4 ms·
One 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 pri
by twoodfin 3y ago
One 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?
- crazygringo 3y agoIt'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-volume_display https://en.wikipedia.org/wiki/Volumetric_display#Swept-volum... [2] https://www.ledpulse.com/ https://www.ledpulse.com/
- djmips 3y agoFor [2] it does not look swept. Appears static.
- jessriedel 3y agoYea, specifically it looks like the LEDs suspended on threads and statically fill the volume.
- 8n4vidtmkvmk 3y agoThey said as much.
- noduerme 3y agoThe killer app is clearly sending messages via R2-D2.
- crazygringo 3y agoThis... is true. It would actually make a fantastic Princess Leia message toy!
- butlike 3y ago"You have an incoming message request from: SALES TEAM" "Help me, dev team, you're my only hope."
- drcode 3y agoThe innovation is spinning the entire computer, instead of just the display, reducing complexity
- dekhn 3y agoIt seems more likely that a mechanical engineer would end up using a slip ring, so the computer doesn't need to spin.
- doubleg72 3y agoThis is exactly what would be used, a Moog slip ring.
- draugadrotten 3y agoThanks. Enjoyed the explanation of a Moog ring in this video: https://www.youtube.com/watch?v=bBrZw9CKDZo https://www.youtube.com/watch?v=bBrZw9CKDZo
- i_am_proteus 3y agoMercotac makes nice slip rings too! Most of the ones I have seen/worked with have been much bigger than this small display, though.
- m3kw9 3y agofor a 32 inch display, you gonna get a motor that may need to spin like a mofo in an area of pi*32^2.
- nine_k 3y agoThe display needs to be pretty strong physically.
- aj7 3y agoI’ve seen 1kW Chinese closed loop servomotors, with driver for < $500. And you don’t care about acceleration, just continuous torque.
- mckravchyk 3y agoI wonder if you could put small displays in an array and somehow synchronize them to act as one big display.