... When transformational technology is introduced to a 100+ year old industry, one of two things happens: A) It changes the technology in the market or B) It changes everything. We've long held that LED lighting will change everything about lighting, but have only nibbled at the edges of how... Read the editorial...
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to your Single and Multi-chip Packaged LEDs news channel!
The
opportunities presented by the increasing rapid adoption of high brightness LEDs,
in all their forms and applications, represents nothing short of a "digital
revolution" for a previously "analog" world. LEDs are having a
substantial disruptive effect on a number of established technologies, and where
there is disruption, there is an intense need for information.
LIGHTimes Online is here to serve the information needs of the LED industry
supply chain, as well as integrators and non-architectural application solution
providers with technology, product and market news updates for these rapidly evolving
devices. Our readership also includes LED packagers, technology enablers and service
companies seeking the the answers to how best to meet their customers' needs.
For
architectural lighting and applications news of interest specifically to lighting
designers, specifiers, and architectural lighting decision makers, along with
luminaire designers, lighting system integrators and lighting subsystem developers,
please visit our sister publication, Solid
State Lighting Design.
SSL
is booming and the 2011/2012 Summit Series is coming back to keep the message
on quality
Launched in 2008, the SSL
Summit will bring the quality story to New York City in October 2011, and
then back to LA in March 2012. At every one of the Summit events, the feedback
remains consistent: Just what we need, do it again soon. The Summit brings together
lighting decision makers with industry thought leaders, pioneers, and innovators
from the across the solid state lighting eco-system.
Continuing the tradition, 2011/2012 will continue
to be all about quality, quality, quality.Showcase
participants and sponsors are vetted to separate the wheat from the chaff
(have your IES LM-79 test reports ready!). Last year's event in NYC included
representatives of over 100 million square feet of developed property, and the
one thing we don't want to leave out for 2011 is you! Look into the series information
at www.SSLsummit.com for the details.
Sponsorships are available for the full series.
June 18, 2013...Osram Opto Semiconductors has introduced the Microsideled 3806 for display backlighting.
Osram Opto says that the MicroSideled 3806 ensures stable light conditions on the display, and the brightness of the LED which comes in white and blue, remains constant throughout its lifetime. The Microsideled 3806 alsos has what the company says is particularly impressive efficiency that is ideal for portable devices such as tablets and smartphones.
The MicroSideled 3806 has been designed specifically to meet these requirements of multifunctional devices such as tablets, ultrabooks and even smartphones that require high brightness levels and good color rendering without draining the batteries too quickly. Osram Opto contends that it is extremely efficient in white and in blue with constant brightness throughout its lifetime of 15,000 hours. The LED can reportedly withstand high temperatures and high currents. At this time, half of the Microsideled 3806's will still provide 70 percent of their initial brightness (L70/ B50).
The white version, which is composed of a blue LED and phosphor, has an efficiency of 150 lumen/watt (lm/W). Matthias Winter, Marketing Director Consumer at Osram Opto Semiconductors mentions another benefit: “For white in particular we offer very fine binning so there is always a uniform color over the entire backlit surface.”
The efficiency of the blue MicroSideled is an impressive 55 percent, measured as the external quantum efficiency (EQE), in other words the ratio of the electrical power used to the emitted optical power. According to Osram Opto, this LED is designed for special display technology that uses quantum dots (special nano particles) as conversion material. The company asserts that system efficiency with this conversion technology is 10 to 15 percent greater than with classic white LED solutions. Coverage of the color space is also 33 percent better than with classic white LED systems.
Both versions are compact, measuring only 3.8 x 1.0 x 0.6 mm (length x width x height), and are said to have good thermal conductivity with a thermal resistance of 66 K/W. The LEDs have a beam angle of 120 degrees. and they come in color temperatures of 2700K to 10000K. The devices have an operating current of 20mA and a forward voltage that is under 3.0 V.
Lumex Introduces New Lumex TitanBrite Wireless Bonded LED LIGHTimes News Staff
June 13, 2013...Lumex of Carol Stream, Illinois has launched its TitanBrite Wireless Bonded LED. Lumex claims that the new LEDs feature “flip chips” that are up to 15% brighter than any others in the market. Luxex says that in addition to the standard 3W and 6W LEDs, its TitanBrite Wireless Bonded LED is also available in 9W versions.
