Light Lines Jan/Feb 15

The Year of Light: the SLL’s role

Playing to the gallery – the new LG8

Secretary Brendan'Keely'MSLL bkeely@cibse.org

SLL)Coordinator Juliet'Rennie Tel:'020'8675'5211 jrennie@cibse.org

Editor Jill'Entwistle jillentwistle@yahoo.com

Communications)committee:

Iain'Carlile'(chairman)'MSLL

Rob'Anderson

Jill'Entwistle

Chris'Fordham'MSLL

Wiebke'Friedewald

Mark'Ingram'MSLL Stewart'Langdown'MSLL

Leeman'Robinson

All'contributions'are'the'responsibility' of'the'author,'and'do'not'necessarily'

contributions'are'personal,'except' where'attributed'to'an'organisation' represented'by'the'author.

Copy)date)for)NL2)2015) is)26)January

Published)by The'Society'of'Light' and'Lighting 222'Balham'High'Road London'SW12'9BS www.sll.org.uk ISSN'1461X524X

©)2015)The)Society)of)Light) and)Lighting

The'Society'of'Light'and'Lighting'is'part' of'the'Chartered'Institution'of'Building' Road,'London'SW12'9BS.'Charity' registration'no'278104

Newsletter'can'be'something'of'a'quartX intoXaXpintXpot'exercise'sometimes,'so'

International'Year'of'Light,'and'can' reasonably'anticipate'a'greater'degree' sense'to'increase'the'size'to'16'pages. A'key'theme'in'the'newly'expanded' issue,'appropriately'enough,'is'the'IYL.' The'concept'would'be'unthinkable,'says' SLL'president'John'Aston,'without'the'

essential'that'the'lighting'community'as' a'whole'puts'its'weight'behind'wringing' the'full'potential'out'of'it.'‘The'IYL'is' an'opportunity,’'he'says,'‘but'only'if'we'

Echoing'his'presidential'address,' Aston'also'makes'the'point'that'this'

an'opportunity'to'raise'awareness' about'lighting'among'fellow'design' professionals'and'the'public'rather' than'

The'fact'that'this'year’s'AGM'will' be'held'at'RIBA'(see'the'insert'in'this' issue),'and'that'incoming'president'Liz' Peck'plans'for'the'SLL'to'engage'more' closely'with'the'architectural'body,'is'an' excellent'demonstration'of'this.'While'a'

between'lighting'designers'and

decades'as'awareness'of'the'lighting' profession'has'grown,'it'is'a'crucial'

energy'use,'for'the'greater'integration'of' lighting'systems'and,'of'course,'for'the' promotion'of'daylighting.

The'year'will'probably'comprise'

exercise'such'as'the'IYL'needs'its' ‘grand'projet’'and'the'SLL’s'plans'for'the' Unesco'World'Heritage'Sites'certainly' fall'into'that'category'(p7).

What'they'should'also'do'is'engage'a'

community,'which'is'exactly'what'Aston' is'talking'about.

Jill)Entwistle jillentwistle@yahoo.com

A'Happy'New'Year'to'you'all'and' welcome'to'the'International'Year'of' Light'2015.'The'year'ahead'offers'a' great'opportunity'for'the'society'to'further' promote'learning'and'knowledge'transfer'

We'had'a'great'time'on'the'stand' us'their'feedback.'A'highlight'was'the' congratulate'Janna'Aronson'on'taking' the'2014'title'(see'p11'for'Janna’s'feature' which'summarises'her'paper).

The'Jean'Heap'Bursary'was'also' apply'for'the'funding.'The'£2000'bursary'

society'and'the'lighting'community'at' large.'Applications'can'be'downloaded'

returned'to'us'by'31'March'2015.

The'CIBSE'Research'Fund'granted' last'year'to'the'society'has'been'

is'to'enable'research'into'the'impact' of'LED'lamps'on'health'and'wellbeing,' as'well'as'explore'issues'such'as' measurement'of'colour,'assessment' circadian'rhythms.'The'ITT'documents' should'be'returned'by'5'January.

2015 is the International Year of Light. John Aston looks at why lighting bodies must get behind the initiative

Liz Peck explains how the SLL will mark the IYL in a unique and memorable way

I'was'delighted'to'see'the'news'(NL' has'been'set'up'by'the'SLL.'I'had' actually'considered'suggesting'the' idea'but'was'concerned'about'the'

Jean'put'an'enormous'amount'into' the'society.'When'we'were'setting'it'up' in'the'late'1990s'she'worked'tirelessly' to'ensure'that'its'membership'criteria' the'profession.' As'committee'chairman'she'was' were'sacrosanct'but'always'looked'at' There'were,'after'all,'many'applications'

of'the'lighting'profession.

