45倍中波红外连续变焦光学系统

红外连续变焦光学系统具有很多优势,介绍了一种可以实现高变焦比的设计方法.据此设计了一个系统,其由八片透镜组成,工作波段为3.7～4.8 μm,可实现10 ～ 450 mm连续变焦.系统在全焦距范围内奈奎斯特频率处的MTF值均大于0.3,系统F数为4,且满足冷光阑效率100％的要求....

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Bibliographic Details
Published in红外与毫米波学报 Vol. 33; no. 1; pp. 68 - 71
Main Author 周昊 刘英 孙强 李淳 张晓龙 黄剑波
Format Journal Article
LanguageChinese
Published 中国科学院大学,北京100049%中国科学院长春光学精密机械与物理研究所,吉林长春,130033 2014
中国科学院长春光学精密机械与物理研究所,吉林长春130033
Subjects
中波红外
光学设计
连续变焦
高变焦比
连续变焦
高变焦比
continuous zoom
MWIR
中波红外
optical design
光学设计
large zoom range
Online AccessGet full text
ISSN1001-9014
DOI10.3724/SP.J.1010.2014.00068

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Summary:红外连续变焦光学系统具有很多优势,介绍了一种可以实现高变焦比的设计方法.据此设计了一个系统,其由八片透镜组成,工作波段为3.7～4.8 μm,可实现10 ～ 450 mm连续变焦.系统在全焦距范围内奈奎斯特频率处的MTF值均大于0.3,系统F数为4,且满足冷光阑效率100％的要求.
Bibliography:MWIR; continuous zoom; large zoom range; optical design
The MWIR continuous zoom optical system has many advantages. A method for designing the system with large zoom range was introduced. Then, a system with 8 lenses was designed. The system works in the wavelength range of 3.7 - 4.8 μm with 10- 450 mm continuous zoom, and the MTF value in Nyquist limit （ 16 lp/mm） is more than 0.3 over the full range. The F/number of the system is 4. It can satisfy 100% cold shield efficiency.
31-1577/TN
ZHOU Hao, LIU Ying , SUN Qiang, LI Chun , ZHANG Xiao-Long, HUANG Jian-Bo （1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Jilin 130033, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China）
ISSN:1001-9014
DOI:10.3724/SP.J.1010.2014.00068