Patent · US Active

See-through security element with microstructures

US8534708B2 · kind B2 · utility

12Cited by

19References

32Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Manfred Heim · Munich, DE
Marius Dichtl · Munich, DE
Michael Rahm · Bad Tölz, DE

Key dates

Filing date	Oct 16, 2007
Grant date	Sep 17, 2013
Priority date	—
Expiry date	Aug 18, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/10
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The present invention relates to a see-through security element (12), for security papers, value documents and the like, having at least one micropattern having a visual appearance that is viewing-angle dependent when looked through (26, 28). According to the present invention, the at least one micropattern is formed from an arrangement of a plurality of pattern elements (24) having a characteristic pattern spacing of 1 μm or more, and the see-through security element (12) exhibits a total thickness of 50 μm or less.

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