| 光学非球面二次曲面常数及顶点曲率的研究 |
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| 引用本文： | 程灏波,王英伟,冯之敬,冯志伟,张锐.光学非球面二次曲面常数及顶点曲率的研究[J].光学技术,2004,30(3):311-313. |
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| 作者姓名： | 程灏波 王英伟 冯之敬 冯志伟 张锐 |
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| 作者单位： | 1. 清华大学,精仪系,北京,100084
2. 长春理工大学,材料系,长春,130022 |
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| 基金项目： | 国家自然科学基金资助项目(50175062)，国家863高技术项目基金(2001AA421140)，国家博士后青年基金。 |
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| 摘 要： | 受光学非球面制造过程中诸工艺参数的影响,能否保证非球面顶点曲率及二次曲面常数的精度是一个重要问题。基于二次曲面方程,推导出确定光学非球面二次曲面常数k以及顶点曲率半径r的一组算法,并在对一块口径为760mm×200mm标准非球面反射镜的实际测算中进行拟合,经过优化,拟合精度达到Δk=0.015,Δr=0.341mm,从而有效的控制了光学非球面制造过程中的顶点曲率及二次曲面常数的偏差。
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| 关 键 词： | 离轴非球面 二次曲线常数 顶点曲率 |
| 文章编号： | 1002-1582(2004)03-0311-03 |
| 修稿时间： | 2003年4月17日 |
Study on conic constant and paraxial radius of optical aspheric |
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| CHENG Hao-bo,WANG Ying-wei,FENG Zhi-jing,FENG Zhi-wei,ZHANG Rui.Study on conic constant and paraxial radius of optical aspheric[J].Optical Technique,2004,30(3):311-313. |
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| Authors: | CHENG Hao-bo WANG Ying-wei FENG Zhi-jing FENG Zhi-wei ZHANG Rui |
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| Institution: | CHENG Hao-bo~1,WANG Ying-wei~2,FENG Zhi-jing~1,FENG Zhi-wei~1,ZHANG Rui~1 |
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| Abstract: | How to meet the demand on the accuracy of conic constant and paraxial radius of off-axis aspheric is a key issue during fabricating process. From the equation for conic aspheric, derived a set of algorithms from which the conic constant k and the paraxial radius of curvature r be obtained. The experimental results of the 760mm×200mm aspheric are presented, the fitting accuracy arrived to Δk=(0.015), Δr=(0.341)mm, thus the deviation of the two indexes be controlled effectively. |
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| Keywords: | off-axis aspheric conic constant paraxial radius of curvature |
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