EP2459387B1 - Element de securite pour un objet a proteger, ainsi qu'objet a proteger dote d'un tel element de securite - Google Patents

Element de securite pour un objet a proteger, ainsi qu'objet a proteger dote d'un tel element de securite Download PDF

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Publication number
EP2459387B1
EP2459387B1 EP10740567.2A EP10740567A EP2459387B1 EP 2459387 B1 EP2459387 B1 EP 2459387B1 EP 10740567 A EP10740567 A EP 10740567A EP 2459387 B1 EP2459387 B1 EP 2459387B1
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EP
European Patent Office
Prior art keywords
security element
micro
article
protected
security
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
EP10740567.2A
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German (de)
English (en)
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EP2459387A2 (fr
Inventor
Michael Rahm
Wittich Kaule
Manfred Heim
Andreas Rauch
Josef Schinabeck
André Gregarek
Angelika Hilgenrainer
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Giesecke and Devrient GmbH
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Giesecke and Devrient GmbH
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Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2459387A2 publication Critical patent/EP2459387A2/fr
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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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
    • 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
    • B42D25/355—Security threads
    • B42D2033/18—
    • B42D2035/20—
    • B42D2035/44—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24562—Interlaminar spaces

Definitions

  • the invention relates to a security element for an object to be protected, such as security papers, documents of value or the like, as well as an object to be protected with such a security element.
  • Items to be protected are often provided with a security element which allows verification of the authenticity of the item and / or as protection against unauthorized reproduction.
  • Items to be protected include, for example, security papers, identity and value documents (such as banknotes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, checks, tickets, credit cards, health cards, etc.) as well as product security elements, such as Example labels, seals and packaging.
  • identity and value documents such as banknotes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, checks, tickets, credit cards, health cards, etc.
  • product security elements such as Example labels, seals and packaging.
  • the security element is formed as a security thread for a banknote and has, for example, a plurality of microlenses for magnifying a security feature
  • the surface of the thread on the lens side can not be provided with adhesive, which causes the thread to sag the embedding in the paper of the banknote spanning paper webs are not connected to the thread and therefore an undesirable lifting (or looping) of these webs can occur from the security thread.
  • the result is a reduction in the circulation stability of the banknote.
  • an object of the invention to provide a security element for an object to be protected with which the initially mentioned difficulties can be solved. Furthermore, an object to be protected should be provided with such a security element.
  • the object is achieved by a security element for an object to be protected with an upper side and a lower side, one or more imaging optical assemblies, each of which images an associated object only enlarged in front of the top, wherein the one optical arrangement or at least one of the optical arrangements more area comprising reflective micro-imaging elements arranged in a first pattern and the associated object being designed as a microstructure object having a plurality of microstructures arranged in a microstructure pattern adapted to the first pattern so that the microstructure object is imaged in an enlarged manner above the upper side by means of the reflective micro-image shaping elements;
  • Security element has both on the top and on the bottom of an adhesive layer with which the security element can be embedded in the object to be protected so that both the top as a uch the bottom is glued to the object to be protected.
  • the backs of these reflective microimage elements and the microstructures spaced therefrom or the layer carrying them can be provided with the adhesive layers, so that the security element can be glued with its two sides, for example, into a banknote. This is the unwanted lifting of the webs between the windows, which are provided in the banknote in order to allow the magnifying image avoided.
  • microimage elements are designed as micro-hollow mirrors, which have a reduced focal length in comparison to refractive microlenses, so that the thickness of the security element (for example, the thread thickness) can be significantly reduced. Thicknesses of less than 30 ⁇ m can be achieved.
