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    FINE PARTICLE MEASURING DEVICE
    3.
    发明申请
    FINE PARTICLE MEASURING DEVICE 有权
    细粒度测量装置

    公开(公告)号：US20120018650A1

    公开(公告)日：2012-01-26

    申请号：US13180740

    申请日：2011-07-12

    申请人： Mitsuru Toishi ,  Katsuhiro Seo ,  Koji Takasaki ,  Shinji Yamada ,  Atsushi Fukumoto

    发明人： Mitsuru Toishi ,  Katsuhiro Seo ,  Koji Takasaki ,  Shinji Yamada ,  Atsushi Fukumoto

    IPC分类号： G01N21/64

    CPC分类号： G01N21/645 ,  G01N15/147 ,  G01N2021/4709 ,  G01N2021/6471

    摘要： A fine particle measuring device includes an optical filter that is divided into a plurality of areas and is disposed on an optical path on which light emitted from a fine particle, which is irradiated with light, is guided to an optical detector. In the fine particle measuring device, the optical filter includes a first area having wavelength selectivity by which the first area blocks reflected light from the fine particle and an unnecessary scattered light component and transmits fluorescence, and a second area that is disposed around at least the first area and has no wavelength selectivity so as to transmit a necessary scattered light component.

    摘要翻译： 微粒测量装置包括被分成多个区域的光学滤波器，并且设置在从被照射光的微粒发射的光被引导到光学检测器的光路上。 在微粒测量装置中，滤光器包括具有波长选择性的第一区域，第一区域通过该第一区域阻挡来自细颗粒的反射光和不需要的散射光分量并透射荧光;以及第二区域，其设置在至少 第一区域并且没有波长选择性以便传输必要的散射光分量。

    Fine particle measuring device
    4.
    发明授权
    Fine particle measuring device 有权
    精细粒子测量装置

    公开(公告)号：US08466435B2

    公开(公告)日：2013-06-18

    申请号：US13180740

    申请日：2011-07-12

    申请人： Mitsuru Toishi ,  Katsuhiro Seo ,  Koji Takasaki ,  Shinji Yamada ,  Atsushi Fukumoto

    发明人： Mitsuru Toishi ,  Katsuhiro Seo ,  Koji Takasaki ,  Shinji Yamada ,  Atsushi Fukumoto

    IPC分类号： G01N21/64

    CPC分类号： G01N21/645 ,  G01N15/147 ,  G01N2021/4709 ,  G01N2021/6471

    摘要： A fine particle measuring device includes an optical filter that is divided into a plurality of areas and is disposed on an optical path on which light emitted from a fine particle, which is irradiated with light, is guided to an optical detector. In the fine particle measuring device, the optical filter includes a first area having wavelength selectivity by which the first area blocks reflected light from the fine particle and an unnecessary scattered light component and transmits fluorescence, and a second area that is disposed around at least the first area and has no wavelength selectivity so as to transmit a necessary scattered light component.

    摘要翻译： 微粒测量装置包括被分成多个区域的光学滤波器，并且设置在从被照射光的微粒发射的光被引导到光学检测器的光路上。 在微粒测量装置中，滤光器包括具有波长选择性的第一区域，第一区域通过该第一区域阻挡来自细颗粒的反射光和不需要的散射光分量并透射荧光;以及第二区域，其设置在至少 第一区域并且没有波长选择性以便传输必要的散射光分量。

    Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method
    5.
    发明授权
    Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method 失效
    光学拾取，光学记录和再现装置以及跟踪误差信号检测方法

    公开(公告)号：US07684305B2

    公开(公告)日：2010-03-23

    申请号：US11598579

    申请日：2006-11-14

    申请人： Yoshiki Okamoto ,  Katsuhiro Seo

    发明人： Yoshiki Okamoto ,  Katsuhiro Seo

    IPC分类号： G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/1353

    摘要： An optical pickup includes an optical system in which light from a light source is introduced through an objective lens into an optical recording medium and in which light reflected from the optical recording medium is introduced into a light-receiving unit and an objective lens driving unit for driving the objective lens based on a light output detected at said light-receiving unit. In this optical pickup, a diffraction element is provided between the light source and the objective lens, the diffraction element is provided with at least first and second diffraction areas and the first and second diffraction areas have such grating shapes that ± first-order diffracted lights diffracted are received by the light-receiving unit at the position in which 0-th order light and ± first-order diffracted lights generated from guide grooves of the optical recording medium may not overlap with each other.

