Patent · US Active

Security element and method for the production thereof

US8778481B2 · kind B2 · utility

13Cited by

9References

23Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Wittich Kaule · Grafing, DE
Manfred Heim · Munich, DE
Marius Dichtl · Munich, DE
Winfried Hoffmuller · Bad Tölz, DE

Key dates

Filing date	Feb 10, 2006
Grant date	Jul 15, 2014
Priority date	—
Expiry date	May 4, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24917
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The present invention relates to a security element for protecting valuable articles, having a first and a second authenticating feature. The first authenticating feature comprises a first arrangement having a plurality of focusing elements present in a first grid, and a second arrangement having a plurality of microscopic structures present in a second grid. Here, the first and second arrangement are disposed in such a way that the microscopic structures of the second arrangement are seen magnified when viewed through the focusing elements of the first arrangement. The second authenticating feature is machine and/or visually verifiable and is not influenced by the first arrangement of the first authenticating feature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.