輕小型高光譜成像儀前置望遠(yuǎn)系統(tǒng)設(shè)計(jì)
[Abstract]:Light and small, high resolution has become the development trend of hyperspectral imagers. Based on the structural characteristics of the Offner spectral imaging system, this paper analyzes the design particularity of the front view system of the hyperspectral imager, and gives a long focal length by using the geometric optics theory of the coaxial reflection system. The design idea and design result of the front lookaway from the axis of the hyperspectral imager with large field of view and the design results show that the focal length of the optical system is 2 500 mm, and the field angle of view reaches 12 擄. The analysis shows that the modulation transfer function at Nyquist frequency 71.4-line pair / mm is close to the diffraction limit, and the structure is compact, which is suitable not only for the front-end optical system of the Offner spectrometer, but also for other large-field telecentric optical systems.
【作者單位】: 北京空間機(jī)電研究所;
【分類號(hào)】:TH744.1
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