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2015-01-22
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Editorial: The Significance of the LED Lighting Industry
 
... A big motivation (or frustration) factor in most people's lives is significance. When we feel we we're making an impact, not only do we feel better about ourselves, we feel better about pretty much everyone. We we don't think we're making a difference, things will typically start to fall...
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Commentary...
The Significance of the LED Lighting Industry

 
... A big motivation (or frustration) factor in most people's lives is significance. When we feel we we're making an impact, not only do we feel better about ourselves, we feel better about pretty much everyone. We we don't think we're making a difference, things will typically start to fall...

View the full story at the bottom of the current news page, or if this is a back issue, go here...

Cree Debuts XLamp MH Family of Ceramic COB LEDs
LIGHTimes News Staff

January 22, 2015...Cree has introduced the new XLamp mid-power high lumen density (MH) family of chip-on-board (COB) LEDs. The Durham, North Carolina company announced the first members of the family, the MHD-E and MHD-G. Both offer high lumen density and the reliability of a ceramic chip-on-board LED and a surface-mount package. The LEDs employ elements of the Cree SC5 Technology™ Platform. Cree says that the MH family enables superior performance with new designs and significantly lower system costs.

“The high lumen output and high reliability of Cree’s new MHD-G LED allows us to develop a new downlight that outperforms other downlights in the market,” said Baly Luo, general manager, Aeon Lighting Technology. “ALT’s compact-size, 4-inch downlight that is built with the MHD-G LED generates over 1,800 lumens at 3000 K while other downlights can only produce 800 to 1000 lumens.”

The LEDs offer the Cree EasyWhite® technology in a 7-mm x 7-mm package, XLamp MH LEDs allow a smaller board size, tighter beam angle and a more traditional appearance than conventional mid-power LEDs. Delivering more than 1800 lumens at 14 W and 2500 lumens at 19 W respectively, the XLamp MHD-E and MHD-G LEDs are perfect for high-lumen, semi-directional applications such as high-bays, downlights, and outdoor area applications.

“At Cree, we continue to deliver innovative products that give our customers a competitive edge in the marketplace,” said Paul Thieken, Cree director of marketing, LED Components. “With the MHD LEDs, we’re offering chip-on-board performance to lighting manufacturers that prefer surface-mount technology, making it easier for them to achieve lower system cost than with the same commoditized mid-power LEDs that everyone is using.”

Cree XLamp MHD-E and MHD-G LEDs come in 2700 K – 6500 K correlated color temperatures with high-CRI and multiple voltage options. Samples are available, and production quantities are available with standard lead times.

Nichia and Mitsubishi Chemical Reach Patent Cross-Licensing Agreement Related to Red Phosphor for White LEDs
LIGHTimes News Staff

January 22, 2015...Nichia Corporation, Citizen Electronics Co., Ltd., Mitsubishi Chemical Corporation, and National Institute for Materials Science, reported that Nichia and MCC have concluded a cross-licensing agreement for patents related to nitride-type red phosphor, which is frequently used in white LEDs.

The conventional white LED using a yellow phosphor has been available for many years, but Nichia points out that its white light had less of a reddish component than natural light. The nitride-type red phosphor, called CASN or SCASN phosphor (or 1113 phosphor) can add this reddish component to white LEDs for a white light that is closer to natural light. The white LEDs containing this red phosphor are also used in a variety of lighting applications and in backlighting for LCD panels.

The new agreement finalizes the basic cross-licensing agreement that Nichia and MCC reached pertaining to each company’s red phosphor patents in 2010. The cross-licensing agreement targets Nichia’s patents and MCC and NIMS’s patents. In addition, the companies also reported that Nichia, MCC, Citizen, and NIMS have agreed to share the U.S. patent (No. 8409470), which is one of the basic patents that MCC and NIMS currently co-own.

The companies expect the completion of the cross-licensing agreement and shared U.S. patent to further stabilize their patent rights related to the red phosphor, and enhance the business base of Nichia and MCC. Nichia, MCC, Citizen, and NIMS reportedly plan to continue their initiatives to expand the white LED market using the red phosphor.

Azerbaijan to Mass Produce LEDs with Help of LG
LIGHTimes News Staff

January 22, 2015...The country of Azerbaijan plans to develop LED chip production domestically with the help of LG, according to an article in Azernews. Azerbaijan’s State Fund for Development of Information Technologies reported that it plans to finance the development of LED production in 2015. Over $7 million will go towards working on the technology of developing LED chips based on thin layers.

The LED technologies are expected to be used for street lighting in the capital, as well as other street, decorative, general, and architectural lighting applications. The Azerbaijani Research Center for High Technologies will collaborate South Korea’s LG Company on the commercial venture. After meeting the country’s LED lighting needs, the technologies will be exported internationally. The HiTech Park is to be the location of LED chip mass production.

