EP2838737B1 - Optisch variables sicherheitselement - Google Patents

Optisch variables sicherheitselement Download PDF

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Publication number
EP2838737B1
EP2838737B1 EP13717173.2A EP13717173A EP2838737B1 EP 2838737 B1 EP2838737 B1 EP 2838737B1 EP 13717173 A EP13717173 A EP 13717173A EP 2838737 B1 EP2838737 B1 EP 2838737B1
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EP
European Patent Office
Prior art keywords
microholes
layer
security element
sub
recording layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13717173.2A
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German (de)
English (en)
French (fr)
Other versions
EP2838737A1 (de
Inventor
Annett Bähr
Michael Rahm
André Gregarek
Georg Depta
Walter DÖRFLER
Harald Reiner
Simon Freutsmiedl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology GmbH
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Publication date
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Publication of EP2838737A1 publication Critical patent/EP2838737A1/de
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Publication of EP2838737B1 publication Critical patent/EP2838737B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/346—Perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser

Definitions

  • the invention relates to an optically variable security element for security papers, value documents and other data carriers, a method for producing such a security element, and a data carrier with such a security element.
  • Data carriers such as valuables or identity documents, but also other valuables, such as branded goods, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
  • Security elements with viewing-angle-dependent effects play a special role in the authentication of authenticity since they can not be reproduced even with the most modern copiers.
  • the security elements are thereby equipped with optically variable elements that give the viewer a different image impression under different viewing angles and, for example, show a different color or brightness impression and / or another graphic motif depending on the viewing angle.
  • ID cards such as credit cards or identity cards have long been personalized by laser engraving.
  • personalization by laser engraving the optical properties of the substrate material are irreversibly changed by suitable guidance of a laser beam in the form of a desired marking.
  • a laser marking makes it possible to combine the individualization of the data carriers with security elements and to integrate them more freely into the print image than in conventional customizations, such as in known method of ciphers.
  • the publication EP 0 219 012 A1 describes a badge with a partial lenticular structure. This lens structure inscribes information into the card at different angles with a laser. This information can then be detected only at this angle, so that when tilting the map, the different information appear.
  • Claim 1 is opposite DE 10 2006005000 demarcated.
  • the present invention seeks to provide a security element of the type mentioned above with an attractive visual appearance and high security against counterfeiting.
  • Microlenses are lenses whose size is below the resolution limit of the naked eye.
  • the microlenses are preferably spherical or aspherical and, for example, in the case of banknotes, advantageously have a diameter between 5 ⁇ m and 100 ⁇ m, preferably between 10 ⁇ m and 50 ⁇ m, particularly preferably between 15 ⁇ m and 20 ⁇ m.
  • the microlenses can also be larger and, for example, have a diameter between 100 .mu.m and 300 .mu.m. In all designs, the microlenses can also be designed as cylindrical lenses.
  • the diameter of the first microholes is preferably more than 10%, in particular more than 20%, and particularly preferably more than 30% larger as the diameter of the second microholes.
  • the diameter of the first microholes is expediently not more than 4 times, in particular not more than 3 times, the diameter of the second microholes. Due to the magnification effect of the microlenses, even a slight difference in the hole size of the first and second microholes leads to a good contrast difference of the incident light or transmitted light effect, as explained in more detail below.
  • the diameter of the second microholes is between 2 ⁇ m and 4 ⁇ m, and the diameter of the first microholes is between 3 ⁇ m and 8 ⁇ m.
  • the diameters of the first micro-holes are, for example, 0.5 ⁇ m to 4 ⁇ m larger than the diameters of the second micro-holes.
  • the microholes are each smaller than the associated microlenses.
  • the area ratio of microholes and associated microlens may be below 1.0 or below 0.5, below 0.2, or even below 0.1.
  • the first and second microholes are each formed substantially circular or linear.
  • the first and / or second microholes may be patterned, for example in geometric shapes such as squares, triangles or stars, or in the form of micro-characters such as letters, numbers or the like, in order to add an additional, hidden security feature to the security element integrate.
  • a pattern-shaped training is especially suitable for the larger first microholes.
  • first microholes differ at least in size and possibly also in their shape from the second microholes, the first microholes themselves advantageously all have the same shape and size, as do the second microholes.
  • the first microholes form a first motif in the form of patterns, characters or a code that is recognizable when the security element is viewed from a preselected first viewing direction
  • the second microholes form a second motif in the form of patterns, characters or an encoding. which can be seen in the case of transmitted light viewing of the security element from a preselected second viewing direction.
  • the first and second motif are usually different but may be identical.
  • the first and second viewing directions are preferably different, but may also be identical.
  • the first and second microholes are arranged independently of each other. In other equally advantageous designs, at least a portion of the second microholes lie entirely within the first microholes. For example, more than 50%, more than 75%, or even all second microholes may be completely within the first microholes.
  • a "motif in the subject" can be generated, in which a transmitted light motif appears within an incident light motif.
  • the security element may include a visible in incident light coat of arms, which is formed by the first microholes and in the interior of which when switching to the transmitted light observation, a logo is visible, which is formed by the second microholes.
  • the first and second viewing directions are expediently identical.
  • the first and / or second microholes are introduced in appropriate embodiments from different directions with laser radiation through the microlens array in the recording layer.
  • the microholes are then recognizable from the respective viewing direction from which they were introduced, in reflected light or transmitted light.
  • the first microholes may each be recognizable from a first viewing direction and the second microholes may each be recognizable from a second, different viewing direction.
  • first microholes is introduced from one direction, another group of first microholes from another direction.
  • the first motif formed by the first microholes then shows a tilting or alternating image whose partial images are formed by the different groups of first microholes.
  • the second microholes may be introduced from two or more different directions in the same way.
  • the motif parts or partial images that are visible from different viewing directions can be in a sense context and, for example, represent a sequence of images that proceeds in front of the eye of the observer when the security element is tilted, as in a flip-book. If the angle of insertion and hence the viewing angle changes continuously, the degree of transparency changes, and thus the brightness in which the motif appears when the security element tilts, changes continuously.
  • the first and second sublayers of the recording layer are advantageously formed by metal layers, for example by layers of aluminum, copper, silver, gold, chromium, nickel, tungsten, palladium or an alloy of these metals, such as an Al-Cu alloy.
  • the first and second sub-layers are formed by metal layers of different colors, such as aluminum and copper.
  • the second sub-layer is advantageously formed by a highly reflective metal layer having a reflectivity of 90% or more, for example by a vapor-deposited aluminum or silver layer.
  • the first and / or second sub-layer is advantageously opaque, wherein a layer is called opaque if its transmission in the visible is less than 1%, in particular less than 0.1%.
  • the recording layer consists of the first and second sub-layers, ie it contains no further layers.
  • one or more further layers are arranged between the first and the second partial layer of the recording layer.
  • one or more layers transparent to the laser for example dielectric layer (s) of SiO 2 (silicon dioxide), may be present between the first and second partial layers.
  • additional layers may be used, for example, to create a particular color and / or color-shift effects, and / or serve as an adhesion-enhancing layer (s).
  • the sub-layers as such each consist of several individual layers, which may also contain neutral layers.
  • the difference in diameter or area of the microholes in the same recording layer allows two distinct appearances of the security element to be coded for incident and transmitted light viewing.
  • a viewer looks at incident light viewing through the comparatively large first micro holes on the highly reflective second sub-layer, while the smaller second micro holes are not visible in particular due to their small size in incident light. Due to the high reflectivity of the second sub-layer, the first motif formed by the first micro-holes is therefore clearly visible in incident light, while the second motif remains hidden.
