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    • 2. 发明授权
    • Optical pickup actuator, method of manufacturing the optical pickup actuator, and optical pickup employing the optical pickup actuator, and optical recording and/or reproducing apparatus employing the optical pickup
    • 光拾取器致动器,制造光学拾取器致动器的方法和采用光学拾取器致动器的光学拾取器以及采用光学拾取器的光学记录和/或再现装置
    • US07577968B2
    • 2009-08-18
    • US11154808
    • 2005-06-17
    • Seok-jung KimJung-gug Pae
    • Seok-jung KimJung-gug Pae
    • G11B7/08
    • G11B7/0935G11B7/08582G11B7/0927G11B7/0956
    • An optical pickup actuator including a blade supported by a plurality of suspensions to be movable with respect to a base and a magnetic circuit to drive a movable part including the blade, a method of manufacturing the optical pickup actuator, an optical pickup employing the optical pickup actuator, and an optical recording and/or reproducing apparatus employing the optical pickup. The movable part includes a weight center adjusting element of the movable part in order to induce a radial rolling operation in a direction in which an optical axis of an objective lens is perpendicular to an information storage surface of an information storage medium, during a focusing operation in a high frequency band above the first resonant frequency of the optical pickup actuator. The method of manufacturing the optical pickup actuator includes checking the direction of radial rolling for each focusing driving frequency and adjusting the center of weight of the movable part when the direction of radial rolling is not the desired direction, and the center of weight of the movable part is adjusted until radial rolling is induced in a direction in which an optical axis of an objective lens is perpendicular to an information storage surface of an information storage medium.
    • 一种光学拾取器致动器,包括由相对于基座可移动的多个悬架支撑的刀片和用于驱动包括刀片的可动部件的磁路,制造光学拾取器致动器的方法,采用光学拾取器的光学拾取器 致动器以及采用光学拾取器的光学记录和/或再现装置。 可移动部件包括可动部件的重量中心调节元件,以便在聚焦操作期间引起在物镜的光轴垂直于信息存储介质的信息存储表面的方向上的径向滚动操作 在高于光学拾取器致动器的第一谐振频率的高频带。 制造光学拾取器致动器的方法包括检查每个聚焦驱动频率的径向滚动方向,并且当径向滚动的方向不是期望的方向时调整可动部分的重量的中心,并且可移动的重心的中心 调节零件,直到在物镜的光轴垂直于信息存储介质的信息存储表面的方向上感应出径向滚动。
    • 3. 发明授权
    • Optical pick-up actuator and method, and reproducing and/or recording apparatus with same
    • 光学拾取致动器和方法,以及具有其的再现和/或记录装置
    • US07561497B2
    • 2009-07-14
    • US11137517
    • 2005-05-26
    • Jung-gug PaeSeok-jung KimSoo-han Park
    • Jung-gug PaeSeok-jung KimSoo-han Park
    • G11B7/00
    • G11B7/0956G11B7/0933G11B7/0935G11B2007/0006
    • An actuator for an optical pick-up, including: a holder fixed to a base; a bobbin capable of accommodating a plurality of objective lenses for recording and/or reproducing information onto and/or from optical discs with different recording densities; a suspension for connecting the bobbin and the holder, and supporting the bobbin to be movable; and a magnetic circuit for driving the bobbin in focusing, tilting, and tracking directions, wherein the magnetic circuit includes a plurality of focusing/tilting coils installed in the bobbin to be in correspondence to the plurality of lenses, and driving the bobbin in at least one of focusing and tilting directions; a plurality of magnets having the focusing/tilting coils therebetween, in which same polarities of the magnets make one pair; and tracking coils supported by the bobbin, and generating a driving force to drive the bobbin in the tracking direction.
    • 一种用于光学拾取器的致动器,包括:固定到基座的保持器; 能够容纳用于在具有不同记录密度的光盘上记录和/或再现信息的多个物镜的筒管; 用于连接线轴和保持架的悬架,并支撑线轴可移动; 以及用于在聚焦,倾斜和跟踪方向上驱动线轴的磁路,其中所述磁路包括安装在所述筒管中以与所述多个透镜相对应的多个聚焦/倾斜线圈,并且至少驱动所述线轴 聚焦和倾斜方向之一; 多个磁体,其间具有聚焦/倾斜线圈,其中磁体的相同极性成为一对; 以及由线轴支撑的跟踪线圈,并产生驱动线轴沿跟踪方向的驱动力。
    • 5. 发明申请
    • Optical pickup actuator and optical recording and/or reproducing apparatus having the same
    • 光拾取器致动器及具有该拾取器执行器的光学记录和/或再现装置
    • US20060233067A1
    • 2006-10-19
    • US11402990
    • 2006-04-13
    • Seok-jung KimMoon-whan LeeDo-hoan NamJung-gug PaeSoo-han Park
    • Seok-jung KimMoon-whan LeeDo-hoan NamJung-gug PaeSoo-han Park
    • G11B7/00
    • G11B7/0933G11B7/0935G11B7/0956G11B2007/0006
    • An optical pickup actuator independently drivable in focusing, tilting and tracking directions. The optical pickup includes a lens holder movably installed on a base, and mounted with an objective lens for transmitting an incident light to an optical information recording medium; and a magnetic circuit to independently driving the lens holder in the focusing, tilting and tracking directions. The magnetic circuit includes opposing magnets; a focusing coil and tilting coils interposed between the magnets, mounted inside the lens holder, and wound around respective axes parallel to the focusing direction; and a plurality of tracking coils mounted outside the lens holder, interposed between the magnets and wound around respective axes transverse to the focusing direction. The magnetic fields of the magnets are guided by outer yokes partially encompassing the magnets and inner yokes positioned within the focusing coil and the tilting coils.
