公开(公告)号：US5663841A

公开(公告)日：1997-09-02

申请号：US502086

申请日：1995-07-12

申请人： Taichi Akiba ,  Osamu Ueda ,  Masayuki Koyama ,  Shigeyuki Sasanuma

发明人： Taichi Akiba ,  Osamu Ueda ,  Masayuki Koyama ,  Shigeyuki Sasanuma

IPC分类号： G11B7/09 ,  G02B7/04 ,  G11B7/095

CPC分类号： G11B7/0935 ,  G11B7/093

摘要： A holder is suspended on a carriage, and a magnetic circuit is disposed adjacent to the holder. The magnetic circuit has a first magnetic pole and a second magnetic pole. A focus coil having a magnetic flux receiving portion is provided around a vertical axis of the holder. A tacking coil having a magnetic flux receiving portion is provided around a horizontal axis of the holder. Both the magnetic flux receiving portions are disposed so as not to be overlapped with each other, and disposed in parallel with one of the surface of the first and second magnetic poles. Both of the magnetic flux receiving portions are flush with each other.

摘要翻译： 支架悬挂在支架上，并且磁路设置在支架附近。 磁路具有第一磁极和第二磁极。 具有磁通量接收部分的聚焦线圈围绕保持器的垂直轴设置。 具有磁通量接收部分的固定线圈围绕保持器的水平轴设置。 这两个磁通量接收部被配置为不彼此重叠，并且与第一和第二磁极的表面中的一个平行地设置。 两个磁通量接收部分彼此齐平。

公开(公告)号：US07002879B2

公开(公告)日：2006-02-21

申请号：US09986403

申请日：2001-11-08

申请人： Kazutaka Goami ,  Jun Suzuki ,  Shigeru Takaya ,  Shigeyuki Sasanuma ,  Shinichi Fujinoki

发明人： Kazutaka Goami ,  Jun Suzuki ,  Shigeru Takaya ,  Shigeyuki Sasanuma ,  Shinichi Fujinoki

IPC分类号： G11B7/00

CPC分类号： G11B7/1359 ,  G11B7/082 ,  G11B7/0903 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/1275 ,  G11B7/1395 ,  G11B7/22 ,  G11B2007/0006

摘要： A lens driving apparatus for driving a movable body in a focus direction and a tracking direction is provided with: a holder, to which a focus coil, a tracking coil and a lens are installed, to thereby constitute the movable body; and a magnetic circuit for applying magnetic fluxes to the focus coil and the tracking coil, to thereby drive the movable body in the focus direction and the tracking direction. The tracking coil includes two sets each having upper and lower two coils arrayed in the focus direction such that the two sets are arrayed in the tracking direction. The magnetic circuit applies the magnetic fluxes opposite to each other along a jitter direction, with respect to the upper two coils and the lower two coils without applying the magnetic fluxes with respect to portions adjacent to the upper and lower two coils.

公开(公告)号：US06178155B1

公开(公告)日：2001-01-23

申请号：US08890984

申请日：1997-07-10

申请人： Osamu Ueda ,  Jun Suzuki ,  Shigeyuki Sasanuma ,  Shinichi Fujinoki

发明人： Osamu Ueda ,  Jun Suzuki ,  Shigeyuki Sasanuma ,  Shinichi Fujinoki

IPC分类号： G11B1700

CPC分类号： G11B7/0956 ,  G11B7/08582 ,  G11B33/08 ,  G11B2007/0006

摘要： There is provided an optical pickup for use in an information reproducing apparatus for playing an optical disc, said optical pickup comprising: a main pickup body carrying an objective lens; a sub-pickup body pivotably connected with the main pickup body; a connecting structure formed in connection with the main pickup body for pivotably supporting the sub pickup body. A space having a predetermined size is formed between the main pickup body and the connecting structure. The material thickness between the main pickup body and the connecting structure is made thinner by virtue of the formation of said groove.

摘要翻译： 提供了一种用于播放光盘的信息再现装置中的光学拾取器，所述光学拾取器包括：承载物镜的主拾取器主体; 与所述主拾取器主体可枢转地连接的副拾取器体; 连接结构，其与主拾取器主体相连，用于可枢转地支撑副拾取器主体。 在主拾取器主体和连接结构之间形成具有预定尺寸的空间。 由于所述槽的形成，主拾取体和连接结构之间的材料厚度变薄。

公开(公告)号：US06925036B2

公开(公告)日：2005-08-02

申请号：US09986387

申请日：2001-11-08

申请人： Shinichi Fujinoki ,  Shigeru Takaya ,  Shigeyuki Sasanuma ,  Kazutaka Goami

发明人： Shinichi Fujinoki ,  Shigeru Takaya ,  Shigeyuki Sasanuma ,  Kazutaka Goami

IPC分类号： G02B5/18 ,  G11B7/00 ,  G11B7/085 ,  G11B7/09 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  G11B7/22 ,  G11B7/095

CPC分类号： G11B7/22 ,  G11B7/08576 ,  G11B7/0903 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/127 ,  G11B7/13 ,  G11B7/1353 ,  G11B7/1356 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical pickup apparatus (100) is provided with: a carriage body (80); an optical parts accommodation module (70) mounted on said carriage body and accommodating at least (i) a light beam emitting portion (41, 42, 55) for emitting a light beam, (ii) a light beam receiving portion (57, 65), (iii) a beam splitter (44) and (iv) a grating (43) for generating a sub beam for a tracking adjustment out of the light beam emitted from said light beam emitting portion; and a grating adjustment mechanism (62, 63) for rotating said optical parts accommodation module. The optical parts accommodation module is mounted on said carriage body in such a condition that said optical parts accommodation module is allowed to rotate with an axis line of the light beam, which is irradiated toward a disc, as a rotational center. The grating adjustment mechanism has a cam plane (63) abut to an abut plane (52) formed at a portion apart from the axis line and including a slide cam member (62) mounted in such a condition that said slide cam member is regulated to be movable on a straight line with respect to said carriage body.

摘要翻译： 光拾取装置（100）具有：滑架主体（80）; 安装在所述滑架主体上并容纳至少（i）用于发射光束的光束发射部分（41,42,55）的光学部件容纳模块（70），（ii）光束接收部分（57,65 ），（iii）分束器（44）和（iv）光栅（43），用于产生用于从所述光束发射部分发射的光束中的跟踪调整的子光束; 以及用于旋转所述光学部件调节模块的光栅调节机构（62,63）。 光学部件容纳模块以允许所述光学部件容纳模块以朝向盘照射的光束的轴线为旋转中心的方式旋转的状态安装在所述滑架主体上。 光栅调整机构具有与形成在与轴线分开的部分处的抵接平面（52）的凸轮平面（63），并且包括滑动凸轮部件（62），所述滑动凸轮部件（62）以将所述滑动凸轮部件调节到 可相对于所述滑架主体在直线上移动。