Optics: image projectors – Color filter
Patent
1993-11-30
1996-02-20
Will, Thomas B.
Optics: image projectors
Color filter
353 52, 359 40, G03B 2100
Patent
active
054933510
ABSTRACT:
A liquid crystal projector includes a light source, a color filter for adding color projection image, a liquid crystal panel for forming a projection image on it, a projection lens and an optical unit located between the color filter and the liquid crystal panel for optically coupling the color filter and the liquid crystal panel. The color filter is separately located from the liquid crystal, and therefore the increase in temperature on the color filter because of absorbing the light from the light source has less effect on the liquid crystal panel.
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Hamagishi Goro
Kanatani Keiichi
Kishimoto Shunichi
Kosaka Haruhisa
Sakata Masahiro
Dowling William C.
Sanyo Electric Co,. Ltd.
Will Thomas B.
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