Page 1

AT THE FRONT Public-private initiatives are putting lighting at the center of various plans to reinvent urban environments in need of a boost.

SSL BUZZ A new whitepaper studying the effects of flicker and LED products has found a need for better drivers; Printing 3D LED luminaires.

SSL PROJECTS China’s Hanjie Wanda Square shopping center features an outof-this-world LED façade that certainly makes a statement.

NUMBER 32 • MAY 2014 www.architecturalssl.com

THE DARK SIDE OF

BLUE LIGHT Prudence Required. White LED light has brought large benefits: greater efficiency and better contained site lighting, for example. But some of the reported negative effects of its sometimes heavy blue aspect raise valid concerns. The good news is these issues can be addressed with careful design and selection. [Page 12]

ARCHITECTURAL SSL • 519 BRIARCLIFF ROAD, BOLINGBROOK, IL 60440

ARCHITECTURAL SSL • Chronicling the Advancement of LEDs in the Built Environment

SUDDEN IMPACT. In its relatively short life, solid-state lighting’s greatest influence has undeniably been on exterior lighting, whether it’s been the proliferation of functional street lighting, dynamic façades, or reinvented streetscapes bringing people back to urban cores.

09

SSL Buzz: Hospital room comforts patients using LED.

35

SSL Profile: London’s historic Reform Club renovates.

38

White Pages: Exploring app-based wireless controls.


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a division of

800.686.6672

w w w. no r al i g h t i n g .co m


µ±∞.14

42

24

18

BUZZ

PERSPECTIVES

31  Project Profile: The Santucci Justice Center rules in favor of LED.

07  Flicker Findings:

05 LED Insights

New whitepaper finds issues with drivers and flicker.

35  Project Profile: London’s historic Reform Club finds SSL has the right stuff.

08 Not Uptight About Uplight

So called “smart” controls and wireless controls are blooming. Are they ready for prime time? By Jim Crockett

LED breathes new life into historic UK crypt.

48 SSL Observed

11  Smart 3D Fixture Philips unveils a new smart fixture that’s also constructed via 3D printing.

02  • 05.14 •  ARCHITECTURAL SSL

With a focus on retrofitting inefficient systems with new techology, lighting designers are needed more than ever to ensure lighting quality. By Kevin Willmorth

“The enire world of lighting is on fire, complete with the din of Nero screeching over the howling of marketers and legislators. If the blowing winds have you feeling overwhelmed, you’re not alone, but those who see change as an opportunity stand to be the exception.”

www.architecturalssl.com


35

FEATURES

DESIGN & PRODUCTS

12  Market Setting Feature: Under the Microscope: Blue Light

38  White Pages Wary of wireless controls; Chipon-board arrays.

Does the light produced by LED sources contain enough blue light to threaten the growing tempo of SSL? Opinions and research differ, but as the debate crescendoes, one has to decide if it’s a case of good music gone bad, or simply unfiltered static. by Kevin Willmorth

18  At the Front: Illuminating the City Center In a public/private effort to enhance the built environment, new lighting—often dramatic, certainly stylish—is being woven into the urban fabric, transforming previously static neighborhoods and districts. by Vilma Barr

42  Advances Sports lighting, indirect linear, floodlights, spotlights, theatrical spots, modules and arrays.

Architectural SSL, Vol. 8, No. 2 (ISSN# 1941-8388) is published five times per year by Construction Business Media. Publication Office: Construction Business Media, 579 First Bank Drive, Suite 220, Palatine, IL 60067; 847 359 6493; www.architecturalssl.com. (Copyright © 2014 by Construction Business Media) POSTMASTER: Send address changes to Architectural SSL Magazine, 519 East Briarcliff Road, Bolingbrook, IL 60440.

24  Featured Project: Hanjie Wanda Square Perhaps setting the stage for a new generation of buildings, the spaceage vision of architect Ben van Berkel is certainly out of this world. by Vilma Barr

www.architecturalssl.com

ARCHITECTURAL SSL  • 05.14 •  03


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Coµµ§∑T±R∞

NUMBER 32  •  MAY 2014  www.architecturalssl.com Gary Redmond Managing Partner Director Publishing Operations gary@architecturalssl.com Tim Shea

Managing Partner Director Business Development tim@architecturalssl.com

Dave Pape

Vice President Director, Art & Production dave@architecturalssl.com

EDITORIAL Jim Crockett 847 359 6493

Editorial Director jimc@architecturalssl.com

Kevin Willmorth

Editor kevin@architecturalssl.com

Cuckoo for Smart Control First, Kevin said he’s in “total agreement” that

Megan Mazzocco 847 359 6493 CONTRIBUTING EDITORS Vilma Barr Barbara Horwitz-Bennett Ellen Lampert-Greaux Chuck Ross Jan Bottiglieri

Senior Editor megan@architecturalssl.com vilma@architecturalssl.com barbara@architecturalssl.com ellen@architecturalssl.com chuck@architecturalssl.com Copy Editor

DESIGN & PRODUCTION Dave Pape Art Director dave@architecturalssl.com Lauren Lenkowski

Associate Art Director lauren@architecturalssl.com

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Graphic Designer alex@architecturalssl.com

ADVERTISING SALES Gary Redmond 847 359 6493 gary@architecturalssl.com

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Jim Führer 503 679 5409 jimf@architecturalssl.com

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SUBSCRIPTION INQUIRIES There is no charge for subscriptions to qualified requestors in the U.S. All other annual subscriptions will be charged $39 for standard delivery or $55 for air mail delivery. For subscriptions, inquiries or address changes, call 630 739 0900 ext. 100. A Publication of Construction Business Media

Member:

An axiom that holds a lot of water, ‘be careful what you wish for,’ certainly holds true regarding the Pandora’s Box that is ‘smart’ lighting today.

an open-source solution is critical to the future of wireless controls. At the same time, he called the state of wireless controls an “utter mess.” Daintree’s system, for example, is open source, and founded on the ZigBee standard, says Kevin. The problem is that it’s not the only option, and

I had a “Black Forest”-for-the-trees moment the

by no means is ZigBee the unifying force it might

other day. In riding out the PR waves that crest

have been.

with the biannual convening of Light+Building

Controls following the EnOcean Alliance stan-

in Germany, I was struck by the iconography of

dard, on the other hand, don’t run at the same

the show’s name and logo. Specifically, the “plus”

frequency as ZigBee, so by definition they are

symbol reminded me that integration of these

incompatible without the addition of “gateways”

two often disconnected ideas is absolutely criti-

to link the two. Further confusing matters is the

cal for the design community to achieve any kind

fact that several new LED products are using

of high-performing, feel-good spaces (my per-

Bluetooth, which (by design, says Kevin) is

sonal definition of a successful lighting scheme.)

incompatible with any other wireless network. iOS

Back to the news from the show. One item

and Android devices can operate at any number

that seemed as novel as the introduction of the

of frequencies, but their Apps can use any com-

cuckoo clock—which originated in Germany’s

munication protocol they desire. Others, he says,

Black Forest region—came from Xicato, and

use Z-wave, a residentially focused standard

related to its intelligent XIM module (see page

that operates by design under 1GHz frequency,

43). The company essentially builds sensors and

specifically to avoid interference with Bluetooth

smartphone technology directly into the module,

and ZigBee.

theoretically enabling luminaire manufacturers

Meanwhile, computer wireless networks

to avert the need to build modules with complex

generally operate at 2 to 5GHz, Kevin adds, so

sensing and controls interfaces.

coupling them with lighting or building controls

My excitement level was further percolated by

is separate, requiring additional hardware (more

a release announcing that wireless controls com-

gateways) to connect to another network oper-

pany Daintree Networks was partnering with

ating in the appropriate range. Thus, Kevin says

electronics giant LG to create an integrated LED

the acceptance of a uniform standard around

lighting solution with built-in wireless control

this, or any other open standard, is the key. “As

for commercial settings. The big-picture intent,

long as a broad range of product manufacturers

of course, is to create a means to reduce the

pursue their own disparate paths, there is no

overhead of wireless lighting control—Yes! (in

such thing as a truly open and integrated archi-

full Marv Albert voice).

tecture on which to build a reliable, sustainable

Both of these solutions seem like important

wireless lighting control system,” he concludes.

pieces of the puzzle. More importantly, their

Hmmmm… Sounds like we need a whole series

launch shines a beam on the idea that we need

exploring this issue. Good news! We’re doing just

symbiosis and intelligence between light sources

that in the White Pages. Turn to page 38 and

and the buildings that host them. Still, like the

find out more.•

long-time sports broadcaster referenced above, I’m easily excitable, and I recall that old axiom: “be careful what you wish for.” I asked our resident guru Kevin Willmorth for some feedback on where wireless control is, where it’s going, and where it needs to go.

www.architecturalssl.com

Jim Crockett, editorial director

ARCHITECTURAL SSL  • 05.14 •  05


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New Study: Drivers Key to Fighting Flicker NEW WHITE PAPER DISCOVERS THAT DRIVERS ARE KEY TO FLICKER ISSUES

Driver Output Ripple Current

Flicker is a factor all lighting technologies look to avoid—except, perhaps, candles at a dinner table. Minimizing flicker is especially important for a technology as new as LED-based illumination, now at the cusp of mass-market accepWaveform

tance. According to a new white paper published

Waveform average

by Cree on the topic, “Flicker Happens, but Does it Have to?” by Shawn Keeney and Robert Highley, better drivers are the key to reducing the potential for LED flicker problems.

Source: Cree white paper, 2014

The paper is based on results based on Cree’s work of its thermal, electrical, mechanical, pho-

ABOVE: These two waveforms illustrate the relationship between driver output (top) and resulting light output from a connected LED (bottom). In this case, the driver ripple current fluctuates 46%, with a resulting percent flicker of 36% in the LED.

tometric and optical (TEMPO) testing service, which helps luminaire manufacturers perform quality assurance testing prior to a fixture being submitted for LM-79 certification. Of course, the starting point for evaluating any lighting characteristic is to have a standard against which performance can be measured. As the paper’s authors point out, the closest

Measured Light Output

document to an official set of flicker criteria is the RP-16-10 standard from the Illuminating Engineering Society (IES). The IES defines “percent flicker” as a relative measure of cyclic variation in amplitude of a light source, and establishes a “flicker index,” as a measure of cyclic variation that takes into account the shape of the light source’s wave form. The latest Energy Star requirement for lamps, set for a Sept. 30, 2014 launch, adds both percent flicker and highest flicker index to the list of data that manufacturers must report, but it doesn’t Waveform Waveform average

specify a maximum limit for either criteria. However, the Alliance for Solid-State Illumination System and Technologies (ASSIST) has established an acceptable maximum of 20% flicker at

Source: Cree white paper, 2014

ABOVE: Results for performance by product category indicate wide variability, yet most values fell within an acceptable range, with just a few outliers in each category. Two of four reported MR16 results are actually for the same product under different operating conditions: with a 12V DC input, percent flicker was only 5%, but with a 12V AC input, it jumped to 76%.

