Invention Grant
- Patent Title: Security element
- Patent Title (中): 安全元素
-
Application No.: US12304522Application Date: 2007-06-13
-
Publication No.: US08740095B2Publication Date: 2014-06-03
- Inventor: Marius Dichtl
- Applicant: Marius Dichtl
- Applicant Address: DE Munich
- Assignee: Giesecke & Devrient GmbH
- Current Assignee: Giesecke & Devrient GmbH
- Current Assignee Address: DE Munich
- Agency: Lathrop & Gage LLP
- Priority: DE102006029850 20060627
- International Application: PCT/EP2007/005201 WO 20070613
- International Announcement: WO2008/000351 WO 20050103
- Main IPC: G06K19/06
- IPC: G06K19/06

Abstract:
The present invention relates to a security element for security papers, value documents and the like, having a micro-optical moiré magnification arrangement having a motif image (30) that consists of a planar periodic or at least locally periodic arrangement of a plurality of micromotif elements (36, 38), and a planar periodic or at least locally periodic arrangement of a plurality of microfocusing elements for the moiré-magnified viewing of the micromotif elements (36, 38) of the motif image, the motif image (30) including two or more sub-regions (32, 34) having micromotif elements (36, 38) that differ from each other in their contrast, and wherein the shape of the sub-regions (32, 34) forms, due to the contrast differences in the micromotif elements (36, 38), a perceptible macroscopic piece of image information in the form of characters, patterns or codes.
Public/Granted literature
- US20090322071A1 Security Element Public/Granted day:2009-12-31
Information query