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    • 4. 发明申请
    • DUAL-STACK OPTICAL DATA STORAGE MEDIUM FOR WRITE ONCE RECORDING
    • 用于一次写入的双层光盘数据存储介质
    • WO2005036536A3
    • 2005-07-07
    • PCT/IB2004051994
    • 2004-10-06
    • KONINKL PHILIPS ELECTRONICS NVMARTENS HUBERT C FTIEKE BENNOWOERLEE PIERRE HVAN DEN OETELAAR RONALD J AKOPPERS WILHELMUS R
    • MARTENS HUBERT C FTIEKE BENNOWOERLEE PIERRE HVAN DEN OETELAAR RONALD J AKOPPERS WILHELMUS R
    • G11B7/24038G11B7/24
    • G11B7/24038
    • A dual-stack optical data storage medium (10) for write-once recording using a focused radiation beam (9) having a wavelength lambda of approximately 655 nm is described. The radiation beam enters through an entrance face (8) of the medium (10) during recording. The medium comprises at least one substrate (1, 7) with present on a side thereof:­ a first recording stack (6), named L0, comprising a write-once type L0 recording layer, said first recording stack L0 having an optical reflection value RL0 and an optical transmission value TL0, a second recording stack (3), named L1, comprising a write-once type L1 recording layer, said second recording stack L1 having an effective optical reflection value RLleff. The first recording stack (6) is present at a position closer to the entrance face (8) than the second recording stack. (3). A transparent spacer layer (4) is sandwiched between the recording stacks (3, 6). The reflection values RL0 and RL1 eff are within the following ranges: 0.12
    • 描述了使用波长λ约为655nm的聚焦辐射束(9)进行一次写入记录的双叠层光学数据存储介质(10)。 辐射束在记录期间通过介质(10)的入射面(8)进入。 该介质包括存在于其一侧上的至少一个衬底(1,7):称为L0的第一记录堆叠(6),其包括一次写入型L0记录层,所述第一记录堆叠L0具有光学反射值 RL0和光传输值TL0,第二记录堆栈(3),称为L1,包括一次写入型L1记录层,所述第二记录堆栈L1具有有效光学反射值RLleff。 第一记录叠层(6)存在于比第二记录叠层更靠近入射面(8)的位置。 (3)。 透明间隔层(4)夹在记录叠层(3,6)之间。 反射值RL0和RL1eff在以下范围内:0.12≤RL0≤0.18和0.12≤RL1eff≤0.18,由此实现双堆叠介质的改进的灵敏度。