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发明授权
US08530140B2 Optical information recording medium and method for manufacturing the same 有权
光学信息记录介质及其制造方法

Optical information recording medium and method for manufacturing the same
摘要：
An optical information recording medium of the present invention includes at least a recording layer (4) that allows information to be recorded thereon and/or reproduced therefrom by being irradiated with a laser beam, and a transmittance adjusting layer (7) in this order from an incident side of the laser beam (30). In the optical information recording medium of the present invention, the transmittance adjusting layer (7) contains Bi, Ti, and O and with a composition of Bi, Ti, and O contained in the transmittance adjusting layer (7) being denoted as BixTiyOz, in atomic number ratio, x, y, and z satisfy 0.07≦x≦0.35, 0.07≦y≦0.28, 0.56≦z≦0.70, and x+y+z=1. Or the transmittance adjusting layer (7) contains Bi2O3 and TiO2, and with a composition of Bi2O3 and TiO2 contained in the transmittance adjusting layer (7) being denoted as (Bi2O3)α(TiO2)β, in molar ratio, α and β satisfy 0.2≦α≦0.7, 0.3≦β≦0.8, and α+β=1.
摘要（中）：

本发明的光学信息记录介质至少包括记录层（4），该记录层（4）能够通过照射激光而在其上记录和/或再现其信息，以及透射率调节层（7） 激光束（30）的入射侧。 在本发明的光学信息记录介质中，透射率调节层（7）包含Bi，Ti和O，并且透射率调节层（7）中所含的Bi，Ti和O的组成被表示为BixTiyOz， 在原子序数比中，x，y和z满足0.07 @ x @ 0.35，0.07 @ y @ 0.28,0.56 @ z @ 0.70和x + y + z = 1。 或者透光率调节层（7）含有Bi 2 O 3和TiO 2，并且透射率调整层（7）中所含的Bi 2 O 3和TiO 2组成以摩尔比表示为（Bi 2 O 3）α（TiO 2）β，α和β满足 0.2 @α@ 0.7，0.3 @β@ 0.8和α+β= 1。

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