Design and Research of Large-Scale Curvature Adjustment Optical Mirror
This study introduces an optimization design method for large-scale curvature-adjustable optical mirrors, innovatively integrating parametric modeling with the optimized layout of actuators, targeting the achievement of extensive curvature adjustability and high-precision surface correction for segm...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/12/4/338 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850180677435129856 |
|---|---|
| author | Kailun Zhao Liuxing Song Dewei Sun Qiaolin Huang Rongguang Guo Guoliang Tian Jinping He |
| author_facet | Kailun Zhao Liuxing Song Dewei Sun Qiaolin Huang Rongguang Guo Guoliang Tian Jinping He |
| author_sort | Kailun Zhao |
| collection | DOAJ |
| description | This study introduces an optimization design method for large-scale curvature-adjustable optical mirrors, innovatively integrating parametric modeling with the optimized layout of actuators, targeting the achievement of extensive curvature adjustability and high-precision surface correction for segmented mirrors. The optimization objective is based on the surface figure residual when the curvature radius of the segmented mirror is altered by 100 mm. Through the optimization of the number, arrangement, and thickness of reinforcement ribs of the actuators on the back of the segmented mirror, a parametric model of a segmented mirror with an edge-to-edge distance of 510 mm and a radius of curvature 9100 mm is developed. Simulation outcomes reveal that a 0–15 μm variation in the actuators results in a curvature radius change of 178.45 mm in the segmented mirror, with a highly linear correlation, achieving a radius of curvature reconfiguration of the primary mirror in the optical system from 9100 mm to 9000 mm, with a residual surface figure error of less than 10 nm. The experimental results indicate that within a 0–15 μm closed-loop stroke range, the curvature radius of the segmented mirror can be adjusted by 146.89 mm, fulfilling the design objective of a lightweight mirror with a significantly adjustable curvature radius. This research is anticipated to offer technical support and serve as a reference for the assembly, adjustment, and inspection of large-aperture segmented mirrors, as well as for the curvature radius variation in multiple segmented mirrors, thereby holding substantial practical value in engineering applications. |
| format | Article |
| id | doaj-art-dd9d60bc2f70425f8d0d79b94fdb6324 |
| institution | OA Journals |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-dd9d60bc2f70425f8d0d79b94fdb63242025-08-20T02:18:04ZengMDPI AGPhotonics2304-67322025-04-0112433810.3390/photonics12040338Design and Research of Large-Scale Curvature Adjustment Optical MirrorKailun Zhao0Liuxing Song1Dewei Sun2Qiaolin Huang3Rongguang Guo4Guoliang Tian5Jinping He6Beijing Institute of Space Mechanics & Electricity, Beijing 100094, ChinaCollege of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaBeijing Institute of Space Mechanics & Electricity, Beijing 100094, ChinaBeijing Institute of Space Mechanics & Electricity, Beijing 100094, ChinaBeijing Institute of Space Mechanics & Electricity, Beijing 100094, ChinaBeijing Institute of Space Mechanics & Electricity, Beijing 100094, ChinaBeijing Institute of Space Mechanics & Electricity, Beijing 100094, ChinaThis study introduces an optimization design method for large-scale curvature-adjustable optical mirrors, innovatively integrating parametric modeling with the optimized layout of actuators, targeting the achievement of extensive curvature adjustability and high-precision surface correction for segmented mirrors. The optimization objective is based on the surface figure residual when the curvature radius of the segmented mirror is altered by 100 mm. Through the optimization of the number, arrangement, and thickness of reinforcement ribs of the actuators on the back of the segmented mirror, a parametric model of a segmented mirror with an edge-to-edge distance of 510 mm and a radius of curvature 9100 mm is developed. Simulation outcomes reveal that a 0–15 μm variation in the actuators results in a curvature radius change of 178.45 mm in the segmented mirror, with a highly linear correlation, achieving a radius of curvature reconfiguration of the primary mirror in the optical system from 9100 mm to 9000 mm, with a residual surface figure error of less than 10 nm. The experimental results indicate that within a 0–15 μm closed-loop stroke range, the curvature radius of the segmented mirror can be adjusted by 146.89 mm, fulfilling the design objective of a lightweight mirror with a significantly adjustable curvature radius. This research is anticipated to offer technical support and serve as a reference for the assembly, adjustment, and inspection of large-aperture segmented mirrors, as well as for the curvature radius variation in multiple segmented mirrors, thereby holding substantial practical value in engineering applications.https://www.mdpi.com/2304-6732/12/4/338segmented mirrorcurvature radius adjustmentparametric modelingactuatorsreconfiguration of large-aperture optical systems |
| spellingShingle | Kailun Zhao Liuxing Song Dewei Sun Qiaolin Huang Rongguang Guo Guoliang Tian Jinping He Design and Research of Large-Scale Curvature Adjustment Optical Mirror Photonics segmented mirror curvature radius adjustment parametric modeling actuators reconfiguration of large-aperture optical systems |
| title | Design and Research of Large-Scale Curvature Adjustment Optical Mirror |
| title_full | Design and Research of Large-Scale Curvature Adjustment Optical Mirror |
| title_fullStr | Design and Research of Large-Scale Curvature Adjustment Optical Mirror |
| title_full_unstemmed | Design and Research of Large-Scale Curvature Adjustment Optical Mirror |
| title_short | Design and Research of Large-Scale Curvature Adjustment Optical Mirror |
| title_sort | design and research of large scale curvature adjustment optical mirror |
| topic | segmented mirror curvature radius adjustment parametric modeling actuators reconfiguration of large-aperture optical systems |
| url | https://www.mdpi.com/2304-6732/12/4/338 |
| work_keys_str_mv | AT kailunzhao designandresearchoflargescalecurvatureadjustmentopticalmirror AT liuxingsong designandresearchoflargescalecurvatureadjustmentopticalmirror AT deweisun designandresearchoflargescalecurvatureadjustmentopticalmirror AT qiaolinhuang designandresearchoflargescalecurvatureadjustmentopticalmirror AT rongguangguo designandresearchoflargescalecurvatureadjustmentopticalmirror AT guoliangtian designandresearchoflargescalecurvatureadjustmentopticalmirror AT jinpinghe designandresearchoflargescalecurvatureadjustmentopticalmirror |