Optical projection system with a novel lens system
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United States of America Patent
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Apr 2, 1996
Grant Date -
N/A
app pub date -
Dec 30, 1994
filing date -
Jan 18, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical projection system, capable of displaying an M.times.N number of pixels and having a reduced optical path and hence a reduced size, wherein M and N are integers, comprises a non-point light source, an array of M.times.N actuated mirrors, a projection screen, a projection lens and a lens system including a first lens unit, a second lens unit and an optical baffle located therebetween, wherein the optical baffle is provided with a plurality of apertures and light absorbing regions, each of the lens units includes an array of M.times.N microlenses.
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