Reproduction camera

Details Reproduction camera Reproduction camera

1975-06-17

1977-05-03

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Focus or magnification control

354 76, 354198, 355 61, G03B 2734, G03B 2740

Patent

active

040211150

ABSTRACT:
Reproduction camera provided with means for displacing the lens and the original table, which include signal devices that emit electrical signals respectively representing the positions occupied by the lens and by the original table. Each signal device consists of a cam-roll type decade counting unit with drive shaft, of which each roll consists of a cam wheel with ten cams, and each cam wheel cooperates with a rotating ten-step switch with digital output.

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

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