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

  • Alto@kbin.social
    2·
    2 年前

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

    • aStonedSanta@lemm.eeEnglish
      1·
      2 年前

      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·
        2 年前

        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”

          • Alto@kbin.social
            2·
            2 年前

            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???”