发明名称 |
OPTICAL DATA STORAGE MEDIUM AND USE OF SUCH A MEDIUM |
摘要 |
The optical data storage medium (20) has a substrate (1) with a surface area having tracks (4) of marks representing stored information. The information is readable by means of a scanning radiation beam (10). A reflective layer (2) is present, reflecting the radiation beam (10). The medium has a radiation beam (10) reflection larger than 50 %. The reflective layer (2) comprises a compound of the formula Al100-yXy, in which formula Al is aluminum and X is an element selected from the group of Ge and Si. The letter y is the atomic fraction of X in at. %. The value of y is in the range 5 < y < 35. The reflective layer (2) has a radiation beam absorption, which enables controll ed ablative recording or solid-phase change recording of an identification mark (6, 6').
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申请公布号 |
CA2449429(A1) |
申请公布日期 |
2002.12.12 |
申请号 |
CA20022449429 |
申请日期 |
2002.06.04 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
RIJPERS, JOHANNES C. N.;VAN DEN BROEK, JAN J.;WILTING, HERMANUS J. H.;VAN WOUDENBERG, ROEL |
分类号 |
G11B7/007;G11B7/013;G11B7/24;G11B7/243;G11B7/258;G11B20/00;G11B20/10;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/007 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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