Concerning the moving piston: Rather than have a moving plane, they could be usi... | Hacker News

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		wnkrshm on May 7, 2015 \| parent \| context \| favorite \| on: VoxieBox Displays 3D Images Just Like R2D2’s Messa... Concerning the moving piston: Rather than have a moving plane, they could be using stacked, electrically-switchable films. Ones that you can switch from transparent to only translucent (i.e. scattering) very quickly. (http://en.wikipedia.org/wiki/Smart_glass)

munk on May 7, 2015 [–]

We did consider that but smart glass is too far slow to turn on and off for it to work.

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