Bi-modal illumination apparatus

Details Bi-modal illumination apparatus Bi-modal illumination apparatus

1982-02-22

1983-06-28

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 67, 355 75, G03G 1500

Patent

active

043902677

ABSTRACT:
Flash lamps operate in two modes depending upon the position of the platen cover of a copier. In the first mode, the platen cover is closed and a short duration relative high-peak intensity flash pulse illuminates a document at the exposure platen. In the second mode, the cover is raised or opened to accommodate a three-dimensional object, such as a magazine or book, and a flash pulse having a longer time interval but lower peak intensity is provided.

REFERENCES:
patent: 3885166 (1975-05-01), Moser et al.
patent: 4090108 (1978-05-01), Johnson et al.
patent: 4239374 (1980-12-01), Tatsumi et al.
Xerox Disclosure vol. 3, No. 1, Jan./Feb. 1978.

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