Xi'an Institute of Optics and Precision Mechanics,CAS
Optical design of a continuous zoom MWIR lens system with large field of view | |
Xiaopeng, Wei1,2; Liang, Xu1; Jinwei, Zhao1; Shaobo, Geng1 | |
2023 | |
会议名称 | 14th International Conference on Information Optics and Photonics, CIOP 2023 |
会议录名称 | Fourteenth International Conference on Information Optics and Photonics, CIOP 2023 |
卷号 | 12935 |
会议日期 | 2023-08-07 |
会议地点 | Xi'an, China |
出版者 | SPIE |
产权排序 | 1 |
摘要 | The aberration characteristics change with the relative position changes of zoom groups has been a key problem for continuous zoom lens design, especially those with large target surfaces. To diminish the aberration, in this study, we took a Positive-Negative-Positive-Positive(PNPP)Mechanical structure for optical compensation, and developed a continuous zoom MWIR lens system with 20x magnification. The system used a cooled detector with a large target surface of 1280×1024 pixel and a 12μm pixel size, which improved observing capability under a 66.5° field of view. We tested the transfer function of the system at Nyquist frequency, which is close to the diffraction limit in a 15~300mm zoom range and the full field of view. We further evaluated our system by ray tracing analysis, pressure angle analysis of the cam curve, and de-focusing amount analysis under a temperature range of -45℃ to +70℃. Results show that our system has a good suppression capability for cold reflection, high image quality under extreme thermal conditions, and a smooth zoom curve. © 2023 SPIE. |
关键词 | MWIR continuous zoom large FOV airborne |
作者部门 | 航空光电技术研究室 |
DOI | 10.1117/12.2692193 |
收录类别 | EI |
ISBN号 | 9781510671744 |
语种 | 英语 |
ISSN号 | 0277786X;1996756X |
EI入藏号 | 20235015220825 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/97076 |
专题 | 航空光电技术研究室 |
通讯作者 | Liang, Xu |
作者单位 | 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; 2.School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710062, China |
推荐引用方式 GB/T 7714 | Xiaopeng, Wei,Liang, Xu,Jinwei, Zhao,et al. Optical design of a continuous zoom MWIR lens system with large field of view[C]:SPIE,2023. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Optical design of a (551KB) | 会议论文 | 开放获取 | CC BY-NC-SA | 请求全文 |
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