OPTICAL RECORDING MEDIUM

PURPOSE:To improve durability, recording sensitivity and flexibility by using an organic high polymer film having heat resistance against a temperature for a protective film. CONSTITUTION:The protective film 4 made of polyimide which is the heat resistant organic high polymer material is laminated o...

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Bibliographic Details
Main Authors KUME MINORU, TSUJIOKA TSUYOSHI, MATSUURA KOTARO, YAMAMOTO SHIGEAKI, TATEZONO FUMIO
Format Patent
LanguageEnglish
Published 25.05.1990
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:PURPOSE:To improve durability, recording sensitivity and flexibility by using an organic high polymer film having heat resistance against a temperature for a protective film. CONSTITUTION:The protective film 4 made of polyimide which is the heat resistant organic high polymer material is laminated on a base film 11 and a protective film 5 made of inorganic material consisting of ZnS is laminated on the organic protective film 4. A recording layer 3 is formed on the upper surface of the inorganic protective film 5. On the surface of the layer 3, furthermore, the protective film 5 made of the inorganic material as well as the protective film 5 and the organic high polymer protective film 4 as well as the protective film 4 are laminated and formed in this order. Thus, the durability, the recording sensitivity and the flexibility are improved.
Bibliography:Application Number: JP19880289785