Luminaire

Details Luminaire Luminaire

2007-10-02

2007-10-02

Luebke, Renee (Department: 2875)

Illumination

Light source and modifier

Including reflector

C362S303000, C362S364000

Reexamination Certificate

active

10549233

ABSTRACT:
A luminaire for indirect lighting has a main reflector, a counter-reflector with a light emission window in a plane T. The counter-reflector and reflector are oppositely arranged. The main reflector has a reflecting surface built up from a plurality of facets n having a curvature in cross-section. The curvature of each respective facet n is such that light coming from a light emission window and hitting a given facet n is reflected through an angle of reflection Φn<=αn−β, in which, β is a smallest angle of reflection with the plane T at which glare is just counteracted, and αnis a greatest angle of reflection with the plane T at which reflected light just clears the counter-reflector.

REFERENCES:
patent: 2713631 (1955-07-01), Spinetta
patent: 5988836 (1999-11-01), Swarens
patent: 29519708 (1997-04-01), None

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