  • the first microholes present in the first partial layer preferably do not extend into the second partial layer. However, if the first and second sub-layers lie directly above one another, it is harmless in practice if the holes extend slightly, ie less than 1/10 or even less than 1/20 of the layer thickness into the second sub-layer due to the production. It is only essential that the remaining layer thickness of the second partial layer has a sufficiently high reflectivity and a sufficiently high opacity.
  • the security element at the same time contains a micro-optical representation arrangement, in particular a moiré magnification device, a moiré-type micro-optical magnification device, or a modulo magnification device.
  • a micro-optical representation arrangement in particular a moiré magnification device, a moiré-type micro-optical magnification device, or a modulo magnification device.
  • the security element preferably has a motif image between the carrier and the recording layer, which is subdivided into a plurality of cells, in each of which imaged areas of a predetermined background motif are arranged, wherein the microlens array forms a microlens grid which, upon viewing the motif image, forms the background motif reconstructed the imaged areas in the cells.
  • the motif image is advantageously in the form of a relief structure in an embossing lacquer layer arranged between the support and the recording layer.
  • provision can be made in particular for the first and second partial layers to follow the relief of the embossing lacquer layer, ie to have substantially the same relief structure.
  • the microlens array can be provided with a semitransparent cover layer and / or a cover layer present only in regions.
  • the microlens array it is presently preferred for the microlens array to be free of applied layers which impair or cancel out the optical effect of the microlenses.
  • the invention also includes a data carrier, in particular a value document, such as a banknote, a passport, a document, an identification card or the like, which is equipped with a security element of the type described.
  • a data carrier in particular a value document, such as a banknote, a passport, a document, an identification card or the like, which is equipped with a security element of the type described.
  • the security element can in an advantageous variant of the invention in particular be arranged in or over a window area or a through opening of the data carrier.
  • the first and / or second microholes are introduced from different directions with laser radiation through the microlens array into the recording layer.
  • only the first part-layer of the laser-sensitive recording layer is initially produced on the second main surface of the support in a first step and provided with the multiplicity of first microholes by the action of laser radiation.
  • the second sublayer of the laser-sensitive recording layer is then placed on the first sublayer and the second microholes are created through the first and second sublayer recording layers.
  • the at least one gap region forms a macroscopic motif visible to the naked eye, in particular without magnification by the microlenses. Its smallest dimensions are usually above 0.5 mm, typically at a few millimeters.
  • the material of the print layer may but need not penetrate into the microholes and / or the gap areas.
  • the microlens array is free of deposited layers that affect or cancel the optical effect of the microlenses.
  • the recording layer may be, for example, a 50 nm thick aluminum layer, for example, the printing layer is an imprinted solvent-based red lacquer layer.
  • the security element can be applied to a data carrier with a certain transparency in transmitted light, such as banknote paper. In advantageous embodiments, the security element is arranged in or above a window area or a through opening of a data carrier.
  • FIG. 1 shows a schematic representation of a banknote 10 with an optically variable security element 12 according to the invention, which is arranged above a through-opening 14 of the banknote 10.
  • the security element 12 appears semitransparent in partial regions depending on the direction of the transmitted light and, due to its application over the opening 14, can be viewed from its front side as well as from its rear side both in reflected light and in transmitted light.
  • the security element 12 shows in each case different visual appearances from these different viewing directions, which leads to a high attention and recognition value.
  • FIG. 2 schematically shows the layer structure of the security element 12 according to the invention in cross section, wherein only the parts of the layer structure required for the explanation of the principle of operation are shown.
  • the security element 12 includes a substantially transparent support 20 which is typically formed by a transparent plastic film, such as an approximately 20 micron thick polyethylene terephthalate (PET) film.
  • the carrier 20 has opposing first and second major surfaces, the first major surface 22 being provided with an array of microlenses 26.
  • the microlenses 26 are regularly arranged in the form of a microlens grid and form on the surface of the carrier film a two-dimensional Bravais grid with a preselected symmetry.
