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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

#12
post #9

Cool idea. But I'm not seeing a practical application outside of the "hey this is cool!" factor.

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", and people would ask, "What would I do with a computer?" and their best answer was "It's a great way to store and file your recipes."

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

#13
post #9

Cool idea. But I'm not seeing a practical application outside of the "hey this is cool!" factor.

There's nothing wrong with vanity items, like any picture on the wall.

I definitely want holograms of my kids! (part of why I wanted to build this all along)

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

#15
I'm on the verge of contributing to the Kickstarter, trying to get a sense of what I'm seeing:

1) http://www.litiholo.com/images/buzz-on-the-printer-crop-809x... Wondering what the artifacting is on the left side of the hologram itself? Is this a problem with this specific hologram, or will all holograms have this artifacting?

2) Same image, but I'm not quite sure Buzz is centered in the middle of the ... work plate? Glass? Others are a bit more aligned to the edges, but are instead offset in various directions. For aesthetics, what would prevent a hologram from being perfectly centered and rotated to the plate?

3) They all have a little stray hologram pixel in the top right corner of each hologram, intentional? Fixable? Shortcoming of the technique?

4) A lot of the plates look a little smudged/finger-printy. Is it possible to clean the hologram plates/film after "printing" to have a clean shiny surface?

5) I don't see an example of an image that has been printed corner-to-corner? How much of this hologram film has been applied? Is it possible to make a full plate hologram? And/or trim the edges afterwards? (It looks like glass plates, so... probably hard for a layperson to cut?)

6) Open source firmware? Gcode? Toolchain? Hacker friendly? (Ctrl-f Firm, Open, or Code resulted in 0 results.)

Just to end in a compliment sandwich, it's totally cool and would definitely have a place in budding maker's labs, and new niche stores! I could see the output being relatively popular on like... Etsy. Super affordable at $1,600 when stacked next to a 3D Printer, or Laser Cutter, etc. I love the idea and DO want one of my own... But trying to identify the shortcomings.

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

#16
Maybe this is the wrong definition but I read “true hologram” to mean a 3D image made of light, this looks more like one of those images that used to be on the cover of Guinness World Records.

Edit: I see OP is the founder and this is a smaller project. Looks really cool and sorry if that sounded negative! Just not what I expected from the title.

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

#17

Maybe this is the wrong definition but I read “true hologram” to mean a 3D image made of light, this looks more like one of those images that used to be on the cover of Guinness World Records.

The Nintendo 3DS seems like it's in this vein too— a lenticular display coupled to gyros and eye-tracking.

Does these holograms work for more than one viewer at once?

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

#18

Maybe this is the wrong definition but I read “true hologram” to mean a 3D image made of light, this looks more like one of those images that used to be on the cover of Guinness World Records. Edit: I see OP is the founder and this is a smaller project. Looks really cool and sorry if that sounded negative! Just not what I expected from the title.

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 segments allows of capturing people, computer graphics, and much more than analog holograms that can only capture inanimate object. However our LitiHolo film can do analog holograms as well, if interested.

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

#19

Maybe this is the wrong definition but I read “true hologram” to mean a 3D image made of light, this looks more like one of those images that used to be on the cover of Guinness World Records.

The Nintendo 3DS seems like it's in this vein too— a lenticular display coupled to gyros and eye-tracking. Does these holograms work for more than one viewer at once?

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.

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

#20

Earlier quoted context omitted.

The Nintendo 3DS seems like it's in this vein too— a lenticular display coupled to gyros and eye-tracking. Does these holograms work for more than one viewer at once?

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.

Huh, very cool— is it totally passive then, once "printed"? It seems like you're encoding into each pixel what it would have to be for every possible view angle, and I'm having trouble getting my head around how this works.
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