红外与毫米波学报2018，Vol.37Issue(3)：278-283,6.DOI:10.11972/j.issn.1001-9014.2018.03.005
短波红外成像变焦匀化激光照明系统
The zooming and homogenizing laser illumination system for shortwave infrared imaging
摘要
Abstract
Recent years, shortwave infrared ( SWIR) imaging system has been developed rapidly, and additional active lighting is very necessary in some scenarios.At present, the uniformities of laser illumination homogeniza-tion schemes commonly used are not high, and can' t reach the requirements of imaging.A new 25 × zoom laser illumination system was designed based on the analysis of the laser model in fiber and the theory of zoom illumina-tion system.The optical lens of the illumination system is composed of three groups of lenses, and the CAM struc-ture achieves continuous zooming.This system is small in size, has simple structure, and gains large zoom ratio. Finally a continuous change of 2～50°in illumination angle is achieved .Laser illumination intensity uniformity reaches 92.7％.In the imaging experiments, the human identify distance was up to 1.2 km.The continuous zoom laser illumination system is of high significant for improving the ability of the short-wave infrared night vision sys-tem.关键词
红外与夜视技术/短波红外成像/激光照明/激光匀化/变焦系统Key words
Infrared and night vision technology/shortwave infrared imaging/laser illumination/laser uniformi-ty/zoom lens分类
信息技术与安全科学引用本文复制引用
陈大明,李永富,王玉荣,费宬,方家熊..短波红外成像变焦匀化激光照明系统[J].红外与毫米波学报,2018,37(3):278-283,6.基金项目
Supported by the Opening Foundation of Key Laboratory of Infrared Imaging Materials and Devices and in part by the Shanghai Institute of Technical Physics, CAS (IIMDKFJJ-16-08) （IIMDKFJJ-16-08）