Sumitomo Licenses OLED Patents from Universal Display
LIGHTimes News Staff

January 22, 2015...Universal Display Corporation of Ewing, New Jersey USA, and Sumitomo Chemical Company, Ltd. of Japan have signed a new OLED Technology License Agreement. Under the agreement, Universal Display has granted Sumitomo Chemical non-exclusive license rights, for various patents that Universal Display owns or controls. The license agreement gives Sumitomo, the right to manufacture and sell solution-processed organic light emitting diode (OLED) lighting products using the technology related to certain OLED patents that Universal Display owns or controls.

"Our proprietary UniversalPHOLED® technology offers up to four times the efficiency of conventional OLED technology, a critical component for high-performing, energy-efficient solid-state lighting (SSL)," said Steven V. Abramson, president and CEO of Universal Display. "We are pleased to enter into this license agreement with Sumitomo Chemical, one of the early OLED developers, as the company broadens into the growing SSL market."

"Leveraging the licensed technology, we will increase the luminous efficacy of our polymer OLED lighting panels," said Toshihisa Deguchi, director & senior managing executive officer of Sumitomo Chemical who also serves as the head of polymer OLED business planning. "We will explore business opportunities in lighting applications that take our printed polymer OLED technology to the next generation lighting."

Flip Chip Opto Debuts High Power 3-Pad LED Flip Chips
LIGHTimes News Staff

January 20, 2015...Flip Chip Opto launched its new P Series of LED Flip Chip Chip-on-Board (COB) products. The lighting modules employ the company's patented 45x45 mils 3-Pad LED flip chips with a Pillar Metal Core Printed Circuit Board (P-MCPCB) to significantly reduce light emitting surface area, junction temperatures, and thermal decay. The company claims that its technology drives the modules at higher currents, reduces heat sinks, and reduces chip counts and optics for improved “Lumen-per-Dollar” performance.

The P-Series COBs reportedly offer high flux density in small LES ranging 9~30mm. They support 24 to 244 watt input power and can come with customized CCT/CRI. The high "lumen-per-dollar" and low thermal resistance (0.02°C/W to 0.11°C/W) make them perfect for spotlights, high bay lights, down lights, automotive lighting, and street lights. The P-Series fit the mechanical holders, optics, drivers and thermal components of existing packages.

In OEM quantities, the P25-12S3P (19mm LES / 122 Watt COB) costs less than $10.00 (US). Evaluation quantities are currently available with standard lead times of 4 weeks. The company will showcase the chips along with other products at Light Fair International 2015 on February 24-26.

Jufei Opto Signs Patent License Agreement with Toyoda Gosei
LIGHTimes News Staff

January 20, 2015...Jufei Optoelectronics has signed a patent licensing agreement with the Shanghai, China branch of Japanese company Toyoda Gosei. Jufei Opto agreed to license Toyoda Gosei’s patents related to white LEDs. Terms of the agreement were not disclosed.

Toyoda Gosei is one of the members of the BOSE consortium which holds key white LED patents. The agreement makes Jufei Optoelectronics a BOSE Consortium certified white LED manufacturer. The goal of the agreement is to support the company's international expansion, to meet customer demand for patents and improve product competitiveness.

pureLiFi Raises £1.5 million in Latest Funding Round
LIGHTimes News Staff

January 20, 2015...pureLiFi of Edinburg, UK, has raised £1.5 million in its latest round of investment. The 2012 University of Edinburgh spin-out is currently valued at over £14 million. The company says that a VC funding round is on-going, and additional funding announcements are expected during the second half of 2015.

The funding news comes as pureLiFi ships its first full wireless Li-Fi networking system. Li-Fi – a term created by the company's chief science officer (CSO), Professor Haas, refers to a visible light communication technology that provides full networking capabilities similar to Wi-Fi, but can have significantly greater spatial reuse of bandwidth.

London & Scottish Investment Partners (LSIP), a Scottish-based angel group led the latest funding round. Corporate finance firm, Quest Corporate managed the additional funding, which came from the Scottish Investment Bank (SIB) and Old College Capital. pureLifi plans to use the investment to support the development and roll-out of the product roadmap in addition to its marketing and sales.

In Q4 of 2014, the pureLiFi team launched and shipped the Li-Flame, the first Li-Fi network product, to customers globally. The system enables off-the-shelf light fixtures to become Li-Fi access points, which can simultaneously bi-directionally communicate to numerous users. Li-Flame also consists of the first battery-powered Li-Fi mobile unit. The unit attaches to a laptop screen for user roaming within a room or an entire building.

Professor Russel Griggs, pureLiFi’s Chairman, said, “I am very pleased that the necessary funding is now in place to allow Harald and his team to push ahead with the product roadmap, positioning pureLiFi for its next phase of growth.”

Harald Haas, CSO and co-founder of pureLiFi, said, “Li-Fi is increasingly viewed as a transformative technology that can change the way we use the mobile internet as part of future 5G cellular networks and at the same time be an enabler of the emerging Internet of Things.”

OLED TV Production Stopped at LG Factory After Gas Leak Accident

January 15, 2015...A nitrogen gas leak killed two workers and injured four at LG's OLED TV factory according to Reuters. South Korea's Ministry of Employment and Labor forced LG to shutdown the factory while it investigates the accident. The shut down comes just days after LG debuted its Art Slim OLED TVs, which won the Best of CES awards. LG would not speculate about the effects of the shutdown on the launch of some of the company's latest products.

