| 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 Al<SUB>100-y</SUB>,X<SUB>y</SUB>, 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 controlled ablative recording or solid-phase change recording of an identification mark ( 6, 6 '). |
| 申请公布号 |
EP1449209(A1) |
申请公布日期 |
2004.08.25 |
| 申请号 |
EP20020733125 |
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 |
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