Mid-wavelength infrared dual field-of-view optical system

被引：0
|
作者：
Gao, Hong-Yun [1 ]
Xiong, Tao [2 ]
机构：
[1] Wuhan University of Technology, Wuhan 430070, China
[2] Huazhong Institute of Optoelectronic Technology, Wuhan 430074, China
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2008年 / 16卷 / 10期
关键词：
Infrared radiation - Optical transfer function - Optical systems;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A middle infrared dual field-of-view optical system with staring focal plane array and re-imaging optics is presented for cool 320240 detector. Based on zoom system principle and optical design software, the Modulation Transfer Function (MTF) curve, spot diagram, and the Root Mean Square value (RMS) of spot diameter are investigated. The design results show that this system can realize 180 mm/60 mm dual field-of-view at the spectrum region of 3-5 μm and the F number of 1.96, which can obtain the cold shield efficiency of 100% and the MTF more than 0.6 at the spatial frequency of 16 lp/mm.The optical system is analyzed in two modes of Narrow Field of View (NFOV) and Wide Field of View (WFOV), results show that it has the advantages of simple structure, high image quality, low price and easy to adjustment.
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页码：1891 / 1894
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