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A comment on Show HN: LitiHolo – a desktop 3D hologram printer that makes true holograms.

Re:Show HN: LitiHolo – a desktop 3D hologram printer that ma... by btbuildem on Thursday March 18, 2021 @03:16PM (#26506417)
OK, so it's not a true hologram -- you cannot rotate it in multiple different ways to see what's on the other side, how does it look from the bottom, etc.

It's a sequence of frames encoded by viewing angles respective to the print surface. This printer lets you make your own lenticular cards, except they're smooth in texture.

EDIT: thanks for expanding my understanding of what holograms are :)

[ Parent | on HN ]
Re:Show HN: LitiHolo – a desktop 3D hologram printer that ma... by BugsJustFindMe on Thursday March 18, 2021 @03:21PM (#26506456)
> OK, so it's not a true hologram

https://en.wikipedia.org/wiki/Hologram disagrees. This appears to be using real laser holography.

[ Parent | on HN ]
Re:Show HN: LitiHolo – a desktop 3D hologram printer that ma... by hologram-paul on Thursday March 18, 2021 @03:22PM (#26506469)
Amen!
[ Parent | on HN ]
Re:Show HN: LitiHolo – a desktop 3D hologram printer that ma... by hologram-paul on Thursday March 18, 2021 @03:19PM (#26506442)
No, these are true-laser recorded holograms, capturing the interference pattern of the laser light. The current printer uses horizontal parallax only, but we do have full-parallax as a stretch goal for the Kickstarter.
[ Parent | on HN ]