根据水下环境主要监测要素的特征光谱分析了可采用的观测方法, 并給出对应的高光谱成像仪光学系统性能参数; 分别设计了望远镜和成像光谱系统并进行匹配, 望远镜以双高斯透射式系统为原型, 利用较少的光学材料种类完成像方远心优化; 成像光谱系统基于Dyson系统, 通过光程分析与透镜的添加实现了良好的光学性能, 并保证了工程的可实施性.最终设计系统在350~700 nm波段上实现了视场角为28°、F数为3、光谱分辨率为3.5 nm、系统空间分辨率为1 mrad的良好光学性能, 设计搭建的原理样机性能测试验证了设计理论的正确性.

The observation method is analyzed and the performances parameters of corresponding spectrometer are obtained based on the characteristic spectrums of the major elements in the underwater environment. The telescope and the imaging spectrometer are separately designed and coupled together. The telescope adopted double Gauss refractive system and realized optimization of the telecentric design with few optical materials. The imaging spectrometer based on the Dyson mounting also performed excellently with the analysis of optical path and the added lenses. The final design obtained the excellent performances that the field of view is 28°, the F number is 3, the spectral resolution is 3.5 nm, and the spatial resolution is 1 mrad in the waveband of 350 ~700 nm. The prototype verified the design theory.