EP2731802B1 - Élément optiquement variable, en particulier élément de sécurité pour un support de données - Google Patents

Élément optiquement variable, en particulier élément de sécurité pour un support de données Download PDF

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Publication number
EP2731802B1
EP2731802B1 EP12735096.5A EP12735096A EP2731802B1 EP 2731802 B1 EP2731802 B1 EP 2731802B1 EP 12735096 A EP12735096 A EP 12735096A EP 2731802 B1 EP2731802 B1 EP 2731802B1
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EP
European Patent Office
Prior art keywords
variable element
partial region
optically variable
element according
optically
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
EP12735096.5A
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German (de)
English (en)
Other versions
EP2731802A1 (fr
Inventor
Christian Fuhse
Andreas Rauch
Michael Rahm
Peter Franz
Thanh-Hao Huynh
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 GmbH
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Publication of EP2731802A1 publication Critical patent/EP2731802A1/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
    • B42D25/20—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
    • B42D25/351—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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • 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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • 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
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F7/00—Designs imitating three-dimensional effects

Definitions

  • the invention relates to an optically variable element, in particular security element for a data carrier, with the features of the preamble of claim 1.
  • Data carriers such as value documents, identity documents, or valuables, such as branded articles, are often provided with a visually variable element for securing purposes, which permits verification of the authenticity of the data carrier and at the same time serves as protection against unauthorized reproduction.
  • the optically variable element has an optical effect which varies, for example, when the viewing direction changes, and which can not be copied with conventional copiers.
  • An optically variable element of the type mentioned is from the WO 2011/079347 A1 known.
  • the WO 2010/119248 A2 describes a security document having a photonic crystal in one area. Distanced from this area is a contact structure formed by intaglio printing, which can be brought into contact with the photonic crystal by folding the security document in order to bring about an optical effect in the photonic crystal.
  • the object of the invention is to develop an optically variable element, in particular a security element for a data carrier, of the type mentioned at the beginning in such a way that there is a high level of protection against forgery with good recognizability and easy verifiability.
  • optically variable element in particular security element for a data carrier of the type mentioned, in which the first portion is produced by intaglio printing and indeed by blind embossing and visually perceived as forward and / or spring back.
  • an optically variable element which is optically very attractive due to the optically protruding and / or recessed portions and in which, surprisingly, the haptically detectable impression coincides with the optically perceivable impression only for the first portion and not for the second portion.
  • This variation of the haptic perception of the motif-forming section produces a high recognition value and leads to an easy verifiability of the authenticity of the optically variable element.
  • a subregion which can be perceived visually as protruding and / or receding is understood in particular to mean that the corresponding subregion can be perceived as a continuously curved surface.
  • the partial area can be visually perceived with a curvature that deviates from the curvature or actual spatial shape of the reflective layer in the region of the corresponding partial area.
  • a correspondingly curved surface can be imitated by adjusting the corresponding reflection behavior.
  • the two partial regions can each be designed as a contiguous region. However, it is also possible for the subareas to have gaps or even to include non-contiguous sections. In particular, the two subareas may be interleaved with each other and / or with other security features.
  • one of the two partial areas can surround the other of the two partial areas.
  • the motif-forming section in the second partial area can have a multiplicity of facets, which thus orientate are that for a viewer optically a surface is perceptible, the front of the macroscopic spatial form of the motif-forming section in the second partial area and / or jumps back.
  • a real curved surface (reflective and / or transmissive) can be imitated with the second partial area.
  • imaging surface For example, such an imaginary surface can be perceived as a rotating mirror, the z. B. rotates 90 °.
  • Such an imaginary surface and in particular such a rotating mirror is very easily optically detectable and verifiable for a viewer.
  • any real arched reflecting and / or transmitting surface can be modified into an imaginary surface by means of the second subregion of the optically variable element according to the invention.
