Climate Compass on MSNOpinion
LED blue light risk: The health warning lighting brands don't have to share
When you flip a switch or power up your smartphone, the last thing on your mind is whether that light could be messing with ...
Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...
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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