Lighting fixture

Details Lighting fixture Lighting fixture

1996-10-09

1998-01-13

Dority, Carroll B.

Illumination

Light modifier

Reflector

F21V 700

Patent

active

057071420

ABSTRACT:
An improved lighting fixture of the type having a horizontally positioned unjacketed arc lamp in a two piece reflector having a front bowl-shaped reflector that issues a relatively narrow beam and a rear dish-shaped reflector positioned behind the arc tube that issues a wider beam spread. Although such a fixture inherently has some glare and spill control by exploiting the horizontal, transverse positioning of the arc tube across the reflector combination, the invention improves on glare and spill control from this fixture by re-orienting the rear reflector so that it is tipped slightly downward. The upper part of the beam from the rear reflector is therefore moved so that it does not cause glare or spill off of the target area, and also it increases efficiency of the fixture by placing more usable light on the target area. Optionally a visor can be used to further control glare and spill.

REFERENCES:
patent: 1267882 (1918-05-01), McFaddin
patent: 2113777 (1938-04-01), Waterbury
patent: 4293901 (1981-10-01), Hernandez
patent: 5075828 (1991-12-01), Gordin et al.
patent: 5582479 (1996-12-01), Thomas et al.
GE Ligthing Systems, Ultra.star.Sport.TM.Floodlight Product Guide; 12 Brochure, OLP-2518A; General Electric Company, Hendersonville, NC 28793; May 1996(5M)GELS, Date Unknoun.

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