Apparatus and method for detecting the authenticity of secured documents

US7092583B2 · kind B2 · utility

Assignee

• BUNDESDRUCKEREI GMBH · DE

Inventors

• Benedikt Ahlers · Berlin, DE
• Anett Bailleu · Berlin, DE
• Arnim Franz-Burgholz · Berlin, DE
• Oliver Muth · Berlin, DE
• Manfred Paeschke · Wandlitz, DE
• Hans Zerbel · Berlin, DE

Key dates

• Filing date: Mar 15, 2002
• Grant date: Aug 15, 2006
• Expiry date: Nov 4, 2023

Classification

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

Abstract

A method and apparatus are disclosed for determining the authenticity of secured documents which include an authentication element of the type which, when excited with radiation of a specific excitation wavelength, emits radiation which can be detected by a detection unit and evaluated by an evaluating unit. The intensity profile of the emitted radiation is determined in a specified wavelength range over a predetermined measuring period after excitation and analyzed to determine authenticity of the secured document.