公开(公告)号：US08166495B2

公开(公告)日：2012-04-24

申请号：US11668098

申请日：2007-01-29

申请人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato ,  Takahiro Yamaguchi

发明人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato ,  Takahiro Yamaguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/0933 ,  G11B7/0935

摘要： An optical pickup in which the position of a magnet can be adjusted with respect to a yoke is provided. The optical pickup has an objective lens, a lens holder that holds the objective lens, a magnet disposed opposite to a side surface of the lens holder, and a yoke to the inside of which the magnet is attached. The yoke has an opening at least near the bottom of the magnet, through which the magnet can be visually observed from the outside of the yoke, the bottom being on the side of the yoke that is farther from an optical disc and the top being on the side of the yoke that is closer to the optical disc along the optical axis of the objective lens.

摘要翻译： 提供了一种可以相对于磁轭调节磁体位置的光学拾取器。 光学拾取器具有物镜，保持物镜的透镜保持器，与透镜保持器的侧表面相对设置的磁体以及磁铁安装在其内部的磁轭。 轭具有至少接近磁体底部的开口，通过该开口可以从轭的外部目视观察磁体，底部位于离光盘更远的磁轭侧，顶部位于 轭的侧面沿着物镜的光轴更靠近光盘。

公开(公告)号：US20070274168A1

公开(公告)日：2007-11-29

申请号：US11668098

申请日：2007-01-29

申请人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato ,  Takahiro Yamaguchi

发明人： Katsuhiko Kimura ,  Hidenao Saito ,  Jun Hato ,  Takahiro Yamaguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/0933 ,  G11B7/0935

摘要： An optical pickup in which the position of a magnet can be adjusted with respect to a yoke is provided. The optical pickup has an objective lens, a lens holder that holds the objective lens, a magnet disposed opposite to a side surface of the lens holder, and a yoke to the inside of which the magnet is attached. The yoke has an opening at least near the bottom of the magnet, through which the magnet can be visually observed from the outside of the yoke, the bottom being on the side of the yoke that is farther from an optical disc and the top being on the side of the yoke that is closer to the optical disc along the optical axis of the objective lens.

摘要翻译： 提供了一种可以相对于磁轭调节磁体位置的光学拾取器。 光学拾取器具有物镜，保持物镜的透镜保持器，与透镜保持器的侧表面相对设置的磁体以及磁铁安装在其内部的磁轭。 轭具有至少接近磁体底部的开口，通过该开口可以从轭的外部目视观察磁体，底部位于离光盘更远的磁轭侧，顶部位于 轭的侧面沿着物镜的光轴更靠近光盘。

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：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：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。

公开(公告)号：US20070189129A1

公开(公告)日：2007-08-16

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：US08000183B2

公开(公告)日：2011-08-16

申请号：US12255077

申请日：2008-10-21

申请人： Yoshihiro Satou ,  Hidenao Saito ,  Jun Hato ,  Ryuichiro Mizuno ,  Katsuhiko Kimura

发明人： Yoshihiro Satou ,  Hidenao Saito ,  Jun Hato ,  Ryuichiro Mizuno ,  Katsuhiko Kimura

IPC分类号： G11B7/00

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

摘要： The present invention provides an object lens actuator, an optical pickup, and an optical disk drive, which can increase the size of the object lens actuator driving a lens holder in the tangential tilt direction, and drive and control the lens holder with a small amount of drive current.An object lens actuator comprising a lens holder having an object lens and a first coil; a first magnet fixed to a yoke; plural elastic support parts for supporting said lens holder with a first fulcrum; a moving part for supporting said elastic support parts with a second fulcrum different from said first fulcrum, and a fixed part having a moving mechanism for moving said moving part, wherein said first coil and said first magnet constitute a first magnetic circuit, said first magnetic circuit makes said lens holder movable in a focusing direction, a tracking direction and a radial tilt direction of an optical disk for read/write, and said moving mechanism makes said moving part movable.

摘要翻译： 本发明提供一种物镜驱动器，光拾取器和光盘驱动器，其可以增加沿切线倾斜方向驱动透镜保持器的物镜致动器的尺寸，并且以少量驱动和控制透镜保持器 的驱动电流。 一种物镜致动器，包括具有物镜和第一线圈的透镜保持器; 固定到轭的第一磁体; 用于以第一支点支撑所述透镜支架的多个弹性支撑部件; 用于以不同于所述第一支点的第二支点支撑所述弹性支撑部分的移动部件和具有用于移动所述移动部件的移动机构的固定部分，其中所述第一线圈和所述第一磁体构成第一磁路，所述第一磁体 电路使得所述透镜架能够在用于读/写的光盘的聚焦方向，跟踪方向和径向倾斜方向上移动，并且所述移动机构使得所述移动部件可移动。