The current system for 3-D imaging is produced by projecting two images simultaneously on the same screen. When viewers wear 3-D glasses, they're able to see the two images as one, which then provides the appearance of a three dimensional figure. A new system is being developed that would only use one projector and not require glasses.
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The new method requires a special coating on the screen to change the polarization of the light as it passes through. It's the change in polarization that creates a 3-D image.
The method is still being tested, and while promising, it may be years before this technology reaches commercial audiences.
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This story originally published on Mashable here.