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    • 2. 发明授权
    • Color picture tube having metal strands spaced from the insulator layers
    • 彩色显象管具有与绝缘体层间隔开的金属线
    • US6157121A
    • 2000-12-05
    • US170885
    • 1998-10-13
    • Frank Rowland Ragland, Jr.Walter David Masterton
    • Frank Rowland Ragland, Jr.Walter David Masterton
    • H01J29/07H01J29/80
    • H01J29/07H01J29/80
    • A color picture tube comprises an evacuated envelope having an electron gun therein for generating at least one electron beam, a faceplate panel having a luminescent screen with phosphor lines on an interior surface thereof, and a tension focus mask. The mask has spaced apart first metal strands which are adjacent to an effective picture area of the screen and define a plurality of slots substantially parallel to the phosphor lines. Each of the first metal strands across the effective picture area have a substantially continuous insulator layer on a screen-facing side thereof. The mask also includes a plurality of second metal strands oriented substantially perpendicular to the first metal strands. The second metal strands are spaced from the insulator layer when the tube is not energized and are in contact with the insulator layer when the tube is energized.
    • 彩色显象管包括一个真空的外壳,其中有一个电子枪,用于产生至少一个电子束,一个具有荧光屏的荧光屏在其内表面上具有荧光屏的面板和一个张力聚焦掩模。 掩模具有与屏幕的有效图像区域相邻的间隔开的第一金属股线,并且限定基本上平行于荧光体线条的多个狭槽。 横跨有效图像区域的每个第一金属股线在其面向屏幕侧上具有基本上连续的绝缘体层。 掩模还包括基本上垂直于第一金属股线定向的多个第二金属股。 当管未通电时,第二金属线与绝缘体层间隔开,并且当管被通电时与第二金属线接触绝缘体层。