100Hz, and 30% flicker at 120Hz. To date, Cree’s TEMPO service has tested hundreds of SSL luminaires for flicker, focusing

Z

www.architecturalssl.com

CONTINUED ON PAGE 08

ARCHITECTURAL SSL  • 05.14 •  07


CONTINUED FROM PAGE 07

Y

especially on the ripple frequency occurring on the LED drivers’ output, which is typically twice the input. This result is important because an LED’s light output correlates closely with the driver’s output waveform. Approximately two-thirds of the 103 products tested for this white paper demonstrated a driver output frequency of either 100Hz or 120Hz, depending on the connected AC line’s frequency. Roughly a quarter of tested products had drivers producing a smooth, filtered DC output, regardless of input-voltage frequency, and less than 8% had outputs between 120Hz and 10kHz. A combined average of 70% of the products operating at either 100Hz or 120Hz had acceptable percent-flicker ratings. In comparison,

HISTORIC STRUCTURES: GUILD HALL CRYPTS

all products with DC driver output fea-

Heavenly Marriage

tured a percent flicker of 10% or less. What can luminaire designers do to ensure their products produce minimal

London-based dpa

flicker? Cree’s researchers offer sev-

Lighting Design recently

eral suggestions:

took home honors in the

 If a custom driver is being devel-

Heritage category in the

oped, capacitance should be added to

2014 Lighting Design

its output to filter out the AC ripple

Awards for their re-lighting of the crypts below

component. One caveat: this strategy

Guild Hall in London.

could result in decreased system reli-

More efficient, predominantly LED sources,

ability, especially if low-quality capaci-

replaced tungsten wall sconces. The unlensed,

tors are used.

column-mounted fixtures uplight the vaulted

 If a commercially available, off-the-

ceiling, and a single, medium-beam downlight

shelf driver is used, designers should

accentuates the column. The new LED sources

check for those with minimal ripple

not only reduced energy costs and the need for

current—if that data isn’t provided,

regular maintenance, but also ensured a long

designers should seek it out.

lasting, and more visually consistent installation,

 Flickering can also result from

according to dpa.

incompatibility with attached dimming

For more on the project, visit the SSL Interac-

and control circuitry; be sure to specify

tive section of architecturalssl.com, and specifi-

and verify that other system compo-

cally the “Topics at the Front” tab.•

nents are compatible and working correctly. Also, investigate loose wiring and other interconnection issues.

08 • 05.14 • ARCHITECTURAL SSL

ABOVE: Built in 1042, the crypts beneath Guild Hall are the largest medieval crypts in London. They also house the remains of a Roman amphitheater below the floor. The East Crypt is considered to be one of the earliest and finest examples of its kind. Currently used an events venue, lighting had to be functional, but also highlight the architecture.

www.architecturalssl.com


HEALTHCARE: PATIENT ROOM 2020

Lighting for Happier Patients Patient Room 2020 is a design prototype of a hospital room that incorporates advanced LED lighting, among other leading-edge technologies, to create a healthcare environment that’s both energy efficient and patient friendly. Osram Sylvania and its Traxon Technologies subsidiary worked with a team organized by NXT Health, a non-profit geared to improving patient and caregiver experiences through design. One of the most notable features created by lighting designer Rachel Calemmo of Christian Rae Studios, LLC, is the “halo” installation above the patient bed. A combination of cove and RGB board elements create soothing shifts of color that can be quickly converted to an exam light for medical staff, should the need arise.•

RETAIL LIGHTING: ROYAL PHILIPS LED SYSTEMS

Lost in the Store? An App for That Marketing doesn’t get more targeted than that provided by new technology developed by Royal Philips, for use with its LED retail lighting systems. The systems’ fixtures are networked, and can identify a shopper’s position in the store through use of a downloadable app on the shopper’s smartphone. Shoppers can use the app, now being piloted with retailers, to locate food items throughout a store. Retailers, in turn, can provide coupons and other offers and information related to a shopper’s exact location by tracking their progress throughout a store.•

www.architecturalssl.com

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PUBLICATION: LED LIGHTING AND CONTROLS

RETAIL LIGHTING: WALGREENS, CHICAGO

Getting Ready for Tomorrow

Aspirin and Sushi

“Transitioning to the Future,” written by Architectural SSL contribu-

A new flagship Chicago Walgreens store is sell-

tor Stan Walerczyk, covers a range of LED and related controls topics.

ing more than aspirin and antihistamines. The

Published by Fairmont Press, the book is written for the full range of

25,000-sq.-ft. space also offers a sushi bar, fresh

building professionals involved in engineering, purchasing and maintain-

pastries and bread baked on-site. The large-

ing interior and exterior lighting products. It looks at LEDs in the context

format store is one of the company’s first to

of other lighting technologies, with a special focus on human-centric

depend heavily on LED luminaires. Lighting

lighting design.•

designer Sharon Olsen of KSA Lighting tucked one-circuit track from ConTech into drywall coffers in the store’s ceiling, from which she suspended Gimbal-ring track fixtures incorporat-

V IS TA 15 0 0 S E R I E S S T E P L IG H T S

YOU DECIDE

IF YOUR DESIGNS NEED

POP

VISTA 1500 Series Step Lights with a Performance Optics Package (POP):

& Theodore Architects intended to help the store stand out in a competitive retail environment.•

Sleep Tight

» Optics can be hot aimed while installed to achieve your envisioned effect

Auto manufacturer

» 30˚ adjustment with the maximum candela from 25˚ to 55˚ below horizontal

Honda has big ideas for HOT A I M I NG R A NGE

» Multiple door options and face treatments: borders, louvers and sheer glass; customizable options and silk screening available » Extension rings to correct the positioning of optics and doors when housings are placed too deep in walls during installation

design created by Ted Theodore Jr. of Camburas

RESIDENTIAL: HONDA SMART HOME, UC DAVIS

» Sharp cut-off optics deliver precise light placement without glare

» LEDs from three up to larger nine up configurations

ing spot optics. The lighting concept is part of a

its battery electric vehicles, including exploring new ways the cars can become a part of our homes’ energy systems. The new Honda Smart Home on the campus of the University of California Davis tests a number of these ideas. LED lighting fixtures throughout the home can be tuned to promote residents’ natural

EXPERIENCE THE VISTA DIFFERENCE. Explore the possibilities right here: vistapro.com/1500series

circadian sleeping and waking patterns. For example, amber LEDs are used for nightlight fixtures— the luminaires provide adequate illumination for navigating the hallways in a color that won’t wake up residents the way blue light can.• 800-766-8478 | www.vistapro.com

Circle 05 VISTA PRO: 1/2 Pg. Island–Architectural Step Lights: Final 1/16/14

www.architecturalssl.com


TECHNOLOGY: 3D PRINTED LUMINAIRE

Hue Receives 3D-Printed Pendant Royal Philips has unveiled not only a new smart luminaire, but one that was created using 3D printing technology. The 3D-printed hue pendant and table luminaires were

AWARD WINNING DESIGN MEETS INNOVATION. IP66 Rated, High Quality Construction Fixtures & Control Options All In One Place. All by Acclaim Lighting.

co-created by globally renown design teams WertelOberfell and Strand + Hvass. “3D printing provides more freedom, control and even personalization when designing lighting products,” says Jan Wertel. “There are fewer bound-

. Optional Visor Available

aries for creativity with the hue techology as there are unlimited options to generate any mood or lighting effect. Combined, we have created the most advanced, digital technology for a functional, emotional and unique object.”•

DYNA FLOOD QUAD (QA/QW) . Quad Color Technology . Advanced Color Mixing (White Paper Available)

CONCEPT RETAIL: FORTNUM & MASON STORE

High Tea & Quick Shopping

For the first time in more than 300 years, British retailer Fortnum & Mason

File Name: ACCLA Color version with

opened a new store in the historic Kings Cross St. Pancras international

C/100 M/0 Y/0

gateway. The aim of the project’s designer, Universal Design Studio, was to capture the quintessential British spirit of the store, including a tea experience. Lighting designers Speirs + Major were tasked with creating

www.A c c l aim L ighting .com USA (HQ) EU - The Netherlands Asia - Hong Kong Singapore

spaces that would enhance customer experiences. The aisles that make up the space are framed by brick archways that have been softly uplit to reveal form and texture. Rows of suspended globe pendents, help draw eyes

Black version

C/50 M/50 Y/5

through the space to illuminated focal points on the end walls.• White version

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By Kevin Willmorth, editor

THE DARK SIDE OF

BLUE LIGHT Does the white light produced by LEDs contain harmful wavelengths in the blue spectrum? If so, as research suggests, is it enough to threaten the growth of the technology? The discussion surrounding blue light emissions has certainly crescendoed into a debate, but the answer is not a simple yes or no.

12  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


www.architecturalssl.com

The Blues Base Line

The Blues Physiology

The foundation of all phosphor converted white

Concerns over blue light effects include the

LEDs is the brilliant blue LED die, a GaN (Gallium

visual and non-visual functions, as well as the

Nitride) semiconductor. Depending on structure,

physiology of the eye. The health of the physical

these generate light at a wavelength of either

eye is foremost on the minds of researchers

405nm (violet) or 456nm (blue). Phosphors

concerned with aging and visual degradation

down-convert this narrow blue light to a broader

caused by long term blue light exposure.

visual spectrum (longer wavelengths). The

In the round table report Blue Light Hazard:

result is “white” light. However, a portion of the

New Knowledge, New Approaches to Maintaining

original blue LED light remains in the spectral

Ocular Health (Boulton, M et al, NYC, Essolor of

power distribution.

America, 2013), research on RPE (Retinal Pig-

Phosphor mix and density determines what

ment Eptithelium—the outer most cell layer of

color of white light is emitted and how much

the retina) indicates cell degeneration is greatest

blue light escapes. The light output of a typical

between 415nm and 455nm. This susceptibility of

4000K/80CRI LED includes less than 11% below

the cornea and retina to damage from blue light

460nm. This is similar to an 841 class T8/T5

radiation is well documented. In the article The

fluorescent lamp, where 14% falls below 460nm.

