WO2020094494A1 - Élément de sécurité doté d'éléments de structure associés spatialement les uns aux autres en couches différentes - Google Patents

Élément de sécurité doté d'éléments de structure associés spatialement les uns aux autres en couches différentes Download PDF

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Publication number
WO2020094494A1
WO2020094494A1 PCT/EP2019/079752 EP2019079752W WO2020094494A1 WO 2020094494 A1 WO2020094494 A1 WO 2020094494A1 EP 2019079752 W EP2019079752 W EP 2019079752W WO 2020094494 A1 WO2020094494 A1 WO 2020094494A1
Authority
WO
WIPO (PCT)
Prior art keywords
security
structural
layer
security element
layers
Prior art date
Application number
PCT/EP2019/079752
Other languages
German (de)
English (en)
Inventor
Ulrich Bielesch
Michael MAUDERER
Original Assignee
Bundesdruckerei Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bundesdruckerei Gmbh filed Critical Bundesdruckerei Gmbh
Priority to EP19798042.8A priority Critical patent/EP3877194A1/fr
Publication of WO2020094494A1 publication Critical patent/WO2020094494A1/fr

Links

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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D13/00—Loose leaves modified for binding; Inserts
    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • 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
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • 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
    • B42D25/45—Associating two or more layers
    • B42D25/46—Associating two or more layers using pressure

