Invention Grant
- Patent Title: Write-once optical record carrier for high-speed recording
- Patent Title (中): 一次写入光学记录载体,用于高速记录
-
Application No.: US10555393Application Date: 2004-04-28
-
Publication No.: US08129012B2Publication Date: 2012-03-06
- Inventor: Hubert Céçile François Martens , Benno Tieke
- Applicant: Hubert Céçile François Martens , Benno Tieke
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP03101257 20030507
- International Application: PCT/IB2004/050542 WO 20040428
- International Announcement: WO2004/100140 WO 20041118
- Main IPC: B32B3/02
- IPC: B32B3/02

Abstract:
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.
Public/Granted literature
- US20060222807A1 Write-once optical record carrier for high-speed recording Public/Granted day:2006-10-05
Information query