WO2013160583A1 - Method for forming a color laser image having degraded colors on the edges thereof, and resulting document - Google Patents

Method for forming a color laser image having degraded colors on the edges thereof, and resulting document Download PDF

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Publication number
WO2013160583A1
WO2013160583A1 PCT/FR2013/050840 FR2013050840W WO2013160583A1 WO 2013160583 A1 WO2013160583 A1 WO 2013160583A1 FR 2013050840 W FR2013050840 W FR 2013050840W WO 2013160583 A1 WO2013160583 A1 WO 2013160583A1
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WO
WIPO (PCT)
Prior art keywords
sub
pixels
latent image
colored
periphery
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Application number
PCT/FR2013/050840
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French (fr)
Inventor
Jean-Pierre Lazzari
Jean-Marc Lazzari
Original Assignee
Jean-Pierre Lazzari
Jean-Marc Lazzari
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Application filed by Jean-Pierre Lazzari, Jean-Marc Lazzari filed Critical Jean-Pierre Lazzari
Publication of WO2013160583A1 publication Critical patent/WO2013160583A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/34—Multicolour thermography
    • 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
    • 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
    • B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
    • 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
    • B42D2035/06—
    • B42D2035/26—

Definitions

  • the present invention relates to a method for forming degraded color laser images on its periphery. It finds applications particularly in identity images relating to identity documents: identity cards, credit cards,. vital cards, passports, driving licenses, secure entry badges, etc.
  • Patent WO 2011/124774 A1 discloses a method of personalization of embedded latent images, for identity documents, comprising a latent image, composed of a matrix of pixels consisting of colored sub-pixels, embedded in a protective layer
  • gray levels are created on subpixels by covering them with a black non-reflecting surface, through the transparent protective layer, creating the gray levels of the image definitive color laser. This treatment allows the personalization of the latent image, consisting of colored sub-pixels.
  • Patent Application No. 11/00578 discloses a method for producing a high efficiency reflective laser image, comprising a latent image consisting of colored sub-pixels, surrounded by transparent non-colored areas, covered with a protective layer
  • laser beam appears in this layer of protection lasérisable, black, non-reflective surfaces, which cover more or less surfaces of colored subpixels, and unstained surfaces, showing the gray levels of a custom image.
  • these personalized images being obtained from a latent image, consisting of sub-pixels printed, the
  • the object of the present invention is to overcome the drawbacks of the state of the art by producing a sub-pixel color gradient on the periphery of the latent image.
  • the subject of the invention is a method for forming a color laser image with degraded colors on its periphery, starting from an assembly comprising a protective layer.
  • a latent image consisting of sub-colored pixels and transparent non-colored surfaces, a lasérisable layer, and a laser beam which through the protective layer, forms in the lasérisable layer the gray levels of a final personalized image, the assembly being laminated on a support.
  • the transparent non-colored surfaces of the latent image cover a larger and larger surface, approaching the periphery of the latent image, to finally occupy the entire surface of the colored sub-pixels at the periphery of the latent image, thus making transparent the background colors of the identity document.
  • Laserizable materials which by carbonization under the effect of a laser beam, form the gray levels of the customized image are, by way of non-limiting examples, polycarbonates, certain polyvinyl chloride treated, acrylonitrile-butadiene treated styrenes, or treated polyethylene terephthalates.
  • the colored sub-pixels are printed by offset, inkjet, or any other technique known to those skilled in the art.
  • the unstained transparent areas are located between the colored sub pixels.
  • the colored sub-pixels, and the transparent non-colored areas are organized in parallel columns, or in small uniformly distributed areas.
  • the latent image may consist of triplets or quadruplets of colored sub pixels.
  • the color of the sub-pixels is preferably chosen from among the independent colors. The colors red, green blue, or yellow, magenta and cyan are part of these colors.
  • the gray levels of the personalized image are obtained by the degree of blackening which is made proportional to the energy deposited by the laser, thanks to linearization software, known to those skilled in the art, as well as by variable areas of carbonization.
  • the laseable layer may be above or below the latent image.
