Light conductive plate and plane illuminating apparatus using the same
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United States of America Patent
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Sep 9, 1997
Grant Date -
N/A
app pub date -
Feb 10, 1995
filing date -
Feb 10, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A light conductive plate used in a side light source type plane illuminating apparatus having a light source arranged on one side portion of a transparent light conductive plate, has a dimming pattern composed of a plurality of curves provided on the back of said light conductive plate. Portions of each of the curves of the dimming pattern located nearer the edge near a light source extend substantially perpendicular to the edge and portions of each of the curves of the dimming pattern located farther from the edge near a light source extend substantially parallel to the edge.
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