  • the microimage elements may be disposed on one side of a film and the microstructures on the other side of the film.
  • the film may in particular be formed as a transparent film, for example as a PET film. This makes possible a simple way of producing the security element while at the same time providing excellent adjustment of the reflective microimage elements to the microstructures.
  • the microimage elements lie in a first plane and the microstructures in a second plane parallel to the first plane.
  • the spacing of the two planes can correspond to the focal length of the microimage elements.
  • At least one of the adhesive layers or the adhesive layers can be formed as a heat sealing lacquer layer.
  • Both adhesive layers or, in particular, the adhesive layer on the upper side of the security element are transparent, transparent here preferably meaning a transmission of at least 10% and in particular of at least 50%.
  • the adhesive layer under the reflective microimage elements can also be made non-transparent, preferably white, in order to reduce a shine through of the thread through the back of the banknote (back side sheet).
  • the security element according to the invention is here preferably designed such that all optical arrangements of the security element can always map the object assigned to them only in front of the top.
  • microstructure methods may be used, such as embossing methods.
  • suitable structures in resist materials can be exposed, even finished, molded and used for the production of stamping tools using methods known from semiconductor production (photolithography, electron beam lithography, laser lithography, etc.).
  • semiconductor production photolithography, electron beam lithography, laser lithography, etc.
  • Particularly suitable for the production of large areas are the known processes for embossing in thermoplastic films or in films coated with radiation-curing paints.
  • the security element may in particular be designed as a security thread, tear-open thread, security strip, security strip, patch or as a label for embedding in the object to be protected.
  • the dimensions of the microimage elements are preferably selected to be below the resolution of the human eye.
  • the dimensions may be in a range from 3 ⁇ m to 80 ⁇ m, preferably from 3 ⁇ m to 50 ⁇ m and particularly preferably from 3 ⁇ m to 30 ⁇ m.
  • the first pattern and the microstructure pattern may be formed as a hexagonal grid or as a polygonal grid, such as a rectangular or parallelogram grid.
  • the security element in the article to be protected By bonding the security element in the article to be protected on both sides, a high durability can be ensured. For example, if the object to be protected is designed as a banknote and the security element as an embedded security thread, unwanted lifting of the webs between the windows can be avoided.
  • the one Optikanordung In the region of the window, the one Optikanordung, one of the optical assemblies or even more of the optical arrangements of the security element can be.
  • the window may be closed with a transparent cover. This leads to a further increase in the durability of the object to be protected.
  • the object to be protected is preferably substantially flat.
  • the object to be protected can be designed as security paper, value document or the like.
  • security paper is understood here in particular as the precursor that can not yet be processed to form a value document which, in addition to the security element according to the invention, may also have further authenticity features (such as, for example, luminescent substances provided in the volume).
  • Value documents are here understood, on the one hand, documents produced from security papers.
  • value documents can also be other documents or items which can be provided with the security feature according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and undesired copies are prevented at the same time.
  • the substrate of a security paper or value document is particularly preferably made of paper made of cotton fibers, as used for example for banknotes.
  • the substrate may also be made of paper of other natural fibers, also preferably of synthetic fibers, i. a mixture of natural and synthetic fibers or also preferably consist of at least one plastic film.
  • a two-sided coating or lamination of the substrate with at least one plastic film results in a security paper, as in DE 102 43 653 A9 is described.
  • the security element according to the invention is applied to the substrate before the double-sided coating or lamination is applied to the substrate.
  • the security element according to the invention is thus advantageously embedded in the security paper.
