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DOI:
飞控与探测:2020,(6):84-94
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基于波前编码的红外光学系统低成本无热化设计
王艺璇, 仇荣生, 李 琪, 坎金艳, 白俊磊
(上海航天控制技术研究所)
Low-Cost Athermalization of Infrared Optical System Based on Wavefront Coding
WANG Yixuan, QIU Rongsheng, LI Qi, KAN Jinyan, BAI Junlei
(Shanghai Aerospace Control Technology Institute)
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中文摘要: 波前编码技术通过特殊面型的相位板对光束进行编码,拓展系统焦深,使之对热离焦不敏感,再结合数字图像处理,解码获得清晰图像,实现无热化设计。将波前编码技术应用在某一长波红外光学系统无热化设计中,对比了原光学系统和波前编码系统的点扩散函数、光学传递函数、模拟成像质量及公差分析。结果表明,波前编码技术可以为红外成像系统提供具有价格竞争力的无热化方案,可使红外光学系统在-40℃至60℃范围内获得良好且稳定的工作性能。
中文关键词: 红外光学;无热化;波前编码;低成本
Abstract:Wavefront coding modulates the beam by a phase mask with a specially designed surface type, the depth of field is extended and the optical system is insensible to defocus consequently. Then the intermediate blurred image can be turned into a clear image by digital image processing, achieving athermalization. In this paper, wavefront coding is applied on athermalization of a long wave infrared optical system, comparing the point spread function, the modulation transfer function, the image simulation and the tolerance of the wavefront coding system with those of the original optical system. The results show that wavefront coding technology can provide a price competitive athermalization solution for the infrared imaging system, making the system has a good and stable performance in a temperature range of -40℃ to 60℃.
keywords: infrared optics;athermalization;wavefront coding;low-cost
文章编号:20200608     中图分类号:TN215;TN216    文献标志码:A
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作者单位
王艺璇 上海航天控制技术研究所 
仇荣生 上海航天控制技术研究所 
李 琪 上海航天控制技术研究所 
坎金艳 上海航天控制技术研究所 
白俊磊 上海航天控制技术研究所 
Author NameAffiliation
WANG Yixuan Shanghai Aerospace Control Technology Institute 
QIU Rongsheng Shanghai Aerospace Control Technology Institute 
LI Qi Shanghai Aerospace Control Technology Institute 
KAN Jinyan Shanghai Aerospace Control Technology Institute 
BAI Junlei Shanghai Aerospace Control Technology Institute 
引用文本:
王艺璇,仇荣生,李 琪,坎金艳,白俊磊.基于波前编码的红外光学系统低成本无热化设计[J].飞控与探测,2020,(6):84-94.

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