Security device

US6343745B1 · kind B1 · utility

Assignee

• GIESECKE & DEVRIENT GMBH · DE

Inventors

• Michael Bohm · Heimstetten, DE
• Theo Burchard · Tegernsee, DE
• Christian Schmitz · Wilrijk, BE

Key dates

• Filing date: Sep 2, 1999
• Grant date: Feb 5, 2002
• Expiry date: Sep 2, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B42D2033/16
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The invention relates to a security element for a security document such as a bank note, ID card or the like consisting of a translucent plastic layer having an opaque layer with gaps in the form of characters, patterns or the like recognizable in transmitted light. Additionally the security element has a magnetic layer in the form of spaced-apart magnetic areas forming a coding, the gaps recognizable in transmitted light being disposed in the magnetic layer-free intermediate areas of the coding.