光学学报, 2012, 32 (8): 0822003, 网络出版: 2012-06-19   

高分辨率制冷型中波广角红外成像系统的光学设计

Optical Design for High Resolution Cooled Mid-Wavelength Infrared Wide-Angle Imaging System
作者单位
中国航空工业集团公司洛阳电光设备研究所, 河南 洛阳 471009
摘要
设计了一个F数为2,工作波段为3.7~4.8 μm,全视场2ω=111.2°的高分辨率制冷型中波广角红外成像光学系统。该系统采用二次成像构型,通过Si、Ge、ZnSe三种材料六片式对称布局,利用折/衍混合器件及非球面,实现了光学被动消热差设计,使系统在-55 ℃至+80 ℃的宽温范围内,在空间频率为33 lp/mm处的光学传递函数(MTF)均大于0.4,系统在15 μm的像素尺寸内,能量集中度大于70%;采用f-θ设计,使成像系统对不同视场具有相同的角分辨率;通过引入光阑像差和控制像方视场角,使像面具有较好的均匀性,边缘视场最低相对照度为中心视场的90.9%,且具有近100%的冷光阑效率,同时,系统具有较好的冷反射抑制效果,该光学系统适用于像素为15 μm,分辨率为640 pixel×512 pixel的中波制冷探测器。
Abstract
An optical system of mid-wavelength infrared for high resolution cooled wide-angle imaging system is designed. The F-number of the system is 2 and full field of view (FOV) 2ω=111.2°. The system chooses a double imaging configuration. By introducing an diffractive optical element, setting aspheric surfaces and symmetrically distributing three types of material Si, Ge and ZnSe with 6 elements, the system is athermalized across a wide temperature range from -55 ℃ to +80 ℃ and the optical aberration is well balanced. In the athermalized temperature range, the modulation-transfer function (MTF) is higher than 0.4 at 33 lp/mm, and the diffractive radial energy is more than 70% in a circle of 15 μm. Based on the principle of f-θ lens, the wide-angle system gets the same angular resolution for different fields. By intently introducing stop aberration and specifically controlling the FOV in imaging space, the focal plane gets a very good illumination uniformity, the relative illumination of off-axis field is more 90.9% and the efficiency of the cold stop is almost 100%. Moreover, the narcissus of the system is controlled very well. This system is suitable for high resolution cold 640 pixel×512 pixel detector with pixel size of 15 μm.
参考文献

[1] 王永仲. 模仿生物视觉的凝视红外成像全向感知技术[J]. 科学通报, 2010, 55(19): 1859~1865

    Wang Yongzhong. Biomimetic staring infrared imaging omnidirectional detection technology [J]. Chinese Sci. Bull., 2010, 55(19): 1859~1865

[2] 刘英, 王靖, 曲锋 等. 广角f-θ静态红外地平仪镜头的光学设计[J]. 光学 精密工程, 2010, 18(6): 1243~1248

    Liu Ying, Wang Jing, Qu Feng et al.. Optical design of high precision wide-angle lens for static infrared earth sensors [J]. Optics and Precision Engineering, 2010, 18(6): 1243~1248

[3] 范丹, 何永强, 李计添 等. 一种基于鱼眼镜头的非均匀校正方法[J]. 红外, 2009, 30(8): 28~31

    Fan Dan, He Yongqiang, Li Jitian et al.. A nonuniformity correction method based on fish-eye system[J]. Infrared, 2009, 30(8): 28~31

[4] 王新学, 焦明印. 红外光学系统无热化设计方法的研究[J]. 应用光学, 2009, 30(1): 129~133

    Wang Xinxue, Jiao Mingyin. Athermalization design for infrared optical systems [J]. J. Applied Optics, 2009, 30(1): 129~133

[5] 陈潇, 杨建峰, 马小龙 等. 8~12 μm 折混合物镜超宽温度消热差设计[J]. 光学学报, 2010, 30(7): 2089~2092

    Chen Xiao, Yang Jianfeng, Ma Xiaolong et al. .Athermalization design of wide temperature range for hybrid refractive-diffractive objective in 8~12 μm [J]. Acta Optica Sinica, 2010, 30(7): 2089~2092

