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本文讨论了自行研制的空间调制干涉成象光谱仪中入射狭缝离焦所带来的问题,推导了禹焦后的光程差表达式,讨论了它对干涉图的影响,得到该离焦量主要受空间分辨率限制的结论.
In this paper, the problems caused by the incident slit defocus in the space-modulated interferometric imaging spectrometer developed by ourselves are discussed. The expression of the optical path difference after Y-coke is deduced, and the influence on the interferogram is discussed. The defocus amount Mainly limited by the spatial resolution of the conclusion.