发明名称 Optisches Aufzeichnungsmedium
摘要 The present invention relates to an optical recording medium (1) having two information carrier layers (2, 3), on which information can be written by means of a focused light beam. In this case, a separating layer (8) is arranged between the information carrier layers (2, 3) and a respective transparent covering layer (4, 5) is arranged between the information carrier layer (2, 3) and the surface (6, 7) of the recording medium (1), the thickness of which covering layer substantially exceeds that of the information carrier layer (2, 3). One object of the present invention is to propose an optical recording medium in the case of which it is possible to write to both information carrier layers (2, 3) using a low optical power. Further objects of the invention are to specify an apparatus and also a suitable method for writing to a recording medium (1) of this type. A recording medium (1) according to the invention has information carrier layers (2, 3) which are both semi-transparent.
申请公布号 DE60042535(D1) 申请公布日期 2009.08.27
申请号 DE2000642535 申请日期 2000.05.10
申请人 THOMSON LICENSING 发明人 RICHTER, HARTMUT;UHDE, DIETMAR
分类号 G11B7/24;G11B7/00;G11B7/0037;G11B7/0045;G11B7/005;G11B7/007;G11B20/10 主分类号 G11B7/24
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