Patent · US Active

Electro-optical security element for securtiy and/or valuable document

US10167402B2 · kind B2 · utility

0Cited by

13References

13Claims

0Family size

Assignee

BUNDESDRUCKEREI GMBH · DE

Inventors

Joerg Fischer · Laboe, DE
Manfred Paeschke · Wandlitz, DE
Oliver Muth · Berlin, DE
Arthur Mathea · Berlin, DE

Key dates

Filing date	Jan 6, 2017
Grant date	Jan 1, 2019
Priority date	—
Expiry date	Mar 4, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/6565
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A security element for a security and/or valuable document includes a matrix based on an organic polymeric material and at least one electrically conductive pigment dispersed in the matrix and at least one organic luminescent substance dispersed in the matrix. In the presence of the conductive pigment the luminescent substance is capable of non-contact excitation of light emission where the particle size is less than 200 nm. The luminescent substance is not encapsulated and is directly surrounded by the matrix and is embedded therein.

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