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:
Nov. 13, 1984
Filed:
Aug. 07, 1981
Klaus D Schaefer, Braunfels, DE;
Ernst Leitz Wetzlar GmbH, Wetzlar, DE;
Abstract
Device for the corrective compensation of the altering aperture error formed by varying the aperture stop in reproducing systems of image recording apparatus, for instance photographic cameras. The reproducing system (2,3,4) comprises at least one optical member (3,22) affecting the aperture error and displaceably supported along the optical axis (23) of the reproducing system (2,3,4) for varying its relative position with respect to the other components (2,4) of the reproducing system. Setting means (17,28) are further provided which as a function of the variation in the aperture stop displace the optical member (3,22) by an extent corresponding to a corrective compensating nominal value along the optical axis (23) of the reproducing system (2,3,4).