Fig. 1. Schematic diagram of positive group compensation and root replacement

Fig. 2. The zoom system structure map of paraxial analog

Fig. 3. 2D structure diagram of optical system

Fig. 4. MTF curves in visible light band

Fig. 5. MTF curves in near infrared band

Fig. 6. MTF curves at −40 ℃ in visible light band

Fig. 7. MTF curves at −40 ℃ in near infrared band

Fig. 8. MTF curves at 60 ℃ in visible light band

Fig. 9. MTF curves at 60 ℃ in near infrared band

Fig. 10. Diagram of optical distortion

Fig. 11. Diagram of system relative illuminance

Fig. 12. Cam curves of zoom system