Lumex notes that wireless bonded LED technology, often referred to as “flip chip”, offers several key performance benefits over traditional SMT (Surface Mount Technology) LEDs including enhanced durability, enhanced heat dissipation and superior light performance. Lumex claims that its TitanBrite Wireless Bonded LEDs are the only flip chip LEDs on the market available in both standard and custom colors and shapes. Standard shapes are circular and rectangular. Lumex says it can also design custom shapes such as octagons and triangles in order to fit any application. Standard colors include warm white and cool white and blue is available for custom products.
The RoHS compliant TitanBrite Wireless Bonded LEDs are available in 3W wireless bond light bar modules (cool white and warm white) and 6W wireless bond round modules (cool white and warm white) in addition to custom colors (including blue) and sizes for 3W, 6W and 9W.
Lumex says that because of the absence of a wire bond and a hard epoxy layer, the wireless bonded LEDs are five times stronger and more robustly designed than standard, high power LEDs. Furthermore, Lumex contends the its Wireless Bonded LEDs offer superior heat dissipation and are more adverse to shock and vibration than traditional high power LEDs. Also, Lumex claims that they can withstand higher temperatures without compromising performance and have a greater surface area for heat dissipation, making them more efficient at removing heat. Lumex asserts that due to the placement of junction pads on the bottom of the flip chip, heat can be transported faster than with a regular high power LED, keeping this technology 25% cooler than traditional high power wire bond technologies.
Lumex contends that higher light output is achieved in a more compact space and the light performance is not disrupted by shadows or other obstacles to consistent performance.According to Lumex, the wireless bonded technology enables the chip to directly emit light from the top and the side with no wire bond casting shadows or creating uneven light distribution, providing 15% more light output.
Philips Lumileds Signs Distribution Agreement with KORE of India LIGHTimes News Staff
June 12, 2013...Philips has signed a distribution agreement with Key Operation
Electrocomponents (KORE) based in Dehli, India. KORE is part of the Ramakrishna
Electro Components Group, a leading distributor of LED Components in India. The
agreement will give Philips to immediate access to the growing Indian LED
market. Under the agreement, Philips Lumileds, a part of the Dutch company
Philips Electronics, a maker of LED products and solutions, will gain access to
India's market through KORE’s network. Philips Lumileds said in a
statement that all of its LEDs and LED solutions are now available in India
through KORE.
“LED lighting is just beginning to take off in India. But we
expect remarkable growth in this market over the next several years, in both
commercial and off-grid applications,” said Pierre-Yves Lesaicherre,
CEO Philips Lumileds. “KORE personnel will have full access to the
products, services and people at Philips Lumileds, individuals who are
committed to improving the customer experience with lighting.”
“Philips Lumileds has been in the forefront of developing
best-in-class LED lighting solutions including indoor, outdoor, and industrial
market segments and KORE is known for its experienced sales team, outstanding
engineering support and large customer base in India providing innate synergies
for both of us to partner,” said Praveen Mahajan, Director of KORE.
Luminus Devices Agrees to Merge with Sanan Affiliate, Lightera Corporation LIGHTimes News Staff
June 12, 2013...Luminus Devices, Inc., based in Billerica, Massachusetts USA, announced that
the company has signed a merger agreement with Lightera Corporation, a
U.S.-based developer of LED components. Lightera is a wholly owned U.S.
affiliate of Sanan Optoelectronics, Ltd., located in Xiamen, China. Under the
agreement, Luminus will operate as an independent business unit and subsidiary
of Lightera. Luminus Devices will reportedly have added and expanded
capability, financial backing and access to Sanan Optoelectronics , and a
global R&D team. Luminus says it will continue to focus on specialty
markets and applications for its current and expanding product as well as
customer portfolios.
Luminus reportedly gains access to an advanced R&D operation in
California as well as the overall technical strength of Sanan’s Corporate
R&D Technical Center. According to Luminus, the merger also gives it access
to global specialty markets including projection display, medical, transportation, and
ultra-violet, as well as general lighting markets and applications.
“Luminus has been searching for the right partner that would add
to our extensive intellectual property, allow for expansion of our global
operations and would be additive to our market-leading position in many
segments of the worldwide specialty lighting market,” said Keith
T.S. Ward, President and CEO of Luminus Devices. “This relationship
with Lightera and Sanan will allow us to expand our capabilities through new
access to technical and financial resources well beyond our current
position.”
“As a leader in the specialty lighting market, Luminus Devices
provides us with proven, state-of-the-art technology that will allow Lightera
to expand both our U.S. and international offerings,” said Dr. Decai
Sun, Chairman and CEO of Lightera. “We expect Luminus to continue to
focus on new technology, specialty lighting markets, applications and superior
customer service.”
