Lighting fixture having Fresnel reflector with high reflection c

Details Lighting fixture having Fresnel reflector with high reflection c Lighting fixture having Fresnel reflector with high reflection c

1976-07-28

1978-03-28

Griffin, Donald A.

Illumination

Light source and modifier

Including reflector

362348, F21V 709, F21V 700

Patent

active

040816672

ABSTRACT:
Lighting fixture having housing with an open side. A lamp is mounted in the housing and produces rays which pass through the open side. The housing carries an internal reflecting surface for reflecting light rays from the lamp through the open side. The internal reflecting surface includes Fresnel type portions for reflecting light rays from the lamp at high angles through the open side. In certain applications, the open side would be enclosed by a glass enclosure. In order to increase the efficiency of the lighting fixture, an anti-reflection coating can be provided on both sides of the glass enclosure. BACKGROUND OF THE INVENTION

REFERENCES:
patent: 1347268 (1920-07-01), Godley
patent: 1427504 (1922-08-01), Whyte
patent: 1558270 (1925-10-01), Morrison
patent: 1570503 (1926-01-01), Kralicek
patent: 2145732 (1939-01-01), Nickle
patent: 2330924 (1943-10-01), Rolph
patent: 2852980 (1958-09-01), Schroder
patent: 3165265 (1965-01-01), Clause
patent: 3644730 (1972-02-01), Ogle et al.
patent: 3654451 (1972-04-01), Starr

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