Bridgelux Launches New Chip-on-Board LED Arrays with "Human Centric" Design Approach
LIGHTimes News Staff
October 28, 2014...Bridgelux of Livermore, California USA, will debut its new Vero® Decor
Series™ Class A Chip-on-Board (CoB) LED array products at the Hong Kong
International Lighting Fair 2014. The launch of the Decor Series Class A arrays
marks Bridgelux's new "human-centric" approach to product development and color
targeting. The company has started looking at a relatively new metric called
the Gamut Area Index along with the Color Rendering Index.
The Gamut Area Index (GAI) in short measures how light and color appeal to
and are perceived by the human brain. GAI (Gamut Area Index). The gamut area of
a light source is that area enclosed by a polygon within a chromaticity
diagram. The greater the separation among the selected points, the greater the
gamut area. The Gamut Area Index is the difference between the Gamut Area of a
specific light source and a reference light source.
The company contends that while CRI only measures color distortion, the
Gamut Area Index (GAI) measures color saturation and strength to more
accurately reflect the holistic effect of light and how a person will perceive
color. Bridgelux says its Decor Series Class A arrays are engineered at the
optimal GAI and CRI combination based on human perception of light.
The company says it will make the arrays available through global channels
Bridgelux says that the new Decor Series Class A arrays are the first
products to use the full Class A Color specification from the Lighting Research
Center (LRC) at Rensselaer Polytechnic Institute and the Alliance for
Solid-State Illumination Systems and Technologies (ASSIST).
In a long term study with funding from ASSIST, researchers at the LRC
developed what they call, Class A Color. The study examined preferences in
color rendering and how people perceive white light sources along with the
white hue or tint of the light source. Bridgelux reportedly developed prototype
lamps based on the Class A Color spectral requirements for the LRC to use in
"Class A Color has been broadly tested and 'tuned' to ensure the most
pleasing blend of naturalness and vividness based on subjective human
perceptions," said Jean Paul Freyssinier, senior research scientist at the
Lighting Research Center. "A majority (75 percent) of those tested from
around the world agree that Class A Color light sources provide the best color
rendering and optimum saturation levels. It's consistent lighting that won't
Bridgelux insists that Class A colors are inherently more vivid and whites
are their whitest due to a broader spectrum of colors and saturation.
According to Bridgelux, the Decor Series of Class A LED Arrays achieve a
balance of color properties that match how people perceive color to provide
superior color quality. Bridgelux further asserts that the arrays provide a
better return on investment when compared to traditional halogen and ceramic
metal halide bulbs.
Decor Series Class A LEDs boast 30 percent less energy consumption, 70
percent less heat generated, and have a projected lifetime of about 20 times
longer than halogen or metal halide light sources.
In retail settings, Decor Series Class A LED arrays appeal to people's
natural perception of light, helping to drive improved aesthetics, increased
visits, customer purchases, and revenue per square foot.
"The launch of our Decor Series Class A LED arrays is a game changer for
Bridgelux, our customers and the industry," said Brad Bullington, CEO of
Bridgelux. "Light has the power to influence how people behave, what they
purchase, their productivity and their mood. Our new human-centric approach
harnesses that potential to help our customers create custom light experiences
that deliver great aesthetics and a tangible financial impact."
Bridgelux Vero Decor Series Class A arrays will be available in 4000 K and
3000 K CCT. They are designed for applications including high-end retail,
hospitality, museums and commercial spaces.
Luminus launches 1W SMD LED with 170° Emission Angle
LIGHTimes News Staff
October 28, 2014...Luminus Devices Inc based in Billerica, Massachusetts, USA, has launched the
XNOVA Cube, a 1 watt SMD LED with a 170° viewing angle. Luminus contends that
the XNOVA Cube improves system efficacy, reduces cost, and simplifies
Unlike traditional mid-power LEDs, which Luminus says were originally
designed for LCD backlighting, Luminus designed the XNOVA Cube specifically for
illumination applications requiring high quality of light. The small 1.9mm by
1.9mm package has a 170 degree viewing angle, which the company claims is the
widest in the industry. Luminus claims that the XNOVA cube emits more light
than any mid-power LED.
