公开(公告)号：US20130086600A1

公开(公告)日：2013-04-04

申请号：US13435618

申请日：2012-03-30

申请人： Manabu OCHI ,  Katsuhiko KIMURA ,  Hidenao SAITO

发明人： Manabu OCHI ,  Katsuhiko KIMURA ,  Hidenao SAITO

IPC分类号： G11B7/09

CPC分类号： G11B7/0932 ,  G11B7/0933

摘要： An optical pickup includes an object lens; a moving part including the object lens and coils; rod-shaped support members disposed in a focusing direction, one end of each of the support members being attached to side surfaces of the moving part in a tracking direction; a fixing part for fixing the other end of each of the support members; a yoke including magnets; and gel holding parts, each of the gel holding parts including walls on both sides of the support members in the tracking direction, and the support members being disposed on both sides of the moving part in the tracking direction. Each of the gel holding parts includes an opening at one end on an optical disc side in the focusing direction and includes a cutout in the wall farther from the object lens in the tracking direction, the cutout extending from an edge of the opening.

摘要翻译： 光拾取器包括物镜; 包括物镜和线圈的移动部件; 沿聚焦方向设置的棒状支撑构件，每个支撑构件的一端沿着跟踪方向附接到移动部件的侧表面; 用于固定每个支撑构件的另一端的固定部分; 包括磁体的磁轭; 和凝胶保持部，每个凝胶保持部分包括在跟踪方向上的支撑部件的两侧的壁，并且支撑部件沿跟踪方向设置在移动部件的两侧。 每个凝胶保持部分包括在聚焦方向上的光盘侧的一端的开口，并且在远离物镜的跟踪方向上包括距离物体更远的切口，该切口从开口的边缘延伸。

公开(公告)号：US20090103421A1

公开(公告)日：2009-04-23

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： G11B7/135

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分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：US20100302928A1

公开(公告)日：2010-12-02

申请号：US12781880

申请日：2010-05-18

申请人： Manabu OCHI ,  Katsuhiko KIMURA ,  Takahiro YAMAGUCHI

发明人： Manabu OCHI ,  Katsuhiko KIMURA ,  Takahiro YAMAGUCHI

IPC分类号： G11B7/135 ,  G02B7/02

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

摘要： An object lens actuator can improve workability and operate with high reliability by prevention of damage to the object lens actuator and a disc and sticking of a moving part caused by an excessive movement of the moving part. In a disc drive employing the object lens actuation, stable writing/reading operation is implemented by always keeping a focal point of an object lens at a predetermined track of a recording surface of the disc even when being under the action of external perturbations such as a vertical deviation or a radial deviation of the disc, resulting in improved reliability. A solder-flux adhesion prevention gadget is provided between a substrate and a stopper receiving face, which may include a stepped stage, a partition protruding from the surface of the lens holder, or alternatively a combination of them arranged in order in the range.

摘要翻译： 物镜致动器可以通过防止由于移动部件的过度运动而导致的物镜致动器和盘的损坏以及移动部件的粘附而提高可操作性并且以高的可靠性进行操作。 在采用物镜致动的盘式驱动器中，即使在外部扰动的作用下，即使在诸如光盘的外部扰动的作用下，也始终将物镜的焦点保持在盘的记录表面的预定轨迹，来实现稳定的写入/读取操作 垂直偏差或盘的径向偏差，从而提高了可靠性。 在基板和止挡件接收面之间设置焊料助焊剂附着防止小工具，其可以包括阶梯台，从透镜保持器的表面突出的隔板，或者可选地，它们的组合依次布置在该范围内。

公开(公告)号：US20120127845A1

公开(公告)日：2012-05-24

申请号：US13218786

申请日：2011-08-26

申请人： Katsuhiko KIMURA ,  Jun HATO ,  Zhi Yan GAO

发明人： Katsuhiko KIMURA ,  Jun HATO ,  Zhi Yan GAO

IPC分类号： G11B7/135

CPC分类号： G11B7/0935 ,  G11B7/0932 ,  G11B7/1374

摘要： An optical pickup includes an objective lens, a lens holder which holds the objective lens, a focusing coil attached to the lens holder having the winding axis directed at the optical axis of the objective lens, and a magnet provided opposite the side surface of the lens holder. A protruding portion is attached to the side surface of the lens holder at a side apart from the objective lens with respect to the optical axis direction of the objective lens farther than the focusing coil.