Effects of Blue Light on Occular Health (Kitchel

In comparison, a typical 3000K/90CRI LED emits

E., American Printing House for the Blind), long

less than 5% as <460nm blue. Conversely, the

term exposure to blue light at 441nm caused

phosphors used in a typical 5600K/65CRI LED

lesions on the retinas of rhesus monkeys.

generate 20% of its energy below 460nm, greater

While clinical data indicating issues with blue

than is emitted from metal halide and most

light and ocular health are significant enough to

fluorescent lamps.

warrant attention, most studies employ direct

>

ARCHITECTURAL SSL  • 05.14 •  13


view of light sources to isolate and study the specific spectral effects. In practical application, the light reaching the eye is reflected from surfaces of various colors (and spectral reflectivity) around the observer. Direct light sources are a small part of the visual field at varying distances. This suggests that the effects discovered in clinical studies over-state exposure in practical application, where emission of concentrated blue light is diffused. Impact of the Visible Blues The visual system generates our most apparent response to light—sight. In this, the spectral response range covers wavelengths between 400nm and 700nm. This is not linear—it follows a bell shaped curve with a peaks of 555nm (Photopic) and 507nm (Scotopic). At the tails (blue and red) visual response is very low. This is due to the filtering effect of the lens and cornea, and the response of the rods and cones of the retina. The filtering effect reduces the amount

CRI 5000K light sources. Additionally, the IES

of blue light (456nm) that reaches the retina by

PS-02-09 Position Statement “Use of Spectral

LOW CCT + HIGH CRI = GOOD

35%, and cuts light under 415nm by 98%. How-

Weighting Functions for Compliance with IES

ever, the lens of adults fluoresces at wavelengths

Recommendations” supports SEL (Spectrally

as long as 460nm, reducing visual performance.

Enhanced Lighting) as a method for delivering

In the round table report, David Sliney, MS,

equivalent visual performance at lower levels to

PhD, a consulting medical physicist in Fallston,

save energy.

Md., specifically noted that there is no evidence

The association conflict is founded in the

that short wavelength light has significant

erroneous assumption that blue light content

ocular benefit. On the contrary, sharpshooters

is necessarily greater in high CCTs. The studies

and others who demand very sharp outdoor

utilized high CRI (>85) fluorescent light sources,

vision often rely on blue-light filtering lenses.

which have limited blue light content. The

These lenses reduce the light scatter effect of

majority of high CCT/low CRI LED sources present

the atmosphere at short wavelengths, as well

significantly higher blue light content. For this

as eliminate the fluorescence that occurs in the

reason, associating the results of studies showing

When it comes to interior spaces, the rule of thumb is to use fixtures with the lowest CCT color and the highest CRI available to suit the application. Avoid, in general, luminaires with a CCT greater than 5000K, and a CRI lower than 80. Pictured is the Center for Mobile Propulsion at Aachen University of Technology in Germany. The facility uses Zumtobel’s Linaria decorative luminaires.

lens of the eye as the observer ages.

increased visual performance under high CCT/

Superficially, this seems to conflict with studies

CRI sources cannot be applied to high CCT/low

supporting higher CCT—read bluer—light as a

CRI LED products—which will reduce visual per-

means for increasing visual performance. In

formance due to excessive blue light content.

the study “A comparison of traditional and high

The Dark Sky Assn. also points to research

colour temperature lighting on the acuity of

indicating the movement toward blue-rich, low

elementary school children” (Berman, et al. 2006)

CRI/high CCT LED light sources as problematic.

visual acuity increased under high CCT sources.

In addition to fluorescence in the lens in adult

Further, AfterImage + Space produced the

eyes, blue light creates increased “sky glow”

study “Spectrally Enhanced Lighting Program

which interferes with visual performance. This

Implementation for Energy Savings: Economics

conflicts with the popular comparison of a high

Validation Study” (DOE, 2006) indicating a

pressure sodium to white LEDs at high CCTs in

correlation of visual performance under high

case studies of outdoor lighting retrofits. However,

14  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


photo-biological hazards of lighting products, with particular attention to those delivering a light in the 415nm and 460nm. The standard includes detailed measurement of intensity of the source, source size and exposure time variables, and classifies them by risk group. Further, IEC 62560 addresses LED retrofit lamps, IEC62031 addresses LED light modules, including blue light hazard measurements. Further, IEC/TR 62778 “Application of IEC 62471 to light sources and luminaires for the assessment of blue light hazard” includes guidance that is more relevant to general illumination, including factors of size and distance from the source, as well as the impact of CCTs on blue light content. ANSI/IES RP-27 and CES S009 also address these issues, including classification and labeling of light sources and lamps with an emission wavelength of between 200nm and 3000nm. A summary of the IEC and IES standards and recommendations can be found in the DOE Solidwith no effort to compare higher CRI, or lower

State Lighting Technology Fact Sheet—Optical

DARK SKY RULES APPLY

CCT sources in these studies to completely

Safety of LEDs (2013) on the EERE website. This

In outdoor environments, where low light levels are prevalent, follow Dark Sky Assn. recommendations and try to use lower CCT sources with the highest CRI possible. This significantly reduces blue light effects on visual performance and melatonin suppression effects. Pictured is the Raley’s station in South Lake Tahoe which uses Cree’s 304 Series recessed canopy luminaires.

define visual performance and qualify observer

provides an overview of the content of the more

preference, the anecdotal comparison proves

comprehensive standards, with the exception of

nothing more than an obvious preference for

risk group definitions. The fact sheet concludes

white light over dingy yellow light.

that there is no hazard from existing LED prod-

The frequently referenced 1941 Philips/Fruit-

ucts, at least from the perspective of the intensity

hoff study, and modern studies confirming it,

standards referenced. While this is good, it does

consistently indicate observer preference for

not address luminaire optical designs than

lower CCTs at low light levels. This is counter

intensify light distribution.

to the claims of outdoor retrofit marketers

Unfortunately, while the standards for testing

attempting to capitalize on the higher lumen

are well defined, most lighting products are not

output of high CCT/low CRI LEDs. The common

tested or classified.

use of commentary regarding the use of higher CCT sources in some countries is equally

The Blues Unseen

irrelevant. These preferences were formed

Beyond sight, the biological response to light

before LEDs and are unlikely to have considered

drives several non-visual pathways. One of

blue light content of low quality high CCT LED

these is the hypothalamus, which responds to

lighting. What others choose to expose them-

photoperiods for regulating circadian rhythm.

selves to without considering the consequences

The other is the pineal gland, which reacts to

does not constitute support for the use of high

light by suppressing melatonin production to

blue content high CCT light sources.

create a waking state. Other systems affected include the thyroid, pituitary and adrenal glands.

www.architecturalssl.com

Blinded by the Blues

Melatonin also plays a part in antioxidant activ-

Intense blue light concentrations are particu-

ity and the work of the immune system. While

larly troublesome. In an effort to define the

the hypothalamus generally responds to periods

relative hazards of intense blue light sources,

of light, melatonin regulation response efficacy

CIE 62471establishes a standard for measuring

is greatest between 424nm and 460nm. Further,

ARCHITECTURAL SSL  • 05.14 •  15


evidence indicates this response is not related

Human Circadian Sensitivity to Blue Light Emission

strictly to rod or cone activity, but involves a third photoreceptive pigment called melanopsin. Concern over blue light content is centered Human circadian sensitivity

on the close alignment of melatonin suppres-

Photopic sensitivity

sion response and LED blue light emission. In an

Blue-rich LED

article published in Science Daily (Sept. 12, 2011) researchers at the ISTIL-Light Pollution Science and Technology Institute in Italy, the National Geographic Data Center in Boulder, Colo., and the University of Haifa examined lighting used in outdoor lighting systems and concluded that metal halide generated three times the melatonin suppression of high-pressure sodium, and typical high-CCT LED products created five times the suppression response. They concluded simply “The current migration from the now widely used sodium lamps to white lamps will increase melatonin suppression in humans and animals.” The unanswered question is to what degree the effects are manifest beyond clinical studies? Also, melatonin suppression is not permanent,

BLUE LIGHT AND CIRCADIAN SENSITIVITY

nor instantaneous. Short exposures have mini-

The graphic, from a 2010 IDA report, shows the tight correlation of blue light emmision from a high CCT LED with human circadian sensitivity as noted by the melatonin suppression curve.

mal effect. When the light source is removed after a longer exposure, melatonin levels recover in less than 90 minutes. Further, conclusions of many studies appear to assume that those

lighting decision making. This can be practically

  Avoid use of LED arrays in patterns of

exposed to unwanted light are incapable of tak-

accomplished in several ways:

individual high intensity dots. The intense and

ing corrective action to avoid exposure prior to

  Use the lowest CCT LED color with the highest

directly focused rays of light produce the great-

sleep periods. Meanwhile, broader implications

CRI available to suit the lighting application—in-

est amount of blue light and glare to the eye,

of observed health issues in night shift workers

cluding avoidance of high CCT (>5000K), low CRI

reducing visual comfort and performance.

have not separated circadian disruption, work

(<80) sources altogether, and eliminate use of

The answer to the original question—Does the

assignment, stress, illuminance levels, and blue

blue-light rich products, such as those generat-

light produced by LED lighting contain enough

light presence with enough fidelity to make

ing >5500K at <65CRI.

harmful blue light to threaten the growing tempo

recommendations for corrective action. Since

  In outdoor environments, where low light

of solid-state lighting?—is not a simple yes or

moving back to incandescent or expanded use of

levels are prevalent, follow Dark Sky Assn. rec-

no. If care is taken in design and selection, LEDs

HPS indoors to avoid all blue light risk is imprac-

ommendations and use lower CCT light sources

appear to present no greater threat to human

tical, while all efficient light sources produce

with the highest CRI possible. This significantly

health or vision than other modern high effi-

some level of blue light, there is a need for more

reduces blue light effects on visual performance,

ciency light sources. But that does not mean that

focused research leading to practical recommen-

melatonin suppression effects, and supports

all LEDs are equal. Some emit significantly more

dation on this subject.

observer preference for warmer white CCTs at

undesirable blue light—while others present an

low light levels.

