Surface light source device

Details Surface light source device Surface light source device

1992-07-08

1995-05-09

Price, Carl D.

Illumination

Revolving

362 27, 362330, 362339, F21V 800

Patent

active

054145996

ABSTRACT:
A surface light source device comprising at least one light source, a transparent panel, a diffusing panel and a reflecting surface. This surface light source device is configured so that brightness is enhanced in a direction perpendicular to the diffusing panel by disposing, on the side of a front surface of the transparent panel, a transparent sheet which has protrusions having a saw-tooth-like sectional shape formed on one surface thereof.

REFERENCES:
patent: 4642736 (1987-02-01), Masuzawa et al.
patent: 4729067 (1988-03-01), Ohe
patent: 4975807 (1990-12-01), Ohashi
patent: 5040098 (1991-08-01), Tanaka et al.
patent: 5064276 (1991-11-01), Endo et al.
patent: 5136480 (1992-08-01), Pristash et al.

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