Available light marginal illumination system

Details Available light marginal illumination system Available light marginal illumination system

1976-05-27

1977-09-13

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 57, G03G 1500

Patent

active

040478114

ABSTRACT:
A reproducing apparatus including an optical system for viewing an object such as a document and for projecting an image thereof onto a photosensitive surface selectively at a first copy image magnification or at a reduced copy image magnification. The optical system includes a lamp for illuminating the object. A margin illumination system is provided utilizing stray light derived from the lamp of the optics system for illuminating margin regions of the photosensitive surface to prevent their subsequent development. The margin illumination system is selectively operable in the reduction mode of operation.

REFERENCES:
patent: 3671121 (1972-06-01), Albert
patent: 3778148 (1973-12-01), Fujitsuka et al.
patent: 3792913 (1974-02-01), Simmons
patent: 3829209 (1974-08-01), Buddendeck et al.
patent: 3944356 (1976-03-01), Hayne
patent: 3967896 (1976-07-01), Looney et al.

Affiliated with

Also associated with

Rating

Available light marginal illumination system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Available light marginal illumination system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Available light marginal illumination system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-270373