| 理想自聚焦棒透镜和Maxwell鱼眼微球透镜对有限远物点成像及球差 |
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| 引用本文： | 章国顺,易佑民.理想自聚焦棒透镜和Maxwell鱼眼微球透镜对有限远物点成像及球差[J].光学技术,1996(3). |
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| 作者姓名： | 章国顺 易佑民 |
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| 作者单位： | 安徽农业大学文理学院，安徽大学物理系 |
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| 摘 要： | 本文用变折射率介质中的光线理论研究了具有双曲正割折射率分布的理想自聚焦棒透镜对有限远物点成像的像距及其纵、横向球差的计算公式。并将它与Ｍａｘｗｅｌｌ鱼眼微球透镜对有限远物点的成像作对比。严格的数值计算结果表明：两类透镜的纵、横向球差都随折射率梯度的增强而减小。弱梯度时棒透镜比球镜的球差小；但强梯度短物距时球透镜可达到比棒透镜的球差小一、两个数量级。
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| 关 键 词： | 理想自聚焦棒，Maxwell鱼眼微球，球差 |
The aberration of ideal self-focusing bar-lens and Maxwell fisheye micro-lens for the object points with finite distance |
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| Zhang Guoshun.The aberration of ideal self-focusing bar-lens and Maxwell fisheye micro-lens for the object points with finite distance[J].Optical Technique,1996(3). |
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| Authors: | Zhang Guoshun |
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| Institution: | Zhang Guoshun(Colleges of Literature and Science. Anhui Agricultural University)Yi Youmin(Department of Physics. Anhui University) |
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| Abstract: | Using the theory of ray in gradient index medium the image distance and the longitudinal and transverse apherical aberrations for the ideal self-focusing bar-lens to the object points with finite distance is studied on this paper, and it is compared with the Maxwell fisheye micro-lens. The accurate expressions to calculate the aberration for two sorts of lens decrease on the increase of gradient index.Aberration of bar-lens is smaller than that of micro-lens for weak gradient index while in strenth gradient index aberration of micro-lens is even smaller than that of barlens by one or two order of magnitude. |
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| Keywords: | ideal self-focusing bar Maxwell fisheye micro aberration |
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