Scan type anamorphic magnifying apparatus

Details Scan type anamorphic magnifying apparatus Scan type anamorphic magnifying apparatus

1986-08-11

1988-01-12

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Distortion introducing or rectifying

355 8, 355 57, G03B 2768

Patent

active

047194928

ABSTRACT:
The present invention relates to a scan type anamorphic magnifying apparatus capable of a so-called anamorphic magnification for appropriately enlarging or reducing an image of an original document scanned by a slit exposure method through varying a vertical-lateral proportion of the image, and more particularly to the scan type anamorphic magnifying apparatus comprising a first anamorphic optical element including a cylindrical lens and the like having a negative refracting power in a scanning direction and a second anamorphic optical element including a cylindrical lens and the like having a positive refracting power in the scanning direction both of which are provided to be cooperative with each other in a projection optical path extending toward a photosensitive member.

REFERENCES:
patent: 4298271 (1981-11-01), Sugiura et al.
patent: 4536084 (1985-08-01), Tokuhara
patent: 4650317 (1987-03-01), Oushiden et al.

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