“The XNOVA Cube has opened-up new design options for our customers
in the highly competitive panel lighting, linear and omni-directional lamp
markets,” said Jim Miller, executive VP of sales & marketing.
“They are able to reduce LED count by as much as 30% and at the same
time cut power consumption by 10%, which enables further cost reductions in
drivers, thermal systems, and optical components.”
Luminus Devices is exhibiting its XNOVA illumination product line at the
Hong Kong International Lighting Fair (27-30 October).
Cree Lowers System Costs with New SC5 Platform and XBH50 LED
LIGHTimes News Staff
October 23, 2014...Cree, Inc. has introduced an LED with the company's SC5 Technology™
Platform. The new platform powers the company's Extreme High Power (XHP) LEDs.
As with their previous LED developments, Cree has begun approaching LEDs not as
the biggest contributor to the cost of a lighting system, but as one of several
contributors including the heatsink and the optics. This approach has lead Cree
to create smaller and brighter LEDs that operate at higher temperatures. The
approach has further lead Cree to develop its XHB50, which the company says
doubles light output and greatly lowers system cost. Cree claims its new class
of LEDs can reduce system costs by up to 40 percent in most lighting
The SC5 platform and the new class of LEDs use the company's silicon carbide
technology. Silicon carbide allows the LEDs to operate at higher temperature
(up to 105 degrees C). At the same time, the new LED has double the light
output of previous iterations with the same efficiency, but in the same
footprint. The LED on silicon carbide that can run at higher temperatures does
not need as large of a heatsink. This translates to lower cost for the
heatsink. Furthermore, the higher output and higher lumen density means that
fewer LEDs are needed for each application, and these take up less PCB space
and have a lower PCB mounting cost (because there are fewer). In turn, this
translates to smaller and less expensive optics.
Cree says its advancements in epitaxial structure and chip architecture go
into the SC5 platform. The XHP50 runs on either 6- or 12-Volts, and has a new
solder pad layout that allows either 6- or 12-volt operation without additional
The first of the new class of LEDs is the XBH50. The XBH50 has an L90 of
50,000 hours. According to Cree, the longer projected lifetime comes from the
LED's ability to operate at up to 105 degrees C. The XHP50 LED delivers up to
2250 lumens at 19 watts from a 5.0x5.0 mm package. Cree contends that at its
maximum current, the XHP50 provides twice the light output of the
industry’s brightest single-die LED, the XLamp XM-L2 LED, at a similar
lumens per watt and without increasing the package footprint.
Chuck Swoboda, Cree chairman and CEO said, “The SC5
Technology™ Platform redefines what is possible in high-power LEDs by
doubling the lumens out of a single LED, giving lighting manufacturers the
flexibility to innovate significantly lower cost systems. This new platform
establishes a new benchmark for LED lumens per wafer, which we believe will
define the long-term success of our industry. This also validates our belief
that high-power LED technology enables the best lighting system designs and a
better lighting experience for end customers.”
“LEDs are no longer the most expensive portion of an LED lighting
system, but they fundamentally determine the overall system performance and
cost,” said Dave Emerson, vice president and general manager for
Cree LEDs. “While other LED manufacturers only promise incrementally
lower LED cost, our new Extreme High Power (XHP) LEDs leveraging the SC5
Technology™ Platform directly address the increased burden that thermal,
mechanical and optical elements now place on total system cost.”
Philips Lumileds Launches New Luxeon CoB LEDs for Spotlights
LIGHTimes News Staff
October 21, 2014...Philips Lumileds has introduced a new compact COB LED array with a small 6.5
mm light-emitting surface that is ideal for spotlights. The small Luxeon CoB
1202 array boasts the highest center beam candle power available. The company
says that its small size makes it perfect for PAR and other directional lamps.