    • 光学拾音器执行器可以在聚焦,倾斜和跟踪方向上独立驱动。 光学拾取器包括可移动地安装在基座上的透镜保持器,并且安装有用于将入射光传输到光学信息记录介质的物镜; 以及用于在聚焦,倾斜和跟踪方向独立地驱动透镜架的磁路。 磁路包括相对的磁体; 聚焦线圈和夹在所述磁体之间的倾斜线圈,安装在所述透镜保持器内部,并围绕平行于所述聚焦方向的相应轴线缠绕; 以及多个跟踪线圈,其安装在透镜保持器的外部,插入在磁体之间并围绕横向于聚焦方向的各个轴线缠绕。 磁体的磁场由位于聚焦线圈和倾斜线圈内部的磁体和内轭铁的部分包围的外轭引导。
    • 6. 发明授权
    • Optical pickup actuator and optical recording and/or reproducing apparatus having the same
    • 光拾取器致动器及具有该拾取器执行器的光学记录和/或再现装置
    • US07969828B2
    • 2011-06-28
    • US11402990
    • 2006-04-13
    • Seok-jung KimMoon-whan LeeDo-hoan NamJung-gug PaeSoo-han Park
    • Seok-jung KimMoon-whan LeeDo-hoan NamJung-gug PaeSoo-han Park
    • G11B7/00G11B5/58
    • G11B7/0933G11B7/0935G11B7/0956G11B2007/0006
    • An optical pickup actuator independently drivable in focusing, tilting and tracking directions. The optical pickup includes a lens holder movably installed on a base, and mounted with an objective lens for transmitting an incident light to an optical information recording medium; and a magnetic circuit to independently driving the lens holder in the focusing, tilting and tracking directions. The magnetic circuit includes opposing magnets; a focusing coil and tilting coils interposed between the magnets, mounted inside the lens holder, and wound around respective axes parallel to the focusing direction; and a plurality of tracking coils mounted outside the lens holder, interposed between the magnets and wound around respective axes transverse to the focusing direction. The magnetic fields of the magnets are guided by outer yokes partially encompassing the magnets and inner yokes positioned within the focusing coil and the tilting coils.
    • 光学拾音器执行器可以在聚焦,倾斜和跟踪方向上独立驱动。 光拾取器包括可移动地安装在基座上并安装有用于将入射光传输到光学信息记录介质的物镜的透镜保持器; 以及用于在聚焦,倾斜和跟踪方向独立地驱动透镜架的磁路。 磁路包括相对的磁体; 聚焦线圈和夹在所述磁体之间的倾斜线圈,安装在所述透镜保持器内部,并围绕平行于所述聚焦方向的相应轴线缠绕; 以及多个跟踪线圈,其安装在透镜保持器的外部,插入在磁体之间并围绕横向于聚焦方向的各个轴线缠绕。 磁体的磁场由位于聚焦线圈和倾斜线圈内部的磁体和内轭铁的部分包围的外轭引导。
    • 9. 发明授权
    • Optical pickup apparatus and controlling method thereof
    • 光拾取装置及其控制方法
    • US07706218B2
    • 2010-04-27
    • US11401871
    • 2006-04-12
    • Jung-gug PaeBong-gi KimHyo-chan LeeSoo-han ParkSeok-jung Kim
    • Jung-gug PaeBong-gi KimHyo-chan LeeSoo-han ParkSeok-jung Kim
    • G11B7/00
    • G11B7/08511G11B2007/0006
    • An optical pickup apparatus includes an objective lens that focuses light on an optical recording medium; an actuator that drives the objective lens in a direction of an optical axis of the objective lens toward or away from an optical recording medium in response to an input voltage applied to the actuator; an actuator driven distance sensor that senses a distance the actuator moves according to time or the input voltage applied to the actuator; an input voltage calculator that calculates an input voltage to be applied to the actuator that compensates for a hysteresis phenomenon that occurs during movement of the actuator based on the distance sensed by the actuator driven distance sensor; and a controller that controls operation of the actuator according to the input voltage calculated by the input voltage calculator.
    • 光学拾取装置包括将光聚焦在光学记录介质上的物镜; 响应于施加到致动器的输入电压,将物镜朝向或远离光学记录介质的物镜的光轴的方向驱动物镜的致动器; 致动器驱动的距离传感器,其感测致动器根据时间或施加到致动器的输入电压移动的距离; 输入电压计算器,其计算施加到所述致动器的输入电压,其基于由所述致动器驱动距离传感器感测到的距离来补偿所述致动器的运动期间发生的滞后现象; 以及根据由输入电压计算器计算的输入电压来控制致动器的操作的控制器。