  • This can be z. B. be realized in that the azimuth angle of all facets are changed, for example, be rotated by a certain angle.
  • This can be interesting effects. If, for example, all azimuth angles are rotated by 45 ° to the right, a surface area for a viewer, when illuminated directly from above, is a curved surface which is apparently illuminated from the top right. Twisting all the azimuth angles by 90 °, the light reflections move when tilted in a direction that is perpendicular to the direction that a viewer would expect. This unnatural reflection behavior then makes it no longer possible for a viewer, for example, to decide whether the convex perceptible surface is present in front or in the back (relative to the substrate).
  • the orientations of a plurality of facets can be changed relative to the orientations for producing the perceptible and / or recessed perceivable surface such that the perceptible and / or recessed perceivable surface is still perceptible, but with a matt appearing surface , In the same way, a glittering effect can be generated.
  • the following procedure can be used to produce such a matt or glittering surface:
  • the change in the orientations of several facets is given by a random deviation from a predetermined desired orientation within certain limits.
  • several adjacent facets may differ by the same random deviation from the desired orientation.
  • a matt-appearing surface or else a glittering surface that is to say a dull surface.
  • An optically variable element with such a matt or glittering perceptible surface has a very high recognition value and thus a very high security against counterfeiting.
  • the facets may be formed as achromatic facets. This is understood in particular to mean that the reflection behavior of the facets is conditioned or at least dominated by radiation-optical effects.
  • the facets do not act or hardly act as a diffractive structure.
  • the maximum embossing depth of intaglio printing in the first subarea can be at least 20 ⁇ m, preferably at least 40 ⁇ m and particularly preferably at least 70 ⁇ m. Such an embossing depth is easy to capture haptically.
  • the maximum height difference of the relief structures in the second partial region may be less than 15 ⁇ m, preferably less than 10 ⁇ m and particularly preferably less than 5 ⁇ m. Such a maximum height difference is so small that it can not be detected haptically or hardly (and as a rule as unstructured roughness).
  • the second subarea can optically present a height difference, wherein the actual structure height in the second subarea is smaller by at least a factor 3, preferably by a factor of 5 and particularly preferably by a factor of 10, than it appears optically. This ensures that the visually perceptible and the haptic detectable impression of the second portion do not match.
  • the optically variable element can be designed so that the second portion acts haptically flat.
  • the first subarea can be formed by blind embossing on a metallic appearing, color-shifting and / or iridescent background.
  • the first partial region can be reflective.
  • the optically variable element can be designed so that the two subareas present the same relief representations, related motifs, a coherent motif and / or combined motifs. So z. B. the first portion of a tactile tactile arc and the second portion of a show vaulted, but tactile not felt violin. It is also possible that the two sections together a motif, such. As a violin, offer, in which case only the part of the subject from the first sub-area and haptic in accordance with the visually perceptible impression is detected.
  • the first portion may be at least partially embossed by intaglio over the second portion.
  • This z. B. a deliberate destruction (stamping loss) may be desired in the second portion, so that the first portion is optically in front of the second portion and not semi-translucent.
  • the second subregion may have microstructures which mimic the reflection and / or refraction behavior of a curved surface.
  • the microstructures may be at least one element of the following group: Fresnel structures, reflective sawtooth gratings or facets, diffractive elements for concavity imitation (for example animat), Moire magnifiers and modulo mappers, in particular with metallized microstructures.
  • animat is here understood in particular that a viewing angle-dependent appearance is present, resulting in a change in the viewing angle, a visible movement effect. Examples are eg in the WO 2007/107235 A1 described.
  • the microstructures can be embossed in an embossing lacquer.
  • a reflective or reflection-enhancing coating in particular a metallization, color-shifting coating (the perceptible color depends on the viewing angle), a high-index coating and / or a coating with a Have color that has reflective pigment platelets, so that the pigment platelets are aligned approximately parallel to the microscopic relief.
  • the second portion may be transparent. Furthermore, it may have a partially permeable coating (eg a screened or a very thin metallization) and / or have a color-tilting coating when viewed and / or viewed. It is also possible to provide a metallized motif next to demetallized areas.
