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Why It Was Almost Impossible to Make the Blue LED (youtu.be)

submitted 7 months ago by Whirling_Cloudburst@lemmy.world to c/technology@lemmy.world

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The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.

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[–] PM_Your_Nudes_Please@lemmy.world 13 points 7 months ago* (last edited 7 months ago) (1 children)

It’s such a big problem that there’s literally LED dimming tape on the market. It’s semi-transparent tape that you stick over the blue LEDs, to knock them down to a more reasonable brightness. It’s akin to putting sunglasses on your appliances.

[–] arin@lemmy.world 7 points 7 months ago

I just layer on masking tape until it's dim enough, usually 2 layers