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    • 5. 发明授权
    • Inner shield for a cathode ray tube and method for manufacturing the same
    • 阴极射线管的内屏蔽及其制造方法
    • US06310433B1
    • 2001-10-30
    • US09260969
    • 1999-03-02
    • Hae-Su YounHwan-Cheol No
    • Hae-Su YounHwan-Cheol No
    • H01J2980
    • H01J29/06
    • An inner shield for a cathode ray tube comprising a plurality of rectangular segments parallel to the tube axis; a flange joined to each of the rectangular segments and bent in a right angle for mounting on a mask frame; a trapezoid portion joined to each of the rectangular segments, being arranged slantwise along an inner circumference of a funnel; and a pair of holes formed in the two adjacent trapezoid portions to decrease a deflection in a East-West direction of an electron beams. Since an undesirable affection on the electron beams caused by the earth magnetic field is decreased, a pin-cushion distortion and barrel distortion of the electron beams are highly decreased.
    • 一种用于阴极射线管的内屏蔽层,包括平行于管轴的多个矩形段; 连接到每个矩形部分并弯曲成直角以安装在掩模框架上的凸缘; 连接到每个矩形段的梯形部分,沿着漏斗的内圆周倾斜设置; 以及形成在两个相邻的梯形部分中的一对孔,以减小电子束的东西方向的偏转。 由于由地球磁场引起的对电子束的不希望的影响减小,所以电子束的针缓冲变形和桶形失真被大大降低。