  • a partially permeable coating eg a screened or a very thin metallization
  • a color-tilting coating when viewed and / or viewed. It is also possible to provide a metallized motif next to demetallized areas.
  • the optically variable element may in particular be designed as a security thread, tear-open thread, security tape, security strip, patch or as a label for application to a security paper, value document or the like.
  • the optically variable element can span transparent or at least translucent areas or recesses.
  • security paper is understood in particular the not yet workable precursor to a value document, in addition to the optically variable element according to the invention, for example, other authenticity features such.
  • B. provided in volume luminescent substances may have.
  • Value documents are here understood, on the one hand, documents produced from security paper.
  • value documents can also be other documents and articles which can be provided with the optically variable element according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and at the same time unwanted copying is prevented.
  • the volume may be a value, ID, security, or other valuable item.
  • a plastic material may be used as a material for the substrate of the optically variable element and / or for the data carrier (such as a banknote).
  • a paper substrate is possible.
  • So can paper with synthetic fibers d. H. Paper with a content x polymeric material in the range of 0 ⁇ x ⁇ 100 wt .-%, a plastic film, eg. As a film of polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polypropylene (PP) or polyamide (PA), or a multilayer composite, in particular a composite of several different films (composite composite) or a paper-film composite (foil / paper / foil or paper / foil / paper) can be used.
  • the optically variable element may be provided in, on or between each of the layers of such a multilayer composite.
  • FIG. 1 the optically variable element 1 according to the invention is shown in FIG Fig. 1 shown front of a banknote 2 applied and serves as a security element or security feature to verify the authenticity of the banknote 2 can.
  • the optically variable element or the security element 1 is designed as a reflective security element 1 with a rectangular outer contour and has a motif 3 (here letter combination AB) with a first portion 4 (A) and on the second portion 5 (B).
  • the security element 1 comprises a substrate 6 with a reflective layer 7 in the first subregion 4.
  • the upper side of the reflective layer 7 facing away from the substrate 6 is embossed by means of a gravure printing process and thus has a surface structuring.
  • the surface structuring in the first subregion 4 is chosen so that the letter A is visually perceptible as projecting relative to the substrate 6.
  • the height or embossing depth d1 and the lateral dimension of the elevation 8 are selected so that the haptic detectable impression coincides with the optical. Thus, when you sweep over the first portion 4 with his finger, you feel the raised letter A.
  • the maximum height d1 of the elevation 8 may be, for example, 80 ⁇ m, and the height profile may preferably be continuous. In this case, there is a particularly good tactility.
  • the layer 7 can not only be formed as a metallic layer, but as a metallic appearing layer which is applied by printing technology (eg by screen printing, flexographic printing, indirect high-pressure, offset printing or inkjet), so that after the intaglio printing the first subregion 4 is optically as a coin-like metallic appearing relief is perceptible.
  • printing technology eg by screen printing, flexographic printing, indirect high-pressure, offset printing or inkjet
  • an optically variable color may alternatively be used. It is also possible to combine different colors, so that e.g. the embossed first portion 4 appears multicolored.
  • a multiplicity of reflective facets 12 can be formed in a lacquer layer 11, which are arranged on the substrate 6.
  • the reflective facets 12 are arranged and oriented such that they adjust a reflective surface 13 for a viewer, which appears arched in relation to the actual macroscopic spatial form of the lacquer layer 11 or of the substrate 6.
  • the reflective surface 13 is the letter B, wherein the reflective surface 13 in the sectional view in Fig. 2 is indicated by a dashed line.
  • This optical effect of the adjustment of the reflective surface 13 is achieved in that the inclination of the facets 12 is selected depending on their lateral position so that incident light is reflected at the facets 12 in the same direction, in which a curved surface 13, the light would reflect.
  • the incident light beam 15 is reflected in the direction 16, which is parallel to the direction 16 ', which would correspond to the direction of reflection at the surface 13.
  • These directions 18 and 20 are parallel to the directions 18 'and 20', which would be the reflection directions when reflected at the surface 13.
  • the maximum height d2 and the maximum dimension of the facets 12 are preferably chosen such that an observer can not resolve the facets 12 with his unaided eye.
  • preferred embodiment has facets 12 arranged periodically with a substantially constant period. Also, the facets 12 of this embodiment have a height that varies laterally.
  • the reflection behavior indicates that the local surface normal points in the direction 21, which is clearly different from the macroscopic surface normal (arrow 22) of the lacquer layer 11.
  • a directed reflection at the facets 12 Vaulting imitates, resulting in only indirectly a depth impression or a 3D impression. Therefore, this impression can also be called "21 ⁇ 2" dimensional representation or relief-like representation.
  • the haptically detectable impression of the second portion 5 differs significantly from the visually perceptible impression. Thus, a viewer expects a curved forward surface due to the visual impression. When touching the second portion 5, however, he will essentially feel or feel only a plane surface.
  • the security element 1 according to the invention can advantageously be easily and clearly checked by the user without additional aids.
  • the maximum height d2 of the facets may be less than 15 ⁇ m. It is preferably smaller than 10 ⁇ m and in particular it is smaller than 5 ⁇ m.
  • the facets 12 can be exposed as an original in a photoresist by means of gray scale lithography known from the prior art, galvanically molded and then embossed, for example, into the radiation-curing and / or thermoplastic lacquer 11.
  • the lacquer 11 can for example be applied directly to the substrate 6 or be provided on a foil strip, in particular a laminate or transfer strip, and then transferred from the latter to the substrate.
  • these may be provided with a reflection-enhancing coating. They can be metallized, for example.
  • the coating on the facets 12 can also be color-shifting at least in regions, for example by applying suitable liquid crystals or vapor deposition with a reflector / dielectric / absorber thin-film system.
  • Fig. 3 the sectional view of an alternative embodiment is shown in which the facets 12 are at least partially made transparent and for example, are located in a window portion 25 of the substrate 6, wherein the substrate 6 may be the substrate of a banknote.
  • the facets 12 When viewed in phantom, the facets 12 cause incident light 15 to be refracted, for example, in the direction 16, into which an object curved according to the curve 26 would break incident light 15 'with the same refractive index.
  • the second portion 5 thus appears as a lens-like object having a surface relief according to curve 26.
  • the relief in the first portion 4 according to the invention is clearly tactile.
  • the lenticular-like relief turns out to be a thin film in which the visually visible curvature can not be felt.
  • reflective facets can also be used in the window region 25 as in the first embodiment.
  • the area around the facets 12 can be demetallized.
  • the facets 12 can also be provided with a semi-transparent coating (for example screened or a very thin metallization, in particular also a partially transparent, color-shifting coating).
  • a semi-transparent coating for example screened or a very thin metallization, in particular also a partially transparent, color-shifting coating.
  • any vault-imitating structures can be used in which the optically perceivable and haptically detectable impression do not coincide. So z. As Fresnel structures, diffractive structures and Moire Magnifier or modulo Mapper, especially with metallized microstructures used.
  • the corresponding structures can be embossed, but not by intaglio printing.
  • a lacquer 11 is embossed, which is radiation-curing or thermoplastic.
  • the paint 11 may be applied directly to the substrate 6. It is also possible that the paint 11 is applied to a film, which is then attached to the substrate 6. Alternatively, the lacquer 11 may be present on a transfer film, from which the structures are transferred to the substrate 6 in a known manner. Also, the substrate 6 can be embossed directly.
  • the microstructures of the second subregion 5 can be in a multilayer structure.
  • the microstructures can come to rest on the inside of an outer film and thus be better protected from external influences.
  • the microstructures forming the second subarea 5 can be formed between two outer foils of a polymer banknote or between paper and foil layer of a hybrid banknote.
  • the entire carrier core of the substrate 6 may contain the microstructures forming the second subregion 5, which are protected by a superposed foil.
  • the two subregions 4, 5 (here letters A and B) were spaced apart from one another.
  • Fig. 4 is a further example of the arrangement of the two sections 4, 5 shown.
  • the embossed relief of the first portion 4 (here in the form of the letter A) surrounded by a merely arched appearing second portion 5, which here has the shape of a domed ring with, for example, arched appearing letter B.
  • the actually arched motif A lies in front of a merely arched appearance Background with a plurality of letters B (second sub-area 5).
  • the motif B could be, for example, a seascape formed from microscopically small facets, and the motif A may be, for example, a ship embossed in intaglio over the second subarea (letter B). In this case, a deliberate destruction (stamping loss) may be present in the second subregion 5.
  • the ship can lie on the water and not appear semi-translucent.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)

