应用椭球形整流罩的飞行器具有良好的空气动力学特性,但由于头罩的非旋转对称结构特性,后续红外搜索/跟踪成像系统难以同时实现大扫描视场与良好成像质量.为解决这一难题,提出一种基于拱形校正元件和动态校正器的椭球形整流罩光学系统设计方法,使用该方法设计的中波红外头罩光学系统具有±54°的超大扫描视场,且成像质量在整个扫描和瞬时视场内接近衍射极限. However, due to the non-rotational symmetry structure of the hood, it is difficult for the subsequent infrared search / tracking imaging system to achieve both the large field of view and the good image quality at the same time. To solve this problem , An ellipsoidal fairing optical system design method based on arched correction element and dynamic corrector is proposed. The mid-wave infrared head optical system designed by this method has an ultra-large scanning field of ± 54 °, and the image quality of the whole Near the diffraction limit in scanning and instantaneous field of view.