Title:
情報層中に吸光性化合物としての色素を含有する光学データ媒体
Document Type and Number:
Japanese Patent JP2004534344
Kind Code:
A
Abstract:
Optical data medium containing a preferably transparent substrate which is optionally already coated with one or more barrier layers and on the surface of which an information layer which can be recorded on using light, optionally one or more barrier layers, and a cover layer, have been applied, which data medium can be recorded on and read using focused blue light through the cover layer on the information layer, preferably laser light with the wavelength between 360 nm and 460 nm, the information layer containing a light-absorbing compound and optionally a binder, characterized in that at least one dye is used as the light-absorbing compound wherein the cover layer on the top of the information layer including the adhesive layer do have a total thickness of 10 mum to 177 mum and the numerical aperture NA of the focusing objective lens setup is greater or equal 0.8.
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Inventors:
Horst bernate
Friedrich-Karl Bruder
Wilfried Heeze
Liner hagen
Carlin Hasen Backpack
Sergey Kostromine
Peter Landenberger
Rafael Ozer
Thomas Sommerman
Josef-Walter Starwitz
Thomas belinger
Yuichi Sahi
Sakuya Tamada
Masanobu Yamamoto
Friedrich-Karl Bruder
Wilfried Heeze
Liner hagen
Carlin Hasen Backpack
Sergey Kostromine
Peter Landenberger
Rafael Ozer
Thomas Sommerman
Josef-Walter Starwitz
Thomas belinger
Yuichi Sahi
Sakuya Tamada
Masanobu Yamamoto
Application Number:
JP2002578290A
Publication Date:
November 11, 2004
Filing Date:
March 20, 2002
Export Citation:
Assignee:
バイエル アクチェンゲゼルシャフト
ソニー株式会社
ソニー株式会社
International Classes:
B41M5/26; C07D217/14; C07D221/04; C07D311/12; C07D311/80; C07D405/04; C07D455/04; C07D491/04; C07F15/06; C09B23/00; C09B23/01; C09B23/04; C09B23/10; C09B29/00; C09B29/036; C09B29/36; C09B44/10; C09B47/04; C09B47/08; C09B47/26; C09B67/02; C09B69/02; C09K9/02; G11B7/0045; G11B7/007; G11B7/24; G11B7/24056; G11B7/244; G11B7/2475; G11B7/248; G11B7/249; G11B7/254; G11B7/2548; G11B7/257; G11B7/26; (IPC1-7): G11B7/24; B41M5/26; C09B23/00; G11B7/26
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard