Scanning exposure device

Details Scanning exposure device Scanning exposure device

1988-03-09

1989-09-05

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Original moves continuously

355 45, 355233, 355 57, 355 60, 355 65, 355235, G03B 2748, G03B 2750, G03B 2770

Patent

active

048643599

ABSTRACT:
A scanning exposure device comprises a projection lens, a photosensitive member disposed beneath the projection lens, two movable mirrors disposed with their reflecting surfaces facing upward and having asymmetrical inclinations relative to each other, and a stationary mirror disposed with its reflecting surface facing downward to form an optical path together with the movable mirrors. The two movable mirrors are driven for scanning movements so as to expose a picture image from the projection lens on the photosensitive member through a slit. Thus, an optical path is established in which the light beam projected from the projection lens located at a higher position is guided toward the photosensitive member located at a lower position.

REFERENCES:
patent: 3535038 (1970-10-01), Stieuenart et al.
patent: 3649126 (1972-03-01), Koizumi
patent: 3907418 (1975-09-01), Okuyama
patent: 4084212 (1978-04-01), Tiger
patent: 4181424 (1980-01-01), Okada et al.
patent: 4212532 (1980-07-01), Suzuki
patent: 4278346 (1981-07-01), Toriumi et al.
patent: 4464046 (1984-08-01), Kanazawa et al.

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