| 激光扫描转镜扫描轨迹的分析计算 |
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| 引用本文： | 纪荣祎,赵长明,陈国.激光扫描转镜扫描轨迹的分析计算[J].中国激光,2011(4). |
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| 作者姓名： | 纪荣祎 赵长明 陈国 |
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| 作者单位： | 北京理工大学光电学院; |
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| 基金项目： | 国防科技工业技术基础科研项目(J172009C001)资助课题 |
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| 摘 要： | 扫描转镜是激光扫描探测系统的重要组成部分。从几何光学原理出发,以旋转六面转镜扫描为例,推导出扫描轨迹的表达式,分析了入射光线位置与扫描轨迹的关系,并给出了扫描角度与扫描轨迹的关系曲线。系统本身的结构特点是产生扫描非线性和非对称性的根源。为了减小扫描轨迹的非线性,提出了一种使用曲面反射镜的扫描系统,并对其扫描轨迹进行了求解和计算。由计算结果可知,该系统能有效克服平面转镜扫描系统的非线性特性。
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| 关 键 词： | 成像系统 激光扫描 扫描轨迹 扫描非线性 |
Analysis and Calculation of Scan Trace of Laser Scanning Rotation Mirror |
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| Ji Rongyi Zhao Changming Chen Guo.Analysis and Calculation of Scan Trace of Laser Scanning Rotation Mirror[J].Chinese Journal of Lasers,2011(4). |
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| Authors: | Ji Rongyi Zhao Changming Chen Guo |
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| Institution: | Ji Rongyi Zhao Changming Chen Guo(College of Photo-Electricity Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | The scanning rotation mirror is one of the most important components in laser scanning detecting system.Based on the principle of geometrical optics,an analytical expression for the scan trace of hexahedral column rotation mirror is derived.The relationship between the position of incident beam to rotation mirror and the scan trace is also analyzed.In addition,the relation curve of scan trace versus scanning angle is produced.The structural characteristics of the system are the origin of creating scanning n... |
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| Keywords: | imaging systems laser scanning scan trace scanning nonlinearity |
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