公开(公告)号：EP0739028A3

公开(公告)日：1996-11-20

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： 用于具有自会聚磁轭的彩色阴极射线管（CRT），用于以同步方式向多个一字形电子束施加不对称磁场，用于使电子束偏转通过CRT中的磷光屏，其中磁性 场引起在屏幕的偏心区域入射到CRT屏幕上的电子束散焦和像散，电子枪包括：用于产生电子的阴极; 束交叉装置，用于接收来自阴极的电子并形成束交叉; 第一静电四极场，沿着电子束以间隔的方式排列，并具有第一非对称孔径，一字排列的电子束通过第一非对称孔径，用于向电子束施加第一静电四极磁场，以补偿电子束的散焦和散光; 以及第二静电四极场，其沿着具有第一静电四极场的电子束以间隔方式排列，并且具有第二非对称孔径，一字排列电子束通过所述第二不对称孔径用于将第二静电四极电场施加到电子束以进一步补偿 电子束散焦和散光。

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。