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:
Dec. 27, 2011
Filed:
Mar. 23, 2010
Applicants:
Ernst Schworm, Munich, DE;
Gabriel Bartenschlager, Kirchheim, DE;
Inventors:
Ernst Schworm, Munich, DE;
Gabriel Bartenschlager, Kirchheim, DE;
Assignee:
Digital Imaging Systems GmbH, Kirchheim/Teck-Nabern, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B 13/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems and methods to achieve an auto-focus camera module having a precise bearing with low friction have been disclosed. Ball bearings are guiding a lens barrel. The balls of the ball bearings are running in guide slots and are held together by ball cages. Creeping of the balls is prevented by a positioning pin being deployed between a fixed part of a carrier of the camera module and a movable part of the lens barrel.