Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System
In this paper, we propose a zoom auxiliary imaging lens based on the four-component mechanical zoom method for a modulation transfer function (MTF) test system. The auxiliary imaging lenses of the current MTF test system typically use fixed-focus optical systems, which are unable to meet the test sc...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/12/1/53 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832587663353315328 |
|---|---|
| author | Yicheng Sheng Sihan Xu Caishi Zhang Binghua Su Dingxiang Cao Zhe Chen |
| author_facet | Yicheng Sheng Sihan Xu Caishi Zhang Binghua Su Dingxiang Cao Zhe Chen |
| author_sort | Yicheng Sheng |
| collection | DOAJ |
| description | In this paper, we propose a zoom auxiliary imaging lens based on the four-component mechanical zoom method for a modulation transfer function (MTF) test system. The auxiliary imaging lenses of the current MTF test system typically use fixed-focus optical systems, which are unable to meet the test scenarios of fast and batch measurement and measure lenses with an extensive focal length range. Compared with the fixed-focus auxiliary imaging lens, the zoom auxiliary imaging lens can simultaneously satisfy the measurement of wide-angle and telephoto miniature lenses without losing measurement accuracy. The entrance pupil distance of the zoom lens is greater than that of traditional lenses, and it is constant for each focal length of the zoom lens. The zoom lens uses an intermediate real image surface to obtain the perfect image quality and lower the diameter of the rear group. Additionally, the zoom lens dynamically adjusts magnification to optimize image size and align with the detector’s pixel resolution, thereby preventing undersampling and enhancing measurement precision. The optical design is optimized for stability, delivering high resolution and minimal aberrations across the zoom range. The image quality of the zoom lens is nearly at the diffraction limit at each focal length, which significantly reduces the impact of the auxiliary lens on MTF test results, enhancing both flexibility and accuracy. This design is particularly well suited for testing miniature lenses in optoelectronic technology applications. |
| format | Article |
| id | doaj-art-a618fa0b5d234465b9f91d20ed497c8c |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-a618fa0b5d234465b9f91d20ed497c8c2025-01-24T13:46:20ZengMDPI AGPhotonics2304-67322025-01-011215310.3390/photonics12010053Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test SystemYicheng Sheng0Sihan Xu1Caishi Zhang2Binghua Su3Dingxiang Cao4Zhe Chen5College of Physics & Optoelectronic Engineering, Jinan University, Guangzhou 510632, ChinaBeijing Institute of Technology, Zhuhai 519088, ChinaCollege of Physics & Optoelectronic Engineering, Jinan University, Guangzhou 510632, ChinaBeijing Institute of Technology, Zhuhai 519088, ChinaZhuhai Emgo-Tech Co., Ltd., Zhuhai 519000, ChinaCollege of Physics & Optoelectronic Engineering, Jinan University, Guangzhou 510632, ChinaIn this paper, we propose a zoom auxiliary imaging lens based on the four-component mechanical zoom method for a modulation transfer function (MTF) test system. The auxiliary imaging lenses of the current MTF test system typically use fixed-focus optical systems, which are unable to meet the test scenarios of fast and batch measurement and measure lenses with an extensive focal length range. Compared with the fixed-focus auxiliary imaging lens, the zoom auxiliary imaging lens can simultaneously satisfy the measurement of wide-angle and telephoto miniature lenses without losing measurement accuracy. The entrance pupil distance of the zoom lens is greater than that of traditional lenses, and it is constant for each focal length of the zoom lens. The zoom lens uses an intermediate real image surface to obtain the perfect image quality and lower the diameter of the rear group. Additionally, the zoom lens dynamically adjusts magnification to optimize image size and align with the detector’s pixel resolution, thereby preventing undersampling and enhancing measurement precision. The optical design is optimized for stability, delivering high resolution and minimal aberrations across the zoom range. The image quality of the zoom lens is nearly at the diffraction limit at each focal length, which significantly reduces the impact of the auxiliary lens on MTF test results, enhancing both flexibility and accuracy. This design is particularly well suited for testing miniature lenses in optoelectronic technology applications.https://www.mdpi.com/2304-6732/12/1/53modulation transfer functionoptical metrologyzoom auxiliary imaging lensimaging performancelens design |
| spellingShingle | Yicheng Sheng Sihan Xu Caishi Zhang Binghua Su Dingxiang Cao Zhe Chen Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System Photonics modulation transfer function optical metrology zoom auxiliary imaging lens imaging performance lens design |
| title | Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System |
| title_full | Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System |
| title_fullStr | Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System |
| title_full_unstemmed | Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System |
| title_short | Zoom Auxiliary Imaging Lens Design for a Modulation Transfer Function Test System |
| title_sort | zoom auxiliary imaging lens design for a modulation transfer function test system |
| topic | modulation transfer function optical metrology zoom auxiliary imaging lens imaging performance lens design |
| url | https://www.mdpi.com/2304-6732/12/1/53 |
| work_keys_str_mv | AT yichengsheng zoomauxiliaryimaginglensdesignforamodulationtransferfunctiontestsystem AT sihanxu zoomauxiliaryimaginglensdesignforamodulationtransferfunctiontestsystem AT caishizhang zoomauxiliaryimaginglensdesignforamodulationtransferfunctiontestsystem AT binghuasu zoomauxiliaryimaginglensdesignforamodulationtransferfunctiontestsystem AT dingxiangcao zoomauxiliaryimaginglensdesignforamodulationtransferfunctiontestsystem AT zhechen zoomauxiliaryimaginglensdesignforamodulationtransferfunctiontestsystem |