Mask photorepeater apparatus

Details Mask photorepeater apparatus Mask photorepeater apparatus

1977-11-15

1979-05-22

Hix, L. T.

Photocopying

Projection printing and copying cameras

Step and repeat

355 54, G03B 2742

Patent

active

041556429

ABSTRACT:
A mask photorepeater apparatus for the production of small size masks has an objective-holder whose lens has a magnification very much less than 1 and an object-holder able to move in a plane. For each printing operation, under the action of servomechanisms, the objective-holder rises or drops to bring its object plane within the plane of the object to be printed.

REFERENCES:
patent: 3103850 (1963-09-01), Khoury et al.
patent: 3260153 (1966-07-01), Abbot, Jr. et al.
patent: 3704657 (1972-12-01), Sliwkowski
patent: 3722996 (1973-03-01), Fox

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