Design of hybrid refractive-diffractive star sensor optical system with wide field and small F-number
文献类型：会议论文
| 作者 | Ma, Zehua1,2; Wang, Hu1,2 ; Shen, Yang1,2; Xue, Yaoke1,2; Yan, Haoyu1,2
|
| 出版日期 | 2021 |
| 会议日期 | 2021-06-20 |
| 会议地点 | Beijing, China |
| 关键词 | optical design star sensor hybrid refractive-diffractive asphere large field of view |
| 卷号 | 12069 |
| DOI | 10.1117/12.2606601 |
| 英文摘要 | In order to improve the measurement accuracy and detection ability of the star sensor, this paper uses a double Gauss structure with conic aspheric surface and hybrid refractive-diffractive to design an optical system with large field of view of 25°and large relative aperture of 1/1.156, and only 6 lenses are used. First, According to the selected CMOS APS sensor performance parameters, the entrance pupil diameter, field of view, focal length and wavelength range are determined. The field of view is 25°, F number is 1.156, focal length is 52mm, entrance pupil diameter is 45mm, the wavelength range is 500-800nm. The detection of 6 magnitude stars is realized, the probability of capturing 5 navigation stars is 100%, and autonomous navigation recognition is realized. Then, the glass material selection and structure optimization of the optical system are conducted, the optical system is optimized by introducing two conic aspheric surfaces and a diffractive surface. Finally, the influence of the diffraction efficiency of the diffractive optical element on the signal-To-noise ratio is analyzed. After analysis of image quality, the shape of diffuse spot in each field of view is approximately circular, the energy is close to Gaussian distribution, more than 90% of the energy is concentrated in 3×3 pixels, lateral color is less than 1.06μm, and relative distortion is less than 0.87%. The optical system only uses six lenses, the imaging quality meets the imaging requirements of the star sensor, and is beneficial to improve the accuracy and detection capability of the star sensor. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. |
| 产权排序 | 1 |
| 会议录 | AOPC 2021: Novel Technologies and Instruments for Astronomical Multi-Band Observations
 |
| 会议录出版者 | SPIE |
| 语种 | 英语 |
| ISSN号 | 9781510650138 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/95667]  |
| 专题 | 西安光学精密机械研究所_空间光学应用研究室 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing; 100049, China 2.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Shaanxi; Xi'an; 710119, China; |
| 推荐引用方式 GB/T 7714 | Ma, Zehua,Wang, Hu,Shen, Yang,et al. Design of hybrid refractive-diffractive star sensor optical system with wide field and small F-number[C]. 见:. Beijing, China. 2021-06-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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