike daylightcontrolensurethatenergysavingsare maximized,andthankstotheIoT-based system,over-the-airupdates,remote configuration,andevenremotemaintenance arepossible:Theconditionofalllightsources ischeckeddaily.Thismeansthatfaultsare detectedautomatically,renderingtedious inspectionroundsathingofthepast.

Thecomprehensivesensordatacollected fromthelightingcanbeanalyzedinreal-time viaremoteaccess,andtheenergy consumptiondataissentfrequently, simplifyingESGreportingandlayingthe groundworkforfurtheroptimization.Sensor datacanalsobemadeavailabletopartner companiesthroughtheirinterface(API)to

automateandoptimizeotherareasofbuilding technology—thusextendingbeyondlighting.

Theyalsoshowcasedthattheirlighting systemisplug-and-play:Thankstotheir modularapproachwitha manufacturer-independentstandard,their intelligentlightsourcescanbeeasilyinstalled inexistinglampholders.Thisisnotonly simplebutalsocost-effective.Byintegrating allcomponentsintoeachlightsource, outdatedlightingcanbequicklyconvertedto thelatesttechnologywithasimpleretrofit.

AfinalhighlightincludestheirOEMsolution, theNOMUSSensorNodeDALI.Containingall sensorandcontrolcomponents,theSensor NodeDALIseamlesslyintegratesintovarious luminaireswithitsindustry-standard compatibility.Design-wiseappealingandwith ahighlevelofintelligence,theirtechnology meetsthehighestcomfortrequirementswhile simultaneouslycombiningenergyefficiency andconvenience.

LowBlueLightStreetLights, EDISONOPTO

https://www.edison-opto.com

HarnessingthePowerofColorTemperature forEnvironmentalProtection:

Lowbluelighttechnologydirectlyaddresses biologicalrhythmsbyminimizingthebluelight componentinLEDlamps.Thisadjustment helpsregulatethenaturalsleep-wakecycles (circadianrhythms)ofhumans,animals,and plants.Excessiveexposuretohigh-energy bluewavelengths,particularlyatnight, disruptstheseroutines.Lightsourcesrichin bluelightcanstimulatethevisualsystem, hinderingmelatoninproductionandnegatively impactingsleepquality,potentiallyleadingto sleepdisorders.EDISONOPTOleveragesits expertiseinLED5050researchand development,alongwithinnovativeoptical lightingmodulesolutions,toimplement low-bluelighttechnology.Thisapproach effectivelyreducesthebluelightratioinLED fixtures,minimizingthenegativeeffectsof artificiallightingonhumans,animals,and plants.Ultimately,EDISONOPTO’shealthy lightingsolutionspromotenaturalbiological rhythms,fosteringhealthysleeppatternsand contributingtoabetterqualityoflifeforall.

TheGrowingStringencyofBlueLight RegulationsforEnvironmentalProtection: Majorregionsworldwidearetakingactionto combatlightpollutionandprotectthe environment.Thisincludesstricterregulations onlightsources.Forinstance,theEuropean Union(EU)hasestablishedstandards,while theAmericanNationalStandardsInstitute (ANSI)(formerlytheIES)intheUnitedStates andtheJapanesegovernmentallmandate theuseoflow-bluelighttechnologyin architecturallighting.Furthermore,theChilean

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”OceanLamp”projectexemplifiestheglobal commitmenttoenvironmentalwell-being.This initiativeaimstoredesignstreetlightsalong beachesandcoastlineswiththeintentionof safeguardingcoastalecosystems.Traditional high-pressuresodium(HPS)streetlights contributetolightpollutionandgenerate excessiveheat,bothofwhichhave detrimentaleffectsonmarineorganismsand coastallife.TheOceanLampprojectseeksto replacetheseoutdatedfixtureswithnewLED streetlightsandincorporatelow-bluelight LEDlightingsolutions.Thisapproachwill significantlyreducelightpollutionandmitigate risingambienttemperatures,ultimately protectingthedelicatebalanceofthemarine environment.

EDISONOPTOleveragesitsexpertiseinLED 5050researchanddevelopment,alongwithinnovativeopticallightingmodulesolutions,toimplementlow-bluelighttechnology.

EDISONOPTOPioneeringLowBlueLight Innovations:

EDISONOPTOisdedicatedtoadvancinglow bluelighttechnology.Toachieveitstargetof lessthan1%bluelight,thecompanyhas developedarangeofoptionalLEDlighting solutions(A,B,andC)cateringtothespecific needsofvariousapplicationmarkets.

• OptionA:PrioritizesaprominentPCAmber color,closelyresemblingtraditionalsodium lamps.Thisoptionachievesalowcolor temperature(CCT<1800K),idealfor applicationsseekingafamiliarreplacement.

• OptionB:Emphasizeshighcolorrendering (CRI≥70Ra),ensuringroadsafety requirementsaremetinconventionalstreet lightingprojects.

• OptionC:Focusesonmaximizingefficiency whilemaintainingaspecificcolor temperature.Thisoptionboastssuperior performanceof130Lm/Wwithaglasslamp cover.

SuccessStory:Helpa,Slovakia: ThepicturesquetownofHelpa,nestledin Slovakia’sBreznoDistrict,isrenownedforits stunningnaturallandscapes.Committedto protectingthisecologicaltreasure,thelocal governmentoptedforEDISONOPTO’s professionalSGStreetLightSeries.These streetlightsareZHAGAD4icompliant, enablingsmartcontrolfunctions.This intelligentsystemautomaticallyadjusts brightnessbasedontrafficflowandoperating

hours,optimizingenergysavings.EDISON OPTO’s5050high-efficiencyLEDsdeliver energysavingsexceeding30%comparedto conventionalLEDstreetlights,evenduring installation.Additionally,theSGStreetLights boastaDARKSKYdesignthatminimizes upwardlightintrusion.Thisthoughtfulfeature createsatranquilandcomfortablenighttime environmentforresidentswhilefostering harmoniouscoexistencewithnocturnal creatures.

Helpavillagehasbecomeapotential forerunnerinEurope,implementinga comprehensivelow-bluelightstreetlamp replacementprogram.EDISONOPTO’s solutionoffersseveraladvantagesforroad lightingprojects,includingtool-free maintenance,avarietyofoptionaloptical lenses,andhighlumenoutput.These features,alongwiththelowbluelight technology,havegarneredhighpraisefrom HelpavillageinSlovakia.

ThetownofHelpa,locatedintheBrezno Districtinnorth-centralSlovakia,isfamousfor itsrichnaturallandscapes.Inordertoprotect theecologicalenvironment,thelocal governmentselectedtheEDISONOPTO professionalSGStreetLightSeries.This streetlightcomplieswithZHAGAD4i,the smartcontrolfunctionwhichcanautomatically adjustthebrightnessofthestreetlight accordingtotrafficflowandoperatinghours toachieveenergysaving.

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LightingtheWay:Groundbreaking TrendsandTechnologiesfrom Light+Building

InterviewedandEditedbyLEDprofessional

InthebustlinghallsoftheLight+ Building2024eventinFrankfurt,the futureoflightingandbuildingtechnologieswasnotjustdisplayedbut vividlybroughttolifethroughtheinsightsandinnovationsofindustry leaders.Thisarticlecompilesexclusivestatementsfrompioneersat theforefrontofthesector,offeringa uniquewindowintotheadvancements andtrendsshapingourenvironments. Fromthegrandeuroftheworld’sleadingtradefairforlightingandbuilding servicestechnology,we’vegathered frsthandaccountsdetailingeachcompany’sshowcaseinFrankfurt,their latestinnovationsondisplay,andtheir observationsofoverarchingtrends inthelightingfeld.Theseleaders, throughtheirinterviews,providea comprehensiveoverviewofthedirectioninwhichlightingdesign,technologyandapplicationsaremoving;highlightingtheintegralroleofsustainability,digitalization,andhuman-centric designintheevolutionofourbuiltenvironments.Joinusaswedelveinto themindsandmotivationsbehind someofthemostinfuentialcompaniesandpeopleinthelightingindustry today,asseenatLight+Building2024.

Dr.AlfredFELDER,CEOofZumtobelGroup. Photocredits:ZumtobelGroup,Studio Fasching.

“Thisyear,allZumtobelGroupbrands werepresentedintheForumoftheMesse Frankfurt,attheworld’sleadingtradefair forlightingandbuildingtechnology;anew locationforthecompany.Wewereable toshowcasepioneeringlightingandtechnologysolutions,shiningalightondigitalizationaswellasreflectingtheZumtobel Group’scorporatephilosophyintermsof sustainability:Theconceptofourexhibition spacecombinedaspectsofsustainability with”lightness”inarchitecture.Theemissionsfromtheproductionoftheexhibited luminaires,interiorandarchitecturalelementsweredocumentedtransparently. Thepossibilityofreuseortheuseofalreadyrecycledmaterialsappliedto85% oftheexhibitionspace,whichsignificantly reduceditsCO2 footprint.Inthisrespect, wearedelightedthatoursustainablydesignedconceptwasawardedthefirstever ”SustainableExhibitionStand”prizebythe independentjuryoftheDesignplusAwards byLight+Building.”

“Therecanbenoinnovationwithoutconsideringsustainabilityandefficiency,alwaystakingintoaccounttheneedsofpeo-

pleandnature.Lightquality,anenergyefficientlightinginfrastructureandofcourse aproductdesignbasedontheCircular DesignRules–whichareanintegralpart ofourproductdevelopment–forlongevity arekeyfactorsfornewdesigns.Thereisa cleardemandforcirculardesignandrecyclablematerialsorproductsthatareeasy torefurbish.Anothertrendisacousticlighting,whichcombineslightingtechnology withsound-absorbingqualitiestoreduce noisepollution,especiallyinopenspaceoffices.Afuturefocuswillalsobeonwireless IoTsolutions.”

“Afuturefocuswillalsobeon wirelessIoTsolutions.”

ALFREDFELDER

“AnotheremergingtrendthatIhavejust touchedon,inparallelwithsustainability, issmartlightingcontrol,whichallowsfora reductioninenergyconsumption.Aspart ofthetradefair,theZumtobelGroup’snew IoTproductbrandKeyturewaspresented forthefirsttimetothepublic.Keytureis ournewcloud-basedconnectivityandIoT ecosystem.ItsintelligentkeyfeaturessupporttheThornandZumtobelbrandstooptimizetheuseoftheirluminairesinprofessionalsensor-supportedlightingsystems toenabletheiroperationwithmaximum energyefficiency.Weseeagreatfuturein thisnewIoTsystemthatcanhelpmake animportantcontributiontothedecarbonizationofbuildings.Furthermore,there isanincreaseddesireformoreflexibleand modularsystems,user-friendlyandintuitive products,individualdesignandextradurability.Thenextgenerationofoursuccessful TECTONcontinuous-rowlightingsystem, announcedforthefirstquarterof2025and Zumtobelbringingprestigiousdesignfirm Pininfarinaonboardasapartnertohelp, willmeetthesefutureuserneeds.”

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AlfredFELDER,ZumtobelGroup z.lighting

HubertusVOLMERT,TRILUX www.trilux.com

“Weconsciouslychoseaveryopenstand conceptbecauseweaimtobetransparentwithourcustomersandvisitors.It’s meanttobeinvitingandhighlystructured, soourvisitorscaneasilydiscernthemain focusesofourworkanddevelopments. Thisiswhatwehaveimplemented,allowinganyoneatourstandtoquicklyseefour primaryareasoffocus.Theseincludethe officeareawithournewYONOSoffice modularsystem,thenoursignificantlyadvanceddigitalsolutions:LiveLink,ourlight managementsystem,andTRILUXONE, followedbytheinnovationsforexterior lightingintheoutdoorarea,andthefourth focusonindustryandindustriallogistics.”

“Intheofficearea,ourYONOSofficemodularsystemhasbeencompletelyrethought fromanapplicationpointofview.We’ve deeplyconsideredhowtheofficeworldis changing.Ourgoalistocreatelivingand workingspacesthataresoattractivethat employeesfeelcomfortable.We’veponderedoverwhatlightneedstolookliketo achievethisandhavecapturedthiswith thehighlyflexibleYONOSsystem,which canilluminatebothtraditionalandnew officeworldsandadaptseamlesslytoa changingworkenvironment.”

“ThehighlyflexibleYONOS systemcanilluminateboth traditionalandnewoffice worlds.”

HUBERTUSVOLMERT

“E-LineProrepresentsanevolutionofthe well-knownE-Linethathasbeenavailable onthemarketformanyyears.Thenew mountingrailfeaturesnumeroustechnical refinementswiththeaimofenablingeven fasterinstallations,thussavingworktime on-siteandofferingmoreflexibilityinlight placement.Now,alightingfixture,aspotlight,oranIoTsystemcanbeplacedat virtuallyanypointalongthismountingrail.”

Zumtobelhassettheworldrecordtitleforlargestcontinuousceilinglight,measuringmorethan 200m2
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E-LinePro–TRILUXhastakenthehighlysuccessfulEuropean-widecontinuouslinetothenextlevel. HubertusVOLMERT,CEOofTRILUX.Photo credits:Trilux.

BenjaminHEINE,ERCO www.erco.com

Dipl.-Ing.(FH)BenjaminHEINE,Marketing& ProductManagement-GroupManagerContent atERCO.Photo:LEDprofessional.

“Fromourperspective,it’sallaboutdurability—utilizingproductsinabuildingfor aslongaspossible.However,applyingthis concepttoatradefairboothischallengingduetoitstemporarynature.Therefore, we’veexploredhowtotranslatedurabilityintosustainabilityatafair.Thisinvolves consideringwhatwecanforego,suchas omittingsecondaryflooringanddesigningabooththatisreusableinitsstructure andinternals.Weutilizeroadcases,where productsareinstalled,whichhavebeen andwillcontinuetobeontheroad,and transportboxesfromthefactory,repurposingthemasseating.Furthermore,the fabricsfromthestandwillbetransformed intobags.Essentially,it’saboutreusing materialsofthetradefairbooth.”

“Weseesignificantsustainabilitybenefitsinusinglight precisely.”

BENJAMINHEINE

“Weseesignificantsustainabilitybenefits inusinglightprecisely—illuminatingonly wherehumanperceptionrequiresit.This involvesfocusingonprecisionoptics,emphasizingluxperwattforaccentlighting overlumensperwatt,andreducingwatts persquaremeterforgenerallightingwith azonalapproach.Forgenerallightingthe epitomeofefficiencyisachievedbycombiningtheefficacyandvisualcomfortof downlightswiththeflexibilityofpositioning illuminationonlywhereit’sneeded.This reducesenergyconsumptionandmatches theflexibilityrequiredinmodernoffices. Changesinlayoutcanbeeasilyaccommodatedbyadjustingthelightingaccordingly.”

“Whenaskedaboutkeytrendsinlighting, sustainabilityisthefirstwordthatcomes

tomind.Weneedtomakesureit’snot justatrend,butapermanentchange.It’s excitingtoseemanydifferentapproaches —whetherit’sproductdesign,production methods,orapplicationstrategies.Durable products,recyclablematerialsandcarbonneutralproductionareexamplesthatshow thattherearemanywaystoachievesustainability.Whatmattersistoact,notto hesitate.”

FilippoBETTINZOLI,PROLICHT www.prolicht.at

FilippoBETTINZOLI,HeadofMarketing&ProductManagementatPROLICHT.Photo:LED professional.

“Atthisyear’sLightandBuilding2024, amidstaspectrumofinnovations,two standoutdevelopmentsunderscoreour commitmenttoadvancingtheforefront oflightingtechnology.Thefirstnotable innovationistheintroductionoftheLullaby productfamily,acollaborativecreationwith therenownedFrench-ItaliandesignerMark Sadler.Thisacousticlightingfamily,aptly namedLullaby,isdesignedtoenhance officespaceswithitstechnicalprowess andhighperformance,whilealsocatering tolargerspaceswithacloudconfiguration availableasastandardproduct.”

“Thesecondpivotaladvancementwe’re excitedtopresentisthefullcompatibilityof ourcomprehensiveproductportfoliowith theMattercontrolsystem.Thisintegration signifiesamonumentalleaptowardsthe futureoflightingcontrol,enablingusersto seamlesslymanageandinteractwithour entirecataloguethroughMatter.Ourexhibitionspacefeaturesanextensivesetupfor visitorstoexperiencethisinnovationfirsthand,usingiPadstocontrolandmanipulatelightingscenarios.Thismovetowards Mattercompatibilityisn’tjustaglimpse intothefuture—it’sapresentrealityforus, embodyingourvisionfortheintegrationof smarttechnologyinlighting.”

“Acleartrendthathasemerged,andone thatwe’reembracingwholeheartedly,is miniaturization.OurlaunchoftheJust Blacksystemheraldsaneweraforlighting solutions,featuringincrediblysleek,integratedlowvoltagetracksthataremerely fivemillimeterswide.Thisinnovationopens upamyriadoflightingpossibilities,allowing

foravarietyofinsertsandconfigurationsto suitanyspace.Themovetowardssmaller, morediscreetlightingfixturesreflectsthe industry’sshifttowardsblendingefficiency withaestheticappeal,madepossibleby advancesinelectronicsandnewtechnologies.”

