大相对孔径制冷型红外相机镜头的光学设计:大相对孔径制冷型红外相机镜头的光学设计
Design of Low F-Number Lens for Cooled Infrared Camera
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作 者:张华卫 张金旺 刘秀军 刘波
ZHANG Hua-wei, ZHANG Jin-wang, LIU Xiu-jun, LIU Bo (Sichuan Changhong Electronic Technology Co.ltd, Mianyang 621000, China)
机构地区:四川长虹电子科技有限公司,四川绵阳621000
出 处:《红外技术》 CSCD 2015年第37卷第2期 124-129页,共6页
Infrared Technology
摘 要:介绍了一种大相对孔径红外成像镜头的设计。该镜头针对制冷型红外探测器,采用二次成像设计,保证100%冷光阑效率。在8-10μm波段,实现相对孔径(F数)为1.5、视场角2ω为18.6°的设计,其成像质量优良,传函接近衍射极限,在常规加工装调公差下易于保证应用质量。
A low F number lens for infrared camera is introduced. Re-imaging method is used to ensure 100% cold shield efficiency in this lens for cooled IR camera. The lens is designed with F number 1.5 and full field angle 18.6° in 8-10 μm waveband. Its imaging quality is nearly up to diffraction limitation and can be guaranteed with general manufacture and assembly technics.
关键词:大相对孔径 光学镜头 制冷型红外相机 二次成像
low F-number ; lens ; cooled IR camera ; re-imaging ;