Why It Was Almost Impossible to Make the Blue LED

Whirling_Cloudburst@lemmy.world · 2 years ago

bort@feddit.de · 2 years ago

full-spectrum lighting

this doesn’t sound true.

iirc full spectrum means “every wavelength” (like sunlight) and not just “3 wavelengths that add up to white”.

LaggyKar@programming.dev · 2 years ago

That’s true (here’s an interesting video on the subject of colored light: https://www.youtube.com/watch?v=uYbdx4I7STg), but as mentioned at https://youtu.be/AF8d72mA41M?si=i8wjHjaKRaQbf23b&t=1516, once you have a blue LED, you can use a phosphor to convert the light to a range of longer wavelengths.

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