“ThismovetowardsMATTER isourvisionfortheintegration ofsmarttechnologies.”
FILIPPOBETTINZOLI

“Theseinnovationsrepresentthedirection webelievetheindustryisheaded,witha strongemphasisonsmartcontroltechnologies.OurembraceoftheMattercontrolsystemisindicativeofourbeliefinthe futureoflighting—afuturewhereeaseof use,integration,andsmartfunctionalityare paramount.Thesetrends,highlightedat LightandBuilding2024,arenotjustabout anticipatingwhatourclientswilldemand butarealsoatestamenttoourdedication toleadingthechargeintheevolutionof lightingtechnology.”

ClemensMÜLLER,amsOSRAM ams-osram.com

Dr.-Ing.ClemensMÜLLER,Sr.DirectorApplicationMarketingIndustrial&Medicalatams OSRAMGroup.Photocredits:amsOSRAM.

“Ithinkitfundamentallyinvolvesmaking lightingefficientandintelligent.Soit’snot enough,justoptimizingtheLEDsontheir own.Exploringtheforefrontoflightinginnovation,wedelveintotherealmswhere complexsystemsanddynamicprojectorsfromtheautomotivespaceilluminate ourenvironmentsintransformativeways. Theseinnovationsoffernotjustaesthetic appealbutfunctionaladvantageslikedynamicescaperouteguidance,leveragingablendoflightincentivesfordiverse applicationsincludingsmarthorticulture. Here,advancedLEDsolutionslikethe high-efficiencyOSLONSquareBatwing, augmentedwithspectralsensing,optimize growthconditionsinresponsetonatural lightvariability.Thistechnologyensures thatonlythoseluminairesinshadowactivate,enhancingenergyefficiencyandad-

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dressingthepressingchallengesofrising energycostsandwaterscarcityaffecting industrializednationsglobally.”

“Centraltothisinnovationisthedecentralizationofcontrol,allowingforprecise, situationallightingadjustments.Thisapproach,poweredbysensorsintegrated intoeachluminaireordriver,promisesnot onlyenhancedsystemresponsivenessbut alsosignificantcost-effectiveness.Such decentralizedsystemsareparticularlyrelevantincontrolledhorticulturalenvironments,aimingformaximalyieldthrough tailoredlighting,thusreplacingtheneedfor acentralcontrolunitwithmoreadaptive, localizedmanagement.”

“ThisnarrativeextendstoproducthighlightsliketheOSLONSquareorBatwing LEDs,whichboastuniqueopticseliminatingtheneedforsecondarylensesand significantlyboostingefficiency.Additionally,technologicalcollaborationshaveled tothedevelopmentofcutting-edgesensors,suchasthoseenablingnewwaysto interactwithdevicesthroughopticalforce sensing.Theseinnovationsrepresentthe synergybetweenlightingcontrolandsensortechnology,showcasingthecombined strengthsofcompaniesinenhancingproductofferings.”

“Innovationsrepresentthesynergybetweenlightingcontrol andsensortechnology.”

CLEMENSMÜLLER

“Moreover,theintegrationofcomponents liketheMira050CMOSImageSensorin thermalcamerasillustratestheleapin efficiencyandversatilityinlightingapplications,fromgeneralilluminationtospecializedfieldslikehorticultureandmedical devices.Thisreflectsastrategicfocuson component-levelinnovations,smartintegrations,andpartnershipsthatfosteradvancementsinautomotivelighting,medical applications,andbeyond,includingwearabletechnologiesforvitalsignmonitoring.”

“Thetransitionoftechnologieslikevital signmonitoringfromconsumerwearables tomedical-gradedevicesexemplifiesthe crossoverpotentialandthetransformative impactoftheseinnovationsonhealthcare, offeringmorediscreet,efficient,anduserfriendlysolutionsforcontinuoushealth monitoring.Thisexcitingjourneyintothe futureoflightingandsensortechnology underscoresacommitmenttosmarter, moresustainable,andadaptablesolutions thatmeettheevolvingneedsofawide arrayofapplications.”

WithAxis,ERCOsetsnewstandardsintermsoflightingqualityfordisplaycaselighting.Itreporduces colorswithoutdistortion,highlightsspecialdetailsandsetsimpressiveaccents.Axisshinesthelighton preciousexhibits:Bigmagiconasmallstage. LULLABYisapendantluminairedesignedbyMarcSadler.ThankstoPROLICHT’stechnologiesand materials,LULLABYisamasterpiecethatcombinessoundabsorptionandlighting.
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2D/3DcamerasystemsbasedontheadvancedsensorandemittercomponentsfromamsOSRAMin combinationwiththeSoMproductrangefromTeknique.

KeiHARAGUCHIandTakashi ONISHI,NICHIA www.nichia.co.jp/en/

KeiHARAGUCHI,DeputyGeneralManagerat NichiaCorporation.Photocredits:Nichia.

TakashiONISHI,VicePresidentofNichiaEurope. Photocredits:Nichia.

“AtNichia,wearededicatingourtimeat thisshowcasetounveilthelatestleapsin lightingtechnology,withakeenfocuson enhancingboththeefficiencyandthequalityoflight.Ourteamhasbeenhardatwork topresentinnovationsthatredefinethe standardsoflighting,specificallytargeting threekeyareas:efficacyoflight,qualityof lightandspapeoflight.”

“Oneofourmostnotableadvancements isthedevelopmentofLEDsthatnolonger forceacompromisebetweenhighColor RenderingIndex(CRI)andenergyefficiency.Traditionally,optingforahigherCRI meantacceptingareductioninefficacy, butthankstoourinnovativeH6series,this isnolongerthecase.TheseLEDsareoptimizedtodeliveranimpressivehighCRI of Ra ≥ 90, R9 ≥ 50,and R15 ≥ 85, matchingtheefficacyof80CRILEDs,thus eliminatingtheneedforcompromise.”

“Furthermore,Nichiaispioneeringinthe fieldofcircadianrhythmlighting.Werecognizetheindustry’sshifttowardssupportinghumancircadianrhythmsthrough

lightexposurethatmimicsnaturalsunlight.OurlatestLEDsincludethecrucial 480nanometerspectrum,essentialforactivatingthecircadiansystem,something thatstandardLEDslack.Thisfeatureis especiallybeneficialinthemorningtohelp stimulatewakefulness.”

“Nichia’sH6seriesLEDsoffer highCRIandenergyefficiency withoutcompromise.”

“Inadditiontosupportinggeneralwellbeing,NichiahasdevelopedtheClear WhiteLED,alightingsolutiontailoredto theneedsoftheelderly.Ourresearchhas ledtothecreationofLEDsthatcaterto theagingeye,whichtendstoyellowover time,requiringlightwithaspecificspectrumforclearervision.Ourin-depthtesting hasshownthatelderlyindividualsoverwhelminglypreferthelightingconditions createdbyourspecializedLEDs,noting improvementsinactivitiessuchasreading anddining.”

“Nichiaisalsoleadingthewayinintegratingtheseadvancedlightingsolutionsinto architecturaldesigns.We’renotjustfocusingonthelightitselfbutalsoonhow it’sdelivered.Ourinnovationsallowfor moreflexibleandlessintrusiveinstallation methods,significantlyreducingtheweight oflightingfixturesandoverallinstallation costs.OurnewCubeDirectMountable ChipandNichiaLightClusterTypeLrepresenteco-friendlyLEDtechnologythat allowsforthecreationofsmaller,more efficientluminaires.Thisboostsdesignflexibilityandreducesmaterialuse.”

“Ourapproachtolighting extendsbeyondlm/W.”

TAKASHIONISHI

“Ourapproachtolightingextendsbeyondlumensperwatt.AtNichia,weadvocateforamoreholisticconsideration oflighting—emphasizingtherightshade andintensityoflighttoenhanceoverall efficiencyandtheenvironmentalcompatibilityofourinstallations.Thisperspective iscrucialastheindustrymovestowards moresustainablepractices,reducingenergyconsumptionandminimizingwaste.”

“Nichia’scommitmenttoinnovationisevidentinourcomprehensiveapproachto lighting.Fromenhancingvisualcomfortfor theelderlytopioneeringcircadianrhythm supportandsustainableinstallationtech-

niques,we’resettingnewindustrystandards.Lookingforward,Nichiaenvisions afuturewherelightingsolutionsarenot justmoreefficientbutalsomoreattuned tohumanneedsandenvironmentalsustainability,markinganeweraoflighting technologythatpromisestotransformour experienceoflight.”

DanielHAN,YUJILEDS www.yujiintl.com

DanielHAN,VP&Co-founderofYUJILEDS (right).Photocredits:YujiGroup.

“Ouraimistomanifestourphilosophyand theconceptofwellnessthroughinnovative lightingtechnologies.Utilizingdiverseapproacheswithineachtechnology,suchas theFlameWarm,Well24,andtheSunWave, westrivetocraftlightingexperiencestailoredforrelaxation,pre-sleeppreparation, focus,anddailyuseacrossbothresidential andcommercialsettings.Thecoreobjectiveistoarticulateouruniqueperspective onwellnesslighting.”

“FlameWarm™

offersanM/P

ratioof0.099;significantly lowerthanacandle.”
DANIELHAN

“Addressingtheinquiryregardingkey trendsinlightingfromabroaderperspective,Iamoftheviewthatfutureadvancementsshouldincreasinglycenteronthe well-beingofthehumanbody.Historically, theemphasishaslargelybeenplacedon efficiencyandenergysavings–aspects undeniablycritical.However,aswetransitionintoaneweraoflightingtechnology,it becomesimperativetoprioritizethehealth implicationsoflightingonthehumanbody moresignificantly.Wearewitnessinga surgeinsmartlightingandcontrolsystems designedtoenhancehumanwellness. Therefore,itismybeliefthatfocusingon theintersectionoflightingtechnologyand humanhealthwillemergeasadominant trendintheforeseeablefuture.Indeed,this directionholdsgreatpromiseforthefuture oflighting.”

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MartinHUBER,Amrax amrax.ai

“TheLight&BuildingeventinFrankfurtis anamazingopportunitytoseethebreadth ofinnovationtakingplaceinthelightingindustry.ForAmrax,wewereabletoshowcasehowourappcanenableuserstofully optimizetheirlightingplanstocreatedesignsthatarenotonlymuchmorecosteffectiveandsustainablebutalsoinnovative andaestheticallypleasing.Followingour recentpartnershipwithRelux,designers cannowexport3DscandatafromAmrax’s MetaroomStudioopendirectlytoRelux’s lightplanningsoftware.Thisenablesafast creationofpreciseanddetailedlightand sensorplansforeachroom.Userscan seamlesslyintegratetrue-to-scale3Dmodelsofroomsorentirebuildings,including detailedinformationonmeasurements, dominantcolorsandfurnitureintoRelux’s lightplanningsoftware.Hundredsofpeoplevisitedourstandtoexperiencethis solutionandwesawanunprecedented surgeindownloadsfromacrosstheworld.”

“Now,designerscanexport 3DscandatafromAmrax’s MetaroomStudiodirectlyto Relux’slightplanningsoftware.”

MARTINHUBER

“Withmorethan2,000exhibitorsand 150,000visitors,theLight&Buildingevent providedahugeamountofinsightintomajortrendsthatwilltransformthelighting industryoverthenextfewyears.Itisn’t asurprisetolearnthatAIwastoponthe mindsofpeople-it’salreadybeingused inarangeofsolutionsfrom3Dmapping tosmartlighting-buttherewasplentyof debateonwhatmightbenext-particularly regardingrealtimemonitoringand

Nichia’sCubeDirectMountableChip(shownright),comparedtoaconventionalLED(shownleft),is characterizedbyitsultra-widelightdistribution. YUJILEDS’SERENITYLamp–Designedwithwell-beinginmind,thelamppromotesrelaxation,focus,and bettersleep,effortlessly.BasedontheFlameWarmLEDTechnologyfromYUJILEDS.
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METAROOMbyAmrax.Theworld’sfirstmulti-roomscanning.IdealforAECindustry,BIM,facility managementandWiFiNetworkplanning.Itenhancesaccuracyandproductivityinyourspatialplanning projects. MartinHUBER,CEOundCo-FounderofAmrax. Photocredits:Amrax.

coordinationoftheinternalenvironmentof buildings.”

“Whatwasveryencouragingtoseeisthat sustainabilityandenergyefficiencywasone ofthemajorthemes.Therewerereusable andrecycledsolutionsandmostexhibitors talkedabouthowtheirproductsprioritized enhancingenergyefficiency.Oneofthe mostnotableinnovationsonshowwasthe thinnercomponentsusedinlightinghardware.Thisopensthedoortoevenmore designoptionsandcleverlightingsolutions.Ifyouputallofthesemajortrends together-AI,3Ddesignsoftware,smaller devices,andthesustainabilitydrive,you canseehowweexperiencelightingin buildingsisgoingtochange.Forexample,wewillmovefrommostofficesdominatedbytrofferlightingtoahostofdifferentsystemsthatinterconnectandtakeinto accountinrealtimehowaspaceisbeing usedtomaximizeefficiency.”

DaveJACOBSEN,LAMBDARESEARCH lambdares.com

DaveJACOBSEN,DirectorofSalesandApplicationEngineeringatLambdaResearch.Photo credits:LambdaResearch.

“Wearewitnessinganincreasinginterest intheexplorationofdiffractivesurfaces forilluminationapplications.Innovations suchasholographicopticalelements, computer-generatedholograms,zeroorderdiffractivephasesurfaces,andnow, metallicsurfaces,arebeingconsidered fortheirpotential.Theaspirationbehind theseadvancementsistoaffordlighting designersandopticalengineersenhanced controloverlightdistribution.Thegoalis toachievethisthroughopticsthatarenot onlysmallerandmoreadaptablebutalso moreeconomicallyfeasibletoproduce. Thisdirectionaimstobroadenthescope ofpossibilitieswhilestreamliningdesign processestoachievecompactnessand efficiency.”

“Lightingdesignersseek enhancedcontroloverlight distribution.”

DAVEJACOBSEN

“Lookingforward,weanticipatethistrend tosignificantlyshapethefutureoflighting andopticaldesign.Accordingly,weare directingoursoftwaredevelopmentefforts tosupportandenhancetheseinnovative features,aimingtomeettheevolvingneeds oftheindustry.”

JessicavanHECK,PHABULOuS phabulous.eu

JessicavanHECK,COOofPHABULOuSPhoto credits:Phabulous.

“PHABULOuSspecializesinproducing free-formmicro-opticalcomponentstoenhancelightformingefficiencyandoptimize compactness.Thebenefitsoffree-form micro-opticsinlightingtechnologyinclude improvedefficiency,colormixing,customizablelightdirection,andgloballighting uniformity—allwhileprioritizingcompactness.WearethrilledtobepresentatLight andBuilding,showcasingourdemonstratorsthatutilizefreeformmicroopticsin bothluxuryautomotiveandgenerallightingapplications.It’shighlyencouragingto receivefeedbackandobservethegrowing interestamongcompaniesinadoptingmicroopticsasaninnovativesolution.This technologyenablesthecreationofdistinctivefeaturesandspecializedlightdirection forluxuryapplications.Weareeagerlyanticipatingamoreactiveengagementinthis market.”

“Thebenefitsoffree-form micro-opticsinlightingtechnologyincludeimproved efficiency,colormixing,customizablelightdirection.”

JESSICAVANHECK

“ThePHABULOuSPilotLinemadeitsdebutatLightandBuilding,andwewere pleasantlysurprisedbythewarmreceptionofourservices.Throughouttheweek, thestandoutattractionatourboothwas undoubtedlythesparklingandbeautiful demonstratorfromSwarovski.Free-form micro-opticshavevariousapplications, andwereceivedrequestsfromarangeof companies,includingproducersoflight

signsforretailandmanufacturersofdownlightLEDsseekingopticssmallerthan10 mm(whichisevenlargeforus!)orreading lightsforaerospaceenvironments.Now, weneedtostudyifourtechnologycan meettheirrequirements.”

Summary

AttheLight+BuildingshowinFrankfurt 2024,industryleadersfromacrossthe globecametogethertoshowcaseaseriesofinnovationsthatsignifyasignificant shifttowardssustainability,digitalization, andhuman-centricdesigninthelighting andbuildingtechnologysectors.Theevent wasameltingpotofideas,withaclear emphasisontheintegrationofsmarttechnologies,theadvancementofsustainable materialsandpractices,andtheenhancementoflightqualityandcontrolforboth efficiencyanduserwell-being.

Acentralthemewasthepioneeringuse ofsustainableandcirculardesignprinciples,evidencedbyaward-winningexhibitionconceptsthatcombinedarchitectural lightnesswithenvironmentalresponsibility. Theseconceptswerenotonlyaboutreducingthecarbonfootprintbutalsoabout showcasingthepotentialforreuseand recyclingintheconstructionofexhibition spaces.InnovationsinLEDtechnology, whichnolongerforceacompromisebetweenhighColorRenderingIndex(CRI) andenergyefficiency,werehighlighted, markingasignificantadvancementinlightingdesignthatmeetsbothaestheticand environmentalstandards.

Theintroductionofacousticlightingsolutionsreflectedagrowingtrendtowards creatingmorecomfortableandproductive environments,particularlyinopenoffice spaces.This,coupledwiththedebutof newIoTbrandsandsystems,underscored asignificantpushtowardsoptimizinglightingsystemsforenergyefficiencythrough smart,sensor-supportedsolutions.The discussionaroundIoTandcloud-based connectivityfurtherindicatedamovetowardsmoreintegrated,intelligentbuilding managementsystemscapableofcontributingtothedecarbonizationofbuildings.