  • the Bravais grid of microlenses 26 can For example, have a hexagonal lattice symmetry or lower symmetry, such as the symmetry of a parallelogram grating.
  • the spherically or aspherically configured microlenses 26 preferably have a diameter of between 15 ⁇ m and 30 ⁇ m in the exemplary embodiment and are therefore invisible to the naked eye.
  • the thickness of the carrier 20 and the curvature of the microlenses 26 are matched to one another such that the focal length of the microlenses 26 substantially corresponds to the thickness of the carrier 20.
  • a laser-sensitive recording layer 30 is arranged, which consists of two superposed sub-layers, wherein the first sub-layer 32 is disposed between the carrier 20 and the second sub-layer 34.
  • the first and second sub-layers 32,34 are formed of metal layers of different colors and the second sub-layer has a particularly high reflectivity of 90% or more.
  • the first sub-layer 32 is formed by a copper layer 100 nm thick and the second sub-layer 34 by a 50 nm thick aluminum layer, which were vapor-deposited successively on the carrier 20.
  • first microholes 42 A part of the microholes (hereinafter referred to as first microholes 42) is present only in the first part-layer 32 and does not pass through the recording layer 30.
  • second microholes 44 Another part of the microholes (hereinafter referred to as second microholes 44) passes through the recording layer 30 having the first and second sublayers 32, 34.
  • the multiplicity of the first microholes 42 together form a first motif 46, in the exemplary embodiment the logo "G + D", which is recognizable when the incidental light of the security element is viewed from a preselected first viewing direction ( Fig. 4 (b) ).
  • the multiplicity of the second microholes 44 together form a second motif 48, in the embodiment the letter pair "PL”, which is recognizable when the security element is viewed by transmitted light from a preselected second viewing direction ( Fig. 5 (b) ).
  • the first microholes 42 have a diameter of 6 .mu.m
  • the second microholes have a diameter of only 4 .mu.m.
  • first and second motifs only from certain preselected viewing directions is a direct consequence of the generation of the microholes through the microlenses 26.
  • Fig. 3 To produce the security element 12 on the second main surface of the carrier 20, first a 100 nm thick copper layer 32 and applied to this a 50 nm thick aluminum layer 34, preferably in a vacuum vapor process. At these layer thicknesses, both the copper layer 32 and the aluminum layer 34 are opaque.
  • the aluminum layer 34 also has a particularly high reflectivity of more than 90%.
  • the coated carrier is then exposed from the side of the microlenses 26 from the desired later viewing direction 50 of the second motif with laser radiation, for example with the radiation of an Nd: YAG, Nd: YVO 4 or fiber laser.
  • the microlenses 26 focus the laser radiation on the recording layer 30, as in FIG Fig. 3 (a) indicated by the reference numeral 52.
  • the laser energy or laser power is chosen so that both the first sub-layer 32 and the second sub-layer 34 is removed so that continuous, circular second micro-holes 44 with a diameter of 2 to 4 ⁇ m are formed by the recording layer.
  • the laser beam travels the surface of the second motif 48, so that the entirety of the second microholes 44 forms the second motif 48.
  • the coated carrier is in turn subjected to laser radiation from the side of the microlenses 26 from the desired later viewing direction 54 of the first motif.
  • the microlenses 26 focus the laser radiation on the recording layer 30, as in FIG Fig. 3 (b) indicated by the reference numeral 56.
  • this step is chosen so that essentially only the first partial layer 32, but not the second partial layer 34, is removed.
  • the irradiation direction of the small amplitude laser may be circularly tilted about the desired viewing direction 54. In this way, circular first microholes having a diameter of 3 to 8 ⁇ m are produced.
  • the laser beam also travels the surface of the first subject 46 so that the entirety of the first microholes 42 forms the first subject 46.
  • each of the microholes 42, 44 is assigned a microlens 26, by means of which the microhole 42, 44 is produced on laser application, and by which the microhole is visible due to the reversibility of the beam path in the later viewing of the security element.
