| 0.85数值孔径双非球面单片物镜的设计 |
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| 引用本文： | 田静怡,巩马理,闫平,崔瑞桢,韦宁. 0.85数值孔径双非球面单片物镜的设计[J]. 激光技术, 2005, 29(2): 116-118 |
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| 作者姓名： | 田静怡 巩马理 闫平 崔瑞桢 韦宁 |
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| 作者单位： | 1.清华大学, 精密仪器系, 光子与电子技术研究中心, 北京, 100084 |
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| 摘 要： | 设计了超高密度光盘存储的核心元器件——0.85数值孔径的单片物镜。设计中采用了3种方法,即两种商业软件Zemax和CodeV以及新型的CEDDA(离散定义非球面)算法。设计采用国际最新的单片双非球面的物镜形式,在考虑了偏心误差、视场倾斜角等实际制造工艺与使用条件的情况下,在合理的结构范围内,设计出的透镜波像差的RMS值可控制在1/30λ以下,达到了实际应用的技术要求。
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| 关 键 词： | 光盘 单片物镜 非球面 数值孔径 |
| 文章编号： | 1001-3806(2005)02-0116-03 |
| 收稿时间： | 2004-03-31 |
| 修稿时间： | 2004-03-31 |
The design of bi-aspherical single objective lens with numerical aperture of 0.85 |
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| TIAN Jing-yi,GONG Ma-li,YAN Ping,CUI Rui-zhen,WEI Ning. The design of bi-aspherical single objective lens with numerical aperture of 0.85[J]. Laser Technology, 2005, 29(2): 116-118 |
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| Authors: | TIAN Jing-yi GONG Ma-li YAN Ping CUI Rui-zhen WEI Ning |
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| Abstract: | A single objective lens with numerical aperture of 0.85 is designed as the coral component of the super high-density optical disk system,which is done with three tools respectively,i.e.two business optical design softwares Zemax and CodeV and the latest CEDDA(characteristic equations discretely defined aspherics)method.The design adopts the latest form of the single bi-aspherical lens in the world with the consideration of decenter error in the manafacture,field error in the application and a reasonable structure in practical application.So that the objective lens has a RMS wavefront error less than 1/30λ and meets the technical requivement. |
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| Keywords: | optical disk single lens aspheric NA |
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