Liquid-crystal projector with light beam reduction lens array for improved brightness of image outer portions
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United States of America Patent
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Feb 2, 1988
Grant Date -
N/A
app pub date -
Jul 1, 1986
filing date -
Jul 29, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A liquid-crystal projector reduces outer portions of a light beam corresponding to a projection image from a liquid-crystal display panel illuminated with light from a light source by a light beam width reduction lens array in order to increase the luminance of the outer beam portions. The projection image passing through the light beam width reduction lens array is compensated for attenuation in luminance of the outer beam portions, and is then projected onto a screen surface through a projection lens system.
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