公开(公告)号：US20060198256A1

公开(公告)日：2006-09-07

申请号：US10553797

申请日：2004-12-02

申请人： Takuya Wada ,  Tohru Nakamura ,  Hideki Aikoh ,  Takao Hayashi ,  Osamu Mizuno

发明人： Takuya Wada ,  Tohru Nakamura ,  Hideki Aikoh ,  Takao Hayashi ,  Osamu Mizuno

IPC分类号： G11B7/00

CPC分类号： G11B7/0946 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/121 ,  G11B2007/0006

摘要： A collision preventive member that limits displacements of an objective lens in a focusing direction is provided. The collision preventive member includes a first limiting portion that limits displacements of the objective lens present within a first region while allowing a movable range of the objective lens in the focusing direction to overlap a deflection range of the optical disc within the first region, and a second limiting portion that limits displacements of the objective lens present within a second region in establishing a relation such that the movable range of the objective lens in the focusing direction does not overlap the deflection range of the optical disc within the second region. A controller that controls the objective lens in such a manner that the objective lens is located within the second region in a non-focusing state of the objective lens is provided. It is thus possible to prevent a collision between an optical disc and the objective lens under the environment where vibrations are applied.

摘要翻译： 提供了一种限制物镜在聚焦方向上的位移的防撞构件。 防撞构件包括第一限制部分，其限制存在于第一区域内的物镜的位移，同时允许物镜在聚焦方向上的可移动范围与第一区域内的光盘的偏转范围重叠， 第二限制部分限制存在于第二区域内的物镜的位移，以建立关系，使得物镜在聚焦方向上的可移动范围不与第二区域内的光盘的偏转范围重叠。 提供了一种以物镜位于物镜的非聚焦状态的第二区域内的方式控制物镜的控制器。 因此，可以在施加振动的环境下防止光盘与物镜之间的碰撞。

公开(公告)号：US07200849B2

公开(公告)日：2007-04-03

申请号：US10761617

申请日：2004-01-21

申请人： Hideki Aikoh ,  Tohru Nakamura ,  Osamu Mizuno

发明人： Hideki Aikoh ,  Tohru Nakamura ,  Osamu Mizuno

IPC分类号： G11B7/08

CPC分类号： G11B7/0935 ,  G11B7/0933 ,  G11B7/0956

摘要： An optical head is driven in a tracking direction with respect to a rotating optical disc. The optical head includes a light source, an optical block, a condenser shifter, and a rotating mechanism. The light source is used to read and write data from/on the optical disc. The optical block supports the light source. The condenser shifter includes a condenser, a movable body, a base, a focus direction drive mechanism and a tracking direction drive mechanism. The condenser focuses light, emitted from the light source, toward the optical disc. The movable body supports the condenser. The base supports the movable body elastically such that the movable body is able to shift in a focus direction and in the tracking direction. The focus and tracking direction drive mechanisms are provided to shift the movable body in the focus and tracking directions, respectively. The rotating mechanism rotates the condenser shifter around a predetermined axis with respect to the optical block on at least one of a first plane, which is parallel to the tracking direction and perpendicular to the optical disc, and a second plane, which is perpendicular to the tracking direction.

摘要翻译： 光头相对于旋转光盘在跟踪方向上被驱动。 光头包括光源，光学块，冷凝器移位器和旋转机构。 光源用于从/从光盘读取和写入数据。 光学块支撑光源。 冷凝器移动器包括冷凝器，可移动体，基座，聚焦方向驱动机构和跟踪方向驱动机构。 聚光器将从光源发射的光朝向光盘聚焦。 可移动体支撑冷凝器。 基座弹性地支撑可移动体，使得可移动体能够在聚焦方向和跟踪方向上移动。 提供聚焦和跟踪方向驱动机构以分别在焦点和跟踪方向上移动可移动体。 所述旋转机构在平行于跟踪方向并垂直于光盘的第一平面和垂直于光盘的第二平面中的至少一个上相对于光学块围绕预定轴旋转冷凝器移位器，第二平面垂直于光盘 跟踪方向。

公开(公告)号：US20070064551A1

公开(公告)日：2007-03-22

申请号：US10579776

申请日：2004-12-02

申请人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Takao Hayashi ,  Takuya Wada

发明人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Takao Hayashi ,  Takuya Wada

IPC分类号： G11B7/00

CPC分类号： G11B7/085 ,  G11B7/08576

摘要： An optical disc apparatus includes a withdrawal means for moving an objective lens (32) to a position distant from an optical disc (1) during an inactive duration of intermittent recording or reproducing operation. A means for regulating or fixing the objective lens (32) at the position distant from the optical disc (1) is further provided. Thus, even in a noncontrolled state during the inactive duration, it is possible to prevent collision of the objective lens (32) with the optical disc (1). As a result, both power saving and safety of the apparatus can be attained.

