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EP2727741B1 - Document précieux à structure optiquement variable (et variantes) - Google Patents

Document précieux à structure optiquement variable (et variantes) Download PDF

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Publication number
EP2727741B1
EP2727741B1 EP12803793.4A EP12803793A EP2727741B1 EP 2727741 B1 EP2727741 B1 EP 2727741B1 EP 12803793 A EP12803793 A EP 12803793A EP 2727741 B1 EP2727741 B1 EP 2727741B1
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EP
European Patent Office
Prior art keywords
lines
raster
dimensional
document
printed
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
EP12803793.4A
Other languages
German (de)
English (en)
Other versions
EP2727741A4 (fr
EP2727741A2 (fr
Inventor
Arkadiy Vladimirovich Trachuk
Andrey Borisovich Kuryatnikov
Alexandr Georgievich Pisarev
Igor Vasilievich Pavlov
Aleksandr Igorievich Mochalov
Alexey Vitalevich Salunin
Anna Menashevna Rytikova
Vladimir Ivanovich Shapinov
Konstantin Gennadievich Rybin
Dmitry Petrovich BOLOTOV
Elena Mikhailovna Fedorova
Galina Sergeevna Baranova
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.)
Goznak JSC
Original Assignee
Goznak JSC
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Publication date
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Publication of EP2727741A2 publication Critical patent/EP2727741A2/fr
Publication of EP2727741A4 publication Critical patent/EP2727741A4/fr
Application granted granted Critical
Publication of EP2727741B1 publication Critical patent/EP2727741B1/fr
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • 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
    • B42D25/342—Moiré effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/382—Special inks absorbing or reflecting infrared light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G07D7/0032—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using holograms

