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题名:
Optical system design of space fisheye lens and performance analysis
作者: Geng, Dan1,2; Yang, Hong-Tao2; Mei, Chao2; Li, Ya-Hui1,2
出版日期: 2017
会议名称: Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017
会议日期: 2017-06-04
会议地点: Beijing, China
DOI: 10.1117/12.2285587
英文摘要:

In order to reduce the number of cameras which are equipped in spacecraft, and using a small amount of cameras to monitor the whole spacecraft, an optical system of fisheye lens is designed based on the principle of non-similarity. The optical system uses a high definition CCD which has 1920×1080 pixels (the size of pixel is 5.5μm×5.5μm). The effective focal length of the fisheye optical system is 5.0 mm, the F number is 5.0, and the full field of view (FOV) is 180°. Its modulation transfer function (MTF) in all FOV is more than 0.5 at 91 lp/mm with great image. And the relative illumination of marginal FOV reaches 85.2%, this guarantees that the optical system has a good of illumination uniformity. Taken into account that the camera will be used in the intricate space environment, the article was analyzed the influence of environmental factors, the changing temperatures and vacuum environment, on the imaging quality of the optical system. The results show that the optical system of fisheye lens still has good imaging performance under the temperature -40?~+60? in vacuum environment. In the imaging process, the stray light which likes a red ring has been found at the edge of the image when the strong light source appeared in the middle of the image, it is similar to a positive ghost. After analysis, the results show that stray light mainly comes from the reflected light among the lens surfaces. So, there is a proposal that the radius of these lens surfaces should be restricted under optimization. Through the further optimizing and experiment, the consequence proves that the stray light was successfully eliminated. © 2017 SPIE.

收录类别: EI ; ISTP
会议录: AOPC 2017: Optical Sensing and Imaging Technology and Applications
会议录出版者: SPIE
语种: 英语
作者部门: 动态光学成像研究室
卷号: 10462
产权排序: 1
ISBN号: 9781510614055
ISSN号: 0277786X
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.opt.ac.cn/handle/181661/29924
Appears in Collections:动态光学成像研究室_会议论文

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作者单位: 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China
2.University of Chinese Academy of Sciences, Beijing, 100049, China

Recommended Citation:
Geng, Dan,Yang, Hong-Tao,Mei, Chao,et al. Optical system design of space fisheye lens and performance analysis[C]. 见:Applied Optics and Photonics China: Optical Sensing and Imaging Technology and Applications, AOPC 2017. Beijing, China. 2017-06-04.
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文件名: Optical system design of space fisheye lens and performance analysis.pdf
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