| 非准确联合变换相关测量透镜焦距 |
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| 引用本文： | 沈学举,王永仲,姚广涛,高鸿启. 非准确联合变换相关测量透镜焦距[J]. 光子学报, 2008, 37(6): 1263-1266 |
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| 作者姓名： | 沈学举 王永仲 姚广涛 高鸿启 |
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| 作者单位： | 军械工程学院,石家庄,050003;军械工程学院,石家庄,050003;军械工程学院,石家庄,050003;军械工程学院,石家庄,050003 |
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| 摘 要： | 提出了一种利用非准确联合变换相关测量透镜焦距的方法.该方法首先利用已知焦距透镜记录联合功率谱,再用记录的联合功率谱经被测焦距透镜输出相关点,记录相关点并测出其间距,可以计算出被测透镜的焦距.理论分析和实验结果表明,该方法有较高的测量准确度,能实现透镜焦距的自动测量.
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| 关 键 词： | 焦距测量 联合相关变换 非准确联合相关 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 2007-02-04 |
Measurement of Focal Length of Lens Using Inaccurate Joint Transform Correlative Technique |
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| SHEN Xue-ju,WANG Yong-zhong,YAO Guang-tao,GAO Hong-qi. Measurement of Focal Length of Lens Using Inaccurate Joint Transform Correlative Technique[J]. Acta Photonica Sinica, 2008, 37(6): 1263-1266 |
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| Authors: | SHEN Xue-ju WANG Yong-zhong YAO Guang-tao GAO Hong-qi |
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| Abstract: | A focal length measurement method using inaccurate joint transform correlation technique is proposed.The joint power spectrum is recorded using lens of known focal length,and correlation spots are output by the lens to be measured.The correlation spots are recorded ,correlation spot interval is measured,and focal length can be calculated.The results show that the measurement precision is higher and the method can be potentially applied to focal length measurement automation. |
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| Keywords: | Focal length measurement Joint transform correlation Inaccurate joint transform correlation. |
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