Copying apparatus

Details Copying apparatus Copying apparatus

1991-11-20

1993-03-16

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Focus or magnification control

355 24, 355 51, 355233, 355235, G03B 2734, G03B 2740, G03B 2770

Patent

active

051948940

ABSTRACT:
A copying apparatus is provided with a first scanning unit for scanning a first document to expose a photosensitive material and a second scanning unit for scanning a second document to expose the photosensitive material, and, at a position where the optical path of the scanning light of the first scanning unit and the optical path of the scanning light of the second scanning apparatus align with each other, a zoom lens is disposed to modify magnification. Consequently, a lens used exclusively for a high magnification becomes unnecessary.

REFERENCES:
patent: 4110030 (1978-08-01), Knechtel
patent: 4158497 (1979-06-01), Suzuki et al.
patent: 4192609 (1980-03-01), Tani et al.
patent: 4312587 (1982-01-01), Ariga et al.
patent: 4318609 (1982-03-01), Knechtel et al.
patent: 4395118 (1983-07-01), Komori et al.
patent: 4803519 (1989-02-01), Asada et al.
patent: 4933722 (1990-06-01), Fujiwara
patent: 4957368 (1976-05-01), Goshima et al.
patent: 4970543 (1990-11-01), Ito et al.
patent: 5055880 (1991-10-01), Fujiwara

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