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轻小型掩膜式光谱光学系统

Light and small mask spectral optical system

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摘要

掩膜式光谱仪通过分光镜,将入射场景分为空间维和光谱维两路分别采集,然后对其进行信息融合,实现光谱高动态视频信号的获取,在动态高光谱成像领域具有广泛的应用价值。为了解决掩膜式光谱仪轻小型化问题,针对光谱光学系统部分,进行镜片数量的精简化设计,采用光栅替换传统棱镜,在实现线性色散的同时使结构进一步紧凑。并针对光栅无用级次产生的杂散光问题进行分析,论证了系统设计的可行性。最终设计的系统在400~1 000 nm范围内,光谱分辨率均小于4 nm,全视场奈奎斯特频率处平均调制传递函数(MTF)均大于0.4,像面照度均匀性高于0.9,实现良好像质;同时杂散光产生的信噪比为0.06,不影响光谱信息的采集。

Abstract

The mask spectrometer uses the beam splitter to separate the incident scene into two dimensions: spatial dimension and spectral dimension, then information fusion is used to achieve high spectral resolution of dynamic video signal acquisition. It has wide application value in the field of dynamic hyperspectral imaging. In order to solve the problem of miniaturization of mask spectrometer, for the part of the spectral optical system simplified design of the number of lenses, and the conventional prism was replaced by the grating, the linear dispersion was realized while the structure was further compacted. The problem of stray light generated by the unwanted stages of the grating was analyzed, and the feasibility of the system design was demonstrated. Finally, in the range of 400-1 000 nm, the spectral resolution was less than 4 nm, the average modulation transfer function (MTF) at the full field of view Nyquist frequency was greater than 0.4, and the image illumination uniformity was higher than 0.9, achieved good image quality. Meanwhile, the SNR generated by stray light was 0.06, which did not affect the collection of spectral information.

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中图分类号:O439

DOI:10.3788/IRLA202049.0414001

基金项目:北京市科技计划课题(Z181100003018003)

收稿日期:2019-12-02

修改稿日期:--

网络出版日期:2020-05-27

作者单位    点击查看

李鹏达:长春理工大学 光电测控与光信息传输技术教育部重点实验室,吉林 长春 130022
胡源:长春理工大学 光电测控与光信息传输技术教育部重点实验室,吉林 长春 130022
钟晓明:北京空间机电研究所 先进光学遥感技术北京市重点实验室,北京 100094
王旭:长春理工大学 光电测控与光信息传输技术教育部重点实验室,吉林 长春 130022
王月旗:长春理工大学 光电测控与光信息传输技术教育部重点实验室,吉林 长春 130022
李轶庭:长春理工大学 光电测控与光信息传输技术教育部重点实验室,吉林 长春 130022
骆强:西安现代控制技术研究所,陕西 西安 710000

备注:北京市科技计划课题(Z181100003018003)

【1】X Cao, H Du and X Tong. A prism-mask system for multispectral video acquisition. IEEE Transactions on Pattern Analysis and Machine Intelligence. 33(12), 2423-2435(2011).

【2】Cao X, Tong X, Dai Q, et al. High resolution multispectral video capture with a hybrid camera system[C]Computer Vision Pattern Recognition (CVPR), 2011 IEEE Conference on. IEEE, 2011; 297304.

【3】刘兵, 刘英, 李灿, Bing Liu, Ying Liu and Can Li. Design of optical system for miniature visible/near-infrared real-time imaging spectrometer. Acta Optica Sinica. 35(6), (2015).

【4】杨国军, 齐向东, 于海利, Guojun Yang, Xiangdong Qi and Haili Yu. Development of mosaic technology for large-size reflective grating. Optics and Precision Engineering. 27(3), 542-551(2019).

【5】张天一, 朱永田, 侯永辉, Tianyi Zhang, Yongtian Zhu and Yonghui Hou. Construction of a LAMOST high resolution spectrograph. Chinese Optics. 12(1), 148-155(2019).

【6】陈伟, 郑玉权, 薛庆生, Wei Chen, Yuquan Zheng and Qingsheng Xue. Airborne imaging spectrometer with wide field of view and large relative-aperture. Optics and Precision Engineering. 23(1), 15-21(2015).

【7】陈晨曦阳, 金春水, 王君, Chenxiyang Chen, Chunshui Jin and Jun Wang. Design of a compact spectrometer under grazing incidence conditions for near- edge X-ray absorption spectroscopy. Chinese Optics. 11(2), 265-278(2018).

【8】袁立银, 谢佳楠, 侯佳, Liyin Yuan, Jianan Xie and Jia Hou. Optical design of compact infrared imaging spectrometer. Infrared and Laser Engineering. 47(4), (2018).

【9】姚雪峰, 崔继承, 尹禄, Xuefeng Yao, Jicheng Cui and Lu Yin. Calibration devices for band range of echelle spectrometer. Optics and Precision Engineering. 25(2), 304-311(2017).

【10】张天一, 侯永辉, 徐腾, Tianyi Zhang, Yonghui Hou and Teng Xu. Stray light analysis on LAMOST high-resolution spectrograph. Infrared and Laser Engineering. 48(1), (2019).

引用该论文

Pengda Li,Yuan Hu,Xiaoming Zhong,Xu Wang,Yueqi Wang,Yiting Li,Qiang Luo. Light and small mask spectral optical system[J]. Infrared and Laser Engineering, 2020, 49(4): 0414001

李鹏达,胡源,钟晓明,王旭,王月旗,李轶庭,骆强. 轻小型掩膜式光谱光学系统[J]. 红外与激光工程, 2020, 49(4): 0414001

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