Patent · US Active

Security device

US10207531B2 · kind B2 · utility

4Cited by

8References

39Claims

0Family size

Assignee

SECTAG GmbH · DE

Inventors

Frank Seils · Zell im Wiesental, DE
Markus Koch · Neu-Ulm, DE
Peter Rogin · Riegelsberg, DE

Key dates

Filing date	Aug 14, 2017
Grant date	Feb 19, 2019
Priority date	—
Expiry date	Aug 14, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49828
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A security device includes a plurality of diffractive surface elements arranged on a carrier element. A surface covered by the diffractive surface elements on the carrier element can occupy at least a partial region of the carrier element. Each individual diffractive surface element can have a three-dimensional surface structure. A portion of the plurality of the diffractive surface elements can form a first surface element group including the portion of the plurality of diffractive surface elements, and an orientation of the diffractive surface elements in the first surface element group can be matched to each other wherein together they make a single first image point of an associated first symbol to be represented visible to an observer under particular observation conditions.

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