Claims (18)

  1. Élément optiquement variable, en particulier élément de sécurité destiné à un support de données, comprenant
    un substrat (6) qui comporte une section formant motif ayant une première zone partielle (4) et une deuxième zone partielle (5) non fabriquée par impression en creux par gravure, cependant que la deuxième zone partielle (5) est optiquement discernable en tant que passant en avant et/ou revenant en arrière,
    la perception optiquement discernable et la perception haptiquement saisissable de la première zone partielle (4) correspondent entre elles, ainsi que
    la perception optiquement discernable et la perception haptiquement saisissable de la deuxième zone partielle (5) ne correspondent pas entre elles,
    caractérisé en ce que
    la première zone partielle (4) est fabriquée par impression en creux par gravure, à savoir par gaufrage à sec, et est optiquement discernable en tant que passant en avant et/ou revenant en arrière.
  2. Élément optiquement variable selon la revendication 1, dans lequel la section formant motif comporte dans la deuxième zone partielle (5) une pluralité de facettes (12) qui sont orientées de telle façon que, pour un observateur, optiquement, une superficie (13) est discernable, laquelle, par rapport à la forme spatiale macroscopique de la section formant motif (7), passe en avant et/ou revient en arrière dans la deuxième zone partielle.
  3. Élément optiquement variable selon la revendication 2, dans lequel les orientations de plusieurs facettes (12) sont modifiées telle façon par rapport aux orientations destinées à la génération de la superficie passant en avant et/ou revenant en arrière que la superficie passant en avant et/ou revenant en arrière est certes encore discernable, mais avec une surface apparaissant mate et/ou brillante.
  4. Élément optiquement variable selon la revendication 2 ou 3, dans lequel les facettes (12) sont orientées de telle façon que la deuxième zone partielle (5) montre un comportement de réflexion qui ne peut pas être généré avec une surface réfléchissante réelle macroscopiquement bombée.
  5. Élément optiquement variable selon une des revendications précédentes, dans lequel la deuxième zone partielle (5) est transmissive et/ou comporte un revêtement à effet de changement des couleurs par basculement.
  6. Élément optiquement variable selon une des revendications précédentes, dans lequel la profondeur maximale de gaufrage dans la première zone partielle s'élève à 20 µm, de préférence à au moins 40 µm, et particulièrement de préférence à au moins 70 µm.
  7. Élément optiquement variable selon une des revendications précédentes, dans lequel la différence maximale de hauteur de la structure en relief dans la deuxième zone partielle (5) est inférieure à 15 µm, de préférence inférieure à 10 µm, et particulièrement de préférence inférieure à 5 µm.
  8. Élément optiquement variable selon une des revendications précédentes, dans lequel la deuxième zone partielle présente des différences optiques de hauteur, la hauteur de la structure dans la deuxième zone partielle étant en réalité inférieure d'au moins un facteur 3, de préférence d'au moins un facteur 5, et particulièrement de préférence d'au moins un facteur 10 à celle qui apparaît optiquement.
  9. Élément optiquement variable selon une des revendications précédentes, dans lequel les différences de hauteur optiquement discernables des deux zones partielles (4, 5) sont égales.
  10. Élément optiquement variable selon une des revendications précédentes, dans lequel la deuxième zone partielle (5) fait haptiquement l'effet d'être plate.
  11. Élément optiquement variable selon une des revendications précédentes, dans lequel la première zone partielle (4) est fabriquée par le gaufrage à sec sur un fond apparaissant métallique, à effet de changement des couleurs par basculement et/ou irisé.
  12. Élément optiquement variable selon une des revendications précédentes, dans lequel la première zone partielle (4) est réfléchissante.
  13. Élément optiquement variable selon une des revendications précédentes, dans lequel les deux zones partielles (4, 5) présentent de mêmes représentations en relief, des motifs de sens similaire, un motif d'un seul tenant et/ou des motifs combinés.
  14. Élément optiquement variable selon une des revendications précédentes, dans lequel la première zone partielle (4) est gaufrée au moins partiellement par impression en creux par gravure par-dessus la deuxième zone partielle (5).
  15. Élément optiquement variable selon une des revendications précédentes, dans lequel la deuxième zone partielle (5) comporte des microstructures qui imitent le comportement de réflexion ou de réfraction d'un surface bombée, les microstructures consistant en particulier en au moins un élément du groupe suivant : structures de Fresnel, grilles en dents de scie ou facettes réfléchissantes, éléments diffractifs pour l'imitation de bombement, animat, grossissement par effet de moiré, modulo Mapper.
  16. Élément optiquement variable selon la revendication 15, dans lequel les microstructures sont métallisées.
  17. Support de données doté d'un élément optiquement variable selon une des revendications précédentes.
  18. Procédé de fabrication d'un élément optiquement variable selon une des revendications de 1 à 16 dans lequel la première zone partielle est fabriquée par impression en creux par gravure et la deuxième zone partielle est fabriquée sans impression en creux par gravure.
EP12735096.5A 2011-07-14 2012-07-10 Élément optiquement variable, en particulier élément de sécurité pour un support de données Active EP2731802B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011107154A DE102011107154A1 (de) 2011-07-14 2011-07-14 Optisch variables Element, insbesondere Sicherheitselement für einen Datenträger
PCT/EP2012/002901 WO2013007374A1 (fr) 2011-07-14 2012-07-10 Élément optiquement variable, en particulier élément de sécurité pour un support de données

