Steroscopic Three Dimensional Large Screen Liquid Crystal Display.
Patent, Filed 22 Nov 85 patented 3 Mar 87,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A three dimensional large screen liquid crystal projection display utilizes two liquid crystal light valves in tandem to produce polarization-type stereoscopic images in a large screen display format. Each light valve, driven separately by video input derived either from live scenes or computer generated data, presents one view of a stereoscopic image pair. Using one projection lamp, one projection lens, and a polarizing beamsplitter cube, the two images are optically combined and projected simultaneously onto a non-depolarizing screen. The particular optical geometry used results in orthogonal linear polarizations for the two images, so they can be viewed stereoscopically using polaroid glasses with appropriately oriented polarizing axes. Keywords Patents. jhd
- Electrooptical and Optoelectronic Devices