The Extra-Large Deflection Angle Aberration Theory

Tong Linsu; Tu Yan

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The Extra-Large Deflection Angle Aberration Theory

更新时间：2025-12-08

- The Extra-Large Deflection Angle Aberration Theory
- Acta Electronica Sinica Issue 12, Pages: 1-9(1993)
- 作者机构：
  
  1. 东南大学电子学研究所
  2. 东南大学电子学研究所南京210018
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1993
- 稿件说明：
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[1]童林夙,屠彦.超大偏转角象差理论[J].电子学报,1993(12):1-9.

Tong Linsu, Tu Yan. The Extra-Large Deflection Angle Aberration Theory[J]. Acta Electronica Sinica, 1993, (12): 1-9.
[1]童林夙,屠彦.超大偏转角象差理论[J].电子学报,1993(12):1-9. DOI：

Tong Linsu, Tu Yan. The Extra-Large Deflection Angle Aberration Theory[J]. Acta Electronica Sinica, 1993, (12): 1-9. DOI：

摘要

本文采用曲轴电子光学理论

研究了超大偏转角情况下的偏转象差.给出了曲轴二级和三级象差公式.计算了均匀偏转场的曲轴二级、三级象差以及屏上光栅.并与一般直轴三级象差理论和解析公式的结果相比较.结果表明

随着偏转角的增大

曲轴三级象差的影响亦增大.当偏转角大于120°时

必须考虑曲轴三级象差的作用.

Abstract

In this paper

the deflection aberration theory at extra-large deflection angle is studied by means of the curved axes theory. The second-order and the third-order aberration coefficients are given accordingly. The second-order and the third-order curved axes aberration and the screen raster in the uniform field are computed. The results obtained by the extra-large aberration theory

by the general third-order deflection aberration theory and by the analytic-formula have been compared. It has been shown that when the deflection angle is larger than 120°

the effects of the third-order curved axes aberration must be considered.

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