Shutter device for photographic printer

Details Shutter device for photographic printer Shutter device for photographic printer

1983-03-02

1984-10-02

Hix, L. T.

Photocopying

Projection printing and copying cameras

Illumination systems or details

3542341, 354253, G03B 2772

Patent

active

044744641

ABSTRACT:
A shutter device for a photographic printer includes a pair of paddle devices respectively driven by a pair of rotary solenoids. The solenoids are actuated such that one paddle moves to open the optical path to begin an exposure, and the other paddle moves to close the optical path to end the exposure, and remains in the optical path until moved to start a further exposure. In this manner, the opening and closing functions of the paddles are reversed with each exposure.

REFERENCES:
patent: 378426 (1888-02-01), Bliss et al.

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