Photographic copier

Details Photographic copier Photographic copier

1985-09-20

1987-03-03

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Collapsible or portable

355 55, G03B 2752

Patent

active

046471871

ABSTRACT:
A photographic copier has a first platform for supporting an original to be copied, and a second platform for supporting copy paper. A focusing system is disposed between the platforms and includes a plate which can be mounted at different distances from the platforms. The plate has a central opening which removably receives a tubular holder. The holder is supported in the opening by a ring which permits the position of the holder relative to the plate to be adjusted. Two lenses are removably mounted in the holder and serve to project an image of the original onto the copy paper. Different magnifications can be achieved in that the copier comes equipped with a variety of holders having different lengths, and a few selected lenses having different optical characteristics. The magnification is changed by simply interchanging holders and/or lenses, and adjusting the position of a holder to be used relative to the plate.

REFERENCES:
patent: 4184763 (1980-01-01), Handsman et al.
patent: 4220410 (1980-09-01), Bloodgood
patent: 4310231 (1982-01-01), Konishi et al.

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