Incandescent visual display system having a shaped reflector
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United States of America Patent
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-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Jun 19, 1996
filing date -
Jun 19, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A visual display sign having a lighting unit that provides high-efficiency light output from a non-point source of light. The reflector in the lighting unit is sealed and has a shaped reflecting surface obtained by generating a curve from a set of predetermined curve reference points. The shaped reflecting surface provides a light output efficiency of about 60 percent from a non-point source of light and spreads the emitted light about eight degrees from the plane of circumference of the reflector. The lighting units are attached to the visual display sign at a downward angle of about eight degrees from the horizontal.
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Cited Art Landscape
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