Fig. 1. Algorithm flow diagram

Fig. 2. Initial structure and image quality

Fig. 3. Schematic diagram of optimization process

Fig. 4. Optical system layout

Fig. 5. Optical system transfer function

Fig. 6. Distribution of all field of view wave aberrations

Fig. 7. Tolerance analysis process

Fig. 8. Surface error type simulation

Fig. 9. Optical path and results of mirror surface shape detection

Fig. 10. Wavefront error measurement of optical system