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Transcript of leds201309--dl.pdf
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+SIL 2013Conference report and market projections P.26 & P.35
Venting luminairesEqualization boosts reliability P.43
ThermalFocus on SIL products P.55
LEDsmagazine.com
MARCH 2013
TECHNOLOGY AND APPLICATIONS OF LIGHT EMITTING DIODES
Dynamic SSL presentationcelebrates the Bay Bridge P.33
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+Conference reportThe LED Show P.27
Thermal
materials
AlN LED packages P.39
Automotive
LEDs
Cabin and exterior
lighting P.44
LEDsmagazine.com
SEPTEMBER 2013
TECHNOLOGY AND APPLICATIONS OF LIGHT EMITTING DIODES
Hollywood LightsSting set gets LED
makeover P.9
See pg. 3133 for more information
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LEDsmagazine.com SEPTEMBER 2013 3
2013features
27 CONFERENCE REPORTPackaged LED discussion provides rousing start
at The LED Show
Maury Wright
31 CONFERENCE PREVIEWSIL Europe addresses the development of a
new lighting ecosystem
Bob Steele, Strategies Unlimited
35 STANDARDSIES moves to establish LED light-source ray
file standards
Jianzhong Jiao, Osram Opto Semiconductors
39 PACKAGINGCost-reduced AlN delivers thermals needed in
HB LED packages
Jonathan Harris, CMC Laboratories, Inc.
44 APPLICATIONSEurope adds driving force to LED market
Caroline Hayes
51 TESTINGLED system evaluation yields quality analysis
Richie Richards, Cree
59 DESIGN FORUMOptical touchscreens benefit from compact,
high-power infrared LEDs
Harry Feltges, Osram Opto Semiconductors
Cover Story
A number of LEDtronics lighting products
have enhanced the 97-year-old Santa
Monica Pier and Boardwalk, maintaining
the historical look of landmarks such
as the Looff Hippodrome (shown) while
modernizing in terms of energy efficiency,
cost reductions, and improved safety with
less light pollution for visitors (see page 9).
september
columns/departments
4 COMMENTARY Maury Wright
Electronics and lighting industries try to get in sync
9 NEWS+ANALYSIS
Iconic Santa Monica Pier gets LED facelift
Philips adds members to Hue family
SSL streetlights drop below $100
Seoul supplies China streetlights
Packaged LEDs: Seoul, Toshiba, Osram, Bridgelux, Cree, and Plessey
21 FUNDING + PROGRAMS
Gateway demonstration for MSSLC reveals LED advantages over HPS
DOE revises L Prize rules for PAR38 lamps
EPA proposes change to Energy Star verification
DOE publishes Snapshot Report on outdoor SSL
EPA marches toward finalizing Energy Star Lamps spec
DOE debunks claims of LED light hazard
DOE documents residential energy use for lighting
ISSUE 63
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4 SEPTEMBER 2013 LEDsmagazine.com
commentary
The LED Show is ongoing in Las Vegas as I write this, and a session entitled The psychology of lighting prompted this col-
umn. Specifically, Kevin Willmorth, owner
of lighting consultancy Lumenique, made
some very interesting and humorous obser-
vations about the solid-state lighting (SSL)
industry. Much of his talk was focused on
the different cultures of the electronics and
lighting industries and the need for each to
better understand the other.
While Willmorth comes from the lighting
industry, he was a very early adopter of LEDs
in lighting applications. He was equally criti-
cal and appreciative of aspects of both of the
industries. But he said that there remains a
fundamental disconnect between the 9- to
18-month development cycle for lighting
products and what he described as a two-
month cycle for LEDs.
In describing the two mindsets, Will-
morth said, The lighting industry makes a
million different things one time. In con-
trast, he said the electronics industry wants
to make a million of one thing. An exagger-
ation for sure, but still his point hits home.
The transition to LEDs has clearly been
painful for the lighting industry. Early on,
the LED manufacturers over-promised
in terms of performance and lifetime and
under-delivered. Willmorth said, Some-
where around 2011 the products started per-
forming as promised.
Today, the LED industry regularly over-
delivers in terms of lumen output and effi-
cacy. That would on the surface seem to be
a good thing. But Willmorth says that it
can be a problem for lighting manufactur-
ers and designers who work based on a pub-
lished spec only to find out that the capa-
bilities of the light source have changed by
the time a product ships or an installation
is complete.
The electronics industry has also brought
along an overload of new standards that,
while in theory are both needed and good,
have overwhelmed the lighting industry.
Willmorth showed a complicated chart with
a complex stack of optical, electronic, safety,
form factor, networking, and other stan-
dards that he calls the SSL Dog Pile 2013
and said, This is suffocating.
He still reserved plenty of criticism for
the lighting industry, and especially its
affinity for the Edison socket and light
bulb. He said, We should have made the
Edison socket illegal rather than the incan-
descent lamp, referring to energy-effi-
ciency regulations on lightbulbs.
Willmorth described the Edison base as
dangerous and not capable itself of pass-
ing UL safety standards, whereas products
that are installed in the Edison socket are
held to stricter standards. He said Califor-
nia Title 24 is step in the right direction,
requiring GU10 and GU24 lamps in new
homes and offices.
The LED component industry has played
a part in the longevity of the Edison socket
as well. Willmorth roasted the US Depart-
ment of Energy L Prize for its part in the
process. He said, The real winner is the
Edison socket surviving another round of
advancing technology.
But the lighting industry is clinging to
the established technology as well. Will-
morth clearly thinks that retrofit lamps are
holding back real advancements in energy
savings, lighting design, and better light-
ing experiences for people. He concludes,
"The incandescent lamp is dead. Lets get
over it already.
Maury Wright, EDITOR
Electronics and lighting industries try to get in sync
SENIOR VICE PRESIDENT Christine Shaw
& PUBLISHING DIRECTOR [email protected]
EDITOR Maury Wright [email protected]
ASSOCIATE EDITOR Carrie Meadows
CONTRIBUTING EDITOR Julie MacShane
CONTRIBUTING EDITOR Caroline Hayes
ART DIRECTOR Kelli Mylchreest
PRODUCTION DIRECTOR Mari Rodriguez
SENIOR ILLUSTRATOR Christopher Hipp
AUDIENCE DEVELOPMENT Debbie Bouley
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6 SEPTEMBER 2013 LEDsmagazine.com
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ADVERTISERS indexArgie Charmilles Management SA ................11
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Hangzhou Everfine Photo-E-Info Co., Ltd. .......7
Helio Optoelectronics Corp. .........................56
Henkel ........................................................13
HKTDC Hong Kong International
Lighting Fair (Autumn Edition) ....................57
Indium Corporation .....................................40
Instruments Systems GmbH .......................20
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SIL Europe ..................................................54
SIL Japan ....................................................63
Philips Lumileds ............................................2
Proto Labs, Inc. ...........................................43
Recom Power Inc. ................................ 53, 55
Seoul Semiconductor Co., Ltd. ....................30
Shanxi Guangyu LED Lighting Co. Ltd. .........16
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+LEDsmagazine.com SEPTEMBER 2013 9
viewsnews
The 97-year-old Santa Monica Pier and Boardwalk, on the
Pacific coast in Santa Monica, California near Los Angeles,
has installed LED lighting on the outside of some struc-
tures and in post-top lighting along the pier and board-
walk. LEDtronics reports that the project is already deliver-
ing 30% energy savings and will
also reduce maintenance costs
and provide better lighting for
safety with less light pollution.
