Film exposure apparatus and method of exposure using the same

Details Film exposure apparatus and method of exposure using the same Film exposure apparatus and method of exposure using the same

1991-03-19

1993-03-30

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Step and repeat

355 40, 355 41, G03B 2742

Patent

active

051988577

ABSTRACT:
In a film exposure apparatus and method of exposure using the same which are disclosed herein, a plurality of frames arranged in a longitudinal direction of a belt-shaped film are exposed sequentially to light for transcript of an image onto each of the frames. The film exposure apparatus comprises an illumination system, a photomask disposed at a location to which light from the illumination system is applied, a photomask position adjusting mechanism, a projection lens of projecting an image of the photomask irradiated, and a film feed mechanism for step-feeding the film one frame by one frame. The belt-shaped film is provided with at least two or more film-side alignment marks on each frame, and the photomask is provided with a circuit pattern whose image is to be projected and transferred onto the film, and photomask-side alignment marks in correspondence to the film-side alignment marks.

REFERENCES:
patent: 3689991 (1972-09-01), Aird
patent: 4109158 (1978-08-01), Blitchington et al.
patent: 4435076 (1984-03-01), Tatsunosuke
patent: 4855792 (1989-08-01), Holbrook et al.

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