发明授权
US4766583A Optical pickup device with objective lens movable in two directions
失效
光学拾取装置,物镜可在两个方向上移动
- 专利标题: Optical pickup device with objective lens movable in two directions
- 专利标题(中): 光学拾取装置,物镜可在两个方向上移动
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申请号: US896922申请日: 1986-08-15
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公开(公告)号: US4766583A公开(公告)日: 1988-08-23
- 发明人: Hiroshi Oinoue , Yoshimasa Goda
- 申请人: Hiroshi Oinoue , Yoshimasa Goda
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-180145 19850816
- 主分类号: G02B7/00
- IPC分类号: G02B7/00 ; G02B26/10 ; G11B7/09 ; G11B7/08 ; G02B7/02
摘要:
An optical pickup device comprising an objective lens having an optic axis for focusing a light beam emitted from a light source on an optical recording medium. The objective lens is carried on a support member which is coupled with a base through a coupling unit. The coupling unit has a first rotation axis parallel to the optic axis for permitting rotation of the support member about the first rotation axis in a tracking direction perpendicular to the optic axis and a second rotation axis perpendicular to the optic axis for permitting rotation of the support member about the second rotation axis in a focusing direction parallel to the optic axis. The support member has a center of gravity positioned substantially on the first rotation axis. A light beam reflected from the optical recording medium is sensed for exerting a force on the support member to move the objective lens in the focusing and/or tracking directions so as to adjust the optic axis to a desired position.
公开/授权文献
- USD259781S Boat anchor 公开/授权日:1981-07-07
信息查询
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |