Quasi-indirect monosymmetrical lighting system

Details Quasi-indirect monosymmetrical lighting system Quasi-indirect monosymmetrical lighting system

1975-06-24

1977-08-16

Adams, Russell E.

Buckles, buttons, clasps, etc.

240 4631, 240 4633, 240 73BC, 240 78H, 240 78HA, F21S 302

Patent

active

040428176

ABSTRACT:
A perimeter lighting system using monosymmetrical quasi-indirect light fixtures recessed in the ceiling of a room, near the walls, to direct light toward the walls and thereby cause it to be reflected from them at optimum elevation for maximum overall lighting of the typical working area in the room, thereby producing a high contrast rendition factor over much of the work task zone.

REFERENCES:
patent: 1900436 (1933-03-01), Dourgnon
patent: 2428827 (1947-10-01), Beck
patent: 3560729 (1971-02-01), Liberman
patent: 3600569 (1971-08-01), Matteson
"Studies of Illumination & Brightness," Illumination Engineering, Jan. 1947, pp. 96-97.

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