Definitions

  • the invention relates to a counterfeit- protected valuable document such as an information medium with an optically variable structure that attests to the authenticity of the medium, and is applicable in the production of banknotes and securities.
  • the medium can also refer to cards which are used for person identification or for committing transactions or services.
  • Optically variable structure is used as a feature that can be checked both without technical aids and using simple available means, if necessary, along with other features to verify the authenticity of a valuable document.
  • a conventional banknote ( RU 2161092 C2 , B32B 29/02, 27.12.2000) comprises a printed pattern formed by parallel lines and an additional embossed three-dimensional linear structure. Due to a certain mutual arrangement of the printed and three-dimensional structures the printed lines are visible when the banknote is viewed perpendicular to the surface and not visible when the document is viewed at an acute angle.
  • Another information medium ( CA 1019012 A , B32B 29/02, 11.10.1997) comprises an optically variable structure formed by a printed raster with straight equispaced elements and a three-dimensional raster with straight equispaced elements, the three-dimensional raster being positioned relative to the printed raster such that when the information medium is viewed perpendicularly to its surface all printed information is visible, while at an acute angle of view of the surface only that part which is not occluded by the three-dimensional raster can be seen.
  • RU 2249638 C1 discloses a method of manufacturing securities using a metallographic plate with asymmetrical line profile. However, the method is aimed at producing engraving lines that are coloured unevenly across the direction thereof. The method is not directed at embossing followed by formation of differently coloured moir fringes.
  • Patent application RU 2010132328 discloses an information medium comprising a printed raster and a three-dimensional raster, which are arranged so that to create a moir pattern in the form of smoothly blending coloured fringes, and the three-dimensional raster may contain areas made by bleached ink, thus when the angle of view of the valuable document changes the moir fringes seem to be moving.
  • CA 2 421 101 A1 discloses a data carrier with an optically variable structure comprising an embossed structure with symmetrical profile of lines and a coating that contrasts with the surface of the data support.
  • the embossed structure with the coating are combined in such a way that when the structure is viewed in a vertical position, at least parts of the coating are completely visible while when the structure is viewed at an angle, said parts are concealed, so that a tilting effect is produced when the structure is viewed alternately in the vertical position and at an angle.
  • the object of the invention is to improve the security properties of an optically variable feature which can be observed when the angle of inclination and/or the direction of viewing of a valuable document is changed, as a result of using at least partially asymmetric profile of a three-dimensional raster which causes disappearance and/or change of the colour gamut of the image of an area of the valuable document observed at the same angle but rotated 180 degrees.
  • the object of the invention is to improve an optically variable security feature as a result of the effect of changing the optical density or colour gamut of an area of a valuable document made with the use of a three-dimensional raster with at least partially asymmetrical profile of the line cross section, observed when the viewing direction of the valuable document is changed by 180 degrees without any change in the angle of inclination, thereby facilitating the check of the document authenticity by an untrained user.
  • the effect of changing the colour gamut comprises changing the colour of moir fringes or single-colour areas of the image when the viewing direction of the valuable document changes, the colour being changed under the CMY to RGB conversion model.
  • CY to RGB conversion refers to the effect of changing the colour gamut where pure colours (CMY) are replaced with mixed colours (RGB), that is cyan, magenta yellow are changed to red (as a mix of magenta and yellow), blue (as a mix of magenta and cyan), green (as a mix of blue and yellow).
  • the invention can be implemented in four embodiments.
  • a first embodiment of the invention can be characterized in that:
  • the effect of changing the colour gamut of moire fringes or single-colour areas of the image under the CMY to RGB model is ensured by the fact that the boundary of two or more colours of the printed raster is predominantly located on sloping areas of the three-dimensional raster having an asymmetrical section line profile, and when the viewing direction of the information medium changes without any change in the viewing angle the visible sloping surface area of the line of the three-dimensional raster changes as well.
  • two or more colours of the printed raster mix to create the impression of changing the colour gamut of moire fringes or one-colour areas according to the CMY to RGB model.
  • the angle between the direction of lines of the printed and three-dimensional rasters is from 0 to 45 degrees.
  • a valuable document is made on a paper base (3) and comprises a printed raster (1) made by offset printing and a three-dimensional raster (2) with an asymmetric line profile, which is applied by blind embossing using intaglio printing, lines of the three-dimensional raster being parallel to the printed raster lines.
  • the printed raster (1) comprises alternating, equispaced lines of three different colours - yellow, magenta, and blue, having a constant equal width.
  • the three-dimensional raster (2) comprises alternating asymmetrical profile lines which form a latent image as shown in Fig. 2 .
  • a valuable document is made on a paper base (7) and comprises a printed raster (5) made by three-colour offset printing and a three-dimensional linear raster (6) made by blind embossing using intaglio printing, lines of the three-dimensional raster being rotated relative coloured lines of the printed raster at the angle of 15 degrees.
  • the printed raster comprises alternating, equispaced lines of three different colours - yellow, magenta, and blue, having a constant equal width.
  • Line of each colour exhibits visible luminescence under UV radiation in the wavelength range of 330-370 nm, the luminescence colour being different for lines of each colour.
  • the three-dimensional raster comprises alternating lines of the same thickness, but the spacing between the lines is twice the width of the lines.
  • the three-dimensional raster is made partially with symmetrical profile lines (8), and partially with asymmetrical profile lines (9) which form a latent image as shown in Fig. 5
  • a valuable document is made on a plastic base (13) and comprises a printed raster (12) produced by three-colour offset printing and a three-dimensional linear raster (11) applied by blind embossing using intaglio printing on a transparent upper layer (10) applied over the printed raster, whose lines are rotated from the coloured lines of the printed raster at the angle of 10 degrees.
  • the printed raster comprises alternating equispaced lines of three different colours - yellow, magenta, and blue, having a constant equal width.
  • the three-dimensional raster comprises alternating lines of the same thickness, but the spacing between the lines is twice the width of the lines.
  • the three-dimensional raster is formed partially of symmetrical profile lines (14) and partially of asymmetrical profile lines (15) which form a latent image as shown in Fig. 8 .
  • a valuable document is made on a paper base (16) and comprises a printed raster (19) formed by two-colour offset printing, where the colours are similarly light gray, and a three-dimensional raster (17) applied by a blind embossing using intaglio printing, lines of the three-dimensional raster being rotated relative to the printed raster lines at an angle of 17 degrees.
  • the printed raster comprises alternating equispaced lines formed by two inks of the same gray colour, but having different UV and IR properties, having a constant equal width, and when viewed in ordinary light the raster is visually perceived as a single-colour area (11a)
  • the inks have different luminescence colour when exposed to UV radiation in the wavelength range of 330-370 nm, and different IR absorption properties in the wavelength range of 700-1100 nm.
  • the first ink fluoresces red under UV radiation, while the second ink fluoresces green.
  • the first ink has a broad absorption spectrum in the wavelength range of 700-1100 nm, while the second ink selectively absorbs in the range of 700-860 nm.
  • the three-dimensional raster comprises alternating lines having the same thickness, but the spacing between the lines is twice the width of the lines.
  • a part of the three-dimensional raster is formed with lines rotated 90 degrees (18), which form a latent image.
  • lines rotated 90 degrees (18) which form a latent image.
  • the invention provides a counterfeit-protected valuable document with an optically variable image, which makes it possible for an untrained user to carry out a visual authenticity check both without technical aids and using simple available means.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)

