光子学报, 2009, 38 (11): 2890, 网络出版: 2010-05-10
基于天基平台的小凹成像系统的设计
Foveated Imaging System Design Based on Space-earth Flat
光学设计 离轴三反射式光学系统 小凹成像 衍射极限 Optical design Off-axis optical system with three mirrors Foveated imaging Diffraction limit level
摘要
将小凹成像的概念应用于空间光学, 设计了基于天基平台的小凹成像系统.使用离轴三反射式的光学设计, 在可见光波段实现了大F数(F/# =10)和宽视场(25°)的定焦(8.75 m)光学系统.利用OKO公司的19通道压电可变型镜来补偿任意给定视场内的离轴像差, 在可见光波段实现了全视场内接近衍射极限的结果.
Abstract
Using foveated imaging concept in space optics,a foveated imaging system based on space-earth flat is designed.The off-axis optical system with three mirrors is used in visible light,and an stable focus optical system with wide caliber (F/# :10) and wide field-of-view(25°) is realized.The OKO Technologies 19-channel piezoelectric deformable mirror is adopted to correct all the geometrical aberrations at a given field angle.After the correction,the performance of the system is closed to the diffraction limit level at all field-of-view.谢永军|yjxie@opt.ac.cn
赵小侠, 谢永军, 赵卫. 基于天基平台的小凹成像系统的设计[J]. 光子学报, 2009, 38(11): 2890. ZHAO Xiao-xia, XIE Yong-jun, ZHAO Wei. Foveated Imaging System Design Based on Space-earth Flat[J]. ACTA PHOTONICA SINICA, 2009, 38(11): 2890.
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