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Security element comprising groove or rib-shaped structural elements

A technology for anti-counterfeiting components and structural components, which can be used in printing, information-bearing cards, etc., and can solve problems such as complex manufacturing

Active Publication Date: 2015-09-30
GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The required structure is relatively complex to manufacture

Method used

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  • Security element comprising groove or rib-shaped structural elements
  • Security element comprising groove or rib-shaped structural elements
  • Security element comprising groove or rib-shaped structural elements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] figure 1 Schematically shown is a sectional view through a security element 1 comprising a reflective microrelief structure 2 formed in a substrate. At its top, the base comprises a plurality of structural elements, which in the shown case are formed as ribs extending perpendicular to the plane of the drawing and which have, transverse to the longitudinal direction, on their surface a circular arc profile. The individual structural elements 3 thus have partially cylindrical side surfaces. Instead of the described designs, other contours are also possible, for example elliptical or parabolic shapes as the basis for the contour. In this regard, reference is made to the above general part of the description.

[0049] Parallel incident light 4 is reflected in a sector 5 at each structural element 3 of the microrelief structure 2 . By way of example, the beams 6a, 6b and 6c of reflected light are marked. The angular extent of the sector 5 is at least 30°, preferably not...

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PUM

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Abstract

The invention relates to a security element for producing documents of value such as bank notes, cheques or similar, and which comprises an upper side on which a micro-relief structure (2) is formed that has at least two sub-regions (8, 9) each of which comprises a plurality of groove and / or rib-shaped adjoining structural elements (3) that extend along in a longitudinal direction (10, 11) and are reflective or backscattering, the longitudinal directions (10, 11) of said sub-regions (8, 9) being different. Each of these structural elements (3) is non-resolvable to the naked eye in relation to the width transverse to the longitudinal direction (10, 11), and fans out parallel light (4) incident thereupon achromatically in a fan (5) that lies transversely to the longitudinal direction (10, 11) and has an opening angle of at least 30°.

Description

technical field [0001] The invention relates to a security element for producing value documents, such as banknotes, checks or the like, comprising a top on which a microrelief structure is formed, said microrelief structure having at least Two sub-regions, each sub-region comprising a plurality of groove-like or rib-like structural elements adjacent to each other extending in a longitudinal direction and which are reflective or backscattering, the longitudinal directions of the sub-regions being different . [0002] The invention also relates to a value document having such a security element. [0003] The invention also relates to a method for the production of security elements for producing value documents, such as bank notes, checks or the like, provided that the substrate comprises a top and on which a microrelief structure is formed, which having at least two sub-regions, each sub-region comprising a plurality of groove-like or rib-like structural elements adjacent to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/00
CPCB42D2035/50B42D25/29B42D2035/34B42D25/00B42D25/30B42D25/40B42D25/324
Inventor C.富斯H.洛赫比勒
Owner GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH