Image projection system
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United States of America Patent
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-
Aug 18, 1998
Grant Date -
N/A
app pub date -
Aug 27, 1996
filing date -
Aug 27, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image projector is provided with a light valve having an upstream side and an downstream side. A light source is disposed on the upstream side of the light valve, and a front lens system with an entrance pupil is disposed on the downstream side of the light valve. A back optical system is disposed between the light source and the light valve. The back optical system has a nonimaging device with an exit aperture that is either imaged into the entrance pupil of the front lens system (Kohler) or imaged onto the light valve (Abbe).
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International Classification(s)
Cited Art Landscape
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