Stereoscopy—the illusion of depth created by showing a separate image to each eye—is at least as old as photography itself. In the last few years, however, stereoscopic 3D movies have come back in a ...
Even with current digital technology, the latest Hollywood blockbusters still rely on clunky glasses to achieve a convincing 3-D effect. New optics research offers the prospect of glasses-free, 3-D ...
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