She'was'an'enormous'help'to'me' throughout'my'time'as'secretary'of' the'society,'not'just'on'education'and' membership'but'in'so'many'aspects'

Jonathan)David)HonFSLL LETTERS.. LETTERS...LETTERS..LETTERS...LETTERS...LETTERS...LETTERS

On'a'personal'note,'when'we' decided'on'the'criteria'for'honorary' fellowship'it'was'agreed'that'it'was'to' recognise'major'contributions'to'lighting' by'nonXmembers.'Imagine'my'surprise'

on'my'retirement'as'secretary.'Jean' had'persuaded'the'education'committee' to'change'the'rules'as'soon'as'I'was'out' of'the'door.

The'new'LG10:'Daylighting'guide'

download'from'the'CIBSE'Knowledge' Portal.'The'publication'has'been'updated' to'address'the'modern'techniques'in'

as'well'as'the'use'of'climateXbased' daylight'modelling'(CBDM).'

We'are'also'looking'forward'to'the' for'Museums'and'Art'Galleries'at'the' beginning'of'this'year'(see'p8).'Last' updated'in'1994,'this'area'of'lighting' has'been'subject'to'tremendous'change' in'both'technology'and'thinking'on'

We'welcome'LED'Linear'to'our'group' of'Sustaining'Members.'Their'support,' and'the'backing'of'all'our'Sustaining' Members,'will'enable'us'to'retain'and'

early'lighting'career.'That'includes'Ready' Steady'Light,'of'course,'which'takes' place'on'24'March'2015.'We'encourage' quickly'gets'booked'up.

society'will'partner'VIAXVerlag'for'the' PLDC'student'speaker'competition,' The'Challenge.'The'society'is'the' Knowledge'Partner'of'the'competition' which'culminates'at'the'PLDC'in'Rome' this'October.'The'next'round'of'The' down'as'chair'of'the'technical'and' publications'committee.'Paul'joined'the' chair'from'1990X94.'He'then'took'on'the' role'again'from'2011'to'December'2014.' Many'of'us'in'the'society'thank'Paul'for' of'the'Lighting'Guides,'Fact'Files,'Codes' news'is'that'Paul'will'remain'on'the' committee'with'Simon'Robinson'(WSP)' taking'on'the'role'of'chair.

the'technical'and'publications'committee' whose'current'remit'includes'the'rewrite' of'the'Code'for'Lighting'and'Handbook.' Please'contact'me'by'the'end'of'January' for'more'details.

who'has'stepped'down'from'the'Lighting' Research'and'Technology'editorial'board'

the'LR&T'board'for'14'years,'chair'for'

his'work'on'behalf'of'the'society,'the' members'and'the'world'of'lighting' research'and'education.'

The'LR&T'journals'will'increase'from' six'to'eight'editions'in'2015'and'are,'of' course,'free'to'download'to'all'members.'

Brendan)Keely,)MSLL bkeely@cibse.org

outline the new LG8 on museum and gallery lighting

YLOTY

Lighting metrics is a key topic in the latest LR&T, discovers Iain Carlile

The

Janna Aronson looks at how natural light can be translated from visual art

Lux Award-winning Reid Building at the GSA (Arup)

Artful paper wins Young Lighter of the Year award

Lighting'Design'won'the'Young'Lighter'

whose'paper'was'entitled'DaylightXArtX Atmosphere'(see'p11'for'her'summary),' was'presented'with'her'trophy'at'the'Lux' the'ILP,'for'Possible'Impact'of'Ageing' Human'Beings.'

James'Duff'of'Arup'was'awarded'Best' Presentation'Award'for'his'paper,'Any'

Katerina'Konsta'of'Atkins'Global'who' looked'at'daylighting'in'schools.

London’s'ExCel. This'was'the'20th'year'of'the' competition,'open'to'anyone'under'30' years'of'age'working'in'light,'design,' architecture,'manufacturing,'research'or' healthcare,'or'studying'a'lightingXrelated'

free'membership'of'the'SLL.

