| 三代微光像增强摄像系统选通成像系统研究 |
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| 引用本文： | 刘宇,郭城,茹志兵.三代微光像增强摄像系统选通成像系统研究[J].应用光学,2014,35(1):27-30. |
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| 作者姓名： | 刘宇 郭城 茹志兵 |
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| 作者单位： | 1.西安应用光学研究所,陕西 西安 710065 |
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| 摘 要： | 提出一种能够高速选通工作的三代微光像增强摄像系统（ICCD）。采用三代像增强器，设计了光阴极选通控制电路，使ICCD系统能够高速选通成像；通过分析、比较，设计了双高斯复杂化结构的中继镜头耦合方案，获得了高透过率、高调制传递函数（MTF）的图像耦合性能。采用数字CCD、数字图像采集卡及其集成的图像处理硬件，编写了相关处理软件，使ICCD系统的图像能够快速呈现。结果表明:设计的三代选通ICCD具有3.3 ns选通门宽，空间分辨力达到600 TVL。
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| 关 键 词： | 选通成像 三代像增强器 数字成像 |
Design of 3rd generation ICCD gated imaging system |
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| LIU Yu,GUO Cheng,RU Zhi-bing.Design of 3rd generation ICCD gated imaging system[J].Journal of Applied Optics,2014,35(1):27-30. |
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| Authors: | LIU Yu GUO Cheng RU Zhi-bing |
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| Affiliation: | 1.Xi-an Institute of Applied Optics,Xi-an 710065,China |
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| Abstract: | A design of a 3rd generation image intensifying charged-coupled device camera ( ICCD) was proposed that could operate under high-speed gating. A gated control circuit was designed which was used for the photocathode of a 3rd generation image tube, so that the ICCD could image effectively under a high speed gated state. After analysis and comparison, a relay lens was designed which had a Bi-Gauss complication optic configuration. The high transmissivity and high modulated transfer function ( MTF ) were achieved on image coupling. A digital CCD and a digital frame capture circuit with an embedded image process module were used. The correlative software about the image process was accomplished , so that the image of ICCD was presented fast. As a result of the design, the 3rd gated ICCD can operate with a 3.3 ns gated width and its spatial resolution is 600 TVL. |
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| Keywords: | gated imaging 3rd generation image intensifier digital imaging |
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