Texas Instrument Product Engineer David Zhang shares insights on LED color tuning technology in a recent blog post. As Tim Sullivan indicated in an earlier blog as well, LED lighting is a relatively new technology. Engineers that used to change bulb color through the glass fixture are now finding themselves figuring out how to change or tune lighting color in high-end LED fixtures. One of the easiest ways to do this is through multiple strings of different color LEDs with dimming. I wrote a paper, “Dimming multiple LED strings enables color-tunable luminaires”, on this topic that was published recently in LEDs Magazine. As well, I included a link below to a video demonstration on this topic.

The American Tobacco Campus, a national model for historic redevelopment, is pushing boundaries and setting new standards for energy efficiency as part of a new collaboration with Duke Energy and LED innovator, Cree, Inc.

Osram have extended their range of aftermarket fit DRLs meaning drivers can now add a DRL function to their vehicle, transforming their car into an eye-catcher and ultimately increasing road safety.

Vishay Intertechnology, Inc. today expanded its offering of TMBS® Trench MOS Barrier Schottky rectifiers with 16 new 45 V, 50 V, 60 V, 100 V, and 120 V devices that feature a wide range of current ratings from 10 A to 60 A and extremely low forward voltage drop for commercial applications. The devices are offered in the low-profile SMPD package, which is footprint compatible with the D2PAK (TO-263) while offering a lower typical height of 1.7 mm.

With welcoming the era of lighting, LED industries are slowly switching from horizontal labor division to vertical integration development. Switching to vertical integration is Samsung’s main development strategy. Samsung LED China General Manager and Sr. Vice President Dr. Guoqing Tang pointed out that with continuing the vertical integration plan subsidiary products are concentrated in the mid-to-high power market. The company has also chosen a distributor mode to cut into the highly dispersible lighting market.

In the first quarter of the current financial year (May-July 2013) the Zumtobel Group posted a further improvement in operating earnings despite a moderate downturn in revenues. In what was still a difficult economic environment, the group’s revenue fell by 4.4% year-on-year to EUR 309.3 million (US$ 411.59 million) in 1Q13. Revenues from the sale of innovative LED products continued their progress, totaling EUR 89.3 million in the first three months. This equates to an increase of 49.7% and the LED share of Group revenues now stands at 28.9% (prior year: 18.4%). This confirms the Zumtobel Group’s strategic decision to invest in the expansion of an innovative product portfolio, despite the difficult business environment.

The Melbourne City Council in Australia has proposed a scheme to upgrade its public lighting over a period of 10 years, according to the article 'Melbourne plans public lighting upgrade' by lighting.co.uk (20th Aug). Illumination of landmarks and landscapes is hoped to enhance the city’s skyline and promote Melbourne as a 24-hour city. The council also aims to improve safety, “so that places that are attractive by day will remain safe, comfortable and engaging after dark,” states the plan.

The LED specialists behind Visiblelighting.co.uk have responded to news that a new UV LED could pave the way for portable, lower cost devices.

Every part of the world needs light in order to survive and for existence. In Malaysia, the lighting industry is among the most dynamic and fast-moving with new technologies introduced, better energy efficient products launched as well as more options becoming available for dealers, corporations and consumers.

LED lighting experts, LED Striplights, have responded to news of a bill filed in the Philippines which would make LED lighting mandatory.

As LED continues to evolve many specifiers continue to choose their LED accent fixtures by looking for lumens per watt or total number of delivered lumens the fixtures produce. The question the specifier should ask before selecting a fixture is to ask themselves, "How much of the total lumen produced, hit the intended target?"

Sleek, innovative product design transforms the personal breathalyzer into a classy fashion statement.

Fitting the right car driving lights can be the key to improved safety when driving off-road or in rural locations at night. All Tuff Lighting knows precisely which HID lights are best suited for any off-road or rural driving purposes anywhere in Australia.

Rigid Industries LED Lighting releases four new products. These new products include the Trolling Motor Mount Light Kit which helps boaters keep their hands on the wheel for safety first to the versatile Suction Cup Mount Kit which allows change of application anytime you need light in a different area.

Lumitec, a designer and manufacturer of marine LED lighting solutions, is set to premier three new products at IBEX September 17-19 at booth 2155. Lumitec will also reveal technology updates for some of their most popular lights.

Japanese LED manufacturer Nichia has shown no signs of making peace with Taiwan LED manfuacturer Everlight over the latest patent dispute. In a rare move, Nichia held a press conference in Taiwan to clarify the situation and criticized Everlight’s former response towards the case. Nichia’s General Manager of Legal Affairs and Intellectual Properties, Katsuyuki Akutagawa, who arrived in Taipei on Sept. 13 pointed out, Everlight had been spreading biased information regarding the patent dispute over the past year, which has misdirected Nichia clients and high ranking client officials to believe the company’s patents were worthless. Akutagawa appearance in Taipei shows Nichia has abandoned its more conservative approach from the past to a more aggressive stance. 

