公开(公告)号：US06865743B2

公开(公告)日：2005-03-08

申请号：US10717685

申请日：2003-11-19

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22

CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362 ,  G11B11/10597

摘要： A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.

公开(公告)号：US07036134B2

公开(公告)日：2006-04-25

申请号：US10965115

申请日：2004-10-14

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

IPC分类号： G11B7/00

CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362 ,  G11B11/10597

摘要： A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.

摘要翻译： 反射镜和光学台被放置在设置有用于保持反射镜的反射镜保持部分的外部夹具上，然后将反射镜和光学台架固定并固定，从而获得光学头。 在光学平台上不再需要用于反射镜的粘合参考平面，从而减小了光学平台的尺寸和成本。 安装精度高，稳定。 此外，反射镜在其两个相对的侧面的大致中心附近被粘接固定，因此由于粘合剂的膨胀或收缩导致的反射镜的取向的变化减小，因此实现了高度可靠的光学 头部环境稳定性好。

公开(公告)号：US20050047319A1

公开(公告)日：2005-03-03

申请号：US10965115

申请日：2004-10-14

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G11B7/00

CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362 ,  G11B11/10597

摘要： A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.

摘要翻译： 反射镜和光学台被放置在设置有用于保持反射镜的反射镜保持部分的外部夹具上，然后将反射镜和光学台架固定并固定，从而获得光学头。 在光学平台上不再需要用于反射镜的粘合参考平面，从而减小了光学平台的尺寸和成本。 安装精度高，稳定。 此外，反射镜在其两个相对的侧面的大致中心附近被粘接固定，因此由于粘合剂的膨胀或收缩导致的反射镜的取向的变化减小，因此实现了高度可靠的光学 头部环境稳定性好。

公开(公告)号：US08299782B2

公开(公告)日：2012-10-30

申请号：US11918613

申请日：2006-04-18

申请人： Osamu Mizuno ,  Hiroshi Yamamoto ,  Takuya Wada ,  Hideki Aikoh ,  Kanji Wakabayashi ,  Takatoshi Yukimasa

发明人： Osamu Mizuno ,  Hiroshi Yamamoto ,  Takuya Wada ,  Hideki Aikoh ,  Kanji Wakabayashi ,  Takatoshi Yukimasa

IPC分类号： G01B7/14

CPC分类号： G01D5/145 ,  G11B7/08505 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/0013

摘要： As imaging devices are miniaturized, and optical devices are miniaturized, lens moving mechanisms are also miniaturized. Thus, position sensors for them are required to be miniaturized and have high accuracy at low cost. A magnet of a pillar shape and a yoke which move in the X axis direction with respect to a magnetic field detection element are provided, and a shape of a cross section of the yoke which is orthogonal to a longitudinal direction of the magnet changes along the longitudinal direction.

摘要翻译： 随着成像装置小型化，光学装置小型化，透镜移动机构也小型化。 因此，它们的位置传感器需要小型化并且以低成本具有高精度。 提供了相对于磁场检测元件沿X轴方向移动的柱状磁轭和磁轭，并且与磁体的长度方向正交的轭的截面形状沿着 纵向。

公开(公告)号：US20050128897A1

公开(公告)日：2005-06-16

申请号：US11005071

申请日：2004-12-06

申请人： Fumitomo Yamasaki ,  Takuya Wada ,  Hideki Aikoh

发明人： Fumitomo Yamasaki ,  Takuya Wada ,  Hideki Aikoh

IPC分类号： G11B7/00 ,  G11B7/08 ,  G11B7/12 ,  G11B7/14 ,  G11B21/02

CPC分类号： G11B21/02 ,  G11B7/08 ,  G11B7/12 ,  G11B2007/0006

摘要： In an optical head for performing the reproduction or recording of information for two or more types of different optical disks, the damage caused to an optical disk or an objective lens by collision between the optical disk and the objective lens is avoided. An optical heads device for reproducing or recording two or more types of information recording mediums different from each other comprises a first optical system, a second optical system, and a control unit for avoiding the collision between an optical disk and a second objective lens when a first optical system is in operation.

