公开(公告)号：US06906430B2

公开(公告)日：2005-06-14

申请号：US10445300

申请日：2003-05-27

申请人： Jun Suzuki ,  Eiji Kuroki ,  Muneyuki Horiguchi

发明人： Jun Suzuki ,  Eiji Kuroki ,  Muneyuki Horiguchi

IPC分类号： G11B7/09 ,  G11B7/12 ,  H01L23/58

CPC分类号： G11B7/0935 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/12

摘要： The actuator is used in a pickup device for a drive device of an optical disc. The actuator is positioned opposing to the optical disc to irradiates a light beam from a light source to an information recording surface of the optical disc. The objective lens is fixed at on the lens holder forming the actuator at a position closer to one end thereof. One coil substrate is fixed on one side face of the lens holder in a range from the one end of the lens holder to a center portion of the lens holder, and the other coil substrate is fixed on the other side face of the lens holder in a range from the other end of the lens holder to the center portion of the lens holder. Therefore, near the end of the lens holder on the objective lens side, the coil substrate is not attached to one side of the lens holder, providing a space below the objective lens. By arranging an optical system to guide the light beam to the objective lens via the space, the optical system can be arranged at the same height level as the actuator.

摘要翻译： 致动器用于光盘的驱动装置的拾取装置中。 致动器定位成与光盘相对，以将来自光源的光束照射到光盘的信息记录表面。 物镜固定在形成致动器的透镜架上，靠近其一端的位置。 一个线圈基板在从透镜保持架的一端到透镜保持架的中心部分的范围内固定在透镜保持器的一个侧面上，另一个线圈基板固定在透镜保持器的另一侧面上 从透镜保持器的另一端到透镜保持器的中心部分的范围。 因此，在物镜侧的透镜保持架的端部附近，线圈基板未安装在透镜保持架的一侧，在物镜下方设置有空间。 通过布置光学系统以经由空间将光束引导到物镜，光学系统可以布置在与致动器相同的高度水平处。

公开(公告)号：US07137133B2

公开(公告)日：2006-11-14

申请号：US10445308

申请日：2003-05-27

申请人： Jun Suzuki ,  Eiji Kuroki ,  Muneyuki Horiguchi

发明人： Jun Suzuki ,  Eiji Kuroki ,  Muneyuki Horiguchi

IPC分类号： G11B7/08

CPC分类号： G11B7/12 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0935

摘要： The pickup device is used in a drive device of an optical disc and is opposed to the optical disc to irradiate a light beam from a light source onto an information recording surface of the optical disc. The pickup device has the actuator including the objective lens for condensing a light beam on the information recording surface of the optical disc, and irradiation of a light beam on the optical disc is controlled by moving the objective lens. Further, the pickup device has the optical system for directing a light beam, which is emitted from the light source, to a position below the objective lens. The optical system is placed at the same height level as the actuator. Therefore, as compared with the case where the optical system is provided below the actuator, the whole pickup can be smaller in thickness, and it is possible to provide a pickup device suitable for a thin drive device.

摘要翻译： 拾取装置用于光盘的驱动装置中，并且与光盘相对，以将来自光源的光束照射到光盘的信息记录表面上。 拾取装置具有致动器，其包括用于将光束聚光在光盘的信息记录表面上的物镜，并且通过移动物镜来控制光盘上的光束的照射。 此外，拾取装置具有用于将从光源发射的光束引导到物镜下方的位置的光学系统。 光学系统被放置在与致动器相同的高度水平处。 因此，与将光学系统设置在致动器下方的情况相比，整个拾取器的厚度可以更小，并且可以提供适合于薄型驱动装置的拾取装置。

公开(公告)号：US07062775B2

公开(公告)日：2006-06-13

申请号：US10210136

申请日：2002-07-31

申请人： Jun Suzuki ,  Eiji Kuroki ,  Kazutaka Goami

发明人： Jun Suzuki ,  Eiji Kuroki ,  Kazutaka Goami

IPC分类号： G11B7/08 ,  G11B21/16

CPC分类号： G11B7/0933 ,  G11B7/0935

摘要： A magnet used for an actuator of an optical pickup has a magnetization pattern with two different pole areas adjacent each other. At a corner part defined by the boundary line of the two pole areas, the pole area inside the corner part has a projection area, projecting in the direction of the pole area outside the corner part. Owing to the existence of the projection area, insufficiency of the magnetic flux density at the corner part particularly close to the vertex can be improved so that a desirable magnetic field can be provided to the printed coil substrate disposed in the vicinity of the magnet.

