Photographic copying apparatus

Details Photographic copying apparatus Photographic copying apparatus

1984-10-22

1986-04-29

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Focus or magnification control

355 62, G03B 2734, G03B 2740

Patent

active

045853380

ABSTRACT:
In a photographic copying apparatus, in which the plane of the original and the plane of the copying material are positioned at the stable distance from each other, an objective has two optical elements which are adjustable relative to a reference position by means of the associated step motors in the axial direction so as to thereby adjust an image scale and a focus distance. A computer for controlling the step motors and two memory devices, connected to the computer, are provided in the apparatus. The data of the objective characteristics are stored in the first memory and specific apparatus data, as well as individual user's data, are programmed by a user and stored in the second memory. The computer controls the step motors in accordance with the capacities of the two memory devices.

REFERENCES:
patent: 3832058 (1974-08-01), Gusovius

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