Structure design and adjustment of multiple-field-of-view fixed-focal-length CCD camera system
-
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0.2 mrad；各视场光轴的稳定性误差不大于0.1 mrad。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。Abstract: In order to solve the problems of more deviation of optical axis and larger space occupancy 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 control (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 opticalaxis parallelism error of the multiple FOV system is less than 0.2mrad; its optical-axis stability error is less than 0.1mrad. So the structure design method is feasible and effective .It has the advantages of compact structure, lighter weight, more reliable optical-axis parallelism and stability, high reliability.
-
Key words:
- CCD camera system /
- multiple FOV /
- fixed focal length /
- structure design
-
［1］乔健，曹立华，崔爽，等. 连续变焦距镜头结构设计及焦距实时输出分析［J］. 应用光学，2010，31(4)：521-524.
QIAO Jian, CAO Li-hua,CUI-Shuang,et al. Mechanical design of zoom lens and analysis of its focal length［J］. Journal of Applied Optics ,2010,31(4),521-524.（in Chinese with an English abstract）
［2］王一凡，薛育. 一种大口径高精度凸轮变焦机构的设计［J］. 光学精密工程，2007，15(11)：1756-1759.
WANG Yi-fan,XUE Yu. Design of a heavy caliber and high precison cam-varifocal mechanism［J］. Optics and Precision Engineering,2007,15(11)：1756-1759.（in Chinese with an English abstract）
［3］王庆有. CCD应用技术［M］. 天津：天津大学出版社，2000.
WANG Qing-you. CCD applied technology ［M］. Tianjin:Tianjin University Press,2000.（in Chinese）
［4］凌军，刘秉琦,赵熙林. 几种光轴平行性测试方法的比较与探讨［J］. 应用光学，2003，24(1)：43-45.
LING Jun,LIU Bing-qi,ZHAO Xi-lin.The comparison and discussion of several testing methods about optical-axis parallelism［J］. Journal of Applied Optics,2003,24(1),43-45.（in Chinese with an English abstract）
［5］付跃刚，王治坚，李博.多光谱光学系统光学平行性的调校和检验方法探讨［J］. 长春光学精密机械学院学报，2001，24(4)：11-14.
FU Yao-gang,WANG Zhi-jian，LI Bo. The method of adjustment and examination of optical laxis-parallelism of multi-spectrum sensor optical system ［J］. Journal of Changchun Institute of Optics and Fine Mechanics,2001,24(4):11-14.（in Chinese）
［6］高稚允，高岳. 军用光电系统［M］. 北京：北京理工大学出版社，1996.
GAO Ya-yun,GAO Yue. Electro-optical system in military［M］. Beijing: Beijing Institute of Technology Press,1996.（in Chinese）
［7］郑学文，王全波. 精密仪器设计［M］. 北京：兵器工业出版社，1992.
ZHENG Xue-wen,WANG Quan-bo. Design of instrumental accuracy ［M］. Beijing: Military Industry Press,1992.（in Chinese）
［8］光学仪器设计手册编辑组. 光学仪器设计手册［M］. 北京：国防工业出版社，1971.
Editorial Staff of Optical Instrument Design Manual. Optical instrument design manual ［M］. Beijing:National Defense Industry Press,1971.（in Chinese） -
点击查看大图
计量
- 文章访问数: 3288
- HTML全文浏览量: 134
- PDF下载量: 665
- 被引次数: 0
下载:
陕公网安备 61011302001501号 