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公开(公告)号：USD587274S1
公开(公告)日：2009-02-24
申请号：US29299485
申请日：2007-12-27
申请人： Masahiro Inata , Teruyuki Takizawa , Kozo Ezawa , Hironori Tomita
设计人： Masahiro Inata , Teruyuki Takizawa , Kozo Ezawa , Hironori Tomita
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公开(公告)号：US5999501A
公开(公告)日：1999-12-07
申请号：US4917
申请日：1998-01-09
申请人： Hironori Tomita , Takuya Wada , Satoshi Obase , Tohru Nakamura
发明人： Hironori Tomita , Takuya Wada , Satoshi Obase , Tohru Nakamura
CPC分类号： G11B7/0932 , G11B7/22 , G11B7/0933 , G11B7/0935
摘要： A lens holder 2 holds an objective lens 1. Wires 5a.about.5d movably support the lens holder 2 relative to a stationary member 6 in a tracking direction and in a focus direction. The wires 5a.about.5d are integrally formed with the lens holder 2 and the stationary member 6 and one end and the other end of each of the wires are buried in the lens holder 2 and the stationary member 6. At a time of the integral molding, parts of the buried portions of the wires 5a.about.5d are exposed in notches 2a.about.2d and 6a.about.6d to be in contact with a mold for molding, thereby injection pressure of a molding material is received by the mold. This makes it possible to prevent deformation of the wires 5a.about.5d due to the injection pressure of the molding material, resulting in reducing inclination during actuation and degradation of frequency response characteristic.
摘要翻译： 透镜架2保持物镜1.电线5a差5d在跟踪方向和聚焦方向上相对于固定构件6可移动地支撑透镜架2。 线5a差5d与透镜保持架2和静止构件6一体形成，并且每根电线的一端和另一端被埋在透镜保持架2和静止构件6中。在整体模制时 电线5a差分5d的埋入部分的部分暴露在凹口2a差异2d和6a差异6d中以与用于模制的模具接触，从而模制材料接收模制材料的注射压力。 这使得可以防止由于模制材料的注射压力引起的导线5a差异5d的变形，导致在致动过程中的倾斜和频率响应特性的劣化。
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63.发明授权
公开(公告)号：US5319497A
公开(公告)日：1994-06-07
申请号：US877705
申请日：1992-05-04
CPC分类号： G02B7/005 , G02B7/08 , G11B7/0935
摘要： A lens drive device for an optical information recording and/or reproducing head, which has a cylindrical lens holder for the support of an objective lens assembly and a tubular guide bearing receiving the lens holder for sliding and rotary motions in a direction parallel to and about the longitudinal axis of the lens holder. The device also has magnetic yokes positioned on respective sides of the guide bearing and each having tracking and focusing coils wound therearound. The lens holder has two permanent magnets embedded therein with their respective different poles exposed radially outwardly from a peripheral surface of the lens holder. The guide bearing has two windows defined therein at respective locations corresponding to the respective positions of the permanent magnets in the lens holder. When the focusing coils on the respective yokes are energized, the lens holder can be driven in a focusing direction parallel to the longitudinal axis of the lens holder, while when the tracking coils on the respective yokes are energized, the lens holder can be driven in a tracking direction generally perpendicular to the longitudinal axis of the lens holder.
摘要翻译： 一种用于光学信息记录和/或再现头的透镜驱动装置，其具有用于支撑物镜组件的柱面透镜保持件和容纳透镜保持器的管状引导轴承，用于在平行于和绕其的方向上进行滑动和旋转运动 透镜架的纵向轴线。 该装置还具有位于导向轴承的相应侧面上的磁轭，并且每个磁轭都缠绕在其周围。 透镜架具有嵌入其中的两个永磁体，其各自的不同极从透镜保持器的外周表面径向向外露出。 引导轴承在对应于透镜保持器中的永磁体的相应位置的相应位置处限定有两个窗口。 当各个轭的聚焦线圈通电时，可以在平行于透镜保持器的纵向轴线的聚焦方向上驱动透镜保持器，而当各个轭的跟踪线圈被通电时，透镜保持器可以被驱动 大致垂直于透镜保持器的纵向轴线的跟踪方向。
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公开(公告)号：US5241528A
公开(公告)日：1993-08-31
申请号：US996173
申请日：1992-12-23
CPC分类号： G11B7/0857 , G11B7/093 , G11B7/123
摘要： An optical pickup having an optical disk (22); a laser diode (11); an objective lens for forming a beam spot on the optical disk; an optical element for guiding a beam from the laser diode to the objective lens; a photodetector for converting a reflected beam from the optical disk into an information signal and an error signal; an optical holder to which at least the objective lens is secured; a first circuit board (17) to which at least the laser diode and the photodetector are attached; an optical base to which the first circuit board (17), is secured; at least the laser diode, the optical element and the photodetector being sealed by the optical holder and the optical base so as to form an optical unit; a stationary member; a second circuit board (28) secured to the stationary member; an elastic support member (21) for elastically supporting the optical unit, which is electrically connected to the first and second circuit boards; at least one permanent magnet (23) secured to the optical unit; a first drive member for driving the optical unit in a direction substantially parallel to a rotational axis of the optical disk; and a second drive member for driving the optical unit in a direction substantially perpendicular to the rotational axis of the optical disk.
摘要翻译： 一种具有光盘（22）的光学拾取器。 激光二极管（11）; 用于在光盘上形成束斑的物镜; 用于将来自激光二极管的光束引导到物镜的光学元件; 用于将来自光盘的反射光束转换为信息信号和误差信号的光电检测器; 至少固定有物镜的光学保持器; 至少安装有激光二极管和光电检测器的第一电路板（17）; 固定第一电路板（17）的光学基座; 至少激光二极管，光学元件和光电检测器被光学保持器和光学基座密封以形成光学单元; 固定构件 固定在固定部件上的第二电路板（28） 用于弹性支撑所述光学单元的弹性支撑构件（21），所述弹性支撑构件电连接到所述第一和第二电路板; 固定在所述光学单元上的至少一个永磁体（23） 第一驱动部件，用于沿与光盘的旋转轴线大致平行的方向驱动光学部件; 以及用于在基本上垂直于光盘的旋转轴线的方向上驱动光学单元的第二驱动构件。
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公开(公告)号：US5224083A
公开(公告)日：1993-06-29
申请号：US556000
申请日：1990-07-16
IPC分类号： G11B7/085
CPC分类号： G11B7/085
摘要： From the start of descending of a disk-shaped recording medium in a direction of approaching an objective lens in the optical axis direction by a loading mechanism until it is set at a specified position with respect to a spindle motor, a DC current is supplied to an optical axis direction driving coil through an evading current feeding circuit in a direction for a movable part to depart from the disk-shaped recording medium, and the movable part is located at the remotest position from the disk-shaped recording medium due to an electromagnetic force generated by the DC current flowing in the optical axis direction driving coil and a permanent magnet, so that the disk-shaped recording medium and the objective lens will not collide against each other even if an objective lens with a short working distance is used.
摘要翻译： 从盘状记录介质的下降开始，通过加载机构在光轴方向上接近物镜的方向下降到相对于主轴电机的规定位置为止，直流电流被供给到 光轴方向驱动线圈，其通过避让电流馈送电路沿着可移动部分的方向离开盘状记录介质，并且可移动部分由于电磁场位于盘形记录介质的最远位置 由于在光轴方向驱动线圈上流过的直流电流产生的力和永久磁铁，即使使用了短工作距离的物镜，盘状记录介质和物镜也不会相互碰撞。
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