  • a 100 nm thick copper layer 32 is first applied to the second main surface of the carrier 20, preferably in a vacuum vapor method.
  • the carrier coated with the copper layer 32 is then exposed from the side of the microlenses 26 from the desired later viewing direction 54 of the first motif to laser radiation, for example to the radiation of an Nd: YAG, Nd: YVO 4 or fiber laser.
  • the microlenses 26 focus the laser radiation on the first sub-layer 32.
  • the laser energy or laser power is chosen so that the first sub-layer 32 is removed and circular first micro-holes are produced with a diameter of 3 to 8 microns.
  • the irradiation direction of the small amplitude laser may be circularly tilted about the desired viewing direction 54.
  • the laser beam travels the surface of the first motif 46, so that the entirety of the first microholes 42 forms the first motif 46.
  • a 50 nm thick aluminum layer 34 is applied to the copper layer 32, preferably vapor-deposited.
  • the coated carrier is then exposed from the side of the microlenses 26 forth from the desired later viewing direction 50 of the second motif with laser radiation.
  • the microlenses 26 focus the laser radiation onto the recording layer 30.
  • the laser energy or laser power is chosen in this case, in that both the first sub-layer 32 and the second sub-layer 34 are removed, so that continuous, circular second micro-holes 44 (with a diameter of 2 to 4 ⁇ m) are formed through the entire recording layer 30.
  • the laser beam travels the surface of the second motif 48, so that the entirety of the second microholes 44 forms the second motif 48.
  • FIG. 4 shows the visual appearance of the security element 12 thus produced as viewed from the side of the first major surface 22 (front side), FIG Figs. 4 (a) and 4 (b) the appearance of two viewing directions in incident light, ie in reflection, and shows Figs. 4 (c) and 4 (d) the appearance of two viewing directions in transmitted light, ie in transmission, show.
  • the first motif (logo "54") is transmitted through the microlenses 26 through the microlenses 26 to the microholes 42 of the first sub-layer 32 and thus to the underlying second sub-layer 34.
  • G + D bright and with good contrast silver in front of the copper - colored background of the first partial layer 32 visible, as in Fig. 4 (b) shown.
  • the first microholes 42 are not visible in incident light, since in this case the viewer is looking through the microlenses 26 at a location of the first sublayer 32 lying outside the microholes 42 ,
  • the second micro holes 44 are less conspicuous or not at all due to their much smaller area in reflected light to recognize.
  • the security element 12 thus appears from such a viewing direction as a homogeneous, copper surface, as in Fig. 4 (a) shown. By fading back and forth of the security element 12, the viewer in reflected light between the appearances of the FIGS. 4 (a) and 4 (b) switch.
  • the recording layer 30 is semitransparent through the plurality of second micro holes 44, depending on the direction of view. Since the microholes 44 are viewed through the microlenses 26 in this viewing direction, the light incident from the backside each appears to be substantially at the angle through the microholes 44 in which they were introduced upon generation by the laser beam. From viewing direction 50 ( Fig. 3 (a) ), the second motif formed by the second microholes (letter sequence "PL") in transmission is bright against the dark background of the metallic recording layer 30, as shown in FIG Fig. 4 (d) shown.
  • the second microholes 44 are not visible in transmitted light, since in this case the viewer passes through the microlenses 26 to a position of the first or second sublayer lying outside the microholes 44 looks. Both the first and the second sub-layers are opaque, so that the security element 12 appears from such a viewing direction as a homogeneous, dark surface, as in FIG Fig. 4 (c) shown. By fading back and forth of the security element 12, the viewer in the transmitted light between the appearances of the FIGS. 4 (c) and 4 (d) switch.
  • FIG. 5 shows the visual appearance of the security element 12 as viewed from the side of the second main surface 24 (back), wherein Fig. 5 (a) the appearance in reflected light and Fig. 5 (b) the appearance illustrated in transmitted light.
