| 用于DVD光学头的刻环型双焦点物镜的设计 |
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| 引用本文： | 韦宁,巩马理,崔瑞祯,贾维溥,张海涛,闫平.用于DVD光学头的刻环型双焦点物镜的设计[J].光学技术,2002,28(2):123-124. |
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| 作者姓名： | 韦宁 巩马理 崔瑞祯 贾维溥 张海涛 闫平 |
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| 作者单位： | 清华大学精密仪器系数字光电子实验室,北京,100084 |
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| 摘 要： | 首先介绍了DVD读出系统对像差的要求 ,然后针对DVD光学头兼容CD盘片的要求介绍了刻环型双焦点物镜的基本结构和工作原理。详细介绍了适当的球面近轴参数的选取 ,包括使制造偏心灵敏度最小的物镜中心厚度的选取 ,物镜所需校正的像差种类以及如何选择优化变量等内容。最后给出了利用计算机设计的双焦点非球面物镜的设计结果 ,并讨论了刻环宽度选取的方法
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| 关 键 词： | DVD 物镜 双焦点 |
| 文章编号： | 1002-1582(2002)02-0123-02 |
| 修稿时间： | 2001年6月28日 |
Design of dual-focus annular objective lens used in DVD pick-up head |
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| WEI Ning,GONG Ma li,CUI Rui zhen,JIA Wei pu,ZHANG Hai tao,YAN Ping.Design of dual-focus annular objective lens used in DVD pick-up head[J].Optical Technique,2002,28(2):123-124. |
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| Authors: | WEI Ning GONG Ma li CUI Rui zhen JIA Wei pu ZHANG Hai tao YAN Ping |
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| Abstract: | The requirement of the aberration of DVD read out system is introduced According to the requirement of backward compatibility, the structure and working principle of the annular dual focus lens are shown Design methods are discussed, which include choosing the appropriate paraxial parameters of the lens, choosing optimal thickness for minimal sensitivity of manufacturing decenter, ascertaining the aberration type, optimization variables and the width of the annular region Finally, the result of design of a dual focus aspherical lens is shown |
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| Keywords: | DVD objective lens dual focus |
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