Surface lighting device
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United States of America Patent
Stats
-
N/A
Issued Date -
Apr 3, 2003
app pub date -
Jul 23, 2002
filing date -
Jul 25, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A surface lighting device including a light guiding plate (11) including two light incident surfaces (11a) formed at opposite end surfaces of the light guiding plate and a light exit surface (11b); two elongated light sources (12) that face the two light incident surfaces; and a reflector plate (14) positioned to face a rear surface of the light guiding plate, and to reflect light toward said light exit surface. The light guiding plate includes (i) alight projecting device (11d) that projects light from the light exit surface; (ii) a light quantity control device that controls a quantity of the light to be emitted, by the light projecting device, from the light exit surface; and (iii) a light condensing device (11e) that condenses the light to be emitted from the light exit surface.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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