Device for and method of producing photographs of controlled contrast
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United States of America Patent
Stats
-
Apr 1, 1986
Grant Date -
N/A
app pub date -
Sep 20, 1983
filing date -
Oct 1, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for producing photographs of controlled contrast wherein a negative to be copied is evenly illuminated by a light source, the image thereof is directed by an optical member to an image detecting and conversion unit which produces a 'non-sharp mask' of said negative under control of a respective control unit. Both, the 'non-sharp mask' of the image and the image of the negative are directed into an image plane where they are superimposed and exposed upon a photo sensitive material.
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Cited Art Landscape
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