Design of visible light / LWIR dual-band common aperture imaging optical system | |
Ma, Zhanpeng1,2; Wang, Hu1,2; Shen, Yang1,2; Wang, Fang1,2; Xue, Yaoke1 | |
2019 | |
会议名称 | Applied Optics and Photonics China 2019: Space Optics, Telescopes, and Instrumentation, AOPC 2019 |
会议录名称 | AOPC 2019: Space Optics, Telescopes, and Instrumentation |
卷号 | 11341 |
会议日期 | 2019-07-07 |
会议地点 | Beijing, China |
出版者 | SPIE |
产权排序 | 1 |
摘要 | Dual-band imaging system can effectively improve the detection and identification capability for airborne camera. To ensure the system with compact structure and without increasing the complication of the design, a catadioptric system is proposed as an alternative where the visible light and long-wave infrared (LWIR) share the mutual aperture and adding a dichroic beam splitter between the primary and secondary mirrors enables simultaneous imaging of the two bands. The common aperture is achieved by sharing a modified Cassegrain reflection structure in both bands. The entrance pupil diameter for the two bands is 148mm and their field of view (FOV) is 3°. The visible light works in the range of 0.51/40.8μm and the focal length is 304.2mm with 2048×2048 detector, and the pixel size is 5.5μm. The LWIR works in the range of 8μm1/414μm and the focal length is 205.3mm with 1024×768 infrared detector, and the pixel size is 14μm. The system aberration is well corrected in two bands and for the performance analysis of the system in the temperature range of 20±5‡C, the design results can meet the requirements. © 2019 SPIE. |
关键词 | Dual-band optical design common aperture visible light LWIR |
作者部门 | 空间光学技术研究室 |
DOI | 10.1117/12.2541742 |
收录类别 | EI ; CPCI |
ISBN号 | 9781510634541 |
语种 | 英语 |
ISSN号 | 0277786X;1996756X |
WOS记录号 | WOS:000525828600017 |
EI入藏号 | 20200408063332 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/93206 |
专题 | 空间光学技术研究室 |
作者单位 | 1.Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China |
推荐引用方式 GB/T 7714 | Ma, Zhanpeng,Wang, Hu,Shen, Yang,et al. Design of visible light / LWIR dual-band common aperture imaging optical system[C]:SPIE,2019. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Design of visible li(666KB) | 会议论文 | 限制开放 | CC BY-NC-SA | 请求全文 |
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