摘要翻译： 一种光盘装置，包括一个取出装置，用于在间歇的记录或再现操作的非活动时间期间将物镜（32）移动到远离光盘（1）的位置。 还提供用于在离开光盘（1）的位置处调节或固定物镜（32）的装置。 因此，即使在非活动持续时间的非受控状态下，也可以防止物镜（32）与光盘（1）的碰撞。 结果，可以实现装置的节电和安全。

公开(公告)号：US07013473B2

公开(公告)日：2006-03-14

申请号：US10764680

申请日：2004-01-26

申请人： Osamu Mizuno ,  Yutaka Murakami ,  Hisayuki Enshu ,  Hideki Aikoh ,  Tohru Nakamura

发明人： Osamu Mizuno ,  Yutaka Murakami ,  Hisayuki Enshu ,  Hideki Aikoh ,  Tohru Nakamura

IPC分类号： G11B17/32

CPC分类号： G11B5/127 ,  G11B5/40 ,  G11B5/4806 ,  G11B11/10534 ,  G11B11/1058 ,  G11B21/21 ,  G11B2005/0005 ,  G11B2005/0021

摘要： In high-speed high-density recording, heat generation becomes a problem as high-frequency modulation and a strong magnetic field of a magnetic head are realized.A transducer supporting structure is provided including a thermally coupling contact portion extended from a part of a suspension and brought into contact with a magnetic core. Heat generated in a coil is dissipated to the suspension via the magnetic core and the thermally coupling contact portion.

摘要翻译： 在高速高密度记录中，由于实现高频调制和磁头的强磁场，所以发热成为问题。 提供了一种换能器支撑结构，其包括从一部分悬架延伸并与磁芯接触的热耦合接触部分。 在线圈中产生的热量经由磁芯和热耦合接触部分散发到悬架。

公开(公告)号：US06731587B1

公开(公告)日：2004-05-04

申请号：US09979242

申请日：2002-02-22

申请人： Osamu Mizuno ,  Yutaka Murakami ,  Hisayuki Enshu ,  Hideki Aikoh ,  Tohru Nakamura

发明人： Osamu Mizuno ,  Yutaka Murakami ,  Hisayuki Enshu ,  Hideki Aikoh ,  Tohru Nakamura

IPC分类号： G11B1732

CPC分类号： G11B5/127 ,  G11B5/40 ,  G11B5/4806 ,  G11B11/10534 ,  G11B11/1058 ,  G11B21/21 ,  G11B2005/0005 ,  G11B2005/0021

摘要： In high-speed high-density recording, heat generation becomes a problem as high-frequency modulation and strong magnetic field of a magnetic head are realized. A thermally coupling contact portion is extended from a part of a suspension and is brought into contact with a magnetic core, by which heat generated in a coil is dissipated to the suspension via the magnetic core and the thermally coupling contact portion.

摘要翻译： 在高速高密度记录中，由于实现高频调制和磁头的强磁场，所以发热成为问题。热耦合接触部分从一部分悬架延伸并与 磁芯，通过该磁芯，线圈中产生的热量经由磁芯和热耦合接触部分散发到悬架。

公开(公告)号：US5646934A

公开(公告)日：1997-07-08

申请号：US454509

申请日：1995-05-30

申请人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Hironori Tomita ,  Masanari Mohri

发明人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Hironori Tomita ,  Masanari Mohri

IPC分类号： G11B17/028 ,  G11B17/04 ,  G11B7/00

CPC分类号： G11B17/057 ,  G11B17/0282 ,  G11B17/0284 ,  G11B17/0565

摘要： In a clamp mechanism, an adapter, and an optical disc apparatus for compatibly playing back an MD and a CD having different centering hole diameters and reference heights, a first clamp mechanism has a taper cone section for both the MD and CD, while a second clamp mechanism has an MD turntable and a CD clamper which is driven in contact with the MD turntable while clamping the CD. The adapter is a disc which has a hole having the same inner diameter as that of the centering hole of the MD and a thickness of 0.8 mm, the adapter to be attached to the CD. A first optical disc apparatus has an MD spindle motor and a CD spindle motor, and an optical system including an objective lens is arranged on a Straight line that connects both the spindle motors. A second optical disc apparatus has a spindle motor having an MD turntable and a CD turntable at both its ends.

