通过光(激光)的作用,能使特种薄膜材料达到记录和贮存以及读取信号的目的,称这样的系统为光记录系统或光盘系统.光盘系统是依赖材料科学、激光技术及自动控制技术等的高度发展而发展起来的.本世纪70年代后期,光记录技术才逐渐成为电子技术的一大分支.目前,光盘已进入到实用阶段.然而,系统 Through the action of light (laser), special thin film material can be recorded, stored and read signal, which is called optical recording system or optical disk system. Optical disk system relies on material science, laser technology and automatic control technology The development of the height of the development of the late 70s of this century, optical recording technology has gradually become a major branch of electronic technology.At present, the optical disk has entered a practical stage.However, the system