To ameliorate the field of view Cassegrain optical system, a diffractive optical element (DOE) is successfully introduced to the system and the design scheme is provided in this paper.

• 摘要为了改善卡塞格林光学系统的视场，将衍射透镜成功地引入大视场卡塞格林光学系统的设计中，并给出了设计方案。