Performance'Awards'will'include'a' lighting'category.'The'following'projects'

• Belfast'City'Hall'facade'lighting,' Belfast'(Arup)

• (Cundall'Light4 )

• Transit'Shed,'King’s'Cross,'London' (Hoare'Lea'Lighting)

• Tate'Britain'Millbank'Project,' London'(Max'Fordham)

• London'School'of'Economics'(Mott' MacDonald)

• Sainsbury’s'Project'Graphite'LED' lighting'programme' (Sainsbury’s'Supermarkets)

• Wm'Morrissons,'Thornbury,' Bradford'(Thorn'Lighting,'Zumtobel' Group)

The'winners,'and'recipient'of'the'Carbon' Champion'of'the'Year'Award'2015,'will'be' announced'at'the'Building'Performance'

www.cibse.org/bpa

Ogus only ninth lighter to get CIBSE Gold Medal

Hugh'Ogus'has' been'awarded' a'rare'CIBSE' Gold'Medal,'the' institution’s'highest' honour.'It'is'only'the' 30th'Gold'Medal'

1912,'and'only'the' ninth'to'be'awarded' to'a'lighter.'

Made'an'MBE'in'2012,'last'year'he' was'also'made'an'Honorary'Fellow'of'the'

the'City'and'Guilds'of'London'Institute.

become'best'known'in'recent'years'for' his'work'with'the'Lighting'Education'Trust' (LET),'latterly'with'attempts'to'establish' a'graduate'degree'in'lighting'design,'now'

it'my'attention'or'there’s'no'point'in'being' there,’'commented'Ogus,'who'said'he'

‘If'there’s'a'job'to'be'done'I’m'

do'it.'I'think'it’s'something'in'the'blood.' You’re'here'in'this'world'and'you'may'not' change'it'but'you'can'help'make'it'better' for'other'people.’

Light year’s ahead

2015 has been declared as the International Year of Light by the UN. SLL president John Aston looks at why lighting bodies must get behind the initiative

We'all'take'light'far' too'much'for'granted.' The'sun'rises'in'the' morning'and'sets'in'the' predictable'and'reliable' basis.'When'there'is' we'get'it,'what'it'does' for'us'and'how'life'could' not'exist'without'it.'

Light’'before'escapes' me'but'it'can'only'be'

But'it'can'only'accomplish'anything'if'it'is'successfully' promoted'and'supportedh'all'lighting'bodies'need'to'be'behind'it' in'the'winter'is'being'addressed'in'terms'of'‘can'we'keep'the' lights'on?’'or'‘expect'the'lights'to'be'dimmed'this'winter’.' The'more'we'all'know'about'light'the'more'wisely'it'will' air'used'to'be'an'essential'part'of'sanatorium'designh'the'old' Department'of'Health'guides'for'hospital'designs'used'to'insist'

where'patients'were'put'to'get'better'quicker.' taken'between'the'two'world'wars.'Yet'today'we'are'looking'at' no'longer'play'outside...

IYL:)the)background

The'Unesco'International'Year'of'Light'and'Technology,'

Clothes with LEDs that light up is so 2010, but dresses that writhe around and light up simply because you stare at them is something else. Fashion designer Ying Gao has made a pair of an eye-tracking system so the dresses system] can also turn off the lights, then

gaze by activating tiny motors to move parts of the dresses. One dress is covered in strands of photoluminescent thread, while the other has a base layer of glow-in-the-dark threads with fabric ribbons bunched over the top.

www.dezeen.com/2013/06/24/nowhereU nowhereUtwoUgazeUactivatedUglowUinU theUdarkUdressesUeyeUtrackingUyingUgao/

technology'and'academia'with'an'initial'bias'towards'more' and'quantum'optics,'and'applications'of'light'in'spheres' such'as'medicine'and'communications.'

has'subsequently'become'a'Gold'Associate'sponsor,'has' ball'is'now'in'the'court'of'the'lighting'community'to'create' issues'under'the'IYL'banner. According'to'the'prospectus,'IYL'will'‘promote'the'central'

role'of'light'in'science'and'culture,'the'importance'of'lightX '‘An'International'Year'of'Light'is'a'tremendous' opportunity'to'ensure'that'international'policymakers'and'

president'of'the'European'Physical'Society'and'chairman' opportunity'to'raise'global'awareness'of'this.’

For)full)details)go)to:)www.light2015.org/

of'the'Year'title'following'a'close'contest'

on'the'IYL'agenda'was'largely'a'symptom'of'the'fact'that'we' all'take'light'for'granted.'

