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1. 发明授权

US5519677A Biaxial actuator for driving an objective lens in both focusing and tracking directions 失效
标题翻译：用于在聚焦和跟踪方向上驱动物镜的双轴致动器
公开(公告)号：US5519677A
公开(公告)日：1996-05-21
申请号：US214697
申请日：1994-03-18
申请人： Keiichi Shibata , Takatoshi Hirata , Masashi Matsumura
发明人： Keiichi Shibata , Takatoshi Hirata , Masashi Matsumura
IPC分类号： G11B7/09 , G11B7/095
CPC分类号： G11B7/0932
摘要： An objective lens driving biaxial actuator for driving an objective lens in both a focusing direction and a tracking direction with respect to a recording medium. The biaxial actuator comprises: a movable portion for holding the objective lens; an elastic member having its one end attached to the movable portion for movably supporting the movable portion; a stationary portion fixing the other end of the elastic member; and a balancer disposed at the side of the stationary portion with respect to the objective lens and carried on the movable portion at such a distance that its clearance from the stationary portion may restrict the deformation of the elastic member within an elastic limit. A hinge is interposed between the elastic member and the movable portion for moving the objective lens in the tracking direction.
摘要翻译：一种用于驱动双轴致动器的物镜，用于相对于记录介质在聚焦方向和跟踪方向上驱动物镜。双轴致动器包括：用于保持物镜的可动部分; 弹性构件，其一端附接到所述可动部，用于可移动地支撑所述可动部; 固定所述弹性构件的另一端的固定部; 以及平衡器，其相对于所述物镜设置在所述固定部分的侧面，并以与所述静止部分的间隙限制所述弹性构件在弹性极限内的变形的距离承载在所述可动部分上。铰链位于弹性构件和可动部分之间，用于在跟踪方向上移动物镜。

2. 发明授权

US5313334A Objective lens moving actuator 失效
标题翻译：物镜移动执行器
公开(公告)号：US5313334A
公开(公告)日：1994-05-17
申请号：US919015
申请日：1992-07-23
申请人： Takamichi Tomiyama , Takatoshi Hirata
发明人： Takamichi Tomiyama , Takatoshi Hirata
IPC分类号： G11B7/09 , G02B7/02
CPC分类号： G11B7/0933 , G11B7/0932
摘要： An objective lens moving actuator comprises a movable member for supporting an objective lens, a resilient supporting member for resiliently supporting the movable member together with the objective lens such that the movable member having the objective lens can be moved in a first direction parallel to the optical axis of the objective lens and in a second direction perpendicular to the optical axis of the objective lens, a fixing member to which the base end of the resilient supporting member is fixed, an electromagnetic drive device for moving the resilient supporting member in the first and second directions together with the objective lens, and an adjusting member for rotating the resilient supporting member such that the optical axis of the objective lens has a predetermined skew angle.
摘要翻译：物镜移动致动器包括用于支撑物镜的可动构件，用于与物镜一起弹性地支撑可动构件的弹性支撑构件，使得具有物镜的可动构件能够在平行于光学器件的第一方向上移动并且在垂直于物镜的光轴的第二方向上固定弹性支撑构件的基端的固定构件，用于使弹性支撑构件在第一和第二位置移动的电磁驱动装置，以及与物镜一起的第二方向;以及调节构件，用于旋转弹性支撑构件，使得物镜的光轴具有预定的倾斜角。

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