公开(公告)号：US20080172685A1

公开(公告)日：2008-07-17

申请号：US12014123

申请日：2008-01-15

申请人： Manabu OCHI ,  Katsuhiko Kimura ,  Ryuichiro Mizuno

发明人： Manabu OCHI ,  Katsuhiko Kimura ,  Ryuichiro Mizuno

IPC分类号： G11B7/09

CPC分类号： G11B7/0935

摘要： The present invention has an object to provide an object lens actuator that reduces the amplitude of vibration of an object lens related to a torsional vibration of a lens holder and to enable a disc drive using the same to record information on a disc at high speeds. The above object has been achieved by placing the thickest one of the four walls, which are in an envelope of two opening portions provided in the lens holder and which are perpendicular to a flat plate between the two opening portions, in a position which is opposite to the object lens with respect to the center line between a first support member and a second support member which resiliently support the lens holder therebetween and which is opposite to the object lens with respect to the flat plate.

摘要翻译： 本发明的目的是提供一种减少与透镜架的扭转振动相关的物镜的振动幅度的物镜致动器，并且能够使用该物镜驱动器以高速度将信息记录在盘上。 上述目的已经通过将四个壁中最厚的一个放置在设置在透镜保持器中的两个开口部分的外壳中并且垂直于两个开口部分之间的平板的位置处于相反的位置 相对于第一支撑构件和第二支撑构件之间的中心线相对于物镜相对于物镜相对于物镜弹性地支撑透镜保持器的物镜。

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：US20120051197A1

公开(公告)日：2012-03-01

申请号：US13207518

申请日：2011-08-11

申请人： Manabu OCHI ,  Katsuhiko Kimura ,  Takahiro Yamaguchi ,  Souichirou Yamada

发明人： Manabu OCHI ,  Katsuhiko Kimura ,  Takahiro Yamaguchi ,  Souichirou Yamada

IPC分类号： G11B7/00 ,  G02B7/04

CPC分类号： G11B7/1374 ,  G11B7/0935 ,  G11B7/22

摘要： The present invention provides an object lens actuator in which a tilt of an object lens due to a change of an ambient temperature is inhibited even when a metal member is attached to a resin based securing part. It is desirable to improve quality of writing and playing in a disc drive using the object lens actuator. This is achieved by coupling a metal member having a flat portion and bent portions to a securing part near top ends of the bent portions. The flat portion has a normal in the focusing direction. The bent portions extend in the focusing direction from the respective ends of the flat portion in the tracking direction. The securing part has an opening therethrough in the focusing direction, and in the opening, the metal member and the securing part may be coupled between each outermost two support members in the focusing direction.

摘要翻译： 本发明提供一种物镜致动器，其中即使当金属构件附接到基于树脂的固定部分时，由于环境温度的变化而导致的物镜的倾斜被抑制。 期望使用物镜致动器提高在盘驱动器中的写入和播放质量。 这通过将具有平坦部分的金属构件和弯曲部分耦合到靠近弯曲部分的顶端附近的固定部分来实现。 平坦部分在聚焦方向上具有法线。 弯曲部沿着跟踪方向从平坦部分的相应端在聚焦方向上延伸。 固定部分在聚焦方向上具有穿过其的开口，并且在开口中，金属构件和固定部分可以在聚焦方向上联接在每个最外面的两个支撑构件之间。

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：US20100067353A1

公开(公告)日：2010-03-18

申请号：US12540447

申请日：2009-08-13

申请人： Manabu OCHI ,  Katsuhiko Kimura ,  Takahiro Yamaguchi

发明人： Manabu OCHI ,  Katsuhiko Kimura ,  Takahiro Yamaguchi

IPC分类号： G11B7/00

CPC分类号： H02K41/0356 ,  G02B7/08 ,  G11B7/0933 ,  G11B7/0956 ,  H02K33/18

摘要： An objective lens actuator comprises a lens holder for attaching an objective lens thereon, a piece of focusing coil, being wound along side surface of the lens holder around the objective lens, and three magnets, being disposed opposing to two surfaces each having a normal line perpendicular to both a focusing direction and a tracking direction, among four side surfaces of the lens holder, wherein the three magnets are aligned, continuously, along the tracking direction, differing a polarity thereof from one another, and width of the magnets on both outsides is wider than width of the magnet inside, or alternately, one magnet, being disposed opposing to two surfaces each having a normal line perpendicular to both a focusing direction and a tracking direction, among four side surfaces of the lens holder, wherein the magnet is magnetized into three poles along the tracking direction, and among the three poles, width of the poles on both outsides is wider than width of the pole inside.

摘要翻译： 物镜致动器包括用于在其上附接物镜的透镜保持器，围绕物镜的透镜保持器的侧表面缠绕的聚焦线圈，以及三个磁体，其设置成与具有法线的两个表面相对 垂直于聚焦方向和跟踪方向的透镜保持器的四个侧表面之中，其中三个磁体沿着跟踪方向连续地对准，其极性彼此不同，并且两个磁体的外侧的宽度 在透镜保持器的四个侧表面之中，比在磁体内部宽的宽度，或者可选地，一个磁体设置成相对于在垂直于聚焦方向和跟踪方向的法线的两个表面相对的磁体，其中磁体是 沿着跟踪方向被磁化成三极，而在三极中，两个外侧的极的宽度比内侧的极的宽度宽。

