Fig. 1. Schematic diagram of orbiting satellites

Fig. 2. Characterization of optical materials in the designed spectral band

Fig. 3. Schematic diagram of the main ray transmission of a negative meniscus lens

Fig. 4. Initial system optical path diagram

Fig. 5. Initial system magnification chromatic aberration

Fig. 6. Initial system field curvature

Fig. 7. Diagram of the final system optical path

Fig. 8. Spot diagram of the final system

Fig. 9. MTF of the final system

Fig. 10. Lateral color of the initial structure of the final system

Fig. 11. The distribution curves of the theoretical and actual values of ground element resolution

Fig. 12. Field curvature of the final system

Fig. 13. Relative Illumination of the final system

Fig. 14. System ditoortion grid

Fig. 15. 750 nm monochrome MTF

Fig. 16. 260 nm monochrome MTF

Fig. 17. Simulation of e light propagation when the system point series diagram

Fig. 18. Cumulative distribution of MTF probabilities in the system

Fig. 19. MTF at -40 ℃

Fig. 20. MTF at +50 ℃