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TOPIC: Why do we have to wear 3D glasses to watch 3D movie? by @Gengotti

Why do we have to wear 3D glasses to watch 3D movie? by @Gengotti 1 year 4 months ago #1


A 3D image is made from 2 different point of views, one for the right eye, one for the left eye.
At the cinema, these 2 images are projected on the same space, the screen.
The only way to separate these (slightly) different sources is to project them with a different light polarization.
The glasses we have to wear have the same filters used in projection to separate the sources, so each eyes see only the relative image, and our brain fuses them together giving to our brain the sense of deepness.

Franci Gengotti
3D Guru since 1983
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Nguyen Quang Tri
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Last Edit: 1 year 4 months ago by N.Q.T..
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