Moreover,theeventspotlightedtheimportanceofflexible,modularlightingsystems thatcatertochangingworkenvironments, withdesignsthatprioritizeuserfriendliness, individualcustomization,anddurability. Thecommitmenttosustainabilitywasalso evidentindiscussionsonprecisionoptics andtheuseoflighttosupporthumancir-

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cadianrhythms,withinnovationsdesigned toenhancewell-beingandvisualcomfort acrossvariousagegroups.

Theshowwasnotjustaboutpresenting newproductsbutalsoaboutenvisaging thefutureoflightingandbuildingenvironments.Thedrivetowardsminiaturization, evidentinthedevelopmentofsleek,lowvoltagelightingsolutions,andtheintegrationofadvancedcontrolsystemslike Matter,showcasedafuturewherelighting isnotonlymoreefficientanddiscreetbut alsomoreresponsivetohumanneedsand environmentalimperatives.

Inessence,theLight+Buildingshowin Frankfurt2024paintedapictureofanindustryattheforefrontoftechnologicaland sustainableinnovation.Itshowcaseda collectivevisionforafuturewherelighting andbuildingtechnologiesnotonlyenhance thequalityofhumanlifebutdosowithan acuteawarenessoftheirenvironmental impact,pavingthewayforamoresustainable,efficient,andhuman-centered approachtolightingandbuildingdesign.

“Aspecialthankyoutoallthe companiesandtheirrepresentativesfortheirvaluabletime andinsightfulinterviews.”

LEDPROFESSIONAL

ZumtobelGroupandDr.AlfredFelder, CEO;TRILUXandHubertusVolmert,CEO; ERCOandDipl.-Ing.(FH)BenjaminHeine, Marketing&ProductManagement-Group ManagerContent;PROLICHTandFilippo Bettinzoli,HeadofMarketing&Product Management;amsOSRAMandDr.-Ing. ClemensMüller,Sr.DirectorApplication MarketingIndustrial&Medical;NICHIA withKeiHaraguchi,SeniorLightingConsultantandDeputyGeneralManager,and TakashiOnishi,VicePresidentofNichia Europe;YUJILEDSandDanielHan,VP& Co-founder;AmraxandMartinHuber,CEO andCo-Founder;LambdaResearchand DaveJacobsen,DirectorofSalesandApplicationEngineering;PHABULOuSand JessicavanHeck,COO.

Theirexpertiseandinnovationsaredriving thefutureofourbuiltenvironmentstowards moresustainable,efficient,andhumancentricdesigns.Thankyouforsharing yourvisionsandadvancementswiththe community.

TraceProfromLambdaResearchcombinesMonteCarloraytracing,analysis,CADimport/export,and optimizationmethodswithacompleteandrobustmacrolanguagetosolveawidevarietyofproblemsin illuminationdesignandopticalanalysis.
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Throughouttheweek,thestandoutattractionatthePHABOLOuSboothwasundoubtedlythesparkling andbeautifuldemonstratorfromSwarovski.

FromAlarmingFiguresonLighting Non-compliancetoConstructive Solutions

LightingEurope,ElenaSCARONI

LightingEuropereturnedtoLight+ Buildingin2024,hostinganeventtitled’FromtheEUGreenDealtothe LightingEuropeStrategy2030’atthe fairinFrankfurtonMarch5th.The mainfocusoftheevent,withapproximately100attendees,wastheenforcementofsustainabilityregulations relevanttolightingproducts.Italso markedthefrstpublicunveilingof LightingEurope’snew2030Strategy anditsrecommendationsfortheupcomingEUInstitutions’mandatefrom 2024to2029.

LightingEurope’sStrategy Towards2030

InitsnewStrategy2030,finalizedatthe endof2023andpublishedinearlyFebruaryonourwebsite [1],LightingEuropeis tobecometheplatformwherethewhole lightingindustrycanspeakwithonevoice, cooperate,andadvocatethevalueofsustainableandbetterlightingacrossthe wholevaluechainandwithend-users.

LightingEuropehasagreedonfourkey objectivestoimplementitsnewvisionand mission.Thenewobjectiveswillmakesure thatin2030lightingisakeyelementin newandrenovationconstructionprojects, thatthelightingindustrycanbesupported bygoodrulesthatarewellimplemented.

Initsnewmission,LightingEuropewillintegrateitstraditionalrolesupportingpolicy makersinshapingrulesandpolicieson lightingwiththenewkeyobjectives.

LightingEurope’sPolitical Manifesto

2024istheyearoftheEuropeanelections, withnewpoliticaldecision-makersanda newpoliticalprogramtobeputinplace bythenewEuropeanCommission,anew EuropeanParliament,andnewleadership fromtheMemberStatesattheEuropean Councillevel.ThisiswhyLightingEurope ispublishingaPoliticalManifesto [2] containingourdemandstopoliticaldecisionmakers.

TheEnforcementofEU Rules

Theeventshowcasedthefindingsofthe EEPLIANT3project,thelatestEU-wide effortonmarketsurveillance.RonaldPiers deRaveschoot,PolicyOfficerattheEuropeanCommissionexplainedthatEEPLIANT3employsarisk-basedstrategy,conductingvariouschecksonproductslike lightingtoenforceEUenergylabellingand ecodesignregulations.

Theresultsforlightingproductsareconcerning,withhighratesofnon-compliance acrossdifferentchecks:98%(187outof 191)ofthetargetedmodelsfailedthedocumentarycheck,96%ofthemodels(239 outof249)checkedin83onlineshops weremissinginformationrequirements(label,PIS...)and68%ofthemodels(54out of80)failedtheproducttests.

LightingEuropealsoconductedcompliance monitoring.InthelatesteditionofourMysteryShopperExercise [3],boththeGLS lampsandthedesktopluminairesperformedpoorly.71%ofproductschecked onlinewerenotcompliantand95%of productsdeliveredandphysicallychecked werenotcompliant.

Thesefindingshighlighttheeaseofpurchasingnon-compliantlightingonline, underscoringtheneedforEU-wideenforcementmechanismstoensureproduct compliance.EUlegislationmustensure thatthereisalwaysaliableeconomicoperatorintheEUforproductcompliance.In ourmanifestofortheupcomingmandate 2024-2029,LightingEuropeisaskingfor there-openingoftheDigitalServicesActto addressthisissue.

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ElenaSCARONI,SecretaryGeneralofLighting Europe.
[1] LightingEurope’sStrategy2023 [2] LightingEurope’sPoliticalManifesto [3] MysteryShopperExercise

Inapaneldebate,LightingEuropeasked apanelofexpertshowtobetterenforce rulesonsustainableproducts.

OurpanelwasmadeupofHolgerDickert(ResponsibleforMarketSurveillanceof ecodesignproductsintheHessenState inGermany),RonaldPiersdeRaveschoot (OfficerattheEuropeanCommission–Dg Energy),TanguyGriffon(VicePresident inchargeofSustainabilityatSonepar), SylviaMaurer(BEUC-TheEuropeanConsumerOrganisation),MariekeHoffmann (DeutscheUmwelthilfe,aGermanEnvironmentalNGO),MarcGuiraud(EucoLight), KevanShaw(InternationalAssociationof LightingDesigners(IALD),TeresaSelvaggio andAlfredoMenghini(fromLightingEurope).

Bothshort-termandlong-termsolutions havebeenproposed,forexample:

• Torequireonlineplatformstocheckthat companiessellingontheirplatformare registeredforWEEEandhavearepresentativeinanEUcountry(followingthe GermanWEEElaw).

• Tomakeonlineplatformsliablefornoncompliantproductsifthereisnoliable actor(basedonexistingFrenchlaw).

• Toraisepublicandpoliticalconcern, highlightingthatnon-compliantproductscanalsobedangerousorfailto contributetoclimateandenvironmental objectives,thusharmingtheoveralleffortsofallactors.Highercontributions toCO2 objectivesshouldinsteadberewarded.

• TocontinueeffortsineducatingthemarketviaFAQsandGuidelinesfollowing theworkbeingdonebytheEuropean CommissionandbyLightingEurope.

• Toensureagreatercooperationbetweensurveillanceandcustomsauthorities,sharingdataandcoordinating sanctions.

SmartLightingSystems

PaoloBertoldifromtheEuropeanCommission’sJointResearchCentreoffered insightsintoongoingresearchonsmart lightingsystems.Heestimatedasubstantialriseindemandforlightingservicesover thenext15years,leadingtoasignificant expansionofthesmartlightingmarket. Bertoldiunderscoredtheimperativeof transitioningtosmartlightingapplications toeffectivelyreduceenergyconsumption andassociatedgreenhousegasemissions inthelightingsector.Keydriversofthis transitionincludethenecessityforenergyefficientlightingsolutionsandthegrowing adoptionofhuman-centriclighting.Smart

lightingispoisedtoplayacentralrolein theintegrationofIoTtechnologiesandthe developmentofsmartcitiesandbuildings.

TheEngagementof LightingEuropeinthe HarmonizationofPSRRules forLightingProducts

TheeventatLightandBuildingwasthe opportunitytoinformtheindustryofthe engagementofLightingEuropetowards harmonizationofProductSpecificRulesfor lightingproducts.

AfurthersignificantsteptowardsstrengtheningtheenvironmentalprofileofthelightingindustrywastakenwiththesuccessfulrevisionoftheProductSpecificRules

(PSR)forLuminaires.LightingEuropeand itsmembersplayedacrucialpartindrivingthisrevisionthatnotonlyrespondsto theincreasingdemandforquantifiableand comparableenvironmentalperformance oflightingproducts,butalsorespondsto thenatureandmarketcircumstancesof thelightingindustry.Thenextstepwillbe thetranspositionoftheserulesintointernationalstandardswhichwillfurthersupport thecomprehensiveandtransparentdeliveryofinformationonthelifecycleofluminairesbenefitingmanufacturers,regulators, andcustomers.

Resultsofthesecondmysteryshopperexerciseperformedin2023.
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LightingEuropeeventtiteled’FromEUGreenDealtotheLightingEuropeStrategy2020’atLight+Building 2024inFrankfurt.

ZumtobelandPininfarina:Lighting TechnologyPioneerPartnersup withDesignExperttoShapethe FutureofLighting

Zumtobel

Light+Building2024wasagreatsuccessforZumtobel:Notonlydidthe lightingspecialistachieveaGuinness WorldRecordstitleforthelargestcontinuousilluminatedceiling,butthe companyalsoannouncedapartnershipwithPininfarina,abrandrecognizedallovertheworldfortheirdesign expertise.Together,theintegrated lightingsolutionsproviderandtheItaliandesignstudiowillexpandtheportfolioofZumtobel’ssuccessfulTECTON continuous-rowlightingsystem,with thelaunchofTECTONIIannouncedfor thefrstquarterof2025.

ZumtobelandPininfarinaarebothwellestablishedcompaniessynonymouswith highstandardsofqualityanddesign,as wellasinnovationandprogress.Founded onsharedvaluesandcombinedexpertiseindesign,architecture,industryand technology,thecollaborationisfocused onexpandingandupgradingtheTECTON continuous-rowlightingsystem,helping thepartnerstomeetfuturelightingrequirementsandtorespondtochanging customerneedsintermsofflexibility,user experienceanddesign.

TECTON–ABenchmarkfor MorethanTwoDecades

Forover20years,themodularTECTON [1] productfamilyhasbeenmakingbuildingsofallkindsshineintop-qualitylight. Theuniversaltrunkingsystemincorporates lighting,controlsandemergency/safety lighting.Tool-freeinstallationisalsoakey factorintheTECTONsystem’ssuccess. Elevenportsallowforconnectingarange ofdifferentluminairetypes,emergency lighting,sensors,andotherIoTcomponents.Zumtobel’sinnovativeconceptand accompanyingdigitalservicesserveasthe foundationofasmartbuildingstructure andofferhugepotentialfordigitalapplicationsinthefuture.

TheNextEvolutionof TECTON

WhilethefirstgenerationoftheTECTON continuous-rowlightingsystemwasdevelopedmorethan20yearsago,itfeatures state-of-the-arttechnologytoday.Overthe lasttwodecades,Zumtobelhascontinu-

allymodernizedTECTONandequippedit withthelatesttechnologies.Nowthenew generationofTECTONisreadytogo,with Zumtobelbringingprestigiousdesignfirm Pininfarinaonboard.

“AswelaunchthenextgenerationofTECTON,wewanttocontinueofferingplanners,architects,installers,retailersandend customersindustry-leadinglightingsolutionsthatareperfectlyequippedtomeet therequirementsofthefuture,”explains AndreasFussenegger,DirectorofProductManagementatZumtobel.TECTONII considersusers’needandincreaseddesire formoreflexible,user-friendly,andintuitive products,individualcustomization,modern design,improvedsustainabilityandincreaseddurability.Fusseneggeradds:“All thelightingcomponentsofthenewgenerationwillbebackward-compatible.The TECTONprojectsareandwillalwaysbe future-proof.Ourexpandedrangecanbe usedtoupgradeexistinglightingsolutions withthelatesttechnologyatanytime.”

ZumtobelandPininfarina: ALuminousMatch

TofindasuitablepartnerforthedevelopmentofTECTONII,Zumtobeladhered toclearlydefinedcriteria.FortheexpansionoftheTECTONportfolio,Zumtobel waslookingforapartnerwhosharestheir brandvaluesofinnovationleadership,quality,anddesignrequirements.Thecompany alsoneededtocoverdifferentspecialistdisciplines,approachtheprojectfrom aneutraloutside-inperspective,andto demonstratewaysandmeansofoptimizingtheuserexperience.

www.zumtobel.com

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“InPininfarina,wehavegainedapartnerwhofulfillsalloftheserequirements perfectly.Theprestigiousdesignfirmimpressedusacrosstheboard,particularly withitsforward-lookingapproachtouser experience,”saysAlfredFelder,CEOofthe ZumtobelGroup.“Ourcollaborationwith Pininfarinaalignsextremelywellwiththe valuesandlong-termvisionoftheZumtobelbrand.”Amajoradvantageofthe collaborationisthatPininfarinahasanextensive,diversepoolofexperiencedarchitectsandproductdesignspecialistsatits disposal.

“Developthebestintosomethingbetter.”
SILVIOANGORI,CEOOFPININFARINAGROUP

Pininfarinaisabrandnamethatevokes emotion,especiallyincarenthusiastssince thecompanyinitiallymadeanameforitselfintheautomotiveindustrythanksto cleardesignlanguagewithhighlevelsof brandrecognition.“Wearenowbringing ourideasandconceptstolightingandarchitecture.PartneringwithZumtobelallows ustohelpshapethefutureoflighting,generateinnovationanddevelopthebestinto somethingbetter,”saysSilvioAngori,CEO ofPininfarinaGroup.“Welookforwardto continuingourcollaborationwithZumtobel, whichhasgottenofftoaconstructiveand smoothstart.”

OnethingPininfarinaandZumtobeldefinitelyagreeon:thelightingproductsmust besophisticatedandtimeless–andremain discreetlyinthebackground.“Wewant lightingthatdoesn’tpolarizeopinion,isn’t afadandwon’tloseitsimpact,evenafter fiveyears,”saysAndreasFussenegger.

References

[1] TECTON. https://z.lighting/de/zumtobel/produkte/te cton

ThomasÖlz,VPBrand&ApplicationatZumtobel;SilvioAngori,CEOPininfarinaGroup;AlfredFelder,CEO ZumtobelGroupatLight+Building2024,announcingthepartnershipbetweenZumtobelandPininfarina (lefttoright).Photocredits:AndrzejSiegmund.
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ThomasÖlz,VPBrand&ApplicationatZumtobel;SilvioAngori,CEOPininfarinaGroup;AlfredFelder,CEO ZumtobelGroup(lefttoright).Photocredits:AndrzejSiegmund. Tocelebratethepartnership,Pininfarinaexhibitedtheirhydrogen-fueledracingcarPininfarinaH2Speed. Photocredits:AndrzejSiegmund.

Thisphoto,aswellasthecoverofthisissuefeaturethe GalleryXavierHufkens,inBrussels.Photos:ThomasMayer, Neuss/Germany.ERCOproducts:EclipseinTrack,Jilly. (c)ERCOGmbH.www.erco.com

Free-formMicro-Opticsin AutomotiveApplications

Theautomotiveindustryisconstantly evolving,andnewdevelopmentsin lightsourceshavesparkedanumberoftrendsthatarechangingthe lookandfeelofvehicles.Fromnarrow bandsoflighttohomogeneousluminoussurfaces,automakersnowhave arangeofstylingoptionsavailableto givetheirvehiclesanelegantandsophisticatedaesthetic.Inthisarticle, wewilllookatoneopticaltechnology forrealizingsuchtrendsinautomotive lightingtechnology:free-formmicrooptics.

