一、光存储技术的特点光存储技术的发展始于70年代，到了80年代光技术在音像领域得到了迅猛的发展，典型的有激光唱片CD和镭射录像LD。光存储技术是用激光束会聚到光衍射极限的斑点上，使存储介质产生某种变化，从而使该认的光学性质与周围不同。要存储的信息由调制过的激光束 First, the characteristics of optical storage technology The development of optical storage technology began in the 70s, to 80’s optical technology in the field of audio and video has been the rapid development of a typical CD-ROM and laser video LD. Optical storage technology uses a laser beam to converge on a spot of light diffraction limit, causing a change in the storage medium so that its optical properties are different from the surroundings. The information to be stored is modulated by the laser beam