公开(公告)号：US08589966B2

公开(公告)日：2013-11-19

申请号：US13430831

申请日：2012-03-27

申请人： Katsuhiko Kimura ,  Jun Hato ,  Zhiyan Gao

发明人： Katsuhiko Kimura ,  Jun Hato ,  Zhiyan Gao

IPC分类号： G11B7/09

CPC分类号： G11B7/0935 ,  G11B7/0956

摘要： An optical pickup whose thickness is small and power consumption is low is provided, in which these advantages are achieved by increasing the driving force generated in the tilt coil in an objective lens driving apparatus and by making the thickness of the objective lens driving apparatus to be small.In an optical pickup including: an objective lens for condensing light onto an optical disc; a lens holder to which the objective lens has been attached; a focusing coli, a tracking coil, and a tilt coil, which have been attached to the lens holder; and a reflection mirror for reflecting light toward the optical axis of the objective lens, the tilt coil is made to have a shape in which the tilt coil is not brought into contact with the side of the reflection mirror, the side being near to the objective lens.

摘要翻译： 提供了一种厚度小且功耗低的光学拾取器，其中通过增加在物镜驱动装置中的倾斜线圈中产生的驱动力并且通过使物镜驱动装置的厚度为 小。 一种光学拾取器，包括：将光聚光到光盘上的物镜; 已经安装了物镜的透镜架; 聚焦大肠杆菌，跟踪线圈和倾斜线圈，其已经附接到透镜保持器; 以及反射镜，用于朝向物镜的光轴反射光，使倾斜线圈具有其中倾斜线圈不与反射镜侧接触的形状，该侧靠近物镜 镜片。

公开(公告)号：US08037488B2

公开(公告)日：2011-10-11

申请号：US11526649

申请日：2006-09-26

申请人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato

发明人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato

IPC分类号： G11B7/24 ,  G11B23/03 ,  G11B3/00

CPC分类号： G11B7/0935 ,  G11B7/0933

摘要： This invention aims at reducing a rolling moment generated in coils mounted to lens holder side face without losing drive forces in a focusing direction and tracking direction in an objective lens drive of an optical pickup device. By shifting a coil line portion near the objective lens of two coil line portions substantially parallel to the tracking direction of the first coil in a direction departing from a lens optical axis, increase and decrease in drive forces generated in right and left first coils when the lens holder is moved in the tracking direction cancel each other so as to eliminate imbalance between the right and left drive forces.

摘要翻译： 本发明的目的在于减少安装在透镜架侧面的线圈中产生的滚动力矩，而不会在光学拾取装置的物镜驱动器中的聚焦方向和跟踪方向上丧失驱动力。 通过沿着离开透镜光轴的方向基本上平行于第一线圈的跟踪方向的两个线圈线部分的物镜附近的线圈线部分移动，当左右第一线圈产生的驱动力的增加和减小 镜片保持器在跟踪方向上移动彼此抵消，以消除左右驱动力之间的不平衡。

公开(公告)号：US20110247021A1

公开(公告)日：2011-10-06

申请号：US13079872

申请日：2011-04-05

申请人： Souichirou YAMADA ,  Jun Hato ,  Katsuhiko Kimura ,  Yoshitaka Kusano

发明人： Souichirou YAMADA ,  Jun Hato ,  Katsuhiko Kimura ,  Yoshitaka Kusano

IPC分类号： G11B7/135

CPC分类号： G11B7/0935 ,  G11B7/0933

摘要： In an optical pickup for use in an optical disc device, wire rods are wound directly around a lens-coil holder to make tracking coils and focus coils. The lens-coil holder is divided into three holders, one of which holds an optical lens thereon and has on its sides wire-winding protrusions for wiring wire rods therearound to make tracking coils. The remaining holders have focus coils that are wound therearound. Alternatively, the lens-coil holder is divided into two holders, one of which has on its sides wire-winding protrusions for wiring wire rods therearound to make tracking coils. The remaining holder holds an optical lens thereon and has focus coils that are wound therearound. The lens-coil holder has a cavity for letting pass through a laser beam emitted in parallel to an optical disc surface.