The project entailed a num-
ber of LEDtronics solid-state
lighting (SSL) products. For
example, 1.3W S14 retrof it
lamps were installed in place
of 11W incandescent lamps in
multiple layers ringing architec-
tural elements of the Looff Hip-
podrome. Named for designer
Charles Looff, the Hippodrome
houses the iconic wooden car-
ousel among other things.
Now that the necklace lights
on the carousel building have been replaced with LEDs,
there are no gaps, they give off a nice, bright glow, and
the colors really bring out the colors on the building,
said Jim Harris, deputy director of the Santa Monica Pier
Restoration Corporation. We wont need to
OUTDOOR LIGHTING
Iconic Santa Monica Pier gets LED facelift
COLOR TUNING
Philips adds members to Hue familyPhilips Lighting has introduced new mem-
bers of its LED-based, color-tunable Hue
lighting family with what the company
is now calling Friends of Hue products.
Philips also struck a recent deal with
Disney to sell Hue-based lamps for chil-
dren in combination with entertainment
products such as interactive story books.
The first two Friends of Hue are a 2m
LightStrip that can be installed under
furniture or in architectural room features,
and the LivingColors Bloom fixture (both
shown here) that sits on a table or other
f lat surface and projects much like a
f loodlight on an architectural faade
(illuminationinfocus.com/news/4/8/6).
The new Friends of Hue products are
designed to work seamlessly with the Zig-
Bee bridge supplied in the Hue Starter
Kit, and with Philips and third-party
applications developed for Apple and
Android smartphones. The new products
would be configured just as if they were
yet another Hue lamp connected to the
local ZigBee network.
Adding color to a home doesnt need to
just be about art and paint; the page 12
page 10
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10 SEPTEMBER 2013 LEDsmagazine.com
news+views
change these bulbs for
years, and the LED lamps added to the rest
area and boardwalk outside of the building
increase security and provide a well-lit area
for people to relax and enjoy the sights and
sounds of the pier.
The savings with the Hippodrome lights is
near 80%, although some of the other parts
of the retrofit delivered lesser savings. How-
ever, the pier and boardwalk upgrade comes
with much better lighting and better light
control as evidenced by Harris statement.
LEDtronics supplied two different pen-
dant-style retrofit luminaires that are
suspended on decorative posts. For seat-
ing areas, 20W LEDs replace 50W and
70W metal halide (MH) and high-pressure
sodium (HPS) lamps. Along the walkways,
27W LEDs replaced 150W MH lamps. The
project also included some LED A-lamps
installed in inaccessible locations as bea-
cons around the perimeter of the pier.
With the new LED lamps in place, main-
tenance is minimal, and we have already
reduced energy consumption by more
than 30%, said Matt Henigan, energy effi-
ciency engineer with the City of Santa Mon-
ica, Office of Sustainability and the Envi-
ronment. And because the LED lighting is
directional, it improves safety and enhances
the piers appearance without causing light
pollution for local residents.
MORE: illuminationinfocus.com/news/4/7/6
OUTDOOR LIGHTING
Seoul supplies China streetlights
Seoul Semiconductor has announced that
streetlights based on the companys AC-LED
Acrich2 modules have been successfully
installed on Weiyang Road in the Jiangsu
Province in China, saving 55% in energy rela-
tive to the typical high-pressure sodium (HPS)
lights used in such applications. The project
follows on the heels of a project in Yangzhou
City that was completed back in April.
The LED streetlights use the Acrich2 4040
LEDs that are based on what Seoul calls
multi-junction technology (MJT). Essen-
tially, MJT equates to what the industry at
large calls high-voltage LEDs that connect
multiple emitters in series within a sin-
gle package, thereby simplifying the driver
design. Seouls 4040 has a 64V forward volt-
age and is driven typically at 20 mA.
OUTDOOR PRODUCTS
SSL streetlights drop below $100While part of Seouls value proposition is
low cost (see below), AC-driver technol-
ogy clearly isnt the only avenue toward
that result. Cree took the unusual tac-
tic of leading a recent LED
streetlight announcement
with product pricing, with
the news being a product for
residential streets that broke
the $100 level.
The city of Raleigh, North
Carolina, adjacent to Crees
home base in Durham, has
been an early adopter of SSL
technology, especially in
outdoor applications. This
breakthrough technology
can change the total cost-of-
ownership equation, encouraging munic-
ipalities to transition sooner to LED with
less risk, and redirect resources to other
important community needs, said Dan
Howe, assistant city manager of Raleigh.
Streetlighting is our citys largest single
energy-related cost, and the XSPR street-
light appears to dramatically change the
economics of LED relative to traditional
lighting technologies.
The new XSPR series can deliver 2529
3819 lm and Cree says they achieve a typi-
cal 63% reduction in energy usage, replac-
ing 100W legacy lights. Cree says the
payback is one year.
MORE: illuminationinfocus.com/news/4/8/5
Seoul takes the high-voltage approach a
step further with its Acrich AC-driver tech-
nology that has now been completely inte-
grated in a single IC that we covered back
in March (ledsmagazine.com/news/10/3/16).
The company says that you can replace the
typical AC/DC modular driver used in an
LED streetlight with the IC mounted on the
LED circuit board. Presumably, that config-
uration is representative of the lights used
in the China projects.
Seoul said the Acrich2 modules eliminate
a 2- to 4-kg driver module while also offering
inherent dimming support. The company
also stated that the space saved due to the
AC technology was utilized to add surge pro-
tection to handle over-current and -voltage
conditions, as well as lightning
strikes, while also enabling the
use of a smaller enclosure.
Acrich2 AC LED modules
are the optimized solution for
high reliability and remove the
difficulties of installing dim-
ming control systems using
drivers/ballasts for existing DC
LEDs, said Marten Willemsen,
vice president of marketing for
Seoul Semiconductor. Due to
the competitive price, there will
be continued success cases
These successful cases in China will lead to
more widespread adoption of Seoul Semicon-
ductor solutions in the global outdoor light-
ing market.
MORE: ledsmagazine.com/news/10/8/10
Pier from page 9
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news+views
f lexibility of smart LED
technology means light can play just as big
a part in creating a unique atmosphere in
the home that is f lexible and personalized
to you, and this is just the beginning, said
Sridhar Kumaraswamy, general manager of
Philips Consumer Luminaires EMEA. At
Philips our core focus has always been to
improve peoples lives through meaningful
innovation, and we believe we have done just
that by expanding the infinite possibilities
of hue through Friends of Hue.
Both new products can produce up to
16 million colors. The products can be
dimmed, tuned for color, and switched
on and off locally and remotely. The light-
ing products are already available in some
stores. Philips has repeatedly added either
new technology elements or products to the
Hue family this year. For example, back in
May the company enhanced the Hue app
(illuminationinfocus.com/news/4/5/9).
