发明授权
- 专利标题: Write-once optical record carrier for high-speed recording
- 专利标题(中): 一次写入光学记录载体,用于高速记录
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申请号: US10555393申请日: 2004-04-28
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公开(公告)号: US08129012B2公开(公告)日: 2012-03-06
- 发明人: Hubert Céçile François Martens , Benno Tieke
- 申请人: Hubert Céçile François Martens , Benno Tieke
- 申请人地址: NL Eindhoven
- 专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人: Koninklijke Philips Electronics N.V.
- 当前专利权人地址: NL Eindhoven
- 优先权: EP03101257 20030507
- 国际申请: PCT/IB2004/050542 WO 20040428
- 国际公布: WO2004/100140 WO 20041118
- 主分类号: B32B3/02
- IPC分类号: B32B3/02
摘要:
The present invention relates to a write-once optical record carrier for high speed recording, in particular to a DVD+R disc. Such a record carrier comprises in general at least a substrate layer (3), a recording layer (2) of an organic dye material on top of the substrate layer (3) and a metal reflective layer (1) on top of the recording layer (2). In order to obtain a less steep temperature gradient at the interface between the recording layer (2) and the reflective layer (1) and thus to prevent mechanical stress leading to a delamination problem it is proposed to reduce the thickness of the metal reflective layer (1) to a range below 75 nm. A dielectric layer of a thickness below 50 nm between the recording layer (2) and the metal reflective layer (1) is also enclosed.
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