| 一种离轴计算全息图在凹非球面检测中的应用 |
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| 引用本文： | 王虹,钱晓凡,庞永杰,张永安.一种离轴计算全息图在凹非球面检测中的应用[J].光学与光电技术,2011,9(1):60-63. |
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| 作者姓名： | 王虹 钱晓凡 庞永杰 张永安 |
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| 作者单位： | 昆明理工大学理学院激光研究所,云南,昆明,650051 |
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| 基金项目： | 昆明理工大学科学研究基金 |
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| 摘 要： | 为了精确检测大口径非球面面型质量,将CGH作为补偿器应用于凹非球面的离轴全息检测系统中.根据计算全息图的离轴全息检测系统检测凹非球面的基本原理,分析了离轴CGH的计算、制作过程,实现了对口径为150 mm,近轴半径为1499.7 mm,非球面系数为-1的凹非球面镜的检测.实验结果与轮廓仪检测结果吻合得很好.
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| 关 键 词： | 非球面检测 计算全息图 凹非球面 离轴 相移 |
Application of Off-Axis CGH to Aspheric Surface Test |
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| WANG Hong,QIAN Xiao-fan,PANG Yong-jie,ZHANG Yong-an.Application of Off-Axis CGH to Aspheric Surface Test[J].optics&optoelectronic technology,2011,9(1):60-63. |
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| Authors: | WANG Hong QIAN Xiao-fan PANG Yong-jie ZHANG Yong-an |
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| Institution: | (Laser Institute,Kunming University of Science and Technology,Kunming 650051,China ) |
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| Abstract: | Compute-generated hologram is used as a compensator in off-axis holographic detection system to test large concave aspheric surface more precisely.According to the principle of the off-axis holographic detection system using CGH.the calculation and making of CGH are analyzed.The measurement of concave aspheric surface with an aperture of 150 mm, spherical radius of 1 499.7 mm and aspheric coefficient of -1 is performed.The measurement result is coincident with the result of profilograph. |
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| Keywords: | aspheric surface testing computer-generated hologram concave aspheric surface off-axis phase shift |
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