从光学角度,通过对光盘光学读盘系统的理论分析,提供了光盘双折射现象对高倍速光驱运行影响的理论根据.得出光盘双折射现象,影响了扫描光斑的成形质量和输出光强的稳定性,从而严重影响了对光盘信息轨道的正常扫描,甚至循迹失败.通过对高倍速光驱实际数据读出率分析,首次从专业使用角度,模拟了光盘在高倍速条件下的应用状态,为高倍速CD及DVD光盘的应用研究,提出了使用新的分析手段的可能性.

In this paper, CD optics reading system and influence of bi-refraction on high-speed CD-driver are analyzed with optics method. Bi-refraction disturbs scanning facula and output light intensity, thus affects scanning CD orbit. Furthermore, by analyzing data output rate of high-speed CD-driver, the application situation on the basis of high-speed condition is simulated