Patent · US Active

Security element comprising micro-reflectors for a perspective representation of a motif

US11325412B2 · kind B2 · utility

0Cited by

6References

17Claims

0Family size

Assignee

GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH · DE

Inventors

Kai Hermann Scherer · Munich, DE
Raphael Dehmel · Neubeuern, DE
Maik Rudolf Johann SCHERER · Grainau, DE

Key dates

Filing date	Oct 9, 2019
Grant date	May 10, 2022
Priority date	—
Expiry date	Oct 9, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/12
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A flat security element with microreflectors arranged as a microreflector pattern in a main plane of the security element. The microreflectors present a motif made up of image points to a viewer. The motif appears for the viewer as lying outside the main plane of the security element. Two of the microreflectors are adjusted in each case to produce one of the image points of the motif appearing for the viewer as lying outside the main plane. The microreflector pattern has several groups of microreflectors. Each of the groups is provided to represent to the viewer a perspective view of the motif after tilting the security element about an axis lying in the main plane. Image points of the motif are shifted by shift ranges of different sizes through the tilting.

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