Photocopying – Projection printing and copying cameras
Patent
1974-12-19
1977-03-08
O'Connor, Edna M.
Photocopying
Projection printing and copying cameras
355 8, 355 45, 355 51, G03B 2732
Patent
active
040110117
ABSTRACT:
A unity magnification catoptric image-forming system and an illumination system on the one hand, and an object- and image-surface supporting means on the other hand, are arranged for relative movement to retain the object and image surfaces in unity magnification conjugate planes of the catoptric system while effecting a scanning-type exposure of successive portions of the image surface to successively illuminated portions of the object. Fine motion mechanisms permit accurate preliminary adjustment of the object- and image-receiving surfaces relative to each other while under visual examination with the aid of the catoptric image-forming system.
REFERENCES:
patent: 3052155 (1962-09-01), Hurin et al.
patent: 3625127 (1971-12-01), Tsuda
patent: 3652157 (1972-03-01), Blackert
patent: 3698808 (1972-10-01), Delmas
patent: 3748015 (1973-07-01), Offner
Hemstreet Harold S.
Markle David A.
Newell William H.
Offner Abe
Giarratana S. A.
Masselle F. L.
O'Connor Edna M.
The Perkin-Elmer Corporation
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