  • the security element 12 When viewed in transmitted light, the security element 12 appears semitransparent due to the multiplicity of second microholes 44 in a large angular range. In contrast to the viewing from the front side, the second microholes 44 are not viewed through micro-lenses 26 in the rear-side view. Rather, the microlenses 26 collect the light incident from the first major surface 22 and focus it on the second microholes 44 to give a wide range of angles below which the second motif 48 formed by the microholes 44 appears bright from the rear.
  • the first microholes 42 do not pass through the recording layer 30, so that the first motif 46 can not be seen in the transmitted light because of the opaque second sublayer 34 from the rear side. All in all sees the viewer in a wide angular range, the brightly lit letter sequence "PL" against a dark background, as in Fig. 5 (b) illustrated. Since the second motif appears mirror-inverted when viewed from the rear side, a mirror-symmetric motif is preferably selected as the second motif, or a motif that is mirror-neutral, ie a motif whose recognizability is not affected by the reflection, such as a geometric pattern, an architectural, technical or nature motive.
  • the insertion angle and thus also the viewing angle of the first and / or second microholes can be varied continuously over the extent of the first or second motif 46, 48 in one or even in two spatial directions.
  • Such a continuous variation can be realized for example by a suitable deflection system for the laser radiation.
  • the brightness of the first or second motif 46, 48 then changes continuously when viewed in reflected light or transmitted light when tilting the security element.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
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EP13717173.2A 2012-04-18 2013-04-16 Optisch variables sicherheitselement Active EP2838737B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012007747A DE102012007747A1 (de) 2012-04-18 2012-04-18 Optisch variables Sicherheitselement
PCT/EP2013/001127 WO2013156149A1 (de) 2012-04-18 2013-04-16 Optisch variables sicherheitselement

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EP2838737A1 EP2838737A1 (de) 2015-02-25
EP2838737B1 true EP2838737B1 (de) 2017-12-13

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EP (1) EP2838737B1 (es)
CN (1) CN104245346B (es)
AU (2) AU2013248632B2 (es)
DE (1) DE102012007747A1 (es)
IN (1) IN2014KN02263A (es)
TW (1) TWI574211B (es)
WO (1) WO2013156149A1 (es)

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DE102015006793A1 (de) * 2015-05-27 2016-12-01 Giesecke & Devrient Gmbh Optisch variables Sicherheitselement
GB2539390B (en) 2015-06-10 2018-07-25 De La Rue Int Ltd Security devices and methods of manufacture thereof
CN105096738A (zh) * 2015-09-11 2015-11-25 武汉威杜信息科技有限公司 一种防伪方法
DE102015015991A1 (de) * 2015-12-10 2017-06-14 Giesecke & Devrient Gmbh Sicherheitselement mit Linsenrasterbild
DE102016002451A1 (de) * 2016-02-29 2017-08-31 Giesecke & Devrient Gmbh Prägeplatte, Herstellungsverfahren und geprägtes Sicherheitselement
DE102016013242A1 (de) * 2016-11-07 2018-05-09 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit optisch variablem Durchsichtselement
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CN112334320B (zh) * 2018-07-03 2023-01-24 克瑞尼股份有限公司 具有展现出提高的防收割性的附接安全装置的安全证件
DE102018005705A1 (de) * 2018-07-19 2020-01-23 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit Linsenrasterbild
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TWI574211B (zh) 2017-03-11
DE102012007747A1 (de) 2013-10-24
AU2013248632A1 (en) 2014-11-06
CN104245346A (zh) 2014-12-24
CN104245346B (zh) 2016-07-06
AU2017200729A1 (en) 2017-02-23
IN2014KN02263A (es) 2015-05-01
TW201344588A (zh) 2013-11-01
EP2838737A1 (de) 2015-02-25
AU2013248632B2 (en) 2016-11-03

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