干涉成像光谱仪中宽谱段傅氏光学系统设计

设计了一种宽谱段前置光孔远心光学系统,其孔径光阑位于透镜组的焦面上,该设计集宽谱段自动复消色差、长工作距、前置光孔及远心等特点于一体. 讨论了这样一种特殊光组的设计. 选用国产牌号的光学玻璃配对,价格低廉且在校正色差后,自动校正宽谱段二级光谱,并实现了透镜组两侧同时具有长工作距. 设计结果表明,光学系统的残余二级光谱很容易控制在千分之一焦距以内,波面平行差小于0.000 22弧度.

Design of the Wide Bands Fourier Lens

A kind of wide wave band, collimated optical system was designed, which the aperture locates in the front focus. In this design, auto-corrected chromatic aberration, long work distance, front aperture and collimated rays were concentrated in one. In this thesis, all these were discussed. Glasses partner were selected in Chinese, it is very cheap, and after correct the chromatic, the secondary spectrum of this wide wave band optical system also were corrected. In the same time, the system realized the long work distance both in its front and back side. The result show that the residual secondary spectrum of the system is less than one thousandth focal length, and the parallel error of rays of the wavefront less than 0.000 22 rad.