Image projection display and pick-up apparatus with optical shutter
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United States of America Patent
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-
Jan 25, 1994
Issued Date -
N/A
app pub date -
Aug 5, 1992
filing date -
Apr 27, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image projection display and pick-up apparatus includes a display screen with controllable tranmissivity, and image projection device behind the screen for projecting an image onto the rear surface of the screen, and an image pick-up device, also located behind the screen, for picking up an image of a viewer located in front of the screen, and an optical shutter for preventing light from the projection device to reach the screen during image pick-up.
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Family
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Cited Art Landscape
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