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《Optics and Precision Engineering》 2006-06
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Tradeoff optimization design of optical configuration on imaging spectrometer

LI You-ping~(1,3),YU Bing-xi~2,HAN Chang-yuan~2,LI Zhu~(2,3)(1.Beijing Institute of Geography Information,Beijing 100011,China;2.State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;3.Graduate School of the Chinese Academy of Science,Beijing 100039,China)  
Using the tradeoff optimization of the application requirement and the available technology,an optimized optical system was introduced to design a new type of imaging spectrometer consisting of a three-mirror-off-axis anastigmat(TMA),a dispersive prism and an asphere mirror collimating and imaging system.This kind of imaging spectrometer works over the spectral region of 0.4~2.5 μm and the focal length is 800 mm,FN=4.5,FOV=1.43°,the MTF can reach 0.44~0.62,spectrum resolution is about 3~23 nm,and the total mass is about 70 kg.While the FN must be within 3 and the total mass will reach 100 kg if uses the type of imaging spectrometer of grating or interference Fourier transform spectrometer at the condition of the same properties of focal plane elements and SNR.It is showed that the system has an optimum configuration in high resolutions of ground and spectrum,short integral time and low accepted radiant energy,it can be used in selecting the optical configuration especially.
【Fund】: 国家自然科学基金资助项目(No.40675083)
【CateGory Index】: TH744.1
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