CurrentStandard:Free-form

Macro-opticsinAutomotive LightingSystems

Classicfree-formmacro-opticshavebeen usedinautomotivelightingformanyyears. Inadditiontofree-formreflectors,typical applicationsincludetotalinternalreflection(TIR)opticsandimagingopticsusedin headlampsystems,asshownin Figure 1. Regardlessofthefieldofapplicationor thespecificshapeoftheoptics,free-form macro-opticshavetheadvantagethatthey canbemanufacturedwithtypicalprocess standardsforautomotiveopticsmanufacturing,i.e.,injectionmolding.Buttheyalso haveadecisivedisadvantageinthatthey aremacro.Intermsofstyling,thismeans thattheopticalelementsthemselvesas wellasthefree-formmacro-structureson surfacesarevisibleevenfromagreatdistance.Thisisnolongercompatiblewith currentstylingtrends,whichfocusonthe visualintegrationofopticalsystemsinto thevehiclebodyorcompletelyhidingthem fromview.

PotentialFieldsof

ApplicationforFree-form Micro-opticsinAutomotive Applications

Theadvantageofmicro-opticsisthatthey notonlyofferthepossibilityofreducingthe dimensionsoftheoptics,buttheycanalso optimizetheopticallyeffectivesurfaces withregardtothevisibilityofcurvaturesor structures.Free-formmicro-opticsthus combinethedesignfreedomoffree-form opticsandtheadvantagesofmicro-optics, andtheresultingpotentialforvariousapplicationfieldsisenormous.

Asregardsautomotive,atopfieldofapplicationforfree-formmicro-opticsistheir useasdiffuseropticstocreatehomogeneousluminoussurfacesandinrecent years,FORVIAHELLAhasdevelopedtheir FlatLightfamilyoftechnologiestorealize

suchluminoussurfaceswithparticularly lowinstallationspace(Figure 2).

TheFlatLightfamilyincludestheFlatLight|µMXconsistingofalightguidewith multipleopticallayers.Theseopticallayersusedifferentfreeformmicro-optics anddiffusoropticstorealizeanimpressive homogeneityincombinationwithgreatefficiency.Withthisapproachtherequired installationspaceisreducedbyupto90%, tojust5mmandcomparedtoconventionalLEDtaillightsFlatLight|µMXrequires upto80%lessenergywhilemaintaining thesameperformanceandhomogeneity. Forthisimpressivetechnology,FORVIA HELLArecentlyreceivedtheCES2024 InnovationAwardinthecategory“Vehicle Tech&AdvancedMobility”.Butthereare manyotherapplicationsinwhichfree-form micro-opticscanenablenewdevelopments,suchassensors,displays,beam shaping,compensationofcoloraberrationandprojectionoptics.Thereason whyfree-formmicro-opticsarenotalready widelyusedinautomobilesisduetothe variousrequirementsplacedonoptical componentsintheautomotiveenvironment.Theseincludehighopticalsurface quality;costeffectivemasteringandseries productioncomparabletoinjectionmolding;andtheneedforautomotivecertified materialsthatcanwithstandautomotive environmentalconditions.Additionally,2D, 2.5Dand3Dcurvedsubstratesarerequiredtoenablevisualintegrationofoptics intothecarbodyaswellasthefabrication oflarge-scaleoptics,e.g.,tailorcarbody lamps.Finally,thereistheissueofdata handlingoflarge-scaleopticstosimulate theentirelampsystem,e.g.,forstraylight analysisandtheinterfacefordesignand simulationtoolstoavoiddataerrorsdueto longtoolchains.

https://phabulous.eu/

Whilenotallrequirementshavetobefulfilledforeveryapplication,acombinationof atleastfourofthemarealwaysconsidered whenintegratingfree-formmicro-optics intoanautomotivelightingsystem.The problemhereisthatalthoughthereare enoughcompaniesspecializedinoneor

OPTICS FREE-FORMMICRO-OPTICSINAUTOMOTIVEAPPLICATIONS 36 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024

moreoftherequirements,thechallenge istofindthesecompanies,andthenlink theircompetencestoaprocesschainthat worksforseriesproduction.Thesechallengeslieoutsidethescopeofindividual companies,andthisiswherethePHABULOµSpilot-linecomesintoplay.

PHABULOµSPilotLine

PHABULOµSwassetupin2020bythe EUwiththeaimofcreatingEurope’sfirst pilotlineforthemanufactureoffree-form micro-opticalcomponentsbyUVreplicationtechnologies(wafer-scale,roll-to-plate, androll-to-roll)withaclearroadmapfor highvolumeproductionatcompetitive cost.

Fromtheoutset,FORVIAHELLAhasbeen oneoftheuse-casepartnersandworks togetherwiththepilot-linepartnersonthe developmentofanewfreeformmicroopticssystemforheadlampapplications.

FORVIAHELLA’sideaistousethelight inputsideofthecomponentasprimaryopticsandthelightoutputsideassecondary opticstoshapethelightdistribution.Both highandlowbeamdistributionshavebeen investigatedwithdifferentopticalstructures

aspartoftheproject.Ininitialtesting,a micro-Fresnellenswasusedonthefirst surfaceandafree-formfacetstructure wasusedonthesecondsurface. Figure 3 showsanexampleofafacetstructurefor generatingalowbeamdistribution.

requirements. Figure 4 showsareplica fromNanocomp,whichisnolargerthana onecentcoin,andinthecaseofusingthe R2Rprocess,eventhinner!

Forthefirstfabricationstep,themastering, differentpartnersofthepilot-lineanalyzed thestructuresregardingtheirorigination capabilities.Themasteringofthefacet structurewasachallengingtaskduetothe steepedgesandthedifferentorientations ofthe300µmlargefacetsincombination withtherequiredsurfacequality.FORVIA HELLA’spartnersforthereplicationare SUSSMicroOpticsandNanocomp,who bothprovedthattheirprocessesmeetthe

Eventhoughthereplicasareconvincingin termsoftheiropticalquality,thelightdistributionsgeneratedbydifferenttestedcomponentshavenotyetreachedthestandardsforautomotiveproducts.Thisisdue toacombinationofavailablealgorithmsfor calculatingthefree-frommicro-structures

Figure1: Examplesoffree-formmacro-opticsinheadlamp(left)andrearlamp(right)applications.
OPTICS FREE-FORMMICRO-OPTICSINAUTOMOTIVEAPPLICATIONS 37 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design
Figure2: ImagesoftheHELLAFlatLight|µDO(right)andFlatLight|µMX(left)variants,bothofwhichusefree-formmicro-structures. Figure3: Exampleofafirststatefree-formmicroopticwithafacetstructuretogeneratealow beamdistribution. Figure4: Exampleofadouble-sidedfree-form micro-opticreplicatedbyNanocomp-assmall asoreventhinnerthanaonecentcoin.

andtheapproximationsoftheincoming light.Butthesearegeneralproblemsas theyhavealreadybeenobservedforother micro-andnano-opticsandsothechallengeswillneedtobeaddressedindependentlyfromthePHABULOµSproject.

AlthoughFORVIAHELLA’susecasefor thePHABULOµSprojectisparticularly challengingforautomotivelighting,other applicationswithlessdemandingrequirementsthatdonotneedhardcut-offscould beeasilyimplementedwiththistechnology. Eventhoughtheheadlampusecasestill needsfurtherdevelopments,thepotentialsproofedbysimulationsandFORVIA HELLA’sresultswiththeirFlatLighttechnologyshouldbeenoughtoencourage everyoneworkingwithlightingtechnology toembracefree-formmicro-opticsasthe technologyforthefuture.

Dr.DanielaKARTHAUS

LightingExpert,FORVIAHELLA

DanielaKARTHAUSworksintheInnovationsdepartmentatFORVIAHELLAandis anexpertinlightingtechnologyandoptics. Sheevaluatesnewtechnologiesforautomotivelightingapplications,hasseveral yearsofexperienceinmicro-anddiffractive opticsanddidresearchonholographyfor herPhD.SinceJanuary2020,shehascoordinatedFORVIAHELLA’sactivitiesinthe PHABULOUSprojects.

AboutFORVIAHELLA

FORVIAHELLAisalisted,international automotivesupplier.Weareacompany oftheFORVIAGroup,theworld’sseventh largestsupplierofautomotivetechnologies. Asaglobalmarketleaderinhigh-growth areas,FORVIAemploysover150,000peopleworldwide.FORVIAHELLAtherein standsforhigh-performancelightingtechnologyandautomotiveelectronics.Atthe sametime,wecoverabroadserviceand productportfolioforthesparepartsand workshopbusinessaswellasformanufacturersofspecialvehicleswithourBusiness GroupLifecycleSolutions.

AboutPHABULOuS

PHABULOuSistheone-stop-shopfor free-formmicro-optics,takingdesignsand prototypestolarge-scalemanufacturing. Theyhavelaunchedanopencalltosupporttheindustrywiththeimplementation andintegrationoffree-formmicro-optics, tobringyourproducttovolumemarkets. ThisopencallaimstosupportEurope’s earlyadoptersofourpilotlineservicesto movetowardsvolumeproductionoffreeformmicro-opticalcomponents.Doyou haveadesignand/orprototypeandare lookingtomoveyourdevelopmentintopilotorlarge-scaleproduction?

ThePHABULOuSvaluechainconsistsof Europe’sleadingCompaniesandResearch &TechnologyOrganizationsallowingfor seamlessdevelopmentfromearlyphase proof-of-concepttoregulatedpilotproduction.Dependingonthephaseofthedevelopmentandmarketapplication,atechnical teamandprimecontractorareselected, whowillhelpthecompaniestoverifythe technicalrequirementsandsupportthe companybymakingadesignand/orprototypesuitedforlargescalemanufacturing.

Upto3M€offundingisavailabletosupportaminimumof20pilotcases/early

adopters.Theywillbeselectedwithin theprojecttoimplementfree-formmicroopticalcomponentsandintegratethatinto theirproductdevelopmentswiththeaimto gotowardslarge-scaleproduction.Theexactamountofsubsidiesperapplicantwill bedecidedbaseduponthetypeofcompanyandthethreemainselectioncriteria. Foreachpilotcase,anin-kindcontribution fromapplicantisalsoexpected.

FormoreinformationaboutFORVIAHELLA andPHABULOuSpleasevisit:

https://www.hella.com/en

https://phabulous.eu/

FREE-FORMMICRO-OPTICSINAUTOMOTIVEAPPLICATIONS 38 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
Figure5: Simulatedlightdistributionsofafree-formstructuretogeneratealowbeamdistribution.Left:idealillumination,right:illuminationwithastandard automotiveLED+classicprimaryoptics.
OPTICS
Join the Lighting Design Community Subscribe to the monthly Trends in Lighting Newsletter Stay up-to-date www.trends.lighting

HorticultureLEDstoBoostVertical FarmingEfficiency

Withthegrowingworldpopulation andglobalwarming,arablelandand freshwaterarebecomingincreasingly scarce [1].Manynewapproacheswill beneededinagriculture.Oneofthese isControlledEnvironmentalAgriculture(CEA).WürthElektronikoffers HorticultureLEDsandpromotesthe useofplant-andgrowth-specifclight recipes.Engineersatthecompany havethoughtabouthowthecontrolof aCEAcouldberealizedasanIoTapplication.

OneoftheControlledEnvironmentalAgriculturesolutionsisindoorverticalfarming. In“verticalfarms”,fresh,nutritiousfood canbegrownlocallyforpeople,e.g.,in urbanareas.Thismethodofgrowingis alsopossibleinregionsoftheworldwhere conventionalagriculturewouldnotwork.It supportstraditionalagricultureanddoes notcompetewithit.Verticalfarmsare multi-leveldigitizedgreenhousesthatcan onlybesuccessfulifseveralkeytechnologieslikelighting,controlandmonitoringare mastered.WürthElektronikoffersawide rangeof“horticultureLEDs” [2] whose colorspectrumisideallymatchedtoplant requirements.Italsoconductsitsownresearchinthisareatofurtherestablishsuitabledynamiclightingrecipesforthemarket [3].AsamplekitwithhorticultureLEDs andwirelessconnectionexiststocreate optimallightingconditionsandkeepenergy consumptionlowwithintelligentlighting controlandoptimizedpowersupply [4,5] MoreabouthorticultureLEDsandtheirapplicationcanalsobefoundin [6] to [11] Besidesoptimallightconditions,otherenvironmentalfactorsarealsoimportantfor plantgrowthincludingtemperature,humidityoreventhesoilmoisture.These parametersmustbemonitored,controlled, anddynamicallyoptimized.

AnIoTControlledVertical FarmPrototype

Anetworkofsensorsandactuatorsthat areneededfortheInternetofThingsfor complexautomation,suchasthesmart factoryofIndustry4.0,smartbuildings, orevennewagriculturalconcepts.The followingshowshowtheuseofhorticulture LEDsandtheimplementationofremote monitoringandcontrolforplantgrowthin verticalfarmscanberealizedquicklyand cost-effectivelyusingrapidprototyping tools. Figure 1 showstheprototypeofan indoorfarmingbox.

Allcriticalcomponentsoftheprototyping solutionareavailablefromasinglesource, fromWürthElektronik.Thecoretaskof anyIoTsolutionistotransferdatafrom thefieldtothecloud,whereitisanalyzed togeneratethedesiredaddedvaluefor theapplication.Anopen-sourcehardware andsoftwareecosystemwasusedanda completeIoTsolutionwascreatedforthis application.Tothisend,WürthElektronik hascombinedAdafruit’sFeatherM0ExpressboardwithitsownFeatherWings, i.e.,theFeatherform-factordevelopment boardswithvarioussensors,radioand powermodules,LEDsandLEDdrivers andcomponents(Figure 2).Herethebasicideaistocreateadigitalsystemthat

optimizesgrowth,ontheonehand,and electricityandwaterconsumption,onthe other.

WaterandLight

Theverticalfarmingprototypeisbasedon asoilsubstratecombinedwitha4-channel LEDdriverandahorticultureLEDdesign kitthatmakesiteasytomixtherequired lightspectratopromoteplantgrowthunderdifferentlightingsituations.Thedripirrigationsystemandwatertankuserecycled waterwhosepHandelectricalconductivity (EC)(salinity)aremeasured,controlled,and transmittedtothecloudthroughwireless connectivitymodulesfromWürthElektronik.Asoilmoisturesensormonitorssoil moistureandasmallpumpsupplieswater tothesystem,ifrequired.Theexcesswateriscollected,filtered,andreturnedtothe tank.TheheartofthesystemisAdafruit’s FeatherM0Expressboardwithrelaysused asswitches.Dataissenttothecloud, wheretheinformationisprocessed,analyzed,andusedtocontrolthefarm.

LEDPanel

Thelightingsystem(Figure 3)consistsof ahorticultureLEDpanelwithfourseparate channelsincludingspecialsingle-colorhorticultureLEDs,andtheMagI³Cmulti-color LEDdriver.BothareincludedintheLightingDevelopmentKitfromWürthElektronik [2].TheLEDdriverwiththeMagI³Cseries step-downpowermoduleallowsindividualadjustmentoftheintensityandcolor ofeachofthefourLEDstrandstomeet theapplicationrequirementsandmatch thelightrecipestotheplantprofile.The horticulturepanelconsistsofsixhyper-red (660 nm),fourfar-red(730 nm),twodeep blue(450 nm)andfourwhiteceramicLEDs. ThesystemcanbecontrolledviaBluetooth,Wi-Fioracell-phoneconnection.

Watering

TheveryaccurateMEMSpiezoresistive WSEN-PDUSdifferentialpressuresensormeasuresthewatertankfillinglevel (Figure 4).

HORTICULTURE IOTUSECASEGREENHOUSE 40 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
Figure1: Prototypeofanindoorfarmingbox. Source:WürthElektronikeiSos.

Inaddition,a12Vpumpmovesthenutrientrichwaterintothedriptrayviaaflowsensor.Waterqualityismonitoredwiththe DFR-05874(pH)andDFR-0300(EC)metersfromtheDFRobotGravityseries.Most naturalbodiesofwaterhaveapHvalue between5and8.Thegenerallyaccepted pHforirrigationwaterisbetween5.5and 7.5,butthebestresultswereachieved withpHvaluesbetween5.5and7.Water inthispHrangemaintainsitsnutrientbalance,provideseffectivechemicaldisinfection,andpreventscalcificationinirrigation systems [12]

“Fertigation”isablendwordoffertilizationandirrigation.Asaresultofthesmall substratesurfacearea,growinginsubstratesrequiresgoodirrigationandalot offertilizer,whichisaddedtotheirrigation water.AnECmeterisusedtodetectan undersupplyoroversupplyoffertilizersin theirrigationwater.Electricalconductivity (EC)isameasureoftheconcentrationof ionsinwaterandservestomeasurethe abilityofwatertoconductelectricity.The purerthewater,thelowertheconductivity. ThecapacitiveSTEMMAsoilsensorfrom Adafruitwasusedtomeasuresoilmoisture.Capacitivemeasurementsuseonly oneprobe;thereisnoexposedmetalthat canoxidize,andnoDCcurrentispassed intoplants.Thepumpiscontrolledautomaticallyanddirectlyviathecloud.Its operatingtimeiscalculatedbasedonthe numberofplants,requiredsoilmoisture, andthepumpflowrate(Figure 5).