Now a partnership with Disney will bring
the technology to kids. The partners will
offer tunable Disney-character-themed
table lamps along with control apps that
can enhance reading activities, provide
soothing night-time environments, and
gently wake kids from sleep, among many
other potential uses.
The Philips Disney portfolio is due from
both companies existing retail channels
starting in September for the US and Europe,
and later in the year for Canada and Asia.
Apparently, the products will use Hue-like
lamps, although the partners did not detail
the technology.
The companies identified a number of
products in the portfolio, starting with the
StoryLight and Mickey starter kit. The kit
includes a table lamp with classic Mickey
Mouse shape that houses what appears to
be a Hue lamp. An app for an iPad or e-book
reader will dynamically change the lighting
as the child reads classic Disney stories.
We are proud to work with Philips to
help create positive and comforting read-
ing and bedtime environments for families,
said Simon Philips, executive vice president
and general manager at Disney Consumer
Products. This product range is a perfect
illustration of how Disney storytelling can
extend into childrens bedrooms through an
innovative and compelling consumer prod-
uct offering.
The portfolio will also include bedside
table lamps available in Mickey and Min-
nie Mouse versions that the companies call
SleepTime. The lamps are designed to pro-
vide a soothing environment during bedtime
and also to gently awaken kids in the morn-
ing. There will also be LED Candles prod-
ucts that mimic a warm flickering candle
and LivingColors products that produce a
dynamic light show.
MORE: illuminationinfocus.com/news/4/7/3
Hue from page 9
1309leds_12 12 8/21/13 11:55 AM
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news+views
PACKAGED LEDS
Seoul mid-power LEDs attack efficacy and SSL cost
Seoul Semiconductor has announced
upgrades to its mid-power LED families
both pushing efficacy up and increasing
drive current to high-power LED levels. The
company believes that maximizing efficacy
and lumens per dollar (lm/$) are the key ave-
nues through which an LED vendor can help
broaden the deployment of SSL technology.
The new plastic-packaged 5630C LED
can deliver efficacy up to 180 lm/W. There
has been a race of late to new efficacy levels
in the mid-power space. Just before the
Lightfair International (LFI) show back
in April, Samsung announced 160-lm/W
efficacy (ledsmagazine.com/news/10/3/13)
in mid-power LEDs, claiming that as an
industry high. Then at LFI, LG Innotek
announced 170-lm/W efficacy in similar
products (ledsmagazine.com/news/10/5/4).
The Seoul LEDs deliver 180 lm/W efficacy
at 60mA of drive current. The touted maxi-
mum efficacy is for a 5000K LED. Maximum
current is 160 mA for 0.5W operation. The
company targets applications including ret-
rofit lamps and tubes, and panel-based fix-
tures with the 5630 LED family.
The company also said that it now offers
an LED in the 3030 plastic package that can
be driven at 1W. That would place the LED in
competition at the low end of the high-power
LED segment. Seoul said that getting the 3030
LEDs to that power level could reduce solid-
state lighting (SSL) product costs by 50%.
MORE: ledsmagazine.com/news/10/7/16
Mid-power GaN-on-Si LEDs
Toshiba has announced two mid-power
white LED families that are being manu-
factured using gallium-nitride-on-silicon
(GaN-on-Si) technology. The company said
that the LEDs offered in 33-mm 3030 and
31.4-mm 3014 packages specifically target
indoor general lighting applications retro-
fit lamps and tubes to linear/planar fixtures.
Both of the new LED families are avail-
able across a range of 2700K to 6500K CCTs
with a minimum CRI of 80. The 5000K LEDs
also can be specified in a 70 CRI version.
The TL3GA series (3030 package) can be
operated over a range of 0.60.9W while the
TL2FK series (3014 package) can be operated
over a range of 0.20.5W.
Toshiba touted a low forward voltage as
being important to low-power SSL prod-
ucts. The single-emitter TL2FK products
have a typical forward voltage of 2.85V
while the dual-emitter TL3GA products
have a typical forward voltage of 5.7V.
Still, the efficacy of the GaN-on-Si prod-
ucts trails the efficacy of sapphire-based
mid-power LEDs considerably. For exam-
ple, the LEDs substantially trail the mid-
power LEDs that Seoul Semiconductor just
announced.
The mid-power product launch marked
the second major announcement of GaN-
on-Si LEDs from Toshiba. Late last year the
company announced the 1W TL1F1 LED
1309leds_14 14 8/21/13 11:55 AM
-
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news+views
family (ledsmagazine.com/news/10/1/3).
While Toshiba has said that those products
are shipping in volume, we have yet to see a
prominent SSL product that uses the LEDs.
MORE: ledsmagazine.com/news/10/7/18
Osram announces COB and mid-power LEDs
Osram Opto Semiconductors has announced
the Soleriq S 13 family of chip-on-board
(COB) LEDs that delivers 1500 lm from a
light-emitting surface (LES) that measures
just 13.5 mm in diameter. The company also
announced new multi-emitter Duris LEDs,
and an RGB MultiLED family for automotive
applications.
Osram intends the Soleriq LEDs primarily
for use in SSL retrofit lamps and luminaires
designed to replace high-wattage halogen
spotlights (ledsmagazine.com/news/10/8/8).
The LEDs range in CCTs from 27006500K
with a 3000K version delivering typical effi-
cacy of 100 lm/W. The available warm-white
CCT and high CRI make the LEDs suitable
for target markets including retail, restau-
rant, and luxury residential where color
quality is extremely important.
The Soleriq S 13 is an ideal fit for the hos-
pitality and home lighting sector because,
in addition to its high brightness, it covers a
wide range of color temperatures, said Marc
Dyble, product marketing manager for SSL
at Osram. Additionally, the color rendering
index for all color temperatures is over 80.
As a result, the S 13 significantly expands
the application portfolio of the Soleriq LED
family, whose existing E 30 and E 45 versions
are designed for downlights.
The Soleriq S 13 is indicative of a growing
trend toward COB LEDs with smaller LES
diameter and smaller packages that enable
use in lamps and compact luminaires.
For example, Cree recently added COB
LEDs with 6- and 12-mm LES diameters
(see p. 16). The smaller LES enables tighter
beams while efficacy gains still enable
high-lumen designs.
The new S 8 multi-emitter, high-power
member of the Duris series closely groups
the LED chips to deliver very good color
consistency in combination with a high
luminous flux. Designed for directional and
omnidirectional retrofit lamps and indoor
spot lighting, the LEDs are particularly suit-
able for directional lighting in office and
business settings.
In terms of color rendering, the Duris
S 8 has a CRI of more than 80, said Janick
Ihringer, product manager at Osram. An
even higher CRI will be the next step. The
LEDs also deliver high f lux from a small
LES, enabling a simpler interface to opti-
cal elements in an SSL system. Essentially,
the product brings the advantage of simpler
drivers for high-voltage LEDs to the mid-
power space.
Automobile manufacturers, meanwhile,
will have more options in using color
lighting for both function and style with the
MultiLED RGB (red, green, blue) LED from
Osram. The company says that the multi-
emitter LED is useful in lighting instrument
1309leds_15 15 8/21/13 11:55 AM
-
news+views
clusters, backlighting graphics displays,
and in implementing accent, ambient, and
trim lighting.
