F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 8/00 (2006.01) G02B 6/032 (2006.01) G02B 6/04 (2006.01) G02B 6/10 (2006.01) G09F 13/18 (2006.01)
Patent
CA 2122819
A hollow lighting structure (42) having an optically transmissive light emitting surface (44). At least one light guide (36, 38, 40) extends within the structure. A light source (30, 32, 34) emits light into the light guide. The light guide's light transmissivity is varied as a function of position on the surface of the light guide such that the angular and spatial distribution of light emitted from the light guide yields a predetermined distribution of light intensity as a function of position on the light emitting surface. The predetermined distribution of light intensity is preferably substantially uniform at all points on the light emitting surface.
Minnesota Mining And Manufacturing Company
Oyen Wiggs Green & Mutala Llp
LandOfFree
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