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Microsoft working on eye tracking technology for 3D without glasses

Posted on Tuesday, June 15 2010 @ 02:31:28 CEST by

Popular Science reports Microsoft researchers are developing a new 3D technology that can deliver a 3D image to two different viewers' eyes at once, without having to use any 3D goggles.
We've seen small-scale glasses-free 3-D displays before, like the LCD screen on Fuji's 3-D camera that use light directed at each eye individually to deliver a stereoscopic image. Microsoft's display does a similar trick, but on a much larger scale. Their lens has a series of LEDs along the bottom edge of the screen that switch off and on rapidly and at varying angles to control where the light goes.

The screen can deliver a 3-D image to two different viewers' eyes at once. In order to do so, its onboard computer has to track their eyes to target the light to each individual. In the past, such systems have been very bulky to account for air space needed between the lens and projector; Microsoft's design, though, uses a lens that tapers from 11 millimeters thick at the top to six millimeters at the bottom. This taper means that the light can travel through the lens instead of thin air, Applied Sciences Group Director Steven Bathiche told Technology Review, meaning the entire setup can substantially shrink in size.



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