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    Optical pickup device
    1.
    发明申请
    Optical pickup device 审中-公开
    光学拾取装置

    公开(公告)号：US20080049580A1

    公开(公告)日：2008-02-28

    申请号：US11892423

    申请日：2007-08-22

    申请人： Mika Hamaoka ,  Hitoshi Fujii ,  Kenji Nagashima

    发明人： Mika Hamaoka ,  Hitoshi Fujii ,  Kenji Nagashima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup device includes a plurality of light sources for emitting light beams having different wavelengths; an objective lens for focusing the light beams emitted from the light sources on a recording surface of an optical recording medium; and a photo detector for receiving the light beams reflected from the recording surface. The light beams emitted from the light sources include a first light beam and a second light beam having wavelengths different from each other, the first light beam is incident on the objective lens with a finite system, and the second light beam is incident on the objective lens with an infinite system, paths through which the reflected light of the first light beam and the second light beam reach the photo detector are common to each other, and a hologram element for compensating a focal position in an optical axis direction of one of the first light beam and the second light beam is disposed at a position through which only the reflected light beams pass and which is in front of the photo detector.

    摘要翻译： 光拾取装置包括用于发射具有不同波长的光束的多个光源; 用于将从光源发射的光束聚焦在光学记录介质的记录表面上的物镜; 以及用于接收从记录表面反射的光束的光电检测器。 从光源发射的光束包括具有彼此不同波长的第一光束和第二光束，第一光束以有限的系统入射到物镜上，并且第二光束入射到物镜上 具有无限系统的透镜，第一光束和第二光束的反射光到达光电检测器的路径是共同的，以及全息元件，用于补偿光源中的一个的光轴方向上的焦点位置 第一光束和第二光束设置在只有反射光束通过的位置，并且位于光检测器的前面。

    Optical pickup device
    2.
    发明申请
    Optical pickup device 审中-公开
    光学拾取装置

    公开(公告)号：US20080049582A1

    公开(公告)日：2008-02-28

    申请号：US11892549

    申请日：2007-08-23

    申请人： Ken Nishioka ,  Hitoshi Fujii ,  Kenji Nagashima

    发明人： Ken Nishioka ,  Hitoshi Fujii ,  Kenji Nagashima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1353 ,  G11B7/1367 ,  G11B7/1369 ,  G11B7/13925 ,  G11B2007/0006

    摘要： An optical pickup device includes a spherical aberration compensating element which can compensate the spherical aberration of a light beam for a BD or a CD, and a phase shift element which can compensate the spherical aberration of a light beam for a DVD. In the spherical aberration compensating element, a first region which can compensate the spherical aberration of a light beam for a CD by diffraction and diffusion, and a second region which is formed to surround the first region and can compensate the spherical aberration of a light beam for a BD by changing phase distribution, are formed. Functions of the first region and the second region can be electrically controlled in ON-OFF manner.

    摘要翻译： 一种光学拾取装置包括可以补偿BD或CD的光束的球面像差的球面像差补偿元件以及可补偿DVD光束的球面像差的相移元件。 在球面像差补偿元件中，可以通过衍射和扩散补偿CD的光束的球面像差的第一区域和形成为围绕第一区域并可以补偿光束的球面像差的第二区域 通过改变相位分布形成BD。 可以以ON-OFF的方式对第一区域和第二区域的功能进行电控制。

    Variable-shape mirror, optical pickup therewith, and method for fabricating a variable-shape mirror
    3.
    发明申请
    Variable-shape mirror, optical pickup therewith, and method for fabricating a variable-shape mirror 审中-公开
    可变形镜，其光拾取器及可变形镜的制造方法

    公开(公告)号：US20070041108A1

    公开(公告)日：2007-02-22

    申请号：US11507663

    申请日：2006-08-22

    申请人： Kenji Nagashima ,  Hitoshi Fujii ,  Fuminori Tanaka ,  Susumu Sugiyama ,  Akira Ishii ,  Katsuhiko Tanaka ,  Wataru Kuze

    发明人： Kenji Nagashima ,  Hitoshi Fujii ,  Fuminori Tanaka ,  Susumu Sugiyama ,  Akira Ishii ,  Katsuhiko Tanaka ,  Wataru Kuze

    IPC分类号： G02B5/08

    CPC分类号： G02B26/0825 ,  G11B7/1362 ,  G11B7/13927

    摘要： A variable-shape mirror has a support substrate, a mirror portion that faces the support substrate and that has a mirror surface on the side thereof opposite to the side thereof facing the support substrate, a plurality of fixing portions that fix the mirror portion to the support substrate, and a plurality of driving portions that deform the mirror surface by expanding and contracting between the support substrate and the mirror portion. On the support substrate, elevations are formed to serve as bonding surfaces bonded to the fixing portions, as electrodes bonded to the driving portions to feed voltages thereto, and as conductors electrically connected to the electrodes.

