离轴三反射镜光学系统研究  

Off-axis three-mirror reflective optical system

作　　者：宋岩峰[1] 邵晓鹏[1] 徐军[1] 

机构地区：[1]西安电子科技大学技术物理学院,陕西西安710071

出　　处：《红外与激光工程》2008年第4期706-709,共4页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目(60407012)

摘　　要：离轴三反镜光学系统具有高分辨率、大视场、质量轻、小体积等优点,能够满足空间对地遥感、红外系统多波段探测以及空间探测系统等的要求,使其光学系统具备高分辨率、小型化、轻量化等特点,成为研究的热点。以离轴三反射镜光学系统设计方法为基础,重点分析并讨论了三反射镜系统初始结构参量的确定方法。主要对传统的初始结构参量确定方法进行了分析,讨论了三种不同结构类型情况下系统各几何参量的求解范围,有利于系统根据实际需要合理选择结构参量。比较了两种初始结构设计方法的优缺点,指出了各自的适用情况。最后依据理论研究进行了实例设计,从像质的评定结果可以看出,系统成像质量接近衍射极限。The characteristics of off-axis three-mirror system with high resolution,wide field of view,long focal length,light weight and small volume can satisfy the requirement of remote sensing,space photography and infrared multispectral detection. Meanwhile it makes the space optical system high resolution,light weight and small volume.Based on a brief introduction of the current methods to design off-axis three-mirror reflective system,the parameters of the initial structure were obtained. The parameters ranges of the three systems with different structures were studied in order to select the parameters of the initial structure. The comparison of the advantages and disadvantages between two methods was completed,along with the conditions of each suitable field to be used. Example designs with proposed method were given and the evaluations demonstrate that the image qualities of the examples are near diffraction limit.

关 键 词：光学设计 全反射光学系统 离轴三反射镜光学系统 

分 类 号：TH703[机械工程—仪器科学与技术]