Luminant sign
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United States of America Patent
Stats
-
Dec 1, 1998
Grant Date -
N/A
app pub date -
Feb 4, 1997
filing date -
Feb 4, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A luminant sign comprises a base including a pair of opposed casings and a image plate made of transparent acrylic resin and engaged with the base. The base has a circuit board with a plurality of illuminators disposed therein. A front face and a rear face of the image plate have a number of display areas defined thereon by peripheral grooves of pictures or words. Each display area has a plurality of reflective surfaces formed therein in directions non-parallel to the beam directions of the illuminators. With this arrangement, each display area of the image plate will achieve a uniform intensity.
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Family
International Classification(s)
Cited Art Landscape
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