Image display system and method
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United States of America Patent
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May 7, 2013
Issued Date -
N/A
app pub date -
Jul 28, 2010
filing date -
Oct 14, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An image display system comprises a first liquid crystal projector which projects a counterclockwise-rotating, circularly polarized light beam to form an image containing specific visual information on a screen and a second liquid crystal projector which projects a clockwise-rotating, circularly polarized light beam to form a white image on the same screen. When viewed with the naked eye, a combination of the two images projected on the screen appears totally white. A viewer wearing a dedicated viewing device equipped with an optical filter which allows counterclockwise-rotating, circularly polarized light to pass through can selectively see the image projected by the first liquid crystal projector.
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