  • the security element 1 is designed as a security thread and thus integrated into an object 2 to be protected (here banknote 2) in such a way that the security thread in the spaced-apart window areas 3 is exposed or is not covered by the banknote, since in the window areas 3 recesses are formed in the top of the bill, so that a clear view is given to the security thread 1.
  • the security element 1 comprises a carrier 4, which has on its first side 5 microstructures 6 and on its opposite second side 7 a plurality of micro-cavity mirrors 8.
  • micro-hollow mirrors 8 are in a plane perpendicular to the plane of Fig. 2 in a grid with fixed geometry (here, for example, a hexagonal grid) and thus arranged flat in a first pattern.
  • microstructures 6 which form a microstructure object or image M are likewise in a plane perpendicular to the plane of the drawing Fig. 2 in a grid with a fixed geometry (here, for example, a hexagonal grid) and thus arranged flat in a microstructure pattern, wherein the microstructure pattern adapted to the first pattern and both patterns are aligned such that when viewing the security element through the window areas 3 (direction of the Arrow P1) the microstructures 6 together with the micro-hollow mirror 8 a modulo magnification arrangement form.
  • the basic principle of such a modulo magnification arrangement is for example in the WO 2009/000528 A1 described, wherein the microstructure object M of the present invention, the motif image according to the teaching of WO 2009/000528 A1 equivalent.
  • the microstructure object M is enlarged as a security feature (as a target image in the sense of FIG WO 2009/000528 A1 ) perceptible.
  • security feature as a target image in the sense of FIG WO 2009/000528 A1 .
  • the carrier 4 comprises a PET film 9 onto which a first layer 10 of radiation-curing lacquer (for example UV lacquer) having the microstructures 6 is applied.
  • the microstructures 6 can be produced in a known manner, for example by embossing in the UV varnish 10 and subsequent printing and stripping of paint.
  • certain color transfer processes or micro-gravure printing techniques can be used, which, for example, in the PCT / EP2008 / 010739 or WO 2008/000350 are described.
  • a second layer 11 of radiation-curing lacquer for example, UV lacquer
  • the negative mold of the micro-hollow mirror 8 is embossed.
  • the side of the second layer facing away from the PET film 9 is coated with a reflective coating 12 (for example a metallization).
  • the micro-hollow mirrors 8 are thus formed as rear surface mirrors.
  • a seal 12 in the form of a metallization has the advantage that it is electrically conductive and magnetizable.
  • a color can also be concealed with magnetic pigments which have a magnetization that is the same throughout or different in different subregions.
  • the security element according to the invention thus has the additional security features of electrical conductivity and magnetic coding.
  • the inside of the reflective coating 12 of each micro-hollow mirror 8 or the embossed shape for the micro-hollow mirror 8 here has the shape of a spherical cap with a radius of curvature of 38 microns and a height h1 of about 3.1 microns.
  • the maximum thickness of the second layer 11 here is about 5.1 microns, the PET film has a thickness of 12 microns and the height h2 of the first layer 10 is 2 microns ,
  • the micro-hollow mirrors 8 Since the radius of curvature of the micro-hollow mirror 8 is 38 ⁇ m, the micro-hollow mirrors 8 have a focal length of 19 ⁇ m. Due to the described construction, the microstructures 6 are spaced apart from the hollow micro-mirrors 8 by approximately 19 ⁇ m and thus lie in the same plane as the focal points of the micro-hollow mirrors 8, so that the desired magnification imaging of the microstructures 6 of the security feature is effected.
  • the side facing away from the micro-hollow mirrors 8 side of the first layer 10 is the top 13 of the security element 1, on which a first adhesive layer 14 is applied from heat sealing lacquer. Furthermore, the rear side of the micro-hollow mirrors 8 and thus the reflective coating 12 forms the underside 15 of the security element 1. On the underside 15, a second adhesive layer 16 (here again a heat sealing lacquer layer) is applied. Due to the use of hollow micro mirrors 8, it is thus possible in the case of the security element 1 according to the invention to form an adhesive layer 14, 16 both on the upper side 13 and on the lower side 15.
  • the second adhesive layer 16 serves to bond the security element 1 to a backsheet 17 of the banknote 2, as in FIG Fig. 2 is shown.
  • the first adhesive layer 14 serves to connect the security element 1 to a front side sheet 18 of the banknote 2, in which case in particular the webs 19 of the front side sheet 18 are glued to the security element 1 between the window regions 3, so that an undesired lifting of these webs 19 from the security element 1 can be prevented.
  • the security element 1 is inserted into the banknote 2 and an enlarged image of the security feature now takes place in front of the top side 13 or in front of the front side leaf 18.
  • the micro-hollow mirrors 8 with the associated microstructures 6, which lie in front of one of the window areas 3, can be referred to as optics order which image the microstructure object M (the object associated with the micro-hollow mirrors 8) in front of the upper side 13. It is therefore possible to designate the micro-hollow mirrors 8 and the microstructures 6 in front of each window area 3 as a separate optical arrangement, so that the security thread 1 has a plurality of optical arrangements. Of course, one can also view all micro-cavities 8 and all micro-structures 6 as belonging to a single optical arrangement. But it is also possible to provide per window area 3 multiple optics arrangements. It is essential here that all optical arrangements always represent the respective object only in front of the upper side 13.
  • the microstructures 6 on the one hand and the micro-hollow mirrors 8 on the other hand are embossed on two separate films (eg PET films) and provided with a metallization or with ink. These two foils are then made into a structure according to Fig. 2 put together so that instead of in Fig. 2 shown PET film 9 two laminated PET films are present. If the distance between the hollow micro-mirrors 8 and the microstructures 6 is changed by this construction, the curvature of the micro-hollow mirrors 8 would have to be adjusted so that the microstructures 6 in the assembled state are again in the focal points of the micro-hollow mirrors 8. Of course, the distance depends essentially on the thickness of the two PET films and the amount of adhesive necessary for laminating.
  • Fig. 3 an embodiment of the security element 1 according to the invention is shown in embedded in the banknote 2 state, which can be referred to as Kaschierdition.
  • the microstructures 6 and micro hollow mirror 8 are first manufactured separately.
  • the microstructures 6 are formed on a UV lacquer layer 20, which is applied to a first carrier foil 21.
  • the micro-hollow mirrors 8 are formed in a UV lacquer layer 22 (by embossing and metallizing), which is applied to a second carrier foil 23.
  • the two carrier films 21 and 23 are preferably PET films.
  • the microstructures 6 and micro-hollow mirrors 8 thus formed are laminated together, with the micro-hollow mirrors 8 and the microstructures 6 facing each other, as in FIG Fig. 3 is apparent. Between them is only the laminating adhesive 24th
  • a first adhesive layer 14 On the upper side 13 of the security element 1 thus formed is again a first adhesive layer 14 and on the underside 15 of the security element 1, a second adhesive layer 16 is formed with which the security element 1 with the front and back side sheet 18, 17 of the banknote 2 is glued.
  • Fig. 4 a further embodiment of the security element 1 according to the invention is shown in embedded in the banknote state, which can be prepared as follows.
  • a first UV lacquer layer 25 which is applied to a PET film 26
  • microstructures 6 are embossed and colored using a suitable method.
  • a second UV lacquer layer 27 is applied to the embossed UV lacquer layer 25 and in a second embossing the molds for the micro-hollow mirror 8 are generated, which are then formed by vapor deposition with a metal layer 12.
  • the second adhesive layer 16 is then applied to the hollow micro-mirrors 8 thus formed.
  • a protective lacquer layer not shown, can be formed on the hollow micro-mirrors 8, on which the second adhesive layer 16 is then applied.
  • the first adhesive layer 14 is applied on the upper side 13 (of the side facing away from the micro-hollow mirrors 8 side of the PET film 26). With the two adhesive layers 14 and 16, bonding or fastening of the security element 1 in the banknote 2 can be carried out.
  • the PET film 26 may be formed so that it is detachable from the UV lacquer layer 25. In this case, after dissolving the PET film 26, the second adhesive layer is applied directly to the UV lacquer layer 25.
  • Fig. 5 is a further embodiment of the erfindumgsdorfen security element 1, which is inserted into the banknote 2, shown.
  • the microstructures 6 and the micro-cavity mirrors 8 will be manufactured separately from each other.
  • the microstructures 6 are embossed in a UV lacquer layer 30, which is formed on a PET film 31, and then dyed.
  • the micro-hollow mirrors (or their negative mold) are embossed in a UV lacquer layer 32, which is applied to a PET film 33.
  • the embossed shapes for the micro-hollow mirror 8 are mirrored either now or after laminating.
  • the PET film 33 is then laminated together with the UV lacquer layer 30 (laminating adhesive 34), wherein the application amount of the laminating adhesive 34 is adjusted so that the moire or modulo-magnified images (in this case the microstructure object) can be seen sharply.
  • the first and second adhesive layer 14, 16 is formed to bond the security element 1 in the manner described with the front and back side sheet 18, 17 of the banknote 2.
