Optical illumination device for use in a copying apparatus

Details Optical illumination device for use in a copying apparatus Optical illumination device for use in a copying apparatus

1988-02-26

1989-05-02

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 14E, 355 69, G03B 2774, G03B 2780

Patent

active

048273147

ABSTRACT:
An optical illumination device for a copying apparatus which includes a light source, a series of reflectors, and a light detecting member for detecting the amount of light reflected off of the original document to control the intensity of the light source. The series of reflectors includes two reflectors on the opposite side of the optical path from the light source which are integrally formed to provide an L-shape configuration in cross section. One of the integrally formed reflectors reflects the light from the document onto the light detecting member.

REFERENCES:
patent: 4084898 (1978-04-01), Kurita
patent: 4124294 (1978-11-01), Nakamura
patent: 4413903 (1983-11-01), Corona et al.
patent: 4518249 (1985-03-01), Murata et al.
patent: 4540279 (1985-09-01), Irie et al.
patent: 4636063 (1987-01-01), Takai et al.
patent: 4653904 (1987-03-01), Imamura

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