F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
240/143
F21V 8/00 (2006.01) G02B 6/032 (2006.01) G02B 6/04 (2006.01) G02B 6/10 (2006.01)
Patent
CA 1215957
TITLE PRISM LIGHT GUIDE LUMINAIRE INVENTOR Lorne A. Whitehead ABSTRACT OF THE DISCLOSURE The luminaire for a prism light guide system consists of a longitudinal hollow structure made of transparent dielectric material. A predetermined portion of the wall area of the structure has inner and outer surfaces which are in octature, and the luminaire further has light release mechanisms to allow light to escape from the structure. Light release mechanisms include non-planar surfaces, rough surfaces, round corners in the corrugated surface, as well as devices for changing the light directional angle. The luminaire can further include devices posi- tioned within the hollow structure for modifying the angular distribution of the light. These include diffusion screens or mirrors. Some of the walls may also be covered by a reflective material to redirect any escaping light back into them.
457304
Canadian Patents And Development Limited - Societe Canadienne De
Rymek Edward
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