| 发明名称 |
MULTILAYER OPTICAL DISC |
| 摘要 |
To reduce loss of the reading light, a multilayer optical disc (figure 1, disk), such as a disc in a CD or DVD format, has multiple layers (figure 1, layer) with pits or tracks and a reflective material only in the pits or tracks. The disc can be used as a ROM or WORM disc. A methods of making it are also disclosed. |
| 申请公布号 |
EP1419503(A4) |
申请公布日期 |
2008.03.26 |
| 申请号 |
EP20020756425 |
申请日期 |
2002.07.12 |
| 申请人 |
D DATA INC. |
发明人 |
DISKINE, IOSIF;KVASHA, MIHAIL;LEVICH, EUGENE;LEZHNEV, ALEXEY;MALKIN, JACOB |
| 分类号 |
G11B7/007;G11B7/24;G11B7/26;(IPC1-7):G11B7/24;G11B3/70 |
主分类号 |
G11B7/007 |
| 代理机构 |
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| 主权项 |
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