Patent · US Active

Security element, value document comprising such a security element and method for producing such a security element

US9176266B2 · kind B2 · utility

14Cited by

34References

22Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Christian Fuhse · Otterfing, DE
Manfred Heim · Munich, DE
Michael Rahm · Bad Tölz, DE
Andreas Rauch · Ohlstadt, DE
Stefan Bichlmeier · Unterhaching, DE

Key dates

Filing date	Dec 3, 2010
Grant date	Nov 3, 2015
Priority date	—
Expiry date	Dec 3, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D2035/20
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A security element for a security paper, value document or the like, having a carrier which has a reflective areal region which is divided into a multiplicity of reflective pixels. The area of each pixel is smaller than the area of the reflective areal region by at least one order of magnitude. Each pixel has at least one reflective facet which is formed in a surface of the carrier, and the at least one reflective facet reflects light incident along a predetermined direction on the areal region directionally in a reflection direction predefined by the orientation of the facet. The orientations of the facets of different pixels have a substantially random variation over the reflective areal region.

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