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1.发明授权Polyarylene sulfide resin composition and optical pick-up parts formed from the same 失效聚芳硫醚树脂组合物和由其组成的光学拾取部件
公开(公告)号：US5599864A
公开(公告)日：1997-02-04
申请号：US316470
申请日：1994-10-03
申请人： Shogo Ogawa , Hajime Hata , Ikuo Kasuga , Hiromasa Marumo , Masamichi Hayakawa
发明人： Shogo Ogawa , Hajime Hata , Ikuo Kasuga , Hiromasa Marumo , Masamichi Hayakawa
CPC分类号： C08K3/38 , C08K3/0033 , C08K7/04
摘要： A polyarylene sulfide resin composition having an excellent fluidability and a good moldability is disclosed. The resin composition is useful as a material for an optical pick-up part which has a high reliability and a high tenacity and does not generate deviation of an optical axis with changes in environmental conditions such as temperature and humidity. The polyarylene sulfide resin composition comprises, as main components, a polyarylene sulfide resin, a fibrous filler and a particulate filler, and, optionally, a silane coupling agent and an alicyclic hydrocarbon.
摘要翻译： 公开了具有优异的流动性和良好成型性的聚芳硫醚树脂组合物。 该树脂组合物可用作光学拾取部件的材料，其具有高可靠性和高韧性，并且不会随温度和湿度等环境条件的变化而产生光轴的偏差。 作为主要成分，聚芳硫醚树脂组合物包括聚芳硫醚树脂，纤维状填料和颗粒填料，以及任选的硅烷偶联剂和脂环族烃。
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公开(公告)号：US5541898A
公开(公告)日：1996-07-30
申请号：US538836
申请日：1995-10-04
申请人： Ikuo Kasuga , Toru Kamada , Fumio Kobayashi , Yasuyuki Nakahara
发明人： Ikuo Kasuga , Toru Kamada , Fumio Kobayashi , Yasuyuki Nakahara
CPC分类号： G11B7/0935 , G11B7/22
摘要： An objective lens-driving used in the optical pickup of an optical disk drive. The device comprises an objective lens holder for holding an objective lens, a sheet coil, and a counterbalance mounted on the opposite side of the objective lens. The sheet coil comprises an insulating sheet on which focusing helical coil patterns and tracking helical coil patterns are juxtaposed. The holder has sheet-holding portions of an arc-shaped cross section. The focusing and tracking coil patterns are formed on the curved surfaces of the sheet-holding portions. Focusing magnets are mounted opposite to the focusing coil patterns. Tracking magnets are mounted opposite to the tracking coil patterns.
摘要翻译： 用于光盘驱动器的光学拾取器中的物镜驱动。 该装置包括用于保持物镜，片状线圈和安装在物镜的相对侧上的平衡物的物镜保持器。 片状线圈包括绝缘片，聚焦螺旋线圈图案和跟踪螺旋线圈图案并置在该绝缘片上。 保持器具有弧形截面的片材保持部分。 聚焦跟踪线圈图案形成在片材保持部分的曲面上。 聚焦磁体与聚焦线圈图案相对安装。 跟踪磁体安装在跟踪线圈图案的相对侧。
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公开(公告)号：US5488594A
公开(公告)日：1996-01-30
申请号：US110960
申请日：1993-08-24
申请人： Fumio Kobayashi , Ikuo Kasuga , Akira Miyamae
发明人： Fumio Kobayashi , Ikuo Kasuga , Akira Miyamae
CPC分类号： G11B7/22
摘要： Disclosed is an objective actuator comprising an object lens holder for holding an object lens, the object lens holder being mounted on a support shaft in a manner that the object lens holder is slidable along and rotatable about the support shaft; a drive coil mounted on the object lens holder; first yoke provided with drive magnets, the first yoke being mounted in such manner that the drive magnets confront with the drive coil, the first yoke having a center hole which is larger in diameter than the support shaft, the first yoke and the support shaft are integrally connected by molding; and shaft holding member defined by filling a resin at the center hole of the first yoke, the shaft holding member including a base portion.
