4 ms·

That second one would make a nice 3d display. Are tunable uv lasers a thing?

• denton-scratch 4y ago
  It's always lodged in my mind, that one. It sounds plausible, but if it were actually possible presumably someone would have patented it. Oh - except, Daedalus is prior art! Could you do that? Could you get two lasers to interfere at a frequency that excites Oxygen, so that if you intersect the beams it emits visible light? I imagine Oxygen emission light would be bluish, right? So you could get a bluish 3d display in principle, with scanned 3d UV lasers. I suppose you could get a richer gamut, but you might have to inject some more interesting elements into the display gas. Also, this 3d display wouldn't be suitable for close-up viewing; I'm not sure I'd want to risk getting too close to a battery of scanned UV lasers.
  • swayvil 4y ago
    You might do it in a tank full of the easiest gas possible. A fishtank full of neon or something.