| 一种摄像机变焦镜头焦距测量的新方法 |
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| 引用本文： | 慕志国,熊文卓,万秋华,刘焕雨. 一种摄像机变焦镜头焦距测量的新方法[J]. 传感器与微系统, 2005, 24(11): 65-67 |
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| 作者姓名： | 慕志国 熊文卓 万秋华 刘焕雨 |
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| 作者单位： | 1. 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033;中国科学院,研究生院,北京,100039
2. 中国科学院,长春光学精密机械与物理研究所,吉林,长春,130033 |
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| 摘 要： | 为实现摄像系统小型化,提出了一种结合摄像机镜头自身结构,以发光二极管和光敏三极管构成光电传感器来检测镜头的焦距,实现了焦距自动测量的新方法。简述了测量原理,分析了系统的误差,同时,证明了该测量方法的可行性。测量系统满足了相对误差(短焦≤2%、长焦≤5%)的指标要求。
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| 关 键 词： | 摄像机镜头 焦距 曲线拟合 温度补偿 |
| 文章编号： | 1000-9787(2005)11-0065-03 |
| 收稿时间： | 2005-05-28 |
| 修稿时间： | 2005-05-28 |
New focus measuring method of camera zoom lens |
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| MU Zhi-guo,XIONG Wen-zhuo,WAN Qiu-hua,LIU Huan-yu. New focus measuring method of camera zoom lens[J]. Transducer and Microsystem Technology, 2005, 24(11): 65-67 |
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| Authors: | MU Zhi-guo XIONG Wen-zhuo WAN Qiu-hua LIU Huan-yu |
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| Affiliation: | 1. Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Sciences, Changchun 130033, China; 2. Gradute School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | For realizing the miniaturization,an auto-measuring method of camera zoom lens is advanced,it combines the camera self-configuration,uses photoelectric transducter including a light emitting diode and a phototransistor as the focus detector.The principle of the system is discussed briefly,the error of the system is analyzed,the feasibility of the measuring method is also argued.The measuring system reaches the target,which meets the requivements of relative errors(≤2 % at short focus,≤5 % at long focus). |
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| Keywords: | camera lens focus curve-fitting temperature compensation |
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