CD-R/DVDR光盘生产中的反射率测试与控制

Reflectance measurement and control in CD-R/DVDR production

反射率是评价光盘质量的重要性能参数,严重影响可写光盘的伺服、读取性能。槽反射率、岸反射率、反射率径向变化、反射率切向变化都应严格控制。控制反射率,实现高质量CD-R/DVDR光盘生产的关键在于:精确的测试染料在槽内和岸上的分布。

Reflectance is important parameters in optical disc quality control. Radial variation of reflectance influences stability of tracking servo during disc playback. And tangent variation of reflectance would introduce high error rate or Jitter. The key for recordable disc to realize stable reflectance and excellent quality is to measure precisely dye profile.