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KIM Chen

News & Events>>Research & Develop

Subject: Automotive LED Lighting-Manufacturers +++

Nichia (Nichia) has at Photonis West Show, announced that it has successfully developed the industry's highest luminous flux of the low-power white LED chips. This was published Nichia white LED, in 20mA current, its luminous efficiency of up to 249 lm / W, currently the highest in the industry. Nichia LED at 20mA low power there is a breakthrough development of Li-2006, dated December when the luminous efficiency of up to 150 lm / W, 2007 Nian 9 month hour up to 169 lm / W, which now stands at 249 lm / W. Ran the industry generally in high-power 350mA current, the luminous efficiency metrics. The scene at the Photonics West show, the LED chip in the input power which increased to 350mA, its luminous efficiency is reduced to 145 lm / W, failed to break Cree at the end of 2008, published by 161 lm / W records. To explain the performance of Nichia as expected because of operational procedures for on-site errors. Nichia further explained that due to the latest research and development of the fluorescent powder technology, its white LED luminous efficiency in the lab, up to 263 lm / W, even at the highest had a breakthrough 300 lm / W. The chip using Nichia patent sapphire substrates and transparent indium tin oxide (transparent Indium Tin Oxide) technology. LED lighting applications in 2009 have begun to cut into the indoor market, partial, with emphasis and other auxiliary lighting. The industry generally think that if they cut into the main light source of indoor lighting market, LED luminous efficiency of volume production target of 150 lm / W. And therefore the major works are all to 150 lm / W goal of positive development. LED luminous efficiency gains of the speed of progress of 20% annual increase, far more than the industry originally expected. 2008 Cree and Osram (Osram) have been published in the laboratory luminous efficiency up to 161 lm / W and 136 lm / W the chip. The Taiwan factory wafer power in 2008, announced that its blue LED (INGaN) chips in the laboratory has exceeded 100 lm / W, 2009 Nian expected to increase to 120 lm / W