The effect on this restoration caused by the deviation of the electromagnetic coefficients from the "perfect lens" conditions was discussed.
同时讨论了异向媒质电磁参数与理想完美透镜条件的偏差对异向介质对倏逝波恢复作用的影响。
2
In the present study, an aberration theory for both wide and narrow electron beams in a combined electromagnetic focusing spherical cathode lens system is discussed.
本文研究了对宽束和细束阴极透镜普遍适用的电磁复合聚焦球面阴极透镜的象差理论。
3
The lens driving device has the advantages of simple structure, low noise and electromagnetic interference resistance.