摘要翻译： 公开了一种包括用于保持物镜的物镜保持器的物镜致动器，所述物镜保持器以使得所述物镜保持器能够沿所述支撑轴可滑动并且可围绕所述支撑轴旋转的方式安装在支撑轴上; 安装在所述物镜保持器上的驱动线圈; 设置有驱动磁体的第一磁轭，第一磁轭以这样的方式安装，使得驱动磁体与驱动线圈相对，第一磁轭具有直径比支撑轴大的中心孔，第一磁轭和支撑轴是 通过模制一体连接; 以及通过在第一轭的中心孔填充树脂而限定的轴保持构件，该轴保持构件包括基部。
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公开(公告)号：US06584061B2
公开(公告)日：2003-06-24
申请号：US09728087
申请日：2000-12-04
IPC分类号： G11B700
CPC分类号： G11B7/1356 , G11B7/1362 , G11B2007/0006
摘要： An optical system of an optical pick-up device 1 comprises a half mirror 13 and a prism 14 which serve to guide a first laser beam L1 for a CD and a second laser beam L2 for a DVD to the optical recording medium side and a common light receiving element 19. The half mirror 13 is set to have a ratio of a reflectance to a transmittance of 5:1 in the first laser beam L1 to be a P polarized light and the prism 14 is set to have a ratio of a reflectance to a transmittance of 1:3 in the first laser beam L2 having a P polarization component and an S polarization component mixed. The first laser beam for a CD can be guided to the optical recording medium without a light quantity loss. At the same time, a return light Lr can be sent in a sufficient light quantity back to the light receiving element 19 for servo signal generation. Therefore, it is possible to implement a reliable CD recording operation by using the first laser beam.
摘要翻译： 光学拾取装置1的光学系统包括半反射镜13和棱镜14，其用于将用于CD的第一激光束L1和用于DVD的第二激光束L2引导到光学记录介质侧，并且公共 受光元件19.半反射镜13被设定为在第一激光束L1中的反射率与5:1的透射率之比为P偏振光，棱镜14被设定为具有反射率 在具有P偏振分量和S偏振分量混合的第一激光束L2中透射率为1:3。 用于CD的第一激光束可以被引导到光学记录介质而没有光量损失。 同时，返回光Lr可以以足够的光量发送回光接收元件19，用于产生伺服信号。 因此，可以通过使用第一激光束来实现可靠的CD记录操作。
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公开(公告)号：US4968874A
公开(公告)日：1990-11-06
申请号：US357340
申请日：1989-05-25
申请人： Ikuo Kasuga
发明人： Ikuo Kasuga
CPC分类号： G11B7/1398 , G02B27/0025 , G02B3/02 , G11B7/1378
摘要： An optical pickup using a parallel plane plate type beam splitter is disclosed, in which the astigmatism produced by the fact that the light beam passes through the beam splitter is compensated by means of a correcting lens having anisotropically curved surfaces.
摘要翻译： 公开了一种使用平行平板式分束器的光学拾取器，其中通过具有各向异性弯曲表面的校正透镜补偿由光束通过分束器的事实产生的象散。
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公开(公告)号：US06798819B1
公开(公告)日：2004-09-28
申请号：US09512313
申请日：2000-02-24
申请人： Tohru Hotta , Ikuo Kasuga
发明人： Tohru Hotta , Ikuo Kasuga
IPC分类号： H01S308
CPC分类号： G11B7/1362 , G11B7/22
摘要： A deflector deflects laser light emitted from a laser light emitting device. A lens driver moves an objective lens for conversing the laser light deflected by the deflector onto an optical recording disk in a focusing direction and a tracking direction thereof. A frame member supports the laser light emitting device, the deflector and the lens driver. The deflector is positioned such that the center of an intensity distribution of the laser light is aligned with an optical axis of the objective lens.
摘要翻译： 偏转器偏转从激光发射装置发射的激光。 透镜驱动器使物镜移动，以将由偏转器偏转的激光转向聚焦方向和跟踪方向的光记录盘上。 框架构件支撑激光发射装置，偏转器和透镜驱动器。 偏转器被定位成使得激光的强度分布的中心与物镜的光轴对准。
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公开(公告)号：US06369963B1
公开(公告)日：2002-04-09
申请号：US09611273
申请日：2000-07-06
申请人： Tohru Hotta , Ikuo Kasuga , Katsushige Yanagisawa
发明人： Tohru Hotta , Ikuo Kasuga , Katsushige Yanagisawa
IPC分类号： G02B702
CPC分类号： G11B7/082 , G02B7/10 , G11B7/08582
摘要： An optical pickup apparatus has an objective lens, a lens holder that mounts the objective lens, a main frame holding the lens holder, and first and second inclination angle adjusting mechanism for adjusting angles of inclination of the objective lens. A main shaft guide frame is mounted on one side of the main frame. A main shaft mounted on the main shaft guide frame for guiding the objective lens in a radial direction of an optical disc. An auxiliary shaft guide frame is mounted on another side of the main frame. An auxiliary shaft is mounted on the auxiliary shaft guide groove to allow the objective lens to slidably move in parallel with the main shaft. The first inclination angle adjusting mechanism has a first bearing shaft for rotatably supporting the main shaft guide frame about a first axis with respect to the main frame. The main shaft defines a second axis extending generally in parallel with the main shaft and perpendicular to the first axis. The second inclination angle adjusting mechanism has a second bearing shaft for rotatably supporting an auxiliary shaft guide frame with respect to the main frame about a third axis that is located between the main shaft and the auxiliary shaft and extends in parallel with the second axis.
