| 基于哈特曼-夏克波前测量原理的焦距测量 |
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| 引用本文： | 吴佳杰,陈家璧,徐安成,高晓燕.基于哈特曼-夏克波前测量原理的焦距测量[J].光子学报,2014,40(6):912-915. |
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| 作者姓名： | 吴佳杰 陈家璧 徐安成 高晓燕 |
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| 作者单位： | （上海理工大学 光电信息与计算机科学学院,上海 200093） |
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| 基金项目： | 国家重点基础研究发展计划项目(No.2007CB935303)、国家自然科学基金（No.60778031）和国家重点科技攻关项目(No.2006BAK03A03)资助 |
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| 摘 要： | 本文从哈特曼-夏克波前测量原理出发,提出了基于波前测量的透镜焦距测量方法|得到了使用这一方法测量焦距的计算公式.使用633 nm和780 nm两种波长的半导体准直激光器作为光源,测量了三片双合透镜的焦距,结果表明,633 nm光源下测量得到的波长与透镜的设计焦距值相吻合,能够正确测量透镜焦距|而780 nm光源的测量结果显示出较大的相对测量偏差,但可用于评估透镜的剩余球差、色差以及制造公差.
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| 关 键 词： | 焦距 焦点 哈特曼-夏克 波前 色差 |
| 收稿时间： | 2010-10-25 |
Focal Length Measurement Based on Hartmann-Shack Principle |
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| WU Jia-jie,CHEN Jia-bi,XU An-cheng,GAO Xiao-yan.Focal Length Measurement Based on Hartmann-Shack Principle[J].Acta Photonica Sinica,2014,40(6):912-915. |
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| Authors: | WU Jia-jie CHEN Jia-bi XU An-cheng GAO Xiao-yan |
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| Institution: | (School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,
Shanghai 200093,China) |
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| Abstract: | A novel means of lens focal length measurement was proposed based on Hartmann-Shack principle of wavefront detection.Mathematical approaches of focal length measurement were deduced.In the experiments,laser sources with wavelength of 633 nm and 780 nm were separately used and focal length of three pieces of doublets were measured by the two wavelengths.The results show that the measured result can truly reflect the designed focal length by using 633 nm wavelength laser beam,which indicates that this measurement method is feasible and reliable.Meanwhile,the measured result by using 780 nm wavelength laser beam shows larger differences compared with its 633 nm counterpart,which reveals that this method can also be used to evaluate residual spherical aberrations,chromatic aberrations and manufacturing tolerance. |
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| Keywords: | Focal length Focal point Hartmann-Shack Wavefront Chromatic aberration |
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