大气与环境光学学报 ›› 2012, Vol. ›› Issue (3): 235-240.

• 光电技术 • 上一篇    

基于LCTF的艇载多光谱CCD相机的光学系统设计

杨伟锋,洪津,乔延利   

  1. (中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室, 安徽 合肥 230031)
  • 收稿日期:2011-06-20 修回日期:2011-10-25 出版日期:2012-05-28 发布日期:2012-05-24
  • 通讯作者: 杨伟锋 (1976-),男,安徽怀宁人,硕士,副研究员,现主要从事光学设计及偏振遥感仪器的工程光机设计。 E-mail:wfyang@aiofm.ac.cn
  • 作者简介:杨伟锋 (1976-),男,安徽怀宁人,硕士,副研究员,现主要从事光学设计及偏振遥感仪器的工程光机设计。

Optical System Design of Airship Multispectral Camera Based on LCTF

YANG Wei-feng, HONG Jin, QIAO Yan-Li   

  1. ( Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy Sciences, Hefei 230031, China)
  • Received:2011-06-20 Revised:2011-10-25 Published:2012-05-28 Online:2012-05-24

摘要:

提出了一种基于液晶可调谐滤光片(LCTF)多光谱CCD相机光学系统设计方案。该光学系统焦距60mm,F数为3.5,谱段范围400nm-720nm。视场角16.6°,采用前置扩束光学系统获得满足液晶可调谐滤光片孔径、视场角要求的光束,后继成像系统采用双高斯型结构。像质分析表明,此设计能够满足使用要求,在谱段范围内,16个波段都能清晰成像,满足实际工程需要。

关键词: 液晶可调谐滤光片, 多光谱, CCD, 光学系统

Abstract:

Optical system design of multispectral camera based on liquid crystal tunable filter (LCTF) was presented. The optical system has a focal length of 60mm, F number of 3.5, and spectrum band of 400~720 nm, and the field angle 16.6°.It consisted of the fore-optical system and the subsequent imaging system, the fore-optical system was adopt in order to attain beam of light which can fulfill requirement of the aperture and field angle of LCTF, adopt double Gaussian structure was adopted in the subsequent imaging system. The imaging analysis results show that the design fulfills operating and engineering requirement. The optical system can produce a clear image in 16 waveband of the spectral range.

Key words: LCTF, multispectral, CCD, optical, system

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