    摘要翻译： 光学拾取器包括光学系统，其中来自光源的光通过物镜被引入到光学记录介质中，并且其中从光学记录介质反射的光被引入光接收单元和物镜驱动单元 基于在所述光接收单元处检测到的光输出来驱动物镜。 在该光学拾取器中，在光源和物镜之间设置衍射元件，衍射元件设置有至少第一和第二衍射区域，并且第一和第二衍射区域具有这样的光栅形状，即±一级衍射光 衍射由光接收单元在从光记录介质的引导槽产生的0级光和±一级衍射光彼此不重叠的位置处接收。

    Optical pickup and optical disc device
    6.
    发明授权
    Optical pickup and optical disc device 有权
    光学拾取和光盘设备

    公开(公告)号：US07336432B2

    公开(公告)日：2008-02-26

    申请号：US11214748

    申请日：2005-08-31

    申请人： Katsuhiro Seo ,  Yoshiaki Kato ,  Yoshiki Okamoto ,  Takeshi Yonezawa

    发明人： Katsuhiro Seo ,  Yoshiaki Kato ,  Yoshiki Okamoto ,  Takeshi Yonezawa

    IPC分类号： G02B9/06

    CPC分类号： G11B7/13927 ,  G11B7/1376 ,  G11B7/24038

    摘要： An optical pickup includes at least a laser light source emitting a laser beam, a collimator lens system including a plurality of lenses for collimating the light beam emitted from the laser light source and incident thereupon as diffused light, and an objective lens. The laser beam transmitted through the collimator lens system is incident upon the objective lens. The collimator lens system includes a first lens unit held so as to be movable in an optical axis direction of the laser beam and a fixed second lens unit.

    摘要翻译： 光拾取器至少包括发射激光束的激光光源，准直透镜系统，其包括多个透镜，用于准直来自激光光源的光束并作为漫射光入射到其上;以及物镜。 透射准直透镜系统的激光束入射到物镜上。 准直透镜系统包括保持以能够在激光束的光轴方向上移动的第一透镜单元和固定的第二透镜单元。

    Optical pickup and method for manufacturing optical pickup
    7.
    发明授权
    Optical pickup and method for manufacturing optical pickup 失效
    光学拾取器对聚焦误差信号偏移具有减小的调制效应

    公开(公告)号：US06246644B1

    公开(公告)日：2001-06-12

    申请号：US09098869

    申请日：1998-06-17

    申请人： Katsuhiro Seo

    发明人： Katsuhiro Seo

    IPC分类号： G11B712

    CPC分类号： G11B7/00718 ,  G11B7/0909 ,  G11B7/22

    摘要： An optical pickup minimizing the modulation caused on the focus error signal by grooves/lands or a train of pits, and implementing a stable focus servo operation. In an optical pickup adapted to obtain focus error information by means of an astigmatism system, the arranging state of an objective lens (5) is set so that a direction (DOB) of an astigmatism generated by the objective lens (5) will be a direction in a predetermined angle range with respect to a direction (DSD) of an astigmatism generated by an astigmatism generating element e.,g (cylindrical lens (7)). The predetermined range is an angle range of ±50° with respect to the direction (DSD) of the astigmatism.

