45倍中波红外连续变焦光学系统(英文)  

MWIR continuous zoom optical system with magnification of 45

作　　者：周昊[1,2] 刘英[1] 孙强[1] 李淳[1] 张晓龙[1,2] 黄剑波[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《红外与毫米波学报》2014年第1期68-71,77,共5页Journal of Infrared and Millimeter Waves

基　　金：Supported by the program of academy-locality cooperation of the Chinese Academy of Sciences(2011CJT0004);the Jilin province science and technology development plan item(20090557 and 20125092)

摘　　要：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.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.

关 键 词：中波红外 连续变焦 高变焦比 光学设计 

分 类 号：TN216[电子电信—物理电子学]