FeedingPlants

Carbondioxideisrequiredinlargequantitiesforenrichmentandextractionprocesses.Theseprocessesacceleratethe growthofplantsandCO2 servesasafumigant.Inenrichment,aCO2 contentof 800–1500 ppmisusuallysettoaccelerate growthby20to30%.Increasingover-

Figure2: IoTsystemprototypeforverticalfarmingbasedontheFeatherformfactor.(Source:Würth ElektronikeiSos).
HORTICULTURE IOTUSECASEGREENHOUSE 41 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design
Figure3: Thelightingsystemforplantcultivationconsistsofanarrayofsingle-colorLEDsandanLED driver.(Source:WürthElektronikeiSos). Figure4: TheWSEN-PDUSdifferentialpressure sensorisaveryaccurateMEMSpiezoresistive sensor.Source:WürthElektronikeiSos.
.

allmetabolicratehelpsplantswithstand theeffectsofheat.Larger,healthierand morerobustplantstolerateextremeenvironmentalinfluencesbetter.Anincreased plantmetabolicratemeansadditionalrequirements,however.Theplantsnotonly needmorewaterandnutrients,butalso additionalventilation.TheCO2 contentof thesystemwasmeasuredandmonitored onlineusingtheAdafruitSPG30airquality sensorconnectedtotheWürthElektronik sensorFeatherWing.Itshouldbekeptin mindthatthesensormeasurestheequivalentCO2 content.ThiseCO2 valueiscalculatedbasedonthe H2 concentration, soitisnota“real”CO2 sensorforlaboratoryuse.Aplantrequiresdifferentlightand heatconditionsateachstageofgrowth. Mostplantstoleratenormaltemperature fluctuations,andtheoptimalthermalconditionsforplantgrowthcanvary,notonly betweentherespectivephases,butalso throughouttheday.Optimizationcanbe achievedbymeasuringthetemperature andoptimizingthedailycycles.When thelightisswitchedoff,thetemperature shouldbeafewdegreeslower.Humidity isspecifiedasrelativehumidity.Different plantstagesrequiredifferentlevelsofhumidity.Anoverlyhumidenvironmentcan raisethepotentialforspreadingdisease. BothhumidityandtemperaturearemonitoredwiththeWEsensorFeatherWing.

ConnectionstotheIoT

Howtoconnecttothedigitalworld.Today,therearemanystandardizedand proprietarywirelesssolutions,whoseselectionisdeterminedbyseveralfactors suchastransmissionrange,throughput, frequencybandwidth,localregulatoryrequirementsandenergybudget.Theprototype’scommunicationisimplemented usingtwodifferentapproaches,firstlywith aCalypsoWi-FiFeatherWing(Figure 6) forenvironmentswhereWi-Fiisavailable, andsecondlywithanAdrastea-IFeatherWing(Figure 7)forenvironmentswithout Wi-Fi.Bothboardsareconnectedtothe restofthesystemviatheAdafruitFeather M0Expressboard.TheCalypsoboard isacompactWi-Firadiomodulebased ontheIEEE802.11b/g/n(2 4 GHz)WiFistandard.IthasanintegratedTCP/IP stackandanout-of-the-boxMQTT(MessageQueueTelemetryTransport)protocol. TheAdrastea-ImoduleisacompactLTEM/NB-IoTmobilemodulewithintegrated GNSSandanArmCortex-M4processor suitableforeveryIoTapplication.Both modulesaresuitableforsimpleandsecure connectiontothecloud.Inthiscase,the choicewasmadeforMicrosoftIoTCentral, aPlatformasaService(PaaS),becauseof itssimplicityandeaseofuse.IoTCentral hasaready-to-useuserinterfaceandAPI forconnecting,managingandoperating

Figure5: Irrigationsystemwithsensors,watertank,pumpandcontrolboards.Source:WürthElektronik eiSos. Figure6: TheCalypsoFeatherWingprovidesconnectivityinenvironmentswhereaWiFinetworkis available.Source:WürthElektronikeiSos.
HORTICULTURE IOTUSECASEGREENHOUSE 42 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
Figure7: TheAdrastea-ImoduleisacompactLTE-M/NB-IoTmobilemodulewithintegratedGNSSandan ARMCortex-M4processor.Source:WürthElektronikeiSos.

IoTdevices.Withitstelemetry,features andcommands,ithasbeenusedtomonitorandcontrolallaspectsofthevertical growingsystem.

Summary

HowdoestheIoTconnectedverticalfarmingwork?Theprototypeshowsitona smallscaleandisinitselfanapplication: Asimilarcabinetproducesfreshherbsin theWürthElektronikcanteen.Theelectroniccomponentsoftheprototype,from softwareformicrocontrollercontrol,communicationwiththecloud,tothepower supplyandLEDs,allcomefromasingle source,WürthElektronik.

References

[1] Thefutureoffoodandagriculture:Trendsand challenges,areportbytheFoodandAgriculture OrganizationoftheUnitedNations,2017: https: //www.fao.org/3/a-i6583e.pdf (Accessed:March24, 2018).

[2] WürthElektronikhorticultureLEDs: https://www.we -online.com/en/components/products/led/leds/hortic ulture_leds

[3] Gerfer,A.:Thefutureoffoodproduction!Würth Elektronikasenablerinthefieldofverticalfarming. Video: https://www.youtube.com/watch?v=U_OoyH LR7lQ

[4] Blakey,R.:AdvantagesofLEDLightinginHorticulturalApplications.AppNoteANO003: https: //www.we-online.com/components/media/o128284 v410%20ANO003a%20EN.pdf

[5] WürthElektronikLightingDevelopmentKit: https: //www.we-online.com/en/components/products/LIG HTING_DEVELOPMENT_KIT

[6] GreatScott:”Magical”LEDsletmyplantsgrow faster?(Experiment)TheFutureofFarming!Video: https://www.youtube.com/watch?v=4FryMPpJG6I

[7] Fisch,I.:Andersackern[workingthelanddifferently (articleinGerman)],SüddeutscheZeitungonline,July 29,2022, https://www.sueddeutsche.de/wirtschaft/l andwirtschaft-transformation-innovation-vertical-far ming-smart-farming-indoor-farming-ukrainekrieg-leb ensmittel-wirtschaftsgipfel-salon-1.5630332

[8] Waldherr,J.:Horticulture-LEDsverbesserndas Pflanzenwachstum[HorticultureLEDsimproveplant growth(articleinGerman)].Elektronikpraxisonline, July29,2022, https://www.elektronikpraxis.de/hortic ulture-leds-verbessern-das-pflanzenwachstum-a-5 e046d8b29a99bb1bf6a50234bdabcd7/

[9] Koller,P.:WaseinErdbeerpflückeraufderDLDKonferenzzusuchenhat[Whatastrawberrypicker isdoingattheDLD(DigitalLifeDesign)conference (articleinGerman)].All-electronics.de,January19, 2023, https://www.all-electronics.de/automatisierun g/warum-beim-automatisierten-erdbeerpfluecken-d as-licht-eine-hauptrolle-spielt-186.html

[10] Blakey,R.:LEDs–TheFutureofHorticultural Lighting.AppNoteANO002: https://www.we-online. com/components/media/o120602v410%20AppNote _ANO002_TheFutureHorticultureLightning_EN.pdf

[11] Gerfer,A.;Waldherr,J.;Özgür,H.:LightingControl forFoodProduction.LEDProfessionalMay/June 2023,issue97,p.28, https://www.led-professional. com/downloads/lpr97_full_11819.pdf

[12] Brunton,V.:Irrigationwaterquality. https://www. dpi.nsw.gov.au/__data/assets/pdf_file/0005/43364 3/Irrigation-water-quality.pdf (Accessed:January31, 2023)

AlexanderGERFER,ManagingDirector andChiefTechnologyOffceratWürth ElektronikeiSos

AlexanderGERFERisManagingDirector andChiefTechnologyOfficerofoneofEurope’slargestmanufacturersofelectronic andelectromechanicalcomponents.The graduateengineer(UniversityofApplied Sciences)inElectricalEngineeringand trainedradioandtelevisiontechnicianhas beenwithWürthElektroniksince1997and startedhiscareerclassicallyasatechnical salesrepresentative.Thestartingpointfor today’seiSosGroupproductrangewas hisknowledgeofthemanyunanswered questionssurroundinginductivecomponents,aswellashispracticalexperience inpowermanagement,andtheneedfor standardizedpowerinductorsandsuppressorferrites.Heisinstrumentalinbuildingthecompany’sresearchanddevelopmentaswellasproduct,qualityandsupply chainmanagement.AlexanderGerferisa textbookauthor,lecturerandin-demand keynotespeaker.Withhisexperienceand credo,hehashelpedshapethedevelopmentandorientationofWürthElektronik eiSosasaservice-orientedmanufacturer andpromoteroftechnology.

AdithyaMADANAHALLI,IoTSolution ArchitectatWürthElektronikeiSos

AdithyaMADANAHALLIgraduatedfrom theTechnicalUniversityofMunichwith anMScinCommunicationsEngineering. Hewentontoworkforseveralyearsasa

softwareengineerinthefieldofwireless connectivityandsensors.Since2017, AdithyaMadanahallihasbeenworkingas anIoTengineeratWürthElektronikeiSos intheWirelessConnectivityandSensors businessunit.Hereheisspecializedinthe designanddevelopmentofIoTsolutions withafocusonhardware,embeddedsoftwareandend-to-endsecurity.

JohannWALDHERR,BusinessDevelopmentManagerforHorticultureLEDs atWürthElektronikeiSos

JohannWALDHERRgraduatedfromthe TechnicalUniversityinMunichandHumboldtUniversityinBerlinwithaMSc.in HorticultureScience.Hethenworkedfor severalyearsasaplantresearcher,witha focusonhowdifferentwavelengthsofthe lightinfluencedifferentqualityparameters oftheplant.Since2017,Johannhasbeen aBusinessDevelopmentManagerforHorticultureLEDsatWürthElektronikeiSos inthebusinessuniteiPalOptoelectronic. Therehespecializesonthebiological,opticalandelectricalparametersinthefieldof VerticalFarmingandHorticultureLighting. Hesupportsthedevelopmentoflightconceptsintheareaofplantlighting.

https://www.we-online.com/en

HORTICULTURE IOTUSECASEGREENHOUSE 43 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design

Solid-StateLightingReport–

TheImpactofLEDsonElectricity ConsumptionandGlobalWarming

Dr.J.NormanBARDSELY,ChiefAnalystatInternational Solid-StateLightingAlliance

Dr.J.NormanBARDSLEY,Founder andSSLAnalyst,BardsleyConsulting

Dr.J.NormanBardsley,adistinguished ProfessorofPhysics,hasearnedinternationalacclaimasanexpertinsolidstatelighting(SSL)throughhisadvisory roleswiththeDepartmentofEnergy(DoE) andtheInternationalSSLAlliance(ISA). Renownedforhisextensiveandnuanced understandingofOLEDtechnology,Dr. Bardsleypossessesacomprehensive graspofitsmanufacturingprocesses,cost structures,andongoingresearchendeavors.

jnbard@pacbell.net

ThroughtheadoptionofLEDs,the lightingindustryhasmadeasubstantialcontributiontothemitigationof globalwarming.Butstocktakingmade in2023bytheUnitedNationsEnvironmentalProgram(UNEP)showed thatthetotalglobalefforttoreduce emissionsofgreenhousegases(GHG) isfallingfarshortofwhatisneeded toachievethetargetssetintheParis Agreementof2015.TheWorldMeteorologicalOrganization(WMO)has judgedthat2023wasthehottestyear onrecordandthereseemstobeno slowingintherateofincreaseinthe globalmeantemperature.Thepurpose ofthisreportistoassessthecontributionoflightinginreachingthesegoals andtourgetheindustrytomaintainits concernaboutthisimportantissue.

GlobalMeanTemperatureDifference(°C)comparedto1850-1900average.Globaltemperaturerisepersists(Source:WMO).

Introduction

Spreadingtheavailabilityofartificiallight acrosstheglobeatanaffordablecosthas beenoneofthemajorachievementsof theLEDera.Asnotedinthelastissue ofLpR,globallightproductionhasrisen to230petalumenhours(Plmh),upfrom

135 Plmhin2005,andisexpectedtoreach 350 Plmhby2040.Muchoftheincrease hascomefromChina,wheretheper-capita productionhasrisenfrom10megalumen hours(Mlmh)to 60 Mlmhandnowexceeds thatofEurope.Thishasbeenachieved withonlyasmallincreaseinelectricityconsumption,from2650terawatthours(TWh) in2005to 2900 TWhin2023.Theshareof lightingintheglobaluseofelectricityhas droppedfrom17%to11%.Thisreduction wasmadepossiblebyanincreaseinthe averageefficacyoflightingsystemsfrom about 48 lm/Wtoaround 80 lm/W.

TheInternationalSolid-StateLightingAlliance(ISA)believesthatmuchmorecan bedoneinreducingtheenvironmental impactoflighting.Raisingtheaverage efficacyoftheglobalinstalledbaseto 150 lm/Wwouldenablefurtheraccess tohigh-qualitylightingacrosstheglobe whilereducingtheelectricityusetobelow pre-LEDlevels.

PressuresonElectricity Supply

Thesubstitutionofrenewableenergy sourcesforfossilfuelsdoesnotsolveall theenvironmentalissues.Dailyusepatternsforlightingarenotwellmatchedto solarpowergeneration,especiallyinwinter whenthepeakdemandforelectricityisin theeveninghours.Substantialincreasesin batteryproductionareneeded.Themanufactureofbatteriesrequiressignificant energyconsumptionandthedisposalproceduresbringchallengingissues [1] (IER 2023).

InNorthAmericaandEurope,transportationhasbecomethemajorsourceofGHG

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emissions.Theresultingpressuretoreplaceinternalcombustionbyelectricvehiclesisaddingtothedemandforbatteries aswellasmoregenerationofelectricity.

Themajorchallengecomesinregionsthat arestillreliantonfossilfuels.Closingdown thecoalindustryincountrieslikeIndiaand Indonesiawillhaveamajorimpactonthe incomeofworkersandontaxrevenues. Buildingreplacementenergysupplysystemsandemploymentopportunitieswill takemanyyears.

ElectricityUsebyLighting

In2006,theInternationalEnergyAgency (IEA)published“Light’sLabour’sLost” (LLL),athoroughanalysisoftheglobal impactoflightingandthepotentialfor progressthroughLEDadoption [2].Accordingtothisreport,globalelectricity useforlightingin2005was 2650 TWh, with 1500 TWhfromOECDcountriesand 1150 TWhfromdevelopingeconomies.In mostdevelopingcountries,theincrease intheconsumptionofelectricityforlightingcorrelateswellwiththegrowthinGDP, expressedinconstantdollars.Thistable showstheestimatesmadebyISAforthe fivemembersoftheBRICSworkinggroup.

powergenerationandtoreducetheburningoffossilfuelsinelectricityproduction. Throughgreaterrelianceonrenewable energysources,theelectricitygeneration industryinNorthAmericaandEuropehas achievedsubstantialreductioninGHG emissions.However,thesegainshave beenoffsetbygreateremissionsinmany countrieswithinAsia.

Theadoptionofrenewablesourcesofenergyhasledtoareductionintheaverage globalemissionofGHGforeachkWhof electricitytolessthan500gramsofCO2 However,thevalueremainshighformost developingcountries,especiallyinAsia [4]

CO2 emissionintensity(gCO2 /kWh)fromelectricitygeneration(Source:IEA).

Coal-firedpowerremainsthemajorsource ofsupplyintheAsia-Pacificregion,accountingfor57%ofelectricitygeneration in2023.Thisleadstootherenvironmental concerns,inadditiontoglobalwarming. Thefigureshowsthattheconsumptionof coalinIndiaisexpectedtorisesignificantly inthenextdecade.

Electricitygenerationisdrivingtheburningof coalinIndia.Source:S&PGlobalCommodity Insights.

LightingContributionto GHGEmissions

GreenhouseGasEmissions

Itisgenerallyacceptedthatthehigher emissionofgreenhousegasesisthemajorcauseofglobalwarming.Totalglobal GHGemissionsrosefrom47gigatons(Gt) in2005to 57 Gtin2022,withabouttwothirdscomingfromenergyproduction.AccordingtoUNEP,thetotalemissionsneed tobereducedtobelow 40 Gtby2030to meettheminimalgoalofrestrictingmean temperaturerisetolessthan2% [3]

Thekeytomeetingthegoalsseemsto betoincreasetheroleofelectricityin

AccordingtoLLL,thecontributionoflightingtogreenhousegasemissionsin2005 wasabout1900megatons(Mt)ofCO2 per year.TheISAestimatesthatthiscontributionisnowaround 1350 Mt,with 250 Mtin OECD, 600 MtfromChinaand 500 Mtfrom otherdevelopingeconomiesThereductionhasbeenenabledbytheadoptionof LEDsbuthasbeenachievedmainlybythe greateruseofrenewablesourcesinelectricitygeneration.

ThedatafromtheWMOshowsthatradical actionsareneededtoconstraintherise inmeanglobaltemperaturetolessthan 2°C.Thelightingindustrycancontinueto

provideleadershipbyreducingelectricity consumptiontowellbelowthe2005level of 2650 TWh.Theremainderofthisarticle summarizessomeofthewaysthatthiscan bedone.

LEDEfficacy

AlthoughLEDsnowofferefficiencyfarsuperiortothatoftraditionalsources,much morecanbeachieved.Thetheoreticallimit fortheproductionofwhilelightisaround 400 lm/WforawiderangeofColorRenderingIndex(CRI)andCorrelatedColor Temperature(CCT).SomelossesareunavoidableandthetargetoftheUSDOEfor 2050is 320 lm/W.Reachingthisgoalwill requirethemixingofLEDsofdifferentcolors,ratherthanphosphor-convertedblue LEDs.

