发明名称 |
HIGH DENSITY READABLE ONLY OPTICAL DISC AND METHOD OF PREPARING THE SAME |
摘要 |
<p>Regarding many media developed recently, the biggest issue is capacity. A high density readable only optical disc includes a substrate having pits with different lengths in accordance with unit information, wherein a depth of the pit increases as the pit length increases; and a mask layer that includes a metal oxide, or a mixture of fine metal particles and a dielectric material. The high density readable only optical disc may be used to read pits not greater than a reading resolution limit and to obtain an optimal CNR since a pit depth is varied depending on a pit length. Also, a method of the high density readable only optical disc may be used to prepare a high density readable only optical disc having an optimal pit depth in accordance with a pit length.</p> |
申请公布号 |
WO2005029484(A1) |
申请公布日期 |
2005.03.31 |
申请号 |
WO2004KR02426 |
申请日期 |
2004.09.22 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, HYUN-KI;KIM, JOO-HO;YOON, DU-SEOP;HWANG, IN-OH |
分类号 |
G11B7/24;B32B3/02;G11B7/013;G11B7/135;G11B7/243;G11B7/258;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/24 |
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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