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对LED应用感兴趣的朋友在此签个名!
我也算一个
有个朋友问流明效率,目前最好水平
Red LEDs - 42 lumens/watt by Lumileds, 22-26 by Agilent.
Red-Orange LEDs - 53 lumens/watt by Lumileds, 21-22 maybe now 28.5 by Agilent, 15 by Toshiba.
Truly Orange LEDs - 18-22 lumens/watt by Toshiba, 18-21 lumens/watt by Agilent.
Yellow and amber LEDs - 34-35 lumens/watt by Lumileds, 14-16 lumens/watt by Toshiba.
Yellow-Green LEDs - 8 lumens per watt by P. Tec Opto, 3-4 lumens/watt by Toshiba, but there is a way to get 20-40.
Green LEDs - 25-32+ sometimes 42 lumens/watt by Nichia, already 33 and soon more, maybe 60-62 by Cree, 25 by Lumileds, 16-plus probably 20-plus by Toyoda Gosei and Agilent.
Nichia green LEDs get 30-55 lumens/watt at 5 milliamps
Blue-Green LEDs - 25-28 lumens/watt by Nichia, 25 by Lumileds, soon maybe 41-46 by Cree.
Blue LEDs - 8 to optimistically 12 and maybe soon 14-15 lumens/watt by Cree, 7.5-8 to rarely 10 lumens/watt by Nichia, 9-plus by Lumileds, 5.5-plus by Toyoda Gosei, maybe Agilent.
White LEDs - 15-20 lumens/watt by Nichia, 15-25 by Lumileds, 10-plus by Toyoda Gosei and Agilent, soon around 25-30 for ones with new Cree chips.
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