摘要
一、光学头系统的工作原理在光盘系统中,光学头是复杂而精密的光、机、电集成器件,它的功能是精确地读取并输出光盘所记录的数字信息。一般而言,它主要由半导体激光器、光栅、准直镜、物镜、力矩器、柱面镜、会聚透镜、光电探测器(PDIC)等多种元器件组成,如图1所示。
The optical pickup (OPU) is the most important component in the optical disk system.Since there are always different errors which can damage the reading performance of the optical storage devices,servo control system in OPU is adopted to reduce and compensate the error caused by different factors.In this paper,we will introduce the mechanical and optical errors in optical disk system,and then describe the compensation methods used in OPU system.
出处
《记录媒体技术》
2007年第6期48-50,64,共4页
China Mediatech
