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    • 10. 发明授权
    • Cathode-ray tube with electrostatic convergence electrode assembly
    • 阴极射线管与静电会聚电极组件
    • US5418421A
    • 1995-05-23
    • US976391
    • 1992-11-13
    • Kouji HasegawaYukinobu IguchiYoshifumi NakayamaYouichi Ohshige
    • Kouji HasegawaYukinobu IguchiYoshifumi NakayamaYouichi Ohshige
    • H01J29/48H01J29/51H01J29/62H01J29/50
    • H01J29/628H01J29/51
    • A cathode-ray tube has an electron gun sealed in a neck in confronting relationship to the phosphor screen. The electron gun comprises a cathode assembly for emitting three electron beams, a main lens region for passing the electron beams therethrough, the main lens means including a high-voltage electrode or grid closer to the phosphor screen, and an assembly of electrostatic deflection plates, positioned closer to the phosphor screen than the high-voltage electrode, for converging the electron beams as one spot on the phosphor screen. An electrostatic convergence electrode assembly is disposed between the high-voltage electrode and the deflection plates. The electrostatic convergence electrode assembly may comprise three or two juxtaposed flat electrodes having electron beam passage holes. The voltages applied to the high-voltage electrode and the deflection plates are also applied selectively to the three or two electrodes of the electrostatic convergence electrode assembly for applying an astigmatic effect equally to the electron beams.
    • 阴极射线管具有与荧光屏面对面的密封在颈部的电子枪。 电子枪包括用于发射三个电子束的阴极组件,用于使电子束通过的主透镜区域,主透镜装置包括更靠近荧光屏的高压电极或栅格,以及静电偏转板的组件, 位于比高压电极更靠近荧光屏的位置,用于将电子束会聚为荧光屏上的一个点。 静电会聚电极组件设置在高压电极和偏转板之间。 静电会聚电极组件可以包括具有电子束通过孔的三个或两个并置的扁平电极。 施加到高电压电极和偏转板的电压也被选择性地施加到静电会聚电极组件的三个或两个电极上,用于对电子束施加像散效应。