improvement over conventional sources already

Mo Better Blues

  Be cautious in selection of luminaires that

in use. Sacrificing a few lumens per watt to re-

Based on the combined concern over the effect

present large un-controlled emission surface

duce blue light emission would appear a prudent

of blue light on the eye—physical damage; the

areas for interior lighting. Looking at luminous

and worthwhile effort. This may prove to be an

impact on physiological response—melatonin

surfaces of luminaires presents the greatest

asset of solid-state lighting, and not a liability

and circadian; the reductive effect on visual per-

blue light contribution. Consider controlled or

at all, as the opportunity to shape LED light into

formance—lens fluorescence and haze; reducing

shielded optics to control this and the associated

favorable forms is far greater than is possible

the amount of blue light is a prudent approach in

glare of high lumen sources.

with conventional sources.•

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Circle 03 Circle 07


TOPICS AT THE FRONT

LIGHT AND THE CITY By Vilma Barr, contributing writer Infrastructure improvement

current urban revitalization trend

single elegantly lit structure, such

projects in the developed world

is often the result of successful

as the waterfront of the Brooklyn

have brought public attention, and

collaborations to bring people

Bridge (above), that becomes an

in some cases action, to the replace-

together in cities to live, work,

identifiable icon in its urban locale.

ment of aging bridges, highways

play and be entertained, in any

Cities such as Sydney, Chicago and

and water systems. Yet a more

combination of these interactive

Louisville have announced plans

organic, and often less costly, effort

activities. In today’s contemporary

for multi-block, public/private

to enhance the built environment

world, lighting provides the inter-

sector-funded improvements in the

is a growing public/private move-

woven, illuminated warp-and-weft

infrastructure and the commercial

ment to install new lighting into the

of the social and structural fabric

development that follows.

urban fabric. Style and excitement

that makes up the modern city.

Municipal officials are well-

are transforming previously static

Lighting changes can be as

aware that a strong tax base

neighborhoods and districts.

extensive as the nine-block,

is supported by the success of

Instead of being sparked by

$850-million mixed-use Kansas City

prosperous urban tenants serving

government-funded mandates, the

Power & Light District project, or a

the region’s population. Overall

18  • 05.14 •  ARCHITECTURAL SSL

  BROOKLYN BRIDGE PARK

Brooklyn Bridge Park will create an 85acre civic landscape, transformed from a post-industrial waterfront along the East River’s shoreline. Pier One, first of the phased sites completed, combines natural open and planted spaces. Above, event attendees occupy terraced steps and the lawns. Michael van Valkenburgh Associates are landscape architects for the overall project. Photo: Etienne Frossard.

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TOPICS AT THE FRONT

 City Streetscapes

Located along several blocks of Broad Street, to the north and south of Philadelphia’s white marble and granite City Hall, is the Avenue of the Arts,

Avenue of the Arts

home to numerous retail shops plus cultural, dining and arts venues. Color-

Philadelphia, Pa.

changing LEDs give the streetscape a lively coordinating visual identity during the evening hours.

Photos:

Here, looking north on Broad Street in the Avenue of the Arts—in a regis-

James Abbott, Barry Halkin

tered historic district that includes the Academy of Music, which dates from 1857—The Lighting Practice illuminated the facades of twelve buildings in a six-block area. For color-changing buildings, TLP used Color Kinetics Colorgraze, Colorblast, and Light System Manager as the controller, and wireless

A BALLET OF LIGHT

The Center City District of Philadelphia, a collective of private sector organizations that promotes the downtown area as a destination for arts and culture, sponsored the lighting of the façades of a dozen buildings along stretches of Broad Street. Design and programming by The Lighting Practice.

signal transmission by City Theatrical Show DMX.

illuminance levels create nighttime

Pew Charitable Trusts found that

perennially troubled school system,

environments that instill feel-

young adults are drawn to the city

and a soft job market—could lure

ings of safety and enjoyment that

“by its vibrancy, diversity, culture

half of those in the 20-to-34-year-

bring revenue to the city’s coffers.

and nightlife.” The 30-city survey

old group to relocate to communi-

Lighting that makes creative use

revealed six cities (see Table 1)

ties outside of the city center.

of today’s technology is key to at-

where the increase in the number

Lighting has more than done its

tracting residents and visitors into

of 20-to-34-year olds during a six-

part to visually improve the quality

urban areas.

year period was more than double

of life in these six cities and other do-

One primary target market

the median survey increase.

mestic and international urban cen-

spurring investment in downtown

The study’s authors expressed

ters. A review of significant recent

upgrades and improvements in

caution, noting that the boom,

projects to support this concept can

areas of population density is the

however promising, could be in-

be grouped into three categories:

growing number of young adults

terpreted as fragile. In some cities,

  City Streetscapes

who have moved into city neigh-

including Philadelphia, concerns

  Urban Renewal & Revitalization

borhoods. A study sponsored by the

about life in the city—crime, the

  Illumination of Iconic Structures

www.architecturalssl.com

TABLE 1. Growth in 20- to 34-year-olds (As share of overall city population 2006-2012)

City Philadelphia Boston Nashville Baltimore San Francisco Denver 30-city median

Change in % 6.1 % 5.7 % 5.6 % 5.4 % 5.3 % 5.0 % 2.7 %

Source: U.S. Census Bureau, American Community Survey, One-Year Estimates 2006-12. ©2014 The Pew Charitable Trusts.

ARCHITECTURAL SSL  • 05.14 •  19


TOPICS AT THE FRONT

 Urban Renewal & Revitalization

The Newstead Gas Ring is an iconic piece of Brisbane’s historical architecture, now becoming a hub of a major urban regeneration project. Planning

Newstead Gas Ring

that has extended over two decades is being implemented to transform the

Brisbane, Australia

formally derelict post-industrial wasteland into a busy and vibrant contemporary living, working, and commercial environment. New lighting has

Photo:

brought the superstructure to life with a design by Heath Williamson of Fire-

Courtesy Heath Williamson

fly, who developed a program using 500 Anolis LED lighting fixtures placed on every bracing cross-member of steel on the middle and top rings.

 Urban Renewal & Revitalization

BROUGHT BACK TO LIFE

Lighting has introduced into the urban scene such structures as Brisbane’s once-abandoned Newstead Gas Ring. Constructed on the banks of the Brisbane River in 1887, its 499-ft circumference is supported by 20 66-ft tall spires.

Canada Square at Harbourfront Centre in Toronto was originally conceived by landscape architects Michael

Canada Square

van Valdenburgh Assocs. as a space that frames an

at Harbourfront Centre

idealized view of the harbor and the islands beyond.

Toronto, Canada

Now the heart of Toronto’s waterfront, it underwent an extensive transformation, creating lively public spaces

Photo:

and amenities such as entertainment venues and

Light Monkey Photography

dining options where there had once been block-long stretches of underused shipping facilities. Laura Solano, a principal of MVVA, points out that the design was planned so that all of the square’s support and lighting elements are integrated into this Redwood grove landscape. “The wooden poles by Structura offered the perfect complement to this tree grove in scale and in their materiality,” says Solano. Structura’s glue laminated Accoya wood round, tapered wood and metal poles are 25-ft. high, fitted with Selux Olivio 70W T6 metal halide accent lighting heads.

MAKING NEW PEOPLE-PLACES

Harbourfront Centre’s extensive site transformation has created two squares—one with islands of planted trees, and the other an outdoor exhibition and marketplace.

20  • 05.14 •  ARCHITECTURAL SSL

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TOPICS AT THE FRONT

A new annex to the city’s 1850s-era city hall prompted the construction of a GOOD FOR BUSINESS AND FOR PEOPLE

Businesses along the streets feeding into Guelph’s Market Square have benefitted from increased traffic created by the newly illuminated landscaped space fronting City Hall, featuring a skating rink in winter and a fountain during the rest of the year.

 Urban Renewal & Revitalization

public square that could be used as a skating rink. Placement of the posts, positions of the street lighting, lights near the benches, and the overall

Guelph Market Square

ambiance was defined collaboratively between landscape architects Janet

Guelph, Ontario, Canada

Rosenberg & Studio and lighting designers Éclairage Public. Four Technilum poles were posted around the rink, each fitted with 12 Lumenbeam

Photos:

Large Color Changing fixtures. The luminaires were configured for pole-

Courtesy Lumenpulse

mounting, and snoots reduce the impact of long-distance lighting.

Completed in 1912, the 10-story Galeries Lafayette

 Illuminating Iconic Structures

department store is a landmark of Art Nouveau architecture in Paris. One of the city’s quartet of world-class

Galeries Lafayette

specialty stores that also includes Printemps, Le Bon

Paris, France

Marché, and La Samartaine, Galeries Lafayette celebrated its one-hundredth anniversary by commission-

Photos:

ing French light designer Yann Kersalé and architect

Courtesy Traxon

Djuric Tardio to wrap the exterior in a web of 19,200 Traxon XL-3 RGB LEDs encased in aluminum bars. A pair of LEDs line both sides of each bar, one facing the façade and the other pointed toward the street. Colors can be adapted for special events and changed for the seasons. The design will remain in place until 2018.

ALL WRAPPED UP

More than 30 million people visited the 710,000-sq.-ft. Galeries Lafayette store on Boulevard Haussman last year, making it the second most-visited attraction in Paris, after the Eiffel Tower. To celebrate its centennial in 2013, a $104 million renovation was launched by interweaving miles of computer-controlled LEDs on its façades.

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ARCHITECTURAL SSL  • 05.14 •  21


TOPICS AT THE FRONT

 City Streetscapes

When the city of Belfast’s Dept. of Social Development set aside funds for reviving its urban landscape, new seating, signage, landscaping, public art

Streets Ahead—Phase 1

and lighting were included in the project, which was identified as “Streets

Belfast, Northern Ireland

Ahead.” Phase I included 14 streets that have been transformed to attract residents and tourists and form a cultural core used for major public events

Photos:

and gatherings. Drawing on the city’s maritime tradition as its historical

Courtesy Traxon

theme, the east side of Donegall Place features eight illuminated 54-ft-high sculptural interpretations of a ship’s mast.

 City Streetscapes

SIGNALING A NEW CHAPTER

Once one of the world’s major shipbuilding centers, Belfast is rewriting its economic forecast by recasting its City Centre area to attract tenants to fill offices and retail spaces. A multidisciplinary effort led by AECOM includes lighting design by Atkins.

An investment of $15 million is transforming Brooklyn’s Fulton Street into a modern shopping thoroughfare.