[6] 郜洪云, 陈梦苇, 杨应平 等. 新型长波红外折衍混合消热差系统 [J]. 光子学报, 2010, 39(12): 2143~2146

    Gao Hongyun, Chen Mengwei, Yang Yingping et al.. Novel long wavelength infrared diffractive/refractive athermal optical system [J]. Acta Photonica Sinica, 2010, 39(12): 2143~2146

[7] 韩莹, 王肇圻, 杨新军 等. 8~12 μm波段折/衍混合反摄远系统消热差设计[J]. 光子学报, 2007, 36(1): 77~80

    Han Ying, Wang Zhaoqi, Yang Xinjun et al.. Design on athermal infrared diffractive refractive hybrid inversed telephoto system in 8~12 μm [J]. Acta Photonica Sinica, 2007, 36(1): 77~80

[8] 白瑜, 杨建峰, 马小龙 等. 红外3.7~4.8 μm波段折射/衍射光学系统的消热差设计[J]. 光子学报, 2009, 38(9): 2261~2264

    Bai Yu, Yang Jianfeng, Ma Xiaolong et al.. An athermal design of infrared hybrid diffractive/refractive optical system in 3.7~4.8 μm[J]. Acta Photonica Sinica, 2009, 38(9): 2261~2264

[9] 梁玲, 张良, 潘晓东. 折衍混合红外光学系统消热差设计[J]. 电光与控制, 2008, 15(8): 2143~2146

    Liang Ling, Zhang Liang, Pan Xiaodong. Athermal design of refractive-diffractive hybrid infrared optical systems[J]. Electronics Optics &Control, 2008, 15(8): 2143~2146

[10] 刘峰, 徐熙平, 孙向阳 等. 折/衍射混合红外目标搜索/跟踪光学系统设计[J]. 光学学报, 2010, 30(7): 2083~2088

    Liu Feng, Xu Xiping, Sun Xiangyang et al.. Design of infrared (IR) hybrid refractive/diffractive lenses for target detecting/tracking[J]. Acta Optica Sinica, 2010, 30(7): 2083~2088

[11] 宋岩峰, 邵晓鹏, 徐军. 实现复消色差的超常温混合红外光学系统[J]. 物理学报, 2008, 57(10): 6298~6303

    Song Yanfeng, Shao Xiaopeng, Xu Jun. Design of a hybrid infrared apochromatic optical system beyond normal temperature[J]. Acta Physica Sinica, 2008, 57(10): 6298~6303

[12] 刘琳, 沈为民, 周建康. 中波红外大相对孔径消热差光学系统的设计[J]. 中国激光, 2010, 37(3): 675~679

    Liu Lin, Shen Weimin, Zhou Jiankang. Design on athermalised middle wavelength infrared optical system with large relative aperture[J]. Chinese J. Lasers, 2010, 37(3): 675~679

[13] 杨胜杰. 含高次塑料非球面的头盔微光夜视物镜设计[J]. 电光与控制, 2009, 16(1): 80~83

    Yang Shengjie. Object design of helmet mounted night vision goggles with high order plastic aspherical surfaces[J]. Electronics Optics & Control, 2009, 16(1): 80~83

[14] 杨正, 屈恩世,曹剑中 等. 对凝视红外热成像冷反射现象的研究[J]. 激光与红外, 2008, 38(1): 35~38

    Yang Zheng, Qu Enshi, Cao Jianzhong et al.. The narcissus study in the optical system for the infrared staring arrays[J]. Laser & Infrared, 2008,38(1): 35~38

[15] 王海涛, 郭良贤. 制冷型中波红外变焦镜头[J]. 红外技术, 2007, 29(1): 8~11

    Wang Haitao, Guo Liangxian. Cooled thermal imaging mid-wavelength infrared zoom camera[J]. Infrared Technology, 2007, 29(1): 8~11

杨胜杰. 高分辨率制冷型中波广角红外成像系统的光学设计[J]. 光学学报, 2012, 32(8): 0822003. Yang Shengjie. Optical Design for High Resolution Cooled Mid-Wavelength Infrared Wide-Angle Imaging System[J]. Acta Optica Sinica, 2012, 32(8): 0822003.

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