EP3606765B1 - Sicherheitselement mit reliefstruktur und herstellungsverfahren hierfür - Google Patents

Sicherheitselement mit reliefstruktur und herstellungsverfahren hierfür Download PDF

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Publication number
EP3606765B1
EP3606765B1 EP18713788.0A EP18713788A EP3606765B1 EP 3606765 B1 EP3606765 B1 EP 3606765B1 EP 18713788 A EP18713788 A EP 18713788A EP 3606765 B1 EP3606765 B1 EP 3606765B1
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EP
European Patent Office
Prior art keywords
outline
security element
motif
relief structure
background
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
EP18713788.0A
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German (de)
English (en)
French (fr)
Other versions
EP3606765A1 (de
Inventor
Hans Lochbihler
Christian Fuhse
Thomas Gerhardt
Maik Rudolf Johann Scherer
Falk Amthor
Michael Rahm
Matthias Pfeiffer
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
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Giesecke and Devrient Currency Technology GmbH
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Filing date
Publication date
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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
    • B42D25/23—Identity cards
    • 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
    • B42D25/24—Passports
    • 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
    • B42D25/324—Reliefs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—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
    • B42D25/40—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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers

Definitions

  • the invention relates to a security element for the production of documents of value, such as banknotes, checks or the like, which shows a motif against a background, the security element having a relief structure that covers a motif area of the security element and provides the motif there and a background area of the security element covered and provides the background there.
  • the invention further relates to a document of value with a security element.
  • the invention also relates to a production method for a security element for the production of documents of value, such as banknotes, checks or the like, which shows a motif against a background, with a relief structure being produced that covers a motif area of the security element and provides the motif there and covers a background area of the security element and provides the background there.
  • Security features for banknotes contain motifs, such as symbols, images or real-color images, which are intended to be particularly easy to identify and counterfeit-proof.
  • Such motifs are known, for example, from the following publications: H. Lochbihler, "Colored images generated by metallic sub-wavelength gratings", Opt. Express, Vol. 17, pp. 12189-12196, 2009 ; WO 2012/156049 A1 ; EP 1434695 B1 ; EP 2453269 A1 ; WO 2013/091858 A9 ; US9188716B2 , DE 102014011425 A1 , DE 10 2008 046 128 A1 , WO 2011/029602 A1 and WO 97/19820 .
  • the invention is therefore based on the object of improving a security element, a document of value and a production method of the type mentioned at the outset in such a way that the detectability is increased. At the same time, simple production should be possible.
  • the security element for the production of documents of value which shows a motif against a background, has a relief structure that covers a motif area of the security element and provides the motif there and covers a background area of the security element and provides the background there;
  • an outline is provided which delimits the motif area from the background area and which is also formed by the relief structure, with the relief structure of the outline differing from the relief structure of the motif area and that of the background area, so that there is a brightness and/or color contrast between the outline on the one hand and subject area and background area on the other hand.
  • a relief structure is produced which covers a motif area of the security element and provides the motif there and covers a background area of the security element and there the Background provides, and provided an outline that delimits the subject area against the background area and also through the Relief structure is formed, the relief structure of the outline differing from the relief structure of the motif area and that of the background area, so that there is a brightness and/or color contrast between the outline on the one hand and the motif area and background area on the other.
  • the invention is based on the finding that the motif is easier to recognize when it is delimited from the background by a high-contrast outline.
  • the outline is also defined by the relief structure, which, however, differs in the outline area from the motif area and the background area, so that there is a brightness and/or color contrast between the outline area on the one hand and the motif area and the background area on the other hand.
  • This procedure circumvents registration requirements that would arise, for example, when conventionally printing an outline with a high-contrast color.
  • the outline can be designed in such a way that the maximum contrast to the subject and the background is achieved, i.e. a light outline is also easily possible. The invention thus significantly increases the perceptibility of the motif for a viewer.
  • the contrast between the outline area and the motif area as well as the background area can be achieved, for example, by appropriate selection of the profile geometry of the relief structure.
  • the relief structures are usually coated, for example metallically, with a high refractive index or with a layered composite that produces a color effect, such as is shown, for example, in WO 2008/080499 A1 is known.
  • Various relief structures are known from the prior art for generating motifs, ie it is possible to use these relief structures a contrast between the subject area on the one hand and the background area on the other hand can be achieved.
  • relief structures with micromirrors are known from the prior art (cf. DE 102010049617 A1 ).
  • micromirrors can be arranged in pixels, each of which has the same oriented micromirrors.
  • Fresnel structures cf. EP 1562758 B1
  • Relief heights of 1 ⁇ m to a maximum of 100 ⁇ m and lateral dimensions of less than 10 ⁇ m to less than 100 ⁇ m are known for micromirrors.
  • Another known relief structure for creating a motif are hologram gratings in the form of relief holograms. They consist of metalized relief structures with grating periods of 500 nm to 2 ⁇ m and are arranged in such a way that a viewer perceives a motif or a true-color image in the first diffraction order.
  • the US9188716B1 uses relief structures in the form of retroreflective structures to create colored motifs.
  • One or two-dimensional sub-wavelength gratings are also known for generating a motif or the background, for example from the publication H. Lochbihler, "Colored images generated by metallic sub-wavelength gratings", Opt. Express, Vol. 17, pp. 12189-12196, 2009 , or the WO 2012/156049 .
  • true color images can be generated in the zeroth diffraction order, which can also be used to generate a motif in front of a background. It is also possible to create movement effects in an image by arranging certain relief structures, for example microstructures, in a row (cf.
  • the outline area can be provided with a structure by designing the relief structure accordingly. Texturing may involve a break in the outline area and/or may include microtext or information not visible to the naked eye.
  • the outline can also be a contour line within a complex motif.
  • a complex motif consists of several motif components, whereby one of the motif components is to be understood as the background compared to the other in optical perception, so that the outline delimits the background area, i.e. a motif area of the complex motif, from another motif area of the complex motif.
  • the outline can also be unstructured.
  • a motif area 1 and a background area 2 are formed by different relief structures, which form an optical contrast in reflection, so that the motif can be perceived with the naked eye.
  • the motif is separated from the background by a narrow outline.
  • the year is also set off from the background by an outline.
  • the outlines in outline areas 3 are also produced by relief structures, which are designed in such a way that they form a contrast both to motif area 1 , 4 and to background area 2 . This significantly increases the perceptibility of the motifs for a viewer.
  • the motif area 1, 4 and the background area 2 are characterized by relief structures formed, which are metallized, for example, and embedded in a dielectric. The same applies to the outline 3.
  • the contrast between the different areas is created by an appropriate selection of the profile geometry of the relief structure.
  • the area I corresponds to the motif area 1 or 4, the area II to the background area 2 and the area III to the outline area 3.
  • the security element S is formed on a substrate film 5, on which an embossing lacquer layer 6 was applied, in which the relief structure was introduced, which was then metallized.
  • a topcoat layer 8 and a cover film 9 complete the security element S, which can span a window area of a bank note, for example.
  • Both the area I and the area II are formed in the embodiment of the hologram grating 7, 10 with a sinusoidal profile.
  • the hologram gratings 7 and 10 differ in their configuration with regard to the image they generate.
  • the contrasting outline area 3 is realized by a sub-wavelength grating 12 in area III.
  • the sub-wavelength grating 12 can be periodic in one or two dimensions. It creates a contrast both in relation to the hologram grating 7 and in relation to the hologram grating 10 and thus emphasizes the motif, which is formed by the motif area 1, 4, against the background, which is formed by the background area 2, as an outline.
  • 3 shows another embodiment to illustrate that the relief structures in areas I, II and III can be freely selected in large areas as long as there is a contrast between areas I and II and a contrast between area III and areas I and II given is.
  • the background area 2 is designed differently.
  • the motif area is realized by a micromirror arrangement 13.
  • the outline areas are filled with light absorbing moth eye structures 14 in areas III.
  • the areas I and II are designed here with transmissive hologram gratings, such as those from DE 102014011425 A1 are known.
  • transmissive hologram gratings such as those from DE 102014011425 A1 are known.
  • they also have an additional effect in transmission, ie incident radiation E is not only reflected as reflected radiation R, as is the case in the embodiments of FIG 2 and 3 was the case, but also partially transmitted as transmitted radiation T. In this way, a transmitted light motif is also possible.
  • area III this is combined with a conventional hologram grating, which is opaque after metallization.
  • a demarcation of the motif area 1, 4 from the background area 2 is achieved in a plan view, which results in a bright outline.
  • the structure of 4 also shows a motif in transmission. In this way of looking at it, the outline, ie area III, appears dark and makes this motif more recognizable.
  • These contrast changes in transmission can generally be realized by opaque outlines.
  • Suitable for this purpose are relief structures which are metallized and have a profile which has an aspect ratio, ie a ratio of depth to period, of less than 0.4.
  • Particular examples are smooth metalized surfaces, micromirror arrangements, matt structures or conventional holographic structures etc.
  • Transmissive structures can in particular be those as described in the publication mentioned at the outset from Lochbihler, Opt.
  • transmissive structures generally appear darker in reflection than opaque metallic structures with a low aspect ratio, since the transmitted light component reduces the reflection. Therefore, these flat structures, as bright outlines, significantly improve the perception of the subject in reflection.
  • Figures 2 to 4 naturally show only examples of the lateral arrangement of different relief structures in areas I to III.
  • Other combinations of micromirror arrangements, Fresnel-like structures, ⁇ -lenses, hologram gratings, retroreflection structures, one- or two-dimensional sub-wavelength gratings or moth-eye structures and microcavities are also possible, which provide a brightness and/or color contrast between the respective areas for a viewer.
  • moth eye structures are used. It is also known that moth-eye structures that are coated with a multilayer, e.g. a so-called color-shift coating, produce high-contrast dark colors (cf. EP 2453269 A1 ). Structures that have an average distance of more than 500 nm can also show a high absorption effect after metallization. Such so-called microcavities preferably have a hemispherical indentation with a ratio of depth to aperture width of more than 0.5 and are arranged next to one another, for example, hexagonally or orthogonally.
  • a moth's eye structure is known, which is formed by a metallized cross grating with a period of less than 420 nm.
  • a two-dimensional periodic sub-wavelength grating can also be used for light absorption, as is the case, for example, in WO 2012/156049 A1 is described.
  • This grid is also suitable for color filtering.
  • the geometry parameters of the grating can be selected in such a way that maximum light absorption occurs and the average reflection is below 20%, preferably below 10%.
  • the demarcation between background area, motif area and outline area can be achieved by such structures acting as color filters. These do not necessarily have to be black, but can also appear in another color, eg red or blue. However, dark colors are advantageous for recognizing the motif.
  • These metallic sub-wavelength structures mentioned show increased light absorption in the visible spectral range, partly due to resonant light absorption, which leads to a colored reflection.
  • a high contrast between the outline area and the motif area or background area is guaranteed, since the average absorption in the visible wavelength range is always higher than that of mirror-smooth surfaces, such as micromirrors.
  • these structures can also consist of some directions will not be dark.
  • the outline area can also be filled with micromirrors, which are all oriented in the same way and then only light up brightly at one angle at the same time.
  • micromirrors which are all oriented in the same way and then only light up brightly at one angle at the same time.
  • this has the disadvantage that the areas III then (undesirably) light up brightly at a certain angle, i.e. at this angle the outline area under certain circumstances does not bring about the demarcation between motif and background, but this disadvantage is technically particularly easy to implement , since no other structures have to be produced in addition to micromirrors, in particular no nanostructures. It is then possible to implement the relief structures for the background area, outline area and motif area exclusively by micromirrors, with only the orientation of the micromirrors changing between the individual areas.
  • the angle of the undesired lighting up of these areas is selected so that it is as unobtrusive as possible, for example all mirrors in this area can be oriented downwards as far as possible, so that the lighting up effect only occurs when the view is very oblique.
  • tilting in the east/west direction can be selected with the micromirrors oriented extremely far, for example to the east.
  • Relief structures with a low aspect ratio are suitable for forming bright outlines. After metallization, such structures are largely opaque in transmission and appear bright to an observer in reflection. Micromirrors, hologram gratings, retroreflection structures and flat surfaces are particularly suitable for this.
  • the bump texture can change the color-shift color in the outline area to effect the delineation.
  • the average brightness of the outline area is less than 50% of the average brightness of the motif area and the background area in reflection and optionally also in transmission.
  • the average brightness of the outline area is more than 20% higher than that of the subject area and the background area in reflection and optionally also in transmission.
  • Micromirrors, hologram gratings and/or sawtooth gratings are preferably used in the motif area and background area, and sub-wavelength structures (especially color-filtering or moth-eyes), hologram gratings and/or matt structures are used in the outline area.
  • the relief structure is preferably produced using lithographic methods, for example an e-beam system or a laser writing system which works, for example, with a two-photon absorption process.
  • lithographic methods for example an e-beam system or a laser writing system which works, for example, with a two-photon absorption process.
  • it can be created in a two-step lithographic process.
  • nanostructuring is carried out. This is done, for example, by an electron beam lithographic process.
  • laser beam interference methods can also be considered.
  • Aperiodic moth-eye structures can also be produced by plasma etching or by structuring with ultra-short laser pulses.
  • a subsequent step such an original or a copy of it is leveled with photoresist. Spin coating or dip coating processes are particularly suitable for this.
  • stamps can now be duplicated next to each other over a larger area using a step-and-repeat process.
  • An embossing cylinder can be produced from this original, which has been replicated on the surface, by galvanic molding.
  • the structure can be embossed on foil in a continuous roll-to-roll process.
  • Nanoimprint processes such as hot embossing or embossing in UV-curable materials can be used here.
  • the embossed foil is metallically vapour-deposited.
  • the common evaporation processes are electron beam evaporation, thermal evaporation or sputtering.
  • Metals such as aluminum, silver, copper, palladium, gold, chromium, nickel, iron, cobalt and/or tungsten and their alloys can be used as the metallic material.
  • the structure is optionally laminated and protected with the cover film 9. Instead of a simple metal coating, the relief structure can also be coated with a multiple layer.
  • color-shift coatings which consist of a semi-transparent metal layer, a dielectric spacer layer and a metallic mirror layer located underneath, are particularly suitable for this purpose.
  • SiO 2 , MgF 2 , Ta 2 O 5 , ZnS and polymers are particularly suitable as dielectrics.
  • Another alternative is a dielectric coating with a high-index material. If additional demetallized areas are required on the film element, wash ink is printed on the desired areas before vapor deposition and then removed after vapor deposition. Alternatively, these areas can also be created with laser demetallization or wet-chemical etching processes.
  • a motif (eg in the form of a cord) is provided with a movement effect.
  • the motif area 1, 4 is generated by a series of micromirrors and has a "rolling Bar” effect on how they look eg DE 102010047250 A1 are known in which bright bars move up and down when tilted. The movements of several bars can be the same or opposite.
  • Such motifs are much easier to recognize with outlines, since otherwise a viewer might only see a "mess" of bright light reflections.
  • the outline area makes the actual shape easily visible to a viewer. He can e.g. B. by color-filtering sub-wavelength structures or - be realized by moth eye structures - if a dark contour is desired.
  • the micromirrors can be provided with a colour-shifting coating (eg triple-layer structure with the sequence absorber, dielectric, reflector).
  • the relief structures in the contour line area particularly advantageously change the color impression of this coating, e.g. B. by suitable sub-wavelength structures. In this way, not only light or dark outlines can be generated, but also outlines with a different color than the color within the motion effects.
  • Another effect that can be produced in particular with sub-wavelength structures in the outline area is higher transmission.
  • Metallic sub-wavelength gratings which have a pronounced transmission, show a clear contrast to flat surfaces, hologram gratings or micro-mirror structures. In particular when using moth-eye structures in the outline area, this appears dark when viewed from above and light when viewed through (e.g. when used in a banknote window).
  • color-filtering sub-wavelength structures are used in the outline area, the color of the outline area can differ from the color of the motif area with a movement effect when viewed from above or seen through.
  • the outline area itself can also show different colors in reflected and transmitted light.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Holo Graphy (AREA)
EP18713788.0A 2017-04-04 2018-03-19 Sicherheitselement mit reliefstruktur und herstellungsverfahren hierfür Active EP3606765B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017003281.5A DE102017003281A1 (de) 2017-04-04 2017-04-04 Sicherheitselement mit Reliefstruktur und Herstellungsverfahren hierfür
PCT/EP2018/000100 WO2018184715A1 (de) 2017-04-04 2018-03-19 Sicherheitselement mit reliefstruktur und herstellungsverfahren hierfür

Publications (2)

Publication Number Publication Date
EP3606765A1 EP3606765A1 (de) 2020-02-12
EP3606765B1 true EP3606765B1 (de) 2022-06-29

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EP (1) EP3606765B1 (es)
JP (1) JP7104062B2 (es)
CN (1) CN110520304B (es)
DE (1) DE102017003281A1 (es)
WO (1) WO2018184715A1 (es)

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Publication number Priority date Publication date Assignee Title
JP7111517B2 (ja) 2018-06-14 2022-08-02 シャープ株式会社 走行装置、走行装置の走行制御方法、走行装置の走行制御プログラムおよび記録媒体
DE102018009912A1 (de) * 2018-12-17 2020-06-18 Giesecke+Devrient Currency Technology Gmbh Verfahren zum Herstellen eines optisch variablen Sicherheitselements
DE102021001898A1 (de) * 2021-04-13 2022-10-13 Giesecke+Devrient Currency Technology Gmbh Optisch variables sicherheitselement und wertdokument mit dem optisch variablen sicherheitselement
DE102021001899A1 (de) * 2021-04-13 2022-10-13 Giesecke+Devrient Currency Technology Gmbh Optisch variables sicherheitselement und wertdokument mit dem optisch variablen sicherheitselement

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JP7104062B2 (ja) 2022-07-20
CN110520304A (zh) 2019-11-29
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CN110520304B (zh) 2021-06-22
EP3606765A1 (de) 2020-02-12
DE102017003281A1 (de) 2018-10-04

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