Light guiding plate
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United States of America Patent
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-
Apr 9, 1996
Grant Date -
N/A
app pub date -
Aug 23, 1994
filing date -
Aug 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light guiding plate has grooves or ridges with respective bottom or peak portions having surfaces with curvilinear sectional contours. The curvilinear portions replace angular intersections of slanted surfaces of the grooves or ridges and thereby provide uniform luminance over an entire face of the light guiding plate.
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