摘要翻译： 光学拾取装置具有物镜，安装物镜的透镜保持架，保持透镜保持架的主框架，以及用于调节物镜的倾斜角度的第一和第二倾斜角度调节机构。 主轴引导框架安装在主框架的一侧。 安装在主轴引导框架上的主轴，用于在光盘的径向方向上引导物镜。 辅助轴引导框架安装在主框架的另一侧。 辅助轴安装在辅助轴引导槽上，以允许物镜与主轴平行地滑动移动。 第一倾斜角调节机构具有第一轴承轴，用于相对于主框架围绕第一轴线可旋转地支撑主轴引导框架。 主轴限定大致平行于主轴并垂直于第一轴线延伸的第二轴线。 第二倾斜角调节机构具有第二轴承轴，用于相对于主框架围绕位于主轴和辅助轴之间并与第二轴线平行延伸的第三轴线可旋转地支撑辅助轴引导框架。
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8.发明授权Optical pickup device with wedge shaped and concave lens for correcting a coma and astigmatism 失效具有楔形和凹透镜的光学拾取装置，用于校正昏迷和散光
公开(公告)号：US5496993A
公开(公告)日：1996-03-05
申请号：US95193
申请日：1993-07-23
申请人： Ikuo Kasuga
发明人： Ikuo Kasuga
CPC分类号： G02B27/0025 , G02B3/06 , G02B5/04 , G11B7/1365 , G11B7/1381
摘要： Disclosed is an optical pickup device comprising a light source for irradiating a light beam onto an object from a light source, a half mirror for introducing said light beam reflected by the object to an optical detector; and a wedge-shaped photosensitive element, disposed between said half mirror and said optical detector, for cancelling out a coma produced by said half mirror.
摘要翻译： 公开了一种光拾取装置，包括用于将光束从光源照射到物体上的光源，用于将由物体反射的所述光束引入光检测器的半反射镜; 以及设置在所述半反射镜和所述光学检测器之间的楔形感光元件，用于消除由所述半反射镜产生的彗差。
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公开(公告)号：US5517362A
公开(公告)日：1996-05-14
申请号：US230105
申请日：1994-04-20
申请人： Ikuo Kasuga , Tatuki Wade , Akira Miyamae
发明人： Ikuo Kasuga , Tatuki Wade , Akira Miyamae
摘要： An optical pickup device operates to irradiate a disk with an optical beam from a light source by an objective lens and to detect the beam reflected from the disk by a light receiving element. A frame is provided for said device having an optical element fixed therein. The frame is formed with a press-fit hole into which the light source is press-fit and fixed so as to adjust the press-fit depth, thereby adjusting alignment between the optical pickup device and the disk.
摘要翻译： 光学拾取装置用于通过物镜照射来自光源的光束并通过光接收元件检测从光盘反射的光束。 为具有固定在其中的光学元件的所述装置提供框架。 框架形成有压配合孔，光源被压入并固定在该压配合孔中，以调节压合深度，从而调节光学拾取装置与盘之间的对准。
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公开(公告)号：US4962999A
公开(公告)日：1990-10-16
申请号：US245416
申请日：1988-09-16
申请人： Ikuo Kasuga
发明人： Ikuo Kasuga
IPC分类号： G11B7/085
CPC分类号： G11B7/08582
摘要： An optical pick-up device is disclosed, in which a bearing member for moving it along a guiding shaft is disposed separately and independently from a base plate and the bearing member can be mounted selectively on one side surface or the rear surface of the base plate.
摘要翻译： 公开了一种光拾取装置，其中用于沿着引导轴移动的轴承构件与基板独立地且独立地设置，并且轴承构件可以选择性地安装在基板的一个侧表面或后表面 。
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