公开(公告)号：US20090116129A1

公开(公告)日：2009-05-07

申请号：US12265748

申请日：2008-11-06

申请人： Manabu OCHI ,  Katsuhiko Kimura ,  Souichirou Yamada ,  Tetsuo Itou

发明人： Manabu OCHI ,  Katsuhiko Kimura ,  Souichirou Yamada ,  Tetsuo Itou

IPC分类号： G02B7/04

CPC分类号： G11B7/0935 ,  G11B7/0933

摘要： An objective lens actuator, having a small tilt of an objective lens, for driving the objective lens in a focusing direction and a tracking direction, so as to focus lights on a recording surface of an optical disc, as a recording medium of information, comprises therein: a magnet; a lens holder, which is configured to hold the lens thereon; and four (4) pieces of tracking coils are disposed in a line on a side surface of the lens holder for holding the objective lens thereon, facing to the magnet. And also, an objective lens actuator, having a small tilt of an objective lens, for driving an objective lens in a focusing direction and a tracking direction, so as to focus lights on a recording surface of an optical disc, as a recording medium of information, comprises therein: magnets, which are disposed on two (2) surfaces putting the objective lens therebetween; a lens holder, which is configured to hold the lens thereon; and four (4) pieces of tracking coils are disposed in a line on each of two (2) side surfaces of the lens holder for holding the objective lens thereon, facing to the magnets.

摘要翻译： 具有物镜的小倾斜的物镜致动器作为信息的记录介质，用于在聚焦方向和跟踪方向上驱动物镜，以将光聚焦在光盘的记录表面上，包括 其中：磁铁; 配置为将透镜保持在其上的透镜保持器; 并且四个（4）跟踪线圈被布置在透镜保持器的侧表面上，用于将物镜保持在其上面对磁体。 而且，具有物镜倾斜小的物镜致动器，用于在聚焦方向和跟踪方向上驱动物镜，以便将光聚焦在光盘的记录表面上作为记录介质 信息包括：磁体，其设置在两个（2）表面上，将物镜放置在其间; 配置为将透镜保持在其上的透镜保持器; 并且在透镜保持器的两（2）侧表面中的每一个侧面上设置四（4）个跟踪线圈，用于将物镜保持在其上面对磁体。

公开(公告)号：US20130010582A1

公开(公告)日：2013-01-10

申请号：US13434982

申请日：2012-03-30

申请人： Manabu OCHI ,  Junichi SENGA ,  Takehiro HAYAMA

发明人： Manabu OCHI ,  Junichi SENGA ,  Takehiro HAYAMA

IPC分类号： G11B7/00

CPC分类号： G11B7/22

摘要： An optical pickup having a case made of a resin material reinforced with glass fiber, inorganic filler or the like with polyphenylene sulfide as a base material, and a metal plate formed of a material having a linear expansion coefficient within a range of a linear expansion coefficient of the case in a direction between bearings when a fiber orientation of the case is along the direction between the bearings or random. The metal plate has two rising members bended to the case side at both ends in the direction between the bearings. Two walls of the outer hull of an opening of the case at both ends in the direction between the bearings and the two rising members of the metal plate are alternately opposed, and the opposed walls of the case and the rising members of the metal plate are fixed using adhesives.

摘要翻译： 具有由以聚苯硫醚为基材的玻璃纤维，无机填料等增强的树脂材料制成的壳体的光学拾取器以及线性膨胀系数在线性膨胀系数范围内的材料形成的金属板 当壳体的纤维取向沿着轴承或随机方向时，在轴承之间的方向上。 金属板具有两个上升构件，两个升降构件在轴承之间的两端弯曲到壳体侧。 壳体开口外壳的两个外壳在轴承和金属板的两个升降构件之间的方向上交替相对，壳体的相对壁和金属板的上升构件是 使用粘合剂固定。

公开(公告)号：US20080080358A1

公开(公告)日：2008-04-03

申请号：US11668086

申请日：2007-01-29

申请人： Manabu OCHI ,  Fumihito Ichikawa ,  Hiroyasu Yoshida ,  Mitsuo Satake

发明人： Manabu OCHI ,  Fumihito Ichikawa ,  Hiroyasu Yoshida ,  Mitsuo Satake

IPC分类号： G11B7/00

CPC分类号： G11B7/126 ,  G11B7/127

摘要： The present invention provides an optical head for realizing the stable operation by controlling the temperature of the semiconductor laser to a low level by reducing the heat transfer rate from a laser driver IC to a housing in the vicinity of a semiconductor laser, and an optical disc drive using the same. It provides an optical head having a semiconductor laser and a photo detector arranged on one side with respect to a straight line through the center of an object lens of an object lens actuator and in parallel to the axis contacted with bearings, and a laser driver IC arranged on the other side with respect to the straight line. Thereby, the distance from the laser driver IC to the semiconductor laser can sufficiently be ensured so that the heat transfer rate from the laser driver IC to the housing can be reduced.

摘要翻译： 本发明提供一种光头，用于通过将半导体激光器附近的激光驱动IC向外壳的传热速度降低，将半导体激光器的温度控制在低水平，实现稳定的动作， 驱动器使用相同。 它提供了一种具有半导体激光器和光电检测器的光学头，其相对于通过物镜致动器的物镜的中心并且与轴承接​​触的轴线相对于直线布置在一侧，激光驱动器IC 相对于直线布置在另一侧。 由此，能够充分确保从激光驱动IC到半导体激光器的距离，能够降低从激光驱动IC到壳体的传热速度。