大口径反射光学系统的支撑结构设计  

The Supporting Structure Design for Large Aperture Optical Reflecting System

作　　者：张磊[1] 郑建平[1] 付跃刚[1] 刘智颖[1] 

机构地区：[1]长春理工大学,长春130022

出　　处：《仪器仪表学报》2005年第z1期461-463,共3页Chinese Journal of Scientific Instrument

摘　　要：给出了卡氏系统(卡塞格林系统)的支撑结构设计。大口径反射镜的面形精度与支撑结构的合理与否紧密相关,文中给出了主反射镜的的支撑方案,经理论和有限元分析,此方案主反射镜的变形量最小。在装调过程中,次反射镜支撑结构能有效地调节主反射镜与次反射镜的位置关系。在工作过程中,卡式系统主反射镜与次反射镜的距离要求非常严格,采用了殷钢杆拉顶的方法保证其位置精度。The supporting structure of Cassigrain system is given.The surface accuracy of large diameter reflec-tor is closely related to the reasonablility of supporting structure.The supporting plan of primary reflector is giv-en.After the plan is analyzed,the distortion of the primary is minimum.During the adjusting process,the sup-porting structure of secondary reflector can adjust the position between the primary reflector and the secondaryreflector.The distance from the primary reflector to the secondary reflector is demanded strictly during the work-ing process.The position accuracy is ensured by steel pole pull crest.

关 键 词：卡氏系统 反射镜 支撑点 次反射镜 

分 类 号：TH7-55[机械工程—仪器科学与技术]