【摘要】 介绍了一种基于三反消像散系统的大视场长焦子孔径合成光学成像系统的设计方法。在利用菲涅尔衍射直接积分叠加的基础上对子出瞳波前进行了像质评估,以实现对拼接镜面的全面仿真和分析;用非序列面误差分析和分配的结果修改初始结构;通过高次曲面平衡像差,并在结构优化时使用较小F数的系统增加结构对子镜失调误差的冗余度,迭代完成系统的最终设计。设计了一个同轴三反子孔径合成光学成像系统,焦距为44 m,f/8,7子镜拼接,视场角达0.6°×0.06°,通过不断迭代,获得了较好的结构和成像质量。更多还原

【Abstract】 Based on balancing aberration of Three-Mirror-Anastigmatic(TMA),a kind of segmented optical design way with long focal length and wide Field of View(FOV) was introduced.Segmented system was completely simulated and analyzed using Fresnel diffraction integral for the exit pupil wavefront.Considering on the error analysis and distribution of non-sequential surface,the initial design was modified.In order to balance the aberration and increase the system redundancy, the high order asphere and bigger aperture system were optimized.A segmented synthetic aperture optical system with segmented primary mirror was designed in EFL of 44 m,f/8,FOV of 0.6°×0.06°.By iterating the design scheme and analyzing error,a good design is obtained.更多还原