非球面目镜

由于孔径光栏（出瞳）在目镜光学系统的外面，所以光学系统的畸变矫正格外地困难。消除畸变的最佳方法是采用非球面。本文依据三级像差理论，对新颖的非球面广角目镜的光学系统设计作了描述，并给出设计的结果和数据。

The Eyepiece of Aspherical Surface

Because the aperture stop (exit pupil) is normally outside of the eyepiece optical systems，it's especially difficult to correct the distortion of the optical system. The best way to eliminate the distortion is to use aspherieal surface. The novel design of the optical system with aspherieal surface of a wide angle eyepiece is described by the third-order aberration theory. The designning resups and data are given.