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题名:
Design and Study of Middle Infrared Spectrum System with Variational Field of View
作者: Bai Yu1,2,3; Xing Ting-wen1; Jiang Ya-dong2; Feng Cheng4
刊名: SPECTROSCOPY AND SPECTRAL ANALYSIS
出版日期: 2014-08-01
卷号: 34, 期号:8, 页码:2293-2297
关键词: Infrared spectrum ; Large focal plane array ; Variational field of view
文章类型: Article
英文摘要: In order to track and capture target at the same time with a set of equipment, a middle infrared spectrum variational field of view(fov) detection system with a large focal plane array was designed for a 640x512 novel large focal plane array infrared detector with the picture element size of 15 m x 15 in. The spectrum range was 3.7 similar to 4.8 m, F number was 4.0, narrow FOV and wide FOV was 0.45 and 0.90 respectively. The manner of variational FOV was accomplished by pitching two lenses into the narrow FOV system layout with mechanism framework. Reimaging technology not only minished the diameter of front fixed group, but also met 100% cold shield efficiency to minish stray light into the infrared detector. Two common infrared materials Ge and Si were used in the variational FOV detection system. The aspheric technology was used in order to correct the off axis aberration and higher order aberration and assure the fixedness of image plane. At the spatial frequency 33 lp.mm(-1), the modulation transfer function(MTF) was above 0.2 for both the narrow FOV and wide FOV. Moreover, the distortion is below 0.5%. The middle infrared spectrum variational FOV detection system has excellent image. The image quality of the middle infrared spectrum variational field of view detection system changed little in the working temperature range -35 similar to 55 degrees C.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Spectroscopy
研究领域[WOS]: Spectroscopy
收录类别: SCI
语种: 英语
WOS记录号: WOS:000339930600055
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2417
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Univ Elect Sci & Technol China, Chengdu 610054, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chengdu CSG Glass Co Ltd, Chengdu 610200, Peoples R China

Recommended Citation:
Bai Yu,Xing Ting-wen,Jiang Ya-dong,et al. Design and Study of Middle Infrared Spectrum System with Variational Field of View[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2014,34(8):2293-2297.
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