This is tight. Presently working on a list of uses. Need one the size of a 5gal bucket. As it is, I'd stick one on my gimcrack cabinet.
Tiny volumetric display
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Re: Tiny volumetric display
#12That is cool.
The code is lean too, seems like one could learn a lot by trying to do this themselves.
Re: Tiny volumetric display
#13Nice example of persistence of vision display. You can use large stick versions of this to “paint” images by waving them around.
Re: Tiny volumetric display
#14It seems like this might
Work even better with a two sided OLED screen (2 screens back to back) rather than led array, for better resolution? I think that are sufficiently wide angle, at least the monochrome ones.
Re: Tiny volumetric display
#15The rest of the site is filled with dozens of similar very cool projects
Re: Tiny volumetric display
#16It would be hard to manufacture at scale, but what if the LEDs were mid-mounted into a slot cut into the PCB?
Or suspended in a wire net.
Re: Tiny volumetric display
#17I would pay $200+ for a bigger (50x50?), rugged, RGB version of this that you can make to display different images without coding.
It's not volumetric, but it's still really cool and may fit your use case https://spinprojector.com/
Re: Tiny volumetric display
#18This is tight. Presently working on a list of uses. Need one the size of a 5gal bucket. As it is, I'd stick one on my gimcrack cabinet.
https://youtu.be/CCuybyAO8fs?si=xBLYy5zKEEcloqeA
Wow this one is cool. First time I've seen it. Reciprocating screen? How the hell do they get it to move that quickly? That is very high energy.
Edit found another video showing it starting up https://www.youtube.com/watch?v=SMz4bJA47Js
Now that I think about it, I suppose if you match the resonate frequency of the display component and its carrier it should be fairly efficient. Really cool stuff.
Re: Tiny volumetric display
#19Pretty cool, but the bigger the display, the more that refresh rate becomes an issue.
Say you can refresh the outer pixels on the horizonal axis at 100 fps. Then if you want to have 50 pixels on the outer half circle, then you can change them at 2fps.
Re: Tiny volumetric display
#20One of those brilliant ideas that seems obvious in retrospect. Given that the results are so compelling even when pulled together by hand out of relatively primitive discrete components, I’m wondering why we shouldn’t expect to see full color, high resolution versions from every random 7-letter drop shipper on Amazon next Christmas?
It's not a new idea -- they're called swept-volume volumetric displays, and they've been around for a long time [1].
But they're mostly kind of just toys. When you're limited to transparent glowing surfaces and you can't even touch them, there's really not a whole ton you can do. You can see a much larger non-spinning version made of LEDs suspended on cables [2] and it's very cool, but the novelty kind of wears off after a while, and you realize it's not the kind of display you're going to use for anything productive.
If you actually want real 3D visualization that can render anything at high quality and that you can interact with, it seems like VR/AR headsets are the way. (Though there are also the new 3D monitors that don't require glasses, but not a lot of people have gotten to see those in person yet.)
Maybe there's some kind of toy you could make with them to sell on Amazon though? Not really sure if there's a "killer app" for these things.
[1] https://en.wikipedia.org/wiki/Volumetric_display#Swept-volum...