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1. 发明授权

US08254219B2 Objective lens actuator and optical pickup device having the same 失效
标题翻译：物镜致动器和具有其的光学拾取装置
公开(公告)号：US08254219B2
公开(公告)日：2012-08-28
申请号：US12010213
申请日：2008-01-22
申请人： Sotaro Hayashi , Ryozo Hosoda
发明人： Sotaro Hayashi , Ryozo Hosoda
IPC分类号： G11B7/00
CPC分类号： G11B7/22 , G11B7/082 , G11B7/1374 , G11B2007/0006
摘要： An objective lens actuator includes a plurality of objective lenses, a first lens holder on which the plurality of objective lenses are mounted, and a drive mechanism that drives the first lens holder. At least one of the plurality of objective lenses is mounted on the first lens holder while being held by the second lens holder. Formed on the second lens holder are a slide part which slides the second lens holder with respect to the first lens holder at a time of assembly, and a projection arranged outward of the slide part and protruding toward the first lens holder with the second lens holder being mounted on the first lens holder. The lens holder has a groove formed therein where the projection is securely adhered.
摘要翻译：物镜致动器包括多个物镜，其上安装有多个物镜的第一透镜保持架以及驱动第一透镜架的驱动机构。多个物镜中的至少一个被第二透镜保持器固定在第一透镜架上。形成在第二透镜保持器上的是在组装时相对于第一透镜保持件滑动第二透镜保持件的滑动部分，以及布置在滑动部分的外侧并且朝向第一透镜保持器突出的突起，其具有第二透镜保持器安装在第一透镜架上。透镜架具有形成在其中的凹槽，其中凸起被牢固地粘附。

2. 发明授权

US08072869B2 Optical pickup having an aberration correction function 有权
标题翻译：具有像差校正功能的光学拾取器
公开(公告)号：US08072869B2
公开(公告)日：2011-12-06
申请号：US12289315
申请日：2008-10-24
申请人： Ryozo Hosoda , Tetsuya Yoshida
发明人： Ryozo Hosoda , Tetsuya Yoshida
IPC分类号： G11B7/135 , G02B7/04
CPC分类号： G11B7/13927 , G11B7/0948 , G11B7/1378 , G11B2007/13727
摘要： A spherical aberration correction mechanism includes a plurality of aberration correction lenses, a movable portion in which the aberration correction lens is held, a fixed portion in which the movable portion is arranged so as to be slidable as well as the aberration correction lens is held, a shaft supporting the movable portion so as to be rotatable about the axis as well as to be slidable in the axial direction, a feed screw having spiral grooves, an engaging portion having convex portions to be engaged with the spiral grooves from one direction and a coil spring fitted to the outside of the shaft, pressing the movable portion in the axial direction. The coil spring has a rotation prevention portion engaged with the fixed portion and a torque biasing portion engaged with the movable portion, and the coil spring is installed in a twisted state in advance.
摘要翻译：球面像差校正机构包括多个像差校正透镜，其中保持有像差校正透镜的可移动部分，其中可移动部分被布置为可滑动的固定部分以及像差校正透镜被保持，支撑所述可动部以能够沿轴向旋转并且能够沿轴向滑动的轴，具有螺旋槽的进给螺杆，具有与所述螺旋槽从一个方向接合的凸部的接合部和螺旋弹簧安装在轴的外侧，沿着轴向按压可动部。螺旋弹簧具有与固定部分接合的防旋转部分和与可动部分接合的扭矩施力部分，螺旋弹簧预先以扭转状态安装。

3. 发明授权

US07903506B2 Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US07903506B2
公开(公告)日：2011-03-08
申请号：US11894780
申请日：2007-08-21
申请人： Ryozo Hosoda , Kazuhiro Takahashi , Shinya Hatano , Hiromasa Sasaoka
发明人： Ryozo Hosoda , Kazuhiro Takahashi , Shinya Hatano , Hiromasa Sasaoka
IPC分类号： G11B7/00
CPC分类号： G11B7/22 , G02B7/003 , G02B27/0025 , G02B27/62 , G11B7/082 , G11B7/121 , G11B2007/0006
摘要： The present invention provides an optical pickup device capable of properly suppressing coma aberration which occurs due to a relative tilt error between objective lenses. The optical pickup device includes: first and second objective lenses having different optical characteristics; a lens holder provided with first and second lens receiving cylindrical parts to which the first and second objective lenses are attached so that distance from the first objective lens to an optical recording medium becomes shorter than distance from the second objective lens to the optical recording medium without overlapping the objective lenses; and a buffer member formed in a cylindrical shape so as to surround the periphery of the first objective lens, and having a projection for preventing collision between the first objective lens and the optical recording medium, the projection being provided at an end on the optical recording medium side. In the optical pickup device, the second objective lens is fixed in the lens receiving cylindrical part, and a lens tilt adjusting and holding structure for holding the first objective lens so that tilt of the first objective lens can be adjusted is added to the buffer member and the first lens receiving cylindrical part.
摘要翻译：本发明提供了能够适当地抑制由于物镜之间的相对倾斜误差而发生的彗形像差的光拾取装置。光学拾取装置包括：具有不同光学特性的第一和第二物镜; 具有第一和第二透镜容纳圆柱形部件的透镜保持器，第一和第二物镜附接到该第一和第二透镜接收圆柱形部分，使得从第一物镜到光学记录介质的距离变得短于距离第二物镜到光学记录介质的距离，而没有重叠物镜; 以及缓冲构件，其形成为围绕所述第一物镜的周围的圆筒形状，并且具有用于防止所述第一物镜与所述光记录介质之间的碰撞的突起，所述突起设置在所述光学记录中等在光学拾取装置中，第二物镜被固定在透镜接收圆柱形部分中，并且用于保持第一物镜的透镜倾斜调节和保持结构使得能够调节第一物镜的倾斜可以被添加到缓冲构件并且第一透镜接收圆柱形部分。

