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    • 8. 发明授权
    • Cathode-ray tube with magnetic ring
    • 带磁环的阴极射线管
    • US4591755A
    • 1986-05-27
    • US380792
    • 1982-05-21
    • Walter Kornaker
    • Walter Kornaker
    • H01J31/20H01J29/50H01J29/51H01J29/54H01J29/70H01J29/76H01J29/56
    • H01J29/703H01J29/51
    • A cathode-ray tube 10 with a deflection system 15 and an electron gun 14 having a magnetic ring 19 attached thereto is designed so that the magnetic ring 19 is not covered by the deflection system 15. To achieve this, the magnetic ring 19 is placed further to the back of the color-picture tube 10 than in conventional tubes, and/or the deflection system 15 is made shorter at the back. On an adjusting apparatus comprising both a magnetizing device and a deflection-system-positioning device, the magnetization of the magnetic ring and the positioning of the deflection system of such a tube 10 can be performed simultaneously and independent of each other. The measure can be taken on all tubes having a deflection system 15 and a magnetic ring 19 for adjusting the positions of at least two electron beams; in the case of color-picture tubes, color purity and static convergence are adjusted with such a ring.
    • 具有偏转系统15的阴极射线管10和安装有磁环19的电子枪14被设计成使得磁环19不被偏转系统15覆盖。为此,将磁环19放置 进一步到彩色显像管10的背面,而不是传统的管,和/或偏转系统15在后面变短。 在包括磁化装置和偏转系统定位装置的调节装置上,磁环的磁化和这种管10的偏转系统的定位可以同时且彼此独立地执行。 该测量可以在具有偏转系统15和磁环19的所有管上进行,用于调节至少两个电子束的位置; 在彩色显像管的情况下,用这种环调节色纯度和静态会聚。