  • the protective layer, and the layer of lasérisable material are heat-welded under pressure on the body of the identity document.
  • the laserizable layer is obtained by surface doping of the body of the document, the latent image consisting of colored sub-pixels and non-colored areas;
  • transparencies is printed on the doped surface of the body of the document.
  • the sub-pixels of the latent image are printed on the surface of the protective layer intended to be laminated on the lasérisable layer.
  • the protective layer is made of lasérisable materials, the sub pixels of the latent image are printed on the surface of the protective layer intended to be laminated.
  • the protective layer is formed hot during rolling, to give it the shape of a network of lenses allowing the laser to burn on the latent image, several separate personalized color laser images.
  • the invention also relates to a document comprising a personalized laser image with degraded colors on its periphery realized by the implementation of the method above.
  • This document comprises a transparent protective sheet, a latent image consisting of a matrix of colored sub-pixels and non-colored areas
  • the transparent non-colored surfaces of the latent image cover a larger and larger surface, approaching the periphery of the latent image, to finally occupy the entire surface of the colored sub-pixels at the periphery of the latent image, thus showing up by
  • the protective sheet, the latent image, the lasérisable layer, and the support are able to be laminated together.
  • FIG. 1 shows in plan, the sub-pixels according to the prior art of a color laser image.
  • FIG. 2 shows in plan, the sub-pixels according to a first embodiment of the invention
  • FIG. 3 shows in plan the sub-pixels according to a second embodiment of the invention.
  • Figure 1 shows in plan subpixels according to the prior art. This figure shows the upper right angle of the latent image, composed of sub pixels (1), (2), (3), in columnar form. These sub pixels are colored. Between the sub-pixels there are uncolored strips (4). The subpixels, colored, are printed on the grounds or the background colors of the body of the identity document. For example, a pattern,
  • FIG. 2 shows in plan, sub-pixels according to the invention.
  • the upper right corner of the frame of the image is represented by the axes (6) and (7).
  • the first sub-pixel (21) is narrow, and ends in a point when it approaches the axis (7).
  • the second sub-pixel (22) is a little wider, and the sub-pixel (23) is even wider. Unstained surfaces between first sub pixels
  • the pattern (5) printed on the body of the document is visible on regions close to the axes (6) and (7), and less and less visible when approaching the center of the image.
  • the personalization of the final image is carried out by the laser beam which by carbonization, reveals black non-reflective surfaces, which more or less mask the color of the sub pixels, to form the gray levels, of the personalized image final.
  • the latter therefore appears with degraded colors around the frame of the image, revealing the patterns or colors of the background of the document.
  • FIG. 3 shows sub-pixel planes according to another embodiment of the invention.
  • Subpixels (31) have the regular square shape and sizes
  • the sub-pixels (32), (33), and (34) have smaller and smaller sizes as they approach the axis (6), and also when they approach the axis (7) to reach a very small size like those of the sub pixels (35).
  • the spaces separating the sub-pixels, are larger and larger when one approaches the axes (6) and (7).
  • the pattern (5) printed on the body of the document appears on the periphery of the personalized image.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

The present invention relates to a method for forming color laser images having degraded colors on the edges thereof, in order to cause the background colors of the substrate of the document to appear. The invention is particularly useful in identification images for identity documents, i.e. identification cards, credit cards, health insurance cards, passports, driving licenses, secure entry badges, etc.

Description

PROCEDE DE FORMATION D'IMAGE LASER COULEUR AUX COULEURS DEGRADEES SUR SA PERIPHERIE ET DOCUMENT AINSI REALISE  METHOD FOR FORMING LASER COLOR-COLORED LASER IMAGE ON ITS PERIPHERY AND DOCUMENT THUS REALIZED
DESCRIPTIF DESCRIPTION
Domaine d'application de l'invention:  Field of application of the invention
La présente invention concerne un procédé de' formation d' images laser couleur aux couleurs dégradées sur sa périphérie. Elle trouve des applications notamment dans les images d' identité relatives aux documents identitaires : cartes d'identité, cartes de crédit, . cartes vital, passeports, permis de conduire, badges d'entrée sécurisés, etc.  The present invention relates to a method for forming degraded color laser images on its periphery. It finds applications particularly in identity images relating to identity documents: identity cards, credit cards,. vital cards, passports, driving licenses, secure entry badges, etc.
Etat de l'art antérieur: State of the prior art:
Le brevet WO 2011/124774 Al, décrit un procédé de personnalisation d'images latentes encastrées, pour documents identitaires, comprenant une image latente, composée d'une matrice de pixels constitués de sous pixels colorés, encastrée sous une couche de protection  Patent WO 2011/124774 A1 discloses a method of personalization of embedded latent images, for identity documents, comprising a latent image, composed of a matrix of pixels consisting of colored sub-pixels, embedded in a protective layer
transparente. A l'aide d'un faisceau laser, des niveaux de gris sont créés sur les sous pixels en les recouvrant d'une surface non réfléchissante noire, au travers de la couche transparente de protection, créant ainsi les niveaux de gris de l'image laser couleur définitive. Ce traitement permet la personnalisation de l'image latente, constituée des sous pixels colorés. transparent. Using a laser beam, gray levels are created on subpixels by covering them with a black non-reflecting surface, through the transparent protective layer, creating the gray levels of the image definitive color laser. This treatment allows the personalization of the latent image, consisting of colored sub-pixels.
La demande de brevet n° 11/00578, décrit un procédé de réalisation d'une image laser à haut rendement réflectif, comprenant une image latente constituée de sous pixels colorés, entourés de zones transparentes non colorées, recouverts d'une couche de protection  Patent Application No. 11/00578 discloses a method for producing a high efficiency reflective laser image, comprising a latent image consisting of colored sub-pixels, surrounded by transparent non-colored areas, covered with a protective layer
transparente sensible au rayonnement laser, que l'on nommera par la suite, « couche lasérisable ». Un faisceau laser fait apparaître dans cette couche de protection lasérisable, des surfaces noires, non réfléchissantes, qui recouvrent plus ou moins les surfaces des sous pixels colorés, et des surfaces non colorées, faisant apparaître les niveaux de gris d'une image personnalisée. transparent sensitive to laser radiation, which will be called thereafter, "lasérisable layer". A laser beam appears in this layer of protection lasérisable, black, non-reflective surfaces, which cover more or less surfaces of colored subpixels, and unstained surfaces, showing the gray levels of a custom image.
La demande de brevet n° 11/03919 déposée le 19 décembre 2012, décrit un procédé de formation d'une image laser couleur, comprenant des sous pixels colorés, et une couche lasérisable située sous les sous pixels. Un  The patent application No. 11/03919 filed on December 19, 2012, describes a method of forming a color laser image, comprising sub-colored pixels, and a lasérisable layer located under the sub-pixels. A
faisceau laser fait apparaître dans cette couche laser beam makes appear in this layer
lasérisable, les niveaux de gris de l'image définitive, personnalisée. lasérisable, the gray levels of the final image, personalized.
Bien qu'intéressantes à certains égards, ces images personnalisées étant obtenues à partir d'une image latente, constituée de sous pixels imprimés, la  Although interesting in some respects, these personalized images being obtained from a latent image, consisting of sub-pixels printed, the
périphérie de ces images laser couleur, est couverte par les sous pixels de l'image latente. Il n'est donc pas possible de faire apparaître un dégradé de couleurs, afin de rendre visible, le fond du document identitaire, sur la périphérie de l'image.  periphery of these color laser images, is covered by the sub pixels of the latent image. It is therefore not possible to display a color gradient, in order to make visible, the background of the identity document, on the periphery of the image.
Exposé de l'invention : Presentation of the invention
La présente invention, a pour but de remédier aux inconvénients de l'état de la technique, en produisant un dégradé de couleurs des sous pixels sur la périphérie de l'image latente.  The object of the present invention is to overcome the drawbacks of the state of the art by producing a sub-pixel color gradient on the periphery of the latent image.
