Indirect lighting fixture

Details Indirect lighting fixture Indirect lighting fixture

1980-12-15

1983-06-14

Walsh, Donald P.

Illumination

Elongated source light unit or support

Plural sources or supports therefor

362151, 362241, 362247, 362260, 362297, 362346, F21S 300

Patent

active

043886752

ABSTRACT:
An indirect multiple bulb fluorescent light fixture has an elongated rectangular housing with inverted V-shaped reflector members located beneath each of the bulbs and with an additional inverted V-shaped reflector member located between each pair of bulbs in the fixture. All of the interior surfaces of the fixture, including the side walls of the rectangular housing for the fixture, have specular surfaces. The angles of the V-shaped reflector members are selected to cause substantially all of the light emanating from the bulbs to be reflected out of the fixture and to minimize light reflected back into the bulbs for dispersing the light emanating from the fixture uniformly on the ceiling above the fixture without requiring translucent covers or other diffusers. This results in a significantly improved efficiency of the fixture over conventional fixtures which rely upon translucent covers to effect the desired light dispersion.

REFERENCES:
patent: 2556690 (1951-06-01), Guth
patent: 3829677 (1974-08-01), De Llano
patent: 4112483 (1978-09-01), Small
patent: 4174533 (1979-11-01), Barthes

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