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1. WO1984002586 - REFLECTIVE OPTICAL DATA STORAGE AND LASER RECORDING MEDIUM

Publication Number WO/1984/002586
Publication Date 05.07.1984
International Application No. PCT/US1983/001721
International Filing Date 02.11.1983
IPC
G11B 7/251 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
24Record carriers characterised by shape, structure or physical properties, or by the selection of the material 
241Record carriers characterised by the selection of the material
242of recording layers
251comprising inorganic materials dispersed in an organic matrix
CPC
G11B 7/251
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor
24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
241characterised by the selection of the material
242of recording layers
251comprising inorganic materials dispersed in an organic matrix
Y10S 430/165
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
430Radiation imagery chemistry: process, composition, or product thereof
165Thermal imaging composition
Applicants
Inventors
Priority Data
null30.12.1899null
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REFLECTIVE OPTICAL DATA STORAGE AND LASER RECORDING MEDIUM
(FR) SUPPORT REFLECTEUR OPTIQUE DE STOCKAGE DE DONNEES ET D'ENREGISTREMENT AU LASER
Abstract
(EN)
An improved reflective silver laser recording and data storage medium (11) for direct read after writing, having a protective gold plating (20) on the silver particles of the reflective surface. The gold plating increases the recording sensitivity resulting in higher contrast ratios for the recorded data. Increased contrast ratios between recorded and non-recorded reflective areas are obtained by the gold plating allowing lower laser energy for readout of recorded data. The reflective silver surface is plated with gold by an electroless ion displacement procedure.
(FR)
Support amélioré réflecteur en argent d'enregistrement au laser et de stockage de données (10) pour la lecture directe après l'écriture, possédant un placage de protection en or (20) sur les particules d'argent de la surface réfléchissante. Le placage en or accroît la sensibilité à l'enregistrement, ce qui se traduit par des rapports de contraste plus élevés pour les données enregistrées. Des rapports de contraste accrus entre les zones réfléchissantes enregistrées et non-enregistrées sont obtenus grâce au placage en or, ce qui permet d'utiliser une énergie laser plus basse pour la lecture des données enregistrées. La surface d'argent réfléchissante est plaquée en or par un procédé de déplacement d'ions non électrique.
Also published as
DE3390408
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