De façon plus précise, l'invention a pour objet un procédé de formation d' une image laser couleur aux couleurs dégradées sur sa périphérie, à partir d'un assemblage comprenant une couche de protection  More specifically, the subject of the invention is a method for forming a color laser image with degraded colors on its periphery, starting from an assembly comprising a protective layer.
transparente, une image latente constituée de sous pixels colorés et de surfaces non colorées transparentes, une couche lasérisable, et un faisceau laser qui au travers de la couche de protection, forme dans la couche lasérisable les niveaux de gris d'une image personnalisée définitive, l'ensemble étant laminé sur un support. Les surfaces non colorées transparentes de l'image latente, couvrent une surface de plus en plus grande en se rapprochant de la périphérie de l'image latente, pour occuper finalement toute la surface des sous pixels colorés à la périphérie de l'image latente, faisant ainsi apparaître par transparence, les couleurs de fond du document identitaire. transparent, a latent image consisting of sub-colored pixels and transparent non-colored surfaces, a lasérisable layer, and a laser beam which through the protective layer, forms in the lasérisable layer the gray levels of a final personalized image, the assembly being laminated on a support. The transparent non-colored surfaces of the latent image cover a larger and larger surface, approaching the periphery of the latent image, to finally occupy the entire surface of the colored sub-pixels at the periphery of the latent image, thus making transparent the background colors of the identity document.
Des matériaux lasérisables qui par carbonisation sous l'effet d'un faisceau laser, forment les niveaux de gris de l'image personnalisée, sont, à titre d'exemples non limitatifs, des polycarbonates , certains polychlorures de vinyle traités, des acrylonitrille-butadiène-styrènes traités, ou des poly-téréphtalates d' éthylène traités.  Laserizable materials which by carbonization under the effect of a laser beam, form the gray levels of the customized image are, by way of non-limiting examples, polycarbonates, certain polyvinyl chloride treated, acrylonitrile-butadiene treated styrenes, or treated polyethylene terephthalates.
Les sous pixels colorés sont imprimés par offset, jet d'encre, ou toute autre technique connue de l'homme de l'art. Les zones non colorées transparentes sont situées entre les sous pixels colorés. Les sous pixels colorés, et les zones non colorées transparentes sont organisés en colonnes parallèles, ou en petites surfaces uniformément réparties. L'image latente peut être constituée de triplets ou de quadruplets de sous pixels colorés. La couleur des sous pixels est de préférence choisie parmi les couleurs indépendantes. Les couleurs rouges, vert bleues, ou jaunes, magenta et cyan font partie de ces couleurs.  The colored sub-pixels are printed by offset, inkjet, or any other technique known to those skilled in the art. The unstained transparent areas are located between the colored sub pixels. The colored sub-pixels, and the transparent non-colored areas are organized in parallel columns, or in small uniformly distributed areas. The latent image may consist of triplets or quadruplets of colored sub pixels. The color of the sub-pixels is preferably chosen from among the independent colors. The colors red, green blue, or yellow, magenta and cyan are part of these colors.
Les niveaux de gris de l'image personnalisée, sont obtenus par le degré de noircissement qui est rendu proportionnel à l'énergie déposée par le laser, grâce à un logiciel de linéarisation, connu de l'homme de l'art, ainsi que par des surfaces variables de carbonisation.  The gray levels of the personalized image are obtained by the degree of blackening which is made proportional to the energy deposited by the laser, thanks to linearization software, known to those skilled in the art, as well as by variable areas of carbonization.
La couche lasérisable peut être au dessus ou au dessous de l'image latente.  The laseable layer may be above or below the latent image.
Dans la seconde étape de fabrication, appelée « laminage » la couche de protection, et la couche de matériau lasérisable, sont soudées à chaud sous pression sur le corps du document identitaire. Selon des modes de réalisation particuliers : In the second manufacturing step, called "rolling", the protective layer, and the layer of lasérisable material, are heat-welded under pressure on the body of the identity document. According to particular embodiments:
- la couche lasérisable est obtenue par dopage en surface du corps du document, l'image latente constituée de sous pixels colorés et de zones non colorées  the laserizable layer is obtained by surface doping of the body of the document, the latent image consisting of colored sub-pixels and non-colored areas;
transparentes est imprimée sur la surface dopée du corps du document . transparencies is printed on the doped surface of the body of the document.
