Phonographic record and process for its production

Phonographic record and process for its production

A multi-layered phonographic record comprises a metal coating arranged between a middle layer and a transparent sound-carrier layer. The metal layer may be vapour-deposited onto an intermediate layer or onto the underside of the sound-carrier layer. The metal layer consists of an alloy or a noble me...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: P. FISCHER,MICHAEL
Format: Patent
Sprache:eng ; ger
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A multi-layered phonographic record comprises a metal coating arranged between a middle layer and a transparent sound-carrier layer. The metal layer may be vapour-deposited onto an intermediate layer or onto the underside of the sound-carrier layer. The metal layer consists of an alloy or a noble metal.