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新型发光二极管透镜产生局域空心光束 被引量：5

Optical bottle beam generated by a new type of light emitting diode lens
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摘要 首次提出采用发光二极管和二次光学透镜直接产生单个局域空心光束的方法.首先从几何光学角度分析发光二极管点光源结合二次光学透镜产生局域空心光束的原理,推算出所得局域空心光束长度及最大暗域半径计算公式,随后用数值计算软件Matlab,3D建模软件Soidworks及光学仿真软件Tracepro计算得出一款二次光学透镜并进行了仿真验证.同时计算了可能获得的局域空心光束的最小尺寸和囚禁粒子的散射力.结果显示:该透镜能够产生单个局域空心光束,所得局域空心光束的长度及最大暗域半径都在误差允许范围内与理论计算符合.研究成果为采用发光二极管光源产生局域空心光束提供一种现实可行低成本的有效方法. A new method for generating a single bottle beam directly by light emitting diode （LED） with a secondary optical lens is proposed for the first time, so far as we know. Firstly, in the aspect of geometrical optics, we analyze the principle of generation of a single bottle beam by the LED spot light with a secondary optical lens. Then, we calculate the expression of the length and the radius of the biggest dark region of the bottle beam. After that, a new type of a secondary optical lens is calculated numerically and simulated by numerical recipes software Matlab, three-dimensional modeling software Solidworks and optical simulation software Tracepro. Meanwhile, the minimum size of the bottle beam and the scattering force for trapping particles are calculated. The result shows that the designed secondary optical lens can produce a single bottle beam, the length and the radius of the biggest dark region of the generated bottle beam are in accordance with the theoretical calculations. This result offers a practical and availab!e method for generating a bottle beam with light emitting diode at a low cost.
作者 何西 杜团结 吴逢铁
机构地区 华侨大学信息科学与工程学院福建省光传输与变换重点实验室
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2014年第7期109-114,共6页 Acta Physica Sinica
基金 国家自然科学基金(批准号:61178015) 福建省自然科学基金项目(批准号:2012J01278)资助的课题~~
关键词 局域空心光束 发光二极管 二次光学透镜 bottle beam, light emitting diode, secondary optical lens
分类号 TN312.8 [电子电信—物理电子学]
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参考文献23

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共引文献41

同被引文献62

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引证文献5

二级引证文献14

物理学报
2014年 第7期

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