The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 1981

Filed:

Dec. 06, 1979
Applicant:
Inventor:

Joseph E Moore, Northport, AL (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
355 77 ; 355 35 ; 355 71 ;
Abstract

An initial step of inspection of a positive color transparency is performed to determine the darkest detail area thereof to be reproduced and is subsequently followed by trial enlarger exposing of a color separation negative film sheet through the positive color transparency and a half-tone screen with sufficient light to properly expose the corresponding area of the trial film. Thereafter, the trial film is developed with sufficiently less developing time and greater developer strength (to compensate for the less developing time) to achieve the desired 'dot size' in the aforementioned corresponding area of the negative as well as in the lighter detail areas thereof. If sufficient detail of the aforementioned corresponding area is not brought out, a greater exposure time is allowed during exposure of a subsequent trial color separation negative film sheet and correspondingly less development time of the subsequent negative film sheet is allowed until the desired 'dot size' throughout the resultant color separation negative is achieved. Thereafter the actual color separation negatives to be utilized are produced using the same exposure time, developing time and developer strength determined by the aforementioned trial steps.


Find Patent Forward Citations

Moore, Joseph. (1981). Method of producing color separation negatives with reduced contrast (U.S. Patent No. 4293216). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4293216

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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