Fulton Street Mall

Located in the most populous of New York City’s five

Brooklyn, New York

boroughs, Fulton Street went into decline as a shopping destination toward the end of the 1990s. As Brooklyn

Photo:

became a growing alternative to Manhattan, several

Horton Lees Brogden Lighting Design

civic improvement groups banded together to attract mid- and upper-mid price stores and shops. The goal was to create a clean, contemporary physical environment with improved landscaping, additional seating and public spaces, and infrastructure improvements. Horton Lees Brogden Lighting Design created a pole lamp with two high color rendering ceramic metal halide heads to illuminate both the street and pedestrian sidewalks. Three pole types were used: 33-ft.-tall with 250- and 70W CMH for most fixtures; and at Albee Square, 17-ft-tall single-head fixture with 100W CMH, and 17-fttall double-headed fixture with two 70-W CMH lamps.

CHANGING CHARACTER

A dramatic facelift has turned Fulton Street from a truck-clogged commercial street catering primarily to vendors of lower-priced products to a broad-based shopping destination catering to Brooklyn’s many income levels. The pedestrian side of the double-headed pole lamps illuminates the façades of buildings that frame the retail corridor.

22  • 05.14 •  ARCHITECTURAL SSL

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F§±TUR§D PRoj§Ct

Hanjie Wanda Square, Wuhan, China

Located in the Wuhan Central Culture Center, Hanjie Wanda Square’s tapered exterior structure is clad in modular patterns created by 42,333 stainless steel spheres each containing an LED light fixture.

Owner, Construction Manager: Wuhan Wanda East Lake Real Estate Co. Ltd. Project Manager: Wanda Group Headquarters Planning Institute Architect: UNStudio Lighting Design: a.g Licht Architectural Advisor: Central South Architectural Design Institute, Inc. Façade, Interior Funnel Structure Advisor: Arup SHA Lighting Advisor: LightLife, BIAD Zheng Jian Wei Lighting Design Studio, BUME Lighting Design & Engineering Co. Ltd. Text: Vilma Barr Photos: Christian Richters The Challenge: Architects UNStudio, led by Ben van Berkel, proposed a luxury shopping, dining and entertainment structure enclosed by a skin of custom LED stainless steel fixtures that would be display media presentations in the evening and offer a distinctive daytime textured presence. The Solution: In collaboration, UNStudio and a.g Licht brought illumination technology for a mega-retail structure to create a dynamic urban icon in Wuhan, China.

Back in 2003, the retail world was agog over the exterior design of Deben-

tion of a multi-firm, multi-cultural collaboration to create a dazzling retail

ham’s department store in downtown Birmingham, England. Completely

landmark. In 2011, Wuhan Wanda East Lake Real Estate Co. Ltd. sponsored

covered in sparkling metal roundels and occupying a prime downtown

an international competition to design their proposed super-size shopping

corner location, the curved, wavy façade was a harbinger of things to come.

center to serve the area’s trendy, fashion-conscious consumers. UNStudio,

Fast forward to December 2013 in Wuhan, China. Here, the LED, multi-

with offices in Amsterdam and Shanghai, submitted an innovative solution

media age leapt forward to produce Hanjie Wanda Square, a destination

that incorporated a blanket of stainless steel LED fixtures wrapping the

shopping center to serve the city’s burgeoning population. Its ultra-high

building’s exterior. Wuhan Wanda’s management felt this design satisfied

tech curved exterior and elegantly lit sculptural interior was the culmina-

the unique image they had envisioned, and declared UN Studio the winner.

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Shopping Dazzle

Located 650 miles south of Beijing on the Yangtze River, Wuhan is the

Wilfried Kramb, partner in Bonn-based a.g Licht, accepted van Berkel’s

most populous city in central China, home to 10 million residents and growing.

invitation to become lighting content provider for the façade and interior

Ben van Berkel, co-founder and principal architect of UNStudio, saw the

public spaces. Taking into consideration the stringent timeline for open-

Hanjie Wanda Square project as an extension of the fast-paced, tech-aware

ing, and the distances involved with the European team and the project in

lifestyle of the center’s future patrons. It wouldn’t look like anything that

China, Kramb collaborated with Lightlife for content and controls; BIAD

had come on the scene anywhere else in China. With five floors above

Zheng Jian Wei Lighting Design Studio, Beijing, for the façade lighting; and

grade—plus a mezzanine and two levels below grade—it would become the

lighting supplier BUME Lighting Design & Engineering Co. Ltd., Shenzhen,

region’s epicenter for shopping, dining and entertainment.

for the interior lighting program.

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ARCHITECTURAL SSL  • 05.14 •  25


“For the façade design, we combined polished stainless steel and patterned standardized spheres with an inlay of laminated glass with printed foil,” Kramb explains. “The spheres have a diameter of 24-in. and are mounted at various distances on the 35×35-in. brushed aluminum panels, which were pre-assembled and mounted on the site. There are 4,700 aluminum back panels, each containing nine sphere clusters. Within each sphere, the LED fixtures emit light onto the laminated glass to generate glowing circular spots. Simultaneously, a second set of LEDs at the rear side of the spheres create diffuse illumination on the back panels,” says Kramb. Kramb and his team detailed the surface to contain 42,333 exterior spheres. A total of 3.1 million LED lights were used to cover the 193,000-sq.-ft. media façade. “We tested combinations of metallic colors in combination with the stainless-steel spheres to avoid hot spots and reflections on the background surface,” Kramb indicates. “Ben van Berkel and I agreed that high-resolution RGB LEDs were to be retained while the fixtures were economically optimized. A retail mall is a demanding space, requiring a high level of maintenance

Partial Section, Front of Hanjie Wanda Square

Lighting modules flow with façade around the exterior of the building

and long-lasting materials,” he stated. “It was a challenge to guide the execution of the project so that quality wasn’t compromised, taking into consideration the fasttrack time schedule. This includes close coordination with the client’s

Metal back panel Stainless steel sphere Patterned glass disc LED light fixtures Acrylic mirrored and translucent surface

“For the façade design, we combined polished stainlesssteel spheres with an inlay of glass. Within each sphere, an LED fixture emits light onto the glass to generate glowing circular spots. A second LED illuminates the back panel.”

suppliers to achieve the effect the owners had agreed upon.” Kramb and van Berkel planned the exterior so that it would have three-dimensional visual appeal day and night. ”During the daytime

Stainless Steel Façade Spheres

Apertures ranging in diameter from 0 to 500mm

hours, the building surface reflects and modifies the daylight and sunlight angles,” Kramb says. “There are nine different types of spheres

26 • 05.14 • ARCHITECTURAL SSL

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to produce the dynamic shimmering patterns. The lighting system is fully integrated into the sphere to create the medial light curtain with two layers. There is a backlit alabaster inlay at the rear that creates a sharp direct pixel, and LEDs on the backside of the spheres project a soft pixel on the back wall,” he describes. The two layers can be controlled independently and in combination with the reflections of the surrounding light, resulting in a brilliant and lively three-dimension medial platform. For the control system, a.g Licht and Lightlife specified e:cue DVIDMX converters and a powerful Coolux media server. “We had to adjust the intensities and the color of the different sphere types as well as the direct and the indirect pixels,” he emphasizes.

For the indirect pixels, the

spheres have different distances to the back wall. For the direct pixels, the diameter of the alabaster was different, and in the entrance, the spheres have a mirror in front of the LEDs. “The intensity and the colors of the spheres were different, depending on the type. We created precise pixel masks inside the media server to adjust the color per sphere type,” Kramb says. Visitor expectations are piqued by the mammoth wrap-around exterior light sculpture; they expect something grand and monumental inside. They aren’t disappointed. “Skylights in both interior atria are defined with full-height, funnelshape structures that contain the elevators. Each structure is composed of 2,600 separate glass panels that have a digitally printed patterned surface,” indicates van Berkel. “We positioned LED uplights mounted on the steel structures

 Nine different types of spheres produce dynamic shimmering patterns, and the lighting system is fully integrated into each sphere. For the control system, a.g Licht and Lightlife specified E:cue DVI-DMX converters and a powerful Coolux media server.

that emphasize their impressive dimensions and create the top-tobottom glow,” he says.

www.architecturalssl.com

ARCHITECTURAL SSL  • 05.14 •  27


Lighting delicately traces the undersides of the undulating balconies, and direct downlights reflect on the off-white floor color.

28 • 05.14 • ARCHITECTURAL SSL

Architect van Berkel utilized the

delicately traces the undersides of

practices to produce a stunning,

lighting concepts as wayfinding el-

the undulating balconies. To create

world-class interpretation of a

ements in the interior space. Light-

an illuminated pathway in the cor-

merchandising environment. Like

ing patterns help to guide shoppers

ridors, direct downlights reflect on

Debenham’s more than a decade

from the north and south atria on

the off-white floor color.

ago, Hanjie Wanda Square can be

the entry level to the upper levels.

In approximately 24 months,

interpreted as the harbinger of a

Entrances and atriums have lively

UNStudio and a.g Licht demon-

new brand of how retail interacts

changing programs, while interior

strated their artistic originality

with consumers, trading brick-and-

walkways, by contrast, are illumi-

and mastery of the esthetics and

mortar for stainless steel, glass,

nated with a steady beam. Lighting

technology of their professional

and lighting.•

www.architecturalssl.com


 Hanjie Wanda Square is an extension of the fast-paced tech-aware lifestyle of the Wuhun’s 10

million residents. Extended skylights introduce daylighting to the interior’s public spaces.  With five floors above grade plus a mezzanine and two levels below grade, Hanjie Wanda Square

was planned by the developers to be central China’s region’s epicenter for shopping, dining and entertainment.  Looking up toward the glazed paneled skylight inside Hanjie Wanda Square shopping and

entertainment complex. Skylights in both interior atria are defined with full-height funnel-shape structures that contain the elevators.

www.architecturalssl.com

ARCHITECTURAL SSL  • 05.14 •  29


THE

KUBO

COLLECTION

WWW.

LIGHTING.COM Circle 10


COURTHOUSE RULES IN FAVOR OF LED ON THE GROUNDS OF BETTER MAINTENANCE Santucci Justice Center Courthouse, Roseville, Calif.