The packaged LED includes three indi-
vidually controllable emitters. Osram said
the differentiator in the new RGB LED is
the blue emitter both because of the broad
color spectrum and the f lux output of the
blue emitter. The blue emitter produces
energy over the range of 447476 nm. More-
over, Osram said the blue output of 370 mcd
is much brighter than the blue output in
other RGB LEDs on the market. Brighter blue
is important because the color falls at the
edge of the human visual sensitivity range
and humans perceive blue light as darker
than the measured flux level would indicate.
The new LED can offset this darker per-
ception so that customer brightness require-
ments can be met for all color ranges, said
David Rousseau, LED product marketing
manager at Osram Opto Semiconductors.
Whats more, a short-wave blue color has
a pleasant saturated appearance. We have
now succeeded in implementing this color
range in an RGB LED version.
MORE: ledsmagazine.com/news/10/8/4
Bridgelux enhances Vero performance
Bridgelux has announced that the Vero COB
LEDs launched last December are now avail-
able with higher efficacy and tighter color
bins. The company also said that the LEDs
can now be driven at twice the rated current
level, and that the family achieved LM-80
characterization at the end of July.
Bridgelux boasted in the news release of
efficacy as high as 122 lm/W and character-
ized that performance as industry leading.
In reality, those figures were at 25C whereas
many companies now characterize their
LEDs fully at 85C. At the higher tempera-
ture, the tables that Bridgelux distributed
would place the LEDs close to 100 lm/W and
in the same range as products from Cree,
Philips Lumileds, and others. Still, the Vero
product has matched the industry leaders.
The company is also now offering the
LEDs in a choice of 2- or 3-step MacAdam
Ellipse bins. Aaron Merrill, director of prod-
uct line management, acknowledged that
others offer 2-step bins but said Bridgelux
is first to also offer customers 3-step bins.
The question remains as to whether there is
a customer base for a bin between the more
typical 2- and 4-step bins offered by other
companies.
Bridgelux also offers the LEDs in high-
CRI options including the 97-CRI Dcor fam-
ily. Moreover, the Vero LEDs can meet the
requirements of the California Energy Com-
mission (CEC) for CRI R9 scores greater than
50 for the saturated red color sample.
MORE: ledsmagazine.com/news/10/7/15
Cree launches smaller COBsCree has announced two new members of
its CXA family of COB LED arrays including
the CXA1304 with a 6-mm light LES and the
12-mm CXA1816. Moreover, the entire CXA
family is now available in a 95 CRI option.
1309leds_16 16 8/21/13 11:55 AM
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The new COB LEDs broaden the span of
products that can be addressed with the
CXA family. The family of CXA LED arrays
appeals to us because of the wide range of
lumen options available, all at very high effi-
cacy levels, said Michael Lin, CEO of Buck-
ingham Industrial Group. Regardless of the
lighting application that we want to address,
there is a CXA LED array offered that is opti-
mized for it.
The CXA1304 LEDs deliver up to 1034
lm with typical efficacy of 102 lm/W at an
85C operating temperature. The LED tar-
gets luminaires such as small track heads
and downlights, or retrofit lamps such as
small ref lector bulbs. The CXA1861 can
enable replacements for 70W ceramic metal
halide (CMH) spotlights as well as smaller
luminaires and retrofit lamps. The LEDs can
deliver up to 3000 lm.
The entire CXA family is LM-80 tested
and offered across the range of 27005000K
CCTs. The new High CRI CXA versions fea-
ture both the 95 CRI and a typical R9 value
of 85 at 3000K. Cree offers the LEDs in 2- and
4-step MacAdam Ellipse bins.
MORE: ledsmagazine.com/news/10/7/4
Plessey announces silicon-based blue LED
Plessey Semiconductors has announced the
PLB010350 LED that is manufactured on its
GaN-on-Si manufacturing platform. The
22-mm blue LEDs deliver 350 mW of radio-
metric power when driven at 420 mA a
significant jump from the companys previ-
ously announced Si-based LEDs and a prod-
uct that can serve in some general solid-
state lighting (SSL) applications.
Back in April, Plessey had announced
availability of the PL111010 LEDs that were
more of a proof-of-concept for the GaN-on-
Si technology, delivering only a few lumens
from very low drive currents and maxing out
at 25 mA (ledsmagazine.com/news/10/4/2).
These new LEDs can be driven at up to 1A
continuously and 2A pulsed.
Its not clear why Plessey only announced
a blue version of the new LED design. Cer-
tainly the LEDs could be used in remote phos-
phor applications. The 435460-nm dominant
wavelength range is similar to the royal-blue
LEDs from major LED manufacturers that are
targeted at remote-phosphor SSL products.
The company has not said if it will offer a white
phosphor-converted version of the new LED.
In terms of efficiency, the new LEDs are
markedly improved from the earlier product
but still well behind sapphire-based LEDs.
For example, Cree announced the 2.52.5mm
XLamp XB-D LEDs in January 2012 (ledsmag
azine.com/news/9/1/16). The company offers
a royal-blue version of the LED that delivers
450550 mW at 350 mA of drive current.
Plessey said that the new LEDs can be
used in applications including entertain-
ment and decorative lighting as well as in
wall-washing and -grazing applications.
Moreover, the company said the LEDs are
especially suited to any SSL applications
that require pulsed lighting.
MORE: ledsmagazine.com/news/10/7/3
1309leds_18 18 8/21/13 11:55 AM
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LEDsmagazine.com SEPTEMBER 2013 21
+programs funding
DOE revises L Prize
rules for PAR38 lamps
The US Department of Energy (DOE)
has again revised the requirements
for the PAR38 LED lamp competition
within the Bright Tomorrow Lighting
Prize (L Prize) program. Lamps can
now have a slightly wider beam pattern
and the agency reduced some other
burdens on manufacturers.
The PAR38 L Prize competition was
inaugurated in 2008 along-
side the competition
for a 60W-equiv-
alent A-lamp that Phil-
ips won in 2011 (ledsmaga
zine.com/news/8/8/7). The PAR38
competition seeks a replacement for
halogen incandescent lamps. The DOE
had identif ied the A-lamp and the
PAR38 as among the most broadly used
lamps and therefore focused the L Prize
on those products for sockets where
LEDs could deliver the most energy
savings. The nearby photo of an Acu-
ity Brands PAR38 LED lamp is typical
of the product category.
While the A-lamp drew Philips as
an entrant early on and later GE Light-
ing (ledsmagazine.com/news/8/7/1)
and Lighting Science Group (ledsmaga
zine.com/news/8/3/7) each announced
their intention to enter, the PAR38
competition has yet to draw an entry.
