发明名称 |
SUPPORT D'ENREGISTREMENT OPTIQUE MULTI-NIVEAU A PUITS THERMIQUE TRANSPARENT POUR SYSTEME DE LECTURE/ECRITURE PAR LASER |
摘要 |
The invention concerns a multilevel recording medium for a laser beam read/write system, comprising at least a substrate (4a, 4b) and an assembly of layers forming a deep level (12) and at least a semi-transparent level (10), each of said levels having two stable states reversible under the effect of laser radiation. The invention is characterised in that the semi-transparent level comprises a layer (7) of phase-change material and at least a thermal absorption layer (21) located in front of the phase-change material layer, such that the laser beam passes through the thermal absorption layer before reaching the phase-change material.
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申请公布号 |
FR2813138(A1) |
申请公布日期 |
2002.02.22 |
申请号 |
FR20000010762 |
申请日期 |
2000.08.21 |
申请人 |
COMMISSARIAT A L'ENERGIE ATOMIQUE |
发明人 |
FARGEIX ALAIN;ROLLAND BERNARD;GEHANNO VERONIQUE;BRUNEAU JEAN MICHEL |
分类号 |
B41M5/26;G11B7/24;G11B7/243;G11B7/253;G11B7/2533;G11B7/2534;G11B7/257;(IPC1-7):G11B7/004 |
主分类号 |
B41M5/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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