SEAL AND SEALING METHOD

SEAL AND SEALING METHOD

The invention relates to a seal containing a substrate which can be applied to an object to be sealed, so that said seal is changed when it is removed without authorization, wherein the substrate contains or comprises a polymer and/or a glass and at least one optical waveguide is arranged in the sub...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SCHADE, Wolfgang, FLACHENECKER, Günter, GORECKI, Christian, THOMA, Andreas, THIEL, Markus, RATHJE, Rainer
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ADVERTISING
CRYPTOGRAPHY
DISPLAY
DISPLAYING
EDUCATION
LABELS OR NAME-PLATES
PHYSICS
SEALS
SIGNS
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Beschreibung
Zusammenfassung:The invention relates to a seal containing a substrate which can be applied to an object to be sealed, so that said seal is changed when it is removed without authorization, wherein the substrate contains or comprises a polymer and/or a glass and at least one optical waveguide is arranged in the substrate, at least one first Bragg grating being arranged in said optical waveguide, wherein the substrate has a thickness of less than 200 μm. The invention further relates to a system having a seal of this kind and having an evaluation device, and also to a sealing method.