光子学报, 2009, 38 (4): 896, 网络出版: 2010-05-10
含多个非球面大视场卡塞格林系统光学设计
Optical Design of Cassegrain System with Wide Angle and Multiple Aspheric Surfaces
摘要
基于Ritchey-Chretien系统，采用CODE V软件设计了具有4个非球面（包含2个高次非球面）的折反式光学系统.系统焦距为880 mm，F数为5.6，波段0.43~0.7 μm,视场角3°.结果表明,该系统在空间分辨率为60 lp/mm时，调制传递函数大于0.5，成像质量接近衍射极限.该系统结构简单、体积小、重量轻，适用于航空遥感应用环境.
Abstract
Based on the Ritchey-Chretien system,a refractive/reflective system with four aspheric surfaces (including two high order aspheric surfaces) was designed with the help of CODE V software.It has a focal length of 880 mm,F number of 5.6,waveband of 0.43~0.7 μm,and field of view reaches 3°.It is shown that the value of modulation transfer fuction is higher than 0.5 at 60 lp/mm,image quality reaches the diffraction limit.The system with simpler structure,smaller size and lighter weight,can be used in high altitude airborne remote sensing.
钱义先, 梁伟, 高晓东. 含多个非球面大视场卡塞格林系统光学设计[J]. 光子学报, 2009, 38(4): 896. QIAN Yi-xian, LIANG Wei, GAO Xiao-dong. Optical Design of Cassegrain System with Wide Angle and Multiple Aspheric Surfaces[J]. ACTA PHOTONICA SINICA, 2009, 38(4): 896.
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