Maximumluminousefficacyofradiationinlm/W forwhitelight.Source:JeffTsao.

SmartLighting

Smartlightinghasbecomeamantrafor manyinthelightingcommunityandneeds littleelaborationinthisarticle.Thereare manywaystoimprovetheefficiencywith whichthelightproducedbyLEDsisdelivered.Greatercontroloverlightdistribution canenablethedesiredilluminationlevels tobemetwithlesstotallight.Thisisespeciallytrueforoutdoorlighting.Schemesto adapttodaylighting,roomoccupancy,circadianrhythmsandpersonalpreferences havebeenpromotedforyears,butsuccessfulimplementationhasprovedtobe challenging.Thisisespeciallytrueforconnectedlightingandnetworkedcontrols.

AsurveybytheDesignLightsConsortium (DSL)andtheNorthwestEnergyEfficiency Allianceshowedaverageenergysavings of49%fromnetworkedlightingcontrols [5].However,in2019theUSDOEestimatedthatlessthan1%ofluminairesin theUSwereconnectedinthisway.They attributedthelowadoptionratetotheir complexconfiguration,highcost,limited interoperability,andtheavailabilityofpeoplewhoknowhowtoefficientlydesign, install,commission,andoperatethem.

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TWh Country 2010 2020 Ratio Brazil 72.7 65 0.89 China 550 1000 1.82 India 114 128 1.12 Russia 115 133 1.15 SouthAfrica 24.7 34.5 1.4 GDPpercapita Country 2010 2020 Ratio Brazil 10710 8921 0.83 China 4428 9771 2.21 India 1475 2016 1.37 Russia 10442 11289 1.08 SouthAfrica 7279 6340 0.87

Signifyisproudtoannouncethattheirsystemshaveconnectedmorethan100M lightpoints,butthisisfarlessthan1%of theglobalbase.

Theneedforimprovementinso-called smartlightingsystemswasdocumentedin the2022reportbytheIEA4ESSLAnnex [6].Amongthedisturbingfindingsfroma studyof224smartlampsandluminaires were:

• Theaverageefficacywasonly 73 lm/W, whichwas 10 lm/Wlessthanthatfor non-smartlampsintheUSEnergyStar databaseinthesameperiod.

Measuredefficacyfor224smartlightingproductsintheSSLAnnexdatabase.

• Innetworkedsystems,thegatewayand thestand-bypowercontributedbetween 33%and70%ofthetotalenergyconsumption.

Divisionoftotalenergyconsumptioninnetworkedsmartsystems.Source:IEASSLAnnex.

• Inone-quarterofthetestedproducts, dimmingto25%offullpowerledto areductionofefficacybyasmuchas 74%.

LampManufacturingand Distribution

Inordertoreducecosts,mostlampson themarkettodayuseLEDsthatarefar fromthebestavailable.Forexample,recentdatafromtheEuropeanProductRegistryforEnergyLabelling(EPREL)shows thataroundtwo-thirdsoftheGeneralServiceLamps(GSL)nowonsalehaveefficacylessthan 110 lm/W.

Althoughthebansonfluorescentlampswill eliminatemanyinefficientlights,theindustryismissinganopportunitytoenablea significantriseintheaverageefficacyofthe installedbase.TheEPRELdataconfirms

thatLEDtubesareavailablewithefficacy greaterthan 160 lm/Wandtheon-linevendor1000Bulbsshowsthatthesecanbe purchasedintheU.S.atpriceslessthan $2perklm.But65%oftheLEDtubes listedintheEPRELdatabaseinMarch 2024andalmostalltubesofferedbymajor hardwarestoresintheUShaveefficacy lessthan 135 lm/W.Mostoftheseproductshaveoperatinglifetimesof35,000 hoursormoreandsomayremaininoperationfordecades.

Innovativemanufacturingmethodsare neededtoreducethecostofproducing goodqualitylampsandlightingsystems. Inaddition,distributorsandretailersneed topaymoreattentiontotheefficacyofthe productstheyofferandtopromotingthe benefitsoflowerenergyconsumptionfor boththeuserandtheenvironment.

IncentivesandRegulations

Awiderangeofmeanshavebeendevised acrosstheglobetoencouragetheuse ofmoreefficientlights.Forexample,the DLCprovidesguidelinesandaproduct databaseforU.S.utilitiesthatofferrebatesforpurchasesthatwillhelptoreduce electricitydemand.TheEPRELlabelling systemclearlyinducedmanufacturersto introduceproductsthatmeetthehighest standards,althoughsomeoftheseproductsarerelativelyexpensive.Theoverall effectoftheEPRELprogramisillustrated inthetablebelow.Thedistribution(%) betweenthesevenefficiencyclassesis shownforproductsonthemarketinApril 2022andFebruary2024.Thelastcolumn showsthoseaddedsinceOctober2023. Althoughtherecententriesshowasubstantialincreaseinthetopthreeclasses, mostproductsonthemarketarestillinthe bottomtwo.

oftheelectricityconsumptionorthelight outputismissingfromsomepackageson storeshelves.

LEDAdoptioninDeveloping Countries

ValuablesupportfortheadoptionofLEDs indevelopingcountrieshasbeenprovided byinternationalorganizationssuchas CLASP,theIEA4ESSLAnnex,UNEPand theISA.Thissupportshouldbecontinued, perhapstogetherwithadditionalhelpfrom theGlobalLightingAllianceandtheIEEE SmartLightinginitiative.However,muchof theresponsibilitylieswiththenationaland localgovernments,whocouldfollowthe exampleoftheauthoritiesinChina.

MuchoftheearlyadoptionhasbeenenabledbytheavailabilityofaffordableLED productsfromChina,whichhavebeen heavilysubsidizedbytheChinesegovernments.However,countriessuchasIndia, IndonesiaandThailandarebuildingthe facilitiesandinfrastructureneededforsubstantiallocalmanufacturing.Forexample, Indiahaslaunchedaproduction-linked incentive(PLI)initiativetoboostthecontributionofdomesticmanufacturingtothe costoflightingproductsbaseduponimportedchipsandpackagesfrom25%to 85%by2028.

Summary

Thecontributionoflightingtoglobalwarminghasbeenmitigatedoverthepasttwenty yearsthroughthecombinedeffortsofthe lightingandelectricitygenerationindustries.However,moredrasticactionsare needed,andthelightingcommunityhas theopportunitytoshowevenmoreleadershipinthiscriticalendeavor.

References

[1] https://www.instituteforenergyresearch.org/renewab le/environmental-impacts-of-lithium-ion-batteries/ [2] https://www.iea.org/reports/lights-labours-lost [3] https://www.unep.org/resources/emissions-gap-rep ort-2023

[4] https://www.iea.org/reports/electricity-2024

[5] https://neea.org/resources/energy-savings-from-net worked-lighting-control-systems-with-and-without-l uminaire-level-lighting-controls

Thereisanurgentneedforacomprehensivelabellingsystemfortheefficiencyof lightsintheUS.CertificationbytheEnergy Starprogramisalmostmeaningless,since morethan93%oftheapprovedlamps haveefficacybelow 110 lm/Wandso wouldfallinthelowesttwoclassesofthe EPRELscale.Theprogramisnotusedfor suppliersofLEDtubesandspecification

[6] https://www.iea-4e.org/wp-content/uploads/publica tions/2022/11/SSL-Annex-Task-7-Smart-Lighting-% E2%80%93-New-Features-Impacting-Energy-Consu mption_second-report_final.pdf

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ProductDistribution(%) Effcacy April February Last5 Class lm/W 2022 2024 months A over210 0.07 0.6 2.4 B 185–210 0.51 1.4 4 C 160–185 3.2 5.9 8.3 D 135–160 8.9 13.1 13.2 E 110–135 23.1 23.6 26.4 F 85–110 43.2 35.6 30.4 G below85 19.7 19.5 15.7
Mains

Eco-InnovationinLighting: LCA-CALCLeadstheWayin SustainableLightingSolutions

LCA-CALCwasbornoutofTiphaine Treins’s,founderandCEOoftheinnovativeeco-lightingstudioTemeloy, frustrationswiththeinabilitytoobtainreliable,scientifc,andusable eco-designmetricsatareasonable cost,combinedwithherdesiretoinnovateandmovethelightingindustry markedlyclosertowardsamoreenvironmentallyconsciousfuture.

MsTreinspartneredwiththeInternational ReferenceCenterforLifeCycleAssessmentandSustainableTransition(CIRAIG) tobuildLCA-CALC.CIRAIGisacuttingedgelifecycleassessmentresearchcenterthatdevelopsmetricsnecessaryfora transitiontoaneco-friendlysocietyand isaffiliatedwithPolytechniqueMontreal. Thismadethepartnershipanobviousand fruitfulfit.UsingCIRAIG’sexpertise,Treins createdthefirstonline,accessibleandaffordabletooltocalculatetheenvironmental footprintofallLEDlightingfittings(exterior, interior,decorativefittings)usinglifecycle assessment(LCA). https://lca-calc.com/

LCAisgovernedbytheISO14040-44 standards.Thegeneralmethodologyof LCAisfirstthequantificationofalltheexchangeswiththeenvironment(resource inputsandemissionstoair,waterandsoil) ofalltheactivitiesrelatedtotheuseofa product,coveringallitslifecyclestages: theinitialextractionandtransformationof naturalresources,themanufacturingofthe product,itsdistribution,useandend-of-life Figure 1.Thequantifiedexchangesare thenconvertedintorelevantenvironmentalindicatorresults,suchasthe climate change indicatorinkgofCO2 equivalents.

TherearefourphasestoanLCAstudy:

1. Thegoalandscopedefinition,where therecipe,i.e.,thewhatandthehow, forthestudyisspecified;

2. Thelifecycleinventory(LCI)analysis, wheredataabouttheenvironmental exchangesoftheconsideredactivities arecollectedandrelatedtoareference unit;

3. Thelifecycleimpactassessment(LCIA), wherethequantifiedenvironmentalexchangesareconvertedintotherelevant environmentalindicatorunits;and

4. Theinterpretationoftheresults,where theirenvironmentalsignificanceisassessedandrecommendationsandconclusionsaredrawn.

TwomodesareavailableinLCA-CALC,the firstismorefocusedoneco-designand identifyingthemainactivities/components/materialscontributingtoalightingfitting environmentalfootprintandthusguiding effortstoimproveit,thesecondisaimedat producinganenvironmentalproductdeclaration(EPD)foralightingfitting.AnEPD isacommunicationtoolusedtoprovide theenvironmentalfootprint,i.e.,aseries ofrelevantenvironmentalindicatorresults calculatedthroughLCA,ofaproducttoa targetaudience.EPDcanthenbeusedto comparetheenvironmentalperformanceof similarproducts.

Asmultiplemethodologicalchoiceshaveto bemadeduringanLCA,e.g.,thesystems boundaries(specifyingtheconsideredactivities),thecalculationreferenceunit,the setofenvironmentalindicators,forEPD tobecomparabletheLCAmethodology needstobeconsistentlyappliedtoeach product,i.e.,theLCArecipeandtheelementspresentedintheEPDneedtobethe same.Productcategoryrules(PCR)are usedtospecifytherecipefortheLCAservingasthebasisfortheEPDofproductsin asamecategory.EPDandPCRaregovernedbytheISO14025standard,which requiresEPDprogramoperatorstomanagethepublicationofPCRandEPD.A PCRforlightingfittingsisavailablethrough theFrenchPEPEcopassportEPDprogram operator,thePSR0014,whosesecond editionwaspublishedin2023andisfollowedbytheEPDmodeinLCA-CALC.As ofnow,noPCRisavailablefortheNorth Americanmarketbutathinktankisworkingofdevelopingoneinthenearfuture.

SeveralLCIAmethodsareavailabletoLCA practitioners,LCA-CALCincludestwoof themostrecentlydevelopedones:EnvironmentalFootprint(version3.1)and IMPACTWorld+(v2.01).TheAmerican TRACI(v4.2)methodwillbeaddedinthe nearfuture.Eachmethoddiffersinthe setofenvironmentalindicatorsitprovides, andtheenvironmentalmodelsusedtocalculatetheirresults.TheEFv3.1method, specifiedinthePSR0014ed.2,provides asetof16ofwhatarecommonlycalled midpointindicatorswhichfocusonspecificissueslike climatechange,stratosphericozonelayerdepletionorfreshwater eutrophication;resultsaregenerallyexpressedinunitsofreferencesubstance equivalents(kgCO2 eq.forthe climate change indicator).IMPACTWorld+v2.0.1 providesthreelevelsofindicators:midpoints,damagesandareasofprotection (AoP).Theincludedmidpointindicatorsare verysimilartoandprovidethesamelevel ofenvironmentalcoverageastheonesin EFv3.1.Thoseare,however,translated

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intodamagesontheareasofprotection (AoP) HumanhealthandEcosystemquality.TheAoPindicatorsaggregateseveral relevantmidpoints,thusreducingthenumberofindicatorstobeconsideredinthe assessmentandfacilitatingtheinterpretationoftheenvironmentalfootprint.The firstaccountsforthepotentialimpactson humanhealthfromgreenhousegases, toxicsubstances(carcinogenicandnoncarcinogenic),thosethatleadtorespiratory problems,thatgenerateionizingradiations orphotochemicaloxidant(smog)andthat depletethestratosphericozonelayerand wateravailabilityandisexpressedinDALY

(disability-adjustedlifeyears).Thesecondaccountsforthepotentialimpactson ecosystemquality,orbiodiversity,from climatechange,acidification,eutrophication, freshwaterecotoxicity,landuseandwater availabilityandisexpressedasthefraction ofspeciesthatwillpotentiallydisappear (potentiallydisappearedfraction–PDF)in agivenareaandoveracertaintimeperiod (PDF*m²*year).LCA-CALCprovidesresults forthe HumanhealthandEcosystemquality AoPandtheFossilandnuclearenergy useandMineralresourcesusemidpoint indicators.

Inordertomodelthelifecycleofthelightingfittings,theuserentersdataintothe onlineplatform.Requireddataincludes thelistofmaterialsandtheirrespective amounts,manufacturing,distribution,use andend-of-lifeinformation.Lightoutput, driverpower,fittingandcomponentslifetimeandelectricityconsumptionduring useandstand-bydataarealsorequired. Allactivitiesdirectlyrelatedtothelighting fittingmakeuptheforegroundsystem, essentiallythemanufacturing,distribution anduselifecyclestages,whileallother activitiesmakeupthebackgroundsystem: materialsandcomponentsproduction,energy(electricity)production,transportsand wastetreatment.Asspecificdatacannot becollectedforallbackgroundactivities duetotimeandcostconstraints,thoseare modeledusinggenericdatasetstakenfrom lifecycleinventory(LCI)databases.LCACALCmakesuseofdatasetsincluded inthewidelyusedandannuallyupdated LCIdatabaseecoinvent,version3.9.1 (2023)usingthe Cut-off systemmodel. Thisdatabaseprovidesglobalcoverage fortheincludedactivitieswhilepresenting regionallydifferentiateddatasetsforseveralactivities.Theglobalaveragecontext wasconsideredinLCA-CALCbutforthe electricitygenerationduringtheusestage forwhichseveralregionalandnationalgridmixesareavailable.Agenericdatasetis availablefortheproductionofLEDbutthe usercanalsoadaptittobetterrepresent itsownLEDdesignwhentheyhavetheinformation.

LCA-CALCcanalsomodellightingfittings designedwithacirculareconomymodel. Thetoolcanconsiderthereuseofcomponents,byincludingthetransportand treatmentoftheprevioususedfitting,and includesdatasetsonrecycledmaterials. Forthelatter,theapproachusedisconsistentwiththeecoinvent Cut-off system model,whichconsidersthatallburdens associatedwiththecollection,sortingand recyclingofthepre-recyclingmaterial,i.e., wastematerial,areallocatedtotherecycledmaterialandthelifecyclewhichuses it.

Oncethelightingfittinglifecycleismodelledbyenteringallrequireddataforeach lifecyclestage,LCA-CALCrelatesallthe entereddatatothecalculationreference unit(“providing1000lumensfor35000 hours”or“providingthelumenoutputof thelightingfittingoveritslifetime”)and providestheabsoluteandrelativeresults forthesetofindicatorsofeitherincluded LCIAmethods(EF3.1andIMPACTWorld+ 2.0.1).Thefirstincludesthegenerallyacceptedindicatorforcarbonfootprintsin kgCO2 eq.(splitintofossil,non-fossiland

Figure1: LifeCycleAssessment(LCA)methodologyisacomprehensiveapproachusedtoassessallthe environmentalimpactsassociatedwithallthestagesofaproduct’slifefromitsbeginningtoitsend.
DESIGN LCA-CALCLEADSTHEWAYINSUSTAINABLELIGHTINGSOLUTIONS 49 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design
Figure2: LCAreportcalculatedfromthecalculatorhelpsunderstandandevaluatetheseverityand significanceofthepotentialenvironmentalimpacts.

landtransformationsub-indicators).The toolalsogeneratespre-filledLCAreport andEPDtemplatesthatwillfacilitatetheir preparationfortheirsubmittaltotheverificationprocessleadingtothepublication oftheEPDbyaprogramoperatorrecognizingthePSR0014ed.2PCRforlighting fittings.

