Microfilming system with zone controlled adaptive lighting

Details Microfilming system with zone controlled adaptive lighting Microfilming system with zone controlled adaptive lighting

1985-04-09

1986-07-22

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

355 51, 355 65, 355 70, G03B 2774, G03B 2780

Patent

active

046015728

ABSTRACT:
A system for producing images of documents is disclosed. The system provides varying levels of illumination to different areas of the document being recorded, depending upon relative image densities across the document. A slit aperture image area is divided into a plurality of illumination zones and the image density of each zone is sensed and adjusted individually. Efficient and orderly unattended off-loading of photographed documents is accomplished by a movable drawing member over which large documents are automatically draped, properly collated. A catch tray is provided for automatically off-loading and collating smaller documents.

REFERENCES:
patent: 3279312 (1966-10-01), Rogers, Jr.
patent: 3479119 (1969-11-01), Miller et al.
patent: 3609038 (1971-09-01), Koishorn
patent: 3936186 (1976-02-01), Boland et al.
patent: 4153364 (1979-05-01), Suzuki et al.
patent: 4265532 (1981-05-01), McIntosh

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