The South Placer County Santucci Justice Center, part of the Superior Court of California, is one of the most technically advanced, cuttingedge justice centers, especially in terms of architectural design. Located in the Sierra Nevada range, Placer County stretches from Sacramento to Lake Tahoe. At the time of the courthouse’s construction, the region was one of the fastest-growing areas in the state. In fact, the population of Placer County grew by more than 25,000 people in only four years. To meet the increasing demand for court services, Placer County commissioned Sacramento-based architectural firm Dreyfuss & Blackford to design the courthouse, as well as the master plan for a new government center on a 100-acre site in Roseville. The project officially opened in July 2008. The center itself is a light-filled structure that was sited to make the most of the dramatic views of wetlands to the south. Dreyfuss & Blackford paired site-cast concrete with storefront, Reynobond ACM panels and polished India Black stone veneer. A canopy fabricated in Silver Reynobond ACM and bracketed in polished black stone denotes the entry on the northern elevation, the front and public entry side of the building. The lobby is remarkably transparent, with full-height glazing and skylights bathing the area in natural sunlight. In just a few short years of operation, the county decided to update the lighting in the facility—specifically, to update it with LED. That

ABOVE: The operators of the Santucci Justice Center in Roseville, Calif., liked the look and feel of its lighting

scheme a lot. What they did not like was the high energy consumption and disruptive maintenance efforts required to replace burnt-out fixtures. The solution? An LED retrofit that was able to take advantage of existing fixture housings. Images: TerraLUX

said, it was important to the client to maintain the clean, modern aesthetic and feel originally envisioned and delivered by Dreyfuss & Blackford. According to Edward V. Mazyck, Jr., principal of TMG Energi Solutions, Inc.—the ESCO on the project—LED appealed to them and the county because it provided a means for a longer

www.architecturalssl.com

ARCHITECTURAL SSL  • 05.14 •  31


SSLProfile:

Santucci Justice Center Courthouse, Roseville, Calif.

THE CHALLENGE: Retrofit the original lighting design of the courthouse, including much of its daylighted atrium, with a more energy efficient illumination solution that, more importantly, reduced the need for disruptive maintenance—an issue in a security-sensitive facility. THE SOLUTION: The courthouse operators engaged energy solutions provider TMG to retrofit the center with LED. The consultant was able to deliver the goods by creating a custom retrofit kit that allowed the team to place more efficient LED light sources in existing fixture housings. PROJECT CREDITS:

Client: South Placer County Santucci Justice Center Lighting Design: TMG Energi Solutions PRODUCTS:

TerraLUX: MR16B LED Engine; MR16B LED spot engines; DLR7H downlights. THUMBS UP   As sections of the retrofit were completed each night, courthouse personnel were asked what they thought of the new lighting—responses were highly favorable.

operating life, which theoretically would allow

In total, more than 500 LED sources were

the county to dramatically lower maintenance

installed in downlight fixtures throughout the

costs by increasing the intervals between lamp

courthouse’s lobby, stairwells and common

replacements, compared to the existing system.

areas. In addition to preserving the beauty of the

Another factor, according to Mazyck, is that LED

architectural design, TMG was able to reduce

solved a bigger problem for the courthouse:

lighting wattage by 62%.

it would allow the retrofit team to modify the

On the justice center’s exterior, lamp and

existing fixtures in place, rather than having to

ballast maintenance cycles were also truncated

perform major renovations.

when TMG illuminated the front walkway with

In researching LED solutions that would

TerraLUX MR16B LED spot engines. Now the

complement the existing architectural design

lights come on at dusk and turn off at dawn,

and aesthetics, TMG found the right match in a

and—more importantly to the center’s opera-

line of TerraLUX LED retrofit products. Specifi-

tors—regular scissor-lift replacement is a thing

cally, they chose the company’s 6-in., 5000K LED

of the past.

Linear Engine for exterior recessed downlights;

The end result is a more energy-efficient,

for the interior, TMG opted for the TerraLUX

lower maintenance building that preserves the

MR16B LED Engine and its DLR7H downlight.

original architectural design and aesthetics.

“We fabricated custom retrofit kits that al-

“It will provide our clients with a solution that

lowed us to use the existing fixture housing and

will last for many years to come,” says Mazyck.•

ADJUSTING ON THE FLY   TMG was able to fabricate custom retrofit kits that allowed the energy consultant to adapt the 6-in. TerraLUX 5000K LED Linear engines to existing fixture housings as demonstrated above. TMG was able to reduce lighting wattage by 62%.

trim,” says Mazyck.

32  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


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Circle 11

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Circle 12


HISTORIC LONDON CLUB REVISITS ITS PAST WITH MODERN LIGHTING Reform Club London, England

Considered to be one of the most important Grade-1 historic interiors in London, the Reform Club, situated in the heart of the city’s Clubland, was designed in 1841 by Sir Charles Barry— the same architect who created the Palace of Westminster, which houses Britain’s Parliament. He intended the space to be an “imposing and palatial clubhouse” and it’s easy to argue that the club certainly fulfills that expectation. In more recent times, the original decorative finish of the Victorian-era building has undergone a delicate conservation and restoration. Part of that renovation included an appropriate lighting plan. In fact, from the outset, a clear client vision and concept was to introduce life back into the Grand Hall, with a desire to specifically highlight its galleried landings and daylightfilled atrium. Indeed, the lighting was to be “the eyes” through which to enjoy this interior, by providing a soft, warm and three-dimensional glow to highlight the club’s architectural details, artwork and paintings. Bristol, U.K.-based Lighting Services worked closely with the client to deliver a solution to enhance the restoration and conservation work. Zumtobel was chosen as the technology partner to provide an advanced, concept-led lighting and control system. In the gallery, Lighting Services’ scheme provided adaptable multiple DALI LED spotlights that cross-washed 18 listed portraits, as well as the splendid, but once dark and out-of-sight, coffered ceilings. To illuminate the club’s swags

ABOVE: A visit to London’s Victorian-era Reform Club remains a special experience even today. In renovating the club, its operators wanted new lighting to add life, excitement and vitality, but also to provide “eyes” through which visitors and staff could experience the club’s “charisma” while at the same time meeting conservation and energy requirements. Images: Zumtobel

and pilaster capitals—specifically to make them much more vibrant and alive—Lighting Services set the columns in relief to provide an overall balanced visual effect to what is in essence a fabulous stage set. Yet the heart of the plan might be Zumtobel’s Luxmate Litenet lighting management system.

www.architecturalssl.com

ARCHITECTURAL SSL  • 05.14 •  35


SSLProfile:

Reform Club, London, England

THE CHALLENGE: Incorporate more efficient and maintainable lighting, while preserving—and highlighting—the club’s Victorian architecture. THE SOLUTION: The sustainable lighting solution is based on the interplay of state-of-the-art LED technology and innovative luminaires with intelligent lighting management as its centerpiece. The lighting control system combines complex features such as use of daylighting, presence detection, integrated emergency lighting, and pre-defined room profiles in one easy-to-operate unit. PROJECT CREDITS:

Client: Reform Club Lighting Design: Lighting Services, Bristol, UK PRODUCTS:

Zumtobel: Luxmate Litenet lighting management

SENSITIVE TO ITS SURROUNDINGS   Heritage requirements dictated that, for the most part, light sources should not be visible. The minimalist Supersystem was used on both the upper and lower floors.

system; Supersystem LEDs; DALI LED Decoline luminaires; Discus LED spotlights

  Discus LED spotlights were used to complement the Superssystem fixtures in the atrium.

Because the building is used 24/7, potential

of flexibility, a key selling point for the club’s

direct and indirect lighting can be flexibly placed

energy savings had to be identified and real-

management; because lighting will be refur-

next to each other within one module, the club

ized to optimum extent. The Zumtobel system

bished step-by-step in other areas and rooms,

can easily tackle a variety of different lighting

combines complex control features such as use

the club needed a system that would be easily

tasks. In the atrium, the lighting solution is com-

of daylight, presence detection, integration of

extendable in the future. Using pre-programmed

plemented by DALI LED Decoline and Discus LED

emergency lighting and predefined room profiles

scenarios, the Luxmate Litenet system provides

spotlights. They set the stage for the impressive

in one central unit that is easy to operate. This

the opportunity to easily and conveniently create

“sun-burner,” an oversized historic gas lantern.

effectively creates an interplay of state-of-the-

appropriate atmospheres for a variety of social

art LED and innovative luminaires with intel-

gatherings and other events in the areas desig-

Maintenance Matters

ligent lighting management.

nated for this purpose.

As the new lighting sources would be in rela-

tively inaccessible locations—as a result of both

Sensors and Supplements

Decorum and Discretion

the client’s concept and heritage constraints—

As an example, an external daylight sensor

Since the heritage requirements dictated that

the life and location of the lighting components

installed on the roof continuously monitors day-

the light source should not be visible for the

and the cost of their maintenance and replace-

light, thus optimizing the use of natural light—a

most part, designers used Zumtobel’s minimalist

ment was critical. The former lighting required

key consideration in the atrium. In other rooms

Supersystem LED lighting system in all areas.

a manual check on failed bulbs and their regular

also served by ample daylight, the quantity of ar-

Thanks to its pared-down design, the sources

and frequent replacement. The new design

tificial light added is only that which is necessary

blend unobtrusively into the architecture. The

fulfilled the requirements in terms of efficiency,

to achieve optimum lighting conditions.

high-power LED spots cannot fail to impress due

sustainability and flexibility, which played a role

In addition, the system provides a high degree

to their modularity; since lighting inserts for

in delivering the final outcome.•

36  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


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Circle 14


By Kevin Willmorth, editor

Exploring Wireless Controls, Pt. 1 Following is the first in a series of pieces exploring wireless controls.

Lighting control has always been challenged by the need to make

of wireless controls, which harvest their own energy from ambient

direct wire connections between the controllers and the lighting equip-

light or kinetic activation. When used to interface with luminaire-in-

ment being controlled. Connecting manual and automatic controls to

tegrated light and occupancy sensors, wireless controls not only offer

luminaires with wires has always been complex. While the advent of

increased efficiency in the use of lighting energy, they do so without

data-based controls architectures has improved this to some degree,

consuming power of their own.

there is no escaping the cost and lack of flexibility wired communications presents. The results lack flexibility and are costly to commission.