摘要翻译： 在用于光盘装置的光学拾取器中，线材直接缠绕在透镜线圈架上以制造跟踪线圈和聚焦线圈。 透镜线圈架被分成三个保持器，其中一个保持在其上的光学透镜，并且在其侧面上具有绕线突起，用于在其周围布线线以形成跟踪线圈。 其余的持有人有卷绕在周围的聚焦线圈。 或者，透镜线圈保持器被分成两个保持器，其中一个保持器在其侧面上具有绕线突起，用于在其周围布线线以制造跟踪线圈。 剩余的保持器在其上保持光学透镜，并且具有卷绕在其上的聚焦线圈。 透镜线圈架具有用于使通过平行于光盘表面发射的激光束的空腔。

公开(公告)号：US20110185375A1

公开(公告)日：2011-07-28

申请号：US13015740

申请日：2011-01-28

申请人： Yoshihiro SATO ,  Jun Hato ,  Katsuhiko Kimura ,  Seiichi Kato ,  Takahiro Yamaguchi

发明人： Yoshihiro SATO ,  Jun Hato ,  Katsuhiko Kimura ,  Seiichi Kato ,  Takahiro Yamaguchi

IPC分类号： G11B7/08

CPC分类号： G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

摘要： High-performance and reliable objective lens driving apparatus and optical pickup wherein the tilt of an objective lens relative to an optical disc is suppressed are provided. The optical pickup is equipped with a semiconductor laser, an electro-optic component, and the objective lens driving apparatus. In this optical pickup, the objective lens driving apparatus is comprised of: a moving part including an objective lens, a holder that holds the objective lens, a focusing coil, and a tracking coil; a holding member for elastic support members that couples together multiple elastic support members providing elastic support on a fixed part and the moving part and is mounted on the moving part; the elastic support members that elastically support the moving part from the fixed part; and the fixed part. The holding member for elastic support members mounted on the moving part and the holder that holds the objective lens are joined together by fitting together a concavity and a convexity.

摘要翻译： 提供了高性能且可靠的物镜驱动装置和光学拾取器，其中抑制了物镜相对于光盘的倾斜。 光学拾取器配备有半导体激光器，电光部件和物镜驱动装置。 在该光学拾取器中，物镜驱动装置包括：包括物镜的移动部件，保持物镜的保持器，聚焦线圈和跟踪线圈; 用于弹性支撑构件的保持构件，其将固定部件和所述移动部件上提供弹性支撑的多个弹性支撑构件联接在一起并安装在所述移动部件上; 所述弹性支撑构件从所述固定部弹性地支撑所述移动部件; 和固定部分。 安装在移动部件上的弹性支撑部件的保持部件和保持物镜的保持器通过将凹凸嵌合而接合在一起。

公开(公告)号：US20100149954A1

公开(公告)日：2010-06-17

申请号：US12632891

申请日：2009-12-08

申请人： Yoshihiro SATO ,  Hidenao Saito ,  Seiichi Kato ,  Jun Hato ,  Ryuichiro Mizuno ,  Katsuhiko Kimura

发明人： Yoshihiro SATO ,  Hidenao Saito ,  Seiichi Kato ,  Jun Hato ,  Ryuichiro Mizuno ,  Katsuhiko Kimura

