28 May 2018 The compact light-weighted hyperspectral imager based on curved prisms: calibration and laboratory test
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Abstract
The prototype of compact light-weighted hyperspectral imager based on the compact Offnerspectrometer is introduced. Two curved prisms are designed to disperse the incident light in the optical system with the benefits of low smile, keystone and lateral distortion. It has 148 spectral bands covering spectral range from 420 to 1000nm, the ground sampling distance is 50m@700km, and the swath width is 100km. But the weight is only 12.8kg, the outer dimensions are 362mm (X)* 343mm (Z)*139 mm (Y). As prisms are used for imaging spectrometer, the spectral sampling distance varies with wavelength. The width of the spectral response function varies from 1nm to 12nm. The mean bandwidth is less than 5nm. The sensor has achieved high performance levels in terms of signal to noise ratio(SNR), spectral calibration and image quality. It can be used for environmental and disaster monitoring.
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Juanjuan Jing, Juanjuan Jing, Yacan Li, Yacan Li, Jinsong Zhou, Jinsong Zhou, Lei Yang, Lei Yang, Lei Feng, Lei Feng, Xiaoying He, Xiaoying He, Lidong Wei, Lidong Wei, Xiaohan Wang, Xiaohan Wang, } "The compact light-weighted hyperspectral imager based on curved prisms: calibration and laboratory test", Proc. SPIE 10695, Optical Instrument Science, Technology, and Applications, 106950M (28 May 2018); doi: 10.1117/12.2314986; https://doi.org/10.1117/12.2314986
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