复杂曲面铝反射镜超精密制造现状  

Current status of ultra-precision manufacturing of complex curved aluminum reflectors

作　　者：徐超 彭小强[1,2] 戴一帆[1,2] Xu Chao;Peng Xiaoqiang;Dai Yifan(Laboratory of Science and Technology on Integrated Logistics Support,National University of Defense Technology,Changsha,Hunan 410073,China;College of Intelligent Science and Technology,National University of Defense Technology,Changsha,Hunan 410073,China)

机构地区：[1]国防科技大学装备综合保障国防科技重点实验室,湖南长沙410073 [2]国防科技大学智能科学学院,湖南长沙410073

出　　处：《光电工程》2020年第8期27-38,共12页Opto-Electronic Engineering

基　　金：国防基础科研科学挑战专题项目(TZ2018006);国家自然科学基金重点项目(51835013)。

摘　　要：由于复杂曲面铝反射镜所具有的独特优势,其在光学系统中的应用越来越广泛。但是只采用超精密车削加工的光学反射镜精度受到超精密车削加工“误差复映”的限制,只能满足红外系统应用需求,其应用的进一步推广遭遇瓶颈。采用超精密车削、磁流变抛光、计算机控制表面成形(CCOS)的组合加工工艺,并结合复杂光学曲面的计算全息图法(CGH)面形检测技术,可以进一步提升铝反射镜的面形精度,满足可见光系统的应用需求,为复杂曲面铝合金反射镜的推广奠定了制造基础。Due to the unique advantages of complex curved aluminum mirrors,its application in optical systems is becoming more and more widespread.However,the accuracy of optical mirrors that are only processed by ultra-precision turning is limited by the"error reflection"of ultra-precision turning,which can only meet the application requirements of infrared systems,and its further promotion and application have encountered bottlenecks.The combined processing technology of ultra-precision turning,magnetorheological polishing,and computer-controlled surface forming(CCOS),combined with the computational hologram method(CGH)of the complex optical curved surface(CGH)surface shape detection technology,can further improve the surface shape accuracy of the aluminum reflector,to meet the application requirements of visible light systems,and lay the foundation for the promotion and application of complex curved aluminum alloy mirrors.

关 键 词：复杂曲面 铝反射镜 超精密车削 抛光 计算全息图法(CGH) 

分 类 号：TH74[机械工程—光学工程] TH161[机械工程—仪器科学与技术]