F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 5/02 (2006.01) F21V 5/00 (2006.01) F21V 7/00 (2006.01) F21V 11/06 (2006.01) F21V 11/14 (2006.01) G02F 1/13357 (2006.01)
Patent
CA 2250312
The light output of a back-coupled illumination system is improved by recycling reflected and misdirected light rays. A reflector (150) at the light source (112) and an array of microprisms (122) having reflective elements (160) therebetween efficiently redirect errant light rays to increase the total available light output and improve efficiency. Both specular and diffuse reflective materials may be used in combination to enhance light output.
On améliore l'émission de lumière d'un système de rétro-éclairage en recyclant les rayons lumineux réfléchis et mal dirigés. Un réflecteur (150) placé au niveau d'une source d'éclairage (112) et une matrice de microprismes (122) pourvue d'éléments réfléchissants (160) entre lesdits microprismes redirigent avec efficacité les rayons lumineux errants pour accroître l'émission totale de lumière disponible et améliorer son efficacité. Des matériaux réfléchissants ayant un rayonnement tant spéculaire que diffus peuvent être utilisés pour intensifier l'émission de lumière.
Hou Janpu
Kuper Jerry Wayne
Unger Waltraud Rosalie
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
Honeywell International Inc.
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