Luminaire for interior lighting

Details Luminaire for interior lighting Luminaire for interior lighting

1995-08-11

1997-09-02

Cariaso, Alan

Illumination

Revolving

362292, 362297, 362342, 362346, F21V 704

Patent

active

056624034

ABSTRACT:
A luminaire used in a room is provided with a brightness effect to avoid giving glare directly to people in the room, to give a desired illuminance on a working surface, and to give a high brightness sensation in the overall room. One or more sparkling regions are provided in which the luminance L (cd/m.sup.2) is in a range of 3.3.ltoreq.log L.ltoreq.-0.3 log w+2.63, when seen from any position in the room between a perpendicular angle of 60 degrees to less than 90 degrees, with the direction immediately beneath the center of the luminaire being 0 degrees. The apparent size of the sparkling region is the solid angle w (steradian (sr)).

REFERENCES:
patent: 2981827 (1961-04-01), Orsatti et al.
patent: 3124310 (1964-03-01), Lipscomb
patent: 3710095 (1973-01-01), Donohue et al.
patent: 4152752 (1979-05-01), Niemi
patent: 4222094 (1980-09-01), Wolar
patent: 4931910 (1990-06-01), Wills
patent: 5136491 (1992-08-01), Kano
patent: 5335152 (1994-08-01), Winston

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