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    Rotational angle detection device and method for permanent magnet dynamo-electric machine and electric power steering device
    42.
    发明授权
    Rotational angle detection device and method for permanent magnet dynamo-electric machine and electric power steering device 有权
    永磁发电机和电动助力转向装置的转角检测装置及方法

    公开(公告)号：US08324768B2

    公开(公告)日：2012-12-04

    申请号：US12351244

    申请日：2009-01-09

    申请人： Masatsugu Nakano ,  Akira Satake ,  Kanji Shinkawa ,  Hiroyuki Akita ,  Sachiko Kawasaki

    发明人： Masatsugu Nakano ,  Akira Satake ,  Kanji Shinkawa ,  Hiroyuki Akita ,  Sachiko Kawasaki

    IPC分类号： H02K29/06 ,  H02K1/27 ,  H02K29/08 ,  H02K21/04 ,  H02K21/14

    CPC分类号： G01D5/2046 ,  H02K1/223 ,  H02K1/276 ,  H02K1/278 ,  H02K29/12 ,  H02P6/18 ,  H02P21/18

    摘要： A rotational angle detection device for a permanent magnet dynamo-electric machine, including: a stator (10); a rotor (20); and a conductive circuit that includes first conductors (1a1, 1a2) extending in a direction parallel to a rotational axis of the rotor and being disposed in at least two places in a circumferential direction of the rotor, and second conductors (1b1, 1b2) for electrically interconnecting the first conductors. In this case, the first conductors are each disposed within a range of an electrical angle between −45° and +45° in the circumferential direction with a magnetic pole center being set as a reference, and the conductive circuit is disposed in at least one place in the circumferential direction, and the rotational angle detection device further comprising a detection means for detecting a rotational angle of the rotor by measuring a value of a current flowing through the armature winding.

    摘要翻译： 一种用于永磁发电机的转角检测装置，包括：定子（10）; 转子（20）; 以及导电电路，其包括在平行于所述转子的旋转轴线的方向上延伸并设置在所述转子的周向的至少两个位置的第一导体（1a1,1a2）和第二导体（1b1,1b2），所述第二导体 电连接第一导体。 在这种情况下，第一导体分别设置在圆周方向的-45°〜+ 45°的电角度的范围内，以磁极中心为基准，导电电路配置在至少一个 并且旋转角度检测装置还包括检测装置，用于通过测量流过电枢绕组的电流的值来检测转子的旋转角度。

    Brushless motor
    46.
    发明申请
    Brushless motor 有权
    无刷电机

    公开(公告)号：US20060017343A1

    公开(公告)日：2006-01-26

    申请号：US10997876

    申请日：2004-11-29

    申请人： Katsumi Ohata ,  Masatsugu Nakano ,  Tetsunao Takaki

    发明人： Katsumi Ohata ,  Masatsugu Nakano ,  Tetsunao Takaki

    IPC分类号： H02K1/27

    CPC分类号： H02K1/278

    摘要： A brushless motor is capable of increasing output torque while suppressing an increase in iron loss. A plurality of magnets are magnetized in reverse radial orientation in such a manner that magnetic fields directed toward a stator converge toward the stator, and each of the magnets is provided at opposite ends of its outer peripheral surface with a pair of notched portions that are cut away to gradually approach in an axial direction as they proceed from an intermediate portion to the opposite ends.

    摘要翻译： 无刷电动机能够在抑制铁损的增加的同时增加输出转矩。 多个磁体以反向径向定向磁化，使得朝向定子的磁场朝向定子会聚，并且每个磁体设置在其外周面的相对端部，其中一对切口部分被切割 在从中间部分到相对端进行时沿轴向逐渐接近。

    Catadioptric optical system and image pickup apparatus having the same
    49.
    发明授权
    Catadioptric optical system and image pickup apparatus having the same 有权
    反折射光学系统和具有其的摄像装置

    公开(公告)号：US08947774B2

    公开(公告)日：2015-02-03

    申请号：US13401999

    申请日：2012-02-22

    申请人： Masatsugu Nakano

    发明人： Masatsugu Nakano

    IPC分类号： G02B17/00 ,  G02B17/08

    CPC分类号： G02B17/0808 ,  G02B17/0856

    摘要： A catadioptric optical system includes a first imaging optical system that includes a catadioptric part that collects a light beam from an object to form an intermediate image of the object, and a second imaging optical system that includes a refractive part that images the intermediate image on an image plane. The first imaging optical system includes a first optical element, a second optical element, and a negative lens in an optical path between the first and second optical elements, and the first and second optical elements are disposed so that reflection parts of the first and second optical element face each other. A power φn of the negative lens, radii of curvature R1n and R2n of lens surfaces of the negative lens at an object side and an image side, respectively, and a power φ1 of the first imaging optical system are appropriately set.

    摘要翻译： 反折射光学系统包括：第一成像光学系统，其包括收集来自物体的光束以形成物体的中间图像的反射折射部分;以及第二成像光学系统，其包括在中间图像上成像的折射部分 图像平面 第一成像光学系统包括在第一和第二光学元件之间的光路中的第一光学元件，第二光学元件和负透镜，并且第一和第二光学元件设置成使得第一和第二光学元件的反射部分 光学元件彼此面对。 分别在物体侧和像侧的负透镜的功率＆phnn，负透镜的透镜表面的半径R1n和R2n以及第一成像光学系统的功率＆amp; 1被适当地设定。

    Catadioptric optical element and optical system including same
    50.
    发明授权
    Catadioptric optical element and optical system including same 有权
    反折射光学元件和包括其的光学系统

    公开(公告)号：US08947773B2

    公开(公告)日：2015-02-03

    申请号：US13492167

    申请日：2012-06-08

    申请人： Masatsugu Nakano

    发明人： Masatsugu Nakano

    IPC分类号： G02B17/00

    CPC分类号： G02B17/084 ,  G02B21/04

    摘要： A catadioptric lens comprises, a first surface configured to introduce a ray within the catadioptric lens; and a second surface, with a reflective film, configured to reflect the introduced ray to the first surface; the second surface having a first reflection area and a second reflection area surrounded by the first reflection area, wherein the ray, which has been introduced from the first surface and has traveled to the first reflection area, is reflected on the first reflection area by total internal reflection, and the ray, which has been introduced from the first surface and has traveled to the second reflection area, is reflected by the reflective film.

    摘要翻译： 反射折射透镜包括：第一表面，被配置为将光线引入反射折射透镜内; 以及具有反射膜的第二表面，被配置为将引入的光线反射到第一表面; 所述第二表面具有由所述第一反射区域包围的第一反射区域和第二反射区域，其中已经从所述第一表面引入并已经行进到所述第一反射区域的所述光线在所述第一反射区域上被反射总计 内反射，并且从第一表面引入并且已经行进到第二反射区域的光线被反射膜反射。