WO2019219239A1 - Élément de sécurité à microréflecteurs - Google Patents

Élément de sécurité à microréflecteurs Download PDF

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Publication number
WO2019219239A1
WO2019219239A1 PCT/EP2019/000149 EP2019000149W WO2019219239A1 WO 2019219239 A1 WO2019219239 A1 WO 2019219239A1 EP 2019000149 W EP2019000149 W EP 2019000149W WO 2019219239 A1 WO2019219239 A1 WO 2019219239A1
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WO
WIPO (PCT)
Prior art keywords
motif
tilt angle
security element
angle range
main plane
Prior art date
Application number
PCT/EP2019/000149
Other languages
German (de)
English (en)
Inventor
Kai Hermann SCHERER
Maik Rudolf Johann SCHERER
Raphael DEHMEL
Original Assignee
Giesecke+Devrient Currency Technology 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=66655294&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2019219239(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giesecke+Devrient Currency Technology Gmbh filed Critical Giesecke+Devrient Currency Technology Gmbh
Priority to EP19726574.7A priority Critical patent/EP3793839B1/fr
Priority to CN201980017731.8A priority patent/CN111819085B/zh
Publication of WO2019219239A1 publication Critical patent/WO2019219239A1/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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs

Definitions

  • the invention relates to a planar security element with microreflectors for producing documents of value, such as banknotes, checks or the like, wherein the planar security element defines a main plane and the microreflectors are arranged in a microreflector pattern and in plan view of the planar security element when tilting about an axis. present a first and a second motif, wherein the first motif is perceptible only in a first tilt angle range and the second motif in a second tilt angle range.
  • the first and the second motif are different here, so that the tilting of the security element changes the view from the first motif to the second motif or from a domed first view to a curved second view.
  • the micro-reflectors are net angeord in a micro-reflector pattern, so that the planar security element in a plurality of pixels, each comprising at least one optically active facet, so at least one micro-reflector is divided.
  • the microreflector patterns of the two motifs are interleaved with simultaneous rescoring of the microreflector or micromirror alignments , In this way, a safety element can be produced which gives the impression that a static, three-dimensional motif changes abruptly.
  • the proposed embodiments may also be such that both representations are visible at the same time in a certain tilt angle range.
  • the flächi ge form of the security element defines a major level.
  • Floating motifs are also known from document WO 2012/048847 A1. Therein is described a display element which is designed and determined such that when illuminated, a light spot image is generated from a plurality of light spots which appear to be floating above or below the area area for an observer and which are arranged in the form of a predetermined motif. Each light spot of the light spot image is assigned at least one reflective optical element which, when illuminated, contributes to the generation of its associated light spot.
  • the motif can also be an alternating image that shows different images from different viewing directions.
  • the Mikroreflek gates are in particular designed so that their orientation along a direction changes continuously or gradually, so that a Be trachter sees when tilting the security element a bright light reflection that travels along the direction of change.
  • the motif thus has a movement effect when tilting the security element, which is related to the main plane.
  • Microreflector-based security features that show a tilt-angle-dependent change are difficult to replicate because traditional printing techniques tend to fail to make the change. At the same time, the change is recognizable to the normal viewer.
  • the microreflectors thus realize a security element that is concise.
  • the invention is therefore the object of developing a security feature with micro-reflectors of the type mentioned so that the apparent effect is particularly concise.
  • a planar security element For the production of value documents, such as banknotes, checks or the like, a planar security element is provided.
  • the safety element has micro-deflectors and defines a main plane due to its planar design.
  • the microreflectors are arranged in a microreflector pattern and present several motifs whose appearance depends on the tilting state or on a tilting movement of the security element about an axis lying in the main plane.
  • a first motif appears when the security element is tilted about the axis to lie within a first tilt angle range. If you tilt the security element out of the first tilt angle range, the first motif disappears.
  • a second subject appears, different from the first subject, showing a (non-stereographic) motivational movement effect in the main plane or parallel to it during tilting.
  • the motivational motion effect extends at least partially past the first location and / or toward the first location or away therefrom.
  • the second motif thus moves at least for a part of the second tilt angle range outside the first position.
  • the observer can be witness to the illusion that the second motif virtually wipes away the first motif.
  • This illusion is supported by the second motif in a second Tilting angle range is seen, which adjoins the first tilt angle range or overlaps at least partially with this.
  • the second motif appears as soon as one enters the second tilt angle range. As you continue tapping, this second subject performs the creative movement effect. Depending on the version, the first subject disappears before the second subject appears or during the motivational movement effect.
  • the motif movement effect includes with particular advantage a change in shape of the second motif, wherein the shape of the second motif in particular continuously or stepwise, preferably in three or more steps changes.
  • the motif movement effect of the second motif is at least partially orthoparallaktisch.
  • a third motif is provided. It can only be seen in a third tilt angle range and appears at a different position. It is referred to here as second place.
  • the first and third motifs are optional.
  • the second location is laterally offset to the first location, so differs from the first location.
  • the term "lateral" encompasses a horizontal, vertical or oblique offset.
  • the tilt angle ranges in which the first and third motifs appear are advantageously disjoint.
  • the first motif is only for the first tilt angle range and This is understood to mean that the respective motif is not completely perceptible (over all tilt angles): only in the first or in the third tilt angle range can the first or third motif be seen in its entirety, outside of it only in parts or not.
  • a flip effect appears, since when tilting the first motif disappears and then the third motif appears.
  • the second tilt angle range forms or comprises the section between the first and third tilt angle ranges, that is, is larger. In the section between the first and third tilt angles, neither the first subject nor the third subject is perceptible.
  • the microreflector pattern presents, in the second tilt angle range, the second motif, which is different from the other two.
  • the second motive shows the motive movement effect that is in the main plane or parallel to it. It preferably runs at least partially in an area lying between the first and second location.
  • the micro-reflectors are formed and arranged in the micro-reflector pattern so that a viewer sees the first motif when it tilts the planar security element about the axis in the first tilt angle range. If it then tilts through the second tilt angle range, the first motif disappears. Before or after, the second subject appears, showing the motivational movement that runs in the main plane. Subsequently, the third motif optionally appears at a laterally offset point. Thus, a wiping effect and optionally also a flip effect, which is superimposed or interposed during tilting, the motive movement effect of the second motif, is generated. Tilting or changing the direction of supervision with a fixed safety element is equivalent to tilting the security element in the fixed viewing direction.
  • tilt angle range covers both case designs in this respect, ie, refers both to a tilting of the direction of view with a fixed security element as well as to a tilting of the security element in the fixed viewing direction.
  • the security element combines an appearance and disappearance effect of the first and optionally third motive with a motive movement effect of the second motive.
  • This movement effect which can be, for example, a running or pumping effect, supports (visually) the change of the first and optionally third motif when tilting in the representation.
  • the observer it is possible for the observer to create the illusion that the motif movement effect of the second motif virtually wipes off the first motif.
  • the second tilt angle range is advantageously in an angular range of ⁇ 5 °, preferably ⁇ 10 °, more preferably ⁇ 20 ° to the perpendicular to the main plane.
  • the subject movement effect of the second subject occurs.
  • the subject movement effect of the second subject may also occur while the first and optionally third subject is visible in the first and optionally third tilt angle ranges.
  • the first tilt angle range includes a range of 5 ° to 20 ° (relative to the lowering rights on the main plane).
  • There the first motif is visible.
  • the second motif is a second tilt angle range from -20 ° to + 20 ° zugeord net, the optional third motif a third tilt angle range from -20 ° to -5 °.
  • a disjoint arrangement of the first and third motifs allows a better optical separation of these motifs.
  • the motivational movement effect of the second motif is optionally visible over the entire tilt angle range, in which the first and optionally the third motif can be seen.
  • the second tilt angle range is therefore not necessarily outside the first and optionally third tilt angle range.
  • the motif movement effect is thus not exclusively interposed between the visibility of the first motif and that of the optional third motif.
  • the first location and the second location are laterally offset from each other. This may be designed so that first and third motifs are locally offset from each other horizontally, vertically or obliquely (e.g., diagonally).
  • the disjoint formation of the first and third tilt angle ranges, together with the offset of the two motives, ensures that a particularly strong illusion of a wiping motion is generated.
  • the offset provides a particularly large area for microreflectors for the flip effect. In this way, surprisingly, a particularly high-contrast first or third motif can be generated.
  • the security feature is designed so that different motifs are combined.
  • the security element optionally has at least one first, second and possibly third microreflector subpattern, which differ in their structure of the microreflectors with respect to the generated motifs and are at least partially interleaved and respectively produce the presentation of one of the motifs.
  • the microreflectors are preferably arranged in sub-patterns, each sub-pattern exactly one of the motives causes. Accordingly, it is possible for the three motifs to arrange three microreflector partial patterns at least partially interlaced, so that microreflectors of the one partial pattern are adjacent to or surrounded by microreflectors of the other partial patterns. Checkerboard nesting, line-like nesting, or any microreflector pattern screwed into each other are equally possible.
  • the differences in particular of the first and third microreflector partial pattern relate to the formation of the individual pixels and their arrangement, which leads to the presentation of the respective motif. This difference does not necessarily require a different geometric division or distribution of the pixels within a microreflector subpattern.
  • the microreflector subpatterns may even be completely identical and offset only from one another, i.e. from one another. have the same basic structure in view of the distribution of pixels in plan view.
  • the Mikroreflek gates of the two microreflector sub-pattern geometrically designed differently.
  • microreflector partial patterns it is particularly preferred to nest three microreflector partial patterns in one another so that microreflectors of all partial patterns lie in individual surface areas.
  • a particularly simple generation of the microreflector sector subpatterns is possible by first calculating the associated microreflector subpatterns for the first and third motifs. Up to this point, it corresponds to a conventional change between two Moti ven, as it is known for example from the document WO 2014/060089 A2 or from the pending German patent application DE 102017004586.0. It is possible to nest these two microreflector subpatterns or to arrange them next to each other. In a next step, an interleaving with the microreflector partial pattern is then provided, which generates the second motif with the motif movement effect.
  • the second microreflector partial pattern preferably has a fraction of 30-70%, preferably between 40 and 60%, particularly preferably 50%, of the sum of the three microreflector partial patterns.
  • the micro-reflector pattern includes a plurality of micro-reflectors. These can, as in the prior art, for example, the
  • WO 2011/066990 A2 is known to be formed in the form of pixels.
  • a pixel is a small surface area in which at least one, preferably a plurality of microreflectors lie, which have a uniform geometry and represent a pixel of the presented object.
  • Their reflection properties for example geometry and / or coating, are designed such that they produce a pixel of the presented object.
  • microreflectors or micromirrors work in reflection, it is not absolutely necessary to arrange them side by side in the manner of a standard printed image in accordance with the pixels to be represented. Rather, the microreflectors present an image by reflection of incident illumination radiation and, therefore, for a given viewing distance range, they can also lie in a spatial arrangement on a substrate, which is detached from the spatial position of the pixels of the object presented. In this description, therefore, it is quite deliberately not talked about "presentation of an image", but about the presentation. chen. This is intended to express the projection properties that the micro-reflectors use in imaging.
  • the microreflectors may have dimensions between 2 mih and 300 gm, preferably between 3 gm and 100 gm and more preferably between 6 gm and 20 gm.
  • microreflector background pattern whose microreflectors are preferably inclined to the principal plane so as to appear dark within the tilting plies in which the flip motive effects are presented, thus forming an object background.
  • the microreflectors can be provided with a reflective or at least reflection-enhancing coating.
  • a metallic or high-refractive coating may be provided.
  • a color-tilting coating can be formed on the microreflectors.
  • the color-shifting coating can be designed in particular as a thin-layer system or thin-film interference coating.
  • a value document for example a banknote, an identity document, a check, an electronically readable card, etc.
  • a security element of the type mentioned.
  • a planar substrate which defines a main plane on account of this shape, is provided with microreflectors which have the properties which were explained above with reference to the security element.
  • the step of coating the microreflectors may also be provided.
  • the microreflectors can be provided with a reflective or at least reflection-enhancing coating.
  • microstructuring methods may be used, e.g. Embossing process.
  • suitable structures in resist materials can also be exposed, possibly refined, shaped and used for the production of embossing tools with methods known from semiconductor production (photolithography, electron beam lithography, laser beam lithography, etc.).
  • Known processes for embossing in thermoplastic films or in films coated with radiation-curing paints can be used.
  • the substrate can have a plurality of layers, which are applied successively and optionally structured and / or can be composed of several parts.
  • FIG. 1 is a plan view of a banknote with a security element
  • Fig. 2 is a schematic representation of the structure of thewhoselemen TES of FIG. 1,
  • 3A and 3B are schematic representations of motifs which the
  • Security element of FIG. 2 in various embodiments presented to a viewer in plan view and the tilting of the
  • FIGS. 3A to 7B representations of embodiments of the security element for clarification of tilt angle ranges and 8 shows a further embodiment of the security element with the properties according to FIGS. 3A to 7B.
  • FIG. 1 schematically shows a banknote B with a security element S.
  • the banknote B is printed on a banknote paper
  • the security element S is configured as a film element which has been applied to the banknote paper. Due to the planar configuration of the security element S and the banknote B, the security element S defines a level of the catchment H, which coincides in FIG. 1 with the plane of the drawing.
  • the security element S has a multiplicity of microreflectors, which present the viewer in plan view motifs 7, 8, 9, depending on the viewing direction or tilting of the security element S.
  • FIG. 3A shows schematically a top view of the security element S.
  • FIGS Motifs 7, 8, 9 drawn by dashed lines, since their appearance depends on the consideration in a tipping angle range.
  • the motifs 7, 8, 9 never appear all at the same time, but during the tilting, as will be explained below with reference to FIGS. 4A to 7B.
  • the motif 7 is, for example, a star that appears at a location 10.
  • the motif 8 in the exemplary embodiment is a ring which appears at a point 10 offset laterally to the point 10. The point indicates the surface area covered by the respective motif in plan view.
  • the example 9 is, for example, an elongated strip which moves during tilting in a direction of a double arrow, which is also entered in FIG. Which of the motives 7, 8, 9 is presented or which state of the motion effect for the motif 9 is present, the observer can adjust by tilting the security element S about an axis Al, which is arranged in the main plane H.
  • Fig. 3B shows a modification in which the motif 8 is omitted. Otherwise, the security element S corresponds to that of FIG. 3A.
  • the security element S has three microreflector patterns 1, 2, 3 which, in the embodiment of FIG. 2, are nested in one another like a checkerboard pattern, so that horizontally as horizontally microreflector pixels 4 of the first micro-reflector pattern 1 alternate with microreflector pixels 5 of the second microreflector pattern 2 and microreflector pixels 6 of the third microreflector pattern 3.
  • a fourth microreflector pattern which is preferably also arranged in a nested manner (and not shown), is provided. Its micro-reflector pixels, as will be explained, are provided for generating a background and arranged to be dark in a viewing angle range in which one, two or three of the micro-reflector patterns 1-3 have a motif.
  • the third microreflector pattern 3 is dispensed with. Only the first microreflector pattern 1 and the second microreflector pattern 2 and optionally the background microreflector pattern are then provided.
  • FIGS. 4A and 4B show a tilting of the security element S with the lower edge of FIG. 3A upwards and the upper edge downwards. In this case, a tilting angle range W1 which is still to be explained is achieved. In this tilting angle range W1, only the motif 7 can be seen in the embodiment of FIG. 4A. In the embodiment of FIG. 4B, in addition, the motif 9 can also be seen.
  • the motif 9 can be recognized when the security element is located in a tilt angle range W2 that does not include the first tilt angle range W1 (FIG. 4A) or completely or partially (FIG. 4B).
  • FIGS. 5A and 5B show opposing tilting in the same amount in a third tilt angle range W3. It leads in Fig. 5A to the fact that only the subject 8 appears.
  • the motif 9 also appears in the third tilt angle E3 W3. It has moved during the tilting to the point 10 and beyond, so that the illusion of a Wegwischens the subject 7 arises.
  • the embodiments of FIGS. 5A and 5B again differ in whether the second tilt angle range W2, in which the motif 9 shows the motif movement effect, comprises the tilt angle range W3 for the motif 8 (FIG. 5B) or not (FIG. 5A ).
  • the motif 9 appears in at least one state between the tilt angle ranges W1 and W3 and shows the motif movement effect.
  • the embodiment according to FIG. 4A can also be combined with the embodiment according to FIG. 5B. The same applies to the embodiments according to FIGS. 5A and 4B.
  • the motif 9 appears. It moves with the tilting process in the main plane H, for example away from the point 10 of the first motif 7 and to the point 11 of the third motif 8 out.
  • FIGS. 7 and 7B show the position of the tilt angle ranges W1, W2, W3 for the motives 7, 9, 8.
  • the tilt angle ranges W1, W2, W3 are each areas of a tilted position about the axis A1 and define the viewing angle ranges in which respective motif is presented.
  • the representation of FIG. 7A corresponds to a realization of a combination of FIGS. 4A and 5A
  • the representation according to FIG. 7B corresponds to a realization which combines the properties according to FIGS. 4B and 5B.
  • the tilt angle range Wl applies to the motif 7, which then shows itself with the appropriate tilt about the axis Al. It is defined by a minimum tilt angle bl -min and a maximum tilt angle bl-max. These two angles are of course measured to an axis that is perpendicular to the axis Al. If a tilting movement about the axis A1 takes place within the tilt angle range W1, the first motif 7 produced by the first microreflector or micromirror pattern 1 is shown. The same applies to the same tilt direction about the axis Al, when at the same time the tilt angle is within the corresponding angle (180 ° -b3-min) and (180 ° -b3-max), which define the second tilt angle range W3.
  • the two tilt angle ranges W1 and W3 are disjoint, with the result that the subject 7 and the subject 8 never appear simultaneously. It occurs the already mentioned flip effect. Between the Kippwinkel Kir W1 and the Kippwinkel Anlagen W3 is the Kippwinkel Colour W2, in which the motive movement effect of the subject 9 occurs and this motif 9 is visible.
  • the tilt angle range W2 directly adjoins the tilt angle ranges W1 and W3.
  • the tilt angle range W2 overlaps with both the tilt angle range W1 and the tilt angle range W3. The overlap can be complete or partial. An overlap with only one of the tilt angle ranges W1 or W3 is also possible. This would correspond to a combination example as shown in FIG.
  • the presentation of the motifs 7, 8 and 9 and the motif movement effect of the motif 9 are achieved in that the microreflectors 4, 5 and 6 in the associated microreflector patterns 1, 2 and 3 are individually correspondingly inclined.
  • microreflectors first become a separate one separately for the three motifs 7, 8, 9 and the movement effect of the motif 9 Reflector design calculated.
  • the corresponding individual pixels are then shifted into the corresponding mirror slope range, so that the tilt angle ranges W1, W2 and W3 are predetermined.
  • the pixels are nested together correspondingly, for example chess board-like, as shown in Fig. 2.
  • the pixel size typically corresponds to 10 to 20 pm.
  • the microreflector patterns 1 and 3 are calculated. These can be arranged nested inside each other or laterally adjacent to each other. Subsequently, this combination of microreflector patterns 1 and 3 is interleaved with a micro-reflector pattern 2, which generates the motif 9 and its motive movement effect.
  • This procedure is expedient in particular for the embodiments according to FIGS. 4B, 5B, 7B, since there the motive movement effect of the motif 9 extends over the points 10 and 11 at which the motives 7 and 8 appear.
  • the interleaving of the microreflector pattern 1, 3 makes it possible to run the wiping effect also via these named points 10 and 11, so that it appears particularly concise.
  • All reflector elements that are not used in the reflector designs are optionally equipped with a very steep slope against the main plane H, so that they appear dark in the respective tilt angle ranges.
  • This creates the fourth microreflector pattern for the background. It contains corresponding microreflectors.
  • Fig. 8 shows a further embodiment, which gives a particularly significant effect.
  • the points 10 and 11 are alternately reversed with the associated motifs.
  • all the motifs 7 appear first, which are then arranged in a zig-zag-like pattern.
  • the wiping movement of the motif 9 appears in the direction of the arrow.
  • This swipe moves in rows one and three from right to left, in rows two and four from left to right. It therefore runs away from the disappearing motive 7, 8 and towards the appearing motif 7, 8, which then becomes visible when the tilting has progressed into the tilt angle range W3.
  • the wiping effect is enhanced if the motive movement effect at least partially guides the motif 9 over the point at which the motif 7, 8 disappears during tilting.
  • the microreflectors of the motifs 7 and 8 can be realized here in particular as described in the publication WO 2016/1802522 A1.
  • the motifs 7 and 8 alternately visible from top to bottom, are shifted upwards in perspective or above the main plane H (cross-hatching for the motif 8 or diagonal-hatching for the motif 7 of FIG lower left to upper right) or downwards relative to the main plane H down or below the main plane H floating (vertical hatching for the motif 8 or diagonal hatching for the motif 7 from top left to bottom right).
  • the motifs 7 and 8 thus change not only by a flip effect, they also change their position relative to the main plane.
  • a motif that previously appeared in perspective below the main plane H changes in flip effect with another motif elsewhere, which appears raised against the main plane H.
  • microreflectors of the motif 7 and / or the motif 8 can be realized as in the document WO 2014/060089 A2.
  • the flip effect does not have to be a change of different motives. Rather, it is also a simple change of location one and the same motif, such as a star or ring, between the points 10 and 11 possible.
  • All embodiments of the security element can be realized as foil elements, as foil elements on window recesses or as security threads. They can be mounted on paper or polymer banknotes on both the front and the back. The same applies to security documents, identity papers etc.

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  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention concerne un élément de sécurité plat pourvu de microréflecteurs pour la fabrication de documents de valeur, comme des billets de banque (B), des chèques ou similaires, l'élément de sécurité (S) plat définissant un plan principal (H) et les microréflecteurs (4, 5, 6) étant agencés selon un modèle (1, 2, 3) de microréflecteurs et présentant un premier et un troisième motif (7, 8) en vue de dessus sur l'élément de sécurité plat lorsqu'on l'incline autour d'un axe (Al), le premier motif (7) ne pouvant être mis en évidence que dans une première plage angulaire (Wl) d'inclinaison et le troisième motif (8) ne pouvant être mis en évidence que dans une troisième plage angulaire (W3) d'inclinaison, le premier motif (7) apparaissant à une première position (10) qui est décalée latéralement par rapport à une deuxième position (11) à laquelle apparaît le troisième motif (8), les plages angulaires (Wl, W3) d'inclinaison étant disjointes, si bien qu'au moins une partie d'une deuxième plage angulaire (W2) d'inclinaison, dans laquelle ni le premier motif (7) ni le troisième motif (8) ne peuvent être mis en évidence, se situe entre elles, et le modèle (1, 2, 3) de microréflecteurs présentant un deuxième motif (9) dans la deuxième plage angulaire (W2) d'inclinaison qui affiche un effet de déplacement de motif qui s'étend dans le plan principal (H) ou parallèlement à lui durant un mouvement d'inclinaison qui passe par la deuxième plage angulaire (W2) d'inclinaison.
PCT/EP2019/000149 2018-05-18 2019-05-16 Élément de sécurité à microréflecteurs WO2019219239A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19726574.7A EP3793839B1 (fr) 2018-05-18 2019-05-16 Élément de sécurité à microréflecteurs
CN201980017731.8A CN111819085B (zh) 2018-05-18 2019-05-16 具有微型反射器的安全元件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018004062.4A DE102018004062A1 (de) 2018-05-18 2018-05-18 Sicherheitselement mit Mikroreflektoren
DE102018004062.4 2018-05-18

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WO2019219239A1 true WO2019219239A1 (fr) 2019-11-21

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EP (1) EP3793839B1 (fr)
CN (1) CN111819085B (fr)
DE (1) DE102018004062A1 (fr)
WO (1) WO2019219239A1 (fr)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2021136587A1 (fr) 2020-01-03 2021-07-08 Giesecke+Devrient Currency Technology Gmbh Élément de sécurité optiquement variable
WO2021136586A1 (fr) 2020-01-03 2021-07-08 Giesecke+Devrient Currency Technology Gmbh Élément de sécurité optiquement variable
DE102020004423A1 (de) 2020-07-22 2022-01-27 Giesecke+Devrient Currency Technology Gmbh Sicherheitsmerkmal mit kippungsabhängiger Motivdarstellung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019008250A1 (de) * 2019-11-27 2021-05-27 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit kippungsabhängiger Motivdarstellung

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CN111819085B (zh) 2022-04-26
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DE102018004062A1 (de) 2019-11-21

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