Projection system having low astigmatism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 7, 2004
Grant Date -
Mar 13, 2003
app pub date -
May 29, 2002
filing date -
Jun 11, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
LCD projection systems that use reflective LCD imager units commonly use one or more polarization beamsplitters to separate the light incident on the imager from the light reflected by one or more respective imagers. The polarizing beamsplitters introduce astigmatism to the image light from the imagers. According to the present invention, the polarization beamsplitters are adapted to reduce the astigmatism.
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Family
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Cited Art Landscape
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