Definitions

  • the present invention relates to a security element for use for a security document and a method for producing a security element for use for a security document.
  • the invention also relates to a security document and a method for producing a security document.
  • a security document is usually composed of several layers, which are preferably connected to one another by lamination or lamination.
  • the data to be introduced for personalizing the document is introduced under a preferably transparent cover layer within the material to protect against manipulation. This can be done by
  • Laser personalization can be accomplished in the otherwise finished data carrier.
  • Another method provides for the data carrier to be provided with a preferably transparent cover layer after personalization.
  • a value or security document can be distorted by removing the top layer and, after manipulating the underlying data, a new one
  • Holograms can be used to secure the document against manipulation, as described, inter alia, in the publications WO 2017 109 119 A1, DE 10 2007 042 386 A1, EP 2 738 624 B1.
  • a special hologram film is exposed accordingly and applied to the data carrier. Microstructuring of the surface of a
  • DE 697 23 283 T2 presents a security feature in which information is introduced into several layers of the document by perforating the data carrier.
  • a security element is also understood to mean a structural unit which comprises at least one security feature.
  • Security elements serve to secure security documents, which also include value documents, against forgery or copying.
  • a security feature can be an independent structural unit that can be connected, for example glued, to a security document, which can also be a value document. However, it can also be an integral part of a security document.
  • a security feature is a structure that can only be produced or reproduced with increased effort compared to simple copying or not at all without authorization.
  • Security documents typically have a substrate, a printing layer and optionally a transparent cover layer.
  • a substrate is a carrier structure to which the printing layer with information, images, patterns and the like is applied. Suitable materials for a substrate include, among other things, all customary materials based on paper and / or plastic.
  • examples for Security documents are ID cards, passports, driving licenses, ID cards, access control ID cards, visas, tax signs, tickets,
  • This task is used by a security element for a
  • a security document according to claim 1 a security document according to claim 15, a method for producing a security element for use for a security document according to claim 16 and a method for producing a security document according to claim 20.
  • the dependent claims contain further advantageous refinements of the invention.
  • the security element according to the invention is for use with a
  • Security document designed, for example as a component or as
  • Layer arrangement as part of a security document. It comprises at least two, preferably more than two, layers firmly connected to one another.
  • At least two layers each comprise a number of structural elements.
  • a structural element spatially assigned to the first structural element is present in at least one first structural element of a first layer in at least one further layer, that is to say in a layer other than the first layer.
  • the structural element of the further layer spatially assigned to the first structural element has a different appearance than the first structural element of the first layer.
  • the present invention enables the securing of a value and / or
  • Security document by a security element which in the different layers, the surface can also be viewed as a layer of the Document has spatially assigned structural elements in different manifestations.
  • the manipulation of a layer or the surface is due to the mismatch in the appearance of the
  • Structural elements of at least one other layer are clearly recognizable in the other layers. Manipulation or replacement of a layer eliminates this
  • the security element can comprise a surface.
  • the at least one first structural element of the first layer and the structural element of the further layer spatially assigned to the first structural element are advantageously at a certain angle with respect to a surface normal of the surface
  • the structural elements are arranged offset from one another in a direction that includes a certain angle with the surface normal.
  • the structural elements can, for example, be arranged offset from one another along a direction which includes an angle between 0 degrees and 45 degrees with the surface normal.
  • a shift of the structural elements in one direction with an angle of more than 0 degrees to the surface normal improves the security against forgery in that the different structural elements in a plan view of the
  • Structural element of the further layer has an identical position with respect to its x-coordinates and its y-coordinates of a reference system consisting of a z-axis running parallel to a surface normal of the surface, an x-axis running perpendicular to the z-axis and one perpendicular to the z- Axis and the y axis running perpendicular to the x axis.
  • Spatially assigned in this variant means that the mutually assigned structural elements, displaced in relation to one another in the direction of the z-axis, are arranged in different layers, that is to say preferably one above the other in a plan view of the surface.
  • a number of layers are optically at least partially transparent, so that the structural elements of different layers that are spatially assigned to one another are visually perceptible.
  • a cover layer and at least one layer below it can be made transparent.
  • structural elements that are spatially assigned to one another in these layers can be perceived visually separately when viewed at certain angles, and it can be checked in a simple manner whether the structural elements of the different layers correspond to one another.
  • the structural elements can be arranged on the surface and / or in the surface and / or inside a layer. At least one structural element preferably comprises a number of structural components, for example as depressions, for example in the form of bores and / or
  • Elevations and / or cavities and / or pixels, for example colored pixels, can be configured. Further configurations of the structural elements or structural components can be achieved by changing the material of at least one layer, for example in the form of blackening by carbonization.
  • the at least one structural element can have a periodic structure. A number of structural components of the structural element can form a periodic structure. The use of periodic structures makes it easier to identify tampering and thus enables the authenticity of a security document to be checked quickly.
  • Different layers differ from one another in terms of their size and / or their shape and / or their color and / or their transparency and / or their material and / or their material structure.
  • the appearance of the structural elements that are spatially assigned to each other makes manipulation significantly more difficult and thus increases the security against forgery.
  • the structural element of a layer advantageously differs from the starting material of the layer with regard to at least one material property, for example with regard to its color and / or its transparency and / or its material structure. This improves the visual perceptibility of the structural element and simplifies checking the authenticity of the security element or of a security document.
  • the security element preferably comprises at least one layer which comprises laser-sensitive material, that is to say material suitable for processing by means of a laser, or which consists of laser-sensitive material.
  • At least two layers comprise laser-sensitive material.
  • Laser-sensitive material enables simple and inexpensive production of the structural elements, in particular the production of structural elements with very small dimensions.
  • the structural element can, for example, structural components with dimensions of less than 100 micrometers (100 pm), in particular less than 10
  • the security element is for one
  • Security documents designed with certain security information and a structure of the structural elements contains security information and / or
  • personalized data i.e. Information that the owner of the
  • the security element can in particular comprise a transparent cover layer with a surface, the cover layer comprising structural elements and the structural elements being designed such that when viewed perpendicular to the
