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.
Patent No.:
Date of Patent:
Sep. 28, 1999
Filed:
Aug. 25, 1997
Applicant:
Inventors:
Markus Fussel, Munchen, DE;
Gunter Findeis, Sauerlach, DE;
Friedrich Jacob, Munchen, DE;
Knut Oberhardt, Foching, DE;
Assignee:
AGFA-Gevaert AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03C / ; G03F / ;
U.S. Cl.
CPC ...
355 64 ; 355 35 ; 355 71 ; 430 22 ; 430 30 ;
Abstract
A copying apparatus is adjusted in order to produce high-quality copies of transparent negatives or diapositives having excessive variations in brightness. The adjustment is performed using a reference master. The apparatus is properly adjusted when a copy of the reference master meets specific criteria.