分析了毫米波行波管电子光学系统的基本特征和设计方法。
The basic feature and design method of MMW TWTs electronic optics system are analyzed in this paper.
应用光程函数法计算出旋转对称电子光学系统的7级几何像差，给出旋转对称电磁场同时存在情况下的系统7级几何像差表示式。
The 7th order geometrical aberration of rotationally symmetrical electron optic system and their expressions are given by using the eikonal method when the electric and magnetic fields exit.
电子光学系统（EOS）系列相机是佳能1987年开始生产的， 其第一部相机是EOS650，这是世界上第一部全电子卡口的相机。
The Electro Optical System (EOS) series was introduced in 1987 with the launch of EOS 650 which incorporated the world’s first fully electronic mount.
电子光学系统（EOS）系列相机是佳能1987年开始生产的， 其第一部相机是EOS650，这是世界上第一部全电子卡口的相机。
The Electro Optical System (EOS) series was introduced in 1987 with the launch of EOS 650 which incorporated the world’s first fully electronic mount.
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