G - Physics – 02 – B
Patent
G - Physics
02
B
88/99
G02B 3/00 (2006.01) G02B 19/00 (2006.01) G02B 27/09 (2006.01)
Patent
CA 1147182
ABSTRACT REDIRECTING SURFACE FOR DESIRED LIGHT INTENSITY PROFILE An optical device for redistributing incident radiation, such radiation having a non-uniform intensity distribution. The resultant redistributed radiation having a narrower desired intensity distribution in a predetermined region of an output plane. The optical device comprises a redirecting surface of a lens or reflector, for relocating at least a portion of the incident light. In one application, particles are illuminated in the output plane. The redirecting surface has a central portion and a peripheral portion, each said portion being disposed and configured to receive part of the incident radiation. The central portion is constructed to permit the incident radiation to irradiate the predetermined region of the output plane, and the peripheral portion is constructed to redirect specific rays of the incident radiation to specific locations in the predetermined region of the output plane, whereby the specific locations are further irradiated so as to create the desired intensity distribution within the predetermined area.
362822
Borden Ladner Gervais Llp
Coulter Electronics Inc.
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