Reflector for automobile headlight with improved full beam

Details Reflector for automobile headlight with improved full beam Reflector for automobile headlight with improved full beam

1987-07-01

1988-12-27

Dority, Jr., Carroll B.

Illumination

Light modifier

Reflector

362346, F21V 700

Patent

active

047945044

ABSTRACT:
This invention relates to a reflector for an automobile headlight comprising a reflecting quadric having substantially the surface of a paraboloid of revolution intersected by upper and lower truncation planes, an electric lamp filament being situated substantially at the focus of said quadric to provide full beam lighting by reflection on said quadric of the luminous beams emitted by said filament and traversed by an optical glass situated in front of said quadric. The reflector according to this invention is characterized by the fact that at least the lower truncation plane of the reflector is equipped, on its internal surface illuminated by the full beam filament of the electric lamp, with a plurality of reflecting spherical elements spaced in a concentric arrangement comparable with Fresnel echelons with respect to their common axis passing through the focus of the useful reflecting conic of the reflector, this focus being also their common center.

REFERENCES:
patent: 1199071 (1916-09-01), Heckert
patent: 4349866 (1982-09-01), Molnar
patent: 4531018 (1982-09-01), Fratty

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