Information carrier with a hologram

US6747768B1 · kind B1 · utility

Assignee

• XETOS AG · DE

Inventors

• Frank Knocke · Ebersberg, DE
• Dieter Theodor Ebert · Icking, DE

Key dates

• Filing date: Apr 25, 2002
• Grant date: Jun 8, 2004
• Expiry date: Apr 25, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G06K2019/0629
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An information carrier includes information in the form of a hologram. In order to increase protection against copying and/or as a simple recognizable additional security feature of this information carrier, the hologram is the combination of a transmission hologram and a reflection hologram.