Anti-glare filter with improved viewing area
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United States of America Patent
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Feb 26, 1991
Grant Date -
N/A
app pub date -
Mar 6, 1989
filing date -
Mar 6, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A filter for reducing the glare of a viewing screen caused by ambient light and increasing the viewing area constructed of a substantially transparent sheet of material having first and second faces. The first face is substantially planar while the second face has a plurality of V-shaped grooves, each groove being formed by two walls. The geometry of the V-shaped grooves is such that ambient light enters the filter and becomes trapped therein due to internal reflection.
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Cited Art Landscape
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