| US 7,577,968 B2 | ||
| Optical pickup actuator, method of manufacturing the optical pickup actuator, and optical pickup employing the optical pickup actuator, and optical recording and/or reproducing apparatus employing the optical pickup | ||
| Seok-jung Kim, Suwon-si (Korea, Republic of); and Jung-gug Pae, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Jun. 17, 2005, as Appl. No. 11/154,808. | ||
| Claims priority of application No. 10-2004-0046652 (KR), filed on Jun. 22, 2004. | ||
| Prior Publication US 2005/0281147 A1, Dec. 22, 2005 | ||
| Int. Cl. G11B 7/08 (2006.01) | ||
| U.S. Cl. 720—681 | 57 Claims |
| 1. An optical pickup actuator comprising:
a blade supported by a plurality of suspensions to be movable with respect to a base and on which an objective lens is mounted;
and
a magnetic circuit to drive a movable part, the movable part including the blade,
wherein the movable part comprises a weight center adjusting element to induce radial rolling in a direction in which an optical
axis of the objective lens is perpendicular to an information storage surface of an information storage medium during a focusing
operation in a high frequency band above the first resonant frequency of the optical pickup actuator.
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