Lunal_Tic
Flashlight Enthusiast
I thought this was interesting particularly since they don't mention plain white LEDs (blue w/yellow phosphor) but rather mixing RGB to get white.
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They haven't been used as sources of illumination because they, for a long time, could not produce white light - only red, green and yellow. Nichia Chemical of Japan changed that in 1993 when it started producing blue LEDs, which combined with red and green produce white light, opening up a whole new field for the technology.
[/ QUOTE ]
[ QUOTE ]
They haven't been used as sources of illumination because they, for a long time, could not produce white light - only red, green and yellow. Nichia Chemical of Japan changed that in 1993 when it started producing blue LEDs, which combined with red and green produce white light, opening up a whole new field for the technology.
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