Fig. 1. Principle of refraction and reflection of polarized rays in q plane

Fig. 2. Schematic of optical system

Fig. 3. Schematic of ray tracing

Fig. 4. Jines pupil diagram with Z_5/6 term freeform surface. (a) Amplitude; (b) phase

Fig. 5. Influence of Z_5/6 term freeform surface on phase aberration

Fig. 6. Polarization aberration distribution of single reflection system with Z_5/6 term freeform surface. (a) Diattenuation; (b) retardance

Fig. 7. Change of phase difference before and after addition of Z_5/6 term freeform surface. (a) Diattenuation; (b) retardance

Fig. 8. Diattenuation pupil in full field of view

Fig. 9. Retardance pupil in full field of view

Fig. 10. Influence of Z_5/6 term freeform surface in full field of view on polarization aberration of system. (a) Diattenuation; (b) retardance

Fig. 11. Analysis process of polarization characteristics of freeform surface optical system

Fig. 12. Optical system diagram

Fig. 13. MTF diagram

Fig. 14. Diattenuation pupil in full field of view after polarization ray tracing processing

Fig. 15. Retardance pupil in full field of view after polarization ray tracing processing

Fig. 16. Diattenuation pupil of freeform surface in full field of view

Fig. 17. Retardance pupil of freeform surface in full field of view