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公开(公告)号：US08213275B2
公开(公告)日：2012-07-03
申请号：US13207518
申请日：2011-08-11
IPC分类号： G11B7/00
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。
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公开(公告)号：US07859774B2
公开(公告)日：2010-12-28
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
CPC分类号： G11B7/0935 , G11B7/0933
摘要： An objective lens actuator which drives 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. The objective lens actuator includes a magnet, a lens holder which is configured to hold the objective lens thereon, and four pieces of tracking coils which are disposed in a line on a side surface of the lens holder for holding the objective lens thereon, facing to the magnet.
摘要翻译： 一种物镜致动器，其将聚焦方向和跟踪方向上的物镜驱动，以便将光聚焦在光盘的记录表面上作为信息的记录介质。 物镜致动器包括：磁体，用于将物镜保持在其上的透镜保持器;以及四个跟踪线圈，其设置在透镜保持器的侧表面上的一条线上，用于将物镜保持在其上，面向 磁铁。
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3.发明授权公开(公告)号：US08023367B2
公开(公告)日：2011-09-20
申请号：US12781880
申请日：2010-05-18
IPC分类号： G11B7/00
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。
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公开(公告)号：US08046785B2
公开(公告)日：2011-10-25
申请号：US12540447
申请日：2009-08-13
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。
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公开(公告)号：US07975275B2
公开(公告)日：2011-07-05
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。
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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， 。
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公开(公告)号：US07643385B2
公开(公告)日：2010-01-05
申请号：US11191940
申请日：2005-07-29
申请人： Manabu Ochi , Katsuhiko Kimura , Masaya Horino , Junichi Senga , Masayoshi Watanabe , Tetsuo Itou
发明人： Manabu Ochi , Katsuhiko Kimura , Masaya Horino , Junichi Senga , Masayoshi Watanabe , Tetsuo Itou
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/0935
摘要： To improve the reliability to an environmental temperature change of an optical pickup, an optical pickup 7 has a semiconductor laser 711 for generating a laser beam. An objective lens drive leads the laser beam to a predetermined position of a disk. The semiconductor laser and objective lens drive are mounted on a pickup hosing 70. The objective lens drive has a movable portion 74 and the movable portion has an objective lens 716 for condensing the laser beam on the recording face of the disk. A fixed portion 72 holds the movable portion through a support member. The fixed portion has a magnetic yoke 75. An extended portion formed by extending a part of the yoke to the fixed portion side and the upside 72b of a cutout formed at the intermediate portion of the fixed portion in the tracking direction are adhered and fixed.
摘要翻译： 为了提高光学拾取器的环境温度变化的可靠性，光学拾取器7具有用于产生激光束的半导体激光器711。 物镜驱动器将激光束引导到盘的预定位置。 半导体激光器和物镜驱动器安装在拾取器连接件70上。物镜驱动器具有可移动部分74，并且可移动部分具有用于将激光束聚集在盘的记录面上的物镜716。 固定部分72通过支撑构件保持可动部分。 固定部分具有磁轭75.通过将磁轭的一部分延伸到沿着跟踪方向的固定部分的中间部分处的固定部分侧和切口的上侧72b形成的延伸部分被固定。
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公开(公告)号：US20060087931A1
公开(公告)日：2006-04-27
申请号：US11191940
申请日：2005-07-29
申请人： Manabu Ochi , Katsuhiko Kimura , Masaya Horino , Junichi Senga , Masayoshi Watanabe , Tetsuo Itou
发明人： Manabu Ochi , Katsuhiko Kimura , Masaya Horino , Junichi Senga , Masayoshi Watanabe , Tetsuo Itou
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/0935
摘要： To improve the reliability to an environmental temperature change of an optical pickup, an optical pickup 7 has a semiconductor laser 711 for generating a laser beam. An objective lens drive leads the laser beam to a predetermined position of a disk. The semiconductor laser and objective lens drive are mounted on a pickup hosing 70. The objective lens drive has a movable portion 74 and the movable portion has an objective lens 716 for condensing the laser beam on the recording face of the disk. A fixed portion 72 holds the movable portion through a support member. The fixed portion has a magnetic yoke 75. An extended portion formed by extending a part of the yoke to the fixed portion side and the upside 72b of a cutout formed at the intermediate portion of the fixed portion in the tracking direction are adhered and fixed.
摘要翻译： 为了提高光学拾取器的环境温度变化的可靠性，光学拾取器7具有用于产生激光束的半导体激光器711。 物镜驱动器将激光束引导到盘的预定位置。 半导体激光器和物镜驱动器安装在拾取器连接件70上。 物镜驱动器具有可移动部分74，并且可移动部分具有用于将激光束聚集在盘的记录面上的物镜716。 固定部分72通过支撑构件保持可动部分。 固定部分具有磁轭75。 通过将磁轭的一部分延伸到固定部分侧而形成的延伸部分和形成在沿跟踪方向的固定部分的中间部分处的切口的上侧72b被粘合并固定。
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公开(公告)号：US06871351B2
公开(公告)日：2005-03-22
申请号：US09928346
申请日：2001-08-14
CPC分类号： G11B7/127 , G11B7/123 , G11B33/1406 , G11B2007/0006
摘要： In a disc driving apparatus, wherein a laser diode and a laser driver circuit board are mounted on a pickup housing in thermal contact therewith and are disposed adjacent to each other, a heat separation member is provided between the laser diode and the laser driver circuit board for effecting thermal separation therebetween, thereby reducing the thermal interference between the heat-generating elements that are adjacent to each other in the optical pickup. This makes it possible to protect the heat-generating elements from being deteriorated, leading to a reduction in the lifetime thereof, as well as, to improve the reliability thereof.
摘要翻译： 在其中激光二极管和激光驱动器电路板安装在与其接触并与之热接触的拾取器壳体并且彼此相邻布置的盘驱动装置中，在激光二极管和激光驱动器电路板之间设置热分离构件 为了实现其间的热分离，从而减小光拾取器中彼此相邻的发热元件之间的热干涉。 这使得可以保护发热元件免于劣化，导致其寿命的降低以及提高其可靠性。
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公开(公告)号：US08589967B2
公开(公告)日：2013-11-19
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。
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