Photocopying – Projection printing and copying cameras – Step and repeat
Patent
1976-12-13
1978-06-27
Griffin, Donald A.
Photocopying
Projection printing and copying cameras
Step and repeat
355 73, 355 75, G03B 2742, G03B 2760, G03B 2762
Patent
active
040971430
ABSTRACT:
A step-and-repeat camera wherein the multiple exposure frame format can be varied and preset by the operator. Thus, the number of exposure frames per column and the number of columns per fiche can be varied as desired so as to accommodate the sizes of different sets of materials to be photographed, for example. Means are provided for blanking out specific areas in fiche to accommodate title placement or other identification, spacing between successive sets of materials, and so forth. Visual means are provided for identifying a particular frame about to be exposed, and also for separately identifying successive exposures on the fiche film itself. Other improvements herein include an improved vacuum platen that accurately positions the film for proper exposure at a desirably reduced plan area. Film spool and film take-up cartridges with associated equipment are supplied in improved structural design. The camera carriage itself, by a pair of stepping motors, is advanced so that successive frames in each column and successive columns can be accommodated. Various exposure formats are likewise made possible through the design of the equipment.
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Buchanan Vernon G.
Rhoades Carl E.
Griffin Donald A.
Microfilm Service Corporation
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