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. 16, 2010
Filed:
Jan. 25, 2007
Sang-yol Yoon, Seoul, KR;
Dae-jong Jang, Anyang-si, KR;
Young-bin Lee, Suwon-si, KR;
Yong-jae Lee, Suwon-si, KR;
Byung-ryul Ryoo, Suwon-si, KR;
Young-won Lee, Suwon-si, KR;
Sang-yol Yoon, Seoul, KR;
Dae-jong Jang, Anyang-si, KR;
Young-bin Lee, Suwon-si, KR;
Yong-jae Lee, Suwon-si, KR;
Byung-ryul Ryoo, Suwon-si, KR;
Young-won Lee, Suwon-si, KR;
Abstract
An optical pickup actuator which includes a base, a blade having an objective lens mounted thereon, a plurality of suspensions supporting the blade to be movable with respect to the base and forming an electroconductive path, and a magnetic circuit driving the blade according to a driving signal applied through the respective suspensions. The magnetic circuit includes a magnet fixed to the base, and a fine pattern coil installed on the blade at a position facing the magnet and having a track pattern coil, a focus pattern coil, and a tilt pattern coil independently driven by current applied through the suspensions and providing driving forces in a track direction, a focus direction, and a tilt direction of the blade.