发明授权
US07076791B2 Optical pickup and optical disc apparatus provided with the same
有权
具有该光拾取器和光盘装置的光拾取器和光盘装置
- 专利标题: Optical pickup and optical disc apparatus provided with the same
- 专利标题(中): 具有该光拾取器和光盘装置的光拾取器和光盘装置
-
申请号: US10105699申请日: 2002-03-20
-
公开(公告)号: US07076791B2公开(公告)日: 2006-07-11
- 发明人: Hiromitsu Mori , Kyuichiro Nagai , Atsushi Inoue , Toshimasa Kamisada , Ryuichiro Mizuno
- 申请人: Hiromitsu Mori , Kyuichiro Nagai , Atsushi Inoue , Toshimasa Kamisada , Ryuichiro Mizuno
- 代理机构: Townsend and Townsend and Crew LLP
- 优先权: JP2001-388729 20011221
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
The invention provides an optical disc apparatus which restricts an operation sound generated from an objective lens driving portion of an optical pickup and has a reduce sound, in an optical disc apparatus, in particular, an optical disc apparatus installing a microphone for recording an external voice therein. Coils (107, 108), a magnet (109) and opposing surfaces of a yoke (110) are respectively arranged at substantially point symmetrical positions with respect to an optical axis (111) of an objective lens (103) in a state in which no electric current is applied, the yoke (110) and a unit base (117) are connected via a spring member (118), and the unit base (117) is mounted to a casing (120). In this case, the spring member (118) is connected at a position (121) forward apart from the objective lens (103) with respect to the yoke (110), and is formed so as to have at least a deformation freedom in a direction of the optical axis of the objective lens (103). The casing (120) is made in a closed structure surrounding a space in which the unit base (117), a lens holder (106), the yoke (110) and the magnet (109) are arranged, except a surface opposing to a disc-like recording medium (104).
公开/授权文献
信息查询
IPC分类: