WO2012084169A1 - 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
WO2012084169A1
WO2012084169A1 PCT/EP2011/006391 EP2011006391W WO2012084169A1 WO 2012084169 A1 WO2012084169 A1 WO 2012084169A1 EP 2011006391 W EP2011006391 W EP 2011006391W WO 2012084169 A1 WO2012084169 A1 WO 2012084169A1
Authority
WO
WIPO (PCT)
Prior art keywords
optically variable
variable element
element according
facets
optically
Prior art date
Application number
PCT/EP2011/006391
Other languages
German (de)
English (en)
Inventor
Peter Franz
Thanh-Hao Huynh
Christian Fuhse
Original Assignee
Giesecke & Devrient 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 Giesecke & Devrient Gmbh filed Critical Giesecke & Devrient Gmbh
Priority to AU2011348479A priority Critical patent/AU2011348479B2/en
Priority to EP11805417.0A priority patent/EP2655081B1/fr
Publication of WO2012084169A1 publication Critical patent/WO2012084169A1/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
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • 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
    • B42D25/355—Security threads
    • 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
    • B42D2035/20—
    • 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

Definitions

  • the invention relates to an optically variable element, in particular security element for a data carrier.
  • Data carriers such as valuables, identity documents, or valuables, such as branded articles, are often provided with a visually variable element for securing purposes, which verifies 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.
  • the object of the invention is to provide an optically variable element, in particular a security element for a data carrier, which combines high counterfeit security with good visibility and easier verification.
  • an optically variable element in particular a security element for a data carrier, having a substrate which comprises a reflective layer having a motif-forming surface structure with a first and a second partial area, wherein the two partial areas optically each as a forward and / or receding recognisably, the visually perceptible and the haptic detectable impression of the first portion match and the visually perceptible and the haptic detectable impression of the second portion do not match.
  • an optically variable element is provided 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.
  • 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 perceived visually with a curvature which deviates from the curvature or actual spatial form of the reflective layer in the area 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. Furthermore, one of the two partial areas can surround the other of the two partial areas.
  • the motif-forming surface structure can be characterized. This is for example advantageous in that such Optically variable element can be easily manufactured.
  • the embossing can be carried out by gravure printing (without color) and thus as so-called blind embossing.
  • the motif-forming surface structure in the second subregion can have a multiplicity of reflective facets which are oriented in such a way that optically a reflective surface is perceptible to a viewer, compared to the macroscopic spatial form of the reflective layer in the second subregion forwards and / or backwards.
  • a real curved reflective surface can be imitated with the second motif area.
  • the second subregion of the security element according to the invention can be designed such that it can be perceived as an imaginary surface for a viewer.
  • an imaginary surface can be perceived as a rotating mirror that rotates the visible mirror image, for example, by 90 °.
  • Such an imaginary surface and in particular such a rotating mirror is very easily detectable and verifiable for a viewer.
  • any real curved reflecting or transmitting surface can be modified into an imaginary surface by means of the second subregion of the security element according to the invention. This can be achieved, for example, by changing the azimuth angles of all facets, for example by turning them through a certain angle.
  • This can be interesting effects. If, for example, all azimuth angles are rotated by 45 ° to the right, then a surface area for a viewer, when illuminated directly from above, is a curved surface, which apparently lit 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, for example, makes it no longer possible for a viewer to decide whether the convex perceptible surface is present in front or in the back (relative to the surface area).
  • the reflective surface can also be perceived by a viewer as a non-planar surface.
  • the orientations of a plurality of facets can be changed relative to the orientations for producing the protruding and / or recessed reflecting surface such that the protruding and / or recessed reflecting surface is still perceptible, but with a matt finish appearing surface.
  • the orientations of a plurality of facets with respect to the orientations for producing the protruding and / or recessed reflecting surfaces can also be changed such that the protruding and / or recessed reflecting surface is still perceptible, but as a surface with a glittering effect ie as a glittering surface.
  • the procedure is as follows:
  • 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.
  • each with the same deviation so, for example, a matte appearing surface or
  • a glittering surface ie surface with glitter effect, can be generated.
  • Such security elements with a matt reflective surface or a glittering surface have 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 highest facets may have a minimum height of 10 pm.
  • the height of the highest facets is in the range from 10 ⁇ m to 300 ⁇ m, preferably from 15 ⁇ m to 200 ⁇ m, more preferably from 20 ⁇ m to 120 ⁇ m and particularly preferably from 25 ⁇ m to 110 ⁇ m.
  • the above specification of the highest facets takes into account the fact that the facets of the security element according to the invention generally vary within the second subarea.
  • essentially all facets have a minimum height of 10 ⁇ m and in particular the height of the facets in the range from 10 ⁇ m to 300 ⁇ m, preferably 15 ⁇ m to 200 pm, more preferably from 20 pm to 120 pm, and most preferably from 25 pm to 110 pm. All facets with the abovementioned (highest) heights greater than 10 ⁇ m can be manufactured precisely with the method according to the invention and therefore have a very high security against counterfeiting.
  • the facets may have a spatial frequency of 5 to 500 facets / cm, preferably 10 to 300 facets / cm and more preferably 20 to 150 Facets / cm be formed.
  • the lateral dimension of the facets may preferably be in the range of 10 ⁇ to 500 ⁇ , more preferably from 20 ⁇ to 180 ⁇ and in particular from 30 ⁇ to 150 ⁇ .
  • the embossing distance of the two subregions can be between 0 ⁇ and 500 ⁇ , preferably between 0 ⁇ ⁇ and 150 ⁇ and more preferably between 0 ⁇ and 50 ⁇ lie.
  • the spatial frequency of the facets and the height of the facets can be constant in the second subarea or even vary. Particular preference is given to facets which are arranged periodically or at least locally periodically with a constant period. Also, facets are particularly preferred, the height of which changes substantially continuously in the second subregion.
  • the dimensions of the facets are selected so that the optically detectable impression of the second portion does not match the tactile or tactile impression of the second portion.
  • the structure sizes of the motif-forming surface structure for the first subarea can essentially have the same individual dimensions as the facets.
  • the motif-forming surface structure in the first subarea may include substantially parallel line-shaped embossing elements.
  • the line density may be about 10 lines / cm to 1000 lines / cm, preferably 20 lines / cm to 300 lines / cm, and most preferably 40 lines / cm to 150 lines / cm.
  • the dimensions of the surface structure are chosen in any case so that the haptic impression with the optical overcomes. This can in particular via the aspect ratio (height of the corresponding embossing structure to the width of the embossed structure) can be adjusted. Aspect ratios in the range from about 1: 4 to about 4: 1 are particularly preferred.
  • the aspect ratio for the second subregion is preferably about 1: 4 to about 4: 1 and is chosen from the absolute values such that the optical impression does not match the haptic impression.
  • the maximum height of the surface structure in the first subregion is greater than the maximum height of the surface structure in the second subregion.
  • the maximum height in the first subarea can be at least 30 ⁇ m and preferably at least 50 ⁇ m.
  • the reflective layer may be formed as a metal layer.
  • a material for example, aluminum, silver, copper, chromium, iron and / or other metal or alloys thereof may be used.
  • the reflective layer may be provided as a metal foil deposited on the substrate.
  • the reflective layer may be formed as a single layer or even in multiple layers. Furthermore, it can have effect pigments.
  • it may contain another security feature, such as a machine readable feature. This may be e.g. to deal with aligned magnetic pigments.
  • the optically variable element may in particular be designed as a security thread, tear-open thread, security strip, security strip, patch or as a label for application to a security paper, document of value or the like. be formed.
  • the optically variable element can span transparent or at least translucent areas or recesses.
  • security paper is understood here in particular as the precursor that can not be processed to 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 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.
  • the optically variable element of the present invention can be easily produced in a large quantity.
  • the two subregions are embossed in a single embossing step, to which preferably only a single embossing mold is used.
  • a method for producing a data carrier with an optically variable element according to the invention is provided, in which the optically variable element is provided on and / or in the data carrier.
  • the reflective layer can be formed on the data carrier and then the motif-forming surface structure can be embossed into the reflective layer.
  • Both partial areas are preferably embossed in a single embossing step.
  • a single embossing mold can be used.
  • the embossing step is preferably a gravure printing without color and thus a so-called blind embossing.
  • the optically variable element can initially be partially manufactured by forming only one of the two subregions.
  • the partially manufactured optically variable element is connected to the data carrier and then formed the missing portion.
  • At least one of the two subregions can be formed by embossing (in particular blind embossing).
  • an embossing mold with an embossing surface with which the motif-forming surface structure of the optically variable element according to the invention (including its development) can be embossed can be embossed.
  • the embossing surface can be produced for example by material removal by means of laser radiation.
  • laser radiation preferably pulse-operated lasers are used, with picosecond lasers in particular being preferred.
  • a plastic material may be used as a material for the substrate of the security element and / or for the data carrier (such as a banknote).
  • a paper substrate is possible.
  • paper with synthetic fibers i. 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).
  • the optically variable element may be provided in, on or between each of the layers of such a multilayer composite.
  • the optically variable element can have all the features which are produced in the described production method for producing the optically variable element.
  • the method for producing the optically variable element can be developed so that all described examples and embodiments of the optically variable element can be produced. The same applies to the described data carrier and the description of the manufacturing method of such a data carrier.
  • the embossing mold according to the invention can be developed so that each optically variable element described here can be produced.
  • FIG. 1 shows a plan view of a banknote with an optically variable element 1 according to the invention
  • Fig. 2 is an enlarged sectional view of the optically variable element
  • FIG. 5 is a schematic plan view of a further embodiment of the optically variable element according to the invention.
  • FIG. 6A-6B is a schematic plan view of still another embodiment of the optically variable element according to the invention at two different viewing angles.
  • the optically variable element 1 according to the invention is applied to the front side of a banknote 2 shown in FIG. 1 and serves as a security element or security feature in order to be able to check the authenticity of the banknote 2.
  • the optically variable element or the security element 1 is formed as a reflective security element 1 with a rectangular outer contour and has a motif 3 with a first portion 4 and a second portion 5, which is surrounded by the first portion 4 here.
  • the first subregion 4 forms a circular edge for the second subregion 5.
  • the security element 1 comprises a substrate 6 with a reflective layer 7.
  • the upper side of the reflective layer 7 facing away from the substrate 6 is embossed and therefore has a surface structuring, which, however, is formed differently in the first and second partial regions 4, 5.
  • the surface structuring is formed as a survey 8, which has two flanks 9, 10 and a rounded tip 11 connecting them.
  • the height of the elevation is here dl, wherein the height dl and the lateral dimension (maximum distance of the two flanks 9, 10 in the sectional view of FIG. 2) of the survey 8 are selected so that the first portion 4 visually perceived as a raised ring and the haptically detectable impression agrees with it.
  • the embossing is designed such that a multiplicity of reflective facets 12 are provided, which for a viewer readjust a reflective surface 13 that is opposite to the actual macroscopic
  • the spatial form of the reflective layer 7 in the second subregion 5 appears arched.
  • the reflective surface 13 is a part of a sphere, as indicated in the sectional view in Fig. 2 by the dashed line by the reference numeral 13.
  • This optical effect is achieved by choosing the inclination of the facets 12 to reflect incident light at the facets 12 in the same direction that a domed surface 13 would reflect the light.
  • 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 unarmed eye.
  • the preferred embodiment shown in Fig. 2 has facets arranged periodically with a substantially constant period.
  • the facets of this embodiment also have a height that increases substantially continuously from a central region of the second partial region to an outer region of the second partial region, that is, toward the first partial region, and reaches the maximum height d 2 there.
  • the haptically detectable impression of the second subarea differs significantly from the visually perceptible impression.
  • a viewer expects a curved forward surface due to the visual impression.
  • touching the second portion 5 he will essentially feel or feel only a plane surface.
  • the optically variable element 1 according to the invention can be prepared as follows. First, a metal layer is formed by vapor deposition on the substrate 6, which may be formed as a plastic film, for example, as a reflective layer 7 (step from FIG. 3A to FIG. 3B).
  • the desired surface structure is embossed with a gravure plate 25 in the top of the reflective layer 7 and thus of course in the substrate 6, wherein the one pressure plate 25 in a single step both partial areas 4 and 5 of the motif 3 are embossed (step of Fig. 3C to Fig. 3D).
  • the structuring of the upper side of the reflective layer 7 to form the first and second subregions 4, 5 of the motif 3 can thus be produced by means of blind embossing in a single step. Therefore, the motif 3 may be e.g. easily manufactured under the machine and speed specifications of a typical securities printing company.
  • optically variable element 1 produced in this way can then be applied to the upper side of the banknote 2 in order to produce the banknote 2 according to FIG. 1.
  • the banknote 2 is the substrate for the reflective layer 7. Then, one can subject the already (partially) completed banknote 2 (with the reflective layer 7) to the gravure printing step according to FIGS. 3C and 3D to obtain the desired motif 3 permanently produced by embossing.
  • the optically variable element 1 is first produced, but this has only the first or second portion 4, 5.
  • This partially completed optically variable element 1 is then applied to the banknote 2 and then the missing portion 4 or 5 is formed in a separate gravure printing step.
  • the reflective layer 7 is formed as a metal layer, as the material, for example, aluminum, silver, copper, chromium, iron, and / or other metal or alloys thereof may be used.
  • the reflective layer may not only be formed as a single layer as described so far, it may also be multi-layered and / or have effect pigments.
  • the substrate may be single or multi-layered.
  • the reflective layer 7 can be realized by a printing method using e.g. a silver and / or gold color is applied to the substrate 6.
  • a printing method known printing methods can be used, such as e.g. Screen, offset or indirect printing. Flexographic printing processes are also possible.
  • the reflective layer 7 may be present as a foil, which is applied to the substrate 6.
  • iriodines trade name of pearlescent pigments from Merck
  • pearlescent inks so-called effect colors with effect pigments can be used. This may be e.g. to act on the basis of liquid crystalline polymers produced effect pigments, which are translucent per se. In this case, the effect pigments are arranged on a corresponding reflective layer on the substrate.
  • FIG. 4 shows a further embodiment of the optically variable element 1 according to the invention, in which the first portion represents six times the number 5 in optically raised as well as in this form.
  • the second portion 5 has optically three-dimensional appearing diamonds, which are not palpable in this three-dimensional form, but are only palpable as a flat surface.
  • FIG. 5 shows a further embodiment of the optically variable element 1 according to the invention, in which case the motif is intended to be a portrait, which is shown here greatly simplified.
  • the motif is intended to be a portrait, which is shown here greatly simplified.
  • individual parts may be formed as a first portion 4, e.g. the nose and the mouth.
  • the remaining parts of the portrait are then as a second subarea
  • FIG. 6 shows yet another embodiment of the optically variable element according to the invention.
  • the embodiment of FIG. 6 is yet another embodiment of the optically variable element according to the invention.
  • the second portion 5 of the portrait has additional information, in this case the number "50."
  • the number "50” may be e.g. to trade the value of the valuable object to be secured with the optically variable element.
  • any other information e.g. in the form of an alphanumeric character, a logo, a geometric shape, etc. conceivable.
  • the additional information is designated by the reference numeral 30 in FIGS. 6A and 6B.
  • the motif-forming surface structure of the optically variable element 1 according to the invention is advantageously obtained by embossing. Therefore, it is also preferable, with reference to FIGS. 6A and 6B, to generate the additional information 30 by embossing a reflective surface.
  • the additional information 30 may be formed by a plurality of facets and / or sawtooth structures having a constant orientation , When viewing the optically variable element 1 under a first viewing direction and with a defined illumination direction, which is generated, for example, by a light source, the additional information 30 appears to the viewer with a first brightness value.
  • the observer perceives the bright value "50" from the first viewing direction, and the remaining portions of the optically variable element of the present invention, particularly the first portion 4 and the second portion 5, become the viewer's first viewing direction also perceived with the first brightness values assigned to the respective areas.
  • the optically variable element 1 is tilted with respect to the observer in the fixed illumination direction, or if the observer changes his viewing direction with respect to the optically variable element 1, he will perceive a change in the brightness of the additional information 30.
  • the additional information recognizable for him is shown as a dark value number "50.”
  • the change in the brightness of the value number "50" when the viewing direction changes can be determined by the arrangement of the sawtooth structures with constant orientation, depending on a given illumination direction be determined. That is to say, the value "50" changes its brightness for the observer when the security element is tilted or when the viewing direction is changed for a given lighting direction the observer with respect to the security element in the manner provided.
  • the different brightness impressions for the viewer are achieved by shading effects, ie the light is partially shaded when tilting the optically variable security element or when changing the viewing direction by the sawtooth structures, so reflected from the viewer, so that this darker impression of brightness than without Shadowing perceives. It is understood that the other regions 4, 5 of the optically variable element can also be perceived by the viewer at different viewing angles according to FIGS. 6A and 6B with different first and second brightnesses.
  • the embossing structures of the optically variable security element, in particular in the second subarea 5, and in the region of the additional information 30 can also be selected such that the additional information appears approximately at the same brightness as the surrounding optically variable security element so that the additional information is essentially undetectable under these lighting and viewing conditions.
  • the image impression perceptible to the viewer then substantially corresponds to the image impression shown in FIG. 5, since the information 30 does not contrast with the rest of the security element.
  • the additional information can be perceived by the viewer with a given illumination direction usually by simply tilting the security element or changing the viewing direction with respect to the security element and thus represents an additional security feature, which is the security against forgery of the optically variable element 1 and also the visual appeal of the security element according to the invention for the viewer further increased.
  • the additional information may of course also have several parts, for example, in addition to the value "50” also another symbol, such as a EURO symbol For the area of the EURO symbol, saw tooth structures with a large number of saw teeth with an orientation that differs from the orientation of the sawtooth structures in the value range "50" would then be provided.
  • the additional information is formed from, for example, two areas that are arranged overlapping.
  • the sawtooth structure of the discussed example with the value "50” and the EURO symbol could be formed so that the value of the number "50" associated sawtooth structure and the EURO sign associated sawtooth structure are nested, which for example by a strip or pixel-like decomposition of the entire range of additional information and alternating arrangement of a strip / pixel with sawtooth structures of the value number "50” or the EURO symbol respectively, the strips or pixels associated with the value number "50” or the EURO symbol may have an extension, in particular strip width of eg 100 ⁇ .
  • the additional information can also be arranged several times, wherein the sawtooth gratings have saw teeth with fixed orientation within one arrangement and this orientation differs from the orientation of the other representations.
  • the security element is tilted with such multiply arranged, additional information, the observer experiences a so-called “kinematic effect", ie the observer can perceive in the abovementioned example with the value "50" an additional information item 30 that occurs during the Tilting over the optically variable element seems to move and thereby also changes its brightness (running effect).
  • the structure provided for the additional information with, for example, embossed sawtooth gratings or embossed facets can be effected either subsequently in an additional embossing step or in a particularly advantageous manner simultaneously with embossing of the first and second subregions of the optically variable element.
  • the intaglio plate 25 shown with reference to FIG. 3 would have corresponding engravings required to produce the sawtooth structures or facets.
  • the structures of the first subarea, the second subarea and the additional information would then simultaneously be introduced into the substrate of the security element.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L'invention concerne un élément optiquement variable, en particulier un élément de sécurité pour un support de données, comportant un substrat (6) qui comprend une couche réfléchissante (7) qui possède une structure superficielle formant un motif constitué d'une première zone partielle et d'une deuxième zone partielle (4, 5). Les deux zones partielles (4, 5) sont perçues optiquement comme formant une saillie et/ou un décrochement, l'impression perçue optiquement et l'impression perçue haptiquement coïncident dans la première zone partielle (4) et l'impression perçue optiquement et l'impression perçue haptiquement ne coïncident pas dans la deuxième zone partielle (5).
PCT/EP2011/006391 2010-12-20 2011-12-16 Élément optiquement variable, en particulier élément de sécurité pour un support de données WO2012084169A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2011348479A AU2011348479B2 (en) 2010-12-20 2011-12-16 Optically variable element, in particular a security element for a data storage medium
EP11805417.0A EP2655081B1 (fr) 2010-12-20 2011-12-16 Élément optiquement variable, en particulier élément de sécurité pour un support de données

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010055236A DE102010055236A1 (de) 2010-12-20 2010-12-20 Optisch variables Element, insbesondere Sicherheitselement für einen Datenträger
DE102010055236.4 2010-12-20

Publications (1)

Publication Number Publication Date
WO2012084169A1 true WO2012084169A1 (fr) 2012-06-28

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Application Number Title Priority Date Filing Date
PCT/EP2011/006391 WO2012084169A1 (fr) 2010-12-20 2011-12-16 Élément optiquement variable, en particulier élément de sécurité pour un support de données

Country Status (4)

Country Link
EP (1) EP2655081B1 (fr)
AU (1) AU2011348479B2 (fr)
DE (1) DE102010055236A1 (fr)
WO (1) WO2012084169A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
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DE102010055236A1 (de) 2012-06-21
EP2655081B1 (fr) 2015-02-25

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