Claims (19)

  1. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document, comprenant un revêtement sous la forme d'une trame imprimée (1), comprenant des lignes alternées d'au moins deux couleurs différentes, dans lequel au moins une couleur de la ligne de trame imprimée est différente de la couleur de la base du document (3), et une trame tridimensionnelle (2), dans lequel au moins une partie des lignes de la trame tridimensionnelle présente un profil de section transversale asymétrique avec un rapport de forme d'au moins 1:1,25, et la trame tridimensionnelle est agencée de telle manière par rapport au revêtement que la trame tridimensionnelle est au moins partiellement disposée sur le revêtement, est orientée substantiellement parallèlement aux lignes de la trame imprimée et forme une image latente non discernable ensemble avec le revêtement, lorsque le document est visualisé selon un angle droit par rapport à la surface, une zone uniformément colorée (3a) est observée ; de telle façon que
    lorsque l'angle de visualisation du document dans le plan perpendiculaire à la direction de lignes de la trame tridimensionnelle est modifié, l'image latente devient visible sous la forme d'élément colorés ou d'une région d'une seule couleur dans la zone de la trame tridimensionnelle, et lorsque la direction de visualisation est modifiée de 180 degrés sans aucune modification dans l'angle de visualisation, l'effet de la modification de la densité optique ou de la gamme de couleurs représente la conversion de couleurs du système de couleurs CMY au système de couleurs RGB, lorsque l'angle de visualisation du document dans le plan parallèle à la direction de lignes de la trame tridimensionnelle est modifié, l'élément latent supplémentaire (4) est observé.
  2. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 1, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle présentent une largeur constante et/ou variable, et un espacement constant et/ou variable entre des lignes adjacentes, et/ou dans lequel des lignes de la trame tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil de ligne à section transversale asymétrique différente.
  3. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 1, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle peuvent présenter différentes configurations, y compris des lignes droites, courbes et concentriques, et des lignes de la trame imprimée peuvent en outre présenter une absorption différente de rayonnement optique dans le spectre infrarouge, et/ou des lignes de la trame imprimée peuvent présenter différentes couleurs de luminescence sous un rayonnement ultraviolet et/ou infrarouge.
  4. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 1, dans lequel des paramètres de la trame imprimée et de la trame tridimensionnelle forment en outre différents effets visuels, y compris une variable latente et/ou de couleur.
  5. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document, comprenant un revêtement sous la forme d'une trame imprimée (5), comprenant des lignes alternées d'au moins deux couleurs différentes, dans lequel au moins une couleur de la ligne de trame imprimée est différente de la couleur de la base du document (7), et une trame tridimensionnelle (6) agencée de telle façon par rapport au revêtement que la trame tridimensionnelle est au moins partiellement disposée sur le revêtement, dans lequel au moins une partie des lignes de la trame tridimensionnelle (6) présente un profil de section transversale asymétrique, et la largeur des lignes et l'espacement entre des lignes de la trame imprimée et de la trame tridimensionnelle et l'orientation mutuelle des trames sont sélectionnés de manière à former une image latente, et lorsque le document de valeur est visualisé selon un angle, des franges de moiré multicolores sont observées et l'image latente n'est pas discernable ; au moins une parties des lignes de la trame tridimensionnelle présente un profil de section transversale asymétrique avec un rapport de forme d'au moins 1:1,25, de telle façon que lorsque la direction de visualisation est modifiée de 180 degrés sans aucune modification dans l'angle de visualisation, l'image latente devient visible contre l'arrière-plan des franges de moiré multicolores en raison d'une modification dans la gamme de couleurs de la partie de moiré coloré située dans la région de la trame tridimensionnelle avec un profil de ligne à section transversale asymétrique, où l'effet de la modification de la gamme de couleurs représente la conversion des couleurs du système CMY au système de couleurs RGB.
  6. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 5, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle sont orientées différemment les unes par rapport aux autres, présentent une largeur constante et/ou variable, et un espacement constant et/ou variable entre des lignes adjacentes et/ou dans lequel des lignes de la trame tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil de ligne à section transversale asymétrique différente.
  7. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 5, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle présentent différentes configurations, telles que des lignes droites, courbes, y compris concentriques, et/ou dans lequel des lignes de la trame tridimensionnelle sont d'une seule couleur ou multicolores sur la longueur et/ou des zones séparées.
  8. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 5, dans lequel des paramètres de la trame imprimée et de la trame tridimensionnelle forment en outre différentes structures de moiré et/ou différents effets visuels, y compris une variable latente et/ou de couleur.
  9. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 5, dans lequel la trame imprimée est constituée de lignes créant une image visible lorsque le document est visualisé selon un angle droit.
  10. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 5, dans lequel des lignes de la trame imprimée présentent en outre une couleur de luminescence différente sous un rayonnement ultraviolet et/ou infrarouge, et/ou dans lequel des lignes de la trame imprimée présentent en outre une absorption de rayonnement optique différente dans le spectre infrarouge.