IPC分类号： G11B7/00

CPC分类号： G11B7/0932 ,  G11B7/0933 ,  G11B7/22

摘要： An objective lens actuator 25, for driving an objective lens 1 for focusing lights upon a recoding surface of an optical disc, comprises a moving part 2, which comprises the objective lens 1 and a coil; a magnet, which is fixed on a yoke and drives the moving part 2; a plural number of elastic support parts, each of which supports the moving part 2 at an end thereof; a first fixing portion 5a and a second fixing portion 5b, which fix other ends of the plural number of elastic support parts 4 and are disposed opposite to each other in a focus direction; and a moving mechanism 6, which is provided on the first and second fixing portion 5a and 5b, so that the first and second fixing portions 5a and 5b can move in the focus direction, relatively, and thereby providing the objective lens actuator 25 enabling to reduce the dynamic relative tilt between the optical disc and the objective lens 1 (i.e., reducing the tilt of the objective lens 1 in the tangential direction when operating), as well as, an optical pickup and an optical disc drive.

摘要翻译： 用于驱动用于将光聚焦在光盘的记录表面上的物镜1的物镜致动器25包括包括物镜1和线圈的移动部分2; 磁体，其固定在磁轭上并驱动移动部件2; 多个弹性支撑部件，每个弹性支撑部件在其一端支撑移动部件2; 第一固定部分5a和第二固定部分5b，其固定多个弹性支撑部分4的另一端，并且在聚焦方向上彼此相对设置; 以及设置在第一和第二固定部分5a和5b上的移动机构6，使得第一和第二固定部分5a和5b可相对于聚焦方向移动，从而使物镜致动器25能够 降低光盘和物镜1之间的动态相对倾斜度（即，当操作时减小物镜1在切线方向上的倾斜度）以及光拾取器和光盘驱动器。

公开(公告)号：US07697381B2

公开(公告)日：2010-04-13

申请号：US11527478

申请日：2006-09-27

申请人： Seiichi Katou ,  Katsuhiko Kimura ,  Ryuichiro Mizuno ,  Hidenao Saito ,  Jun Hato

发明人： Seiichi Katou ,  Katsuhiko Kimura ,  Ryuichiro Mizuno ,  Hidenao Saito ,  Jun Hato

IPC分类号： G11B7/00

CPC分类号： G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

摘要： An object lens drive unit in which an undesired displacement or inclination of an object lens with respect to an optical disc is reduced. The position at which a lens holder for the object lens is supported by a pair of rod-shaped elastic support members in the focusing direction substantially coincides with the center of the tracking coil in the focusing direction.

摘要翻译： 物镜驱动单元，其中物镜相对于光盘的不期望的位移或倾斜减小。 用于物镜的透镜保持器在聚焦方向上被一对棒状弹性支撑构件支撑的位置基本上与聚焦方向上的跟踪线圈的中心重合。

公开(公告)号：US07684290B2

公开(公告)日：2010-03-23

申请号：US11527412

申请日：2006-09-27

申请人： Manabu Ochi ,  Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato

发明人： Manabu Ochi ,  Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/22

摘要： In an object lens actuator, stiffness of a lens holder is improved and the higher order resonance frequency is sufficiently increased. The stiffness of the lens holder is improved by providing a flat plate perpendicular to the focusing direction between the side wall of a lens holding part and the outer sidewall along the tracking direction at approximately the middle of both ends of the lens holder along the focusing direction.

摘要翻译： 在物镜致动器中，透镜架的刚度提高，高次谐振频率充分提高。 通过在透镜保持部的侧壁沿着跟踪方向设置垂直于聚焦方向的平板，沿着聚焦方向在透镜保持器的两端的大致中间处设置透镜保持器的刚度， 。

公开(公告)号：US20070079317A1

公开(公告)日：2007-04-05

申请号：US11526649

申请日：2006-09-26

申请人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato

发明人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/0933

摘要： This invention aims at reducing a rolling moment generated in coils mounted to lens holder side face without losing drive forces in a focusing direction and tracking direction in an objective lens drive means of an optical pickup device. By shifting a coil line portion near the objective lens of two coil line portions substantially parallel to the tracking direction of the first coil in a direction departing from a lens optical axis, increase and decrease in drive forces generated in right and left first coils when the lens holder is moved in the tracking direction cancel each other so as to eliminate imbalance between the right and left drive forces.

