公开(公告)号：US06747921B2

公开(公告)日：2004-06-08

申请号：US10390129

申请日：2003-03-17

申请人： Kanji Wakabayashi ,  Hitoshi Fujii ,  Hiroshi Yamamoto ,  Masanari Mohri ,  Takayuki Kojima ,  Daisaburo Kubota ,  Kenichiro Urairi

发明人： Kanji Wakabayashi ,  Hitoshi Fujii ,  Hiroshi Yamamoto ,  Masanari Mohri ,  Takayuki Kojima ,  Daisaburo Kubota ,  Kenichiro Urairi

IPC分类号： G11B7095

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

摘要： An apparatus for driving an objective lens of the present invention includes: a base which is moved along an optical disk; an objective lens disposed so as to be opposed to the optical disk and having an optical axis in a vertical direction with respect to the optical disk, for optically recording information onto the optical disk or optically reproducing information from the optical disk; a holder portion for holding the objective lens; a plurality of elastic arms extending between the base and the holder portion in a tangent direction of the optical disk, for supporting the holder portion movably with respect to the base; and a driving portion for generating an electromagnetic force for moving the holder portion with respect to the base, wherein the elastic arms are disposed away from each other in a vertical direction, the base includes each movable portion for supporting one end of each of the elastic arms, and each of the movable portions is supported at each position in a vertical direction outside of one end of each of the elastic arms, so as to be elastically pivotable around each axis in a radius direction of the optical disk.

摘要翻译： 本发明的用于驱动物镜的装置包括：沿着光盘移动的基座; 物镜，其设置成与光盘相对并且在相对于光盘的垂直方向上具有光轴，用于将信息光学地记录到光盘上或从光盘再现信息; 用于保持物镜的保持器部分; 多个弹性臂，在所述基座和所述保持部之间沿所述光盘的切线方向延伸，用于相对于所述基座可移动地支撑所述保持部; 以及用于产生用于相对于基座移动保持器部分的电磁力的驱动部分，其中弹性臂在垂直方向上彼此远离地设置，所述基座包括用于支撑每个弹性体的一端的每个可移动部分 臂，并且每个可动部分在每个弹性臂的一端的垂直方向的每个位置处被支撑，以便能够围绕每个轴在光盘的半径方向上弹性地枢转。

公开(公告)号：US06657944B2

公开(公告)日：2003-12-02

申请号：US09790830

申请日：2001-02-22

申请人： Masanari Mohri ,  Hiroshi Yamamoto

发明人： Masanari Mohri ,  Hiroshi Yamamoto

IPC分类号： G11B709

CPC分类号： G11B7/22 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/121 ,  G11B21/16

摘要： In an objective lens driving device having a movable portion including an objective lens held by a lens holder, a damage prevention system for preventing the objective lens or a disk from being damaged when the objective lens or the lens holder collides with the disk is provided. The damage prevention system is constituted by inserting a protecting member formed of an elastic member in a fitting portion on an upper surface of the lens holder while being deformed. In this manner, it is possible to generate a sufficient holding power with respect to the protecting member without using glue or the like.

摘要翻译： 在具有包括由透镜架保持的物镜的可移动部分的物镜驱动装置中，设置有用于防止在物镜或镜架与盘碰撞时物镜或盘损坏的防损系统。 损伤防止系统通过将由弹性构件形成的保护构件插入透镜架的上表面的配合部分而变形而构成。 以这种方式，可以在不使用胶水等的情况下相对于保护构件产生足够的保持力。

公开(公告)号：US06587284B2

公开(公告)日：2003-07-01

申请号：US09967078

申请日：2001-09-28

申请人： Takeo Santo ,  Masanari Mohri ,  Hiroshi Yamamoto ,  Kanji Wakabayashi

发明人： Takeo Santo ,  Masanari Mohri ,  Hiroshi Yamamoto ,  Kanji Wakabayashi

IPC分类号： G02B702

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

摘要： An objective lens driving apparatus is improved in a tracking drive sensitivity, and is capable of suppressing the occurrence of a tilt when a moving member is driven for tracking and focusing motions. To achieve this, the objective lens driving apparatus comprises: a substantially rectangularly shaped focusing coil and a substantially rectangularly shaped tracking coil, both arranged in the same plane, and fixed to a lens holder to drive the lens holder on which an objective lens is held; and a magnet having mutually opposite magnetic poles arranged at positions opposite winding portions of the focusing coil which lie on two sides thereof extending perpendicularly to a focusing direction, and also having mutually opposite magnetic poles arranged at positions opposite winding portions of the tracking coil which lie on two sides thereof extending perpendicularly to a tracking direction.

