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. 21, 2006
Filed:
Nov. 08, 2001
Kazutaka Goami, Tokorozawa, JP;
Jun Suzuki, Tokorozawa, JP;
Shigeru Takaya, Tokorozawa, JP;
Shigeyuki Sasanuma, Tokorozawa, JP;
Shinichi Fujinoki, Tokorozawa, JP;
Kazutaka Goami, Tokorozawa, JP;
Jun Suzuki, Tokorozawa, JP;
Shigeru Takaya, Tokorozawa, JP;
Shigeyuki Sasanuma, Tokorozawa, JP;
Shinichi Fujinoki, Tokorozawa, JP;
Pioneer Corporation, Tokyo-to, JP;
Abstract
A lens driving apparatus for driving a movable body in a focus direction and a tracking direction is provided with: a holder, to which a focus coil, a tracking coil and a lens are installed, to thereby constitute the movable body; and a magnetic circuit for applying magnetic fluxes to the focus coil and the tracking coil, to thereby drive the movable body in the focus direction and the tracking direction. The tracking coil includes two sets each having upper and lower two coils arrayed in the focus direction such that the two sets are arrayed in the tracking direction. The magnetic circuit applies the magnetic fluxes opposite to each other along a jitter direction, with respect to the upper two coils and the lower two coils without applying the magnetic fluxes with respect to portions adjacent to the upper and lower two coils.