Illuminating device having non-absorptive variable...

Details Illuminating device having non-absorptive variable... Illuminating device having non-absorptive variable...

F - Mech Eng,Light,Heat,Weapons

21

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240/152

F21V 8/00 (2006.01) F21V 7/00 (2006.01) G09F 13/04 (2006.01) G09F 13/14 (2006.01)

Patent

CA 1288406

ILLUMINATING DEVICE HAVING NON-ABSORPTIVE VARIABLE TRANSMISSIVITY COVER Abstract of the Disclosure An illuminating device with a light source and a substantially non light absorptive cover. The light transmissivity of the cover at any point on the cover varies as a function of the position of that point, such that the luminance of light escaping through the cover at that point has a selected luminous exitance as a function of the position of that point.

598269

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