【摘要】 讨论了由逆卡塞格林结构和补偿器构成的折反式星敏感器光学系统。该光学系统由一块球面反射镜、一块非球面反射镜以及由同种光学玻璃做成的两块球面透镜和一块非球面透镜组成。具有视场大、相对孔径大和易实现等优点。给出了该光学系统的设计指标和设计思想,并给出了由其初级像差公式确定初始结构参数的方法。经优化设计,得到了全视场为20°、入瞳直径为36.3mm、相对孔径为1∶1.2的光学系统。给出了它的成像质量评价。更多还原

【Abstract】 A catadioptric system for star sensors composed of the inverse Cassegrain configuration and a compensator is introduced. This system is composed of one spherical mirror, one aspherical mirror, two spherical lenses and one aspherical lens with the same glass, and has advantages of wide field of view, high relative aperture . The targets and idea to design this system are given. And the third order aberration formulas of the catadioptric system and the method to calculate the initial structure parameters are presented. After optimization, the full field of view, entrance pupil diameter and relative aperture respectively reach 20°, 36.3mm and 1∶12. Finally, the design result and its performance are evaluated.更多还原