Luminance regulation

Details Luminance regulation Luminance regulation

G - Physics

02

B

G02B 26/04 (2006.01) F21V 8/00 (2006.01) F21V 9/10 (2006.01) F21V 23/00 (2006.01) G01J 1/22 (2006.01) G01J 1/24 (2006.01) G02B 5/00 (2006.01)

Patent

CA 2075990

ABSTRACT Known processes and devices for regulating the luminance of a surface capable of being illuminated cause changes of the colour temperature or local fluctuations of the lighting intensity. The disclosed process varies the light flux by generating uniformly distributed shadowings, so that a uniform distribution of the lighting intensity, as well as a uniform angular distribution of the luminous intensity, can be achieved. A particularly appropriated diaphragm is composed of a disk provided with several mutually parallel sickle-shaped openings.

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