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Commentary & Perspective...

The Significance of the LED Lighting Industry
SSLDesign/LIGHTimes Editorial Team

January 4, 2015...A big motivation (or frustration) factor in most people's lives is significance. When we feel we we're making an impact, not only do we feel better about ourselves, we feel better about pretty much everyone. We we don't think we're making a difference, things will typically start to fall off the rails. Apathy being the mild symptom, and tragedy being the extreme. As we kick of 2015, we'd like to stake out our position concerning LED technology and LED lighting: The industry has huge significance, and anyone supplying, applying or producing should be proud of their contribution.

We can't say that the rest of the world will point at folks in the industry as rock stars any time soon. While not as behind the scenes as the folks that really pioneered the Internet, for instance, we also won't be seen in the same light as the gang that launched the first astronauts or crossed the ocean nonstop. What people will recognize, in the not too distant future, is that LED lighting has made their world better. Better light, better health, better efficiency, and probably most recognizably, enabling us to better connect with the spaces we occupy.

All this is coming as a parallel of two elements: 1) The capabilities of LEDs to allow us to unlock the "secrets" of light; and 2) The coming real smart lighting revolution.

The secrets of light... Light is one of those elemental things, and we could easily lump it together with food and water as simply something we need. But saying that would be pretty much the same as saying all food is the same, and has the same effect on us. We know that's not true, although arguably, if we compare the total food to the nutritious food consumed by a teenage boy, we might have one datapoint to the contrary. For the rest of us humans though, junk food begets junk health. Guess what...? We're figuring out as well that junk light begets junk health as well. Whether we end up messing up our melatonin/melanopsin cycle by soaking in too much computer, TV or iWhatever time at bed time, or simply working night shifts because light allows us too, we're figuring out that there is an effect. Philips is investing a lot in doing studies in hospitals that combine natural lighting with providing a more desirable collection of visual elements in the patient's view, and correlating that to healing time. Children's wards are being equipped with more controllable lighting to allow kids to "paint" their spaces (hopefully too much cold-bluish isn't on the palette for bedtime...). The Lighting Research Center (LRC) at RPI has been turning out great information for a number of years, and the output is accelerating as their tools continue to grow. A visit to their research program overviews (here) as well as the list of publications (here) can provide a good sense of the scope of what we're starting to learn.

Work is being done by a number of researchers to help us better understand what and how both our visual and non-visual photoreceptors really work, and what other effects they may have on our biological systems. Horticulture and such things as poultry farms are giving us some pretty good hints at what is to come as we experiment, both rigorously and "on the job", and see real results from changes in our approach to lighting. (A good browse can be found at Once Innovations Agricultural Lighting site (the Science section), which has a good mix of data and studies that can set thought processes in motion). Who needs genetically modified crops when we can simply deliver light that gives the plants what they want, and maybe even curtails the pests, all in one?

The real smart lighting revolution... We have smart TVs that are smart because they connect to the Internet. We have smart phones because the connect, and have apps. We have smart snacks because they don't have "unnatural" ingredients. (High fructose corn syrup and natural flavors are natural too... maybe not the best criteria). Take a light, add a microprocessor so do something, and you can call it "smart", but like that snack food, that's just marketing. Real smart lighting will be connective, adaptive and aware. We've mentioned before that integrated controls are going to be as basic a requirement for lighting as a touch screen is to a smartphone. What's going to distinguish real smart lighting is that it's going to not only include connected controls and sensors, but it's going to know what to do with that data. That includes the local decision making directly related to the amount and type of lighting from any given luminaire, as well as knowing what to aggregate and pass along to the higher level systems as part of it's membership in the Internet of Things. If the temperature in the room is supposed to be between 72 and 74 F, does the building management system need to know it's still 73 now? And now? And still now? Or does it simply need to know when the temp strays below 72 or above 74. "All is well" gets a bit cumbersome every few seconds, especially if you're involved with anything that uses batteries or other energy harvesting. Save your breath, remote device...

And that brings us to the result of this real smart lighting. Yes, there will be better, more granular, information about the space below the light (Check into some of what's up, especially with sensors, at the Smart Lighting Engineering Research Center (ERC) for what's going on beyond just how much light, and what's the temp. Cool stuff includes time of flight info that can use light travel times to tell you how many people are in a room, where they are moving, and whether they are sitting or standing). And yes, there will be better control of the light. Pick your color, pick your style, pick your cycle. But what's really most impactful is that the light will know your color, your style and your cycle. The light won't just be connected to the IoT, it will be connected to you. Which means connecting the person and the space. In it's own significant way, the light will acknowledge your significance. Your cause and effect relationship with the space, and by implication, the bigger world.

Trust us, the fruit of our collective efforts, for health, well being and the higher level of "connectedness" that lighting will impart, will be become obvious to all, very soon.

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