einfach_orangensaft@feddit.de to NonCredibleDefense@sh.itjust.worksEnglish · 2 年前The Math would add upfeddit.deimagemessage-square163fedilinkarrow-up1479
arrow-up1479imageThe Math would add upfeddit.deeinfach_orangensaft@feddit.de to NonCredibleDefense@sh.itjust.worksEnglish · 2 年前message-square163fedilink
minus-squareRedjard@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up3·2 年前The easy to show part was the second sentence of my comment. This is really useful physics trivia, because the basic truth is easy to show from a simple law, but the detailed explanations go quite in-depth. With lenses, you trade bewteen angular accuracy and light density. For a challenge, try it with LEDs. Where do you find the source “temperature”, you can get from focusing an LEDs light?
minus-squarenicoweio@lemmy.worldlinkfedilinkEnglisharrow-up2·2 年前That’s an intriguing question. My first guess would be it corresponds to the diode’s band gap?
minus-squareRedjard@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up1·2 年前Thats definitely hugely relevant, yes.
The easy to show part was the second sentence of my comment.
This is really useful physics trivia, because the basic truth is easy to show from a simple law, but the detailed explanations go quite in-depth.
With lenses, you trade bewteen angular accuracy and light density.
For a challenge, try it with LEDs. Where do you find the source “temperature”, you can get from focusing an LEDs light?
That’s an intriguing question. My first guess would be it corresponds to the diode’s band gap?
Thats definitely hugely relevant, yes.