The Luxeon CoB 1202s is also available with Philips Lumileds' CrispWhite
Technology, which the company says produces a high color rendering index and
for rich whites, vibrant reds and other colors.
“The 1202s lifts the bar even higher by producing light output in
a smaller, 6.5 mm LES that was only possible previously in 9 mm LES arrays. In
addition, the 1202s does so with a superior CBCP, delivering 65,000 candelas at
a 10˚ beam angle,” said Ahmed Eweida, product manager for the
Luxeon CoB line.
The company first introduced its CrispWhite Technology for retail lighting
in July 2014.
“The response has been tremendous. Shop owners and their customers
clearly prefer LED lighting with CrispWhite over CDM and halogen,”
said Eric Senders, Product Line Director.
The Luxeon CoB range including the 1202s is available in a very warm, 2200K
version for applications requiring a candlelight-like glow. Philips Lumileds
says lighting designers are using the Luxeon CoB 1202s to produce highly
reliable directional lamps. The company has published a full list of compatible
drivers, optics and holders to help speed the time-to-market for downlights and
Mass Production Begins on Seoul Semiconductor’s Acrich MJT 3030
LIGHTimes News Staff
October 14, 2014...Seoul Semiconductor of Seoul, Korea, made available the Acrich MJT 3030 a
new LED in the company's Acrich MJT product family. The company says it
improves on performance and enables lower system costs. The Acrich MJT 3030
employs Seoul Semiconductor’s high-reliability Acrich MJT technology.
According to Seoul Semiconductor, the MJT 3030 LED offers high lm/$ and
improved performance compared to previous versions in a mid-power package.
This new Acrich series measures 3.0mm x 3.0mm and delivers 103 lumens at
40mA at 22V, 25° C, 3000K. The 3030 LED can be driven to a maximum current of
60mA at high voltage to provide up to 155 lumens. At high voltage and 60 mA it
consumes 1.5 W for over 103 lm/W efficacy. The company designed the LED for
high-lumen applications that require high reliability and low cost. Seoul
points out that Energy Star® qualification is easier with the already completed
6,000 hours LM-80 data of the Acrich MJT 3030 LED.
The LED uses the company’s high voltage architecture and its Acrich
MJT "Multi-Junction chip Technology". The company claims that the Acrich MJT
3030 LED eliminates the tradeoff between size and efficacy. The LED allows
operation in either DC or AC mode, depending on your configuration. The Acrich
IC reportedly eliminates the need for an AC/DC converter and is said to improve
reliability and simplify integration when making lighting fixtures.
The MJT 3030 boasts low THD and a 0.97 power factor both help save energy
and optimize designs. In the DC-mode, according to the company, the low-current
use of the Acrich MJT 3030 can reduce the cost of the power supply and lower
the number of components. The company contends that the Acrich MJT 3030 LED
optimizes performance in both AC and DC configurations.
"The new Acrich MJT 3030 LED combines the improved performance and high
lm/$ with the reliability of the MJT technology enabling lighting manufacturers
to create new innovative solutions to address a wide range of lighting
applications,” said Seoul Semiconductor executive vice president of
lighting sales, Jay Kim.
Luminus XNOVA chip-on-board LED Arrays Complete 6000 Hr. LM-80 Testing; Company Offers Limited 5-year Warranty on the Arrays
LIGHTimes News Staff
October 9, 2014...Luminus Devices Inc of Billerica, Massachusetts USA reports that the
company’s XNova COB LED arrays have completed 6000 hour LM-80 testing.