Lattice Power to Offer Volume Production of High Powered Silicon Substrate-based LEDs
June 12, 2013...Guangzhou, China-Lattice Power Corporation, the world premier company offering GaN-on-Silicon LED chips, today announced the start of volume production of its new generation GaN-based high powered LEDs on silicon substrate. This development sets the backdrop for a sharp reduction in the prices of energy-efficient LED light bulbs worldwide. Lattice Power is the first and only company in volume production of GaN-on-Silicon LED chip, with products that are comparable to high-end chips that rely on conventional sapphire substrates. At operation current of 350mA, the 45-mil product is capable of producing 130 lumen cool white with an efficiency of 120 lumens for each watt consumed. Moreover, silicon substrates are readily available in larger diameters and at a fraction of the cost of sapphire substrates resulting in substantial cost reductions for downstream manufacturers.
CUSTOMERS RECEIVE LATTICE POWER LEDs IMMEDIATELY
Twenty strategic customers have received the LEDs and will incorporate them into indoor and outdoor lighting applications. Lattice Power silicon substrate-based LED series encompasses four different chip sizes: 28mil x 28mil, 35mil x 35mil, 45mil x 45mil, and 55mil x 55mil. Chip power ranges from 0.5 watts to 2 watts. Lattice Power has always invested heavily in research and development in silicon substrate-based LED technology. The commercialization of its silicon substrate-based-power chip series represents a second milestone for Lattice Power after the launch and volume production of its smaller size silicon substrate-based LED chips used in display and signage recently.
THE LATTICE POWERED EVELOPMENT PROCESS AND TEAM
Using GaN-on-Silicon technology to make commercial grade LEDs in the United States and Europe has shown promising laboratory resultsut not at volume production levels like Lattice Power has in the past year. Lattice Power, realizing its potential early on, started to work on this technology before it became part of the mainstream industry perspective. Lattice Power has filed more than 200 innovative international and domestic patents in this field. Lttice Power not only has the state-of-the-art silicon substrate-based LED technology, but also a world class technical and management team,said Sonny Wu, the managing director of GSR Ventures and chairman of Lattice Power. wth the big growth of solid state lighting and Lattice Power introduction of high power LED product family into the lighting market, the company has once again proven its cutting-edge development and manufacturing capabilities. I highly confident that Lattice Power will grow into a world class solid state lighting company. snce its birth, Lattice Power has focused on high efficiency, low cost and high reliability LEDs on silicon. To get to where it is now, Lattice Power has faced lots of hurdles and challenges and overcome many obstacles and heart-breaks,said Dr. Wang Min, the co-founder and CEO of Lattice Power. ut we have persevered and gained enormous traction with customers. Our silicon-based LED technology will finally open the door for LED bulbs to be used in millions of households.
FUTURE OF LED CHIPS AND COST SAVINGS
Leading industry experts now predict that future LED chip cost savings could be as much as 70% greater than with the current mainstream products when manufactured on larger diameter silicon substrates. Lattice Power is actively working on 150-mm GaN-on-silicon technology and is expecting to transfer its production to the larger diameter silicon substrates in 2013.
LED Engin Claims Highest Color Rendering in World's Smallest LED Emitters LIGHTimes News Staff
June 6, 2013...LED Engin, Inc., of San Jose California USA, announced what they claim to be
the world's most compact 'Gallery White' emitter for directional lighting. The
new LEDs boast an exceptionally high color rendering index (CRI) of 97. Gallery
White LEDs are designed for use in high-end applications, including retail
outlets, galleries and museums where accurate color representation is vital.
The warm white light (3000K) light achieves impressive individual R values
(R1-R15) to enhance the contrast of retail merchandise, artwork and skin tones.
The company says that its color temperature and CRI remain stable over time,
temperature and drive current...
Gallery White emitters have an option for customers to specify a 3 SDCM
(Standard Deviation of Color Matching) bin. While the CRI measures the light
source against 8 pastel pigment colors (R1-R8), it does not take into account
saturated solids (R9-R12) or skin tones (R13 and R15). Not only does Gallery
White achieve a CRI of 97, the emitter also delivers outstanding R1 to R15
values between 96 and 99 and R12 typically of 86.
LED Engin offers Gallery White emitters in a range of package sizes for
different power ratings from 10W to 80W, delivering between 450 and 3200 lumens
output. The emitters are based on the company's LuxiGen™ platform that
they claim is up to 8 times smaller than array-based solutions with the same
flux performance. According to LED Engin, its LuxiGen™ thermal packaging
design allows LED die to be driven to higher current levels, while keeping
junction temperatures low, ensuring long operating life (>50,000 hours) and
superior color point stability.
