Title:
【発明の名称】ピックアップアクチュエータ
Document Type and Number:
Japanese Patent JP3059143
Kind Code:
B2
Abstract:
A pickup actuator for an optical disc recording/reproducing device comprising a pair of supporting plates (70,70') disposed on wire springs (44a,44b) adjacently to magnets (30,30'), and a magnetic fluid (80) applied between the pair of supporting plates and both side portions of the magnets, for damping vibration occurring at the lens holder when the lens holder is driven. Accordingly, when there occurs the vibration at the lens holder, the vibration is directly damped by the damping fluid disposed between the magnets and the wire springs which are supporting the lens holder. Thus, an objective lens is allowed to reach the designated position more rapidly. Accordingly, the pickup actuator can be employed into an optical device having the vibration of high intensity, such as in automobiles, or the like.
Inventors:
Song Ming Zhong
Kim Young Chur
Kim Young Chur
Application Number:
JP31950498A
Publication Date:
July 04, 2000
Filing Date:
November 10, 1998
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G11B7/08; G11B7/09; (IPC1-7): G11B7/09
Domestic Patent References:
| JP229937A | ||||
| JP5314511A | ||||
| JP9185830A | ||||
| JP4149025A | ||||
| JP4349224A | ||||
| JP5917042U |
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)