Reduction of lamp strobing effects in a reproducing apparatus

Details Reduction of lamp strobing effects in a reproducing apparatus Reduction of lamp strobing effects in a reproducing apparatus

1980-07-02

1982-10-26

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Focus or magnification control

355 3R, 355 11, 355 71, G03B 2734, G03B 2740, G03B 2770

Patent

active

043558917

ABSTRACT:
An optical system is provided for a reproducing machine which scans an object to be reproduced, utilizing a pulsing light source to illuminate successive incremental portions of the object. The ray reflected from the scanned image is directed along an optical path onto the imaging plane. The scanned image is directed onto the imaging plane by a reflector element which has an active slit formed on its surface. The reflector element is positioned an optimum distance from the imaging plane such that the image is defocused at more than one magnification ratio.

REFERENCES:
patent: 3423153 (1969-01-01), Kent
patent: 3998539 (1976-12-01), Kidd
patent: 4090788 (1978-05-01), Massengeil
patent: 4113373 (1978-09-01), Eppe et al.
patent: 4113379 (1978-09-01), Harada et al.
patent: 4226527 (1980-10-01), Lama
patent: 4248517 (1981-02-01), Nishikawa
patent: 4275960 (1981-06-01), Habegger et al.
patent: 4305650 (1981-12-01), Knox
patent: 4305650 (1981-12-01), Knox

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