Patent · US Active

Security element provided with an optically-variable layer and method for the production thereof

US8276945B2 · kind B2 · utility

6Cited by

10References

45Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Manfred Heim · Munich, DE
Friedrich Kretschmar · Munich, DE

Key dates

Filing date	Oct 6, 2005
Grant date	Oct 2, 2012
Priority date	—
Expiry date	Mar 14, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2035/24
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The present invention relates to a security element for securing valuable articles, having an optically variable layer (20) that imparts different color impressions at different viewing angles. According to the present invention, in a covering area (32), a semi-transparent ink layer (34) is disposed on top of the optically variable layer (20), the color impression of the optically variable layer (20) being coordinated with the color impression of the semi-transparent ink layer (34) in the covering area (32) when viewed under predefined viewing conditions.

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