Light beam amplifier

Details Light beam amplifier Light beam amplifier

1990-02-02

1991-12-10

Lazarus, Ira S.

Illumination

Self powered lamp

With movable focusing element

362298, F21L 1502

Patent

active

050723464

ABSTRACT:
A light-condensing reflector positioned at the opposite side or end of a light source from a primary paraboloidal reflector in opposed reflector-to-reflector relationship to amplify light. The light-condensing reflector is selectively smaller in diameter than the primary reflector such that an annular or ring-like light orifice is formed between the outside periphery of a base of the light-condensing reflector and the inside periphery of a base of the primary reflector. Light amplified and condensed by the two opposed reflectors is collimated in an annular light beam through the annular light orifice. When applied to flashlights, spotlights and vehicle headlights, this invention increases the light intensity substantially.

REFERENCES:
patent: 1219583 (1917-03-01), Perry
patent: 1575327 (1926-03-01), Garford et al.
patent: 1675877 (1928-07-01), Burdt
patent: 1950918 (1934-03-01), Forbes
patent: 2120836 (1938-06-01), Grimes
patent: 2277981 (1942-03-01), Horton
patent: 4458303 (1984-07-01), Berns
patent: 4755916 (1988-07-01), Collins
patent: 4855885 (1989-08-01), MacEachern et al.

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