| 再用费马原理推导透镜的物像公式 |
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| 引用本文： | 张相武.再用费马原理推导透镜的物像公式[J].延安大学学报(自然科学版),2004,23(4):31-33. |
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| 作者姓名： | 张相武 |
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| 作者单位： | 陇东学院,物理系,甘肃,西峰,745000 |
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| 摘 要： | 用费马原理推导了透镜对轴外物点的物像公式，推导过程清楚表明近轴条件是理想成像的充分必要条件。
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| 关 键 词： | 费马原理 轴外物点 光程 近轴物点 近轴光线 透镜的物像公式 |
| 文章编号： | 1004-602X(2004)04-0031-03 |
| 修稿时间： | 2004年9月2日 |
Derivation of lens equation by using Fermat's principle again |
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| ZHANG Xiang-wu.Derivation of lens equation by using Fermat''''s principle again[J].Journal of Yan'an University(Natural Science Edition),2004,23(4):31-33. |
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| Authors: | ZHANG Xiang-wu |
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| Abstract: | Lens equation of zxis-beyond object point was derived by using Fermat's principle,the process of derivation indicates clearly that near axial conditions are necessary and sufficient conditions of ideal image formation. |
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| Keywords: | fermat's principle axis-beyond object point optical path near axial object point near zxial ray lens equation |
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