System for making covering masks for use in photoengraving

Details System for making covering masks for use in photoengraving System for making covering masks for use in photoengraving

1988-09-21

1990-06-12

Hix, L. T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

358296, H04N 121

Patent

active

049337122

ABSTRACT:
A systen for making covering masks used for the photoengraving process comprising a hard copy unit for preparing a hard copy on which negative images are printed while being enlarged to a certain magnification, a tabulator unit for inputting coordinates data which represents the outline of a predetermined image on the hard copy, a processing unit for processing the coordinates data inputted and outputting an instruction about the outline of the predetermined image which has been reduced to a value equal to the certain magnification, and a cutter-provied plotter unit for cutting the light shielding layer of a stripping film responsive to the instruction outputted from the processing unit.

REFERENCES:
patent: 4498109 (1985-02-01), Sakamoto
patent: 4694354 (1987-09-01), Tanaka et al.

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