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Data carrier comprising an optically variable element

A data-carrying, variable technique used to produce a tilt effect when alternating between viewing and tilt. It can solve the problems of isolated anti-counterfeiting features and inability to integrate

Inactive Publication Date: 2009-09-16
GIESECKE & DEVRIENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of plain embossing is that it cannot be integrated into the colored intaglio image, but can only be used as an isolated security feature

Method used

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  • Data carrier comprising an optically variable element
  • Data carrier comprising an optically variable element
  • Data carrier comprising an optically variable element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] figure 1 An inventive data carrier 1 with an optically variable structure 2 is shown. The optically variable structure 2 is a security feature which can be verified without aids and which together with other security features optically serves to check the authenticity of the data carrier. Other security elements may be, for example, security threads, watermarks or the like. It is preferred within the scope of the invention that the optically variable structure 2 is arranged in the region of the intaglio pattern 3 of the value document 1 . The geometric and color design of the optically variable structure 2 can be adapted to the intaglio pattern 3 . Depending on how the intaglio pattern 3 is made, the optically variable structure 2 may also be fully integrated in said intaglio pattern.

[0052] However, the security element of the invention can alternatively be arranged at any other location on the value document 1 .

[0053] It is especially advantageous to use the ...

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PUM

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Abstract

The invention relates to a data carrier, the data carrier (1) comprising an optically variable structure (2) provided with a relief structure (5) having raised areas and a first coating in contrast to the surface of the data carrier (4). The combination of the relief structure and the first coating is such that at least part of the coating is fully visible when viewed from a vertical position and covered when viewed at an angle, thereby creating a tilt effect when viewed alternately between vertical and oblique. Only some areas are equipped with the first coat. At least some areas of the optically variable structure also comprise a second coating (6) also in contrast to the data carrier surface and arranged such that said second coating is at least in some areas opposite to the first coating overlap.

Description

technical field [0001] The invention relates to a data carrier with an optically variable structure having an embossed structure with raised areas and a first coating in contrast to the surface of the data carrier, the embossed The structure and the coating are combined such that at least part of the coating is fully visible when viewed vertically and hidden when viewed obliquely, thereby creating a tilt effect when viewing alternately between vertically and obliquely. The invention also relates to a method of manufacturing such a data carrier. Background technique [0002] It is already known to equip data carriers (for example bank notes, value paper, credit or ID cards, etc.) with optically variable security elements, in particular optically variable diffractive structures, such as holograms. The prevention of forgery by means of holograms is based on the different images of the hologram when changing the viewing angle relative to the hologram. Such optically variable i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B42D15/00G07D7/12G07D7/20B42D15/10B41M3/14B42DG07D
CPCB42D2035/28B42D2031/14B42D2035/20B42D2033/20B42D25/425B42D25/324B42D2035/16B42D15/0013B42D25/29G02B5/0205
Inventor 罗杰·亚当齐克彼得·弗朗兹
Owner GIESECKE & DEVRIENT GMBH