摘要
在大偏转角自会聚彩色显像管的五级偏转像差中存在彗差校正的Ｄｉｌｅｍｍａ效应和像散校正的Ｔｒｉｌｅｍｍａ效应，即五级彗差的某种线性组合以及五级像散的某种线性组合均是常数，它们不受１０极场的影响。对于大偏转角五级彗差和像散的校正，应在Ｄｉｌｅｍｍａ和Ｔｒｉｌｅｍｍａ常数均为０或较小值时，通过调整１０极场分布进行校正。
The Dilemma effect for coma correction and Trilemma effect for astigmatism correction exist in fifth order aberration of self convergence colour picture tube at large deflection angle. This means the linear combinations of fifth ordr coma and fifth order astigmatism are constant and will not be affected by 10 pole field. When the Dilemma and Trilemma constants are all small value, the fifth order coma and astigmatism can be corrected by adjusting the distribution of 10 pole field.
出处
《电子器件》
CAS
1998年第4期219-222,共4页
Chinese Journal of Electron Devices
