Optical recording medium

There is provided an optical recording medium including: three reproduction layers, wherein reflectance R1, R2, and R3 of the three reproduction layers on a side of a surface irradiated with reproduction light is equal to or greater than 5%, and wherein any absolute value of a difference delta R bet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TAKAHASHI KENSAKU, KOSAKA HIDEHIRO, OTA YO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:There is provided an optical recording medium including: three reproduction layers, wherein reflectance R1, R2, and R3 of the three reproduction layers on a side of a surface irradiated with reproduction light is equal to or greater than 5%, and wherein any absolute value of a difference delta R between two selected from the reflectance R1, R2, and R3 is equal to or less than 7%.