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公开(公告)号：US4482988A
公开(公告)日：1984-11-13
申请号：US579800
申请日：1984-02-17
摘要： In an optical disc player or other apparatus in which a light beam is directed through an objective lens to be focused thereby at a record medium surface for optically reading information recorded in a track on such surface; the objective lens has its central axis offset in respect to the longitudinal axis of a cylindrical body forming part of a movable assembly and through which the light beam passes axially, and such cylindrical body is both angularly displaceable about its longitudinal axis and axially displaceable relative to a guide bearing forming part of a fixed assembly to correct for tracking errors and for focusing errors, respectively. The fixed assembly further includes a magnetic circuit generating a magnetic field which intersects coils included in the movable assembly to receive focusing error and tracking error signals, respectively.
摘要翻译： 在光盘播放器或其他装置中，其中光束被引导通过物镜以被聚焦在记录介质表面上，用于光学地读取记录在该表面上的轨道中的信息; 物镜相对于形成可移动组件的一部分的圆柱形主体的纵向轴线具有其中心轴偏移，并且光束通过该中心轴线轴向偏移，并且该圆柱形主体可以围绕其纵向轴线成角度地移位并且可相对于 形成固定组件的一部分的导向轴承，以分别校正跟踪误差和聚焦误差。 固定组件还包括产生与包括在可移动组件中的线圈相交的磁场的磁路，以分别接收聚焦误差和跟踪误差信号。
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公开(公告)号：US4269486A
公开(公告)日：1981-05-26
申请号：US109072
申请日：1980-01-02
申请人： Kenji Shintani
发明人： Kenji Shintani
CPC分类号： G02B7/1821 , G11B7/0925
摘要： A multi-axis movable mirror device includes a mirror, a flexible coupling to couple the mirror to a fixed member to allow the mirror to freely rotate about a plurality of axes, a bobbin integrally secured to the mirror, a number of coils wound on the bobbin at different locations and a number of sets of magnets opposing the coils wound on the bobbin. The mirror is rotated about selected axes by supplying control currents to selected coils.
摘要翻译： 多轴可移动镜装置包括镜子，柔性联接器，用于将镜子连接到固定构件以允许镜子围绕多个轴线自由旋转;一体地固定到镜子的筒管，缠绕在镜子上的多个线圈 在不同位置的筒管和与缠绕在筒管上的线圈相对的多组磁体。 通过向所选线圈提供控制电流，镜子围绕所选轴旋转。
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