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EP2731802A1 EP2731802A1 (fr) 2014-05-21
EP2731802B1 true EP2731802B1 (fr) 2017-02-08

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CN (1) CN103648791B (fr)
AU (1) AU2012283462B2 (fr)
DE (1) DE102011107154A1 (fr)
HK (1) HK1190991A1 (fr)
WO (1) WO2013007374A1 (fr)

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DE102013021358A1 (de) 2013-12-16 2015-06-18 Giesecke & Devrient Gmbh Sicherheitselement für Sicherheitspapiere
WO2016065331A2 (fr) 2014-10-24 2016-04-28 Wavefront Technology, Inc. Produits optiques, gabarits pour la fabrication de produits optiques, et procédés de fabrication de gabarits et de produits optiques
DE102015100280A1 (de) * 2015-01-09 2016-07-14 Ovd Kinegram Ag Verfahren zur Herstellung von Sicherheitselementen sowie Sicherheitselemente
WO2017011476A1 (fr) 2015-07-13 2017-01-19 Wavefront Technology, Inc. Produits optiques, gabarits pour la fabrication de produits optiques, et procédés de fabrication de gabarits et de produits optiques
CA3015684A1 (fr) 2016-04-22 2017-10-26 Wavefront Technology, Inc. Dispositifs de commutation optique
DE102017006507A1 (de) 2017-07-10 2019-01-10 Giesecke+Devrient Currency Technology Gmbh Strukturelement
CA3073365A1 (fr) 2017-10-20 2019-04-25 Wavefront Technology, Inc. Dispositifs commutateurs optiques
EP4249280A3 (fr) * 2019-01-07 2024-01-03 Toppan Printing Co., Ltd. Corps d'indicateur et matière imprimée étiqueté
AU2020257828A1 (en) 2019-04-19 2021-10-14 Wavefront Technology, Inc. Optical switch devices

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DE19845440A1 (de) * 1998-10-02 2000-04-06 Giesecke & Devrient Gmbh Stichtiefdruckverfahren zum vollflächigen Bedrucken großer Flächen
DE19963849A1 (de) * 1999-12-30 2001-07-12 Giesecke & Devrient Gmbh Datenträger mit gedrucktem Sicherheitselement
DE102005061749A1 (de) * 2005-12-21 2007-07-05 Giesecke & Devrient Gmbh Optisch variables Sicherheitselement und Verfahren zu seiner Herstellung
DE102006012732A1 (de) 2006-03-17 2007-09-20 Giesecke & Devrient Gmbh Gitterbild
GB0906367D0 (en) * 2009-04-14 2009-05-20 Rue De Int Ltd Security document
WO2011079347A1 (fr) * 2010-01-04 2011-07-07 Securency International Pty Ltd Dispositif optiquement variable

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Publication number Publication date
CN103648791B (zh) 2015-11-25
DE102011107154A1 (de) 2013-01-17
WO2013007374A1 (fr) 2013-01-17
HK1190991A1 (zh) 2014-07-18
EP2731802A1 (fr) 2014-05-21
AU2012283462B2 (en) 2016-01-28
CN103648791A (zh) 2014-03-19
AU2012283462A1 (en) 2014-02-06

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