MULTIPART COIN BLANK AND COIN

A coin blank provides an inner portion (1) and at least one outer portion (2) surrounding the inner portion (1). A dielectric isolation layer (3) is arranged between the inner portion (1) and the outer portion (2) and connects the inner portion (1) and the outer portion (2) in a force-locking manner...

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Bibliographische Detailangaben
Hauptverfasser:	BILAS, Thomas, LI, Konstantin, MEYER-STEFFENS, Klaus, SIEGEL, Stephan, WAADT, Günther, HUBER, Peter
Format:	Patent
Sprache:	eng ; lit
Schlagworte:	BRACELETS CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COINS HABERDASHERY HUMAN NECESSITIES JEWELLERY OTHER PERSONAL ADORNMENTS PHYSICS
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Beschreibung
Zusammenfassung:	A coin blank provides an inner portion (1) and at least one outer portion (2) surrounding the inner portion (1). A dielectric isolation layer (3) is arranged between the inner portion (1) and the outer portion (2) and connects the inner portion (1) and the outer portion (2) in a force-locking manner. The isolation layer (3) is transparent in a first wavelength range and may be based on a transparent polymer. The isolation layer (3) may contain additives absorbing and/or reflecting light in a second wavelength range.