Projector optical system and projector apparatus using the same
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United States of America Patent
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Mar 7, 2006
Grant Date -
Mar 11, 2004
app pub date -
Aug 22, 2003
filing date -
Sep 9, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a projector optical system comprising a digital micromirror device for modulating illumination light, a device having a polarization separating surface is provided for separating a luminous flux incident on the digital micromirror device and a luminous flux emitted from the digital micromirror device from each other. A device for rotating a polarization direction is disposed between the polarization separating surface and the digital micromirror device.
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