2015'will'we'know'whether'the'balance'was'suitably'addressed.' closely'with'RIBA'and'if'we'can'make'some'progress'with'them' buildings'and'the'IYL'can'help,'so'much'the'better.'But'we'need' being'important'in'all'its'guises.' Where'our'role'as'a'sponsor'is'concerned,'for'an' International'Year'of'Light'to'be'promoted'without'the' minded'people'to'our'membership. Brendan)Keely,)SLL)secretary,)outlines)some)of)the) society’s)plans)for)IYL)2015

The'society'is'supporting'the'Unesco'International' Year'of'Light'2015'in'recognition'of'the'role'light'plays' in'society,'to'promote'awareness'of'lighting'in'the'

profession'and'industry'as'a'whole,'as'well'as'the' members'of'the'society.

in'liaison'with'the'Institute'of'Physics'(IoP),'the'UK' Steering'Committee'and'the'European'Physical'Society' on'the'website'of'the'IYL'2015'along'with'educational'

This'will'enable'the'society'to'reach'further'than'its'

organised'by'Italian'lighting'designer'Chiara'Carucci'

Fresnel'lecture'at'the'Royal'Institution'in'March,'and'an'

will'be'jointly'hosted'by'the'professional'lighting'bodies' operating'in'the'UK.

One'of'the'IYL'2015'themes'is'the'Empowerment' president'half'way'through'the'year,'Liz'Peck,'as'will' the'ILP,'IALD'and'RIBA.'This'will'help'reinforce'the'role' of'women'in'lighting.'The'society'will'also'continue'to' strengthen'links'with'RIBA'and'encourage'collaboration' between'the'lighting'and'architectural'professions.

All'professional'bodies'will'promote'light'and' lighting'applications'to'schools'through'Stem'(science,' technology,'engineering'and'maths)'and'other'

the'winner'of'the'Jean'Heap'Bursary,'which'will'enable' the'industry'and'the'society’s'members.

Making history come alight

The SLL will mark the IYL in a unique and memorable way. Liz Peck explains the plan to light UK Unesco sites

One'of'the'things'I'enjoy'most'about'being'part'of'the'SLL'is'

At'SLL'council,'we'also'formally'bring'together' Hong'Kong,'Australia'and'the'Middle'East.'It’s'an'opportunity' for'sharing'ideas'and'for'our'members'to'feed'into'the'

they'are'based.'It’s'fair'to'say'council'is'an'eclectic'mix'of' different'skills'and'experience.

trains'preXbooked,'it'usually'means'there’s'time'for'a'drink'

beer,'crazy'ideas'are'sure'to'arise'and'so'it'was'last'autumn' when'Dan'Lister,'Rhiannon'West'and'I'started'discussing' the'possibility'of'doing'something'amazing'for'the'Unesco'

to'how'light'transforms'and'can'breathe'life'into'our'history.'

Perhaps'we'could'illuminate'historic'sites'across'the'whole' of'the'UK'and'Ireland,'for'one'night'only?'After'all,'the'SLL'has'

young'people'to'understand'lighting'equipment'and'lighting' shouldn’t'be'too'hard,'should'it?'

After'some'research'on'sites'which'are'less'wellXknown,' suitable'site'in'Northern'Ireland.'We'were'thinking'how'cool'it' would'be'to'light'up'Giant’s'Causeway'and'then'remembered' far'more'WHSs'in'the'UK'and'Ireland'than'we'had'realised.' While'they'may'differ'in'architecture'and'location,'the'common' theme'of'being'UnescoXprotected'should'inspire'plenty'of' interest'and'enthusiasm.

site,'suppliers'to'help'out'with'equipment'and,'in'some'cases,' we’re'going'to'need'some'power'as'well'as'distribution.'Most' important,'though,'we'want'the'industry'to'engage'with'the' project,'be'a'part'of'it,'help'us'to'create'something'truly'special' to'capture'the'public’s'imagination'and'attention.

So,'the'plan'is'to'illuminate'10'sites'next'autumn.'These'will' may'be'some'reticence'from'certain'parties'about'allowing' equipment'and'electricity.'Personally,'I'can’t'wait'to'read'the' health'and'safety'statement'for'Giant’s'Causeway.

brought'pledges'of'support'from'a'number'of'designers'and'

List)and)locations)of)potential)sites

Being'the'SLL,'we'also'want'this'to'be'an'experience'and'

Each'site'will'present'different'issues'and'some'will'be' more'challenging'than'others,'but'there'was'a'method'in'

for'possible'inclusion'(currently'18).'We'know'that'some'will' restrict'access,'and'we’ll'only'include'one'of'the'four'sites'in'

be'already'lit,'such'as'Durham'Cathedral,'along'with'the'more' extreme'sites'on'the'coasts'of'Scotland,'Ireland'and'southX west'England.'The'sites'are'all'eminently'doXableh'we'just' need'some'people'and'some'kit'and'someone'to'be'willing' to'projectXmanage'each'site.'

place'(or,'in'the'case'of'the'cities,'identify'some'buildings'not' please'let'us'know'as'we'want'the'process'to'be'as'smooth' sites,'just'let'Brendan'know'(bkeely@cibse.org).'

