Implementation of a large aperture hyperspectral imaging optical system

Zhuwei Zhang; Bin Wang; Baohua Wang; Ruicong He; Huan Li; Yongjian Wu

doi:10.1117/12.3016725

30 April 2024 Implementation of a large aperture hyperspectral imaging optical system

Zhuwei Zhang, Bin Wang, Baohua Wang, Ruicong He, Huan Li, Yongjian Wu

Proceedings Volume 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems; 131530O (2024) https://doi.org/10.1117/12.3016725
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China

Abstract

With continuous development, the hyperspectral imaging has become a hot topic in the field of remote sensing, since its enormous advantage in obtaining the material composition of atmosphere, land resources, battlefield environment and marine resources while observing the Earth in space. However, some challenges have hindered the application of space-based hyperspectral imaging system. To fulfill the requirements of the spectral imager especially for space use, the lightweight and stable structure is especially important. Here the implementation of a Large Aperture Hyperspectral Imaging Optical System is presented. The optical system achieves hyperspectral imaging from ultraviolet to infrared spectral bands. The different spectral bands share a large common aperture of Ø1.8m. A lightweight primary mirror is designed and supported by bipod structure. To keep the large distance between the primary mirror and second mirror, a Lightweight and high-strength truss has been applied. A hierarchical structure is adopt as the main structure of the whole system. With the diffraction gratings and optical slits, the image information of different spectral bands are detected by the different lines of pixels in a focal plane of planar array. By the creative works of the optical and mechanical design, a hyperspectral imaging optical system is implemented and shows the extensive application potential in space remote sensing.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhuwei Zhang, Bin Wang, Baohua Wang, Ruicong He, Huan Li, and Yongjian Wu "Implementation of a large aperture hyperspectral imaging optical system", Proc. SPIE 13153, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Technologies in Optical Systems, 131530O (30 April 2024); https://doi.org/10.1117/12.3016725

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KEYWORDS

Mirrors

Hyperspectral imaging

Design and modelling

Spectroscopy

Lightweight mirrors

Optical alignment

Remote sensing

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