Electron-beam forming system for multi-beam cathode-ray tubes
    1.
    发明授权
    Electron-beam forming system for multi-beam cathode-ray tubes 失效
    用于多光束阴极射线管的电子束形成系统

    公开(公告)号:US4492894A

    公开(公告)日:1985-01-08

    申请号:US542090

    申请日:1983-10-17

    IPC分类号: H01J29/48 H01J29/82 H01J29/50

    CPC分类号: H01J29/484

    摘要: The electrodes of an electron-gun system of a color-picture tube are heated less as their distance from the cathode of the system increases. The electrode materials are so chosen with respect to their coefficients of expansion that no mechanical stresses are caused in the system structure despite the different temperatures.

    摘要翻译: 当与系统的阴极的距离增加时,彩色显像管的电子枪系统的电极被加热得较少。 电极材料相对于它们的膨胀系数是如此选择的,尽管在不同的温度下也不会在系统结构中引起机械应力。

    Temperature compensated electron gun system
    3.
    发明授权
    Temperature compensated electron gun system 失效
    温度补偿电子枪系统

    公开(公告)号:US4631442A

    公开(公告)日:1986-12-23

    申请号:US653753

    申请日:1984-09-21

    IPC分类号: H01J29/50 H01J29/48 H01J29/82

    CPC分类号: H01J29/484

    摘要: An electron-gun system is described in which the segments of the particularly long electrode neighboring the other electrodes are made of a material having a temperature expansion coefficient differing from that of the other electrodes.

    摘要翻译: 描述了一种电子枪系统,其中与其他电极相邻的特别长的电极的段由具有不同于其它电极的温度膨胀系数的材料制成。

    Electron-gun system
    4.
    发明授权
    Electron-gun system 失效
    电子枪系统

    公开(公告)号:US4942334A

    公开(公告)日:1990-07-17

    申请号:US200606

    申请日:1988-05-31

    IPC分类号: H01J29/48 H01J29/50

    CPC分类号: H01J29/488 H01J29/503

    摘要: In a cathode-ray tube with a thick grid No. 2 (24) in the electron-gun system, current transfer into grid No. 2 (24) may result in a lack of picture sharpness. To avoid this error, the aperture (4) in grid No. 2 (24) has a widening (6) of conical shape or stepped diameter.

    摘要翻译: 在电子枪系统中具有厚栅格No.2(24)的阴极射线管中,电流传输到电网2(24)可能导致图像清晰度不足。 为了避免这种错误,格栅2(24)中的孔(4)具有锥形或阶梯直径的扩大(6)。

    In-line color picture tube
    5.
    发明授权
    In-line color picture tube 失效
    在线彩色图像管

    公开(公告)号:US5148081A

    公开(公告)日:1992-09-15

    申请号:US655446

    申请日:1991-02-28

    IPC分类号: H01J29/50 H01J29/56

    摘要: To prevent the formation of a corona (2) in a known in-line color picture tube with an automatic-focusing deflection system and four grids (G1-G4), a rectangular opening is provided on the side of the second grid (G2) facing the first grid (G1). As a result, the luminous spot (1) formed by the electron beam at the center of the screen is converted to a vertical ellipse and the ratio of the axes of the lateral ellipses on the edge of the image is reduced, thus improving the sharpness of the edges. The openings (5) in the first grid (G1) are elongated in the in-line direction, in particular rectangular, the adjacent openings of the second grid (G2) are also rectangular and all the other openings in the other grids (G2, G3, G4) are circular. In this way, the ratio of the axes of the luminous elliptical spot (11) produced by the electron beam at the center of the screen is reduced without adversely affecting the sharpness of the edges.

    摘要翻译: PCT No.PCT / EP89 / 01029 Sec。 371日期1991年2月28日 102(e)1991年2月28日PCT PCT 1989年9月4日PCT公布。 出版物WO90 / 03042 日期1990年3月22日。为了防止在具有自动聚焦偏转系统和四个格栅(G1-G4)的已知直列彩色显像管中形成电晕(2),在侧面设置矩形开口 的第二格栅(G2)面向第一格栅(G1)。 结果,由屏幕中心处的电子束形成的发光点(1)被转换为垂直椭圆,图像边缘上的横向椭圆轴的比例减小,从而提高了锐度 的边缘。 第一格栅(G1)中的开口(5)沿直线方向(特别是矩形)细长,第二格栅(G2)的相邻开口也是矩形的,而另一格栅(G2, G3,G4)是圆形的。 以这种方式,由屏幕中心处的电子束产生的发光椭圆形点(11)的轴线的比例减小,而不会不利地影响边缘的锐度。