Illumination – Light modifier – Refractor
Patent
1994-03-07
1999-01-26
Lazarus, Ira S.
Illumination
Light modifier
Refractor
362 27, 362331, 362339, F21V 502
Patent
active
058631143
ABSTRACT:
A light emissive panel unit includes a light source for emitting light, a prism plate into which the light emitted by the light source means incident, a part of the light being reflectable and another part of the light passing through the prism plate, and an adjusting element for partially adjusting an amount of light emitted from a surface of the prism plate.
REFERENCES:
patent: 4791540 (1988-12-01), Dreyer, Jr. et al.
patent: 4913529 (1990-04-01), Goldenberg et al.
patent: 5136480 (1992-08-01), Pristash et al.
patent: 5386347 (1995-01-01), Matsumoto
patent: 5394255 (1995-02-01), Yokota et al.
patent: 5408388 (1995-04-01), Kobayashi et al.
patent: 5414599 (1995-05-01), Kaneko et al.
Fukuhara Motohiko
Miyahara Masaki
Nagatani Shinpei
Tanaka Katsunori
Yamada Fumiaki
Fujitsu Limited
Lazarus Ira S.
Sember Thomas M.
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