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    Compatible optical pickup
    42.
    发明授权
    Compatible optical pickup 有权
    兼容光学拾音器

    公开(公告)号：US07505390B2

    公开(公告)日：2009-03-17

    申请号：US10786073

    申请日：2004-02-26

    申请人： Tae-youn Heor ,  Soo-han Park

    发明人： Tae-youn Heor ,  Soo-han Park

    IPC分类号： G11B7/12

    CPC分类号： G11B7/13922 ,  G11B7/12 ,  G11B7/1275 ,  G11B7/131 ,  G11B2007/0006

    摘要： A compatible optical pickup includes a light source which emits a first light beam having a wavelength for a first recording medium; a twin light source which emits second and third light beams respectively having wavelengths for second and third recording media; a first objective lens which condenses the first light beam to form a light spot for recording and/or reproduction of the first recording medium; a second objective lens which condenses the second and third light beams to form light spots for recording and/or reproduction of the second and third recording media; an actuator which drives the first and second objective lenses; a first photo-detector which receives the first light beam reflected from a recording medium to detect an information signal and/or an error signal; and a second photo-detector which receives the second and third light beams reflected from a recording medium to detect information signals and/or error signals.

    摘要翻译： 兼容光学拾取器包括发射具有用于第一记录介质的波长的第一光束的光源; 发射分别具有用于第二和第三记录介质的波长的第二和第三光束的双光源; 第一物镜，其聚集第一光束以形成用于记录和/或再现第一记录介质的光点; 第二物镜，其冷凝第二和第三光束，以形成用于记录和/或再现第二和第三记录介质的光点; 驱动第一和第二物镜的致动器; 接收从记录介质反射的第一光束以检测信息信号和/或误差信号的第一光检测器; 以及第二光电检测器，其接收从记录介质反射的第二和第三光束，以检测信息信号和/或误差信号。

    Optical pick-up actuator and method, and reproducing and/or recording apparatus with same
    43.
    发明申请
    Optical pick-up actuator and method, and reproducing and/or recording apparatus with same 失效
    光学拾取致动器和方法，以及具有其的再现和/或记录装置

    公开(公告)号：US20050265141A1

    公开(公告)日：2005-12-01

    申请号：US11137517

    申请日：2005-05-26

    申请人： Jung-gug Pae ,  Seok-jung Kim ,  Soo-han Park

    发明人： Jung-gug Pae ,  Seok-jung Kim ,  Soo-han Park

    IPC分类号： G11B7/085 ,  G11B7/00 ,  G11B7/09 ,  G11B7/095

    CPC分类号： G11B7/0956 ,  G11B7/0933 ,  G11B7/0935 ,  G11B2007/0006

    摘要： 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.

    摘要翻译： 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。

    Optical pickup actuator and optical recording and/or reproducing apparatus having the same
    44.
    发明授权
    Optical pickup actuator and optical recording and/or reproducing apparatus having the same 失效
    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

    公开(公告)号：US07969828B2

    公开(公告)日：2011-06-28

    申请号：US11402990

    申请日：2006-04-13

    申请人： Seok-jung Kim ,  Moon-whan Lee ,  Do-hoan Nam ,  Jung-gug Pae ,  Soo-han Park

    发明人： Seok-jung Kim ,  Moon-whan Lee ,  Do-hoan Nam ,  Jung-gug Pae ,  Soo-han Park

    IPC分类号： G11B7/00 ,  G11B5/58

    CPC分类号： G11B7/0933 ,  G11B7/0935 ,  G11B7/0956 ,  G11B2007/0006

    摘要： 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.

    摘要翻译： 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。

    Photo diode ic
    46.
    发明申请
    Photo diode ic 有权
    光电二极管ic

    公开(公告)号：US20060209647A1

    公开(公告)日：2006-09-21

    申请号：US10565195

    申请日：2003-10-17

    申请人： Soo-han Park ,  Jong-uk Kim

    发明人： Soo-han Park ,  Jong-uk Kim

    IPC分类号： G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/0903 ,  G11B7/0906 ,  G11B7/0909 ,  G11B7/0943 ,  G11B7/123 ,  G11B7/1275 ,  G11B2007/0006

    摘要： A photodetector detecting reflected light components from an optical medium, the photodetector including a first detector divided into eight sections detecting the reflected light components and converting the light components into electrical signals, a first calculating portion calculating a first tracking error signal from the electrical signals by a differential push-pull method, a second calculating portion calculating a first focusing error signal by an astigmatism method and calculating a second tracking error signal by a differential phase detection method from the electrical signals converted by the first detector; a second detector divided into four sections detecting the reflected light components reflected by the optical recording medium to convert the light components into electrical signals; and a third calculating portion calculating a second focusing error signal by the astigmatism method and calculating a third tracking error signal by the differential phase detection method from the electrical signals converted by the second detector.

