Optical System Design of Full-Spectrum Hyperspectral Imaging Spectrometer

doi:10.3788/AOS202242.2322001

CIOMP OpenIR

	Optical System Design of Full-Spectrum Hyperspectral Imaging Spectrometer
	J. Ma; J. Zhang; C. Wu; X. Li; T. Lu and B. Yang
	2022
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	2532239
卷号	42 期号:23
摘要	In order to meet the integrated application requirements of full-spectrum hyperspectral imaging and detection, this paper designs a visible-to-long-wave infrared (LWIR) co-aperture imaging spectrometer. The front image square telecentric objective is realized by an off-axis three-mirror structure, and the spectrum is divided into four segments by the field of view separation and beam splitter. The post spectrometer adopts an Offner structure with asymmetric convex grating, and the magnifications of the middle-wave infrared (MWIR) and LWIR spectrometers are set to 0.90 and 0.61, so as to meet the requirements of design specification and imaging quality. The design and analysis results show that the proposed system achieves a ground coverage width of 30 km at an orbital height of 600 km. The F number of visible spectral band to short-wave infrared (SWIR) spectral band is 2.6, and resolutions of visible/near infrared (VNIR) and SWIR are better than 5 nm and 10 nm, respectively, with a pixel resolution of 30 m. The F number of the MWIR and LWIR spectral bands is 2.3 and 1.5, respectively, and their spectral resolutions are better than 50 nm and 100 nm, with a pixel resolution of 50 m and 74 m. The modulation transfer function (MTF) of each spectral band is close to the diffraction limit at the Nyquist frequency, and the spectral line curvature and color distortion are less than 1/10 of the detector's pixel size. 2022 Chinese Optical Society. All rights reserved.
DOI	10.3788/AOS202242.2322001
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收录类别	ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66945
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Ma,J. Zhang,C. Wu,et al. Optical System Design of Full-Spectrum Hyperspectral Imaging Spectrometer[J]. Guangxue Xuebao/Acta Optica Sinica,2022,42(23).
APA	J. Ma,J. Zhang,C. Wu,X. Li,&T. Lu and B. Yang.(2022).Optical System Design of Full-Spectrum Hyperspectral Imaging Spectrometer.Guangxue Xuebao/Acta Optica Sinica,42(23).
MLA	J. Ma,et al."Optical System Design of Full-Spectrum Hyperspectral Imaging Spectrometer".Guangxue Xuebao/Acta Optica Sinica 42.23(2022).

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