红外与毫米波学报, 2014, 33 (1): 68, 网络出版: 2014-03-14
45倍中波红外连续变焦光学系统
MWIR continuous zoom optical system with magnification of 45
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3.7~4.8μm,可实现10~450mm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.
Abstract
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 3.7~4.8μm with 10~450mm continuous zoom, and the MTF value in Nyquist limit (16lp/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.
周昊, 刘英, 孙强, 李淳, 张晓龙, 黄剑波. 45倍中波红外连续变焦光学系统[J]. 红外与毫米波学报, 2014, 33(1): 68. ZHOU Hao, LIU Ying, SUN Qiang, LI Chun, ZHANG Xiao-Long, HUANG Jian-Bo. MWIR continuous zoom optical system with magnification of 45[J]. Journal of Infrared and Millimeter Waves, 2014, 33(1): 68.
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