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165 条记录 (耗时 0.011 秒)

    Method and apparatus for controlling dynamic convergence of a plurality of electron beams of a color cathode ray tube
    103.
    发明公开
    Method and apparatus for controlling dynamic convergence of a plurality of electron beams of a color cathode ray tube 失效
    方法和装置用于在彩色阴极射线管的多个电子束的动态收敛的控制

    公开(公告)号：EP0739028A2

    公开(公告)日：1996-10-23

    申请号：EP96108578.4

    申请日：1990-08-10

    申请人： ZENITH ELECTRONICS CORPORATION

    发明人： Chen, Hsing-Yao ,  Goski, Richard M. ,  Babicz, Eugene A.

    IPC分类号： H01J29/51 ,  H01J29/62

    CPC分类号： H01J29/51 ,  H01J29/503 ,  H01J29/628 ,  H01J2229/4841 ,  H01J2229/4865 ,  H01J2229/4872 ,  H01J2229/4879 ,  H01J2229/4893 ,  H01J2229/4896

    摘要： For use in a color cathode ray tube (CRT) having a self-converging yoke for applying an asymmetric magnetic field in a synchronous manner to a plurality of inline electron beams for deflecting the electron beams across a phosphorescing screen in the CRT, wherein the magnetic field causes defocusing of and an astigmatism of the electron beams where incident upon the CRT screen in off-center regions of the screen, an electron gun comprising: a cathode for generating electrons; a beam crossover arrangement for receiving electrons from the cathode and for forming a beam crossover; a first electrostatic quadrupole field aligned in a spaced manner along the electron beams and having a first asymmetric aperture through which the inline electron beams pass for applying a first electrostatic quadrupole field to the electron beams in compensating for the defocusing and astigmatism of the electron beams; and a second electrostatic quadrupole field aligned in a spaced manner along the electron beams with the first electrostatic quadrupole field and having a second asymmetric aperture through which the inline electron beams pass for applying a second electrostatic quadrupole field to the electron beams for further compensating for the defocusing and astigmatism of the electron beams.

    摘要翻译： 一种用于在具有用于施加到非对称磁场以同步的方式，以一字形电子束的多个用于在CRT跨越磷光屏幕偏转电子束的自会聚轭，worin磁性的彩色阴极射线管（CRT）使用 场引起的和在电子束，其中入射到在屏幕的偏离中心的区域在CRT屏幕到电子枪包括的散光散焦：用于产生电子的阴极; 从阴极接收电子和用于形成光束交叉的光束交叉布置; 在沿电子束以隔开的方式，并具有第一非对称孔，通过该一字形电子束通过用于补偿电子束的散焦和散光施加第一静电四极场的电子束对准的第一静电四极场; 和一个第二静电四极场在沿着与所述第一静电四极场的电子束以间隔方式排列，并且具有一个第二非对称孔，通过该一字形电子束通过用于施加第二静电四极场的电子束为进一步补偿 散焦和电子束的像散。

    A CRT electron gun for controlling divergence angle of electron beams according to intensity of current
    106.
    发明公开
    A CRT electron gun for controlling divergence angle of electron beams according to intensity of current 失效
    CRT电子枪中根据当前的电子束的开度角的控制。

    公开(公告)号：EP0642149A3

    公开(公告)日：1995-08-02

    申请号：EP94306513.6

    申请日：1994-09-05

    申请人： LG ELECTRONICS INC.

    发明人： Park, Myung Ho ,  Choi, Jin Yeal

    IPC分类号： H01J29/50 ,  H01J29/62 ,  H01J29/48

    CPC分类号： H01J29/488 ,  H01J29/503 ,  H01J29/624 ,  H01J2229/4841

    摘要： This invention relates to an inline electron gun for a color cathode ray tube, more particularly to an inline electron gun which can provide high resolution by controlling intensity of electrostatic lenses that controls electron beams according to intensity of current, dynamically. The electron gun for a cathode ray tube includes a three electrode part having a part formed of a plurality of inline electron beam emitting means for emitting electron beams and the other part formed of control electrodes and acceleration electrodes for controlling quantity of the emission and forming a crossover of the electron beams, a plurality of focusing electrodes and positive electrodes forming a main electrostatic focusing lenses for focusing the electron beam onto a screen, the electron beam emitting means and the plurality of electrodes are aligned in line with the tube axis spaced in a certain interval, successively, and a supplementary electrode having a fixed thickness and synchronizing to application signal of the electron beam emitting means, the supplementary electrode is positioned between the acceleration electrode and the focusing electrode adjacent to the acceleration electrode and is for forming an enlargement electrostatic lens for controlling the divergence angle of the electron beam according to the intensity of current.

    Color picture tube having inline electron gun with focus adjustment means
    110.
    发明公开
    Color picture tube having inline electron gun with focus adjustment means 失效
    Farbbildröhremit“inline”Elektronenkanone mit Fokusjustierung。

    公开(公告)号：EP0452789A2

    公开(公告)日：1991-10-23

    申请号：EP91105658.8

    申请日：1991-04-10

    申请人： THOMSON CONSUMER ELECTRONICS, INC.

    发明人： Maninger, Loren Lee ,  Marks, Bruce George

    IPC分类号： H01J29/50 ,  H01J29/62

    CPC分类号： H01J29/503 ,  H01J29/624 ,  H01J2229/4872 ,  H01J2229/4896

    摘要： A color picture tube (10) has a viewing screen (22) and an electron gun (26) for generating and directing three inline electron beams, a center beam and two side beams, toward the screen. The gun includes electrodes that form three focus lenses. A first lens (L1) is located in a beam-forming region of the gun. A second lens (L2) includes at least one electrode (42) for providing asymmetrically-shaped beams to a third lens (L3). The third lens is a common main focus lens for all three beams. The improvement comprises one (48) of the electrodes (44,48) of the third lens being shaped to provide a major amount of focus correction for each individual electron beam, and the one electrode of the second lens including means (70,71,72) for providing the remaining amounts of focus correction needed to substantially totally correct each individual electron beam.

    摘要翻译： 彩色显像管（10）具有观察屏（22）和电子枪（26），用于向屏幕产生并引导三个一字形电子束（中心光束和两个侧光束）。 枪包括形成三个聚焦透镜的电极。 第一透镜（L1）位于枪的束形成区域中。 第二透镜（L2）包括用于向第三透镜（L3）提供不对称形状的光束的至少一个电极（42）。 第三个透镜是所有三个光束的普通主要聚焦透镜。 该改进包括第三透镜的一个电极（44,48）中的一个（48）被成形为为每个单独的电子束提供大量的聚焦校正，并且第二透镜的一个电极包括装置（70,71， 72），用于提供基本上完全校正每个单独的电子束所需的剩余量的对焦校正。