Device and method for verifying value documents

US7737417B2 · kind B2 · utility

Assignee

• GIESECKE & DEVRIENT GMBH · DE

Inventors

• Thomas Giering · Kirchseeon, DE
• Michael Bloss · Munich, DE
• Wolfgang Deckenbach · Schechen, DE
• Martin Clara · Villach, AT
• Hans-Peter Ehrl · Erding, DE

Key dates

• Filing date: Jul 19, 2005
• Grant date: Jun 15, 2010
• Expiry date: May 6, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G07D7/1205
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method and apparatus for checking luminescent value documents, in particular bank notes, with a luminescence sensor. The value document to be checked is irradiated to excite luminescence radiation, and the luminescence radiation emanating from the value document is detected with spectral resolution. Since the value document to be checked is transported past the luminescence sensor in the transport direction and is illuminated with an illumination area which extends in the transport direction, an effective measurement is possible even of value documents that emit very little luminescence radiation.