| 基于Talbot效应的光准直测量方法研究 |
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| 引用本文： | 陈颖,杨坤涛. 基于Talbot效应的光准直测量方法研究[J]. 光学与光电技术, 2005, 3(2): 37-40 |
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| 作者姓名： | 陈颖 杨坤涛 |
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| 作者单位： | 华中科技大学光电系,武汉,430074;华中科技大学光电系,武汉,430074 |
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| 摘 要： | 讨论了一种基于Talbot效应原理的快速检测准直性的方法。通过光束经两光栅形成的莫尔条纹的倾斜角大小来检测光束的准直程度,该法简单、精度高且易于实现自动快速的测量。实验表明,该方法的相对误差可达±0.012%。
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| 关 键 词： | Talbot效应 莫尔条纹 准直 图像处理 |
| 文章编号： | 1672-3392(2005)02-0037-04 |
| 收稿时间： | 2004-09-22 |
| 修稿时间： | 2004-09-22 |
Research on the Check of Light Collimation Based on Talbot Effect |
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| CHEN Ying,YANG Kun-tao. Research on the Check of Light Collimation Based on Talbot Effect[J]. optics&optoelectronic technology, 2005, 3(2): 37-40 |
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| Authors: | CHEN Ying YANG Kun-tao |
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| Abstract: | This paper propose a fast-checking method for the light collimation based on Talbot effect. The collimation of laser (or other ray ) beam can be checked by measuring the obliquity of Moire fringe of twin-grating. It is simple and easy to perform fast auto-measurement with high precision. Experiments have verified that the relative error of collimation is up to ± 0.012%. |
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| Keywords: | Talbot effect Moire fringe collimation image processing |
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