  11. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document, comprenant un revêtement sous la forme d'une trame imprimée (12), comprenant des lignes alternées d'au moins deux couleurs différentes, dans lequel au moins une couleur de la ligne de trame imprimée est différente de la couleur de la base du document (13), et une trame tridimensionnelle (11) réalisée sur un matériau transparent (10) et agencée de telle façon par rapport au revêtement que la trame tridimensionnelle (11) est au moins partiellement disposée sur le revêtement, la largeur des lignes et l'espacement entre les lignes de la trame imprimée et de la trame tridimensionnelle et l'orientation mutuelle des trames étant sélectionnés de telle façon que des franges de moiré coloré sont observées lorsque l'angle de visualisation est modifié ; au moins une partie des lignes de la trame tridimensionnelle présentant un profil de section transversale asymétrique avec un rapport de forme d'au moins 1:1,25 formant une image latente, de sorte que lorsque la direction de visualisation est modifiée de 180 degrés sans aucune modification dans l'angle de visualisation, l'image latente devient visible contre l'arrière-plan des franges de moiré coloré, en raison d'une modification dans la gamme de couleurs de la partie des franges de moiré située dans la région des lignes avec un profil de section transversale asymétrique, et tandis que l'angle de visualisation est modifié simultanément, des frontières des franges de moiré multicolores semblent bouger, l'effet de la modification de la gamme de couleurs représentant la conversion des couleurs du système de couleurs CMY au système de couleurs RGB.
  12. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 11, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle sont orientées différemment les unes par rapport aux autres, présentent une largeur constante et/ou variable, et un espacement constant et/ou variable entre des lignes adjacentes et/ou dans lequel des lignes de la trame tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil de ligne à section transversale asymétrique différente.
  13. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 11, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle présentent différentes configurations, telles que des lignes droites, courbes, y compris concentriques.
  14. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 11, dans lequel des paramètres de la trame imprimée et de la trame tridimensionnelle forment en outre différentes structures de moiré et/ou différents effets visuels, y compris une variable latente et/ou de couleur.
  15. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 11, dans lequel des lignes de la trame imprimée présentent en outre une couleur de luminescence différente sous un rayonnement ultraviolet et/ou infrarouge, et/ou dans lequel des lignes de la trame imprimée présentent en outre une absorption de rayonnement optique différente dans le spectre infrarouge.
  16. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document, comprenant un revêtement sous la forme d'une trame imprimée (19) comprenant des lignes alternées formées dans au moins deux couleurs présentant des encres non distinguables dans le spectre visible ou par des encres incolores distinguables dans l'absorption d'un rayonnement optique dans la spectre infrarouge et/ou dans la couleur de luminescence sous un rayonnement ultraviolet et/ou infrarouge, et une trame tridimensionnelle (17) agencée de telle façon par rapport au revêtement que la trame tridimensionnelle (17) est au moins partiellement disposée sur le revêtement, la largeur des lignes et l'espacement entre des lignes de la trame imprimée et de la trame tridimensionnelle et l'orientation mutuelle des trames étant sélectionnés de manière à ce que celles-ci forment une image latente susceptible d'être vue uniquement lorsque le document de valeur est visualisé sous un éclairage ultraviolet et/ou un outil de visualisation infrarouge ; au moins une partie des lignes de la trame tridimensionnelle présentant un profil de section transversale avec un rapport de forme d'au moins 1:1,25, de sorte que lorsque l'angle de visualisation du document de valeur est modifié, des franges de moiré multicolores sont observées, et lorsque la direction de visualisation est modifiée de 180 degrés sans aucune modification dans l'angle de visualisation, l'image latente devient visible contre l'arrière-plan des franges de moiré d'une seule couleur ou multicolores, en raison d'une modification dans la densité optique ou la gamme de couleurs de la partie des franges de moiré située dans la région de la trame tridimensionnelle avec un profil de section transversale asymétrique, où l'effet de la modification de la gamme de couleurs représente la conversion des couleurs du système de couleurs CMY au système de couleurs RGB.
  17. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 16, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle sont orientées différemment les unes par rapport aux autres, présentent une largeur constante et/ou variable, et un espacement constant et/ou variable entre des lignes adjacentes et/ou dans lequel des lignes de la trame tridimensionnelle présentent une profondeur constante et/ou variable et/ou un profil de ligne à section transversale asymétrique différente.
  18. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 16, dans lequel des lignes de la trame imprimée et de la trame tridimensionnelle présentent différentes configurations, telles que des lignes droites, courbes, y compris concentriques.
  19. Document de valeur avec une structure optiquement variable certifiant l'authenticité du document selon la revendication 16, dans lequel des paramètres de la trame imprimée et de la trame tridimensionnelle forment en outre différentes structures de moiré et/ou différents effets visuels, y compris une variable latente et/ou de couleur.
EP12803793.4A 2011-06-30 2012-06-22 Document précieux à structure optiquement variable (et variantes) Active EP2727741B1 (fr)

