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:
Jun. 28, 2011
Filed:
Apr. 13, 2006
Seok-jung Kim, Suwon-si, KR;
Moon-whan Lee, Yongin-si, KR;
Do-hoan Nam, Suwon-si, KR;
Jung-gug Pae, Suwon-si, KR;
Soo-han Park, Yongin-si, KR;
Seok-jung Kim, Suwon-si, KR;
Moon-whan Lee, Yongin-si, KR;
Do-hoan Nam, Suwon-si, KR;
Jung-gug Pae, Suwon-si, KR;
Soo-han Park, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An optical pickup actuator independently drivable in focusing, tilting and tracking directions. The optical pickup includes a lens holder movably installed on a base, and mounted with an objective lens for transmitting an incident light to an optical information recording medium; and a magnetic circuit to independently driving the lens holder in the focusing, tilting and tracking directions. The magnetic circuit includes opposing magnets; a focusing coil and tilting coils interposed between the magnets, mounted inside the lens holder, and wound around respective axes parallel to the focusing direction; and a plurality of tracking coils mounted outside the lens holder, interposed between the magnets and wound around respective axes transverse to the focusing direction. The magnetic fields of the magnets are guided by outer yokes partially encompassing the magnets and inner yokes positioned within the focusing coil and the tilting coils.