  • the PET film 31 may in turn be detachably connected to the UV lacquer layer 30.
  • the first adhesive layer 14 is applied directly to the UV lacquer layer 30.
  • the security element 1 according to Fig. 5 can also be produced by the following steps.
  • the UV lacquer layer 30 is embossed and colored to produce the microstructures 6.
  • the PET film 33 is laminated to the UV lacquer layer 30.
  • the UV coating layer 32 is formed and formed in this UV coating layer 32, the micro-hollow mirror 8 by embossing and coating.
  • the PET film 31 during the embossing of the micro-hollow mirror 8 causes additional strength of the structure, which is of great importance in view of the effect of even small distortions on the visual appearance in moire or modulo magnification ,
  • the security element 1 can be designed, for example, as a security element 35 with a rectangular shape such that it lies in the window area 36 of the front side sheet 18 of the banknote 2.
  • the security element 35 is preferably larger than the window area 36, as in FIG Fig. 1 is indicated by the dashed outline, so that by means of the first adhesive layer 14, a bonding of the security element 35 with the front side sheet 18 is possible.
  • the window portion 38 when embedding the security element 36 in a smart card 37 (as an example of a value document), as in Fig. 6 is indicated, the window portion 38 have a transparent cover 39, with which the security element 35 is glued by means of the first adhesive layer. For a permanent embedding of the security element 35 is achieved.
  • the banknote may be formed, for example, as a film composite banknote, in which both the front and the rear side sheets 17, 18 are multilayered, wherein the outermost layer is transparent and in the underlying layer at the front side sheet 18, the window portions 3 are formed.
  • micro-cavity mirrors 8 have been described, respectively. It is understood that the micro-cavities are given as representative of reflective micro-imaging elements. In particular, it is possible to use diffractive elements as reflective imaging elements, provided they achieve the desired imaging properties (in the same or similar manner as the micro-hollow mirrors 8).
  • the microimage elements can be formed, in particular, by microvoided mirrors having a circular or polygonal limited base surface, or by elongate cylindrical microvoid mirrors whose lengthwise extension is more than 250 ⁇ m, preferably more than 300 ⁇ m, more preferably more than 500 ⁇ m and in particular more than 1 mm. Furthermore, mirrors, Fresnel mirrors, zone mirrors or other elements having a reflective effect are possible as microimage elements.
  • the micro-hollow mirrors 8 may have a spherical curvature or an aspheric curvature.
  • the mirror coating 12 of the micro-hollow mirrors 8 can be realized, for example, by means of an applied metal layer (vapor-deposited, for example). Typically, an aluminum layer with a thickness of eg 50 nm is applied. Of course, other metals such as silver, copper, chromium, iron, etc., or alloys thereof can be used. The combination of several metals on and / or side by side is also possible, for example, a partial vapor deposition with Cu and then a full-surface evaporation with aluminum. Also, as an alternative to the metal, high-index coatings can be applied, for example MgF 2 , ZnS or TiO 2 . When choosing a suitable thickness, the reflective effect can be additionally increased by interference effects.
  • the corresponding layer thickness is about 60 nm.
  • a thin-layer system from, for example, alternately high and low refractive layers can be applied so that the layer sequence acts as a reflector.
  • Such layer systems can be tailored for a particular wavelength.
  • the mirror coating 12 may be over the entire surface of the individual micro-hollow mirrors 8. However, it is also possible to carry out a coating only in regions or in a grid-shaped manner so that the micro-hollow mirrors 8 are semitransparent. Also, the thickness of the coating can be chosen so that instead of a complete mirroring is present semitransparent mirroring.
  • Semitransparent mirroring is understood to mean, in particular, such a mirroring, in which the transmission averaged over at least one micro-cavity is in the range from 10% to 90%.
  • the mirror coating may also be realized as a color-shifting coating, e.g. has a layer system of absorber, dielectric and reflector.
  • the color-shifting side of the layer system may be facing or away from the microstructures 6.
  • the color generated by the layer system can be adapted to the color of the microstructures 6.
  • color-shifting layer systems described can also be applied over the whole area or only in certain areas.
  • the security element 1 may also have other security features, such as holograms, clear text or other known security features, for example, on page 18 of the description WO 2009/000528 A1 are described.

