发明名称 OPTICAL RECORDING MEDIUM AND METHOD FOR PRODUCING THE SAME
摘要 An optical recording medium, comprising: a substrate on which information is formed as pit rows constituted by concavities and convexities having a predetermined track pitch; at least a first metal reflective layer; and a transparent resin layer formed on the first metal reflective layer, which are formed on the substrate, wherein the information is reproduced by applying a light beam onto a signal face formed on the resin layer side of the first metal reflective layer, characterized in that the following relational expression: <DF>1.0 < D(S)/D(L)≤1.3 </DF> is satisfied, provided that a depth of the shortest pit formed in the signal face is D(S) and a depth of the longest pit formed in the signal face is D(L). <IMAGE>
申请公布号 AU2003255002(A1) 申请公布日期 2004.04.30
申请号 AU20030255002 申请日期 2003.08.12
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 YUUKO KAWAGUCHI;MORIO TOMIYAMA
分类号 G11B7/007;G11B7/013;G11B7/24;G11B7/258;G11B7/26;(IPC1-7):G11B7/007 主分类号 G11B7/007
代理机构 代理人
主权项
地址