G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/26 (2006.01) G06F 12/14 (2006.01) G11B 23/28 (2006.01) G11B 23/40 (2006.01)
Patent
CA 2206364
The invention concerns a manufacturing process for the creation of an optical disk pressing matrix bearing a marking, particularly of the anti-pirate type. This process consists of interposing, between the turntable (3) of an information recording machine and a support (1) coated with a photosensitive resin (2), a layer (7) formed by zones of different reflectivity at the wavelengths of the light beam (4) used to record the information, and thus creating a marking. The invention is suitable for application in particular in the area of production of optical disks bearing a marking.
L'invention est un procédé de fabrication de matrices de pressage de disques optiques portant un marquage, particulièrement du type antipiratage. Le procédé de l'invention consiste à interposer entre le plateau tournant (3) d'une machine d'enregistrement d'informations et un support (1) portant une couche de résine photosensible (2), une couche (7) comportant des zones de réflectivités différentes aux longueurs d'ondes du faisceau lumineux (4) utilisé pour enregistrer les informations, et à créer une marque de cette façon. L'invention est particulièrement utile pour la production de disques optiques marqués.
Andre Pascal
Ledieu Jean
Digipress
Mcfadden Fincham
LandOfFree
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