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Claims (10)

  1. Elément de sécurité pour un objet (2, 37) à protéger, avec :
    - un côté supérieur (13) et un côté inférieur (15),
    - un ou plusieurs dispositifs optiques qui projettent chacun, de manière agrandie, un objet correspondant seulement devant le côté supérieur (13),
    - un des dispositifs optiques ou au moins un des dispositifs optiques comprenant plusieurs éléments de micro-projection (8) réflecteurs disposés sur une surface selon un premier motif et l'objet correspondant étant conçu comme un objet à microstructure avec plusieurs microstructures (6), qui sont disposées dans un motif de microstructure adapté au premier motif de façon à ce que, à l'aide des éléments de micro-projection (8), l'objet à microstructures est projeté de manière agrandie devant le côté supérieur (13),
    - et l'élément de sécurité (1) comprenant, aussi bien sur le côté supérieur (13) que sur le côté inférieur (15), une couche adhésive (14, 16), avec laquelle l'élément de sécurité (1) peut être intégré dans l'objet à protéger (2, 37) de façon à ce que le côté supérieur (13) ainsi que le côté inférieur (15) soit collés avec l'objet à protéger (2, 37).
  2. Elément de sécurité selon la revendication 1, dans lequel les éléments de micro-projection (8) sont conçus comme des micro-miroirs creux (8).
  3. Elément de sécurité selon la revendication 1 ou 2, dans lequel les éléments de micro-projection (8) se trouvent dans un premier plan et les microstructures (6) se trouvent dans un deuxième plan parallèle au premier plan.
  4. Elément de sécurité selon la revendication 3, dans lequel la distance entre les deux plans correspond à la distance focale des éléments de micro-projection (8).
  5. Elément de sécurité selon l'une des revendications précédentes, dans lequel les éléments de micro-projection (8) sont disposés sur un côté d'un film (9) et les microstructures (6) sur l'autre côté du film (9).
  6. Elément de sécurité selon l'une des revendications précédentes, dans lequel une des couches adhésives (14, 16) est conçus comme une couche à vernis scellable à chaud.
  7. Objet à protéger (2, 37) avec :
    - un côté avant (18) dans lequel une fenêtre (3 ; 36 ; 38) est réalisée,
    - un élément de sécurité (1 ; 35) selon l'une des revendications précédentes étant intégré dans l'objet (2 ; 37) de façon à ce qu'il soit disposé au moins au niveau de la fenêtre (3 ; 36 ; 38) et à ce que son côté supérieur (13) soit orienté vers la fenêtre (3 ; 37 ; 38), le côté supérieur (13) ainsi que le côté inférieur (15) de l'élément de sécurité (1 ; 35) étant collés à l'aides des couches adhésives (14 ; 16) avec l'objet (2 ; 37).
  8. Objet (2 ; 37) selon la revendication 7, dans lequel la fenêtre (38) est scellée avec une protection transparente (39).
  9. Objet (2 ; 37) selon la revendication 7 ou 8, l'objet (2 ; 37) étant de forme essentiellement plate.
  10. Objet (2 ; 37) selon l'une des revendications 7 à 9, dans lequel l'objet (2 ; 37) est conçu comme un papier de sécurité, un document de valeur ou autre.
EP10740567.2A 2009-07-30 2010-07-15 Element de securite pour un objet a proteger, ainsi qu'objet a proteger dote d'un tel element de securite Active EP2459387B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009035361A DE102009035361A1 (de) 2009-07-30 2009-07-30 Sicherheitselement für einen zu schützenden Gegenstand sowie zu schützender Gegenstand mit einem solchen Sicherheitselement
PCT/EP2010/060249 WO2011012460A2 (fr) 2009-07-30 2010-07-15 Élément de sécurité pour un objet à protéger, ainsi qu'objet à protéger doté d'un tel élément de sécurité

Publications (2)

Publication Number Publication Date
EP2459387A2 EP2459387A2 (fr) 2012-06-06
EP2459387B1 true EP2459387B1 (fr) 2014-01-01

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EP10740567.2A Active EP2459387B1 (fr) 2009-07-30 2010-07-15 Element de securite pour un objet a proteger, ainsi qu'objet a proteger dote d'un tel element de securite

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Country Link
US (1) US20120153607A1 (fr)
EP (1) EP2459387B1 (fr)
CN (1) CN102470686A (fr)
DE (1) DE102009035361A1 (fr)
RU (1) RU2546454C2 (fr)
WO (1) WO2011012460A2 (fr)

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Also Published As

Publication number Publication date
RU2012107222A (ru) 2013-09-10
WO2011012460A2 (fr) 2011-02-03
DE102009035361A1 (de) 2011-02-03
EP2459387A2 (fr) 2012-06-06
WO2011012460A3 (fr) 2011-06-23
US20120153607A1 (en) 2012-06-21
CN102470686A (zh) 2012-05-23
RU2546454C2 (ru) 2015-04-10

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