摘要翻译： 本发明的目的在于减少安装在透镜架侧面的线圈中产生的滚动力矩，而不会损失光拾取装置的物镜驱动装置中的聚焦方向和跟踪方向的驱动力。 通过沿着离开透镜光轴的方向基本上平行于第一线圈的跟踪方向的两个线圈线部分的物镜附近的线圈线部分移动，当左右第一线圈产生的驱动力的增加和减小 镜片保持器在跟踪方向上移动彼此抵消，以消除左右驱动力之间的不平衡。

公开(公告)号：US08422343B2

公开(公告)日：2013-04-16

申请号：US13079872

申请日：2011-04-05

申请人： Souichirou Yamada ,  Jun Hato ,  Katsuhiko Kimura ,  Yoshitaka Kusano

发明人： Souichirou Yamada ,  Jun Hato ,  Katsuhiko Kimura ,  Yoshitaka Kusano

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/0933

摘要： In an optical pickup for use in an optical disc device, wire rods are wound directly around a lens-coil holder to make tracking coils and focus coils. The lens-coil holder is divided into three holders, one of which holds an optical lens thereon and has on its sides wire-winding protrusions for wiring wire rods therearound to make tracking coils. The remaining holders have focus coils that are wound therearound. Alternatively, the lens-coil holder is divided into two holders, one of which has on its sides wire-winding protrusions for wiring wire rods therearound to make tracking coils. The remaining holder holds an optical lens thereon and has focus coils that are wound therearound. The lens-coil holder has a cavity for letting pass through a laser beam emitted in parallel to an optical disc surface.

摘要翻译： 在用于光盘装置的光学拾取器中，线材直接缠绕在透镜线圈架上以制造跟踪线圈和聚焦线圈。 透镜线圈架被分成三个保持器，其中一个保持在其上的光学透镜，并且在其侧面上具有绕线突起，用于在其周围布线线以形成跟踪线圈。 其余的持有人有卷绕在周围的聚焦线圈。 或者，透镜线圈保持器被分成两个保持器，其中一个保持器在其侧面上具有绕线突起，用于在其周围布线线以制造跟踪线圈。 剩余的保持器在其上保持光学透镜，并且具有卷绕在其上的聚焦线圈。 透镜线圈架具有用于使通过平行于光盘表面发射的激光束的空腔。

公开(公告)号：US20110149713A1

公开(公告)日：2011-06-23

申请号：US12967104

申请日：2010-12-14

申请人： Yoshihiro Sato ,  Hidenao Saito ,  Jun Hato ,  Ryuichiro Mizuno ,  Katsuhiko Kimura ,  Seiichi Kato

发明人： Yoshihiro Sato ,  Hidenao Saito ,  Jun Hato ,  Ryuichiro Mizuno ,  Katsuhiko Kimura ,  Seiichi Kato

IPC分类号： G11B7/135

CPC分类号： G11B7/0933 ,  G11B7/0932 ,  G11B7/0935

摘要： In an optical pickup equipped with a semiconductor laser, electro-optical components such as a lens, and an objective lens drive device, the objective lens drive device includes objective lenses, a holder holding the objective lenses, a focusing coil, and tracking coils. The focusing coil is wound in parallel to the optical surface of the objective lens, and formed in a parallelogram shape having inclined portions provided near the tracking coils. The two tracking coils are placed on diagonal portions of the lens holder.

摘要翻译： 在配备有半导体激光器的光学拾取器，诸如透镜的电光部件和物镜驱动装置中，物镜驱动装置包括物镜，保持物镜的保持器，聚焦线圈和跟踪线圈。 聚焦线圈与物镜的光学表面平行地缠绕，并且形成为具有设置在跟踪线圈附近的倾斜部分的平行四边形。 两个跟踪线圈被放置在透镜架的对角部分上。