公开(公告)号：US06549346B2

公开(公告)日：2003-04-15

申请号：US09982278

申请日：2001-10-17

申请人： Hidenori Wada ,  Keiichi Matsuzaki ,  Seiji Nishino ,  Tetsuo Saimi ,  Kenichi Kasazumi ,  Masanari Mohri

发明人： Hidenori Wada ,  Keiichi Matsuzaki ,  Seiji Nishino ,  Tetsuo Saimi ,  Kenichi Kasazumi ,  Masanari Mohri

IPC分类号： G02B702

CPC分类号： G11B7/22 ,  G02B7/021 ,  G02B7/025

摘要： An objective lens assembly includes: at least two groups of lenses having a common optical axis: and at least two lens holders for respectively holding the at least two groups of lenses, wherein each of the lens holders has an end face perpendicular to the optical axis, and the lens holders are positioned such that the end face of one of the lens holders faces the end face of the other lens holder, and a gap between these end faces is filled with an adhesive agent for adhering the lens holders to each other.

摘要翻译： 物镜组件包括：具有共同的光轴的至少两组透镜;以及用于分别保持至少两组透镜的至少两个透镜保持器，其中每个透镜保持器具有垂直于光轴的端面 并且透镜保持器定位成使得其中一个透镜保持器的端面面对另一个透镜保持器的端面，并且这些端面之间的间隙填充有用于将透镜保持器彼此粘合的粘合剂。

公开(公告)号：US06344936B1

公开(公告)日：2002-02-05

申请号：US09672847

申请日：2000-09-28

申请人： Takeo Santo ,  Masanari Mohri ,  Hiroshi Yamamoto ,  Kanji Wakabayashi

发明人： Takeo Santo ,  Masanari Mohri ,  Hiroshi Yamamoto ,  Kanji Wakabayashi

IPC分类号： G02B702

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

摘要： An objective lens driving apparatus is improved in a tracking drive sensitivity, and is capable of suppressing the occurrence of a tilt when a moving member is driven for tracking and focusing motions. To achieve this, the objective lens driving apparatus comprises: a substantially rectangularly shaped focusing coil and a substantially rectangularly shaped tracking coil, both arranged in the same plane, and fixed to a lens holder to drive the lens holder on which an objective lens is held; and a magnet having mutually opposite magnetic poles arranged at positions opposite winding portions of the focusing coil which lie on two sides thereof extending perpendicularly to a focusing direction, and also having mutually opposite magnetic poles arranged at positions opposite winding portions of the tracking coil which lie on two sides thereof extending perpendicularly to a tracking direction.

摘要翻译： 物镜驱动装置的跟踪驱动灵敏度得到改善，并且当驱动移动部件进行跟踪和聚焦运动时能够抑制倾斜的发生。 为了实现这一点，物镜驱动装置包括：基本上矩形的聚焦线圈和基本上矩形的跟踪线圈，均布置在同一平面中，并且固定到透镜保持器以驱动保持物镜的透镜保持器 ; 以及具有相互相对的磁极的磁体，其布置在聚焦线圈的相对的卷绕部分的相对于聚焦方向垂直延伸的两侧上的位置处，并且还具有相互相对的磁极，该磁极布置在跟踪线圈的绕组部分相对的位置， 在其两侧垂直于跟踪方向延伸。

公开(公告)号：US5077713A

公开(公告)日：1991-12-31

申请号：US628842

申请日：1990-12-11

申请人： Teruyuki Takizawa ,  Masanari Mohri ,  Tohru Nakamura

发明人： Teruyuki Takizawa ,  Masanari Mohri ,  Tohru Nakamura

IPC分类号： G11B11/10 ,  G11B5/54 ,  G11B11/105 ,  G11B19/20

CPC分类号： G11B19/20 ,  G11B11/1058 ,  G11B11/10595 ,  G11B5/54

摘要： In an opto-magnetic disk type writing/reading apparatus having a magnetic head held by a suspension load beam in an air-borne floating state over a surface of the opto-magnetic disk, the suspension load beam is raised up or put down in a manner that firstly the opto-magnetic disk is revolved at a higher revolution speed than the predetermined rated revolution speed for a predetermined short period, and thereafter the revolution speed is lowered to the predetermined revolution speed after soft-landing putting down of the magnetic head to achieve a steady-state air-borne floating position.

摘要翻译： 在具有以空气悬浮状态悬挂负载光束保持的磁头的光磁盘式写入/读取装置中，在光磁盘的表面上悬挂负载光束被升高或放下 首先使光磁盘在预定的短时间内以比预定的额定转速更高的转速旋转，之后将磁头降低到磁头的软着陆后的预定转速 实现稳态空中浮动位置。