大相对孔径紫外成像仪光学系统设计  

Design of large aperture ultraviolet optical system for ultraviolet camera

作　　者：崔穆涵[1,2] 田志辉 周跃[1,2] 章明朝 陈雪[1,2] 李佳起 易翔宇[1,2] CUI Mu-han;TIAN Zhi-hui;ZHOU Yue;ZHANG Ming-chao;CHEN Xue;LI Jia-qi;YI Xiang-yu(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Science, Changchun National Extreme Precision Optics CO.,Ltd,Changchun 130033,China)

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]长春国科精密光学技术有限公司,吉林长春130033

出　　处：《中国光学》2018年第2期212-218,共7页Chinese Optics

基　　金：国家高技术研究发展计划(863计划)资助项目(No.2012AAXXX707)~~

摘　　要：为解决目前大多数紫外成像仪存在的定位和指向精度差、色差较大、分辨率及光能利用率不足等问题,设计了一款高分辨率的大孔径消色差紫外光学系统。首先,根据电晕放电检测的应用需求,提出了紫外光学系统的总体设计。然后利用熔石英及氟化钙两种材料的不同色散特性,根据改进的双胶合透镜结构设计了一款大孔径的消色差紫外光学系统,并对该系统进行了公差分析。设计的紫外光学系统在全视场全探测范围内点列图均方根直径<0.08 mm,分辨率为20 lp/mm,满足电力行业中对电晕探测的需求。In order to solve the problems such as the deficiency of positioning and pointing accuracy,large chromatic aberration,insufficient resolution and energy utilization efficiency,a high-resolution large aperture achromatic UV optical system is designed.First,based on the application requirements of corona discharge detection,the overall design requirements of UV optical system are proposed.Then,using the different dispersion characteristics of both fused silica and calcium fluoride,a large aperture achromatic UV optical system is designed according to the improved double-cemented lens structure,and the tolerance analysis of the system is carried out.The results show that the ultraviolet optical system designed in this paper has a dot-matrix root mean square diameter less than 0.08 mm and a resolution of 20 lp/mm within the full field of view,which meets the requirements of the power industry for corona detection.

关 键 词：电晕探测 紫外成像仪 光学系统 大孔径 消色差 

分 类 号：TH741[机械工程—光学工程]