Patent · US Active

Security element having machine-readable IR code

US12128703B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH · DE

Inventors

Stefan Bichlmeier · Unterhaching, DE
Matthias Pfeiffer · Boulder, US
Gerhard HAMPP · Munich, DE

Key dates

Filing date	Oct 16, 2020
Grant date	Oct 29, 2024
Priority date	—
Expiry date	Oct 16, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D25/382
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention relates to a security element having an optically variable security feature and a machine-readable security feature, which are at least partially arranged one above the other, wherein the security element is transparent or translucent in the region of the visible light and the machine-readable security feature forms a code. The machine-readable security feature is a combination of at least two different substances, a first IR substance and a second IR substance, wherein the first IR substance is arranged in a first areal region of the security element and the second IR substance is arranged in a second areal region of the security element, and wherein the first IR substance absorbs in a first IR wavelength region and the second IR substance absorbs in a second IR wavelength region. The invention also relates to a value document which has such a security element.

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