Fery棱镜是一种变化的棱镜。利用Fery棱镜作为主要色散元件,设计了具有宽光谱波段的太阳光光谱仪的光学系统。系统采用Fery棱镜与反射镜分离的方法增加了设计的自由度,使系统在整个光谱范围内有较高的成像质量,实现了宽光谱范围的光谱分析。系统的光谱范围为0.3～2μm,数值孔径为0.03,焦距为218mm,Fery棱镜的材料为SiO2。该棱镜光谱仪的光谱范围宽,相对传统棱镜光谱仪具有器件个数少、质量轻、结构紧凑等优点。 Fery prism is a variation of the prism. Using the Fery prism as the main dispersive element, an optical system of a solar spectrometer with a wide spectral band was designed. The system uses Fery prism and mirror separation method to increase the freedom of design, the system in the entire spectral range of higher imaging quality, to achieve a wide spectral range of spectral analysis. The system has a spectral range of 0.3 to 2 μm, a numerical aperture of 0.03 and a focal length of 218 mm. The material of the Fery prism is SiO 2. The prism spectrometer wide spectral range, relative to the traditional prism spectrometer with a small number of devices, light weight, compact structure and so on.