Slit illumination system for copying machine and the like

Details Slit illumination system for copying machine and the like Slit illumination system for copying machine and the like

1983-11-16

1985-05-21

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 8, 355 51, 362346, G03B 2754

Patent

active

045182493

ABSTRACT:
The present invention concerns with a slit illumination system for use in a copying machine or the like, which includes a light source, a first and second elliptical mirrors, a third plane mirror, and a supplemental mirror positioned behind the light source and between the first and second mirrors. The supplemental mirror directs the light which does not contribute to the illumination by the first and second mirror to the original through a light path extending directly to the original and/or a light path extending to the original through the third mirror.

REFERENCES:
patent: 3947115 (1976-03-01), Hamaguchi
patent: 3982116 (1976-09-01), Sakuma
patent: 4225923 (1980-09-01), Bloemendaal et al.
patent: 4239383 (1980-12-01), Peterson
patent: 4295186 (1981-10-01), Sugiura

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