摘要翻译： 在用于执行用于两种或更多种类型的不同光盘的信息的再现或记录的光学头中，避免了由光盘和物镜之间的碰撞对光盘或物镜造成的损坏。 用于再现或记录彼此不同的两种或更多种类型的信息记录介质的光学头装置包括：第一光学系统，第二光学系统和控制单元，用于避免当光盘和第二物镜之间的碰撞时 第一光学系统正在运行。

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：US06941572B2

公开(公告)日：2005-09-06

申请号：US10475794

申请日：2002-04-22

申请人： Takuya Wada ,  Hideki Aikoh

发明人： Takuya Wada ,  Hideki Aikoh

IPC分类号： G11B17/028 ,  G11B23/00 ,  G11B7/24

CPC分类号： G11B17/0282 ,  G11B23/0035

摘要： It is an object to provide an optical information recording medium including a substrate (1) and an optical information layer in one of the layers the substrate (1) and having a light incident surface on at least one of the surfaces of the substrate side and the opposite side. The optical information recording medium also includes a magnetic clamp layer (2) at a position not disturbing the incident light into the optical information layer from the light incident surface and covering optical information layer partially or entirely. The magnetic clamp layer (2) is pulled by and fixed to the magnet of an optical information recording/reproduction apparatus. The pulling force between the clamp layer and the magnet is preferably in a range from 0.1 N to 5 N. Thus, it is possible to provide an optical information recording medium and an optical information recording/reproduction apparatus in which recording/reproduction can be performed up to the vicinity of the center of the substrate (1).

摘要翻译： 本发明的目的是提供一种光学信息记录介质，其包括在基板（1）的一个层中的基板（1）和光学信息层，并且在基板侧的至少一个表面上具有光入射表面，以及 对面。 光信息记录介质还包括在不干扰从入射光入射到光信息层中的入射光并部分或全部覆盖光信息层的位置的磁夹层（2）。 磁性夹层（2）由光信息记录/再现装置的磁体拉动并固定。 钳位层和磁体之间的拉力优选在0.1N至5N的范围内。因此，可以提供可以进行记录/再现的光学信息记录介质和光学信息记录/再现设备 直到基板（1）的中心附近。

公开(公告)号：US20090072818A1

公开(公告)日：2009-03-19

申请号：US11918613

申请日：2006-04-18

申请人： Osamu Mizuno ,  Hiroshi Yamamoto ,  Takuya Wada ,  Hideki Aikoh ,  Kanji Wakabayashi ,  Takatoshi Yukimasa

发明人： Osamu Mizuno ,  Hiroshi Yamamoto ,  Takuya Wada ,  Hideki Aikoh ,  Kanji Wakabayashi ,  Takatoshi Yukimasa

IPC分类号： G01B7/14

CPC分类号： G01D5/145 ,  G11B7/08505 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/0013

摘要： As imaging devices are miniaturized, and optical devices are miniaturized, lens moving mechanisms are also miniaturized. Thus, position sensors for them are required to be miniaturized and have high accuracy at low cost. A magnet 2 of a pillar shape and a yoke 3 which move in X axis direction with respect to a magnetic field detection element 1 are provided, and a shape of a cross section of the yoke 3 which is orthogonal to a longitudinal direction of the magnet 2 changes along the longitudinal direction.

摘要翻译： 随着成像装置小型化，光学装置小型化，透镜移动机构也小型化。 因此，它们的位置传感器需要小型化并且以低成本具有高精度。 设置有相对于磁场检测元件1在X轴方向上移动的柱状的磁体2和磁轭3，并且与磁体的长度方向正交的磁轭3的截面形状 2沿纵向变化。

公开(公告)号：US07366072B2

公开(公告)日：2008-04-29

申请号：US11005071

申请日：2004-12-06

申请人： Fumitomo Yamasaki ,  Takuya Wada ,  Hideki Aikoh

发明人： Fumitomo Yamasaki ,  Takuya Wada ,  Hideki Aikoh

IPC分类号： G11B7/00

CPC分类号： G11B21/02 ,  G11B7/08 ,  G11B7/12 ,  G11B2007/0006

摘要： In an optical head for performing the reproduction or recording of information for two or more types of different optical disks, the damage caused to an optical disk or an objective lens by collision between the optical disk and the objective lens is avoided. An optical heads device for reproducing or recording two or more types of information recording mediums different from each other comprises a first optical system, a second optical system, and a control unit for avoiding the collision between an optical disk and a second objective lens when a first optical system is in operation.

摘要翻译： 在用于执行用于两种或更多种类型的不同光盘的信息的再现或记录的光学头中，避免了由光盘和物镜之间的碰撞对光盘或物镜造成的损坏。 用于再现或记录彼此不同的两种或更多种类型的信息记录介质的光学头装置包括：第一光学系统，第二光学系统和控制单元，用于避免当光盘和第二物镜之间的碰撞时 第一光学系统正在运行。

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。