摘要翻译： 用于光学拾取器的致动器的磁体具有彼此相邻的两个不同极区域的磁化模式。 在由两个极区域的边界线限定的角部，角部内的极区域具有在角部外侧的极区域的方向上突出的投影区域。 由于存在投影区域，所以可以提高特别靠近顶点的角部处的磁通密度的不足，从而可以对设置在磁体附近的印刷线圈基板提供期望的磁场。

公开(公告)号：US06825999B2

公开(公告)日：2004-11-30

申请号：US10445302

申请日：2003-05-27

申请人： Jun Suzuki ,  Eiji Kuroki

发明人： Jun Suzuki ,  Eiji Kuroki

IPC分类号： G02B702

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

摘要： A coil substrate used for a lens driving apparatus is provided in a drive device for an optical disc. The coil substrate includes a tracking coil and a pair of focus coils disposed on a substantially rectangular substrate. The pair of the focus coils is disposed on the both sides of the tracking coil in the direction of the longer side of the substrate. The tracking coil and the focus coils may be substantially aligned in the direction of the longer side of the substrate, or may have the substantially equal lengths in the direction of the shorter side of the substrate. Thereby, the lengths of the coils in the direction of shorter side of the coil substrate can be made smaller. Thus, the coil substrate and the magnet can be reduced in size, and the miniaturization of the entire lens driving apparatus can be achieved.

公开(公告)号：US06594223B2

公开(公告)日：2003-07-15

申请号：US09779874

申请日：2001-02-08

申请人： Jun Suzuki ,  Katsumi Ishii ,  Eiji Kuroki

发明人： Jun Suzuki ,  Katsumi Ishii ,  Eiji Kuroki

IPC分类号： G11B7095

CPC分类号： G11B7/0932 ,  G11B7/0925 ,  G11B7/22

摘要： A lens driving apparatus for a disk player capable of easily approaching to the innermost circumference of a disk and realizing a reduction in size and weight thereof, in which: an actuator section where a movable portion including printed board coils fixed to the respective side surfaces of a lens holder containing an objective lens is movably supported by outer circumferential side wire-form elastic members and inner circumferential side wire-form elastic members fixed to an actuator base, and a suspension base including a pair of yokes to which a pair of magnets disposed so as to be opposed to each other with a predetermined magnetic space therebetween are fixed and standing portions are included; and a width Wi of each of the inner circumferential side wire-form elastic members is set to be greater than a width Wo of each of the outer circumferential side wire-form elastic members.

摘要翻译： 一种用于盘式播放器的透镜驱动装置，其能够容易地接近盘的最内圆周并实现其尺寸和重量的减小，其中：致动器部分，其中包括固定到各个侧面的印刷板线圈的可动部分 包含物镜的透镜保持架由外周侧线状弹性构件和固定于致动器基座的内周侧线状弹性构件可移动地支撑，以及悬架基部，其包括一对磁铁，一对磁铁设置在该悬架基座上 以彼此之间的预定磁空间彼此相对固定并且包括立体部分; 并且每个内周侧线状弹性构件的宽度Wi被设定为大于每个外周侧线状弹性构件的宽度Wo。

公开(公告)号：US07278149B2

公开(公告)日：2007-10-02

申请号：US11411150

申请日：2006-04-26

申请人： Jun Suzuki ,  Eiji Kuroki ,  Kazutaka Goami

发明人： Jun Suzuki ,  Eiji Kuroki ,  Kazutaka Goami

IPC分类号： G11B7/08

CPC分类号： G11B7/0933 ,  G11B7/0935

摘要： A magnet used for an actuator of an optical pickup has a magnetization pattern has two different pole areas adjacent with each other. At a corner part defined by the boundary line of the two pole areas, the pole area inside the corner part has a projection area, projecting in the direction of the pole area outside the corner part. Owing to the existence of the projection area, insufficiency of the magnetic flux density at the corner part particularly close to the vertex can be improved so that a desirable magnetic field can be provided to the printed coil substrate disposed in the vicinity of the magnet.

摘要翻译： 用于光学拾取器的致动器的磁体具有彼此相邻的两个不同的极区域的磁化模式。 在由两个极区域的边界线限定的角部，角部内的极区域具有在角部外侧的极区域的方向上突出的投影区域。 由于存在投影区域，所以可以提高特别靠近顶点的角部处的磁通密度的不足，从而可以对设置在磁体附近的印刷线圈基板提供期望的磁场。

公开(公告)号：US07286448B2

公开(公告)日：2007-10-23

申请号：US10699836

申请日：2003-11-04

申请人： Jun Suzuki ,  Eiji Kuroki

发明人： Jun Suzuki ,  Eiji Kuroki

IPC分类号： G11B7/24 ,  G02B7/02

CPC分类号： G11B7/125 ,  G02B7/025

摘要： Provided is an actuator for use in a pickup device, which can improve the quality of the pickup device by reducing a lens distortion even when the frequency of an electromagnetic drive rises beyond a servo band and causes resonance of a lens holder. An adhesive layer (11) is formed between an outer peripheral portion (6A) of an objective lens (6) and a lens holder (4). This adhesive layer (11) has a sufficient thickness dimension enough to absorb deformation of the lens holder (4) even when the lens holder (4) is deformed due to resonance. Even when the frequency at which an electromagnetic drive (9) operates rises beyond the servo band and causes resonance of the lens holder (4), the adhesive layer (11) functions as a buffer so that deformation of the lens holder (4) is less transmitted to the objective lens (6).