摘要翻译： 光学拾取器包括物镜，保持物镜的透镜保持器，附接到具有指向物镜的光轴的卷绕轴的透镜保持器的聚焦线圈和与透镜的侧表面相对设置的磁体 持有人 相对于比聚焦线圈更远的物镜的光轴方向，突出部分在透镜保持器的与物镜相离的一侧附着。

公开(公告)号：US20120314313A1

公开(公告)日：2012-12-13

申请号：US13430816

申请日：2012-03-27

申请人： Atsushi KAZAMA ,  Katsuhiko KIMURA ,  Takahiro YAMAGUCHI ,  Souichirou YAMADA

发明人： Atsushi KAZAMA ,  Katsuhiko KIMURA ,  Takahiro YAMAGUCHI ,  Souichirou YAMADA

IPC分类号： G02B7/04

CPC分类号： G11B7/0932

摘要： In the object lens drive unit including a lens holder with an object lens attached to, a plurality of driving coils attached to the lens holder, connection substrates attached to both sides of the lens holder, and a plurality of suspension wires with end parts thereof connected to the connection substrates for operatively supporting the lens holder, a plurality of sets of wire connection electrodes for connecting the suspension wires and coil connection electrodes electrically connected to the wire connection electrodes for connecting terminal wires of the coils are arranged in line in an optic axis direction of the object lens and the wire connection electrodes and the coil connection electrodes are formed in a symmetric shape to a central axis parallel to the optic axis direction on the connection substrates.

摘要翻译： 在包括安装有物镜的透镜保持器的物镜驱动单元中，安装在透镜保持器上的多个驱动线圈，连接到透镜保持器两侧的连接基板和多个悬挂线，其端部连接 到用于可操作地支撑透镜保持器的连接基板，用于连接悬挂线的多组线连接电极和电连接到用于连接线圈的端子线的线连接电极的线圈连接电极在光轴 物镜和线连接电极和线圈连接电极的方向形成为与连接基板上的光轴方向平行的中心轴对称的形状。

公开(公告)号：US20100067333A1

公开(公告)日：2010-03-18

申请号：US12542070

申请日：2009-08-17

申请人： Seiichi KATO ,  Katsuhiko KIMURA ,  Takahiro YAMAGUCHI ,  Yoshiro KONISHI

发明人： Seiichi KATO ,  Katsuhiko KIMURA ,  Takahiro YAMAGUCHI ,  Yoshiro KONISHI

IPC分类号： G11B11/00

CPC分类号： H02K41/0356 ,  G02B7/08 ,  G11B7/0933 ,  G11B7/0956

摘要： An objective lens actuator, being suitable for a thin-sized optical pickup and a thin-sized optical disc apparatus, comprises: an objective lens for focusing a light upon a recording surface of an optical disc; and a driving means including a focusing coil, tracking coils, and a magnetic circuit, for operating the objective lens into a focusing direction of approaching/receding to/from the optical disc, and into a tracking direction of a radius of the optical disc, wherein the magnetic circuit has two (2) pieces of magnets putting the objective lens therebetween, and one of the magnets is short of length in the focusing direction and is long in length in the tracking direction, comparing to the other magnet, thereby brining an unnecessary moment, which is applied upon a moving part including the objective lens therein, to be small, and suppressing inclination or tile and vibration of the objective lens, so as to deal with high-density and high-speed recording/reproducing of information.

摘要翻译： 适用于薄型光学拾取器和薄型光盘装置的物镜致动器包括：用于将光聚焦在光盘的记录表面上的物镜; 以及包括聚焦线圈，跟踪线圈和磁路的驱动装置，用于将物镜操作到接近/退出到光盘的聚焦方向，并且进入光盘的半径的跟踪方向， 其中磁路具有将物镜放置在其间的两（2）个磁体，并且其中一个磁体在聚焦方向上短于长度，并且在跟踪方向上的长度比其他磁体长，从而使得 施加在包括物镜的移动部件上的不必要的力矩小，并且抑制物镜的倾斜或瓦片和振动，以便处理高密度和高速度的信息记录/再现。

公开(公告)号：US20120297403A1

公开(公告)日：2012-11-22

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。