中国激光, 1993, 20 (12): 921, 网络出版: 2007-12-07  

光盘表面缺陷的快速分类与质量评价

Fast classification and counting of surface defects and evaluation of surface performances for optical disks
作者单位
中国科学院上海光机所, 上海 201800
摘要
本文介绍一种利用多通道脉冲宽度鉴别技术直接对光盘表面或光盘盘片表面缺陷进行快速分类和统计的方法和实验结果。通过对聚焦激光束扫描盘面获得的缺陷信号的脉冲宽度分类,统计各类缺陷个数,计算缺陷密度值,有效地评价光盘表面的性能质量。
Abstract
In this paper, we describe a new method for fast direct classification and counting of the surf ce defects in optical disks and substrates, and present the correspounding experimental results of the surface performance evaluation by this method. Defect signals are obtained with an auto- focusing laser beam scanning the surface of optical disk or substrate, and they are directly classified and counted by the electronic circuits. The number of all kinds of defects and the size are transfered into the micro-computer, then the defect density of optical disk or substrate are calculated by the measuring software, so that the surface performances of optical disks or substrates are effectively evaluated.

吴忠俊, 李锡善, 甘柏辉, 孙晶矾. 光盘表面缺陷的快速分类与质量评价[J]. 中国激光, 1993, 20(12): 921. 吴忠俊, 李锡善, 甘柏辉, 孙晶矾. Fast classification and counting of surface defects and evaluation of surface performances for optical disks[J]. Chinese Journal of Lasers, 1993, 20(12): 921.

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