Tunable LEDs
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Conundrum
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Fri Nov 16 2012, 07:02PM
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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
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I always wondered why no-one has exploited the colour change effect with B/G EL sheet to make a wide area light, presumably it simply isn't efficient enough even if 20 transparent layers are used. LEDs are already efficient, lasers even more so. In fact one theorised application for the new 2W 445nm emitters is to combine them with red lasers and conventional green SLEDs for LCD backlighting.
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