发明名称 |
MANUFACTURE OF OPTICAL DATA STORAGE DISC |
摘要 |
A method and apparatus forming a micro-relief pattern on a surface of an optical disc, which micro-relief pattern may form a holographic image in which a shim bearing a micro-relief pattern is pressed onto the surface of the disc and the apparatus used ensures that a greater force is applied to the periphery of the disc and the remainder of the surface on which it is desired to form the micro-relief pattern, such method and apparatus enables a satisfactory relief pattern to be formed over a substantial area of the surface of the disc.
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申请公布号 |
CA2244129(A1) |
申请公布日期 |
1997.07.31 |
申请号 |
CA19972244129 |
申请日期 |
1997.01.23 |
申请人 |
NIMBUS MANUFACTURING (UK) LIMITED |
发明人 |
VEDAMUTTU, PAUL |
分类号 |
B29C59/02;B29D17/00;B30B15/06;G03H1/02;G03H1/18;G11B7/0065;G11B7/26;(IPC1-7):G11B7/26;G11B23/38 |
主分类号 |
B29C59/02 |
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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