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本发明提供一种用于超光谱成像应用的甚宽带光栅光谱仪。这种光栅光谱仪结构紧凑,工作效率高。由于它采用了一种可同时在两个波段进行成像的红外焦平面列阵,因而扩大了可有效采样的波长范围。同采用单波段红外焦平面列阵的常规光栅光谱仪相比较,它不仅提高了工作效率,而且还允许两个重叠的光栅级(光谱)照射在双波段红外焦平面列阵上。 本专利文献共7页,其中有4张插图。
The present invention provides a very wide band grating spectrometer for use in hyperspectral imaging applications. This grating spectrometer compact structure, high efficiency. Because it uses an array of infrared focal plane arrays that can be imaged in both bands at the same time, it extends the range of wavelengths that can be effectively sampled. Compared to conventional grating spectrometers using single-band infrared focal plane arrays, it not only improves work efficiency but also allows two overlapping grating levels (spectra) to be illuminated on dual-band IR focal plane arrays. This patent document has a total of 7 pages, of which 4 illustrations.