Slit-scanning type image exposing system

Details Slit-scanning type image exposing system Slit-scanning type image exposing system

1985-08-07

1988-01-05

Hix, L. T.

Photocopying

Projection printing and copying cameras

Original moves continuously

355 51, 355 68, 355 71, G03B 2748, G03B 2750

Patent

active

047179392

ABSTRACT:
A slit-scanning type image exposing system for slit-exposing an original image to a photosensitive member which is being moved in a predetermined direction at constant speed, includes a lens and a light source which are moved in a first direction during exposure mode and in a second direction opposite to the first direction during returning mode. In one form of the present invention, an exposure control unit is provided in the region where the light path from the original image to the photosensitive member through the lens is virtually fixed in space. In another form, a shutter member is provided movably between the advanced position where the light path is blocked and the retracted position located away from the light path.

REFERENCES:
patent: 3535036 (1970-10-01), Starkweather
patent: 3535038 (1970-10-01), Stievenart et al.
patent: 3869204 (1975-03-01), Wilby
patent: 4113373 (1978-09-01), Eppe et al.
patent: 4171905 (1979-10-01), Boschet
patent: 4279497 (1981-07-01), Satomi
patent: 4291973 (1981-09-01), Brooke
patent: 4362382 (1982-12-01), Simpson
patent: 4373803 (1983-02-01), Shogren
patent: 4419008 (1983-12-01), Nishimoto

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