发明名称 AN OPTICAL DISC SUBSTRATE (2) INCLUDES AN ANNULAR SUBSTRATE AND A PROTRUDING PORTION. THE ANNULAR SUBSTRATE HAS AN INNER SUPPORTING PORTION AND AN OUTER RECORDING PORTION HAVING A RECORDING SURFACE. THE PROTRUDING PORTION OVERLAYING THE SUPPORTING PO
摘要 An optical disc substrate (2) includes an annular substrate and a protruding portion. The annular substrate has an inner supporting portion and an outer recording portion having a recording surface. The protruding portion overlaying the supporting portion has a plurality of indentations (221) on its outer periphery, wherein the lapped thickness of the protruding portion over the supporting portion is greater than the thickness of the recording portion. An optical disc, wherein a paint layer for recording data is coated on the recording surface of the disc substrate, is also disclosed.
申请公布号 MXPA06009624(A) 申请公布日期 2007.03.28
申请号 MX2006PA09624 申请日期 2006.08.23
申请人 MEGA DATA GMBH. 发明人 YI-LIN CHU
分类号 G11B7/24;G11B7/24047 主分类号 G11B7/24
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