Light distribution apparatus

Details Light distribution apparatus Light distribution apparatus

1984-02-02

1985-07-09

Argenbright, Tony M.

Illumination

Revolving

362339, F21V 704

Patent

active

045286175

ABSTRACT:
Compact devices for distributing light from a small area source to evenly light a larger area each comprise a member having a first plurality of surfaces which intercept respective slices of a light beam extending in a first direction and internally reflect the slices to a second substantially perpendicular second direction. A second plurality of surfaces intercept respective portions of the slices of light travelling in the second direction and internally reflect those portions generally perpendicularly toward an output surface to evenly light the output surface.

REFERENCES:
patent: 3761704 (1973-09-01), Takeichi et al.
patent: 4124879 (1978-11-01), Schoemer
patent: 4128298 (1978-12-01), McMillan
patent: 4234914 (1980-11-01), Boesen
patent: 4257084 (1981-03-01), Reynolds
patent: 4277817 (1981-07-01), Hehr
patent: 4323951 (1982-04-01), Pasco
patent: 4387414 (1983-06-01), Hensleigh

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