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:
Feb. 28, 2012
Filed:
Dec. 03, 2008
Michael Bammert, Hardt, DE;
Michael Bammert, Hardt, DE;
Thomson Licensing, Issy-les-Moulineaux, FR;
Abstract
The invention relates to a suspension arm comprising a suspension arm designed as a two-arm lever, said suspension arm mounted to a support such that it can be pivoted between the lever arms about an axis extending perpendicularly to said suspension arm. One of the lever arms supports on its end side an optical head having a focal lens and comprises an elastic region for initiating a motion of the optical head in focusing direction perpendicularly to the pivot plane of the suspension arm. The other lever arm is provided with a coil of a magnetic drive for initiating a swivel motion about the axis. In addition, the suspension arm actuator comprises a magnetic drive for initiating the motion of the optical head in the focusing direction. It solves the problem of designing such a suspension arm actuator such that the sensitivity of said suspension arm actuator is increased. To achieve this, at least one of the magnetic drives is designed with at least one printed coil which is provided with at least one layer increasing the magnetic field strength.