    摘要翻译： 一种检测来自光学介质的反射光分量的光检测器，该光检测器包括：第一检测器，被分为检测反射光分量的八个部分，并将光分量转换为电信号;第一计算部分，根据电信号计算第一跟踪误差信号， 差分推挽方法，第二计算部分，通过像散方法计算第一聚焦误差信号，并通过差分相位检测方法从由第一检测器转换的电信号计算第二跟踪误差信号; 第二检测器，被分为检测由光记录介质反射的反射光分量的四个部分，以将光分量转换成电信号; 以及第三计算部分，通过像散法计算第二聚焦误差信号，并通过差分相位检测方法从由第二检测器转换的电信号计算第三跟踪误差信号。

    Optical pickup for an optical recording and/or reproducing apparatus
    47.
    发明申请
    Optical pickup for an optical recording and/or reproducing apparatus 失效
    用于光学记录和/或再现装置的光学拾取器

    公开(公告)号：US20060203691A1

    公开(公告)日：2006-09-14

    申请号：US11368612

    申请日：2006-03-07

    申请人： Seok-jung Kim ,  Jung-gug Pae ,  Soo-han Park ,  Moon-whan Lee

    发明人： Seok-jung Kim ,  Jung-gug Pae ,  Soo-han Park ,  Moon-whan Lee

    IPC分类号： G11B7/135

    CPC分类号： G11B7/08511 ,  G11B7/0927 ,  G11B7/0933 ,  G11B7/0956 ,  G11B2007/0006

    摘要： An optical pickup of an optical recording and reproducing apparatus includes a plurality of object lenses used to record and or reproduce information from/to various types of optical recording media of different recording densities; an actuator driving the object lenses in a focusing direction and supporting the object lenses to have rolling during movement in the focusing direction; and a pickup base installed to movably go and return in a radial direction of an optical recording medium, and the actuator forming a predetermined angle with respect to the pickup base.

    摘要翻译： 光学记录和再现装置的光学拾取器包括用于从不同记录密度的各种类型的光学记录介质记录和/或再现信息的多个物镜; 在聚焦方向上驱动物镜的致动器，并且在聚焦方向上移动期间支撑物镜进行滚动; 以及安装成可移动地沿光学记录介质的径向移动并返回的拾取器基座，并且致动器相对于拾取器基座形成预定角度。

    Objective lens for optical pickup and optical pickup apparatus having the same
    48.
    发明授权
    Objective lens for optical pickup and optical pickup apparatus having the same 有权
    用于光学拾取器和具有该物镜的光学拾取装置的物镜

    公开(公告)号：US08897106B2

    公开(公告)日：2014-11-25

    申请号：US13599473

    申请日：2012-08-30

    申请人： Seong-su Park ,  Soo-han Park ,  Woo-chang Chun

    发明人： Seong-su Park ,  Soo-han Park ,  Woo-chang Chun

    IPC分类号： G11B7/135 ,  G11B7/1374 ,  G02B5/18 ,  G02B13/00 ,  G11B7/1381 ,  G11B7/1353 ,  G11B7/00

    CPC分类号： G11B7/1381 ,  G02B5/1814 ,  G02B13/005 ,  G02B13/0055 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

    摘要： An objective lens for optical pickup and an optical pickup apparatus having the same are provided. The objective lens for optical pickup includes a light source side lens surface and a disc side lens surface. The light source side lens surface and the disc side lens surface each include an effective region disposed at a central region of the objective lens and a non-effective region disposed outside the effective region. An optical path changing element, disposed in the non-effective region of at least one of the light source side lens surface and the disc side lens surface, changes a path of light incident thereon.

    摘要翻译： 提供了一种用于光学拾取器的物镜和具有该物镜的光学拾取装置。 用于光学拾取器的物镜包括光源侧透镜表面和盘侧透镜表面。 光源侧透镜表面和盘侧透镜表面各自包括设置在物镜的中心区域的有效区域和设置在有效区域外的非有效区域。 设置在光源侧透镜表面和盘侧透镜表面中的至少一个的非有效区域中的光路改变元件改变入射到其上的光的路径。

    Photo diode ic
    49.
    发明授权
    Photo diode ic 有权
    光电二极管ic

    公开(公告)号：US08159908B2

    公开(公告)日：2012-04-17

    申请号：US10565195

    申请日：2003-10-17

    申请人： Soo-han Park ,  Jong-uk Kim

    发明人： Soo-han Park ,  Jong-uk Kim

    IPC分类号： G11B7/095

    CPC分类号： G11B7/131 ,  G11B7/0903 ,  G11B7/0906 ,  G11B7/0909 ,  G11B7/0943 ,  G11B7/123 ,  G11B7/1275 ,  G11B2007/0006

    摘要： A photodetector detecting reflected light components from an optical medium, the photodetector including a first detector divided into eight sections detecting the reflected light components and converting the light components into electrical signals, a first calculating portion calculating a first tracking error signal from the electrical signals by a differential push-pull method, a second calculating portion calculating a first focusing error signal by an astigmatism method and calculating a second tracking error signal by a differential phase detection method from the electrical signals converted by the first detector; a second detector divided into four sections detecting the reflected light components reflected by the optical recording medium to convert the light components into electrical signals; and a third calculating portion calculating a second focusing error signal by the astigmatism method and calculating a third tracking error signal by the differential phase detection method from the electrical signals converted by the second detector.

    摘要翻译： 一种检测来自光学介质的反射光分量的光检测器，该光检测器包括：第一检测器，被分为检测反射光分量的八个部分，并将光分量转换为电信号;第一计算部分，根据电信号计算第一跟踪误差信号， 差分推挽方法，第二计算部分，通过像散方法计算第一聚焦误差信号，并通过差分相位检测方法从由第一检测器转换的电信号计算第二跟踪误差信号; 第二检测器，被分为检测由光记录介质反射的反射光分量的四个部分，以将光分量转换成电信号; 以及第三计算部分，通过像散法计算第二聚焦误差信号，并通过差分相位检测方法从由第二检测器转换的电信号计算第三跟踪误差信号。