The company says that the arrays demonstrated robust lumen maintenance and long
term color stability under extreme conditions. As a result, the company has
begun offering a five year limited warranty for the XNOVA family of
chip-on-board (COB) arrays designed for both indoor and outdoor directional
“Our XNOVA COB arrays have already been recognized by customers as
having industry-leading efficacy, value, and quality of light, and now we have
long term data and the 5 year warranty to give customers peace of mind knowing
that their fixtures and bulbs will comply with Energy Star and deliver
consistent performance for many years to come," says Jim Miller,
executive, VP of sales & marketing for Luminus. "Our mission is to help
our customers achieve new levels of performance in their end products, so that
they can gain advantages over their competitors, and this 5 year warranty helps
our customers confidently position themselves as providers of robust, long
lasting bulbs and luminaires."
Osram Opto Introduces Better Performing Oslon Square LEDs
LIGHTimes News Staff
October 2, 2014...Osram Opto Semiconductors debuted the second generation of its Oslon Square
family of LEDs. The company says that the lumen maintenance and color stability
of the new Oslon Square versions are significantly better than their
predecessors. An increased junction temperature, lower thermal resistance, and
an extended range of driving conditions are also characteristics of the new
The new Oslon Square are available with three different color rendering
indexes (CRI) and come with CCTs (correlated color temperatures) between 2,400
and 6,500 Kelvin. They can withstand high ambient temperatures particularly
well as the prior versions did. A further optimized heat dissipation that
allows a higher junction temperature. This higher allowable junction
temperature translates to an improved lifetime over its predecessors that have
shown a lifetime of more than 100.000 hours at typical application conditions.
The LEDs are measured and binned at 85 degrees Celsius, which the company says
is very close to their temperature in real lighting applications. This hot
binning helps ensure uniformity even with high temperatures.
The new line of LEDs is flexible because of its wide range of CRI and CCT
options. So, they can be used in applications depending upon the desired CRI
and CCT of the product. The CRI 70 versions can be employed in street, tunnel,
and other outdoor or industrial lighting. The company says that the CRI 80 and
90 LEDs are ideal for accent lighting and spotlights in shops and museums,
inserted in retrofits and fixtures, or for stage lighting. All members of the
Oslon Square family including previous versions have the same footprint (3.0 mm
x 3.0 mm), a viewing angle of 120°. Furthermore, all of the Oslon Square LEDs
are certified under the LM-80 long lifetime quality standard.
Philips Lumileds Launches Matrix Platform
LIGHTimes News Staff
September 23, 2014...Philips Lumileds reported the launch of its new Matrix Platform solutions. The Matrix
Platform consists of turnkey LED solutions using Luxeon LEDs as well as
components and optics assembled on a wide selection of board types. The company
launched the platform with two product lines—the Luxeon XR on rigid
substrates and Luxeon XF on flexible substrates.
“More than ever, luminaire manufacturers need robust solutions that
meet their specific design requirements. That need, together with today’s
time-to-market pressures, inspired our Matrix Platform,” said Viral
Hazari, Product Line Director for the Matrix Platform. Based on customer
requirements, Philips Lumileds can provide Luxeon XR and Luxeon XF solutions
designed with any Luxeon LEDs. Additionally, there are both
“off-the-shelf” and “built-to-spec” options.
The company says that luminaire makers/designers with Matrix Platform
solutions benefit from simplified supply chain, access to Luxeon performance,
and faster time-to-market.
“Philips Lumileds sees manufacturers quickly moving toward boards and
modules to meet their time-to-market goals and indeed we have been working with
select customers for some time to understand and enhance the value we could
provide with these solutions,” said Hazari. The company’s
production line in Penang, Malaysia dedicates 12,000 square feet of capacity to
Matrix Platform solutions. “We can rapidly turn around new designs -- in
many cases within two weeks of design approval.”
The company says that the Luxeon XR-3535L for troffer applications, its
first rigid substrate module product, provides uniform, distributed light. The
80 CRI product comes in color temperatures of 3000K, 3500K or 4000K and
achieves an output of 1320 to 1515 lumens and an efficacy as high as 160 lm/W.
The Luxeon XF-3535L offers 1100 to 5070 lumens at an efficacy as high as 160
lm/W on a flexible substrate.
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