Now'we’re'into'2015,'we’re'looking'to'get'things'rolling'as' we’ll'need'to'identify'the'kit'we’d'like'for'each'site'and'then'chat' up'some'manufacturers'to'help'us'out.'It’s'all'exterior'lighting' but'if'you'work'for'an'interior'product'manufacturer,'you'can' with'designing'one'of'the'sites.'There’s'lots'to'be'done'but'by' uniting'the'industry,'we'know'we'can'create'something'that'truly' symbolises'how'we'can'use'the'IYL'to'draw'public'attention'to' the'brilliant'medium'of'light.

I'can’t'wait.'Who’s'joining'us?

Playing to the gallery

thinking have radically reshaped guidance in this sphere

a gloomy space, no one likes not being able to read information labels and, we hope, no one wants objects so brightly lit that they fade away before the next generation has a chance to see and appreciate them.

at why it is important to consider the objects, the display space and the operation of the building when creating a successful lighting strategy.

the interior of the room or display space where the exhibits are to be viewed. Some spaces are plain and simple white boxes – a more recent trend, with their own lighting problems – but many are architecturally interesting spaces or historic rooms that deserve to be well lit in their own right.

the exhibits. Here the guide examines ways to select and contrast with background and lighting levels, but also glare and practical issues such as access for maintenance.

material degradation chapter where we go through how light and heat can fade and physically degrade material types within

be on permanent display, even at the minimum lighting level for good perception of detail and colour: 50 lux.

Daylight and electric lighting are the subject of the next two chapters, both as individual light sources and when combined.

and at the control of daylight through typical side windows in varieties of lighting equipment and lamp types in common and sometimes not so common use.

either from outside the case or from within. Often the standard lighting solutions offered by some case manufacturers leaves a lot to be desired and we hope this chapter will encourage all involved in showcase lighting to improve the situation.

running costs.

Easy control leads to better use of the lighting, as well as happier clients and room attendants. It also leads to good energy and running cost savings with unnecessary lighting avoided when the public are not using the space.

Access for maintenance is particularly important in museums and galleries as not only do you have the normal safety issues with working at height but you also have to consider possible danger to the exhibits themselves.

Wallace)Collection:)the)chandelier)is)the)visible)source)of) ambient)lighting,)while)illumination)to)the)wall)and)objects)is) hidden)in)the)ceiling)detailing)(KSLD)

Water)Hall,)Birmingham)Museum)and)Art)Gallery:)a)purposeUdesigned)lighting)structure)is)suspended)below)the)historic)ceiling)(Arup)

have seen so many changes in museum lighting that it has overtaken by various transitions and transformations before it has made it through the editorial and approvals process.

lighting in the conservation environment published by the CIE

that causes damage. It also introduced a new category of objects to allow for those that are so sensitive that even at the low lighting levels used for very vulnerable exhibits they cannot be left on permanent display without suffering unacceptable levels of damage.

we have seen the extraordinary development of LED lighting technology. Back in 2005, LEDs were an interesting gadget that had very limited application in museums with the exception the subsequent drafts has entailed a total rewrite for the

as the principle light source that is now likely to be considered for museum lighting.

Conversely, we have seen a succession of European EcoDesign legislation that has changed the landscape of the for withdrawal of conventional incandescent lamps was set.

historic houses, which are also covered in LG8. In 2013 the amusingly named DIM2 regulations started to deprive us of the low voltage tungsten halogen lamps that have been our weapon of choice for museum lighting over the past 30 years.

now more of a historical note than the detailed and currently to change and this edition of LG8 is very likely to have a considerably shorter life than its long-lived forebear. LG8 has to serve a broad audience. Although widely considered to be the prime source of information for professional lighting designers it also has to provide approachable and useful information for a broader audience. It is also a primary resource for people in many professions spanning the museum world who are looking for a sound basis on which to develop lighting strategies and briefs for

History)Gallery,)Birmingham)Museum)and)Gallery:)LED)lighting) within)cases,)structures)and)at)high)level)provides)lowUenergy,) lowUmaintenance)lighting)throughout)(LD&T)

guide covers all the aspects of lighting in museums with due reference to other Lighting Guides where appropriate. Museums have not escaped the challenges of the current of revenue. As budgets and grants are put under pressure, operating costs are under increasing scrutiny. Lighting is, of course, a major energy user in most museums so again we anticipate LG8 will be referred to by facility managers and

prevent any really poor decision-making that would result in bad lighting or, even worse, potentially increasing damage to objects by inappropriate lighting

Setting the scene

Based on her winning paper, Daylight-Art-Atmosphere, Young Lighter of the Year Janna Aronson looks at how natural light can be translated from visual