    摘要翻译： 一种光学拾取器，通过凹槽/平台或一系列凹坑来最小化对聚焦误差信号造成的调制，并实现稳定的聚焦伺服操作。 在适于通过像散系统获得聚焦误差信息的光学拾取器中，物镜（5）的布置状态被设置为使得由物镜（5）产生的散光的方向（DOB）将为 相对于由散光生成元件e，g（柱面透镜（7））产生的像散的方向（DSD）在预定角度范围内的方向。 预定范围是相对于像散方向（DSD）的±50°的角度范围。

    Optical pickup and optical disc apparatus
    9.
    发明授权
    Optical pickup and optical disc apparatus 失效
    光拾取和光盘装置

    公开(公告)号：US08411548B2

    公开(公告)日：2013-04-02

    申请号：US12858520

    申请日：2010-08-18

    申请人： Kazuhiko Nemoto ,  Katsuhiro Seo ,  Tamotsu Ishii

    发明人： Kazuhiko Nemoto ,  Katsuhiro Seo ,  Tamotsu Ishii

    IPC分类号： G11B7/13

    CPC分类号： G11B7/133 ,  G11B7/131 ,  G11B7/1353 ,  G11B2007/0013

    摘要： An optical pickup includes a light source emitting a light beam, a diffraction element diffracting the light beam to separate it into a main beam and a sub beam, an objective lens focusing the main and sub beams onto a desired recording layer of an optical disc, a lens moving section moving the objective lens in focusing and tracking directions, a light-separating element separating a reflected light beam, formed by reflecting each of the main and sub beams at the recording layer, into multiple beam components and allowing the reflected light beam to travel without rotating an image thereof, and a light-receiving element having multiple light-receiving regions that optically receive the reflected light beam and generating a light reception signal based on the amount of received light to allow a signal processing section to generate a focus error signal and a tracking error signal based on the light reception signal.

    摘要翻译： 光拾取器包括发射光束的光源，衍射光束以将其分离成主光束和副光束的衍射元件，将主光束和子光束聚焦到光盘的期望记录层上的物镜， 在聚焦和跟踪方向移动物镜的透镜移动部分，将通过将记录层中的每个主光束和副光束反射而形成的反射光束分离成多个光束分量并允许反射光束 在不旋转图像的情况下行进;以及光接收元件，具有光接收反射光束的多个光接收区域，并且基于接收光量产生光接收信号，以允许信号处理部分产生焦点 误差信号和基于光接收信号的跟踪误差信号。

    OPTICAL PICKUP AND OPTICAL DISC APPARATUS
    10.
    发明申请
    OPTICAL PICKUP AND OPTICAL DISC APPARATUS 失效
    光学拾取和光盘设备

    公开(公告)号：US20110044152A1

    公开(公告)日：2011-02-24

    申请号：US12858520

    申请日：2010-08-18

    申请人： Kazuhiko Nemoto ,  Katsuhiro Seo ,  Tamotsu Ishii

    发明人： Kazuhiko Nemoto ,  Katsuhiro Seo ,  Tamotsu Ishii

    IPC分类号： G11B7/135 ,  F21V5/00

    CPC分类号： G11B7/133 ,  G11B7/131 ,  G11B7/1353 ,  G11B2007/0013

    摘要： An optical pickup includes a light source emitting a light beam, a diffraction element diffracting the light beam to separate it into a main beam and a sub beam, an objective lens focusing the main and sub beams onto a desired recording layer of an optical disc, a lens moving section moving the objective lens in focusing and tracking directions, a light-separating element separating a reflected light beam, formed by reflecting each of the main and sub beams at the recording layer, into multiple beam components and allowing the reflected light beam to travel without rotating an image thereof, and a light-receiving element having multiple light-receiving regions that optically receive the reflected light beam and generating a light reception signal based on the amount of received light to allow a signal processing section to generate a focus error signal and a tracking error signal based on the light reception signal.

    摘要翻译： 光拾取器包括发射光束的光源，衍射光束以将其分离成主光束和副光束的衍射元件，将主光束和子光束聚焦到光盘的期望记录层上的物镜， 在聚焦和跟踪方向移动物镜的透镜移动部分，将通过将记录层中的每个主光束和副光束反射而形成的反射光束分离成多个光束分量并允许反射光束 在不旋转图像的情况下行进;以及光接收元件，具有光接收反射光束的多个光接收区域，并且基于接收光量产生光接收信号，以允许信号处理部分产生焦点 误差信号和基于光接收信号的跟踪误差信号。