| 凹透镜焦距测量新方法的实验研究 |
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| 引用本文： | 许巧平.凹透镜焦距测量新方法的实验研究[J].河南科学,2014,32(7):1185-1188. |
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| 作者姓名： | 许巧平 |
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| 作者单位： | 延安大学物理与电子信息学院,陕西延安,716000 |
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| 基金项目： | 国家自然科学基金项目，陕西省延安市科技局工业攻关项目，陕西省高水平大学建设专项资金资助项目(物理学，延安大学科研专项基金 |
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| 摘 要： | 根据透镜成像原理,提供了一种"凹透镜前置(或凸透镜后置)"测量凹透镜焦距的新思路.给出了两种不同实验方式的原理及方法,并计算出了实验结果与标准值的相对误差.该方法原理简单,思路新颖,是测量凹透镜焦距的一种新方法.
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| 关 键 词： | 凹透镜 焦距 物距像距法 共轭法 |
Experimental Study on a New Way for Measuring the Focal Length of Concave Lens |
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| Xu Qiaoping.Experimental Study on a New Way for Measuring the Focal Length of Concave Lens[J].Henan Science,2014,32(7):1185-1188. |
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| Authors: | Xu Qiaoping |
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| Institution: | Xu Qiaoping (College of Physics and Electronic Information, Yan＇an University, Yan＇an 716000, Shaanxi China) |
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| Abstract: | A novel way for measuring the focal length of the thin concave under concave lens front is introduced based on the principle of lens imaging. The experimental principles and methods of two experiment modes are provided and the relative error of experimental results with the standard value is calculated. Results show that this method is simple in principles and accurate in results. It is a new method for measuring the focal length of concave lens. |
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| Keywords: | concave lens focus object image distance method conjugate method |
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