4. 发明申请

US20080068960A1 Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US20080068960A1
公开(公告)日：2008-03-20
申请号：US11894780
申请日：2007-08-21
申请人： Ryozo Hosoda , Kazuhiro Takahashi , Shinya Hatano , Hiromasa Sasaoka
发明人： Ryozo Hosoda , Kazuhiro Takahashi , Shinya Hatano , Hiromasa Sasaoka
IPC分类号： G11B7/00
CPC分类号： G11B7/22 , G02B7/003 , G02B27/0025 , G02B27/62 , G11B7/082 , G11B7/121 , G11B2007/0006
摘要： The present invention provides an optical pickup device capable of properly suppressing coma aberration which occurs due to a relative tilt error between objective lenses. The optical pickup device includes: first and second objective lenses having different optical characteristics; a lens holder provided with first and second lens receiving cylindrical parts to which the first and second objective lenses are attached so that distance from the first objective lens to an optical recording medium becomes shorter than distance from the second objective lens to the optical recording medium without overlapping the objective lenses; and a buffer member formed in a cylindrical shape so as to surround the periphery of the first objective lens, and having a projection for preventing collision between the first objective lens and the optical recording medium, the projection being provided at an end on the optical recording medium side. In the optical pickup device, the second objective lens is fixed in the lens receiving cylindrical part, and a lens tilt adjusting and holding structure for holding the first objective lens so that tilt of the first objective lens can be adjusted is added to the buffer member and the first lens receiving cylindrical part.
摘要翻译：本发明提供了能够适当地抑制由于物镜之间的相对倾斜误差而发生的彗形像差的光拾取装置。光学拾取装置包括：具有不同光学特性的第一和第二物镜; 具有第一和第二透镜容纳圆柱形部件的透镜保持器，第一和第二物镜附接到该第一和第二透镜接收圆柱形部分，使得从第一物镜到光学记录介质的距离变得短于距离第二物镜到光学记录介质的距离，而没有重叠物镜; 以及缓冲构件，其形成为围绕所述第一物镜的周围的圆筒形状，并且具有用于防止所述第一物镜与所述光记录介质之间的碰撞的突起，所述突起设置在所述光学记录中等在光学拾取装置中，第二物镜被固定在透镜接收圆柱形部分中，并且用于保持第一物镜的透镜倾斜调节和保持结构使得能够调节第一物镜的倾斜可以被添加到缓冲构件并且第一透镜接收圆柱形部分。

5. 发明授权

US08098563B2 Objective lens actuator 失效
标题翻译：物镜执行器
公开(公告)号：US08098563B2
公开(公告)日：2012-01-17
申请号：US12707405
申请日：2010-02-17
申请人： Ryozo Hosoda , Togo Kojima , Sotaro Hayashi
发明人： Ryozo Hosoda , Togo Kojima , Sotaro Hayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/0935 , G11B7/121 , G11B7/22
摘要： An objective lens actuator includes a lens holder, a protector holder, and a protector. The lens holder in which the objective lens is provided has a face configured to oppose the disc. The protector holder is provided on the face of the lens holder. The protector is formed with an opening defined by a first inner face, a second inner face and a bottom face between the first inner face and the second inner face. The protector has a parallelepiped shape elongating in a first direction parallel to the disc. A part of the protector is inserted in the opening so as to contact the first inner face and the second inner face and to extend from the bottom face toward the disc. A first distance between an end of the protector in a second direction in which the protector extends toward the disc and the disc is shorter than a second distance between the objective lens and the disc. A gap is formed between an end of the opening and an end of the protector in the first direction.
摘要翻译：物镜致动器包括透镜保持器，保护器保持器和保护器。设置有物镜的透镜架具有配置成与盘相对的面。保护器支架设置在透镜架的表面上。保护器形成有由第一内表面，第二内表面和第一内表面和第二内表面之间的底面限定的开口。保护器具有沿平行于盘的第一方向延伸的平行六面体形状。保护器的一部分插入到开口中，以便接触第一内表面和第二内表面并且从底面向盘延伸。在保护器朝向盘延伸的第二方向上的保护器的端部与盘之间的第一距离比物镜和盘之间的第二距离短。在开口的端部和保护器的端部之间沿第一方向形成间隙。

