红外技术, 2020, 42 (1): 25, 网络出版: 2020-02-24   

基于二元衍射面的长波无热化光学系统设计

Design of Long-wave Athermal Optical System Based on Binary Diffraction Surface
作者单位
四川长虹电子科技有限公司,四川绵阳 621000
摘要
仅用 3片透镜,设计了一款匹配 640×512氧化钒非制冷长波焦平面探测器的红外系统。该系统焦距为 100 mm,F数为 1.1,总长为 107 mm,工作波段范围为 8~12 .m,引入一片二元衍射面实现无热化温度补偿功能。利用 ZEMAX进行仿真设计,结果表明:在-40℃~+60℃温度范围内,系统奈奎斯特频率(30 lp/mm)处 MTF均达到 0.49,接近衍射极限。该系统具有焦距较长,相对孔径大、全视场像质优良、温度适应良好、二元面衍射效率高、易于加工和结构紧凑的特点。
Abstract
Using only three lenses, an infrared system matching 640×512 uncooled vanadium oxide long-wave focal plane detector was designed. The system has a focal length of 100 mm, an F-number of 1.1, a total length of 107 mm, and a working band range of 8-12 .m. A binary diffraction surface was introduced to realize the non-thermal temperature compensation function. The simulation design using Zemax shows that the modulation transfer function (MTF)value at the Nyquist frequency (30 lp/mm) of the system reached 0.49 in the temperature range of -40℃-+60℃, which is close to the diffraction limit. The system has the characteristics of a long focal length, large relative aperture, good image quality in the full field of view, suitable temperature adaptation, high binary diffraction efficiency, easy processing, and compact structure.

张发平, 张华卫. 基于二元衍射面的长波无热化光学系统设计[J]. 红外技术, 2020, 42(1): 25. ZHANG Faping, ZHANG Huawei. Design of Long-wave Athermal Optical System Based on Binary Diffraction Surface[J]. Infrared Technology, 2020, 42(1): 25.

本文已被 6 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!