多视场定焦距CCD摄像系统结构设计及调校  

Structure design and adjustment of multiple-field-of-view fixed-focal-length CCD camera system

作　　者：夏元杰[1] 段红建[1] 石欣[1] 刘志东[1] 杨晓强[1] 王涛[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《应用光学》2012年第2期240-244,共5页Journal of Applied Optics

摘　　要：针对多视场定焦距CCD摄像系统按照传统光机结构设计方法造起各光轴平行性容易偏移和系统占用空间较大等问题,提出多视场定焦距CCD摄像系统的光机结构可以以一个精密铸件为基体,铸造出每个视场的内腔毛坯形状,通过数控机械加工和可靠的装调方法保证各视场光轴的平行性和稳定性。装调完成后进行冲击和振动试验,结果表明:该多视场定焦距CCD摄像系统各视场光轴的平行性误差不大于0.2mrad;各视场光轴的稳定性误差不大于0.1mrad。因此,该结构设计方法是可行的,它具有结构紧凑、体积小,各光轴平行性和稳定性容易保证,可靠性高等特点。In order to solve the problems of more deviation of optical axis and larger space occu- pancy induced by traditional structural method, this paper presents a CCD camera with the structure of multiple fields of view（FOVs） and fixed focal length which is based on a precision casting to cast the inner rough shape of every FOV in the casting. Through the numerical con- trol （NC） machining and the reliable assembling and adjustment method, the parallelism and stability of optical axis for this system are guaranteed efficiently. Impact and vibration tests are carried out and the measurement results show that the optical-axis parallelism error of the mul- tiple FOV system is less than 0.2mrad; its optical-axis stability error is less than 0. lmrad. So the structure design method is feasible and effective . It has the advantages of compact struc- ture, lighter weight, more reliable optical-axis parallelism and stability, high reliability.

关 键 词：CCD摄像系统 多视场 定焦距 结构设计 

分 类 号：TN203[电子电信—物理电子学]