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- Hacker News
- Oof, there's a pretty impressive startup in the space: https://lookingglassfactory.com/by zygy
- 3blue1brown’s video on holography is one of the coolest math videos I’ve ever seen. Basically magic.by case540
- There are a few of us around who still make them. I do film photography and have my own darkroom already for that purpose. Adding holography on top of that is a relatively minor lift, and every once in a while the urge strikes and I'll get the equipment out.
The main challenge is that there are, to my knowledge, only two remaining manufacturers of the plates - in France, and in Russia.
by ninefathom - I had the opportunity to work with a lenticular display a few years back. Just takes an HDMI input and can render a 3d scene like you'd build in Unity and you'd be able to see at least a range of aspects of the image at once by looking from different angles. Not fully 360 but maybe 90 degrees of perspective at once. It was neat but we spent weeks trying to make an impressive demo and none of it was fun for more than 5 seconds.by tootie
- I went to a whole art exhibition of holograms as a kid that blew me away, and I've always wondered why holograms are so rare ever since. I had one for a while, the famous one of the microsope with the lens that you can actually look through to see a computer chip inside. There's nothing else like it.by Nition
- Very few people in the comments seem to understand what holography is. A hologram is not a “3D display” that mimics a sci-fi movie or TV show. A hologram is photographic media / display technology that records and transmits phase as well as intensity of incident photons. By capturing all the properties of the electromagnetic field that strikes the film, and re-emitting the same EM wave when stimulated, the hologram ends up being a full “3D picture” because after all, the light that hits your eyes ends up being the same as if you were looking at the actual scene. But that’s a consequence, not the defining property.
3blue1brown has a great explainer video on what holograms are: https://youtu.be/EmKQsSDlaa4
by adastra22 - I wanted to pick up doing holography again, but I discovered that Integraf, founded by legend TJ ( https://www.integraf.com/about/tung-h-jeong ), stopped selling the film and supplies.
Much of the supply chain for modern hobbyist holography was sourced out of Russia, and the ongoing wars have made those materials unavailable.
There are some newer processes out there, but there were probably thousands of us that grew up using those HoloKit holography kits distributed by TJ.
- Dan Smalley's research lab at BYU is actively developing 3D volumetric holography technology.
The video is a bit old, but it has a few fun demos of the capabilities they've developed.
by ubj