Kevan Shaw (chair)

John Fitzpatrick (technical secretary)

Linda Bullock (Linda Bullock Conservation)

Stephen Cannon-Brookes (CB Lighting)

Christopher Cuttle (consultant)

Arfon Davies (Arup Lighting)

David Loe (consultant)

Boris Pretzel (Victoria and Albert Museum)

Devki Raj-Guru (LittleFish Lighting, USA)

John Roles (Leeds Museums)

David Saunders (British Museum)

Mike Simpson (Philips Lighting)

Manchester)Art)Gallery:)mixed)media)are)lit)at)appropriate)lighting)levels)between)50)and)150)lux)(LD&T)

Imagine entering a museum in Berlin, Germany, displaying an art exhibition from another part of the world, and giving visitors

1 – a physical and spiritual transition zone – could act both as an introduction and homage to the art exhibition itself.

Unique architectural lighting design for museum buildings is of great importance for any art collection. Of course the art exhibition space is the main focus of attention. But to create an outstanding experience, the transition zone between outside and inside can be used as an important mediator.

Daylight-art-atmosphere – these three important terms combined as one expression developed into the following research question: is it possible to interpret daylight atmospheres, captured in visual art, as a lighting design concept for a museum foyer?

Daylight has a strong impact on human beings because it is essential for life and living. Our traditions, habits and cultures are strongly connected to natural light and this

Since the beginning of humanity we have strived to capture by sketches, paintings, sculptures and the more modern photographic medium.

As stated by Dr Margaret Livingstone, a professor of and red can change so dramatically that you might wonder

you want to see what an artist saw while painting a picture, you should view the painting under the same level of light he 2

the artist worked is worth considering due to the different appearances of natural light.

to separate because even if the brightness is the same in terms of contrast, our visual system perceives colours differently when it comes to brightness.

One example is given in the painting Impression, Soleil Levant (Impression, Sunrise) by Claude Monet (Fig 1). Our attention is driven to the perceived brighter spots in a scene, in this case the sun. Looking at the same painting in grey scale (Fig 2), it is surprising that the actual level of brightness of the grey-blue sky and the orange sun is exactly the same. 3

that part of our visual system that processes information about movement and position.

Monet was aware of this process in visual perception, which made him use the exact same amount of pigments for the different colours in his painting to create the effect of a vibrating sun – the impression he experienced.

Fig)1:)Claude)Monet,)Impression,)Sunrise,)1872,)original

Fig)2:)Painting)in)grey)scale)(Livingstone,)M.)Vision)and)art,)the) biology)of)seeing.)Abrams,)New)York,)2002)

three basic lighting principles – ambient luminescence, focal glow and play of brilliants – that are still in use nowadays. Kelly describes the three principles by a mixture of observations from nature during the day and applications of 5

situation but also separately.

constantly changing through the day, were translated by Kelly into static qualities. But today, due to technological probably consider a fourth lighting principle which could be called dynamic light.

dynamic scene setting is part of the design job. Dynamic light is always present in natural light, which is never static; changes of intensity and colour temperature

change because daylight is so all-pervasive there is little 6

Fig)3U6:)Foyer)scheme)showing)dynamic)lighting)–)pulsating)sun

From an architectural point of view, a foyer in a museum can be seen as the link connecting outside and inside as well as a geographical location and the exhibition.

developed for two different exhibitions, featuring two very different artists: Claude Monet, the impressionist painter, lighting design concepts are based on two-dimensional of daylight atmospheres into the three-dimensional space coming from the exhibition entrance into the foyer, symbolising the importance of the exhibition room behind the wall.

Fig)7:)Claude)Monet,)Impression,)Sunrise,)1872,)analysed)with) Richard)Kelly’s)lighting)principles

dynamically decreasing and then increasing, so the effect of the pulsating sun is created by means of the architectural

of natural light changes from a cold, bluish sky light and a warm orange sunlight to a more neutral white light towards the break of day.

visual art and the three-dimensional space is that the foyer gives more than just one impression. It is also necessary to design, shifting colours and increasing brightness, the painting can become alive and the visitor is able to experience the art in a new dimension.

For the exhibition of Nick Brandt, the lighting design for the foyer picks up on the visual language Brandt uses in his photographs – layers of light, shadow and texture.

are interpreted by a combination of light and contrasting in the room, layers of bright and dark surfaces interact in different ways with each other.

photographs to seven lighting techniques derived from nature

Karolina M Zielinska-Dabkowska (Fig 8).