摘要翻译： 在用于兼容地重放MD和具有不同定心孔直径和参考高度的CD的适配器和适配器和光盘装置中，第一夹紧机构具有用于MD和CD两者的锥形锥形部分，而第二 夹紧机构具有MD转盘和CD夹持器，其在夹住CD时被驱动与MD转盘接触。 适配器是具有与MD的定心孔相同的内径的孔和0.8mm的厚度的盘，即要附接到CD的适配器。 第一光盘装置具有MD主轴电机和CD主轴电机，并且包括物镜的光学系统布置在连接两个主轴电动机的直线上。 第二光盘装置具有在其两端具有MD转盘和CD转台的主轴电动机。

公开(公告)号：US5600515A

公开(公告)日：1997-02-04

申请号：US267876

申请日：1994-06-28

申请人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh

发明人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh

IPC分类号： G11B5/48 ,  G11B5/58 ,  G11B11/105 ,  G11B5/187 ,  G11B5/54 ,  G11B21/16

CPC分类号： G11B5/4813 ,  G11B11/1058 ,  G11B5/58

摘要： A magnetic head assembly used for an information storage medium including a sliding surface according to the present invention includes a magnetic-field generation means having a magnetic pole and for giving a magnetic field to the information storage medium; a slider means coupled with the magnetic-field generation means, the slider means having a projecting portion which projects toward the information storage medium; and a load means coupled with the slider means, the load means giving a pressing force to the slider means in a direction perpendicular to the sliding surface, and pressing the projecting portion onto the sliding surface, wherein a surface of the projecting portion of the slider means includes part of one almost spherical surface.

摘要翻译： 用于包括根据本发明的滑动表面的信息存储介质的磁头组件包括具有磁极并向信息存储介质提供磁场的磁场产生装置; 与磁场产生装置结合的滑块装置，滑块装置具有向信息存储介质突出的突出部分; 以及与所述滑块装置连接的负载装置，所述负载装置在垂直于所述滑动面的方向上向所述滑块装置施加按压力，并且将所述突出部分按压到所述滑动面上，其中，所述滑块的突出部分的表面 装置包括一个几乎球形的表面的一部分。

公开(公告)号：US5586105A

公开(公告)日：1996-12-17

申请号：US149724

申请日：1993-11-10

申请人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Hironori Tomita ,  Masanari Mohri

发明人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Hironori Tomita ,  Masanari Mohri

IPC分类号： G11B17/028 ,  G11B17/04

CPC分类号： G11B17/057 ,  G11B17/0282 ,  G11B17/0284 ,  G11B17/0565

摘要： In a clamp mechanism, an adapter, and an optical disc apparatus for compatibly playing back the MD and CD having different centering hole diameters and reference heights, a first clamp mechanism has a taper cone section for both an MD and a CD, while a second clamp mechanism has an MD turntable and a CD clamper which is driven in contact with the MD turntable while clamping the CD. The adapter is a disc which has a hole having the same inner diameter as that of the centering hole of the MD and a thickness of 0.8 mm, the adapter to be attached to the CD. A first optical disc apparatus has an MD spindle motor and a CD spindle motor, and an optical system including an objective lens is arranged on a straight line that connects both the spindle motors. A second optical disc apparatus has a spindle motor having an MD turntable and a CD turntable at both its ends.

