气溶胶探测的宽波段超广角均匀像面镜头设计

宋茂新; 孙亮; 洪津; 孙晓兵

doi:doi:10.3788/lop52.112206

激光与光电子学进展, 2015, 52 (11): 112206, 网络出版: 2015-12-01

气溶胶探测的宽波段超广角均匀像面镜头设计下载： 501次

Optical Design of Wide Spectral Range Aerosol Detection Lens with Wide-Angle and Uniform Image

论文大纲

宋茂新 ^*孙亮洪津孙晓兵

作者单位

中国科学院安徽光学精密机械研究所光学遥感中心, 安徽合肥 230031

光学设计照度光瞳像差广角偏振色差反远距 optical design illuminance pupil aberration wide-angle polarization chromatic aberration inverted telephoto

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摘要

为设计满足全球大气气溶胶监测需求的星载宽波段超广角探测光学系统，解决广角镜头的像面均匀性问题。根据性能要求选择了反远距的结构形式，对反远距广角镜头的前组角放大率参数与像差控制及后截距的关系进行了理论分析，并对影响像面照度的光瞳像差进行了分析，得到增大前组角放大率不是获取大光阑彗差的必要条件。通过低色散玻璃材料以及抛物面透镜的采用，设计出的光学系统光谱覆盖范围为443~910 nm，F 数为4.5，全视场角为118.8°，畸变小于10%，各波段调制传递函数(MTF)大于0.75@20lp/mm。通过分别采用序列及非序列方法对该系统像面的相对照度进行了仿真分析，两种方法的结果一致，表明该系统像面照度的均匀性优于95%，各项指标满足要求。

Abstract

In order to design a wide spectral range and ultra wide-angle optical system that is suitable for spaceborne and meet the requirements of the global atmospheric aerosol monitoring. And to solve the problem of image surface uniformity of the wide- angle lens. The inverted telephoto structure is selected according to the performance requirements, the relationship between the angle magnification parameters of the former group and aberration control and rear cut-off distance is analyzed in theory. The pupil aberration that affect the illumination of image plane is also analyzed. Infer that increasing the angle magnification of the former group is unnecessary for getting great aperture coma. Through the use of low dispersion glass and parabolic lens, the optical system is designed and the spectral coverage is 443~910 nm, The F number is 4.5, full field angle of view is 118.8°, the distortion is less than 10%. Each band modulation transfer function (MTF) is more than 0.75@20 lp/mm. Simulation analysis is carried out on the relative illumination of system imaging using the sequential and non sequential methods respectively, the results of the two methods are consistent, show that image plane illumination uniformity of the system is better than 95%, the indicators meet the requirements.

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宋茂新, 孙亮, 洪津, 孙晓兵. 气溶胶探测的宽波段超广角均匀像面镜头设计[J]. 激光与光电子学进展, 2015, 52(11): 112206. Song Maoxin, Sun Liang, Hong Jin, Sun Xiaobing. Optical Design of Wide Spectral Range Aerosol Detection Lens with Wide-Angle and Uniform Image[J]. Laser & Optoelectronics Progress, 2015, 52(11): 112206.

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