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    Optical waveguide switch having peltier junction control elements
    1.
    发明授权
    Optical waveguide switch having peltier junction control elements 失效
    具有珀耳帖连接控制元件的光波导开关

    公开(公告)号：US6163633A

    公开(公告)日：2000-12-19

    申请号：US86038

    申请日：1998-05-28

    申请人： Tetsuji Ueda

    发明人： Tetsuji Ueda

    IPC分类号： G02F1/01 ,  G02F1/313 ,  G02B6/26 ,  G02F1/025 ,  G01B1/02

    CPC分类号： G02F1/3136 ,  G02F1/0147 ,  G02F2201/126

    摘要： A optical switch comprising: a substrate; and a Mach-Zehnder interferometer circuit provided on the substrate, the Mach-Zehnder interferometer circuit comprising two directional couplers and two optical transmission lines for connecting the directional couplers to each other; elements having Peltier effect provided respectively on the two optical transmission lines; and energizing means for energizing the elements in such a manner that heat is generated from one of the elements with absorption of heat being created in the other element. By virtue of the above construction, the optical switch can realize low power consumption, low extinction ratio, and low crosstalk.

    摘要翻译： 一种光学开关，包括：基板; 以及设置在基板上的马赫 - 策德尔干涉仪电路，马赫 - 策德尔干涉仪电路包括两个定向耦合器和用于将定向耦合器彼此连接的两条光传输线; 具有Peltier效应的元件分别设置在两条光传输线上; 以及用于以这样的方式激励元件的激励装置，即在另一个元件中产生吸收热量的元件之一产生热量。 凭借上述结构，光开关可实现低功耗，低消光比和低串扰。

    Transmission imager
    3.
    发明授权
    Transmission imager 有权
    传输成像仪

    公开(公告)号：US07397894B2

    公开(公告)日：2008-07-08

    申请号：US10565745

    申请日：2003-07-22

    申请人： Keisuke Nakai ,  Shigeru Sasakura ,  Masayuki Suzuki

    发明人： Keisuke Nakai ,  Shigeru Sasakura ,  Masayuki Suzuki

    IPC分类号： H05G1/65 ,  G01B1/02

    CPC分类号： G01N23/04

    摘要： It is an object of the present invention to provide a transmission imager which can produce a transmission image from two or more different view points with the use of a simpler arrangement.The transmission imager according to the present invention is provided having a radiation source 2 for radiating radioactive rays from its target 2a, a radiation detector, and a specimen table provided between the target 2 and the radiation detector for having a specimen to be examined placed thereon, wherein the radiation detector is arranged with its detecting surface at the center P extending substantially at a right angle to a reference axis L1 or L2 which extends from the center P to the target 2a. In particular, the transmission imager is characterized in that the radiation detector is a combination of two, first and second, radiation detectors 3 and 4. The first radiation detector 3 is arranged to be moved to and from the target 2a by the action of a driving mechanism and thus positioned further from the target 2a than the second radiation detector 4. The radiation source 2 is specifically arranged in relation to the two, first and second, radiation detectors 3 and 4 so that its target 2a comes at an angle to face a cathode 2b which is disposed closer to the second radiation detector 4.

    摘要翻译： 本发明的目的是提供一种透射成像器，其可以使用更简单的布置从两个或更多个不同的视点产生透射图像。 根据本发明的透射成像器设置有具有辐射源2的辐射源2，用于从其靶2a辐射放射线，辐射检测器和设置在靶2与放射线检测器之间的样本台，用于具有要被检查的样本 其中，辐射检测器被布置成其检测表面在中心P处基本上以与从中心P延伸到目标2a的参考轴线L 1或L 2成直角延伸。 特别地，透射成像仪的特征在于，辐射检测器是两个，第一和第二辐射检测器3和4的组合。 第一辐射检测器3布置成通过驱动机构的作用移动到目标2a和从目标2a移动，并且因此比第二辐射检测器4更远离目标物体2a定位。 辐射源2相对于两个第一和第二辐射检测器3和4被特别布置，使得其目标2a与一个靠近第二辐射探测器4的阴极2b面对。