Fig. 1. Lead cone model. (a) Uncompressed; (b) after compression

Fig. 2. Correlation curve between r and δ

Fig. 3. Fitting curve of r and δ

Fig. 4. Dynamic stress-strain curve of lead

Fig. 5. Impact 3D model

Fig. 6. Acceleration graph

Fig. 7. Stress cloud map of the main mirror tube

Fig. 8. Main mirror tube stress curve

Fig. 9. Lens stress cloud map

Fig. 10. Lens stress curve

Fig. 11. Lens strain curve

Fig. 12. Impact test

Fig. 13. Impact test graph

Fig. 14. Mode diagrams of the first four constrained modes of the lens

Fig. 16. Maximum strain of lens in vibration analysis

Fig. 17. Vibration test

Fig. 18. Vibration test graph

Fig. 19. Stress diagram of guide pin and cam cylinder

Fig. 20. Stress diagram of guide pin and main lens barrel

Fig. 21. Force diagram of zoom lens holder and main lens barrel

Fig. 22. Calculation flow chart

Fig. 23. Motor gear

Fig. 24. Gear on cam barrel

Fig. 25. Curve diagram of middle cam

Fig. 26. Curve diagram of cams at both ends

Fig. 27. Cam barrel

Fig. 28. High and low temperature test

Fig. 32. Deformation nephograms after applying harmonic load in X, Y and Z directions