Fig. 1. Schematic diagram of three-dimensional structure of AR optical system. (a) Free-form prism; (b) overall optical system with compensation prism added

Fig. 2. Structural constraints of free-form prism system

Fig. 3. Dataset generation process

Fig. 4. Deep learning network architecture

Fig. 5. Deep learning network training result

Fig. 6. Average RMS spot size results of 100 random samples

Fig. 7. Comparison of before and after optimization. (a) Model prediction results; (b) results after further optimization

Fig. 8. Optical path RMS point array results for deep learning network model training samples

Fig. 9. Selection of optimized projection optical path RMS point array results for deep learning network model training samples

Fig. 10. MTF results of optimized projection optical system

Fig. 11. Three-dimensional image optimized with compensating prism added

Fig. 12. Optimization of mesh distortion map of perspective optical system after selecting training examples for deep learning network models