OPT OpenIR  > 光谱成像技术实验室
Research on the optical system of single-band all-sky airglow imager
Li, Zhantao1,2; Han, Bin1,2; Xiao, Yang1,2; Yu, Tingting1,2
2019
Conference Name9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics
Source Publication9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Meta-Surface-Wave and Planar Optics
Volume10841
Conference Date2018-06-26
Conference PlaceChengdu, China
PublisherSPIE
Contribution Rank1
Abstract

The middle and upper atmosphere is an important part of atmosphere of the earth. In this region, there are many photochemical phenomena and dynamical processes. One of the photochemical phenomena is airglow. When excited atmospheric molecule or atom transmits to lower level, the light with some wavelength will emit. The light is referred to as airglow. Airglow is therefore a powerful tool in investigations of atmospheric composition, temperature, and density in the emission region, and mass and energy movements to or from this region. Tracing the airglow emission, all-sky airglow imagers are widely used for imaging the atmospheric airglow. The characters of the imager are: wide field of view, fast, high resolution, low cost. This paper systematically studies the basic principle of the imager, completes the calculation of the key parameters, designs the optical system structure of the imager and optimizes the system image quality to obtain an ideal design result. The main contents can be list as follow. All-sky imaging technology records the optical phenomena in the 180° range above the ground plane with imaging and storage media. Use the fisheye lens to realize the 180° of the field of view. Different airglow layers correspond to different radiation peak heights. In order to obtain the atmospheric airglow signal at a certain height, it is necessary to filter the airglow radiation of different bands. The intensity of airglow information using narrow-band filter extraction feature height region of the upper atmosphere. High-sensitivity CCD were used to record all-sky airglow intensity distributions. The system consists of fisheye lens, telecentric imaging lens, filter, imaging lens and CCD. Through the analysis of recorded images, obtained observation data of regional atmospheric fluctuations of airglow height. The central wavelength of the imaging system is 630.5 nm, the bandwidth is 2 nm, the field of view is 180° the focal length is 5 mm, and the relative aperture is 1:1.9; The modulation transfers function (MTF) is more than 0.75 at the Nyquist spatial frequency of 37 lp/mm. The root-mean-square (RMS) radius of spot diagram is less than half of the pixel. 80% of the energy is enclosed in a pixel, and the uniformity of image illumination is 89%. The design requirements are satisfied. And based on the final design, the lens is simplified and the glass material is simplified. Finally, optimization of tolerance analysis is used to guide actual production. The final system structure compact, low cost, high resolution, suitable for airglow atmospheric radiation detection. © 2019 SPIE.

Department光谱成像技术实验室
DOI10.1117/12.2504967
Indexed ByEI ; CPCI
ISBN9781510623248
Language英语
ISSN0277786X;1996756X
WOS IDWOS:000461820700026
EI Accession Number20190706489092
Citation statistics
Document Type会议论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31251
Collection光谱成像技术实验室
Affiliation1.Xi'an Institute of Optics Precision Mechanic, Chinese Academy of Sciences, Xi'an, Shanxi; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Li, Zhantao,Han, Bin,Xiao, Yang,et al. Research on the optical system of single-band all-sky airglow imager[C]:SPIE,2019.
Files in This Item:
File Name/Size DocType Version Access License
Research on the opti(470KB)会议论文 开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li, Zhantao]'s Articles
[Han, Bin]'s Articles
[Xiao, Yang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, Zhantao]'s Articles
[Han, Bin]'s Articles
[Xiao, Yang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, Zhantao]'s Articles
[Han, Bin]'s Articles
[Xiao, Yang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.