Optics: image projectors – Stereoscopic
Patent
1991-01-18
1992-09-08
Cuchlinski, Jr., William A.
Optics: image projectors
Stereoscopic
353 81, 359466, 359471, 359472, G03B 2114, G03B 3522
Patent
active
051462460
ABSTRACT:
An apparatus for presentation of apparent three-dimensional images without special viewing glasses is disclosed. A projection system projects right and left stereo images from a stereoscopic slide so that the right stereo image and the left stereo image become superimposed relative to one another on a viewing screen. The viewing screen comprises light transmissive slit-raster members and a light diffusion member. The viewing screen is adapted to allow the right and left stereo images to pass between the opaque raster members and be perceived only by the right and left eyes, respectively, of the viewer as the left image formed in a raster-like manner on the diffusion member is blocked by further opaque raster members and prevented from being perceived by the right eye and the right stereo image also formed in a raster-like manner on the diffusion member is blocked by the further opaque raster members and prevented from being perceived by the left eye. Thus, the right eye sees only the right stereo image and the left eye sees only the left stereo image thereby replicating the binocular human vision as the brain interprets the two points of view observed by the right and left eyes as a three-dimensional image.
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patent: 3425775 (1969-02-01), Jacobsen
patent: 4671632 (1987-06-01), August
patent: 4872750 (1989-10-01), Morishita
Cuchlinski Jr. William A.
Dowling William C.
Handal Anthony H.
Holoptics International, Inc.
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