Backlighting in the photographs is interpreted in the

Fig)8:)Four)of)seven)lighting)techniques)(Zielinska,)KM.)Techniques) for)enhancement)and)visual)change,)understanding)the)experience) and)effects)of)lighting)design.)PLD)Magazine,)Jan/Feb)2006)

Fig)12:)Diagram)indicating)layers)of)interpretation)of)daylight)atmospheres)in)the)museum)by)artist,)lighting)designer)and)visitor

foyer as a backlit wall with diffused light. People passing by in front of the wall are reduced to silhouettes – the same effect

the animals and landscapes is abstractly transformed into the movement of visitors in the gallery space but also the factor of time is considered: the picture of the stage depends on the visitors acting in the foyer space.

From different positions in the foyer the visitor will experience

angle creates a completely different impression of natural light compared to Berlin, where the sun is at a lower angle.

when entering the foyer from the external environment, a strong direct light from the ceiling can create the effect of top lighting/ downlighting (Fig 10).

particles are captured. A similar sense of light bouncing behind translucent surfaces in the air can also be created by smoke

nothing until interrupted. Light is invisible until interrupted by a 7

conclusion is that such translations from the visual arts into a

well as an exhibition visitor (Fig 12).

I believe that the creation of daylight atmospheres in a emotional connection between visitor and art.

1. magazine, Jul/Aug 2006, No 50, p57.

2. Livingstone, M. Vision and art: the biology of seeing.

3. Ibid.

5. the illumination of modern architecture. Yale University Press, New Haven and London, 2010, p31.

6.

7. Kelly R. Statement to Mrs Edward Emerson, editor of the Bulletin, after a talk at the Garden Club of America

Daylight-Art-Atmosphere

Veronika Labancova, Isometrix perception by human beings

James Duff, Arup

An objective metric to determine subjective lighting adequacy?

LuxLive, ExCel on 20 November

Focal&Glow Ambient Luminescence

Play&of&Brilliants

Measure for measure

Carlile, along with circadian rhythms, road lighting and daylight

Light distribution is an important element in creating interest, researched variable. In his editorial, Boyce calls for more research to be undertaken into this area, suggesting possible funding by large-scale end users.

Discussions on daylighting standards are currently concerned with replacing daylight factors with climate-based

Instead of concentrating on numerical methods, daylight simulation should be investigating new, non-numerical measures, he argues, providing the power to look at varying luminance patterns, extreme values and complex control systems behaviour, providing a creative tool for daylight design.

Smet look at the desirable attributes of a metric, summarise proposed new lighting metrics, and consider whether they may lead to better lighting if adopted.

Barroso et al propose a set of metrics for characterising lighting conditions from a circadian perspective, with a direct application in clinical studies investigating light and health. In the same area, Bellia et al evaluate the circadian impact of that above 600 lux the CS increase is small, while between 50-

Artful illumination

The Lux Award-winning Reid Building at the GSA is a study in lighting technique

different perceived atmospheres, they discovered, and they also found marked gender differences for some of the scales used.

luminance in night-time driving conditions. Investigating the visual

in a decrease in the variation in the mean luminance. Also on road lighting, Davoudian et al studied the effects of disability glare from veiling luminance. Using a target detection

of veiling luminance was lower than expected from contrast loss. illuminance levels between external and internal spaces. For people with special lighting requirements, such as the elderly,

suggest the design of transitional spaces needs to consider removing visual barriers, taking into account factors such as the Becker and Becker propose a sky vault, intended for use

sky vault model has 20,000 cells making it suitable for use in massive computational assessments.

Nehdi et al investigate the dimming of an HPS lamp through

showed a 50 per cent dimming level could be achieved with stable operation and no observed acoustic resonance.

HPS lamp with a pulsed power supply in order to improve the the lamp could be widened, offering an improvement to the CRI. Cai et al demonstrate a novel LED bicycle headlamp with illuminance, meeting the K-mark regulation, while also providing additional ground illuminance

Lighting Research and Technology Vol 46, No 5, Oct 2014

Contents

Editorial: Light distribution – a missing variable Peter Boyce

Opinion: Climate-based daylight modelling or daylight factor?