The DOE temporarily suspended the
PAR38 competition (ledsmagazine.
com/news/8/1/6) in mid-2011, and then
relaunched it in March 2012 with the
most significant change
The US Department of Energy (DOE) has
published a report on a Gateway demon-
stration of LED streetlights in support of
the Municipal Solid-State Streetlighting
Consortium (MSSLC) that documents tests of
nine LED-based luminaires relative to high-
pressure-sodium (HPS) lights. The Kansas
City, MO trial began in 2011, and reveals that
the LED lights didnt universally best the HPS
incumbents in terms of lumen output or effi-
cacy, but the solid-state lighting (SSL) prod-
ucts did generally deliver more lumens to the
roadway surface and less light spill (ledsmag
azine.com/news/10/8/7). Realize also that the
LED products were installed in February 2011
and therefore use technology that is relatively
outdated at this point.
The project included LED lights installed
in place of 100W, 150W, 250W, and 400W
HPS fixtures. The SSL products ranged from
a 63W fixture used in place of a 100W HPS
lamp to a 291W fixture used in place of a
400W HPS lamp. The measured reduction
in energy varied from 3151% with a mean
of 39%. But the LED lights also emitted 31%
fewer lumens on average.
The LEDs delivered a 15% increase in
mean efficacy although two of the LED prod-
ucts had lower efficacy than the HPS prod-
ucts to which they were compared. Applica-
tion efficacy was more revealing, comparing
the lumens delivered to the target area to
input electrical power. There were still two
SSL products that trailed the incumbents,
although one of the two was not the same one
that trailed in laboratory measured efficacy.
But the advantage for the LED lights was
truly significant in some cases. For exam-
ple, a 130W LED fixture that replaced a
150W HPS f ixture had an
Gateway demonstration for MSSLC reveals LED advantages over HPS
page 22
page 22
1309leds_21 21 8/21/13 11:56 AM
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22 SEPTEMBER 2013 LEDsmagazine.com
+programs funding
appl ication ef f i-
cacy advantage of 83 lm/W compared to
45.1 lm/W. The report noted that both the
LED and incumbent fixtures were in a set-
ting with some spill light from an adjacent
source. But in a 250W comparison with no
spill light, an LED fixture delivered 47 lm/W
compared to 33.6 lm/W for an HPS fixture.
The report also contemplated the impact of
the LED products on maintenance cost. Kan-
sas City has a program in place to monitor
illuminance levels and to replace lighting that
falls below documented design criteria even
if the light in question hasnt failed outright.
The study included an evaluation of lumen
maintenance based on calculated light loss
factors. That projection revealed that two of
the HPS fixtures would require lamp replace-
ment prior to expiration of the expected lamp
life. The same statement is generally true of
some of the LED products, but that replace-
ment is as much as 30 years down the road.
The study did not project actual maintenance
costs, but clearly the SSL products will deliver
a significant advantage.
DOE publishes Snapshot
Report on outdoor SSL
Separately, the DOE has published what it
calls a Snapshot Report on outdoor area
lighting that is collectively based on Caliper
research into LED parking-garage, can-
opy, and roadway-and-area luminaires. The
snapshot highlights include a comparison
of efficacy of the various products that have
been evaluated in the Caliper program. The
bulk of the products have ranged between
7090 lm/W, although there have been
extremes with products coming in under 50
lm/W or over 100 lm/W. But generally LED-
based luminaires are performing better than
legacy alternatives including HPS lighting.
Just two years ago, HPS was viewed as supe-
rior in efficacy to LEDs, although there were
even then factors, such as broader-spectrum
light, that made SSL a superior light source.
Now the DOE has said that the best of the LED
products in terms of efficacy are substantially
higher than alternatives such as HPS.
The report does note that there are areas in
which HPS lighting is still the predominant
choice. The Caliper program has revealed
few choices among LED luminaires that can
replace the 400W HPS lighting used on major
roadways. The research only considers lumi-
naires that include photometric documenta-
tion under the DOE Lighting Facts program.
The report revealed that there are more
canopy luminaires besting 100 lm/W than
such products in the other categories. But
the canopy fixtures generally have higher
CCTs, and cooler color temperature is
directly related to higher efficacy.
Perhaps surprisingly, the report notes
little correlation between color quality or
CRI and efficacy. High CRI is often achieved
through a broader power spectrum, which
can lead to lower efficacy. But evidently the
various approaches taken by manufactur-
ers to boost CRI have at least made any such
relationship invisible.
The agency has tested luminaires with CRI
between 60 and 80, and products with suitable
color rendering for outdoor applications are
plentiful. Indeed, the SSL products generally
render color far better than HPS sources and
that can make objects more detectable from a
distance. The CCT of the tested fixtures typi-
cally falls in the 40006000K range.
MORE: illuminationinfocus.com/news/4/8/1
being the number of sample lamps
needed for a manufacturer to enter
the competition (ledsmagazine.com/
news/9/3/5).
The PAR38 L Prize remains a $5 mil-
lion opportunity for a lamp manufac-
turer along with assurances that the
United States government will buy and
utilize the winning lamp. Philips won
$10 million for the A-lamp competition
but may have spent far more on R&D.
Still, the effort left Philips Lighting at
or near the top of the LED retrofit lamp
technology space.
The latest revisions were made based
on realities of the market, according to
the DOE. The luminous intensity dis-
tribution spec has been expanded to a
maximum allowable beam pattern of
15 from the prior 12 requirement.
The bigger changes may be in eligibil-
ity requirements. The rules had required
usage of LEDs made in the United
States. The DOE will still require that
final assembly of the lamp happens in
the US and that entrants have a business
presence in the US.
A change has also been made in
regard to production requirements dur-
ing the first year of lamp manufactur-
ing. The DOE will no longer require an
entrant to commit to producing 250,000
lamps in the first year after receiving
the L Prize award.
MORE: ledsmagazine.com/news/10/8/1
Gateway from page 21
L Prize from page 21EPA proposes change to Energy Star verification testingThe US Environmental Protection Agency
(EPA) has proposed changes in the annu-
ally required verification testing of lumi-
naires, simplifying the process when a num-
ber of luminaires use the same lamp or light
engine. The changes are especially applicable
to luminaires that use self-ballasted lamps,
such as LED GU24 products that are used in
many products from multiple manufacturers.
There are separate certification and ver-
ification testing programs for Energy Star.
In the case of the luminaires specification, a
certification body (CB) must perform the cer-
tification testing up front before a lighting
manufacturer can use the Energy Star label.
Subsequently, the EPA requires each CB to
perform annual verification testing on 10% of
the base-model luminaires (the base unit in a
family, for instance) for which the CB has per-
formed certification testing. The CB randomly
selects products for verification, although the
EPA as well as other Energy Star partners can
nominate products for verification testing.
A luminaire that uses a replaceable lamp
or light engine must be tested with a spe-
cific lamp when undergoing Energy Star
testing, and the certification only applies to
the luminaire and lamp combination. Manu-
facturers that ship such a product as Energy
Star qualified must ship the lamp and lumi-
naire together.
The certification and verification testing
processes include tests performed separately
on both the lamp and the luminaire with the
lamp installed. But presently this means that
a CB must test identical lamps multiple times
each year in the process of verifying a lumi-
naire. The EPA is now proposing that that a
CB can test a light source once annually and
apply that test data anytime a luminaire is
verified within a 12-month window.
