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：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：US08743668B2

公开(公告)日：2014-06-03

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： G11B7/00

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：US08407730B2

公开(公告)日：2013-03-26

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：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。

公开(公告)号：US20100067354A1

公开(公告)日：2010-03-18

申请号：US12542078

申请日：2009-08-17

申请人： Tatsuya Yamasaki ,  Yoshihiro Sato ,  Seiichi Kato ,  Katsuhiko Kimura ,  Takahiro Yamaguchi ,  Yoshiro Konishi ,  Hidenao Saito

发明人： Tatsuya Yamasaki ,  Yoshihiro Sato ,  Seiichi Kato ,  Katsuhiko Kimura ,  Takahiro Yamaguchi ,  Yoshiro Konishi ,  Hidenao Saito

IPC分类号： G11B7/135

CPC分类号： G11B7/08582

摘要： An optical pickup, mounting a lens actuator 101 thereon, the lens actuator comprises: a lens 1 having an optical axis in direction in parallel with an optical disc; a holder 2, which holds the lens thereon; a first guide shaft 3 holding the holder, so as to regulate the holder to change a position thereof, into an inner surface direction of a surface having the optical axis of the lens as a normal line vector thereof; a second guide shaft 4, which regulates the holder to change the position thereof, into a normal line vector of an optical disc; and a reed screw, which moves the holder into direction of the optical axis of the lens, wherein a distance between the optical axis of the lens and the optical disc, a distance between a central axis of the first guide shaft and the optical disc, and a distance between a central axis of the second guide shaft and the optical disc are lager than a distance between a central axis of the reed screw and the optical disc.

摘要翻译： 在其上安装透镜致动器101的光学拾取器，透镜致动器包括：具有与光盘平行的方向的光轴的透镜1; 在其上保持透镜的保持器2; 保持保持器的第一引导轴3，以将保持器的位置调整为具有透镜的光轴的表面的内表面方向作为其法线矢量; 第二引导轴4，其将保持器改变其位置，调节成光盘的法线矢量; 以及将保持器移动到透镜的光轴的方向的簧片螺钉，其中透镜的光轴与光盘之间的距离，第一引导轴的中心轴线与光盘之间的距离， 并且第二引导轴的中心轴线与光盘之间的距离大于簧片螺钉的中心轴线与光盘之间的距离。

公开(公告)号：US08341657B2

公开(公告)日：2012-12-25

申请号：US12542078

申请日：2009-08-17

申请人： Tatsuya Yamasaki ,  Yoshihiro Sato ,  Seiichi Kato ,  Katsuhiko Kimura ,  Takahiro Yamaguchi ,  Yoshiro Konishi ,  Hidenao Saito

发明人： Tatsuya Yamasaki ,  Yoshihiro Sato ,  Seiichi Kato ,  Katsuhiko Kimura ,  Takahiro Yamaguchi ,  Yoshiro Konishi ,  Hidenao Saito

IPC分类号： G11B7/135

CPC分类号： G11B7/08582

摘要： An optical pickup, mounting a lens actuator 101 thereon, the lens actuator comprises: a lens 1 having an optical axis in direction in parallel with an optical disc; a holder 2, which holds the lens thereon; a first guide shaft 3 holding the holder, so as to regulate the holder to change a position thereof, into an inner surface direction of a surface having the optical axis of the lens as a normal line vector thereof; a second guide shaft 4, which regulates the holder to change the position thereof, into a normal line vector of an optical disc; and a reed screw, which moves the holder into direction of the optical axis of the lens, wherein a distance between the optical axis of the lens and the optical disc, a distance between a central axis of the first guide shaft and the optical disc, and a distance between a central axis of the second guide shaft and the optical disc are lager than a distance between a central axis of the reed screw and the optical disc.

摘要翻译： 在其上安装透镜致动器101的光学拾取器，透镜致动器包括：具有与光盘平行的方向的光轴的透镜1; 在其上保持透镜的保持器2; 保持保持器的第一引导轴3，以将保持器的位置调整为具有透镜的光轴的表面的内表面方向作为其法线矢量; 第二引导轴4，其将保持器改变其位置，调节成光盘的法线矢量; 以及将保持器移动到透镜的光轴的方向的簧片螺钉，其中透镜的光轴与光盘之间的距离，第一引导轴的中心轴线与光盘之间的距离， 并且第二引导轴的中心轴线与光盘之间的距离大于簧片螺钉的中心轴线与光盘之间的距离。

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。