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shagie • today at 1:43 AM • 3 replies • view on HN

One of the most magical parts of the hologram for me is that if you cut it (the film media) in half, you have two copies of the hologram. The reduction in size is a loss of resolution - but the scene stays the same.

Though that also is part of the reason that a they're not more common. Each hologram is the film rather than a "print".

If someone wants to make 100 holograms to be able to sell them as more than a one off art piece you're making 100 units of the film.


Replies

grumbel • today at 6:03 AM

> if you cut it (the film media) in half, you have two copies of the hologram.

A hologram is much like a window, you can look through a big window or a small window, and see what's at the other side both times, but the big window still gives you a lot more viewing angles than the small one. Cutting a hologram in half gives you half a hologram, not two copies of the hologram, it's just that you can change your viewing angle to still see what's on the other side, but that will be a different image than with the full hologram.

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joebig • today at 2:41 AM

That's Fourier space f**kery for you.

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midnitewarrior • today at 4:07 AM

You could also cut them into pieces to duplicate the holograms. They would obviously be smaller. A cut hologram includes the whole hologram, just from the perspective of that part of the cut piece.

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