6. 发明申请

US20090284852A1 LENS DRIVE MECHANISM AND OPTICAL PICKUP HAVING SAME 有权
标题翻译：镜头驱动机构和具有相同功能的光学拾取器
公开(公告)号：US20090284852A1
公开(公告)日：2009-11-19
申请号：US12463670
申请日：2009-05-11
申请人： Ryozo HOSODA , Tetsuya Yoshida , Shinya Hatano
发明人： Ryozo HOSODA , Tetsuya Yoshida , Shinya Hatano
IPC分类号： G02B7/04 , G02B7/02
CPC分类号： G11B7/1376 , G11B7/0927
摘要： A lens drive mechanism includes a drive source; a lead screw that is connected to the drive source and rotated by operation of the drive source; a nut member that screws on the lead screw and moves as the lead screw rotates; a lens hold portion that is so disposed as to move as the nut member moves and hold a lens; a guide member that guides the lens hold portion to move in the same direction as that of movement of the nut member; and a leaf spring member that if the nut member is situated near one end of a thread portion of the lead screw, pressurizes the nut member toward the other end of the thread portion of the lead screw.
摘要翻译：透镜驱动机构包括驱动源; 导螺杆，其连接到驱动源并通过驱动源的操作而旋转; 一个螺母，螺丝拧在导螺杆上，随着导螺杆的旋转而移动; 透镜保持部，其设置成随着螺母构件移动并保持透镜而移动; 引导构件，其引导透镜保持部沿与螺母构件的移动相同的方向移动; 以及板簧构件，如果所述螺母构件位于所述导螺杆的螺纹部的一端附近，则将所述螺母构件朝向所述丝杠的螺纹部的另一端加压。

7. 发明申请

US20090109819A1 Optical pickup 有权
标题翻译：光学拾音
公开(公告)号：US20090109819A1
公开(公告)日：2009-04-30
申请号：US12289315
申请日：2008-10-24
申请人： Ryozo Hosoda , Tetsuya Yoshida
发明人： Ryozo Hosoda , Tetsuya Yoshida
IPC分类号： G11B7/00
CPC分类号： G11B7/13927 , G11B7/0948 , G11B7/1378 , G11B2007/13727
摘要： A spherical aberration correction mechanism includes a plurality of aberration correction lenses, a movable portion in which the aberration correction lens is held, a fixed portion in which the movable portion is arranged so as to be slidable as well as the aberration correction lens is held, a shaft supporting the movable portion so as to be rotatable about the axis as well as to be slidable in the axial direction, a feed screw having spiral grooves, an engaging portion having convex portions to be engaged with the spiral grooves from one direction and a coil spring fitted to the outside of the shaft, pressing the movable portion in the axial direction. The coil spring has a rotation prevention portion engaged with the fixed portion and a torque biasing portion engaged with the movable portion, and the coil spring is installed in a twisted state in advance.
摘要翻译：球面像差校正机构包括多个像差校正透镜，其中保持有像差校正透镜的可移动部分，其中可移动部分被布置为可滑动的固定部分以及像差校正透镜被保持，支撑所述可动部以能够沿轴向旋转并且能够沿轴向滑动的轴，具有螺旋槽的进给螺杆，具有与所述螺旋槽从一个方向接合的凸部的接合部和螺旋弹簧安装在轴的外侧，沿着轴向按压可动部。螺旋弹簧具有与固定部分接合的防旋转部分和与可动部分接合的扭矩施力部分，螺旋弹簧预先以扭转状态安装。

