Radial anisotropic cylinder type ferrite magnets and their manufacturing
methods and motors
    1.
    发明授权
    Radial anisotropic cylinder type ferrite magnets and their manufacturing methods and motors 失效
    径向各向异性圆柱型铁氧体磁铁及其制造方法和电机

    公开(公告)号:US5506557A

    公开(公告)日:1996-04-09

    申请号:US146190

    申请日:1994-01-18

    摘要: A high performance radial anisotropic cylinder-shape ferrite magnet for use in a motor to lower its noise and enable miniaturization thereof is formed of an integrated one-piece body formed of sintered Sr and/or Ba ferrite powders and has an axially-extending slit that is created before the body is sintered to reduce internal stress due to shrinkage. The slit can extend in parallel to both the axial and radial directions of the body, diagonally to both the axial and radial directions, or diagonally to the radial direction and parallel to the axial direction. The slit can be filled with a resin material.

    摘要翻译: PCT No.PCT / JP93 / 00319 Sec。 371日期1994年1月18日 102(e)日期1994年1月18日PCT 1993年3月17日PCT公布。 公开号WO93 / 19020 PCT 日本9月30日,1993年。用于电机降低噪声并使其小型化的用于电动机的高性能径向各向异性圆柱形铁氧体磁体由形成为Sr和/或Ba铁氧体粉末的一体化整体形成, 具有在被烧结之前产生的轴向延伸狭缝,以减少由于收缩引起的内部应力。 狭缝可以平行于主体的轴向和径向方向两者沿轴向和径向方向,或者与半径方向对角并且平行于轴向方向延伸。 狭缝可以填充树脂材料。

    Optical switch
    3.
    发明授权
    Optical switch 失效
    光开关

    公开(公告)号:US07003191B2

    公开(公告)日:2006-02-21

    申请号:US10790020

    申请日:2004-03-02

    IPC分类号: G02B6/26 G02B6/42

    摘要: An optical switch is provided in which the difference of the optical loss due to the difference of optical path can be reduced. The optical switch comprises the first switching parts 2A–2D and the second switching parts 3A–3D. The first switching parts 2A–2D each comprise: a planar waveguide device 4 in which four coupling optical waveguides 5a–5d and an input optical waveguide 6 are provided; and reflection mirrors 8a–8d for reflecting a light signal incident from the input optical waveguide 6 to the respective coupling optical waveguides 5a–5d, respectively. The second switching parts 3A–3D each comprise: a planar waveguide device 9 in which coupling optical waveguides 10a–10d and an output optical waveguide 11 are provided; and reflection mirrors 13a–13d for reflecting a light signal incident from the respective coupling optical waveguides 10a–10d to the output optical waveguide 11. The optical switch is provided with 16 optical fibers 20 for connecting the coupling optical waveguides 5a–5d of the first switching parts 2A–2D to the different second coupling optical waveguides 10a–10d of the second switching parts 3A–3D, respectively.

    摘要翻译: 提供一种光开关,其中可以减少由于光路差异引起的光损耗的差异。 光开关包括第一开关部分2A-2D和第二开关部分3A-3A。第一开关部分2A-2D分别包括:平面波导器件4,其中四个耦合光波导5a至 5d和输入光波导6; 以及用于将从输入光波导6入射的光信号分别反射到各个耦合光波导5a-5d的反射镜8a-8d。 第二开关部件3A-3D分别包括:设置有耦合光波导10 a至10 d的平面波导器件9和输出光波导11; 以及用于将从各个耦合光波导10 a -10 d入射的光信号反射到输出光波导11的反射镜13a-13d。 光开关设置有16根光纤20,用于将第一开关部分2A-2D的耦合光波导5a-5d连接到第二开关部分3A的不同的第二耦合光波导10a-10d -3 D。