Aswaspreviouslymentioned,EPDoflightingfittingscanonlybecomparedifthey notonlyfollowthesamerecipe,i.e.,PCR, butifthesamechoicesaremadeconcerningthefewelementsforwhichPCRleave someflexibilitytothepractitionerconductingtheunderlyingLCA,e.g.,usestage electricitygrid-mix,LCIdatabaseusedto modelthebackgroundactivities.Moreover, severalcharacteristicsoflightingfittingsare notconsideredintheavailablePCRforthis productcategory,e.g.,CCT,CRI,typology,whichcouldaffecttheenvironmentalperformanceofthoseproducts.More generally,theenvironmentalfootprintofa lightingfittingshouldnotbetheonlycriteria usedtojudgeitsoverallquality:designand technicalcriteriashouldalsobeconsidered.TheLightingforGoodinitiative,anotherbrainchildofMsTiphaineTreins,aims tocreateamarketbenchmarkforlighting fittingsthatwouldaccountforallthoseaspects.In2024,itwilllaunchthefirstecolightingawardsbasedonlifecycleassessment(https://lightingforgood.org/awards/).

LCA-CALCisthefirsttoolofitskindforthe lightingindustry.Otherattempts,suchas theCharteredInstitutionofBuildingServicesEngineers(CIBSE)TechnicalMemorandum66(TM66),havebeenmadeto createenvironmentalmetricsforlighting. WhereasTM66onlyprovidesrecommendationsfordesignandmanufactureofcircularproducts,LCA-CALCisawidelyapplicableandin-depthlifecyclequantitative assessmenttoolforallLEDlightingfittings, newandreused,circularornot.

LCA-CALCisuser-friendly,flexible,accessibleandaffordableforlightingmanufacturersanddesignerswhowishtoprioritize transparentandeco-friendlymanufacturing anddesign.

TiphaineTreins,founderandprincipalof TemeloyEco-lightingInnovator,isaleading-edgelightingdesignerwhointegrates state-of-thearttechnologywithinnovation,beauty,creativityandsustainability. Treins,aFrenchnational,iscurrentlybased inLondon.Heruniquelightingsignature canbefoundonhomes,luxuryboutiques, superyachts,parks,museums,exhibitions andeventsallaroundEurope.

TreinsfoundedTemeloyLightingin2009 andhassincebeeninvolvedwitharoster ofdiverseclientsanddemandingprojects. AtTemeloy,Treinsfocusesonimproving, evolvingandinnovatinglightingdesign. Temeloyendeavourstocreateexcitement withoriginallightingconceptsthatelicitan emotionalandvisceralresponse.Tothat end,Treinshasdevelopedaplatformof “augmentedarchitecture”.Inshort,she ensuresarchitectureandlightingsolutions interactwiththeirsurroundings.Oncethat occurs,anygivenspacewill,nodoubt, createaricherexperiencetothepasserby. AgoodexampleistheGrandeEpicerie’s livingfaçadeinPariswheretheplants evolveandgrowwiththeseasons.Treins alsoimplementedaugmentedarchitectureatthe2012“RenaultCarShow”and withtheexceptionaldomeattheElephant PanameArtCenter.

Treinsfeelsallbigpictureideasrequirea holisticapproach.Keytothisistheability tolisten,andcommunicate,beforeimplementingyourideas.Treinsalsofeelsitisof paramountimportancetodevelopstrong relationships,respectandtrustwiththe peoplewithwhomyouareworking.

TiphaineTREINS.

In2018,togetherwithNicolasMartin, LVMHlightingmanageranddirectorofenvironment,Treinscreateda“thinktank”and aprogramcalledLightingforGoodwiththe objectofestablishingan“ecogoldstandard”forsuppliersoflightingfixtures.Ecodesign,eco-lighting,andsustainabilityis somethingthatTreinsnotonlyencourages butalsostrivesforwithallofherwork.

LCA-CALCrepresentsasignificantstep forwardinherpathofeco-innovator,demonstratingacommitmentthathasdemanded patience,resilience,anddetermination.

Treinsiscommittedtocreatinganddeliveringoutstandingresultstoeachandevery projectthatshemanages.Herpassion anddedicationareevidentinherwork. Sheputsherallintocreatingsomething extraordinary.AndforTreins,Eco-lighting innovationbringsresearchandintelligence totheprocessofdesigningwithlight.

Figure3: LCA-CALCencompassesanextensivearrayofeco-lightingmetrics.AfterfillingintheLifeCycle Inventory(LCI)inthecalculator,userscanextractadiverserangeofinformationandreports.Theyhavethe optiontoconcentrateonCO2 emissions,utilisethecalculationstorefineandminimisethedesignoftheir luminairesorgeneratepre-verifiedEnvironmentalProductDeclarations(EPDs)thatincludetheLCAreport.
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DESIGN LCA-CALCLEADSTHEWAYINSUSTAINABLELIGHTINGSOLUTIONS

ConnectingLightingDesignand CircadianResearchwithAI

Dr.AdriàHUGUET-FERRAN,Founder&CTOofKUMUX

Thebeneftsofdynamiclighting,aligned withcircadianrhythms,havebeen demonstratedbynumerousscientifc studies.However,whenattempting tointroducethislightingsolutionto clients,suchasoffceowners,there arepracticalchallengesinitsapplication.Theseincludediscrepancies amongscientifcstudiesandthediffcultyinapplyingspecifccircadian metrics,likeMelanopicEquivalent DaylightIlluminance(mEDI)andCircadianStimulus(CS),versusmore familiarcolorimetricparameterslike CorrelatedColorTemperature(CCT) andColorRenderingIndex(CRI). https://kumux.io

Thepotentialcircadianimpactcannotbe predictedbyCCTalone [1],complicatingappropriateluminaireselectionwithout knowingtheirSpectralPowerDistribution(SPD).Additionally,circadianscientific guidelinesarebasedonthespatialconditionsofanenvironment,complicating theassurancethatrecommendationsare fulfilledwithoutdetailedknowledgeofthe SPDorthespecificcircadianattributesof thelightingfixture.

KUMUXhasdevelopedadvancedmachine learning(ML)algorithmsthatpredictthe valuesofcircadianmetricsfromcolorimetricparameters,addressingtheissueof criticaldatascarcityinlightingprojects.An ApplicationProgrammingInterface(API) hasbeendevelopedandhasbeenimplementedinsideasoftwareplatformto facilitatetheintegrationofthesealgorithms intomajorexistinglightingcontrolsystems. ThisenablestheadjustmentoftheCCT andbrightnessofluminairesinaccordance withcircadianscientificguidelines.This systemactsasabridgebetweenscientific theoryandpractice,enablingtheoptimizationoflightingcontrolsystemswithapplicationofscientificknowledgetoaproject throughAI(Figure 1).

DevelopingtheModel

Spectraldatafrom1,719whiteLEDsof variousbrandshavebeencollected,with CCTsrangingfrom 2000 Kto 7000 K,includingthosethatemitintheshort-wave spectrum(380–450 nm).Keyparameters suchasCCT,CRI(CIERa),theMelanopic DaylightEfficacyRatio(mDER),andCS(v2) at 100 lxhavebeencalculated.Theseparameters,bothcircadian(mDER,CS)and colorimetric(CCT,CRI),canbedisplayed intwocomparativecharts,illustratingthe relationshipbetweenthem.

Asobservedin Figure 2,itisconcluded that,forawhiteLED,determiningthe mDERortheCSbasedexclusivelyonthe CCTisnotpossible,aspreviouslymentioned.However,lookingatthecolorofthe

charts,relatedtotheCRI,itispossibleto seethatthereisasignificantcorrelation. Specifically,whiteLEDswithahigherCRI tendtohavehighercircadianvaluesforthe sameCCT.

Figure2: mDERasafunctionofCCT(top).CS at 100 lxasafunctionofCCT(bottom).Inboth casestheCRI(CIERa)isrepresentedbythe color.

Althoughnotdirectly,thereisanon-linear relationshipbetweencolorimetricandcircadianparametersincommercialwhite LEDs.Inthisway,thefollowinghypothesis canbeproposed:isitpossibletoidentify ageneralmodelthatenablesthepredictionofcircadianvalues(mDERandCSat 100 lx)basedonlyontheCCTandCRIof acommercialwhiteLED?Toachievethis, thebenefitsofRandomForestregression modelshavebeenutilized,whicharecapableofidentifyingrelationshipsrangingfrom classicallineartomorecomplexnon-linear ones.

Forthispurpose,thesetof1,719LEDs hasbeendividedintotwosubsets:

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| hello@kumux.io

• Trainingsubset:datasetusedtoteach theMLmodeltoidentifypatternsand makepredictions.

• Testsubset:datasetusedtoevaluate theabilityoftheMLmodeltogeneralize tonewexamplesnotseenduringtraining,sinceitisindependentofthetraining subset.

Avalidationsubsethasbeendiscarded becausethemodelitselfalreadyhasmechanismstoavoidoverfitting,theprocessby whichaMLmodellearnsthedetailsand noiseofthetrainingdatasettosuchadegreethatitimpairsitsperformanceonnew andunseendata.Thus,thetrainingsubset consistsof1,375LEDswhilethetestsubsetconsistsof344,randomlychosen.

Aftertrainingthemodelwiththe1,375 LEDsinthetrainingsubset,calculations wereperformedforthe344LEDsinthe testsubset,whichwerenotpreviously seenbythemodel.

ResultsoftheModel

InthissectionthepredictivemodeldevelopmentanderroranalysisforthemDER parameterisshown,althoughthesame procedure,withverysimilarresults,canbe appliedtotheCSparameter(at 100 lx).

ThepredictionsofthemDERparameteras afunctionoftherealmDERvaluesofthe testsubsetcanbeseenin Figure 4

Toevaluatetheeffectivenessofthemodel, somerelevantstatisticalparametershave beencalculated,suchasthecoefficient ofdetermination R2 .The R2 isastatisticalmeasurethatreflectstheproportion ofthevariationinthedependentvariable (mDER)thatcanbeexplainedbytheindependentvariables(CCTandCRI)ina regressionmodel.Insimplerterms, R2

showshowwelltheobservedvaluesfit themodeledorpredictedvalues.An R2 of1meansthatthemodelexplainsallthe variabilityinthedata,whilean R2 of0indicatesthatthemodelexplainsnoneofthe variability.Inthiscase,the R2 obtained was0.988,whichimpliesthatthemodel canexplain 98 8 %ofthemDERvariability fromtheCCTandCRI.Thissuggeststhat themodelhasaverygoodfitandthatthe CCTandCRIvaluesareabletopredictthe mDERvaluesincommercialwhiteLEDs.

Now,therelativeerroranalysisofthe 344LEDsinthetestsubsetisshownin Figure 5

In Figure 5 itispossibletoseethatthe relativeerrorsare,inthevastmajorityof cases,negligible. 95 %ofthepredicted valueshavearelativeerroroflessthan 5 %.

InthecaseofCS,verygoodeffectiveness valuesarealsoobtained.Inthiscase, R2 is0.982.Thesmalldownwarddifference isexplainedbythefactthatthecalculationoftherealCSvalueisnotlinear,since itcontainstwodifferentfunctionsforthe

Figure5: HistogramofrelativeerrorinmDER prediction(top).Percentageofpredictionsforthe mDERparameterthatarewithinagivenrelative errormargin(bottom).

RelativeSpectralContributionoftheCircadianResponse [2].Thediscontinuity canbeclearlyvisualizedaround 3500 Kin Figure 2 (bottom).AlthoughtheMLmodel isabletoincorporatethisdiscontinuity, thiscausesthefittoloselinearityandgain complexity.Relativeerrorsalsoremain practicallynegligibleinthevastmajorityof cases. 94 %ofthepredictionsarebelow 5 %error.

LimitationsoftheModel

MLmodelsarecharacterizedbylearningbyidentifyingpatternsinthedatasets. Sincethetrainingsubsetonlycontains datafromcommercialwhiteLEDsofdifferenttypes,themodeldevelopedisonly validforcommercialwhiteLEDs.Inthis case,theCCTislimitedbetween 2000 K and 7000 K,sincemostofthewhitelightingiswithinthisrange.Thislimitationallowsustoisolateextremecasesandimprovetheresultsinthisareaofinterest.

It’scrucialtounderstandthatwhileamodel canbedevelopedtopredictthemDER(or mEDI,whenconsideringtheilluminance value)andCSvaluesat 100 luxwithhigh accuracy,basedsolelyontheCCTand CRI,thesepredictionscannotbeuniversallyappliedtoanySPD.InspecialmultichannelLEDsormultichannelluminaires (beyondtunablewhite),whereverydifferentSPDscanbeobserved,themodel willprobablyfailconsiderablyinitspredictions.Therelationshipshownin Figure 2 betweencircadianmetricsandcolorimetricparametersisnotapplicableinthese cases.

Figure1: SchematicofKUMUXpositioninacircadianlightingproject.
CONTROLS CONNECTINGLIGHTINGDESIGNANDCIRCADIANRESEARCHWITHAI 53 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design
Figure3: Schemeoftransformationfromcolorimetrictocircadianparameters. Figure4: PredictedmDERasafunctionofreal mDERwiththeCCTplottedincolorforthe344 whiteLEDsofthetestsubset.

ConclusionsoftheDeveloped Model

Generalizing,CCTandCRIcannotexplain thevalueofmEDIorCSatagivenilluminance,sincetheSPDcanpotentiallyhave verydiverseshapes.Nevertheless,the developedmodelisabletopredictvery accuratelythevalueofthementionedcircadianmetricsbyknowingtheCCTand CRIofacommercialwhiteLED.Thisfact allowsworkingmoreaccuratelyinacircadianlightingprojectwhenitisnotpossible toknowtheSPDoftheluminairesused, butcommonparameterssuchasCCTor CRIcanbeknown.

CompliancewithCircadian Guidelines

Anothercrucialaspectofacircadianlightingprojectisdeterminingtheappropriate valuesofCCTandbrightnesstoschedule throughouttheday.Despiteusingversatile luminairesandunderstandingthecharacteristicsofthespace,includingaccurate calculationsofilluminances,itisessential tospecifythevaluesthattheluminaireswill deliveratdifferenttimes.Circadianlightinggoesfarbeyondhavingtunablewhite luminairescapableofprovidingverywarm orverycoldlighting.Itisnecessarytotake intoaccountscientificstudies,sometimes dependingontheenvironmentorusers studied,toapplytheappropriatelightfrom acircadianpointofview.

Thus,oncethepotentialcircadianimpact oftheluminairesiscalculated,itistimeto choosewhichguidelinetofollow.Numerouspublishedstudiesandguidelinescan befound,suchasthoseoftheLighting ResearchCenter(LRC) [3],Underwriters Laboratory(UL) [4] ortheWELLBuilding Standard [5],aswellasscientificpublicationsthatdonotdependdirectlyonan organization [6].Eachhasitsadvantages ordisadvantages,whichdependonthe casestudy.

Whenitcomestocontrolsystems,standardprotocolssuchasDALI2andproprietarysystemsofferedbycompanieslike Casambitypicallyallowforthemanipulationofonlytwoparameters:theCCTand brightnessofaluminaire.Thislimitation posesachallengeforexecutingcircadian lightingprojects,whichrelyonspecific metricssuchasmEDIorCS,asindicated byresearchandguidelinesinthefield. Consequently,toeffectivelyimplementcircadianlightingstrategies,itbecomesnecessarytomaptheadjustableparameters ofCCTandbrightnesswiththedesiredvaluesofcircadianmetrics.

Tosimplifythisprocess,KUMUXhasdevelopedanalgorithmthatperformsallthese calculationsinasimulatedway.Inadditiontotheinvestigationsconcerningthe circadianimpactatthelightlevel,design constraints,suchasKruithoflimits,have alsobeentakenintoaccount.

DeliveringtheResultsinReal Projects

Inordertoapplythedevelopedalgorithms tothelightingcontrolsystems,asoftware platformhasbeendeveloped.Havingthe CCTandtheCRIsoftheLEDsoftheluminaire,theaveragehorizontalilluminance andtheratiobetweenverticalandhorizontalilluminance,theplatformdelivers thelightingsettingsintermsofCCTand brightness(orilluminance)thatthecontrol systemshouldsetthroughouttheday,dependingongeolocationandtypeofbuilding.Inaddition,thecalculationscanbe customizedbysettinglimitstotheCCT rangeorlimitingthebrightnesstoaminimum,amongothers.

Tofacilitatetheintegrationprocess,the platformallowsapplyingtheresultsandits automationinnumerouscontrolsystems, suchasCasambi,PharosArchitectural Controls,Lutron,OSRAM(nowInventronics)ortheKNXecosystem.

Anexampleofthedataobtainedcanbe seenin Figure 6

CaseStudy–BeAbleOfficeProject

Recently,aprojectwascarriedoutinanofficelocatedinMadrid,Spain.Inthiscase, thealgorithmsdescribedabovewereutilizedtointegratethecircadianschedules definedbytheLRCandtheWELLBuilding Standard.