MORE: ledsmagazine.com/news/10/8/2
1309leds_22 22 8/21/13 11:56 AM
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1309leds_23 23 8/21/13 11:56 AM
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+programs funding
EPA marches toward finalizing Energy Star Lamps specBack in mid-July, the EPA released the final draft of the Energy Star
Lamps V1.0 specification that has been under development for more
than two years. The changes from draft 4 that had been published this
spring are fairly minor; the new spec is slated to take effect Sept. 1,
2014. The agency stated an intent to publish the final spec in August,
although that had not happened when we went to press. There were
significant additional comments on the final draft with changes
requested from six companies and two industry associations.
The final Lamps draft is available on the EPA Energy Star Lamps
web page (http://1.usa.gov/164LERy). The specification will ulti-
mately replace the existing Compact fluorescent lamps and inte-
gral LED lamps specification.
The final draft included minor clarifications to draft 4, although
there were significant changes in the dimming requirements sec-
tion. The easiest way to see the changes is to review the actual spec;
the EPA inserted note boxes that concisely explain the changes where
they were made.
In the dimming area, the EPA relaxed the requirements allowing
lamp makers to test their products with as few as five dimmers, and
allowing lamp makers to specify the dimmers with which their prod-
ucts are guaranteed to work. The final draft also removes require-
ments that tried to segment dimmers by circuit topology for gener-
alization of compatibility ratings; the agency noted that its nearly
impossible to identify dimmers by this topology.
The agency added specific language clarifying that the percentage
of light output relative to a dimmer setting is to be stated relative to
a lamp operated at full brightness on a circuit with no dimmer. As we
have covered previously, many lamps on dimmer circuits dont pro-
vide the same maximum flux with a dimmer set to full brightness
compared to the same lamp on a simple switched circuit.
It appears the EPA will leave the existing A-lamp luminous dis-
tribution requirements in place and will not act on the request by
the Soraa-led coalition asking for a two-stage efficacy spec based on
lamp CRI. We covered both of those issues in our article on draft 4 of
the specification (ledsmagazine.com/features/10/5/8).
Earlier drafts had more stringent requirements for omnidirec-
tional lamps than what will be in the final document. The EPA said
in a cover letter that it would further examine distribution require-
ments after publication of Lamps V1.0. But the tone of the state-
ment implied a further loosening of requirements, perhaps based on
intended applications.
The final draft did not acknowledge Soraas latest request for a
change in efficacy requirements (ledsmagazine.com/news/10/6/3).
Draft 4 had noted the coalitions initial request and that there were
sufficient 90-CRI lamps on the market delivering the existing effi-
cacy requirements, thereby making any change unwarranted.
1309leds_24 24 8/21/13 11:56 AM
-
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DOE debunks claims of LED light hazardThe DOE has issued a fact sheet that refutes claims regarding inher-
ent dangers of LED-based lighting due to an excess of energy in the
blue end of the human visual sensitivity spectrum, and concludes that
white LED light is no more hazardous than light from other sources.
The presumed problem is founded on the fact that phosphor-con-
verted white LEDs are based on a blue LED, with the phosphor pro-
ducing the white light. Some of the blue photons pass through the
phosphor; there is research documenting that excessive blue light can
disturb our circadian rhythm and cause other maladies. Others have
claimed that excessive blue light may damage eye cells.
The DOE fact sheet, however, explains that all light sources have
energy in the blue area of the spectrum. Blue energy is necessary for
proper color rendering, and blue light is proven to be beneficial for
alertness when experienced in the morning.
The DOE goes on to say that LED lighting has no more blue energy
than lights of the same CCT based on other types of sources. If there
were an excess of blue energy in an LED light, it would impact the
CCT. The fact sheet also explains that, even with excessively bright
lighting, human response mechanisms such as blinking or looking
away typically protect the eye from damage.
The DOE concluded that lighting products should meet photobio-
logical safety standards including CIE S009-2002, ANSI/IES RP27,
and IEC/EN 62471. We ran a three-part series of articles on the topic
last year (ledsmagazine.com/features/9/2/9).
DOE documents residential
energy use for lighting
The DOE has published research conducted by the Pacific Northwest
National Laboratory (PNNL) that documents residential lighting
consumption across the nation. The report entitled Residential
lighting end-use consumption study: Estimation framework and
initial estimates is accompanied by spreadsheets that allow data
filtering and an interactive US map (http://1.usa.gov/13eQG01).
The report details lighting use by lamp characteristics, house-
hold characteristics, and where lamps are used within a home.
The results include hours of use statistics, along with energy used
broken down by geography.
Massachusetts, New York, and California were identified as
using the least power for lighting, with the states averaging less
than 1500 kWh/year in each home. In contrast, Idaho, Montana,
Utah, Wyoming, Missouri, and Arizona average more than 2100
kWh/year. The national average is just over 1700 kWh/year.
The PNNL gathered data from recent regional and national
studies including end-use metering studies correlated with
household characteristic and lighting product inventory data.
Extrapolations were necessary in some regions where complete
data wasnt available. But researchers verified the accuracy of
estimates for California, lending credibility to the entire data-
set. The methodology will enable simple updates as more regional
research becomes available.
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LEDsmagazine.com SEPTEMBER 2013 27
conference report | THE LED SHOW
The LED Show got off to a quick start
on August 14, with the first session
asking the question, Can LEDs
really continue to improve at the rate they
are now? Ultimately the speakers from
Philips Lumileds, Nichia, and Cree focused
more on how to meet solid-state lighting
(SSL) system quality and cost goals with dif-
ferent LED technologies. The discussion was
certainly spirited as the competitors clearly
see different component paths that will lead
to broader SSL deployment.
The 2013 rendition of The LED Show
topped all previous shows with more than
2,600 attendees and an exhibit hall with
more than 100 booths. The conference pro-
gram included 35 industry experts and the
attendees added to the learning experience
with outstanding comments and questions
following each session. The September issue
of LEDs Magazine went to press right as the
show ended so we will have limited coverage
here, but the opening session on packaged
LEDs was extremely compelling.
Efficacy roadmaps
Chad Stalker, regional marketing manager
for the Americas at Lumileds, led off and
said up front that future efficacy advance-
ments will come more at the system level
than the component level. He said that LEDs
will continue to improve but at a slower rate.
He added, LED systems will continue to
drive the improvement.
Stalker showed the US Department of
Energy (DOE) roadmap for SSL and how the
agency adjusted the efficacy plateau in 2012,
extending the potential for more energy sav-
ings. Stalker said, System integration is
what is driving those curves back up.
Still, its advancements at the component
level outside of efficacy in many cases
that can improve system efficacy and deliver
better quality light. Indeed, Stalker said the
industry needs efficacy balanced with func-
tionality and good light quality, and of course
cost comes into play.
He said better red LEDs
mixed with phosphor-con-
verted white LEDs are crit-
ical to good color rendering
at warm CCTs. The white
LEDs need to be very high
in efficacy and can be off
the blackbody curve as long
as you have good red LEDs,
and Stalker noted that those
products are available. More-
over, he said that you can cre-
ate cost-effective fixed-CCT
designs with a simple driver
or add complexity for incan-
descent-like dimming.