8. 发明申请

US20080181087A1 Objective lens actuator and optical pickup device having the same 失效
标题翻译：物镜致动器和具有其的光学拾取装置
公开(公告)号：US20080181087A1
公开(公告)日：2008-07-31
申请号：US12010213
申请日：2008-01-22
申请人： Sotaro Hayashi , Ryozo Hosoda
发明人： Sotaro Hayashi , Ryozo Hosoda
IPC分类号： G11B7/135
CPC分类号： G11B7/22 , G11B7/082 , G11B7/1374 , G11B2007/0006
摘要： An objective lens actuator includes a plurality of objective lenses, a first lens holder on which the plurality of objective lenses are mounted, and a drive mechanism that drives the first lens holder. At least one of the plurality of objective lenses is mounted on the first lens holder while being held by the second lens holder. Formed on the second lens holder are a slide part which slides the second lens holder with respect to the first lens holder at a time of assembly, and a projection arranged outward of the slide part and protruding toward the first lens holder with the second lens holder being mounted on the first lens holder. The lens holder has a groove formed therein where the projection is securely adhered.
摘要翻译：物镜致动器包括多个物镜，其上安装有多个物镜的第一透镜保持架以及驱动第一透镜架的驱动机构。多个物镜中的至少一个被第二透镜保持器固定在第一透镜架上。形成在第二透镜保持器上的是在组装时相对于第一透镜保持件滑动第二透镜保持件的滑动部分，以及布置在滑动部分的外侧并且朝向第一透镜保持器突出的突起，其具有第二透镜保持器安装在第一透镜架上。透镜架具有形成在其中的凹槽，其中凸起被牢固地粘附。

9. 发明申请

US20080068975A1 Objective lens actuator and optical pickup device 审中-公开
标题翻译：物镜致动器和光学拾取装置
公开(公告)号：US20080068975A1
公开(公告)日：2008-03-20
申请号：US11898931
申请日：2007-09-17
申请人： Hiromasa Sasaoka , Kazuhiro Takahashi , Ryozo Hosoda , Shinya Hatano
发明人： Hiromasa Sasaoka , Kazuhiro Takahashi , Ryozo Hosoda , Shinya Hatano
IPC分类号： G11B7/00 , G11B7/085
CPC分类号： G11B7/0935 , G11B7/1374 , G11B7/22 , G11B2007/0006
摘要： A first objective lens and a second objective lens which are formed as separate bodies each other are held side by side by a lens holder. The lens holder includes a first lens receiving surface to receive a lower surface of peripheral portion of the first objective lens, and a second lens receiving surface to receive a lower surface of peripheral portion of the second objective lens. The first lens receiving surface and the second lens receiving surface are formed to be coplanar. By this arrangement an optical axis of the first objective lens and an optical axis of the second objective lens become parallel to each other at the same time when the first objective lens is installed on the first lens receiving surface and when the second objective lens is installed on the second lens receiving surface, a relative tilt is automatically solved. By a simple structure of the lens holder the relative tilt between the first objective lens and the second objective lens can be reduced as above described. Further, because of above described structure of the lens holder if one of the objective lenses is a commercial product, a commercial product can be easily utilized.
摘要翻译：形成为分离体的第一物镜和第二物镜由透镜保持器并排地保持。透镜保持器包括：第一透镜接收表面，用于接收第一物镜的周边部分的下表面;以及第二透镜接收表面，用于接收第二物镜的周边部分的下表面。第一透镜接收表面和第二透镜接收表面形成为共面的。通过这种布置，当第一物镜安装在第一透镜接收表面上并且当第二物镜安装时，第一物镜的光轴和第二物镜的光轴在彼此平行的同时在第二透镜接收表面上，相对倾斜自动解决。通过透镜架的简单结构，可以如上所述地减小第一物镜和第二物镜之间的相对倾斜度。此外，由于如果物镜中的一个是商业产品，则透镜保持架的上述结构可以容易地使用商业产品。

10. 发明授权

US07924688B2 Optical pickup and manufacturing method for optical pickup 失效
标题翻译：光拾取器的光学拾取和制造方法
公开(公告)号：US07924688B2
公开(公告)日：2011-04-12
申请号：US11905626
申请日：2007-10-02
申请人： Shinya Hatano , Kazuhiro Takahashi , Hiromasa Sasaoka , Ryozo Hosoda
发明人： Shinya Hatano , Kazuhiro Takahashi , Hiromasa Sasaoka , Ryozo Hosoda
IPC分类号： G11B7/135
CPC分类号： G11B7/22 , G11B7/1374 , G11B2007/0006
摘要： An optical pickup includes a first objective lens, a second objective lens having a numerical aperture different from that of the first objective lens, and an objective lens holder that holds the objective lenses. The first objective lens is attached to the objective lens holder via a spacer. The objective lens holder has a first fixture hole that receives the spacer with the first objective lens and a second fixture hole that receives the second objective lens. The first fixture hole is provided with a spacer supporting portion in which the spacer is inserted in a rotatable manner.
摘要翻译：光拾取器包括第一物镜，具有不同于第一物镜的数值孔径的第二物镜和保持物镜的物镜保持器。第一物镜通过间隔件附接到物镜支架。物镜支架具有第一固定孔，其接收具有第一物镜的间隔物和接收第二物镜的第二固定孔。第一固定孔设置有间隔件支撑部分，其中间隔件以可旋转的方式插入其中。

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