hologram-paul

14 ms·

31.
by hologram-paul 6y ago
Yes, this is the same film we use for the printers as well. It is full-color sensitive, so you can see where this could go for the printers after we get the initial concept off the ground.
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by hologram-paul 6y ago
The different perspective images can encode a certain amount of movement, like the one of the girl blowing a kiss. We see this as the building blocks for eventual holograms with full-motion. There has been a lot of research and ideas in th
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by hologram-paul 6y ago
Definitely could be part of R&D for novel holographic optical elements for VR and AR headsets, and even solar cells and how they more efficiently use light to create electricity.
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by hologram-paul 6y ago
One of the big industrial applications is for Holographic Optical Elements (HOE). Holograms can direct light like a mirrors, color filters, or act as several optical lenses combined into one thin holographic version.
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by hologram-paul 6y ago
Our LitiHolo hologram film is full-color sensitive, and the finished holograms are transparent, so layer is possible. We've started with a printer that is single-color initially to get this off the ground, but eventually we would like
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by hologram-paul 6y ago
Good idea! And I'm also expecting that some of the people who do get the 3D Hologram Printer will be selling holograms of their 3D holograms as art, portraits, etc.
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by hologram-paul 6y ago
Thanks! The film plates are on 2mm thick glass, and the actual holographic recording layer is 16 microns, with a coversheet material over that.
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by hologram-paul 6y ago
Haas! I like it. Tiling of the holograms (making smaller holograms that can be tiled to make a larger one) is something we've definitely thought about, and even contemplated for a Kickstarter stretch goal. Wall size holograms would b
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by hologram-paul 6y ago
Currently a 45 degree view zone with 23 separate view zone images, so about every 2 degrees. Very little crosstalk.
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by hologram-paul 6y ago
Full-parallax is currently a stretch goal for our Kickstarter.
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by hologram-paul 6y ago
I was there before any of that and was working under Steve Benton, who was kind of a demi-God in holography (inventor of the rainbow hologram on credit cards today). It was a special place because of the kind of work we were doing, and I h
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by hologram-paul 6y ago
And also the subject of the ideas like the holographic universe.
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by hologram-paul 6y ago
This is definitely possible and is the basis for some computational holography. And a holographic interference pattern is definitely a way to store a 3D image in a 2D plane, and I think a part of what won the Nobel prize in physics when hol
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by hologram-paul 6y ago
Yes, we currently have full-parallax as a stretch goal, so it is definitely in the works and one of the things that lets holograms go beyond just lenticular. Thanks!
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by hologram-paul 6y ago
I feel like anywhere you see a flat 2D image could be a 3D hologram eventually. And holograms give the "whole message", so more information, better information, clearer information. That's the potential. So portraits, some
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by hologram-paul 6y ago
I guess holograms could be considered a sub-set of light field displays, but not all light field displays are holograms.
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by hologram-paul 6y ago
I could not have said it better. Real holograms also still have a lot of development yet to come and improvements that can be made, whereas many other 3D techniques out there are limited quite significantly, or are quite old and don't
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by hologram-paul 6y ago
Hogels record the intensity and direction of the light (giving the ability to "look around" the hologram object). Yes, this hogel information is permanently exposed onto the hologram film.
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by hologram-paul 6y ago
Definitely might be part of where things could go! And I'm sure there will be people who get one of the 3D Hologram Printers for doing just that. Holograms-as-a-Service?
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by hologram-paul 6y ago
Actually, recording the laser light is easier currently than trying to compute out the full fringe pattern and print. In essence the light and interference pattern captured are doing real time Fourier computation at the speed of light. 3D
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by hologram-paul 6y ago
The artifact you are seeing is a test alignment hogel on these early holograms. Do not expect that in the final system. Likewise, the demo holograms had different border areas, and some with fingerprints (definitely cleanable). The film
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by hologram-paul 6y ago
Where the 3DS is lenticular, these are real laser-formed holograms, and can be seen by multiple viewers without any headset or other gear. Right now view zone is 45 degrees.
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by hologram-paul 6y ago
Each hogel is actually a real laser-encoded holograms. So trying to make the distinction between lenticulars, Pepper's Ghost, etc. that use the name "hologram", but are not. This hogel approach to recording the hologram in s
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by hologram-paul 6y ago
I definitely want holograms of my kids! (part of why I wanted to build this all along)
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by hologram-paul 6y ago
I have often used the comparison to early personal computers. The things were mainly switched and lights, but there was potential for where it could go. I heard that even early Apple people would say "A computer in every household&quo
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by hologram-paul 6y ago
Roger that! Will get on that, and thanks for the heads up.
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by hologram-paul 6y ago
Holograms have a way of doing that to people! Thanks.
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by hologram-paul 6y ago
Thanks! The hogel size is physically determined by things like the aperture size (in our case 1x1mm to start, with a stretch goal for 0.5x0.5mm), but also laser power, and just how long it takes to print each hogel and as a result the full
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by hologram-paul 6y ago
Hello again HN! 12 months ago I told you LitiHolo (I’m the founder) was working to create a 3D Hologram Printer, and asked for your input. Well, we built it! I've been involved with hologram printers all the way back to my grad school
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Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms(litiholo.com)
180 points by hologram-paul 6y ago|121 comments

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