The tiny emitters can reportedly work with total internal reflection (TIR)
lenses to produce smooth, glare-free beam profiles from compact fixtures while
delivering what the company claims to be 30% more Lux-on-Target™ than
other high-CRI competing products. LED Engin also offers a suite of
complementary TIR lenses to enable fixtures with beam widths from 9 degrees to
50 degrees.
President and CEO of LED Engin, David Tahmassebi, commented, "In
applications where quality and consistency of light are paramount
considerations, Gallery White raises the bar in delivering robust and reliable
high-CRI LED lighting in a small form factor. No other comparable high CRI
emitter comes close to achieving the same combination of light intensity and
color rendition from a single compact package."
The Gallery White LED emitter is available now and will be demonstrated for
the first time at Guangzhou International Lighting Exhibition, June 9-12, 2013
at LED Engin's booth: Hall 9.2, A42.
SemiLEDs Adds to Vertical UV-LED Portfolio LIGHTimes News Staff
June 6, 2013...SemiLEDs Corporation of Chunan, Taiwan, a maker of vertical UV-LEDs, has
released two new product families, the 10-watt high-power N9 series, and the
0.17 to 0.50-watt mid-power P50N series. Both product families take advantage
of SemiLEDs patented vertical LED structure that the company says provides
superior performance in directional industrial applications, such as printing,
coating and curing, and specialty applications including signage and medical or
cosmetic uses.
The N9 series, which is housed on a 9 x 9mm ceramic package, is offered in
wavelengths from 385 to 420nm in 5nm bins. With drive currents up to 1,000mA,
the N9 series produces typical output of 5,000mW of optical power at the
nominal 350mA drive rate at 30V. SemiLEDs says that the lambertian output
distribution is highly compatible with secondary optics.
The company boasts that unlike the standard 1000-4000 hour life of the
incumbent UV lamp technologies, vertical UV-LED systems support lifetimes of up
to 50,000 hours under optimal thermal management conditions. The UV-LED is a
compact point-source that is compatible with a wide variety of optics, and
therefore does not require mechanical shutters or focusing windows, according
to the company.
SemiLEDs notes that high-output UV sources are commonly used in
semiconductor and electronic photo-resistive etching or processing, as well as
high-throughput printing systems, and larger scale industrial bonding or curing
applications.
The mid-power P50N UV-LED series consists of a complete product family
available for 0.17, 0.34 and 0.50-watt drive options. It delivers up to 140mW
of output, for wavelengths from 385 to 420nm in 5nm bins. The 5 x 5mm package
is suited for integration into compact arrays or for backlight elements in
UV-driven signage.
Ilkan Cokgor, SemiLEDs executive VP of sales and marketing commented,
“With the addition of the high-power N9, and mid-power P50N series,
SemiLEDs has really opened up that area of the industrial market where both
very high-output single UV-LED sources, and cost-effective UV-LED arrays, have
not previously been available.”
Everlight Adds Two IRLEDs for Remote Controls and Optical Touch Panels LIGHTimes News Staff
June 5, 2013...Everlight Electronics Co., Ltd. has added two new SMD
infrared LEDs (IRLEDs) for remote control applications, the IR26-71C and the IR26-61C. The two IR26-71C models are 940nm side-view SMD IRLEDs that are ideal for use in remote controls and touch
panels. Everlight notes that their height of only 1.2mm allows the target devices to be as slim as possible, even when implemented into portable devices like mobile phones and tablets.
The IR26-71C models have a radiant intensity of 5mW/sr and 8mW/sr or more at 20mA. According to Everlight, the 8.0mW/sr@20mA version catches up with or exceeds 5mm IR diodes, and allows either lower driving currents, to extend the battery lifetime of handheld devices, or increased panel sizes respectively increased transmission distance of remote controls. The IR26-71C models have a viewing angle of 50° to provides a wide operating range.
Based on a similar package design, Everlight offers the IR26-61C IRLED series with a narrower viewing angle of 20° and the PT26-71B phototransistor series. The IR26-61C IRLED and the PT26-71B phototransistor are matching pairs designated for small-middle (5-32”) size optical touch panel applications. Everlight notes that because of the same low height of only 1.2mm, the slit for the touch panel’s optical frame can be kept very small,
thus allowing for a slimmer device.
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