Automatic masking device

Details Automatic masking device Automatic masking device

1989-09-21

1991-04-02

Hix, L. T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 71, 355 75, G03B 2752

Patent

active

050050443

ABSTRACT:
A masking device employed for a composer and the like for forming a desired opening portion by covering a glass plate holding an original includes a pair of light intercepting devices for covering the glass plate from the front and rear and left and right directions. One end of each of the light intercepting devices includes a holding portion for holding an end portion of masking sheet for covering the glass plate and a member for defining an opening portion on the glass plate. The holding member and the opening portion defining member in the front and rear directions are provided spaced part from each other in the up and down directions, and the light intercepting device in the left and right directions are posed in an opening portion formed between the holding member and the opening portion defining member of the light intercepting device in the front and rear directions to define the opening portion in left and right directions.

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