Apparatus for modifying images on photographic film

Photocopying – Contact printing – With scanning

Patent

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Details

355 52, G03B 2710, G03B 2768

Patent

active

044758090

ABSTRACT:
A photographic exposure apparatus for modifying graphic images by adding or subtracting image area in precise amounts from all defining edges of the graphic image as it is being exposed upon a light sensitive sheet, includes a chassis having a horizontal top. A film board, having an overlying light sensitive film, overlies the chassis top for movement in an orbital path relative to the chassis. A fixed position film carriage, supporting a film having an image to be reproduced, is superimposed on the film board in contiguous contact with the light sensitive sheet. A motor driven eccentric motion dial drive guide is connected with an under carriage supported by the chassis top and connected with the film board. The drive guide is manually adjusted and the motor energized for orbital movement of the film board in a path of predetermined magnitude during exposure of the image on the light sensitive sheet.

REFERENCES:
patent: 2286883 (1942-06-01), Weber
patent: 3264106 (1966-08-01), Alldis
patent: 3743415 (1973-07-01), Gilman
patent: 3927942 (1975-12-01), Byers
patent: 4029410 (1977-06-01), Richter
patent: 4105328 (1978-08-01), Wasson et al.
patent: 4268166 (1981-05-01), Byers
patent: 4324489 (1982-04-01), Byers
patent: 4390272 (1983-06-01), Anderson

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