Integrated Modules

To address the liabilities of wired systems, wireless controls have

The most recent trend in solid-state wireless control is the integra-

been viewed as a more flexible and less complicated technology. Early

tion of wireless communications within luminaires or LED modules

iterations suffered sketchy reliability, loss of signal, failure of re-

themselves. Several retrofit lamps, LED modules, and LED luminaire

sponse, and general difficulty in commissioning and trouble-shooting;

products are emerging with integral capability to be controlled wire-

yet recent advancements have significantly improved performance on

lessly. As this base expands, creating full lighting schemes with wire-

all levels. Wireless mesh networks with two-way communications

less control will be possible. However, at this time, application is spotty

capable of self-monitoring are able to recover from an error automati-

due to the lack of uniformity between products and built-in network

cally. Further, each luminaire connected can act as both receiver and

support structure.

transmitter, relaying information to nearby luminaires, eliminating issues of signal loss due to distance or barrier. The addition of either line-of-sight infrared communication or send/receive repeater components increases reliability when distances between devices is extreme. The Internet and Apps Wireless control and communication now includes use of Bluetooth and direct wireless interface with iOS and Android smart devices

The potential for wireless controls is almost limitless, but too many proprietary approaches, dictated by a lack of uniformity and standardization, is artificially slowing its adoption. Until this is resolved, sorting options to build a lighting system will remain a daunting task.

(phones and tablets), expanding interface options beyond fixed station controls and enabling user occupant’s personal interaction with devices they already have in hand. Use of Apps-based controls increases

The current limited state of wireless controls is not due to lack of

flexibility of the platform to perform in ways not foreseen at the time

capability. It is due to rapid deployment of too many different solu-

of installation, updated, monitored, and maintained over the Internet.

tions, heading in too many directions at once. Lack of uniformity and

This extends beyond the obvious ease of use these devices offer.

compatibility—to satisfy the manufacturers’ desire to own the largest

With integrated ambient light, temperature, motion sensors and image

portion of a project—are creating so many proprietary approaches that

capture—in addition to the ability to communicate with other devices,

application of wireless controls adoption is being artificially slowed.

access the Internet, and interact with hardware located in spaces—

Until this is resolved, sorting available options to select products to

smart devices present enormous potential for controls sophistication

build a lighting system will be a daunting task. Further, the costs of

beyond manual on-off-dim operation. For example, using a built-in

wireless controls remain significantly higher than wired systems.

light-sensing, motion-sensing and proximity-sensing device creates oc-

The expansion of offerings in wireless products, improvements in

cupancy activation, light level adjustment, and activity response with-

the technology and its reliability, and advances in software to aid com-

out adding a single control component in the controlled space. While

missioning and maintenance will soon deliver the promise of control

the issue of relying on portable communications devices as an integral

without wires. However, the underlying issues—compatibility between

component in architectural lighting schemes remains controversial, it

manufacturers’ products, the absence of a single uniform network

is impossible to ignore the potential.

protocol, high costs compared to wired systems, and gaps in product

While wireless control offers interaction with the controlled lumi-

availability to build a complete lighting system—continue to slow

naires without wires, they frequently require power of their own. An

deployment. In time, these issues will be resolved and the use of wires

exception to this is the expanding range of the EnOcean Alliance base

will go the way of the incandescent filament.•

38 • 05.14 • ARCHITECTURAL SSL

www.architecturalssl.com


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Intense Lighting, LLC | Anaheim, CA Visit us at www.intenselighting.com Circle 15

DOWNLIGHT

ADJUSTABLE


By Kevin Willmorth, editor

The Magic of Chip-On-Board LEDs For certain interior lighting applications, COB arrays really deliver.

LEDs are now being offered in a wide range of forms, each with its

generate as much as 3,000 lumens. Still larger 1-in. arrays generate

own advantages: microscopic single die point sources of low intensity

as much as 18,000 lumens from a single source presence. Even larger

used as indicator lights and low brightness arrays; mid-scale packaged

devices generate more than 50,000 lumens. With efficacies ranging

devices with one or two LEDs in small, low- or medium-power levels

from 110 lm./W to 135 lm./W, COB arrays deliver highly efficient lumi-

used in linear or area arrays; high-power point source packages com-

naires. Single high-brightness LED packages offer higher raw efficacies

prised of one or more LED die generating single-point brightness well

when mounted in close proximity, but under diffused optics to create

suited to optical control; and chip-on-board (COB) arrays comprised of

a uniform presence, that advantage is lost. Mid-power LEDs deliver

many dies arranged under a large, low-profile phosphor dome deliver-

exceptional efficacy, but take up more real estate to deliver the lumen

ing the highest single device lumen output of all.

output of a single COB array.

What’s in a Package

Pros and Cons

Packaged LED devices include a case, electrical contacts and a thermal

Service life is reduced somewhat due to the greater number of internal

interface. These are mounted to circuit boards to produce a target

die and connection points, and degradation of the large phosphor

effect. For outdoor area lighting, this takes the form of many individual

covering. However, most COB packages maintain 70% of their initial

LEDs under individual optical control reflectors to generate high

lumen output for 50,000 to 70,000 service hours. Color uniformity and

candlepower. For interior lighting, smaller mid-power LED devices are

color maintenance are also very good, as all of the LED dies rest under

often arranged in a uniform pattern on a large circuit board to produce

a single phosphor cover, rather than multiple discrete devices. COB

a more uniform and diffuse result. In each case, there are several con-

packages are also available with color accuracy from 70CRI to as high

nection points, as well as three layers of thermal interface: the LED

as 98CRI in all of the desirable color temperatures from 2700K to 6500K.

die to the thermal slug; the thermal slug to the circuit board; and the

circuit board to the fixture’s thermal components.

Interior Oriented COB arrays are particularly well suited to interior lighting uses where softer-edged light patterns and beam uniformity are desirable. When

When the desire is to create a high degree of luminance in the form of a smooth, medium spot or a narrow flood—or even to attain wide distribution from a single, uniform source—chip-on-board arrays are the most effective, delivering both high lumen output and uniform presence.

used in task or display lighting, the single source eliminates the multiple shadow effects, annoying glare or sparkle effects on specular surfaces of multiple LEDs. Due to the larger emissive surface area, attaining tight optical control is a challenge. The etendue (light spread) of COB arrays requires either large reflectors, or inefficient shielding. However, in other than a few specialty spot lighting applications, the effect of medium spot, narrow and wide flood optics on COB arrays produces an attractive,

COB arrays are a circuit board with the LED die-mounted directly,

smooth beam pattern with a gentle surrounding field similar to con-

doubling as the thermal interface. The dies are pre-circuited for

ventional PAR and MR light sources.

connection at just two contact pads, to which wires are soldered or holders make contact electrically. The direct thermal path and larger

Uniform Presence

contact area under the COB array produce low LED operating tempera-

When the goal is to attain extremely tight optical control, high bright-

tures. Further, since the circuit board foundation is simply screwed or

ness LED packages are the preferred source. For large diffuse surface

clamped to the fixture’s thermal component, application is simplified

illumination, low- and mid-power LED packages in large arrays deliver

using off-the-shelf components.

the best result. But when the desire is for high luminance in smooth,

medium spot, narrow flood or wide distribution from a single, uniform

Smaller, but Brighter

source, COBs are most effective. They deliver both high lumen output

Small COB arrays, with phosphor domes of roughly 3/8-in. diameter,

and a uniform presence that is well suited to interior accent and general

produce 300 to 400 lumens. Larger arrays, ranging from 1/2-in. to 5/8-in.,

illumination in downlight, accent, task and display applications.•

40 • 05.14 • ARCHITECTURAL SSL

www.architecturalssl.com


TUBE Architectural LED Wall Mounts

5”, 6”, 8”

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Symmetrical and Asymmetrical Distribution Options:

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Available Pendant and Ceiling Mount Options Up to 4,000 Delivered Lumens 0-10V Dimming 80,000 Hour Rated Life

spec hotline: 1.866.788.2100

Circle 16

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Product Introductions

Light Where You Want it The adjustable optical panels of Cooper Lighting’s Neo-Ray Index pendant are available in 15-, 0- and -15-degree angles, so illumination can be directed right where it’s needed. The fixtures can be ordered in a range of lengths, including as continuous runs, and in three different color temperatures at two lumen output levels. A 0- to 10-volt dimming driver is standard, but a DALI drive is an option, as are emergency battery packs and daylight and occupancy sensors.   Visit www.cooperlighting.com or Circle 291.

The adjustable optical panels of the Neo-Ray Index pendant are available in 15-, 00- and -15-degree angles, to direct illumination where it’s needed.

1 Watts of Savings 5W and 7W LED replacement MR16 lamps from MaxLite can replace 30W and 50W halogen units in miniature recessed track and cabinet luminaires, with lifespans that provide significant maintenance savings and replacement costs.   Visit www.maxlite.com or Circle 292.

2 Big Light from a Small Package The light-emitting surface of the Osram Opto Soleriq P9 LED is only 9-mm. in diameter, but the light output of only one of these devices can match that of a 35W HID lamp. The LEDs are designed for use in the kind of high-end compact spotlights favored for retail and museum illumination, with a range of available color temperatures.   Visit www.osram-os.com or Circle 293.

3 For Those Friday Night Lights Designed for indoor sports and civic arenas, the Hubbell Lighting ArenaLED luminaires provide optimal lighting for fans (and television broadcasts) as well as players and performers on the field. The fixtures deliver 40,000 lumens.   Visit www.hubbelllighting.com or Circle 294.

42  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


Product Introductions

Curvalicious Designers can combine the curved and linear segments of the Circular POL XXL overhead indirect lighting system from Martinelli Luce to create custom lighting solutions in large-volume spaces, such as department stores, retail outlets, hotels and monumental lobbies.   Visit www.martinelliluce.it or Circle 295.

Designers can create custom lighting solutions in large-volume spaces by combining curved and linear segments.

4 Adjustable-Output Flood Fixture The Beacon Products Cadet floodlight features an LED cartridge bezel system allowing designers to manually adjust light output from 100% down to 25% of the maximum 55W output. The fixture can be specified in any of six available NEMA distributions, and in three color temperatures.   Visit www.beaconproducts.com or Circle 296.

5 Bringing the Web to Light Xicato has given the XIM LED Module “the power of a smart phone” with an integrated driver, on-board dimming capability, self-diagnostics, sensors and connectivity. The new module also provides an efficacy rating of more than 100 lumens per watt.   Visit www.xicato.com or Circle 297.

6 Pitch the Pole The 3-ft.-high aire7|X7 bollard from a•light can be spaced at the same 20-ft. on-center distance as a much taller pedestrian pole, while producing a similar light distribution at a much lower wattage. The fixtures feature a minimalist metal housing in three standard colors finishes.   Visit www.alights.com or Circle 298.

www.architecturalssl.com

ARCHITECTURAL SSL  • 05.14 •  43


Product Introductions

Fit for Tight Spaces The Source Four Mini spotlight from ETC is designed for applications where available space might be tight and applicable energy codes strict. The luminaires are available in canopy- and trackmounted versions (as well as a portable unit), and in four field angles.   Visit www.etcconnect.com or Circle 299.

Available in canopy- and trackmounted styles or as a portable unit, the Source Four Mini spotlight brings light to tight spaces.

1 Spotlight Redesign The Parscan family of spotlights from ERCO has been redesigned for use with LEDs, using a minimalist housing that can be easily adjusted to highlight changing retail displays. Additional flexibility is provided by Sperolit lenses, which provide six different light-distribution patterns.   Visit www.erco.com or Circle 300.

2 High-Voltage Performer The Philips Lumileds LUXEON 3535 HV is designed to meet a need for LEDs compatible with high-voltage drivers, which can be used to simplify design and lower the total cost of an overall lighting solution – whether it’s a luminaire or replacement lamp. The line includes 24V and 48V models.   Visit www.philipslumileds.com or Circle 301.

3 A Flood of Savings New Predator LED floodlights from Holophane can save owners up to 60% in energy costs—and cut maintenance in half—compared to metal halide fixtures. Two model families are available, both offered in multiple lumen packages.   Visit www.holophane.com or Circle 302.

44  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


Product Introductions

Hold On TE Connectivity’s Lumawise LED holders simplify manufacturing with a solderless design and integrated poke-in wire connections. The holders bring together thermal, electrical, optical and mechanical connections for LEDs from a range of suppliers. Standard and custom models are available, including Zhaga-compliant Type Z holders, for use in sconces, recessed downlights, track and spot fixtures and other LED applications.   Visit www.lumawise.com or Circle 303.

Lumawise LED holders bring together thermal, electrical, optical and mechanical connections for LEDs from a range of suppliers.

The New Standard in Emergency Lighting Philips Bodine BSL310 Emergency LED Driver for Linear Strip Fixtures • Converts linear LED strip fixtures into emergency lighting • Code-compliant 90-minute runtime • 1300 lumens max. in emergency mode • Class 2 compliant • Low-profile case (14.5” X 2.25” X 1.18”) • Universal input (120-277V, 50/60 Hz) Uni • UL Recognized for factory installation • Field installable exclusively with Philips EvoKit LED Retrofit Kit • Patent pending Contact us for more information. Philips Emergency Lighting

800.223.5728

www.philips.com/bodine Circle 17


±DV§RTiS§R

      ∆§BSiT§

CiRCL§ ∑UµB§R

P±g§ ∑UµB§R

3G LIGHTING

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Circle 10

30

ACCESS LIGHTING

www.accesslighting.com

Circle 09

23

ACCLAIM LIGHTING

www.acclaimlighting.com

Circle 06

11

B-K LIGHTING

www.bklighting.com

Circle 14

37

BODINE / PHILIPS

www.bodine.com

Circle 17

45

COLUMBIA LIGHTING / HUBBELL

www.columbialighting.com

Circle 12

34

CONTECH LIGHTING

www.contechlighting.com

Circle 19

IBC

COOLEDGE LIGHTING

www.cooledgelighting.com

Circle 13

37

INTENSE LIGHTING

www.intenselighting.com

Circle 15

39

KIM LIGHTING / HUBBELL

www.kimlighting.com

Circle 20

BC

LIGHTFAIR INTERNATIONAL

www.lightfair.com

NORA LIGHTING

www.noralighting.com

SAMSUNG LED

www.samsung.com

Circle 07

17

SEOUL SEMICONDUCTOR

www.seoulsemicon.com

Circle 11

33

STERNBERG VINTAGE LIGHTING

www.sternberglighting.com

Circle 04

09

TE CONNECTIVITY

www.te.com

Circle 08

23

TECH LIGHTING

www.techlighting.com

Circle 03

06

VISIONAIRE LIGHTING

www.visionairelighting.com

Circle 02

04

VISTA ARCHITECTURAL LIGHTING

www.vistapro.com

Circle 05

10

WAC LIGHTING

www.waclighting.com

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41

47

Circle 01, 18

IFC, 01, 46

NEXT ISSUE:

CORRECTIONS:

Oh What a Feeling... ...Lighting up the ceiling, to paraphrase Lionel Ritchie. In Topics at the Front, Vilma Barr takes a look at how LED is dramatically changing the way designers treat the ceiling. Kevin Willmorth further explores the qualitative value of light, and the need to achieve balance in bringing to bear more efficient interior environments. On the Project front, we’ll take a look at a couple of swank spaces taking advantage of LED’s discreet form—the new Intermix ladies’ fashion store in New York, which delivers the right light without customers even knowing fixtures are there; and the award-winning lighting design of Hutong, a restaurant located in London’s newest skyscraper, the Shard.

Buzz Chart Incomplete The color shift chart on page 7 in the February issue, referencing the DOE Gateway study of the Smithsonsian American Art Museum in Washington D.C., omitted a couple of data points that may have made it harder for readers to understand, as no labels relating to hours of use were noted on the graph. The full graphic is available in the SSL Interactive section of www.architecturalssl.com in a pdf in the story “DOE Studies LED Color Shift”under the “SSL University” tab.

Introducing Revo, the first universal, affordable, motorized track head. Experience the Revo-lution at

Also in the February issue, on page 32: due to a wording error in the Product Innovation Awards submission form, Kenall Lighting’s LPS low-profile sconce—a winner in the Specialty Lighting category—was noted for “meeting the most stringent requirements for infection control and its compatability with sensitive electromagnetic medical equipment.” The entrant wishes to clarify that the low-profile sconce does not have any kind of compatability with electromagnetic medical equipment, but its greatest feature, rather, is its compatability with MRI environments.

www.nspec-revolution.com Hutong Restaurant, The Shard London

a division of Nora Lighting www.noralighting.com

Circle 18

www.architecturalssl.com


THE NEW LANGUAGE OF LIGHT LAS VEGAS, NV USA

Las Vegas Convention Center

TRADE SHOW & CONFERENCE 6.1.14 – 6.5.14

LIGHTFAIR.COM PHOTO CREDITS TOKYO SKYTREE, TOKYO, JAPAN | LIGHTING DESIGN BY SIRIUS LIGHTING OFFICE INC. & NIKKEN SEKKEI LTD | PHOTOGRAPHY, ©TOSHIO KANEKO


SSLObserved:

By Kevin Willmorth

Suffering from Lighting Fatigue? Time for More Change cause, there exists a widespread sense of angst.

wonderful 3.5-in. thick Lighting Handbook, and

One group, however, stands out as an exception:

its nine predecessors, is having too little impact

those who see change as an opportunity. For

on the majority of day-to-day decision makers.

each change that devalues what was once valu-

There is a need to redress the level of ex-

able, there are emerging opportunities to create

pertise being applied to lighting on a broader

something new. Solid-state lighting presents op-

basis than now exists—I’m not talking about

portunities to bring the benefits of a new technol-

setting more standards to comply with, crafting

ogy to confused customers, and to help building

more definitions, issuing commandments to be

Lighting Fatigue... Sounds like a malady you

owners sort options and make solid decisions.

followed or further entrenching the profession

might hear about in a commercial for a pep pill,

The current focus on retrofitting inefficient

with certifications and licensing—I am referring

where a series of over-acting people frown and

systems with new technology is a real opportu-

to the basics of how customers are approached.

hold their heads in agony. I’ve seen similar looks

nity. Left to the free services providers, lighting

How do we serve and help them avoid falling

on the faces of trade-show attendees trying to sit

quality will suffer at the hands of profiteers.

into marketing traps? How can we help manu-

through yet another sales presentation on the

There has never been a time when lighting

facturers see what products are really needed?

virtues of solid-state from the perspective of cor-

professionals are more needed to bring together

How do we break the expensive and exclusion-

poration X. I am referring to a point we all reach

the disparate elements of controls, luminaires,

ary relationship models causing customers to

when experiencing change over a period of time.

and components. With the exception of a few, the

seek solutions from freebie predators? How do

It’s kind of like the kid bored with the long car

traditionally bold lighting community has chosen

we do this and still make a living?

journey asking, “are we there yet?”

to pass on taking an active role in exploring this

While change can be overwhelming and tire-

We are in the throes of a transformation in

opportunity. This is shameful.

some, we really don’t have time to give in to

lighting, lighting practice, and the general indus-

One explanation is that the old client/consul-

these feelings. Solid-state lighting has broken

try in which lighting is put to work. There is nary

tant/sales relationship model is as obsolete as

through practical barriers, and is expanding rap-

a place one can look and not see that something

the incandescent lamp. It’s no mystery that the

idly. Now is the time to take a deep breath, look

has shifted, moved, disappeared or appeared

costs of existing models are too high, while the

hard at what’s happening, and rebuild the art

new. Budgets have tightened while the cost of

need for expertise is undiminished. Lighting is

and practice of lighting to meet the needs of the

compliance and products have risen. Meanwhile,

not exclusive, like sports cars or vacations on

changed customer base anxious to participate

layers of anxious marketers offer free advice,

the Riviera; lighting touches everyone equally,

in the transformation. Failing this, the potential

while the web delivers information at light

and consumed energy impacts everything. Light-

for solid-state lighting to deliver truly horrible

speed. Forget the impact LEDs are having—the

ing is far too important to be left in the hands of

results is as unprecedented as is its potential to

entire world of lighting is on fire, complete with

profiteers, utility engineers or committees.

produce excellence.•

Nero screeching over the din of marketers and

Delivering education and providing informa-

legislators howling.

tion resources has been the hallmark of the IES

ABOUT THE AUTHOR:

If the direction of the winds blowing has you

for decades. However, it takes only a short visit

Kevin Willmorth, a lighting expert and fixture designer,

feeling overwhelmed, you are not alone. While

into the world to see that bad lighting is the rule,

has been instrumental in helping create a vision and

there may not be a full consensus as to the

not the exception. It appears the contents of that

mission statement for Architectural SSL.

Those who see change as an opportunity stand to benefit in a time when, more than ever, lighting professionals are needed to bring together the disparate LED market.

48  • 05.14 •  ARCHITECTURAL SSL

www.architecturalssl.com


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Architectural SSL - May 2014  

Chronicling the Advancement of LED and Solid-State Lighting in the Built Environment.

Architectural SSL - May 2014  

Chronicling the Advancement of LED and Solid-State Lighting in the Built Environment.