The ‘David Bowie is’ exhibition was one of the most successful and technically complex shows at the Victoria and Albert Museum (V&A) in London. Opening to rave reviews on 23 March 2013 it was the best selling exhibition in the museum’s history. ‘David Bowie is’ is now on world tour starting at the Art Gallery of Ontario, Canada in September 2013.

The ongoing patent lawsuit between Taiwanese LED packaging manufacturer Everlight and Japanese LED manufacturer Nichia heats up. The two companies have filed lawsuits in Japan, Taiwan, Germany, the U.S. and China. General Manager of Legal Affairs and Intellectual Properties at Nichia, Katsuyuki Akutagawa attended a press conference in Taiwan on September 13th. He stated that Nichia will no longer be passive during this dispute but fight back against Everlight’s patent infringement.

The maturing of the LED lighting application market has not only seen LED manufacturers aggressively increasing LED luminosity, but also gradually placing more and more attention on the importance in color rendering performance for LED products. Mitsubishi has stated that in the past most sapphire wafers included yellow phosphor in order to create white light, but that the color rendering performance was lack luster. With the evolution of phosphor technology, sapphire wafers to create white light can now also contain green and red phosphor and the same effect happens when UV wafers are paired with red, blue, and green phosphor. This has a clear improvement on color rendering.

The United States District Court for the Eastern District of Michigan ruled in favor of Everlight today (September 13th) over patent infringement lawsuits filed against Nichia Corp regarding U.S. patent no. 6,653,215 LED metallization technology. Everlight also demands the courts declare Nichia patent nos. 5,998,925 and 7,531,960 void.

Hammerhead Navigation, a U.S. company has started a fundraising campaign on Dragon Innovation for its LED bike navigation system that can be programmed with a smartphone. The navigation system, Hammerhead, makes cycling safer as it saves cyclists the trouble of checking their smartphones for locations and routes while on the road. The bright RGB LEDs signal different information according to its array on the device. 

Solomon Systech Limited today announced that it has successfully developed China’s 1st qHD AMOLED display driver IC with Visionox. Solomon Systech is a leading international semiconductor company providing display IC products and system solutions.  It is also the global market leader of PMOLED.  Visionox is a leading display panel manufacturer focusing on the development of OLED technology and products.

NEC Display Solutions of America, a provider of commercial LCD display and projector solutions, announced today its new 21.5-inch AccuSync™ AS222WM desktop monitor targeted to small-to-medium-sized business users.

Daktronics announced today that Illinois State University has asked the company to design, manufacture and install an LED video display for Hancock Stadium. The installation will improve the fan experience through the visual elements shown on a new display with a 15HD pixel layout that measures more than 26 feet high by 47 feet wide.

Human centric lighting is intended to promote a person’s well-being, mood and health. It can improve concentration, safety and efficiency in workplaces or educational environments. It can support healing processes and prevention of chronic diseases among persons with irregular daily routines or in elder care. For the first time, a joint study by LightingEurope, the German Electrical and Electronic Manufacturers’ Association (ZVEI), and the global management consulting firm A.T. Kearney shows that human centric lighting can become a multi-billion-euro business, covering around 7% of the general lighting market in Europe. 

NMB adds to the LED programmable driver family by introducing the new 10~20W Performance Line LED drivers. The Performance Line delivers a single programmable driver that offers output current ranges of 350mA to 2A, 0~10V low voltage dimming and digital PWM dimming function, 130K hours lifetime at 40°C, as well as RoHS and WEEE Certification.

Ideal for the hospitality industry, OSRAM SYLVANIA is offering a full portfolio of SYLVANIA ULTRA 25™ LED lamps that offer energy and cost savings and the inviting 2500K color temperature that creates a warm, relaxing atmosphere for customers.

The St. Botolph Building, over 500,000 sq ft space with 14 stories high, is one of the largest office development in the City of London. Speirs + Major was appointed by Minerva plc to design the lighting scheme for the internal public area: the reception, central lift core, outer stair cores and atrium.

The TALEXXconverter TOP series rounds off Tridonic's new converter portfolio. In all the models in this series the current range can be adjusted in small steps between 350 milliamps (mA) and 1750 mA, depending on the wattage, to provide the perfect conditions for the particular application. Comfort and protection functions such as precise setting of the output current, temperature management and integrated temperature monitoring ensure reliable luminaire operation throughout its life.

Taiwan LED wafer manufacturer Epistar announced more good news for its market layout in LED lighting. According to a report by global financial service firm Morgan and Stanley, Epistar’s infiltration into CREE’s supply chain, controlling production of high efficiency red LED chips and mid-to-low watt sapphire wafer orders, lighting proportion within the company will continue to rise for 4Q.