Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. LED bulbs, by all indication, herald the future of home lighting ...
It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...
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