星载紫外全景探测仪已成为空间大气遥感领域的迫切需求, 根据天底和临边同时探测的研究目标, 提出了一种天底视场和临边视场共像面的全新紫外全景探测仪光学系统结构, 设计了一个中心波长360nm、带宽20nm、中心视场10°、环形视场360°×(70.31°～72.71°)、焦距5mm、相对孔径1/3.3的全景探测仪光学系统.利用光学系统的畸变增加边缘视场的能量, 同时利用光阑像差产生的有效像差渐晕来提高边缘视场的像面照度, 边缘视场的相对照度达到98%以上.将天底视场光路和临边视场光路建立多重结构, 利用ZEMXA-EE软件的多重结构优化功能同时优化设计天底视场光路和临边视场光路, 设计结果表明, 天底和临边视场的光学传递函数均大于0.6@38.5lp/mm, 满足设计指标要求, 且体积和质量小, 适合空间应用.

Space-based atmospheric remote sensing urgently require UV panoramic imager. The research objective is sounding nadir and limb atmosphere simultaneously. Based on this research objective, a new optical system construction of UV panoramic imager is proposed, in which, the nadir Field of View (FOV) and limb FOV use a common image plane. An optical system of panoramic imager is designed, the central wavelength is 360nm, the bandwidth is 10nm, the nadir FOV is 10°, the limb FOV is 360°×(70.31°～72.71°), the focal length is 5mm, an the relative aperture is 1: 3.3. The energy of margin FOV is increased by using the distortion of the optical system, and the image irradiance is increased by using the effective aberration vignetting caused by pupil aberration. The relative illumination of margin FOV is more than 98% of that of central FOV. The multi-configuration is established with the optical paths of nadir FOV and limb FOV. The optical paths of nadir FOV and limb FOV is optimized by using multi-configuration optimization function of ZEMAX-EE software. The design result shows that the MTF of nadir and limb FOV are both more than 0.6@38.5lp/mm, The design requirements are satisfied. The volume of the panoramic imager is small, and is suitable for appplication in space.