Fig. 1. Diagram of common solution

Fig. 2. Diagram of solution in this paper

Fig. 3. System initial structural diagram

Fig. 4. Outline drawing of optical system

Fig. 5. MTF plots when magnification is -0.1375

Fig. 6. MTF plots when magnification is -0.275

Fig. 7. System distortion diagram when magnification is -0.1375

Fig. 8. System distortion diagram when magnification is -0.275

Fig. 9. Spot diagrams when magnification is -0.1375

Fig. 10. Spot diagrams when magnification is -0.275

Fig. 11. Monte Carlo simulation results. (a) Most influential tolerance and its position in structure 1 (magnification is -0.1375); (b) most influential tolerance and its position in structure 2 (magnification is -0.275); (c) MTF curves obtained by Monte Carlo simulation of structure 1 (magnification is -0.1375); (d) MTF curves obtained by Monte Carlo simulation of structure 2 (magnification is -0.275); (e) distortion curves obtained by Monte Carlo simulation of structure 1 (magnification is -0.1375); (f

Table 1. Imaging chip parameters

Table 2. System design parameters

Table 3. System telecentricity

Table 4. Tolerance range of optical system