通过柱面反射镜调整光谱仪子午面与弧矢面光焦度，有效地校正了系统的像散。同时分析了Czerny-Turner结构成像光谱仪的球差、彗差及校正方法，通过控制系统F数校正球差，通过控制准直镜与聚焦镜的离轴角达到校正彗差的目的。利用基于蒙特卡罗方法的成像光谱仪的公差分析方法，设计了一套成像光谱仪样机，样机的工作波段为200～700 nm，在紫外波段和可见光宽波段范围内均实现了像差的校正，狭缝方向上空间分辨率达到320 pixel，光谱仪的焦距f′=100 mm，F数为5.2，全波段光谱分辨力优于2 nm。

By adjusting the difference of spectrometer focal power in tangential plane and sagittal plane with cylinder mirror, the astigmatism of the spectrometer is corrected. The sphere aberration and the coma of Czerny-Turner spectrometer is also analyzed. The sphere aberration is controlled by the F number of the optical system. The coma is corrected by adjusting off-axis angles of the collimation mirror and the focus mirror. A prototype of wide band cylinder mirror imaging spectrometer is developed using imaging spectrometer tolerance analysis method based on Monto-Carlo simulation. The prototype works in 200～700 nm, and its aberrations are also corrected in such wide band. The spatial resolution in slit direction is 320 pixel. The focal length of the prototype f′=100 mm and its F number is 5.2. The spectral resolution in whole band is smaller than 2 nm.