Zihan Guan, Min Wang, Xiaotong Li. Tolerance desensitization method based on principal component analysis and nodal aberration theory[J]. Infrared and Laser Engineering, 2024, 53(2): 20230590
- Infrared and Laser Engineering
- Vol. 53, Issue 2, 20230590 (2024)
Fig. 1. Asymmetric perturbation model
Fig. 2. Axial perturbation model
Fig. 3. Workflow of tolerance sensitivity reduction
Fig. 4. Layout of Structure 1
Fig. 5. Distribution of eigenvalues
Fig. 6. Zernike coefficients distribution of main eigenvectors
Fig. 7. Weight distribution of induced aberrations in Structure 1
Fig. 8. Distribution of induced coma on different surfaces
Fig. 9. MTF performance before and after optimization of Structure 1 (>98% MTF@36 lp/mm)
Fig. 10. Layout of Structure 2
Fig. 11. Weight distribution of induced aberrations in Structure 2
Fig. 12. Distribution of induced axial aberration on different surfaces
Fig. 13. MTF performance of Structure 2 (>90% MTF@180 lp/mm)
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Table 1. Several types of induced aberration
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Table 2. System parameters of Structure 1
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Table 3. Tolerance setting and performance of Structure 1 (36 lp/mm@ MTF, on-axis)
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Table 4. System parameters of Structure 2
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Table 5. Tolerance setting and nominal performance of Structure 2 (180 lp/mm@ MTF, on-axis)
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