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1. 发明授权

US4658390A Optical focus position control in an optical memory system 失效
标题翻译：光学存储器系统中的光学焦点位置控制
公开(公告)号：US4658390A
公开(公告)日：1987-04-14
申请号：US600374
申请日：1984-04-16
申请人： Yosikazu Fujii , Tetsuya Inui , Toshihisa Deguchi , Hideyoshi Yamaoka
发明人： Yosikazu Fujii , Tetsuya Inui , Toshihisa Deguchi , Hideyoshi Yamaoka
IPC分类号： G11B7/09 , G11B11/105 , G11B7/12
CPC分类号： G11B7/0932 , G11B11/10504 , G11B11/10576 , G11B7/093
摘要： An optical focus position control system in an opto-magnetic disc apparatus includes a tracking control device and a focus control device. The tracking control device includes an intermediate holder, a tracking parallel spring which connects an cylindrical objective lens support to the intermediate holder while ensuring movement of the cylindrical objective lens support in the radial direction of the opto-magnetic disc, and a tracking drive mechanism to shift the cylindrical objective lens support in the radial direction within the intermediate holder. The focus control device includes a stationary holder, a focusing parallel spring which connects the intermediate holder to the stationary holder while ensuring movement of the intermediate holder in the direction of the optical axis of laser beams emitted through the optical focus position control system, and a focusing drive mechanism to shift the intermediate holder in the optical axis direction within the stationary holder.
摘要翻译：光盘装置中的光焦点位置控制系统包括跟踪控制装置和聚焦控制装置。跟踪控制装置包括中间保持器，跟踪平行弹簧，其将圆柱形物镜支架连接到中间保持器，同时确保圆柱形物镜支架沿光盘的径向方向移动;跟踪驱动机构，圆柱形物镜支架在中间支架内径向移动。聚焦控制装置包括固定保持器，聚焦平行弹簧，其将中间保持器连接到静止保持器，同时确保中间保持器沿通过光学焦点位置控制系统发射的激光束的光轴方向的移动，以及聚焦驱动机构在固定保持器内沿光轴方向移动中间保持器。

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