Of course, Philips has also
invested heavily into tunable
color with its Hue lamps that
rely on a lime-green LED, and
Stalker said that green LED
advancements are critical
for quality and cost-effective
tunable products. When ques-
tioned about the Lumileds
lime-green LED, Stalker
said the company had made
material advancements to
achieve high-efficiency green,
whereas other manufacturers
are using phosphor to try and
deliver efficient green LEDs.
One other questioner brought to light
an issue that exists for documenting and
projecting quality in color SSL products. The
LM-80 test standard is specific to white LEDs.
For now, Stalker said there is no standard way
to document LED performance for color-
Packaged LED discussion provides
rousing start at The LED Show
Cree, Philips Lumileds, and Nichia presented conflicting views on the future of packaged LEDs,
although all agree that the components will continue to advance, and SSL system design is the key
to better lighting products, reports MAURY WRIGHT.
The LED Show 2013 topped all previous shows with
more than 2,600 attendees and an exhibit hall with
more than 100 booths.
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28 SEPTEMBER 2013 LEDsmagazine.com
conference report | THE LED SHOW
tunable products, but he expects future work
on the problem to focus at the subsystem level
rather than on LEDs.
Mid-power LEDs
Erik Swenson, manager of LED sales at Nichia,
took the stage next and focused almost exclu-
sively on mid-power LEDs. He said that those
components are improving more rapidly than
high-power devices in terms of efficacy and
offer better quality and aesthetics that better
match many application requirements.
Nichia remains the largest LED manu-
facturer in the world. Swenson said that
the company is making 3 billion packaged
LEDs monthly, and that is three times the
volume of the nearest competitor. In look-
ing at future advancements, Swenson said
that the LED component industry is at the
maturity level of a college student, indicat-
ing significant headroom for improvement.
Pushing the mid-power theme, Swenson
also said the devices offer an economy-of-
scale advantage that high-power devices can
never match. He said that the Nichia 757 LED
is used in applications ranging from street-
lights to retrofit lamps to display backlights
to automotive applications. That broad appli-
cability will presumably deliver an increasing
cost advantage as Nichia manufactures more
of the same product.
Without question, high volumes are the
key to low-cost manufacturing in the semi-
conductor world. But what weve seen in LEDs
in recent years are components optimized for
specific applications, especially from Cree
and Lumileds. Those companies try to max-
imize volumes of the same wafers through
the epitaxial process and then deliver many
different products, for example, with multi-
ple emitters or specialized optics, in the back
end of the manufacturing process.
Swenson said mid-power LEDs also offer a
yield advantage in manufacturing. His rea-
soning was that if you have the same num-
ber of bad die on mid-power and high-power
wafers, with far more mid-power LEDs per
wafer, then the mid-power yield is bet-
ter. That argument rang hollow, however,
because a bad area of a wafer could easily
impact multiple mid-power die. Still, the
fact that Nichia focuses on making higher
volumes of a single product would improve
yield throughout the manufacturing process
including packaging.
High-voltage LEDs
Paul Scheidt, product marketing manager
at Cree, was last up in the LED session, and
that provided him some leeway to state a case
that couldnt be immediately refuted. He also
began focused on the system-level problem to
make the point that LEDs are a decreasing
cost factor in SSL products relative to other
things such as drivers, thermals, and optics.
To frame a system-level discussion,
Scheidt presented a reference case of a 400-
lm, 40W equivalent retrofit lamp with a
3000K CCT and 80 CRI. He went through dif-
ferent product design scenarios that might
be used to realize such a lamp.
The AC-LED approach is one possibility
Scheidt considered, because that technol-
ogy presumably eliminates the driver part
of the cost equation. But Scheidt said AC-
driven designs require more LEDs because
not all of the LEDs are driven at any point in
time. He said even the latest AC technology
only achieves 70% LED utilization.
Moreover, Scheidt said AC systems have
flicker problems that simply cant be solved
because all of the LEDs are turned off at
times. Switching them on and off a lot cre-
ates the worst flicker possible, said Scheidt;
he added that the designs cant pass Energy
Star certification requirements. He further
said that EMI problems require extra cir-
cuitry or essentially a driver IC.
Seoul Semiconductor was exhibiting at
the show and asked to respond to Scheidts
comments. Seoul director of marketing
Theron Makley said that the latest AC-LED
modules such as Acrich2 use a combina-
tion of technologies to overcome the issues
associated with earlier products. He said,
These advanced AC-LED modules are used
in many applications, such as replacement
lamps, downlights, streetlights, and flush-
mount fixtures.
Crees Scheidt also addressed mid-power
LEDs, saying that in many cases the LEDs
will shift in color with
unacceptable results in
as little as two years.
He said the problem is
especially significant
as you drive the LEDs
harder and try to limit
the number of LEDs in
the system.
Most of Scheidts com-
ments on mid-power
devices were directed at
LEDs in plastic pack-
ages. Its worth noting
that Nichia has said its
757 LED actually uti-
lizes a ceramic-com-
posite package. The
c omp a n y h a s not
revealed details of the formulation, but
Swenson has previously said that the
package delivers lumen and color mainte-
nance that can match high-power LEDs.
Scheidt concluded that in many appli-
cations, such as retrofit lamps, high-volt-
age, high-power LEDs offer the best system-
level approach. He said such components
simplify the driver design and also match
the application requirements of light dis-
tribution and quality. In fact, Scheidt said
that SSL products such as streetlights and
ceiling troffers, which use large numbers
of single-emitter LEDs, have always been
high-voltage designs at the driver level.
And those products are broadly success-
ful and feature SSL-industry-leading sys-
tem efficacy.
Clearly the session provided food for
thought and left questions unanswered,
although its also obvious that the compo-
nents will continue to improve and product
developers face a complex set of choices. The
remainder of the conference offered many
more insights and we will provide more cov-
erage in the fall edition of our Illumination
in Focus publication.
Chad Stalker of Philips Lumileds, among several presenters
in the opening session at The LED Show, discussed how to
address future solid-state lighting quality and cost goals.
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LEDsmagazine.com SEPTEMBER 2013 31
conferences | SIL EUROPE PREVIEW
Sponsored by PennWell Corporation
and organized by its subsidiary
Strategies Unlimited, the 4th annual
Strategies in Light (SIL) Europe confer-
ence will be held in Munich, Germany from
November 1921, 2013. Set to a theme of
Developing the new ecosystem of lighting,
the conference program will feature presen-
tations on the challenges and opportunities
facing the European lighting industry as it
makes the transition to solid-state lighting
(SSL). Conference presentations will be made
by representatives from all segments of the
LED vertical supply chain, from component
suppliers to lighting designers and retailers.
Although still in the early stages of market
penetration, the adoption of LEDs in a vari-
ety of lighting applications is on a dramatic
growth path that is apparently irreversible
(ledsmagazine.com/features/9/12/6). Still,
there are many challenges, both techni-
cal and market related, that must be over-
come before LED lighting achieves adop-
tion on a large scale. SIL Europe will address
these challenges from multiple perspectives.
Existing and new market opportunities will
also be explored, with a focus on the driv-
ing factors of the applications for which LED
lighting is best suited.
SSL strategies and speakers
SIL Europe 2013 will offer three full days of
conference activities. The first day is devoted
to workshops and the SSL Investor Forum.
This years workshops will address two top-
ics of key interest to the LED lighting com-
munity: Beyond photonics Quality met-
rics for solid-state lighting, presented by
Cree, and Solid-state lighting measure-
ments From basics to recent develop-
ments, presented by Instrument Systems.
The SSL Investor Forum, sponsored by
Berenberg, is being expanded to a full day
to provide presentations by exciting new
SSL startups as well as large, publicly-traded
lighting companies.
The second day begins with the Keynote
and Plenary Sessions, discussed in more
detail further on. For 1-1/2 days following
the Keynote and Plenary Sessions, the con-
ference will be divided into two parallel
tracks: Market and Technology. The Mar-
ket Track is discussed in this article, while
the Technology Track will be addressed
in a subsequent article. For the first time,
several of the conference sessions will fea-
ture panel discussions that allow speakers
to communicate with delegates in a more
interactive manner.
Another first at the 2013 event is the
introduction of various free presentations
offered on the exhibit f loor. Tailored to
the interests of exhibit-only visitors, these
presentations will range from new product
introductions by manufacturers to sem-
inars on the latest developments in stan-
dards, programs, and supporting activities
for the European SSL industry.
SIL Europe 2013 will feature high-level
speakers from well-known European light-
ing companies. Keynote speakers will
include Peter Laier, chief technology offi-
cer, Osram GmbH, and Jeffrey Cassis, SVP
and general manager, Global Lighting Sys-
tems, Philips Lighting. Continuing the tra-
dition established at the inaugural event
in 2010, Strategies Unlimited will provide
its most recent market review and fore-
cast of the global LED lighting market.
Plenary speakers will include Klaus Vam-
berszky, EVP technology, Zumtobel Group,
and Zoltan Koltai, EMEA technology direc-
tor, GE Lighting. In addition, Marc Led-
better, manager of advanced lighting at
the Pacific Northwest National Laborato-
ries, will give a plenary address on the US
Department of Energys role in the devel-
opment of SSL in America.
SIL Europe addresses the development
of a new lighting ecosystem
The adoption of LED lighting brings numerous challenges and opportunities to light, as
the market track at the 2013 Strategies in Light Europe event will demonstrate, reports
BOB STEELE.
BOB STEELE is a Consultant, LED Practice
with Strategies Unlimited.
At SIL Europe, representatives from the LED vertical supply chain as well as market
analysts will focus on the challenges and opportunities facing the lighting industry.
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32 SEPTEMBER 2013 LEDsmagazine.com
conferences | SIL EUROPE PREVIEW
Market track: Drivers,
development, and design
The market track will begin with a session
that addresses some of the key issues asso-
ciated with pushing LED lighting into the
marketplace. Anna Weiner Jiffer, business
area manager for global lighting at IKEA,
will discuss the companys transition into
one of the leading worldwide retailers for
LED lighting products. Brad Koerner of
Philips Lighting will address the paradox
of standardization LED light engines
and mass customization. Kasper Kofod
of Energy Plano will review some of the
major EU initiatives for SSL, including
the Ecolabel program and Green Public
Procurement criteria.
Following a successful workshop address-
ing the biological effects of lighting in 2012,
SIL Europe will offer an entire session on
this topic for the first time. The featured
SIL Europe 2013 will feature high-level speakers from well-known European lighting companies.
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LEDsmagazine.com SEPTEMBER 2013 33
5 - Y E A R W A R R A N T Y
1 0 - 3 0 0 W A T T M O D E L S
4 8 0 V I N P U T M O D E L S
C U S T O M D E S I G N &
M O D I F I C A T I O N S
D I M M I N G O P T I O N S
L E D
D R I V E R S
R E L I A B L E
E C O N O M I C A L
I N N O V A T I V E
A D A P T A B L E
D C I N P U T M O D E L S
E X T R E M E
C O N D I T I O N S &
T E M P E R A T U R E S
C O M P A C T D E S I G N S
U S E N G I N E E R I N G
S U P P O R T
AU T E C . C OM
conferences | SIL EUROPE PREVIEW
speaker in the session will be the world-renowned expert on chro-
nobiology, Professor Till Roenneberg, vice-chair of the Institute of
Medical Psychology at Ludwig-Maximillian University, whose pre-
sentation is entitled Lighting for life. Other speakers in the ses-
sion include Volker Lindenau of A. T. Kearney, who will speak on the
market potential of biologically efficient lighting, and Dieter Lang of
Osram, who will address the benefits and challenges of biologically
efficient lighting applications.
As always, market development will be a major focus of the con-
ference. In the Market Development session, Annetta Kelso of Philips
Lighting will provide insight on managing the second phase of the
SSL market transformation (for insight into the initial transforma-
tion phase, see Kelsos November/December 2012 article on Europes
LED lighting market at ledsmagazine.com/features/9/12/12). Leonid
Moiseev of Optogan will provide a perspective on how LED lighting
selection criteria vary in different European regions, and Juergen
Waldorf of ZVEI will discuss
the successful implementa-
tion of an LED market initia-
tive in Germany.
As an important and
growing application of LED
lighting, outdoor will be a
featured topic for SIL Europe
2013. Koen Van Winkel of
Schreder will provide an
overview of some of the key
emerging technology trends
in roadway and street light-
ing. Evgeny Dolin of the LEDs
and LED-Based Systems Rus-
sian Manufacturers Non-
profit Partnership will shine
a light on the emerging market for LED outdoor lighting in Russia.
Marc Guiraud of LightingEurope will provide an update on the ESOLI
project to demonstrate energy-saving outdoor lighting in Europe.
The market track will also have a session that will focus on LED
lighting projects and experience from the end user side, rather than
the supplier side, as has been the customary approach in previous
conferences. Florian Felsch, of lighting design company Livebau
Solutions, will give a presentation on enhancing value through the
right illumination, targeting the premium automotive industry.
Franois Seguineau of Toshiba Europe will discuss smart lighting
from the perspective of increasing the market opportunities for SSL
by enhancing the end users experience.
Although reliability does not at first appear to be a market-related
issue, in fact it has a strong impact on market acceptance of a new
technology such as SSL. In this regard, Michael Schremp of Munich
Re will present some new ideas for risk management solutions that
can protect SSL manufacturers against warranty claims. Looking
more at the component level, Matteo del Lago of the University of
Padova will provide insight on the characterization and reliability
of high-power LEDs for indoor lighting.
More information on Strategies in Light Europe 2013 can be found
on the conference website at sileurope.com.
Attendees will learn what's driving
LED lighting applications.
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LEDsmagazine.com SEPTEMBER 2013 35
Computer-aided design (CAD) technol-
ogy has been applied in many tech-
nology segments and is increasingly
important in the optical space. Optical sim-
ulation can speed product development and
ensure that new products provide optimal
illumination. However, the available opti-
cal CAD software tools are largely proprie-
tary, including the file formats used to store
light-source ray files. An ongoing Illuminating
Engineering Society (IES) effort is seeking to
standardize ray files to ease the burden on
light-source suppliers, including LED manu-
facturers, and make optical CAD tools more
broadly applicable.