Device for the projection of images
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United States of America Patent
Stats
-
Jul 28, 1992
Grant Date -
N/A
app pub date -
Mar 14, 1991
filing date -
Apr 3, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a device for the projection of images by means of liquid crystal panels, the two orthogonal components of light are used to build the image to be projected, thus giving a significant improvement in efficiency. To this end, before going through a liquid crystal panel, the light is separated into two beams having different directions as a function of their polarization, by means of a phase separator and then, after having undergone a phase modulation by the liquid crystal panel, these two beams are recombined to build the image given by the liquid crystal panel.
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Cited Art Landscape
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