| 新型无衍射栅型结构光投影系统 |
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| 引用本文： | 干江红,周莉萍,陈良洲,徐龙. 新型无衍射栅型结构光投影系统[J]. 华中科技大学学报(自然科学版), 2011, 0(5): 14-17 |
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| 作者姓名： | 干江红 周莉萍 陈良洲 徐龙 |
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| 作者单位： | 华中科技大学机械科学与工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50975112); 湖北省自然科学基金资助项目(2009CDB197) |
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| 摘 要： | 提出了一种用于相位法测量的无衍射栅型结构光条纹投影系统,以截面三角棱镜为主要光学元件来获取无衍射栅型结构光投影条纹.从理论上分析了栅型无衍射结构光的无衍射特性以及三角棱镜相关参数对条纹图样的影响,实验测量了系统观察屏上的条纹间距.理论分析与实验表明:该系统产生的无衍射结构光条纹的光强成正弦分布且对比度好,用于相位测量可以获得较高的相位分辨率,提高相位法测量的精度.整个系统光路简单、结构紧凑,有利于系统的集成与小型化.
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| 关 键 词： | 光学干涉 无衍射 截面三角棱镜 投影条纹 相位法测量 |
Novel non-diffract grating structure for light projection system |
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| Gan Jianghong Zhou Liping Chen Liangzhou Xu Long. Novel non-diffract grating structure for light projection system[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2011, 0(5): 14-17 |
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| Authors: | Gan Jianghong Zhou Liping Chen Liangzhou Xu Long |
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| Affiliation: | Gan Jianghong Zhou Liping Chen Liangzhou Xu Long(School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | A non-diffract grating structure for the light proje ct ing systems used in phase measurement technology was described.The projecting f ringe was produced by triangle-section prism as the main optical element.The n on-diffract character of the fringe patterns and impact of the parameters of tr iangle-section prism on the fringe pattern were analyzed.Fringespacing observa tion plan was measured by experiment.Results show that the fringe has propertie s of sinusoidal density distribution,good contrast and equ... |
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| Keywords: | optical interferometry non-diffract triangl e-section prism fringe projection phase measurement |
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