Full range platemaker optical system

Details Full range platemaker optical system Full range platemaker optical system

1990-11-27

1992-02-25

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Reflector between original and photo-sensitive paper

G03B 2770

Patent

active

050917455

ABSTRACT:
A graphic camera/platemaker optical system is described having a copyboard for an original subject, a lens, an image plane and a mirror. The copyboard, lens and mirror are independently movable such that they may move in different directions in order to produce a variable scale image or reproduction of the original onto the image plane. The movable elements are positioned by separate stepping drives controlled by a common microprocessor.

REFERENCES:
patent: 3703334 (1972-11-01), Knechtel et al.
patent: 3752924 (1971-03-01), Matsumoto et al.
patent: 4032231 (1977-06-01), Zucker
patent: 4084897 (1978-04-01), Queener
patent: 4253763 (1981-03-01), Schleifenbaum
patent: 4451142 (1984-05-01), Takenaka et al.
patent: 4488804 (1984-12-01), Takagi
patent: 4989033 (1991-01-01), Yamashita

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