| 球透镜的折射率计算与成像分析 |
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| 引用本文： | 刘爱梅.球透镜的折射率计算与成像分析[J].孝感学院学报,2007,27(3):35-37. |
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| 作者姓名： | 刘爱梅 |
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| 作者单位： | 孝感学院,物理与电子信息工程学院,湖北,孝感,432000 |
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| 摘 要： | 从Snell定律出发,给出了球透镜折射率的计算公式,并研究了不同折射率情况下球透镜的成像特性和耦合效率。结果表明:折射率为1.57的球透镜具有很好的成像,能够有效地将来自球透镜的光汇聚,但是其耦合效率只有63%;折射率为2.77的球透镜,由于其焦点在球透镜内部,因此通过球透镜的光将产生发散,不能很好成像,且耦合效率较低,最大只有40%,但是通过增加准直系统和折射率为1.57的球透镜后,其耦合效率可以达到70%。
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| 关 键 词： | 球透镜 折射率 成像 耦合效率 |
| 文章编号： | 1671-2544（2007）03-0035-03 |
| 收稿时间： | 2007-01-29 |
| 修稿时间： | 2007-01-29 |
Ball Lenses:Calculation of Index of Refraction and Analysis of Image |
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| Liu Aimei.Ball Lenses:Calculation of Index of Refraction and Analysis of Image[J].JOURNAL OF XIAOGAN UNIVERSITY,2007,27(3):35-37. |
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| Authors: | Liu Aimei |
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| Institution: | School of Physics and Electronic information Engineering, Xiaogan University, Xiaogan, Hubei 432000, China |
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| Abstract: | In this paper,calculating formula is given according to Snell law,and the imaging characteristics and coupling efficiencies having different index of refraction are researched.The results indicate that ball lens with n=1.57 can converge the light effectively and have good image,but its coupling efficiency is 63%.Because its focal spot is in ball lens and the light from it will be diverged,ball lens with n=2.77 can not image effectively and has 40% coupling efficiency.If the collimating device and ball lens with n=1.57,its coupling efficiency can reach 70%. |
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| Keywords: | ball lens index of refraction image coupling efficiency |
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