星载宽波段临边臭氧廓线探测仪是一种新型空间光学遥感器，根据宽波段、大动态范围、小型化的要求，提出了利用随波段衰减滤光片调节入射信号的强度，实现宽波段大动态范围临边成像光谱同时探测的新方法。采用离轴抛物面望远镜和离轴非球面光谱成像系统，设计了一个棱镜色散型宽波段临边臭氧廓线探测仪光学系统，工作波段290~1000 nm、视场1.4°×0.032°、焦距80 mm，相对孔径1/6。利用光学设计软件ZEMAX-EE 进行了优化设计和性能评价，结果表明，成像点弥散斑半径的均方根值最大为6.2 mm，小于探测器像元尺寸的1/2，在290 nm处，光谱分辨率0.9 nm，在1000 nm 处，光谱分辨率22 nm，均满足设计指标要求。临边臭氧廓线探测仪全系统不同波长的光学传递函数在特征频率7.4 lp/mm 处大于0.82，设计结果满足成像质量要求，且具有体积小、质量轻的特点，适合空间遥感应用。

Space-based broadband limb ozone profile remote sensing is a new type space optical remote sensor. Based on the requirements of broadband, large dynamic range, a new method of sounding the broadband limb imaging spectrum simultaneously is proposed. The method uses a filter to change the intensity of entrance signal. Using an off-axis parabolic telescope and off-axis aspheric spectral imaging system, broadband limb ozone profile sounder is designed, which uses a prism as a dispersive element. The working waveband is from 290 nm to 1000 nm, the field of view of is 1.4°×0.032°, the focal length is 80 mm, and the relative aperture is 1/6. Optimization design and performance evaluation are performed by ZEMAX-EE software. The maximum of root mean square for spot radius is 6.2 mm, and less than half size of pixel. The spectral resolution is 0.9 nm at 290 nm, the spectral resolution is 22 nm at 1000 nm, and both of them satisfy the requirement of specification. The modulation transfer function for different wavelengths of limb ozone profile sounder is more than 0.82 at characteristic frequency 7.4 lp/mm. The design results satisfy the requirements of imaging quality, the volume is small, the mass is low, and it is suitable for the application of space-based remote sensing.