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    • 2. 发明授权
    • Electron tube
    • 电子管
    • US07176429B2
    • 2007-02-13
    • US10571292
    • 2004-09-09
    • Motohiro SuyamaHiroyuki KyushimaYasuharu NegiAtsuhito FukasawaYoshihiko KawaiYasuyuki EgawaAtsushi UchiyamaSuenori Kimura
    • Motohiro SuyamaHiroyuki KyushimaYasuharu NegiAtsuhito FukasawaYoshihiko KawaiYasuyuki EgawaAtsushi UchiyamaSuenori Kimura
    • H01J40/16
    • H01J40/16H01J9/233
    • In an electron tube, one end of an insulating tube is protruded toward the inside of an envelope, and an avalanche photodiode (APD) is provided on the one end of the insulating tube. Another end of the insulating tube is connected to an outer stem of the envelope. Alkali sources are provided inside the envelope. The alkali sources are disposed inside the envelope and generates alkali metal vapor to thereby form a photocathode on a predetermined part of the internal surface of the envelope. The alkali sources and insulating tube are isolated from each other by a separating member. When the electron tube is manufactured, the alkali metal vapor that is generated from the alkali sources is not deposited on the insulating tube due to existence of the separating member. This prevents voltage resistance between the envelope and APD from being decreased and the electrical field in the electron tube from being adversely affected, thereby preventing incident efficiency of electrons to the APD from being decreased.
    • 在电子管中,绝缘管的一端朝向外壳的内侧突出,在绝缘管的一端设置有雪崩光电二极管(APD)。 绝缘管的另一端连接到外壳的外部杆。 信封内提供碱源。 碱源设置在封套内,产生碱金属蒸气,由此在外壳的内表面的规定部分上形成光电阴极。 碱源和绝缘管通过分离构件彼此隔离。 当制造电子管时,由于分离部件的存在,从碱源产生的碱金属蒸气不会沉积在绝缘管上。 这防止了封套和APD之间的电阻降低,并且电子管中的电场受到不利影响,从而防止电子对APD的入射效率降低。
    • 9. 发明申请
    • Electron tube
    • 电子管
    • US20070069645A1
    • 2007-03-29
    • US10571007
    • 2004-09-09
    • Hiroyuki KyushimaMotohiro SuyamaSuenori KimuraYasiharu NegiAtsushi FukasawaYoshihiko KawaiAtsushi UchiyamaYasuyuki Egawa
    • Hiroyuki KyushimaMotohiro SuyamaSuenori KimuraYasiharu NegiAtsushi FukasawaYoshihiko KawaiAtsushi UchiyamaYasuyuki Egawa
    • H01J43/04
    • H01J40/16
    • An envelope (2) has a glass bulb body (4) and a cylindrical glass bulb base (5). The glass bulb body (4) includes an upper hemisphere (4a) and a lower hemisphere (4b). The upper hemisphere (4a) is curved in a substantially spherical shape. The lower hemisphere (4b) is substantially curved in a spherical shape and connects the upper hemisphere (4a) and glass bulb base (5). A photocathode (11) is formed on the inner surface of the glass bulb body (4). An avalanche photodiode (APD) (15) is disposed on the glass bulb body (4) side relative to an intersection (S) between an imaginary extended curved surface (I) of the lower hemisphere (4b) within the glass bulb base (5) and an axis (Z). When light enters the photocathode (11), electrons are emitted from the photocathode (11). The electrons are converged at the position above and in the vicinity of the APD (15) by an electrical field in the electron tube (1), so that the electrons enter the APD (15) in an efficient manner and are detected satisfactorily.
    • 信封(2)具有玻璃灯泡体(4)和圆柱形玻璃灯泡座(5)。 玻璃灯泡体(4)包括上半球(4a)和下半球(4b)。 上半球(4a)弯曲成大致球形。 下半球(4b)基本上弯曲成球形并连接上半球(4a)和玻璃球底座(5)。 在玻璃灯泡本体(4)的内表面上形成有光电阴极(11)。 雪崩光电二极管(APD)(15)相对于玻璃灯泡基座内的下半球体(4b)的假想延伸弯曲表面(I)之间的交点(S)设置在玻璃泡体(4)侧上 5)和轴(Z)。 当光进入光电阴极(11)时,从光电阴极(11)发射电子。 电子通过电子管(1)中的电场在APD(15)上方和附近的位置会聚,使得电子以有效的方式进入APD(15)并且被令人满意地检测。