激光与光电子学进展, 2003, 40 (7): 9, 网络出版: 2006-06-27
HD-DVD光学系统物镜的设计与研究进展
Progress in Design and Study of Objective Lens Used in HD-DVD Optical Systems
摘要
对于下一代光盘系统而言,GaN激光器和高数值孔径(NA)的物镜是关键组件.本文介绍了几种HD-DVD光学系统物镜的设计方案,并对其进行比较研究,发现要根据不同的要求来设计物镜,对像差要求高的要采用两元件型或者三元件型物镜;而对于要求结构简单、装配容易、工作距离大的光学头,要采用单元型物镜.在解决其与CD和DVD的兼容性问题时,可采用物镜前插入补偿装置来控制物镜的数值孔径.
Abstract
In the next generation of optical disk system,GaN laser and high numerical aperture(NA)objective lens are two key components.This paper describes some design ways of objective lens for HD-DVD optical system,and through comparison we find that we should design objective lens according to different requirements.For diminishing aberration we should apply two -element objective lens,and for compact design,easy assembly and wide working distance we should apply single -element objective lens.When solving the compatibility with CD and DVD,we set a compensator before the objective lens to control NA of it.
陈丹, 刘继桥, 张广照, 阮昊. HD-DVD光学系统物镜的设计与研究进展[J]. 激光与光电子学进展, 2003, 40(7): 9. 陈丹, 刘继桥, 张广照, 阮昊. Progress in Design and Study of Objective Lens Used in HD-DVD Optical Systems[J]. Laser & Optoelectronics Progress, 2003, 40(7): 9.
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