Patent · US Active

Camera module having a low-friction movable lens

US8086099B2 · kind B2 · utility

8Cited by

8References

16Claims

0Family size

Assignee

Digital Imaging Systems GmbH · DE

Inventors

Ernst Schworm · Munich, DE
Gabriel Bartenschlager · Tauberbischofsheim, DE

Key dates

Filing date	Mar 23, 2010
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Mar 23, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/001
WIPO fieldOptics
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.