Uniform light source

Details Uniform light source Uniform light source

1989-12-29

1991-10-08

Lazarus, Ira S.

Illumination

Revolving

362 26, F21V 800

Patent

active

050559788

ABSTRACT:
A light source in which a lamp aperture is arranged to illuminate a large panel provided with a reflective surface by having light rays from the aperture pass through a trough wherein such rays are changed so they are all substantially at angles greater than the critical angle necessary for total internal reflection. Light reflected from the panel is emitted through a window with the aid of light scatterers.

REFERENCES:
patent: 4630895 (1986-12-01), Abdala, Jr. et al.
patent: 4648690 (1987-03-01), Ohe
patent: 4729067 (1988-03-01), Ohe
patent: 4729068 (1988-03-01), Ohe
patent: 4830899 (1990-05-01), Nakahashi et al.
patent: 4909604 (1990-03-01), Kobayashi et al.
patent: 4924612 (1990-05-01), Kopelman

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