Optical reduction system featuring the provision of borders

Details Optical reduction system featuring the provision of borders Optical reduction system featuring the provision of borders

1977-08-17

1978-09-26

Shoop, William M.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 57, 355 60, G03G 1500

Patent

active

041165543

ABSTRACT:
The optical system disclosed is incorporated in a copying machine and has provision for changing magnification of original documents of diverse sizes while maintaining a common image plane projection and enabling the use of common reference edges at a selected reference corner for any original document that might be used and also either maintains common reference edges in the image plane or produces borders on the reduced-sized image without deliberately causing the center of the reduced image to coincide with the center of the non-reduced image. The system contemplates the combined movement of the lens element as well as one of a pair of mirrors to insure that the original document surface and the image plane remain in their fixed positions, regardless of the magnification factor chosen. The lens element is movable forwardly and reversely along the optical path as well as transversely with respect thereto.

REFERENCES:
patent: 2927503 (1960-03-01), Zollinger
patent: 3395610 (1968-08-01), Evans et al.
patent: 3437410 (1969-04-01), Tregay et al.
patent: 3542467 (1970-11-01), Ferguson et al.
patent: 3614222 (1971-10-01), Post et al.
patent: 3703334 (1970-07-01), Knechtel et al.

Affiliated with

Also associated with

Rating

Optical reduction system featuring the provision of borders does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical reduction system featuring the provision of borders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical reduction system featuring the provision of borders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2085888