摘要翻译： 在用于兼容地回放具有不同定心孔直径和参考高度的MD和CD的适配器和光盘装置中，第一夹紧机构具有用于MD和CD的锥形锥形部分，而第二 夹紧机构具有MD转盘和CD夹持器，其在夹住CD时被驱动与MD转盘接触。 适配器是具有与MD的定心孔相同的内径的孔和0.8mm的厚度的盘，即要附接到CD的适配器。 第一光盘装置具有MD主轴电机和CD主轴电机，并且包括物镜的光学系统布置在连接两个主轴电动机的直线上。 第二光盘装置具有在其两端具有MD转盘和CD转台的主轴电动机。

公开(公告)号：US5751688A

公开(公告)日：1998-05-12

申请号：US454566

申请日：1995-05-30

申请人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Hironori Tomita ,  Masanari Mohri

发明人： Osamu Mizuno ,  Tohru Nakamura ,  Hideki Aikoh ,  Hironori Tomita ,  Masanari Mohri

IPC分类号： G11B17/028 ,  G11B17/04

CPC分类号： G11B17/057 ,  G11B17/0282 ,  G11B17/0284 ,  G11B17/0565

摘要： An optical disc clamp mechanism that is capable of selectively playing back either of a compact disc or a mini disc. The clamp mechanism includes a circular disc receiving section for contacting a reference surface of either of the compact disc or the mini disc and further includes a magnetic clamp unit for clamping the mini disc by magnetic attraction with a magnetically attractable member of the mini disc. A first conical or spherical taper cone portion for engaging the center hole of the mini disc is mounted to the disc receiving section and a second conical or spherical taper cone portion for engaging the center hole of the compact disc is mounted to the disc receiving section. The first taper cone portion is located inwardly of the second taper cone portion and protrudes from the second taper cone portion in the axial direction. The magnetic clamp unit further includes a stopper element for preventing detachment of the first and second taper cone portions from the disc receiving section. Accordingly, the optical disc clamp mechanism independently affects the centering of a mini disc and a compact disc to allow either of the discs to be centered.

摘要翻译： 一种能够选择性地播放光盘或迷你光盘中的任何一个的光盘夹紧机构。 夹紧机构包括用于接触致密盘或小型盘之一的参考表面的圆盘接收部分，并且还包括用于通过磁吸引力将迷你盘夹紧在迷你盘的磁吸引构件上的磁夹单元。 用于接合微型盘的中心孔的第一锥形或球形锥形锥形部分安装到盘片接收部分，并且用于接合光盘的中心孔的第二锥形或球形锥形锥形部分安装到盘片接收部分。 第一锥形锥形部分位于第二锥形锥形部分的内侧，并且在轴向方向上从第二锥形锥形部分突出。 磁夹单元还包括用于防止第一和第二锥形锥部从盘接收部分脱离的止动件。 因此，光盘夹紧机构独立地影响微型盘和致密盘的对中，以允许任何一个盘对中。

公开(公告)号：US20070109923A1

公开(公告)日：2007-05-17

申请号：US10588113

申请日：2005-06-30

申请人： Osamu Mizuno ,  Hideki Aikoh ,  Takeharu Yamamoto

发明人： Osamu Mizuno ,  Hideki Aikoh ,  Takeharu Yamamoto

IPC分类号： G11B21/10

CPC分类号： G11B7/1376 ,  G11B7/0937 ,  G11B7/0946 ,  G11B7/0948 ,  G11B7/13927

摘要： [Problem]To provide an optical head having a satisfactory shock resistance and capable of holding an aberration correction lens without consuming power and achieving accurate positioning. [Means for Resolution]An aberration correction lens 4 is disposed in a space between a laser light source 3 and an objective lens 5, and a lens holder 10 is frictionally coupled to a drive shaft 7 via a frictional holding body 8. A piezoelectric element 6 is provided to one end of the drive shaft 7. The piezoelectric element 6 extends and contracts in response to an applied voltage. The lens holder 10 is moved relatively with respect to the drive shaft 7 in the drive shaft direction by varying a change rate when the applied voltage to the piezoelectric element 6 is increased and decreased.

摘要翻译： 本发明提供一种具有令人满意的抗冲击能力并能够保持像差校正透镜而不消耗功率并实现精确定位的光学头。 [分辨装置]像差校正透镜4设置在激光光源3和物镜5之间的空间中，透镜保持器10通过摩擦保持体8摩擦地联接到驱动轴7。 压电元件6设置在驱动轴7的一端。 压电元件6响应于施加的电压而延伸和收缩。 当对压电元件6的施加电压增加和减小时，通过改变变化率，透镜架10相对于驱动轴7在驱动轴方向上相对移动。