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Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

litiholo.com

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Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#71

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 days (MIT Media Lab), and have built custom industrial versions for in-house commercial hologram work. But more recently LitiHolo has been focused on simple educational holograms kits.…

This is a transmission hologram, not a reflection hologram, right?

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#72
Im very impressed with the quality given the seeming lack of vibration mitigation. The only hologram I ever made involved working on a basement floor for stability and having to hold my breath and remain motionless during the exposure.

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#74

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 days (MIT Media Lab), and have built custom industrial versions for in-house commercial hologram work. But more recently LitiHolo has been focused on simple educational holograms kits.…

I remember once seeing a hologram of a microscope where if you put your eye in the right spot you could see the item under magnification. Would something like that be possible with this system? Another thing that comes to mind is pairing this with some kind of computational holographic camera or something using those awesome new imaging TOF range sensors. Being able to make semi-instant holographic polaroids would probably capture people's imaginations.

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#75

Im very impressed with the quality given the seeming lack of vibration mitigation. The only hologram I ever made involved working on a basement floor for stability and having to hold my breath and remain motionless during the exposure.

Thanks! Yes, because these are true laser-recorded holograms the fringe pattern is quite high frequency. But the design of the 3D Hologram Printer greatly minimizes the issues and you don't need separate vibration isolation equipment.

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#76
post #73

Hi, cool release! Now that the printer is out, are you considering bringing back the "analog" film kits that were demonstrated e.g. by The Thought Emporium here: https://www.youtube.com/watch?v=aTB2ryoWIFU

That is a possibility!

We liked the hologram kits, but we needed something to take us to the next level with our hologram technology, and the 3D Hologram Printer is that step for us.

The hologram film continues to be available, and will be the same film we use for the printer.

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#77

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 days (MIT Media Lab), and have built custom industrial versions for in-house commercial hologram work. But more recently LitiHolo has been focused on simple educational holograms kits.…

I remember once seeing a hologram of a microscope where if you put your eye in the right spot you could see the item under magnification. Would something like that be possible with this system? Another thing that comes to mind is pairing this with some kind of computational holographic camera or something using those awesome new imaging TOF range sensors. Being able to make semi-instant holographic polaroids would pr…

The microscope hologram is a cool one! Could definitely do something like that with our 3D Hologram Printer.

One of the other very memorable holograms out there is the Kiss, which is also possible (see our Kiss demo hologram).

I think holographic cameras would certainly be something that would be in the future for us. Glad to see you are already looking there!

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#78

Earlier quoted context omitted.

Thanks! The film plates are on 2mm thick glass, and the actual holographic recording layer is 16 microns, with a coversheet material over that.

I agree with the feedback of having a picture better capture the thickness of the holograph plate (or whole assembly, whatever that's called). From the Buzz Lightyear picture I got the impression that it would be something like a thick picture frame, but that doesn't match the 2mm description. Would it be possible to use these as badge photos? I feel like it would be pretty cool to have a hologram picture on your bad…

The glass film plates keep the film stabilized for the hologram exposures, but it is possible to peel the film off after recording the holograms.

Will work on seeing if we can get better imagery of the hologram thickness.

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#79
post #71

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 days (MIT Media Lab), and have built custom industrial versions for in-house commercial hologram work. But more recently LitiHolo has been focused on simple educational holograms kits.…

This is a transmission hologram, not a reflection hologram, right?

These are reflection holograms.

Also sometimes called white-light holograms because they can be viewed with a regular spot light, sunlight, or even a smartphone flashlight.

Re: Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms

#80
post #68

Earlier quoted context omitted.

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 day hologram cameras, CAD output, advertising, and yes eventually hologram television/displays. But we are starting with something more simple, and not trying to promise everything to everyone. Tha…

I certainly hope you’re right, I want to see holographic displays replace lcd for one thing, even though I’m a bit skeptical. 3d tv flopped, it could have been a start of something, terrible as it was. Lightfield cameras didn’t take off either, maybe because of the price. Let’s hope this could be a beginning!

That's the idea! Hologram technology has a lot of untapped potential, and is still in early stages of growth.
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