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

submitted 10 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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[–] aStonedSanta@lemm.ee 2 points 10 months ago* (last edited 10 months ago) (1 children)

Yeah. I just think being RgB it would be good at purple 😂 One of those situations where the name was probably not created based on logic lol

[–] Alto@kbin.social 2 points 10 months ago (1 children)

It's called RGB because there's a red, green, and blue diode. Not sure how that's not a logical name.

[–] aStonedSanta@lemm.ee 1 points 10 months ago (1 children)

Oh I was making a joke cause it sucks at purple. Which is red and blue combined generally. But that’s not really how the RGB color cycle works as far as I understand in some extremely cursory Wikipedia reading lol

[–] Alto@kbin.social 2 points 10 months ago* (last edited 10 months ago) (1 children)

IIRC, it has something to do with the fact that purple sort of doesn't actually exist. As I understand, purple is basically your brain going "idk wtf it is but it's not green"

[–] aStonedSanta@lemm.ee 1 points 10 months ago (1 children)

lol my favorite color would be a weird one. 😂

[–] Alto@kbin.social 2 points 10 months ago

Right there with you.

More specifically, it's because purple fires your red and blue cones, but not the green one. Normally, as green is between red and blue, anything that would trigger those two also would trigger green. So when it doesn't, that's when your brain goes "well I guess it's not green???"