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RU2011126649/12A RU2467879C1 (ru) 2011-06-30 2011-06-30 Ценный документ с оптически переменной структурой (варианты)
PCT/RU2012/000492 WO2013002680A2 (fr) 2011-06-30 2012-06-22 Document précieux à structure optiquement variable (et variantes)

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WO2014124374A1 (fr) * 2013-02-08 2014-08-14 Graphic Security Systems Corporation Images latentes à ombre multiple
JP6468534B2 (ja) * 2015-07-22 2019-02-13 独立行政法人 国立印刷局 真偽判別可能な情報担持体
JP6590258B2 (ja) * 2016-07-19 2019-10-16 独立行政法人 国立印刷局 透過潜像画像形成体
AU2016102127B4 (en) * 2016-12-16 2017-09-28 Ccl Secure Pty Ltd Optically variable moire security device
CN108466504B (zh) * 2017-02-23 2021-02-02 中钞特种防伪科技有限公司 光学防伪元件和光学防伪产品
EP3914594A4 (fr) * 2019-01-22 2022-09-14 Bisichem Co., Ltd. Composé hétéroaryle à noyau fusionné utilisé en tant qu'inhibiteur d'alk4/5
RU2721793C1 (ru) * 2019-08-10 2020-05-25 Владислав Юрьевич Верещагин Способ определения подлинности цифрового изображения по скрытому маркеру, содержащему дополнительное сообщение
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EP2727741A4 (fr) 2015-05-27
CO6920269A2 (es) 2014-04-10
WO2013002680A2 (fr) 2013-01-03
EP2727741A2 (fr) 2014-05-07
RU2467879C1 (ru) 2012-11-27
WO2013002680A3 (fr) 2013-03-14
CN103764403A (zh) 2014-04-30
CN103764403B (zh) 2016-02-03

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