计算物理 ›› 1993, Vol. 10 ›› Issue (2): 146-154.

• 论文 • 上一篇    下一篇

静电偏转型摄像管聚焦偏转系统设计Ⅰ-场的计算

杨国伟, 关永贵   

  1. 华东工学院光电技术系, 南京 210014
  • 收稿日期:1991-11-07 修回日期:1992-07-14 出版日期:1993-06-25 发布日期:1993-06-25

DESIGN OF FOCUS DEFLECTION SYSTEM FORELECTROSTATIC DEFLECTION TYPE CAMERA TUBES 1ELECTROSTATIC FIELD CALCULATION

Yang Guowei, Guan Yonggui   

  1. East China Institute of technology, Nanjing 210014
  • Received:1991-11-07 Revised:1992-07-14 Online:1993-06-25 Published:1993-06-25

摘要: 磁聚焦静电偏转(MS)和静电聚焦静电偏转(SS)型摄像管具有图像失真小,分辨率高且均匀,电子束易于垂直上靶,阴影小等优点,所以受到人们的重视。但图案偏转电极的形状复杂,非对称场的计算较困难。本文对静电偏转型聚焦偏转系统的结构作了分析研究,远用分离变量法给出了圆柱坐标中静电聚焦(旋转对称)场和静电偏转(非旋转对称)场的解析解,并给出了计算实例。

关键词: 摄像管, 静电偏转, 静电聚焦, 静电场

Abstract: An electrostatic deflection-type camera tube has the following advantages: The small electron beam spots over the entire the scanned area provide uniform and high resolution picture, normal beam landing performance and deflection linearity are also excellent. The purpose of the paper is to .give the field calculation for focus deflection system of a camera tube with electrostatic deflection yokes.

Key words: camera tube, electrostatic denection, electrostatic focus, electrostatic field