    摘要翻译： 可变形反射镜具有支撑基板，与支撑基板相对的镜面部分，其在与其面向支撑基板的一侧相对的一侧具有镜面，多个固定部分将镜部分固定到 以及通过在支撑基板和反射镜部分之间伸缩而使镜面变形的多个驱动部。 在支撑基板上，形成凸起，作为结合到固定部分的接合表面，作为结合到驱动部分的电极以馈送电压，以及作为电连接到电极的导体。

    Spherical aberration correcting device
    7.
    发明申请
    Spherical aberration correcting device 审中-公开
    球面像差校正装置

    公开(公告)号：US20080049572A1

    公开(公告)日：2008-02-28

    申请号：US11892424

    申请日：2007-08-22

    申请人： Mitsuyoshi Sasabe ,  Hitoshi Fujii ,  Kenji Nagashima

    发明人： Mitsuyoshi Sasabe ,  Hitoshi Fujii ,  Kenji Nagashima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/13925 ,  G11B7/1275 ,  G11B7/1369 ,  G11B2007/0006

    摘要： A spherical aberration correcting device includes liquid crystal, a first transparent electrode and a second transparent electrode. The first transparent electrode works as a common electrode. The second transparent electrode has different electrode patterns for a first region and a second region that surrounds the first region. The electrode pattern in the first region is a concentric interference pattern. The electrode pattern in the second region has a plurality of concentric regions. The plurality of concentric regions can be supplied potentials independently.

    摘要翻译： 球面像差校正装置包括液晶，第一透明电极和第二透明电极。 第一透明电极用作公共电极。 第二透明电极具有用于第一区域的不同电极图案和围绕第一区域的第二区域。 第一区域中的电极图案是同心干涉图案。 第二区域中的电极图案具有多个同心区域。 可以独立地提供多个同心区域。

    Variable-shape mirror and optical pickup device therewith
    8.
    发明授权
    Variable-shape mirror and optical pickup device therewith 失效
    可变形镜和光拾取装置

    公开(公告)号：US07303296B2

    公开(公告)日：2007-12-04

    申请号：US11406497

    申请日：2006-04-19

    申请人： Kenji Nagashima ,  Hitoshi Fujii ,  Fuminori Tanaka ,  Susumu Sugiyama ,  Akira Ishii ,  Katsuhiko Tanaka ,  Wataru Kuze

    发明人： Kenji Nagashima ,  Hitoshi Fujii ,  Fuminori Tanaka ,  Susumu Sugiyama ,  Akira Ishii ,  Katsuhiko Tanaka ,  Wataru Kuze

    IPC分类号： G02B7/182

    CPC分类号： G02B26/0825 ,  G02B7/1822

    摘要： In a variable-shape mirror (1) of which the shape of the mirror surface can be varied, four piezoelectric elements (4) are sandwiched between a support base (2) and a mirror portion (3), and are arranged symmetrically in cross-shaped directions. The piezoelectric elements (4) are bonded to the mirror portion (3), and serve both to vary the shape of the mirror portion (3) by being driven and to fix the mirror portion (3) to the support base (2). Support portions (5) are arranged one inside each of the piezoelectric elements (4). With this structure, a small movement that the piezoelectric elements (4) produce when driven can be converted into a large movement of the mirror portion (3).

    摘要翻译： 在镜面形状可变的可变形反射镜（1）中，四个压电元件（4）夹在支撑基座（2）和反射镜部分（3）之间，并且十字 形状的方向。 压电元件（4）结合到镜部分（3），并且通过驱动使镜子部分（3）的形状改变并且将镜部分（3）固定到支撑基座（2）上。 每个压电元件（4）内的一个支撑部（5）。 利用这种结构，压电元件（4）在驱动时产生的小的运动可以被转换成镜部分（3）的大的运动。

    Variable-shape mirror and optical pickup device therewith
    10.
    发明申请
    Variable-shape mirror and optical pickup device therewith 失效
    可变形镜和光拾取装置

    公开(公告)号：US20060256456A1

    公开(公告)日：2006-11-16

    申请号：US11406497

    申请日：2006-04-19

    申请人： Kenji Nagashima ,  Hitoshi Fujii ,  Fuminori Tanaka ,  Susumu Sugiyama ,  Akira Ishii ,  Katsuhiko Tanaka ,  Wataru Kuze

    发明人： Kenji Nagashima ,  Hitoshi Fujii ,  Fuminori Tanaka ,  Susumu Sugiyama ,  Akira Ishii ,  Katsuhiko Tanaka ,  Wataru Kuze

    IPC分类号： G02B5/08 ,  G02B7/182

    CPC分类号： G02B26/0825 ,  G02B7/1822

    摘要： In a variable-shape mirror (1) of which the shape of the mirror surface can be varied, four piezoelectric elements (4) are sandwiched between a support base (2) and a mirror portion (3), and are arranged symmetrically in cross-shaped directions. The piezoelectric elements (4) are bonded to the mirror portion (3), and serve both to vary the shape of the mirror portion (3) by being driven and to fix the mirror portion (3) to the support base (2). Support portions (5) are arranged one inside each of the piezoelectric elements (4). With this structure, a small movement that the piezoelectric elements (4) produce when driven can be converted into a large movement of the mirror portion (3).

    摘要翻译： 在镜面形状可变的可变形反射镜（1）中，四个压电元件（4）夹在支撑基座（2）和反射镜部分（3）之间，并且十字 形状的方向。 压电元件（4）结合到镜部分（3），并且通过驱动使镜子部分（3）的形状改变并且将镜部分（3）固定到支撑基座（2）上。 每个压电元件（4）内的一个支撑部（5）。 利用这种结构，压电元件（4）在驱动时产生的小的运动可以被转换成镜部分（3）的大的运动。