Oncethenewsystemhasbeenimplemented,spectralmeasurementshave beentakenintheverticalplane,1.2metersabovetheground,toverifytheresults oftheproject.Inthiscase,theresultsprovidedbyKUMUXcompliancewiththeof-

ficeguidelinepublishedbytheLRC(green area),ascanbeseenin Figure 7

Conclusions

Inconclusion,thisarticlehasdemonstrated theeffectivenessofMLalgorithmsinpredictingcircadianmetricsfromcolorimetric parameters,therebyaddressingasignificantgapinlightingprojectplanning.The potentialimpactofthistechnologyonfuturelightingstandardsandhealthguidelinesissubstantial,asitpromisestoenhancethealignmentofartificiallighting withhumancircadianrhythms,potentially improvingsleepquality,mood,andproductivity.Thedevelopmentandadoption ofthismodelandplatformareencouraged, astheyrepresentasignificantstepforward intheintegrationofscientificknowledge intopracticallightingsolutions.Furtherresearchandwidespreadimplementation couldleadtomorepersonalized,healthsupportivelightingenvironments.

References

[1] T.EspositoandK.Houser,“Correlatedcolor temperatureisnotasuitableproxyforthebiologicalpotencyoflight,”ScientificReports2022 12:1,vol.12,no.1,pp.1–18,Nov.2022, https: //doi.org/10.1038/s41598-022-21755-7

[2] M.S.Rea,M.G.Figueiro,A.Bierman,andR. Hamner,“Modellingthespectralsensitivityofthe humancircadiansystem,” http://dx.doi.org/10.1177 /1477153511430474,vol.44,no.4,pp.386–396, Dec.2011,doi:10.1177/1477153511430474.

[3] M.G.Figueiroetal.,“TailoredLightingIntervention forPersonswithDementiaandCaregiversLivingat Home,”SleepHealth,vol.1,no.4,pp.322–330, Dec.2015,doi:10.1016/J.SLEH.2015.09.003.

[4] “Human-centricLighting|ULSolutions.”Accessed: Feb.13,2024.[Online].Available: https://www.ul.c om/services/human-centric-lighting

[5] “Standard|WELLV2.”Accessed:Feb.13,2024. [Online].Available: https://v2.wellcertified.com/en/we llv2/light/feature/3

[6] T.M.Brownetal.,“Recommendationsfordaytime, evening,andnighttimeindoorlightexposureto bestsupportphysiology,sleep,andwakefulnessin healthyadults,”PLoSBiol,vol.20,no.3,Mar.2022, https://doi.org/10.1371/journal.pbio.3001571

CONTROLS CONNECTINGLIGHTINGDESIGNANDCIRCADIANRESEARCHWITHAI 54 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
Figure6: CCTdataforonedayfortwoluminaireswithLEDswithdifferentCRIsforthesame project,havingahorizontalilluminanceof 700 lx.

holdsaPhDinAppliedSciences.Hisarea ofexpertiseisthedevelopmentofalgorithmsforlightingapplicationsandspectral engineering.In2017,hefoundedKUMUX, aspin-offfromtheUniversityofBarcelona, whereheholdsthepositionofCTO.Inparallel,Adriàhasmaintainedconnections withtheacademicworld,makingnumerouscontributionsandservingasauniversitymaster’slevelprofessorfor7years.In 2020,hewontheLpSDigitalConference BestPaper-LEDprofessionalScientific Award2020forthework“FacingtheChallengesofSpectralEngineeringwithaNew SoftwareTool”.

KUMUX KUMUXisfocusedontransferring thepropertiesofnaturallightintoartificial light,tobringthebenefitsofsunlightindoorsandenhancepeople’shealthand well-being.FromitsoriginsattheUniversityofBarcelona,theirteamhasthelight andinnovationknowledgetocreatesoftwarethatusesexistinglightingandcontrol systemsinbuildingstosimulatedaylight.

KUMUXPhone:+34934487382

https://kumux.io | hello@kumux.io

Figure7: MeasuredCSvaluesintheverticalplaneasafunctionoftimeofdayindifferentrooms. Figure8: KUMUXplatformshowingsomedataresultingfromapplyingthealgorithmsdescribedabove.
CONTROLS CONNECTINGLIGHTINGDESIGNANDCIRCADIANRESEARCHWITHAI 55 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design
Figure9: KUMUXAPIlightingsettingsonaspringeveninginanursinghome. AdriàHuguet-Ferran isaphysicistand

DigitalTwinArchitecturefor LightingInfrastructureinthe ContextofFront-EndIndustry4.0

Wearemovingtowardsadigitaltwin architectureforthelightingindustry, asdescribedinthispaper[1]which introducesanontology-basedDigital Twin(DT)architectureforthelighting industry,integratingsimulationmodels,dataanalytics,andvisualization torepresentluminaires.Thesame paperoffersacomprehensivedefnitionofadigitaltwiningeneral,but alsoforthelightingindustry;“ADTis avirtualrepresentationofaphysical object,process,orsystem,encompassingthedigitalcounterpartofits real-worldcounterpart.Itcapturesthe properties,behavior,andcharacteristicsofthephysicalentityinrealtime, facilitatingdataexchangeandinteractionbetweenthevirtualandphysical components.Consistingofthreefundamentalcomponents—thephysical entity,thevirtualmodel,andtheconnectionenablingdataexchange—DTs serveageneralpurposeofproviding valuableinsights,enablingpredictive analysis,facilitatingoptimization,and supportingdecision-makingthroughoutthelifecycleofthephysicalobject orsystem.”

Acorrectlydefinedsetupandcurateddigitaltwinofaluminaireiscriticalconsidering thevarietyofconditionstheyaresubjected to.WecanrefertothisastheUserProfile anditincludes:

• Environmentalparameters – Temperature

– Humidity

• Operatingconditions

– Voltage

– Dimming

– On/offcycles

• Lifetimefactors

– Criticalfailuresinpowerandpower quality

– Agingeffects – Colorshifting – Remainingluminousflux

AI-TWILIGHT

[1] https://www.sciencedirect.com/scienc e/article/abs/pii/S0167739X24000359

∗ Note:Adaptedfrom https://ai-twilight.eu/ withpermission.Thisprojecthasreceived fundingfromtheECSELJointUndertaking(JU)undergrantagreementNo 101007319.Thisdisseminationofcontentreflectsonlytheauthor’sview.JUis notresponsibleforanyusethatmaybe madeoftheinformationitcontains.

Newdesignworkflowsandintegrations havebeenmadepossiblebytheintroductionofthecloudforhighperformance computing.SimScaleisworkingoncalibratingdigitaltwinthermalmodelsforLED luminairesaspartoftheAI-TWILIGHTEUfundedproject.Basedonafullyscripted application,onecanextractthermalresistancevaluesfor,e.g.SPICE-likereduced modelingwithoutevertouchingagraphical userinterface,letalonesimulationparametersordomaindiscretization(mesh).The AI-TWILIGHTprojectisbringingtogether theleadingacademicandindustrialexperts onsolid-statelighting(SSL)andLEDtechnology.“ThemaingoalofAI-TWILIGHTis tomergethevirtualandphysicalworldsto pavethewayforinnovationsinfieldswhere theEuropeanindustryislikelytobecompetitive.Self-learningdigitaltwinsoflightingsystems(LEDsource,driverofalightingapplication)willbecreatedandusedas inputforpredictingtheperformanceand lifetimeofproductandinfrastructuredesign andmanagementinanautonomousworld. Testswillbecarriedoutinselectedapplicationdomains,e.g.automotive,horticulture, generalandstreet-lighting.”(https://aitwilight.eu/)

LightingDigitalTwinsUsingCloud NativeEngineeringSimulation Cloud-nativesimulationforLEDsoffers 3Dparametricscenarioanalyses,allowingengineerstogeneratemultipleCAD variantsandstudytheminparallel.Advancedphysicssolversandmeshingalgorithmsreducesimulationtimeandfocuson insight-drivendesign.Applicationprogramminginterfaces(APIs)enablethird-party CAD,analysis,optimization,andparametricdesigntoolstocollaborate,promoting ’coopetition’betweentechnologyfirms.

TheAI-TWILIGHTprojectaimstoreduce thecostofdevelopingandtestingadvancedSSLproductsbyusingsimulation, statistical,andartificialintelligencemodels. Thisallowsforfasterandaccurateanalysis ofthermalandstructuralperformanceof LEDluminaires,allowingforthecreationof digitaltwinsandtheuseofcloudcomputingpowertosimulatehundredsofdesign candidatesinparallel.Thegoalistodevelopmoreefficientandreliableproducts.

SIMULATION DIGITALTWINARCHITECTUREFORLIGHTINGINFRASTRUCTURE 56 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
Figure1: AI-TwilightEUprojectlogo∗ Figure2: A3Dthermalandflowsimulationofa luminaireshowingvelocityandtemperature.

TheworkflowdevelopedusingSimScale aspartoftheAI-TWILIGHTproject,specificallyhasuniquebenefitsincluding:

• CalibrationofparametersfortheSPICElikecompactthermalmodelorreduced ordermodelcanbedoneveryfastin parallelwithcloudcomputing

• API-drivenworkflowallowsfor

– IntegratedworkflowintoOEMstoolbox

– CustomapplicationworkflowinSimScaleorviaathirdpartyservice provider

• Nosimulationexpertknowledgerequired bySMEengineersduetoCartesian basedrobustsimulationworkflow

• Potentialofon-demandaccesstocalibrationwithoutcontinuousandfullaccesstosimulationcapabilitieswhichis quitecostly

• Accesstoabroadspectrumofphysics forthermal,flowandstructuralanalysis ofluminairedesign.

CaseStudy

TheexamplebelowshowsanindoorlightingusecasefromtheAITWILIGHTproject basedonanewspotdesignedbyEccelectroandIngélux.Theaimisthecalibrationofathermalmodelforaluminaireby extractingathermalresistancenetwork modelfromthemoreadvanced3Dsimulations.

Thethermalsimulationsarecarriedout usingConjugateheattransferanalysisin theSimScaleplatformwheresolidconduction,naturalconvectionandthermal radiationareconsidered.Allluminaireparts orasubsetoftheassemblycanbecalculatedinthesimulation,forexample,ifsome thermalresistancesareknownfromspec sheetsorphysicaltests.

Thethermalinteractionbetweencomponentsisdeterminedbyrunningaparametricstudy,heatingonepowersourceata time.Thescalablecloudbackendallows forrunningallrequiredsimulationsinparallel,cuttingdownthesimulationturnaround timefornsimulationstotheturnaround timeofasinglesimulation(Figure 5).

Thetemperatureresultsontheinterfaces oftherelevantcomponents,forexample atthesolderpoints,areextractedusing surfaceresultcontrolsandrepresentthe maininputfortheresistancecalculation. Theresistancematrixgetsassembledfrom theresistancevaluesbydividingthetemperaturedifferenceswiththedrivingpower orcombiningthesimulateddatawithpriorlyknownresistancese.g.forthechipsor heatsink.Lastly,somematrixsanitization stepsareexecuted,describedindetailin theDelphi4LEDpublicationswhichserve asabasefortheAITwilightresearch.All datasimulationanddataprocessingsteps

canbeeasilyexecutedviatheSimScale API(Figure 6).

Theresultingheatpathanddependencies betweenthepowersourcesmountedon thesubstratecanbenicelyderivedfrom theresistancematrix.Onlycomponents thathaveapositivevalueintheirrespective cross-sectioncellshowarelevantthermal dependency.Theheatpathanddependenciescanbenicelydisplayedas2D networksfromLEDjunctiontoambientand withinthesubstrateplane.Intheend,the resistancematrixallowsfortheapplication ofapowervectorwithoneentryforeach thermalnodeofthenetworkandoutputsa temperaturedeltaaboveambientforeach position,includingthemostrelevantLED junctions(Figure 7, Figure 8).

Thethermalresistancenetworkcalculated isthenusedasaninputtoalargernetworkmodelforsystemlevelmulti-physics modeling,includingelectrical,opticaland thermalproperties.Thismodelallowsthe applicationofcertaindutycyclesandambientconditionsduringthedesignphaseor canbeappliedinthefieldduringoperation topredicttheremaininglifetime.Forthat purpose,measurementdataaswellasmachinelearningmethodscanbetakeninto

Figure5: Eightsimulations,oneforeachLEDareruninparallel,accessedviaChromewebbrowser.
SIMULATION DIGITALTWINARCHITECTUREFORLIGHTINGINFRASTRUCTURE 57 Issue102/Mar-Apr/2024 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design
Figure6: ThermalresistancematrixofLEDpositionsonsubstrate,non-zerovaluesshowdependency. Figure3: Realworldspotlight(Eccelectro&Ingélux)forwhichthedigitaltwinmodeliscreated.. Figure4: Indoorluminairepartsforthethermal 3Dsimulation.

account.Duetotheseamlessworkflow thatdoesn’trequireanyin-houseoron-site computingpower,itisalwayspossibleto updateorrecalibratethethermalmodel, takingadditionaldatafromthefieldinto account(Figure 9).

Outlook&Summary

Thenewdesignmethodsdevelopedfrom theAI-TWILIGHTprojectwillallowthermalsimulationstocreatesyntheticdatafor machinelearningmodels,anoft-citedbottlenecktofullyexploitingAIandmachine learningtools.Engineerswillthenbeable toconnectoperationaldigitaltwinsthat receivefielddatawithSimScaletoautomaticallyupdatethethermalmodelinthe cloudon-demandandmaketweaks/adjustmentstothedesignscontinuously.

AlexFischer: Withabackgroundincomputationalmechanicsandcontroltechnology,AlexFischerhasworkedforten yearsinarangeofproductandengineering roles,buildingafullycloudandweb-based simulationplatform.Heisaco-founderof SimScaleandleadsthecompany’sthermal managementandelectronicssolutions.

SimScale GmbHhasdevelopedthe world’sfirstfullydeployedcloudengineeringsimulationplatform.SimScaleallows engineerstotesttheirdesignsagainstrealworldphysicsusingapowerfulCFDengine accessedthroughawebbrowser.The SimScaleCommunityPlanisaccessiblefor engineerstobeginsimulatingtheirprojects forfree.

www.simscale.com | support@simscale.com

Figure7: CompactthermalnetworkcoveringtheheatpathfromtheLEDjunctiontoAmbient. Figure8: ThermaldependenceofLEDpowersourcesonthesubstrate.Wherepositionsarenotlinked, thereisnegligibleinfluence;e.g.Position6andPosition7.
58 ©2024LugerResearche.U.|LEDprofessionalReview(LpR)|LightingTechnologies&Design Issue102/Mar-Apr/2024
Figure9: Multi-domainsystemsolvingwithelectricalandthermalin-andoutputsandadditionaloptical outputcharacteristics.
SIMULATION DIGITALTWINARCHITECTUREFORLIGHTINGINFRASTRUCTURE

ExpertTalksonLight–Micro-OpticsinAutomotive Lighting

HELLA-FORVIA|PHABELOuSPilotLine

PHABULOuS

PHABULOuSistheone-stop-shopfor free-formmicro-optics,takingdesignsand prototypestolarge-scalemanufacturing. Theyhavelaunchedanopencalltosupporttheindustrywiththeimplementation andintegrationoffree-formmicro-optics, tobringyourproducttovolumemarkets. ThisopencallaimstosupportEurope’s earlyadoptersofourpilotlineservicesto movetowardsvolumeproductionoffreeformmicro-opticalcomponents.Doyou haveadesignand/orprototypeandare lookingtomoveyourdevelopmentintopilotorlarge-scaleproduction?

ThePHABULOuSvaluechainconsistsof Europe’sleadingCompaniesandResearch &TechnologyOrganizationsallowingfor seamlessdevelopmentfromearlyphase proof-of-concepttoregulatedpilotproduction.Dependingonthephaseofthedevelopmentandmarketapplication,atechnical teamandprimecontractorareselected, whowillhelpthecompaniestoverifythe technicalrequirementsandsupportthe companybymakingadesignand/orprototypesuitedforlargescalemanufacturing.

Upthe3M€offundingisavailabletosupportaminimumof20pilotcases/early adopters.Theywillbeselectedwithin theprojecttoimplementfree-formmicroopticalcomponentandintegratethatinto theirproductdevelopmentswiththeaimto gotowardslarge-scaleproduction.Theexactamountofsubsidiesperapplicantwill bedecidedbaseduponthetypeofcompanyandthethreemainselectioncriteria. Foreachpilotcase,alsoanin-kindcontributionfromapplicantisexpected.

Formoreinformation: phabulous.eu/opencall

ContentoftheTalk

HELLA,operatingundertheoverarching umbrellabrandFORVIA,aleadingautomotivesupplierworldwide,presentsause caseinthePHABULOuSproject.Freeformmicro-lensarrays(FMLAs)offeraesthetics,potentialforspaceandweight reduction,andlow-costmanufacturing. HELLA’sinsightsintoautomotivemarket requirementshaveledtosignificantsteps indevelopingafree-formmicro-opticsbasedsolution.Watchthevideooftheuse casehere.

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DEADLINES|LpR103

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Light+BuildingFollow-Up

IntheMay/JuneeditionofLEDprofessional Review(LpR)wewilldelveintosomeaspects oftheLight+Buildingreport,focusingonthe topicsoflightqualityandlightingcontrol.In addition,wewillfeatureaninterviewwitha representativefromCIEwhowilldiscussthe latestdevelopmentsinresearchandapplication.Anotherarticlewillcoverthelatest researchinthefieldoflightingeco-design andrecycling.Inthedomainofopticaldesign,wewillexplorethesubjectoffree-form optics,specificallyforrailvehiclelighting.A furtherarticlewillexaminemarkettrendsin AsiawithaspecialemphasisonChina.

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