  • the structural elements of the cover layer are not visible and at Viewing at an acute angle, the structures formed by the structural elements are visible as matted surfaces and when the light falls at an angle, the structural elements show the effect of an optical grating by the
  • the security document according to the invention is made up of a number of layers, preferably two or more layers. It comprises a previously described security element according to the invention.
  • the security document according to the invention has the features and advantages mentioned above in connection with the security element according to the invention.
  • it can comprise laminated layers.
  • the security document can be, for example, an identity card, a passport, a driver's license, a company ID card or another security document.
  • Security document comprises the following steps: At least two layers, which advantageously comprise materials that differ from one another, are firmly connected to one another, for example by lamination or lamination. Structural elements that are spatially assigned to one another are produced in different layers by means of laser radiation. The structural elements of different layers that are spatially assigned to one another can be in a direction that is at a certain angle, for example between 0 degrees and 45 degrees, with a
  • the structural elements can be superimposed in the direction of a z-axis
  • the z-axis is advantageously, but not necessarily, perpendicular to the surface of the security document, for example to the card surface.
  • the structural elements and / or structural components of the structural elements are preferably produced in several layers at the same time. This can
  • step of generating the structural elements can be carried out following the step of connecting the layers to one another.
  • the structural elements and / or structural components of the structural elements can be generated by means of ultrashort laser pulses, for example with a pulse duration of less than 10 picoseconds (10 ps), in particular less than 1 picosecond (1 ps) or less than 500 femtoseconds (500 fs).
  • ultrashort laser pulses for example with a pulse duration of less than 10 picoseconds (10 ps), in particular less than 1 picosecond (1 ps) or less than 500 femtoseconds (500 fs).
  • micro or nano laser structures can be manufactured comparatively easily with ultra-short laser pulses.
  • the use of ultra-short laser pulses enables precise manufacture and efficient generation of the structural elements.
  • ultrashort laser pulses minimize or avoid thermal or mechanical damage to the structural elements during processing. With a suitable choice of processing parameters, almost melt-free processing with high precision is possible. Due to the short interaction time of the ultrashort laser pulses with the material, the material removal does not cause the color of the material to change.
  • Structural elements are generated.
  • Layers are moved relative to a focused laser beam and / or scanned by a focused laser beam.
  • the movement of the interconnected layers relative to a focused laser beam is preferably carried out in an x-y plane. Scanning can be done using movable mirrors.
  • a laser-sensitive layer with a, preferably periodic structure
  • at least one laser-sensitive layer underneath with a laser marking which is precisely positioned relative to the structural elements, preferably below the structural elements of the other layers.
  • the material is moved relative to the focused laser beam and / or scanned by the focused laser beam using movable mirrors. Portions of the laser radiation penetrating into the material of the document are absorbed by the different layers, which then, depending on the nature of the layer,
  • Security document according to the invention at least one security element according to the invention or a security element produced according to the invention is connected to a number of further layers.
  • composition described that it contains components A, B and / or C, the composition A alone; B alone; C alone; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination.
  • Fig. 1 shows schematically a section of a variant of a
  • FIG. 2 shows schematically the section of a shown in Figure 1
  • FIG. 1 a section of a is shown as an example and not to scale
  • the security document 10 is composed of several layers 1, including a preferably transparent cover layer 2. Individual layers 1 can also be designed as foils. The layers 1 are connected to one another, for example by lamination, to form a document body.
  • the information which is characteristic of the document such as, for example, personal text elements and / or graphic representations and / or images, for example portraits, can be located under the preferably transparent cover layer 2.
  • the security element 11 has a surface 3.
  • a z-axis of a reference system is defined parallel to a surface normal 4 of the surface 3.
  • An x-axis is perpendicular to the z-axis.
  • a y-axis is perpendicular to the x-axis and the z-axis.
  • a first layer in the variant shown the cover layer 2, comprises a number of structural elements 21.
  • Another layer 1 or more further layers 1 comprise structure elements 21 spatially assigned to the first layer
  • Structural elements 22 In the variant shown, the structural elements 22 spatially assigned to the structural elements 21 of the first layer are arranged in a second layer 1 arranged below the first layer 2. The the
  • Structural elements 22 spatially assigned to structural elements 22 can also be arranged in another or in several other layers 1.
  • Each structural element 21 of the first layer 2 is preferably at least one structural element 22 which is displaced in the direction of the z-axis and preferably has the same x and y coordinates in a further layer 1 or in a plurality of further ones
  • FIG. 2 shows, by way of example and not to scale, a cross section through a document body 10 with the different layers or foils 1
  • the security element 11 is manufactured, which is in at least two different layers
  • the structural elements 21 and 22 are coupled to one another in a precise location due to the manufacturing method.
  • the structural elements 21 form a periodic structure on the surface 3, which is not visible when viewed perpendicular to the surface 3 and thus the structural elements 22 underneath and any information associated therewith remain clearly recognizable.
  • the structure of the structural elements 21 becomes visible as matted surface areas and shows the effect of an optical grating in the case of oblique light incidence, so that the spectral colors of the incident light become visible and an impression similar to that of a rainbow hologram is produced.
  • the structural elements 21, 22 can have dimensions of less than 100 micrometers (100 pm), in particular less than 10 micrometers (10 pm), for example less than 1 micrometer (1 pm). Structural elements 21 and 22 which are spatially assigned to one another have different forms of appearance. A
  • Structural element 21 differs, for example, from a structural element 22 spatially assigned to it in terms of its size and / or its shape and / or its color and / or its transparency and / or its material and / or its material structure.
  • the different layers 1 preferably differ in terms of their material. At least two layers 1 advantageously comprise laser-sensitive material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Optics & Photonics (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un élément de sécurité (11) destiné à être utilisé pour un document de sécurité (10). L'élément de sécurité (11) comprend au moins deux couches (1, 2) fixement reliées l'une à l'autre. Les au moins deux couches (1, 2) comprennent chacune un certain nombre d'éléments de structure (21, 22), un élément de structure (22) associé spatialement au premier élément de structure (21) étant prévu dans au moins une autre couche (1) pour au moins un premier élément de structure (21) d'une première couche (2), lequel élément de structure (22) présente une apparence différente de celle du premier élément de structure (21) de la première couche (2).
PCT/EP2019/079752 2018-11-06 2019-10-30 Élément de sécurité doté d'éléments de structure associés spatialement les uns aux autres en couches différentes WO2020094494A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19798042.8A EP3877194A1 (fr) 2018-11-06 2019-10-30 Élément de sécurité doté d'éléments de structure associés spatialement les uns aux autres en couches différentes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018127628.1A DE102018127628A1 (de) 2018-11-06 2018-11-06 Sicherheitselement mit einander räumlich zugeordneten Strukturelementen in verschiedenen Schichten
DE102018127628.1 2018-11-06

