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    Photodetector
    1.
    发明申请
    Photodetector 失效

    公开(公告)号：US20040135071A1

    公开(公告)日：2004-07-15

    申请号：US10703160

    申请日：2003-11-07

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Yasuharu Negi ,  Toru Hirohata

    IPC: H01J040/14

    CPC classification number: H01J43/02 ,  H01J7/24 ,  H05K7/20163

    Abstract: The invention relates to a photodetector capable of detecting even weak light with precision and having a structure permitting size reduction. In the photoelectric tube, a photoelectric tube is cooled down starting from a light receiving faceplate side via a supporting protrusion piece of a heat conductive supporting member fixed to the heat absorbing portion of a cooling device by the heat absorbing operation of the cooling device. At this time, the photoelectric tube is fixed only to the supporting protrusion piece, so that heat inflow through other members is prevented. Thus, the photoelectric surface is efficiently cooled down through the light receiving faceplate by the cooling device serving as a cooling source, so that a stable cooling temperature is obtained. This suppresses the emission of thermal electrons from the photoelectric surface, and hence sufficiently suppresses the occurrence of noise in the photoelectric tube. In this state, light to be measured that is transmitted through the light entrance window of the housing is incident on the photoelectric surface of the photoelectric tube via an aperture stop of the supporting protrusion piece, while background light emitted from the housing is shielded by the supporting protrusion piece around the aperture stop so as not to be incident on the photoelectric surface.

    Photocathode
    2.
    发明申请
    Photocathode 有权
    光电阴极

    公开(公告)号：US20040094755A1

    公开(公告)日：2004-05-20

    申请号：US10705901

    申请日：2003-11-13

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Toru Hirohata ,  Minoru Niigaki ,  Tomoko Mochizuki ,  Masami Yamada

    IPC: H01L029/06

    CPC classification number: H01J1/34 ,  H01J2201/342

    Abstract: The invention relates to a photocathode having a structure that permits a decrease in the radiant sensitivity at low temperatures is suppressed so that the S/N ratio is improved. In the photocathode, a light absorbing layer is formed on the upper layer of a substrate. An electron emitting layer is formed on the upper layer of the light absorbing layer. A contact layer having a striped-shape is formed on the upper layer of the electron emitting layer. A surface electrode composed of metal is formed on the surface of the contact layer. The interval between bars in the contact layer is adjusted so as to become 0.2 nullm or more but 2 nullm or less.

    Abstract translation: 本发明涉及具有抑制低温下的辐射灵敏度降低的结构的光电阴极，从而提高S / N比。 在光电阴极中，在基板的上层形成有光吸收层。 在光吸收层的上层形成电子发射层。 具有条纹状的接触层形成在电子发射层的上层。 在接触层的表面上形成由金属构成的表面电极。 调整接触层中的条之间的间隔，使其变为0.2μm以上2μm以下。

    Photocathode, electron tube, and method of assembling photocathode
    3.
    发明申请
    Photocathode, electron tube, and method of assembling photocathode 有权
    光电阴极，电子管和组装光电阴极的方法

    公开(公告)号：US20040094694A1

    公开(公告)日：2004-05-20

    申请号：US10704695

    申请日：2003-11-12

    Applicant: Hamamatsu PHOTONICS K.K.

    Inventor： Yasuharu Negi ,  Yasuyuki Egawa ,  Toru Hirohata ,  Minoru Niigaki

    IPC: H01J040/14

    CPC classification number: H01J43/28 ,  H01J43/08

    Abstract: The invention relates to a photocathode and the like having such structure for holding a photocathode plate on a light transparent member with good reliability and workability. In the photocathode, claw portions of a holding member fixed to the light transparent member is pressed against the lower surface of a supporting plate so that a photocathode plate is sandwiched between the light transparent member and the supporting plate. Thus, the supporting plate is pressed against the photocathode plate, so that the photocathode plate is pressed against the light transparent plate by the supporting plate. This allows the photocathode plate to be held reliably by the light transparent member. This simple configuration further provides good workability in assembling.

    Abstract translation: 本发明涉及一种具有这样的结构的光电阴极等，该光电阴极等具有良好的可靠性和可加工性的将光电面板保持在透光构件上。 在光电阴极中，固定在透光构件上的保持构件的爪部被压靠在支撑板的下表面上，使得光电阴极板夹在透光构件和支撑板之间。 因此，支撑板被压在光电阴极板上，使得光电阴极板通过支撑板压靠在透光板上。 这允许光电阴极板被透光构件可靠地保持。 这种简单的配置进一步提供了组装时的良好的可操作性。

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