Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-04-26
1988-01-12
Britton, Howard W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 88, 350132, H04N 1300
Patent
active
047195070
ABSTRACT:
A stereoscopic imaging system employs an image encoder that comprises a variable optical retarder which is positioned face-to-face with an image source and an image decoder that comprises only passive optical elements. In a first embodiment, the imaging system (50) uses a single variable optical retarder (22) to encode perspective view images by selectively developing zero and half-wave retardation. A passive viewing apparatus (52 and 54) employs retardation plates (56, 58, and 64) to decode the images. In a second embodiment, the imaging system (100) uses a pair of variable optical retarders (101 and 102) to encode perspective view images in left- and right-circularly polarized light. A passive viewing apparatus (106 and 108) employs quarter-wave plates (110 and 114) to decode the images. Each of the preferred embodiments is suitable for use with broadband image source phosphors and in processing perspective view images in full color.
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Angello Paul S.
Britton Howard W.
Peng John K.
Tektronix Inc.
Winkelman John D.
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