Publications (1)

Publication Number Publication Date
WO2020094494A1 true WO2020094494A1 (fr) 2020-05-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/079752 WO2020094494A1 (fr) 2018-11-06 2019-10-30 Élément de sécurité doté d'éléments de structure associés spatialement les uns aux autres en couches différentes

Country Status (3)

Country Link
EP (1) EP3877194A1 (fr)
DE (1) DE102018127628A1 (fr)
WO (1) WO2020094494A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022200099A1 (de) 2022-01-06 2023-07-06 Bundesdruckerei Gmbh Sicherheitsdokument mit Mikrogitterstruktur

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019869A1 (fr) 1996-11-05 1998-05-14 Industrial Automation Integrators (Iai) B.V. Dispositif de securite comportant un motif perfore
EP1719637A2 (fr) * 2005-05-06 2006-11-08 Canadian Bank Note Company, Ltd. Document de sécurité avec caractéristique d'authenticité UV
EP1970211A1 (fr) 2007-03-12 2008-09-17 Gemalto Oy Document d'identification sécurisée et son procédé de fabrication
DE102007042386A1 (de) 2007-09-04 2009-03-05 Bundesdruckerei Gmbh Verfahren und Vorrichtung zur individuellen farbigen holografischen Belichtung
DE102012007747A1 (de) * 2012-04-18 2013-10-24 Giesecke & Devrient Gmbh Optisch variables Sicherheitselement
DE102015212544A1 (de) * 2015-07-03 2017-01-05 Bundesdruckerei Gmbh Sicherheitsdokument und Verfahren zur Herstellung eines Sicherheitsdokumentes mit mikroperforierten opaken Materialschichten
EP2738624B1 (fr) 2007-10-31 2017-04-05 Bundesdruckerei GmbH Hologramme et document de sécurité avec échantillons de couleurs de différentes couleurs spectrales
WO2017109119A1 (fr) 2015-12-22 2017-06-29 Bundesdruckerei Gmbh Procédé d'intégration d'un hologramme dans un corps de document de sécurité et corps de document de sécurité

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108136809B (zh) * 2015-10-02 2020-01-07 凸版印刷株式会社 防伪结构体
JP6981404B2 (ja) * 2016-05-20 2021-12-15 凸版印刷株式会社 偽造防止構造体
DE102018106430B4 (de) * 2018-03-20 2021-08-12 Bundesdruckerei Gmbh Sicherheitselement mit Mikro- oder Nanostrukturierung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019869A1 (fr) 1996-11-05 1998-05-14 Industrial Automation Integrators (Iai) B.V. Dispositif de securite comportant un motif perfore
DE69723283T2 (de) 1996-11-05 2004-05-27 Industrial Automation Integrators (Iai) B.V. Ein lochmuster enthaltendes sicherheitsmerkmal
EP1719637A2 (fr) * 2005-05-06 2006-11-08 Canadian Bank Note Company, Ltd. Document de sécurité avec caractéristique d'authenticité UV
EP1970211A1 (fr) 2007-03-12 2008-09-17 Gemalto Oy Document d'identification sécurisée et son procédé de fabrication
DE102007042386A1 (de) 2007-09-04 2009-03-05 Bundesdruckerei Gmbh Verfahren und Vorrichtung zur individuellen farbigen holografischen Belichtung
EP2738624B1 (fr) 2007-10-31 2017-04-05 Bundesdruckerei GmbH Hologramme et document de sécurité avec échantillons de couleurs de différentes couleurs spectrales
DE102012007747A1 (de) * 2012-04-18 2013-10-24 Giesecke & Devrient Gmbh Optisch variables Sicherheitselement
DE102015212544A1 (de) * 2015-07-03 2017-01-05 Bundesdruckerei Gmbh Sicherheitsdokument und Verfahren zur Herstellung eines Sicherheitsdokumentes mit mikroperforierten opaken Materialschichten
WO2017109119A1 (fr) 2015-12-22 2017-06-29 Bundesdruckerei Gmbh Procédé d'intégration d'un hologramme dans un corps de document de sécurité et corps de document de sécurité

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DE102018127628A1 (de) 2020-05-07
EP3877194A1 (fr) 2021-09-15

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