Cathode-ray tube
    1.
    发明公开
    Cathode-ray tube 失效
    阴极射线管

    公开(公告)号:EP0589522A1

    公开(公告)日:1994-03-30

    申请号:EP93202690.9

    申请日:1993-09-17

    IPC分类号: H01J29/56 H01J29/48

    CPC分类号: H01J29/488 H01J29/563

    摘要: A cathode ray tube having an electron gun for relatively low beam currents (less than 1 mA) is shown. The electron gun has a G1 and a G2 electrode. The voltage difference between these electrodes is more than 800 Volt and the electrical field strength E₁₂ between said electrodes is more than 4 keV/mm. An improvement in spot size is thereby obtained.

    摘要翻译: 示出了具有用于较小射束电流(小于1mA)的电子枪的阴极射线管。 电子枪有一个G1和一个G2电极。 这些电极之间的电压差大于800伏特并且所述电极之间的电场强度E 12大于4千电子伏特/毫米。 从而获得点尺寸的改善。