Lighting device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 3, 1990
Issued Date -
N/A
app pub date -
Sep 22, 1988
filing date -
Jul 26, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The lighting device is equipped with a light guide having a linear Fresnel reflection surface consisting of steps of continuously alternating reflecting surfaces having two different reflection angles. A light source is installed at one end of the light guide of the above construction so that the light from the light source is emitted from the irradiation surface of the light guide after being reflected by the linear Fresnel reflection surface.
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Family
International Classification(s)
Cited Art Landscape
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