G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/1335 (2006.01) F21V 8/00 (2006.01)
Patent
CA 2280739
An optical illumination system is comprised of: (a) a light source means having a reflective emitting surface and an intrinsic luminance (brightness); (b) a light transmitting means (c) a light reflecting means to reflect and recycle a portion of the light emitted by the light source means back to the light source means; and (d) a light extracting means to extract a portion of the light from the light transmitting means and direct the light to the output of the illumination system. The resulting illumination system achieves an enhanced output luminance. Under certain conditions, it is possible to achieve an output luminance that is greater than the intrinsic luminance of the bare light source.
L'invention porte sur un système d'éclairage optique comprenant: (a) une source lumineuse comportant une surface réfléchissante et une luminance intrinsèque (brillance); (b) un dispositif de transmission de la lumière; (c) un réflecteur de lumière destiné à réfléchir et recycler une partie de la lumière émise par la source lumineuse et renvoyée à cette dernière; et (d) un dispositif d'extraction de lumière destiné à extraire une partie de la lumière provenant du dispositif de transmission et diriger la lumière vers la sortie du système d'éclairage. Le système d'éclairage obtenu garantit une luminance de sortie supérieure à la luminance intrinsèque de la source lumineuse brute.
Beeson Karl W.
Zimmerman Scott M.
Zou Han
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
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