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United States of America Patent
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-
Nov 20, 1990
Grant Date -
N/A
app pub date -
Nov 30, 1989
filing date -
Dec 9, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In projection device light from a point light source unit is reflected by a first reflecting mirror to produce parallel rays, which are applied to a color active matrix liquid crystal display unit. The parallel rays having passed through the liquid crystal display unit are converted by a second reflecting mirror into a bundle of rays of a desired solid angle for projection onto a screen.
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