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介绍一种新型推扫型的宽视场成像光谱仪。可见探测波段(0.4-1.04μm),采用5个子模块进行视场拼接,每个子模块视场为14°,拼接后总成像视场70°,瞬时视场250μ rad,噪声等效反射率0.05%。短波波段(1.55～1.64μm)采用2个子模块进行视场拼接,每个子模块视场为35°,视场拼接后总成像视场70°,瞬时视场500μrad,噪声等效反射率0.05%。热红外波段(8～10.0μm)采用2个子模块进行视场拼接,每个子模块视场为35°,视场拼接后总成像视场70°,瞬时视场500μrad,噪声等效温差0.1K。可见波段采用光栅分光,采用可编程技术,中心波长和带宽可选,光谱分辨率5～40 nm,短波红外、热红外都用滤光片分光。各波段都采用透射镜头。仪器具有积分时间长灵敏度高、没有谱线弯曲现象光谱分辨率高、短波与热红外采用视场拼接方案可以降低长线列探测器研制难度等诸多优点。
A new push-scan type wide-field imaging spectrometer is introduced. The visible waveband (0.4-1.04μm) is visible, and 5 submodules are used for field stitching. The field of view of each submodule is 14 °, the total imaging field of view is 70 ° after splicing, the instantaneous field of view is 250μ rad, the equivalent reflectivity of noise is 0.05% . The short wave band (1.55 ~ 1.64μm) uses two submodules for field stitching. The field of view of each submodule is 35 °. The total imaging field of view after stitching is 70 °. The instantaneous field of view is 500μrad and the equivalent reflectivity of noise is 0.05%. The thermal infrared band (8 ~ 10.0μm) is composed of two submodules. The field of view of each submodule is 35 °. The total imaging field of view is 70 ° after stitching. The instantaneous field of view is 500μrad. The equivalent noise temperature difference is 0.1K. The visible wavelength band grating, the use of programmable technology, the center wavelength and bandwidth options, spectral resolution of 5 ~ 40 nm, short-wave infrared, thermal infrared filters are used spectroscopy. Transmission bands are used in all bands. The instrument has the advantages of long integration time, high sensitivity, no spectral curve phenomenon, high spectral resolution, short wave and thermal infrared field stitching scheme can reduce the difficulty of long line detectors and many other advantages.