Illuminator with reflector filter

Details Illuminator with reflector filter Illuminator with reflector filter

G - Physics

03

C

240/75

G03C 5/08 (2006.01) F21V 7/00 (2006.01) F21V 7/07 (2006.01) F21V 7/08 (2006.01) F21V 7/09 (2006.01) F21V 9/04 (2006.01) G03B 27/54 (2006.01)

Patent

CA 1068244

EFFICIENT ILLUMINATION SYSTEM Abstract of the Disclosure An illumination system of particular use in document copiers wherein an incandescent lamp which may be of the tungsten-halogen type is located at the focal point of a reflector shaped as a conic section such as elliptical cylinder, directing light rays toward an interference filter for separating the IR radiation and redirecting the IR rays back to the incandescent lamp for heating the lamp. Both cold mirror and hot mirror embodiments of the system are disclosed.

262534

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