Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation
Temperature variation not only results in changes in refractive index, radius, thickness, and air space, but also leads to surface deformation due to the mismatch in thermal expansion coefficients between glass and mechanical materials. However, existing passive athermal optical design methods canno...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/9/396 |
| _version_ | 1829091456511377408 |
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| author | Tao Liu Chong Wang Yi Yu Zhenyu Liu Fengyun He |
| author_facet | Tao Liu Chong Wang Yi Yu Zhenyu Liu Fengyun He |
| author_sort | Tao Liu |
| collection | DOAJ |
| description | Temperature variation not only results in changes in refractive index, radius, thickness, and air space, but also leads to surface deformation due to the mismatch in thermal expansion coefficients between glass and mechanical materials. However, existing passive athermal optical design methods cannot optimize thermal-induced surface deformation, and optimization methods usually focus on structural optimization or thermal control rather than optical optimization. Here, we investigate the deterioration in image quality caused by thermal-induced surface deformation and propose a passive athermal optical design method to reduce deterioration. To this end, MATLAB was utilized to jointly call finite element analysis (FEA) software (COMSOL) and optical design software (Code V) to realize the data exchange of an optical–mechanical–thermal integrated analysis for iterative optical optimization. This process makes automatic iterative optimization possible by transforming parametric FEA results into Zernike coefficients in each iteration of optimization. The theoretical and design examples indicate that our method can effectively reduce the degradation in image quality with surface deformation. Our method provides an optical optimization approach for optical designers to work on a passive athermal optical design by considering thermal-induced surface deformation. |
| first_indexed | 2024-03-10T07:17:43Z |
| format | Article |
| id | doaj.art-c7e26772d2d344b7b038f725113ce9ec |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T07:17:43Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-c7e26772d2d344b7b038f725113ce9ec2023-11-22T14:50:48ZengMDPI AGPhotonics2304-67322021-09-018939610.3390/photonics8090396Passive Athermal Optical Design Method Considering Thermal-Induced Surface DeformationTao Liu0Chong Wang1Yi Yu2Zhenyu Liu3Fengyun He4Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaTemperature variation not only results in changes in refractive index, radius, thickness, and air space, but also leads to surface deformation due to the mismatch in thermal expansion coefficients between glass and mechanical materials. However, existing passive athermal optical design methods cannot optimize thermal-induced surface deformation, and optimization methods usually focus on structural optimization or thermal control rather than optical optimization. Here, we investigate the deterioration in image quality caused by thermal-induced surface deformation and propose a passive athermal optical design method to reduce deterioration. To this end, MATLAB was utilized to jointly call finite element analysis (FEA) software (COMSOL) and optical design software (Code V) to realize the data exchange of an optical–mechanical–thermal integrated analysis for iterative optical optimization. This process makes automatic iterative optimization possible by transforming parametric FEA results into Zernike coefficients in each iteration of optimization. The theoretical and design examples indicate that our method can effectively reduce the degradation in image quality with surface deformation. Our method provides an optical optimization approach for optical designers to work on a passive athermal optical design by considering thermal-induced surface deformation.https://www.mdpi.com/2304-6732/8/9/396passive athermaloptical designsurface deformationFEAparametric modellingZernike coefficient |
| spellingShingle | Tao Liu Chong Wang Yi Yu Zhenyu Liu Fengyun He Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation Photonics passive athermal optical design surface deformation FEA parametric modelling Zernike coefficient |
| title | Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation |
| title_full | Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation |
| title_fullStr | Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation |
| title_full_unstemmed | Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation |
| title_short | Passive Athermal Optical Design Method Considering Thermal-Induced Surface Deformation |
| title_sort | passive athermal optical design method considering thermal induced surface deformation |
| topic | passive athermal optical design surface deformation FEA parametric modelling Zernike coefficient |
| url | https://www.mdpi.com/2304-6732/8/9/396 |
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