摘要
基于三反射镜的三级相差理论,通过自定义优化函数,并使用遗传算法寻找合适的三反射镜光学系统的初始结构参数,利用光学设计软件ZEMAX对初始结构进一步离轴优化,设计出了视场角为18°×0.6°,焦距为1700 mm,入瞳直径为200 m的像方远心离轴三反射镜光学系统。该光学系统无中心遮拦,成像质量接近衍射极限,适用于空间遥感领域。
Based on the third order aberration theory, a merit function is established, genetic algorithm is employed to find the initial structure parameters with minimum merit function then the initial structure is loaded to ZEMAX for further optimization. A telecentric three-mirror reflective system with effective focal length of 1700 mm, entrance pupil diameter of 200 mm and field of view of 18°×0.6° is designed by making the y- field off axis. The performance of the system is close to the diffraction limit and it is unobstructed and suit for the field of space optical remote.
出处
《激光与光电子学进展》
CSCD
北大核心
2014年第12期199-205,共7页
Laser & Optoelectronics Progress
关键词
光学设计
三反射镜光学系统
大视场
空间光学
optical design
three-mirror reflective system
wide field of view
space optics
