| 微光夜视系统在激光助视下的视距研究 |
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| 引用本文： | 狄慧鸽,钱芸生,赵爽.微光夜视系统在激光助视下的视距研究[J].光学学报,2005,25(10):357-1360. |
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| 作者姓名： | 狄慧鸽 钱芸生 赵爽 |
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| 作者单位： | 郑州大学河南省激光与光电信息技术重点实验室,郑州,450052;南京理工大学电子工程与光电技术学院,南京,210094;南京理工大学电子工程与光电技术学院,南京,210094;西安交通大学电子与信息工程学院,西安,710049 |
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| 摘 要： | 微光夜视仪的最大作用距离是它主要的技术指标和进行系统设计的主要依据。根据前人的研究，系统总结了微光夜视系统的视距公式。为改变微光夜视系统易受外界影响的缺点，一般需要再加入激光助视系统。加入激光助视系统之后光源的类型发生变化，视距公式也会随之发生改变，其中最主要的是光谱匹配系数的变化，还有照度、对比度、反射率等都随之发生变化。详细分析了加入激光之后视距公式中各因子发生的变化，为合理选择激光类型提供理论参考。并且估算了头盔式微光夜间驾驶仪（其中所用光电阴极为超二代管）在激光助视下的视距。验证了选取激光类型的合理性。
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| 关 键 词： | 激光光学 微光夜视系统 激光助视 视距 超二代管 |
| 文章编号： | 0253-2239（2005）10-1357-4 |
| 收稿时间： | 2004-09-16 |
| 修稿时间： | 2005-04-11 |
Research for Visual Range of Low Light Level Imaging System Under the Laser Aids |
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| Di Huige,Qian Yunsheng,Zhao Shuang.Research for Visual Range of Low Light Level Imaging System Under the Laser Aids[J].Acta Optica Sinica,2005,25(10):357-1360. |
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| Authors: | Di Huige Qian Yunsheng Zhao Shuang |
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| Institution: | 1. HeNan Key Laboratory of Laser and Opto-Electric Information Technology, Zhengzhou University, Zhengzhou 450052; 2. School of Electronic Engineering and Optoelectronic Technology, Nanjing University of Science and Technology, Nanjing 210094; 3. School of Electronic and Information Engineering, Xian Jiaotong University, Xian 710049 |
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| Abstract: | The maximal visual range of low light level (LLL) imaging apparatus is a basic guideline in system's design. Based on the early work, the visual range equation of LLL imaging system has been summarized. The laser aids system is used in order to improve its watching ability in bad weather. If so, there would be changed in the equation of visual range, especially the spectral matching factor. What's more, the illumination, contrast, reflectivity and so on would be changed. The changes about these factors after the adding of the laser are discussed, which can help choosing the lasers. The visual range of the super second generation image intensifiers under the laser aids is estimated, which proved the laser (λ=850 nm) is reasonable. |
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| Keywords: | laser optics low light level imaging system laser aids visual range super second generation image intensifier |
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