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1.发明授权Optical pickup apparatus and optical parts accommodation module for optical pickup 失效用于光学拾取器的光学拾取装置和光学部件调节模块公开(公告)号：US06925036B2
公开(公告)日：2005-08-02
申请号：US09986387
申请日：2001-11-08
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。
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公开(公告)号：US07002879B2
公开(公告)日：2006-02-21
申请号：US09986403
申请日：2001-11-08
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.
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公开(公告)号：US5805557A
公开(公告)日：1998-09-08
申请号：US927198
申请日：1997-09-11
申请人： Hitoshi Furuhata , Aki Terajima , Shigeru Takaya , Masufumi Asada
发明人： Hitoshi Furuhata , Aki Terajima , Shigeru Takaya , Masufumi Asada
CPC分类号： G11B7/1353 , G02B5/1814 , G11B7/094 , G11B7/131 , G11B7/0912
摘要： There is provided an optical pickup which comprises a light source, an objective lens for converging a beam from the light source onto an optical disc, a diffraction grating for passing a beam returning from the optical disc, a photo-detector for receiving returning beams passing through the diffraction grating. The diffraction grating is divided into two areas, each area including alternatively arranged first diffraction grating pattern and second diffraction grating pattern.
摘要翻译： 提供了一种光学拾取器，其包括光源，用于将来自光源的光束会聚到光盘上的物镜，用于使从光盘返回的光束通过的衍射光栅，用于接收通过的返回光束的光检测器 通过衍射光栅。 衍射光栅分为两个区域，每个区域包括交替布置的第一衍射光栅图案和第二衍射光栅图案。
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公开(公告)号：US5703864A
公开(公告)日：1997-12-30
申请号：US623821
申请日：1996-03-29
摘要： An optical pickup device includes an objective lens assembly including an objective lens facing a surface of an optical disk, an actuator base supporting the objective lens to be movable, and a body in which an optical element is accommodated, the actuator base being supported by the body to be slidable. The actuator base is provided with a first flat portion positioned in a vicinity of the optical disk surface and a second flat portion apart from the optical disk surface, the first and second flat portions being formed with first and second protruded pieces having spherical end surfaces, and the body is formed with first and second receiving portions against which the first and second protruded pieces abut, respectively. The optical body is composed of a first supporting portion for supporting the first flat portion, a second supporting portion for supporting the second flat portion and an intermediate portion disposed below the first flat portion.
摘要翻译： 一种光学拾取装置，包括：物镜组件，其包括面对光盘表面的物镜;支撑可移动的物镜的致动器基座;容纳光学元件的主体;致动器基座由 身体可滑动 致动器基座设置有位于光盘表面附近的第一平坦部分和与光盘表面分开的第二平坦部分，第一和第二平坦部分形成有具有球形端面的第一和第二突出部分， 并且主体分别形成有第一和第二突出部抵靠的第一和第二接收部。 光学体由用于支撑第一平坦部分的第一支撑部分，用于支撑第二平坦部分的第二支撑部分和设置在第一平坦部分下方的中间部分组成。
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公开(公告)号：US5850313A
公开(公告)日：1998-12-15
申请号：US778455
申请日：1997-01-03
CPC分类号： G11B7/22 , G11B7/0932 , G11B7/0933 , G11B7/0935
摘要： There is provided an objective lens driving device, wherein a lens holder for holding an objective lens and a coil unit is connected with and floatingly supported by a base block using a plurality of elongate flexible metal members. The objective lens driving device is formed by positioning a plurality of elongate flexible metal members at the predetermined positions with respect to the lens holder and the base block which are to be formed, forming the lens holder integrally connected with one end of each elongate flexible metal member, forming the base block integrally connected with the other end of each elongate flexible metal member, attaching the objective lens and the coil unit in the lens holder.
摘要翻译： 提供了一种物镜驱动装置，其中用于保持物镜和线圈单元的透镜保持器使用多个细长的柔性金属构件与基座块连接并浮动地支撑。 物镜驱动装置通过将多个细长的柔性金属构件相对于要形成的透镜保持件和基座定位在预定位置而形成，形成与每个细长柔性金属的一端一体连接的透镜保持架 形成与每个细长柔性金属构件的另一端一体连接的基座块，将物镜和线圈单元附接到透镜保持器中。
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公开(公告)号：US5748579A
公开(公告)日：1998-05-05
申请号：US606313
申请日：1996-02-23
IPC分类号： G11B11/10 , G11B7/09 , G11B11/105 , G11B7/08
CPC分类号： G11B11/10532 , G11B11/10576 , G11B7/0933 , G11B7/0935
摘要： An optical pickup magneto-optically records information on a magneto optical disc in cooperation with a magnetic head. The optical pickup is disposed at one surface side of the magneto optical disc while the magnetic head is disposed at the other surface side of the magneto optical disc during a recording operation of the magneto optical disc. The optical pickup is provided with: a light emission device for emitting a light beam; an optical system for guiding the emitted light beam; an objective lens for converging and focusing the guided light beam onto the optical disc; and an actuator holding the objective lens and having a magnetic circuit for actuating the objective lens to move in focusing and tracking directions respectively of the magneto optical disc by a magnetic force generated by the magnetic circuit. The magnetic circuit includes a magnetic flux generation device for generating a magnetic flux and a yoke for transmitting the generated magnetic flux in the magnetic circuit to generate the magnetic force. The optical pickup is further provided with: a base plate, to which the actuator is attached, having a wall portion prescribing an aperture through which the light beam passing the objective lens is transmitted; and a body case having a wall prescribing an internal space and an opening, which opens toward the magneto optical disc and which is covered by the base plate, for accommodating the light emission device, the optical system and the magnetic circuit.
摘要翻译： 磁光拾取器与磁头一起磁光记录在磁光盘上的信息。 在磁光盘的记录操作期间，磁头设置在磁光盘的一个表面侧，同时磁头设置在磁光盘的另一个表面侧。 光学拾取器设置有：用于发射光束的发光装置; 用于引导发射的光束的光学系统; 用于将引导光束会聚并聚焦到光盘上的物镜; 以及保持物镜并具有用于致动物镜的磁路的致动器，其通过由磁路产生的磁力分别在磁光盘的聚焦和跟踪方向上移动。 磁路包括用于产生磁通的磁通量产生装置和用于传输磁路中产生的磁通量以产生磁力的磁轭。 光学拾取器还设置有：基板，致动器附接到该基板，具有壁部分，该壁部分设置有透过物镜的光束穿过的孔; 以及壳体，具有规定内部空间的壁和朝向磁光盘开口并由基板覆盖的开口，用于容纳发光装置，光学系统和磁路。
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