Peter Tregenza

summary PR Boyce and KAG Smet Metrics of circadian lighting for clinical investigations

A Barroso, K Simons and P de Jager of different spectral power distributions L Bellia, A Pedace and G Barbato

A study of atmosphere perception of dynamic coloured light

HH Wang, M Ronnier Luo, P Liu, Y Yang, Z Zheng and X Liu

Combined eye-tracking and luminance measurements while driving on a rural road: towards determining mesopic adaptation luminance C Cengiz, H Kotkanen, M Puolakka, O Lappi, E Lehtonen, L Halonen and H Summala

Disability glare: a study in simulated road lighting conditions N Davoudian, P Raynham and E Barrett

vision barriers in ageing CM Lasagno, LA Issolio, AE Pattini and EM Colombo

Sky vault partition for computing daylight availability and shortwave energy budget on an urban scale B Beckers and P Beckers

Dimming control by variation of the switching frequency for high-intensity discharge lamps MN Nehdi, H Elloumi, W Nsibi, A Chammam, A Sellami and G Zissis Behaviour of a high-pressure sodium lamp fed by a pulsed power supply W Nsibi, MN Nehdi, A Chammam, H Elloumi, A Sellami and G Zissis

with additional ground illumination J-Y Cai, Y-C Lo, S-T Feng and C-C Sun

A new addition to the Glasgow School of Art, the Reid Building, opposite the renowned Mackintosh building, has two basement

of double-height studios, lecture theatres and workshops. An extensive use of natural light and a daylight-linked control system have contributed to the building gaining a BREEAM Excellent rating.

and daylighting advice, providing technical support for the daylighting design, which was a crucial consideration in the studio and workshop spaces.

assessed the environmental impact and the effect of the new studios in the Mackintosh building. appropriate light distribution and output – while keeping energy usage down – but also met the minimal aesthetic brief.

cladding system. After dark, the ambient light allows the activity inside to be visible and for the movement of the occupants to animate the facade.

Reid Building, Glasgow School of Art Arup

Steven Holl Architects

Education and Healthcare Lighting Project of the Year

2015

27)January

(ILP'training'course)

Venue:'BRE,'Watford

29)January

SLL'Masterclass:'Light'for'Life Location:'St'James’s'Park,' Newcastle'upon'Tyne www.sll.cibse.org

10)February

CIBSE'Building'Performance'Awards' 2015'(including'new'lighting'category)

Park'Lane,'London'W1

10U12)February

Light'School'at'the'Surface'Design'Show

supported'by'the'ILP)

Venue:'Business'Design'Centre' Islington,'London'N1

24)February

How'to'be'Brilliant'with: Florence'Lam,'global'lighting'leader,'Arup'

Venue:'ACDC'Lighting'Studio,'London'N1 Time:'6.30pm jo@theilp.org.uk

26)February

SLL'Masterclass:'Light'for'Life Location:'Leeds'City'Museum,'Leeds www.sll.cibse.org

Until)1)March

24:00:00

Foyer'exhibition'curated'and'hosted'by' Arup'on'light'and'light'technology' in'the'modern'world

Venue:'Arup,'Fitzroy'St,'London'W1 www.arup.com

10)March

we'light'and'look'at'today'depends' on'what'he'said

Venue:'Royal'Institution,'London'W1 www.sll.cibse.org

11)March

Fundamental'Lighting'Course (Organised'by'the'ILP)

Venue:'Regent'House,'Rugby jo@theilp.org.uk

19)March

Lighting'Design'Awards Venue:'London'Hilton,'Park'Lane

23)March

How'to'be'Brilliant'with: Michael'Grubb,'Michael'Grubb'Studio

Venue:'ACDC'Lighting'Studio,'London'N1 Time:'6.30pm jo@theilp.org.uk

24)March

Ready'Steady'Light Location:'Rose'Bruford'College' Sidcup,'Kent www.sll.cibse.org

26)March

SLL'Masterclass:'Light'for'Life Location:'Edinburgh'Castle,'Edinburgh www.sll.cibse.org

30)April

SLL'Masterclass:'Light'for'Life Location:'Watershed,'Bristol www.sll.cibse.org

10)March:)200)Years)of)Fresnel)(SLL)event),) Royal)Institution,)London)W1

14)May

SLL'Masterclass:'Light'for'Life Location:'Royal'Society'of'Arts,'London www.sll.cibse.org

21)May

SLL'AGM'and'Awards Venue:'RIBA,'66'Portalnd'Place,' London'W1 www.sll.cibse.org

29U31)May

Light'at'Night'(ALAN'2015) Location:'Sherbrooke,'Quebec,'Canada

Lighting)Masterclasses:) Masterclasses'are'kindly'

Thorn'and'Trilux www.sll.cibse.org

LET)Diploma'(in'association'with'London' from'www.lightingeducationtrust.org)or) email)LET@cibse.org

Mid)Career)College:'the'college' whole'spectrum'of'lighting'and'at' sites'across'the'UK.'Full'details'at' www.cibsetraining.co.uk/mcc)

LIF)courses:'details'from'John Hugill,'0208'529'6909,'or'email training@lif.co.uk