摘要翻译： 提供了一种用于拾取装置的致动器，其可以通过减小透镜失真来提高拾取装置的质量，即使当电磁驱动的频率上升超过伺服带并引起透镜架的共振时。 在物镜（6）的外周部（6A）和透镜保持架（4）之间形成有粘接层（11）。 即使当透镜保持器（4）由于共振而变形时，该粘合剂层（11）也具有足以吸收透镜保持件（4）的变形的足够的厚度尺寸。 即使当电磁驱动（9）操作的频率上升超过伺服带并引起透镜保持器（4）的共振时，粘合剂层（11）用作缓冲器，使得透镜保持器（4）的变形为 较少传输到物镜（6）。

公开(公告)号：US20060195854A1

公开(公告)日：2006-08-31

申请号：US11411150

申请日：2006-04-26

申请人： Jun Suzuki ,  Eiji Kuroki ,  Kazutaka Goami

发明人： Jun Suzuki ,  Eiji Kuroki ,  Kazutaka Goami

IPC分类号： G11B7/08

CPC分类号： G11B7/0933 ,  G11B7/0935

摘要： A magnet used for an actuator of an optical pickup has a magnetization pattern has two different pole areas adjacent with each other. At a corner part defined by the boundary line of the two pole areas, the pole area inside the corner part has a projection area, projecting in the direction of the pole area outside the corner part. Owing to the existence of the projection area, insufficiency of the magnetic flux density at the corner part particularly close to the vertex can be improved so that a desirable magnetic field can be provided to the printed coil substrate disposed in the vicinity of the magnet.

公开(公告)号：US06504813B2

公开(公告)日：2003-01-07

申请号：US09778846

申请日：2001-02-08

申请人： Jun Suzuki ,  Eiji Kuroki

发明人： Jun Suzuki ,  Eiji Kuroki

IPC分类号： G11B1700

CPC分类号： G11B7/0933 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0935

摘要： An apparatus is disclosed for driving a lens for use with a disk player to avoid the swing movement of a movable member without the degradation of the sensitivity of an actuator. The apparatus includes magnetic flux producing elements for providing magnetic flux to tracking coils fixed to a lens holder parallel to a focusing direction. The magnetic flux producing elements provide a first magnetic flux to a first area of the coil and a second magnetic flux to a second area of the coil. The first magnetic flux has a direction opposite to that of the second magnetic flux. At least a portion of a boundary surface between the first and the second areas is inclined from a focus direction of the lens.

摘要翻译： 公开了一种用于驱动与盘播放机一起使用的镜头的装置，以避免可动件的摆动运动，而不会降低致动器的灵敏度。 该装置包括用于向平行于聚焦方向固定到透镜保持器的跟踪线圈提供磁通量的磁通量产生元件。 磁通产生元件向线圈的第一区域提供第一磁通量，并向第二区域提供第二磁通量。 第一磁通具有与第二磁通的方向相反的方向。 第一和第二区域之间的边界面的至少一部分从透镜的聚焦方向倾斜。

公开(公告)号：US20090135704A1

公开(公告)日：2009-05-28

申请号：US12295601

申请日：2007-03-13

申请人： Hiroyuki Watanabe ,  Eiji Kuroki

发明人： Hiroyuki Watanabe ,  Eiji Kuroki

IPC分类号： G11B7/00 ,  G02B5/18

CPC分类号： G11B7/12 ,  G11B7/1353

摘要： The present invention provides a retaining body and the like which adjust a diffraction state of a laser beam using a simple configuration.The retaining body of the invention is a retaining body 15 of a diffraction grating 41 attached to a base 2 of an optical pickup P. The retaining body 15 includes a main body 16, first retaining means 15a which retains a diffraction grating 41 while the diffraction grating 41 is rotatable with respect to the main body 16, second retaining means 17, 19 which retain the main body 16 while the main body 16 is rotatable with respect to base 2, and main body moving means 18, 18a which are used to move the main body 16 with respect to the base 2.

摘要翻译： 本发明提供一种使用简单结构调整激光束的衍射状态的保持体等。 本发明的保持体是安装在光学拾取器P的基座2上的衍射光栅41的保持体15.保持体15包括主体16，第一保持机构15a，其保持衍射光栅41，同时衍射 光栅41可相对于主体16旋转，第二保持装置17,19保持主体16，同时主体16可相对于基座2旋转，主体移动装置18,18a用于移动 主体16相对于基座2。