Lamp for producing light intensity uniformity

Details Lamp for producing light intensity uniformity Lamp for producing light intensity uniformity

1991-06-20

1992-12-08

Husar, Stephen F.

Illumination

Light modifier

Reflector

362216, 362304, 362310, F21V 700

Patent

active

051692309

ABSTRACT:
A circular light emitting filament is positioned adjacent an annular light blocking lip extending from a bowl-shaped reflector. A substantially conical reflector portion extends from the cancer of the reflector and has an apex coincident with the lamp projection axis. The result is that all of the light is reflected before being projected from the lamp and good light intensity uniformity is attained at the illuminated scene.

REFERENCES:
patent: 1935729 (1933-11-01), Rosenbaum
patent: 2415635 (1947-02-01), Hopkins
patent: 2538681 (1951-01-01), Gangbin
patent: 4275433 (1981-06-01), Caldwell
patent: 4355350 (1982-10-01), Mader
patent: 4481563 (1984-11-01), Snyder et al.
patent: 4518224 (1985-05-01), Habro
patent: 4646215 (1987-02-01), Levin et al.
patent: 4733338 (1988-03-01), Feher et al.
patent: 4855886 (1989-08-01), Eijkelenboom et al.

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