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    • 1. 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。
    • 2. 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。
    • 6. 发明授权
    • Method of arranging optical pickup system and optical recording and/or reproducing apparatus having the arranged optical pickup system
    • 具有配置光拾取系统的光学拾取系统和光学记录和/或再现装置的布置方法
    • US07092325B2
    • 2006-08-15
    • US10460655
    • 2003-06-13
    • Bong-gi KimChun-seong ParkSoo-han ParkMoon-whan LeeHyo-chan LeeJong-uk KimSeong-su ParkTae-youn HeorDo-hoan Nam
    • Bong-gi KimChun-seong ParkSoo-han ParkMoon-whan LeeHyo-chan LeeJong-uk KimSeong-su ParkTae-youn HeorDo-hoan Nam
    • G11B7/00
    • G11B7/131G11B7/0903G11B7/0906G11B2007/0006
    • A method of arranging an optical pickup system on a deck of an optical recording and/or reproducing apparatus, which enables detection of a tracking error signal using one photodetector based on a three-beam method and by a differential phase detection method. The optical pickup system includes a light source, a diffractive optical element which diffracts a light beam incident from the light source and splits the same into at least three beams, a plate-type beam splitter which changes a propagation path of the light beam, and a photodetector including at least one main photodetector having at least four sections and a plurality of sub-photodetectors. The optical pickup system is constructed so as to have a reflecting mirror redirect the propagation path of the light beam emitted from the light source toward a recording medium. The method of arranging the optical pickup includes, where the propagation path of the light beam transmitted through the plate-type beam splitter to the photodetector is an optical path axis, arranging the optical pickup system so as to have the optical path axis tilted with respect to an axis in a tangential direction of the recording medium and have the photodetector placed away from a rotation center of a motor that rotates the recording medium, and selectively optimizing the arrangement of the photodetector to detect a tracking error signal by the differential phase detection method.
    • 一种在光学记录和/或再现装置的平台上布置光学拾取系统的方法,其能够使用基于三光束方法的一个光电检测器和通过差分相位检测方法检测跟踪误差信号。 光拾取系统包括光源,衍射从光源入射的光束并衍射成至少三个光束的衍射光学元件,改变光束传播路径的板式分束器,以及 光电检测器,其包括至少一个具有至少四个部分的主光电检测器和多个子光电检测器。 光学拾取系统被构造成具有将从光源发射的光束的传播路径重定向到记录介质的反射镜。 布置光学拾取器的方法包括:将透过板式分束器的光束的传播路径传播到光电检测器的方法是将光学拾取系统布置成使光学轴线相对于 到记录介质的切线方向的轴线上,并且将光电检测器放置成远离旋转记录介质的马达的旋转中心,并且选择性地优化光电检测器的布置以通过差分相位检测方法检测跟踪误差信号 。
    • 7. 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。
    • 8. 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。