- les sous pixels de l'image latente sont imprimés sur la surface de la couche de protection destinée à être laminée sur la couche lasérisable.  the sub-pixels of the latent image are printed on the surface of the protective layer intended to be laminated on the lasérisable layer.
—La couche de protection est en matériaux lasérisables, les sous pixels de l'image latente sont imprimés sur la surface de la couche de protection destinée à être laminée.  The protective layer is made of lasérisable materials, the sub pixels of the latent image are printed on the surface of the protective layer intended to be laminated.
—le corps du document est transparent.  -The body of the document is transparent.
--la couche de protection est formée à chaud lors du laminage, pour lui donner la forme d'un réseau de lentilles permettant au laser de graver sur l'image latente, plusieurs images laser couleur personnalisées distinctes .  --The protective layer is formed hot during rolling, to give it the shape of a network of lenses allowing the laser to burn on the latent image, several separate personalized color laser images.
L' invention concerne également un document comportant une image laser personnalisée aux couleurs dégradées sur sa périphérie réalisée par la mise en œuvre du procédé ci-dessus.  The invention also relates to a document comprising a personalized laser image with degraded colors on its periphery realized by the implementation of the method above.
Ce document comporte une feuille de protection transparente, une image latente constituée d'une matrice de sous pixels colorés et des zones non colorées  This document comprises a transparent protective sheet, a latent image consisting of a matrix of colored sub-pixels and non-colored areas
transparentes, une couche en matériaux lasérisable qui par carbonisation laser forme les niveaux de gris d'une image personnalisée, et un support de document. Les surfaces non colorées transparentes de l'image latente, couvrent une surface de plus en plus grande en se rapprochant de la périphérie de l'image latente, pour occuper finalement toute la surface des sous pixels colorés à la périphérie de l'image latente, faisant ainsi apparaître par transparent, a layer of lasérisable material which by laser carbonization forms the gray levels of a personalized image, and a document medium. The transparent non-colored surfaces of the latent image cover a larger and larger surface, approaching the periphery of the latent image, to finally occupy the entire surface of the colored sub-pixels at the periphery of the latent image, thus showing up by
transparence, les couleurs de fond du document transparency, the background colors of the document
identitaire . La feuille de protection, l'image latente, la couche lasérisable, et le support sont aptes à être laminés ensemble. identity. The protective sheet, the latent image, the lasérisable layer, and the support are able to be laminated together.
Présentation des figures :  Presentation of the figures:
L'invention apparaîtra mieux après la description qui suit, donnée à titre explicatif et nullement  The invention will appear better after the description which follows, given for explanatory purposes and in no way
limitatif. Cette description se réfère aux dessins annexés, sur lesquels : limiting. This description refers to the accompanying drawings, in which:
—La figure 1 montre en plan, les sous pixels selon l'art antérieur d'une image laser couleur.  FIG. 1 shows in plan, the sub-pixels according to the prior art of a color laser image.
—La figure 2 montre en plan, les sous pixels selon un premier mode de l'invention  FIG. 2 shows in plan, the sub-pixels according to a first embodiment of the invention
—La figure 3 montre en plan les sous pixels selon un second mode de l'invention.  FIG. 3 shows in plan the sub-pixels according to a second embodiment of the invention.
Description détaillée : Detailed description :
La figure 1 montre en plan, des sous pixels selon l'art antérieur. On a représenté sur cette figure, l'angle supérieur droit de l'image latente, composée de sous pixels (1), (2), (3), sous forme colonnaire. Ces sous pixels sont colorés. Entre les sous pixels, on trouve des bandes (4) non colorées. Les sous pixels, colorés, sont imprimés sur les motifs ou les couleurs de fond du corps du document identitaire. Par exemple, un motif,  Figure 1 shows in plan subpixels according to the prior art. This figure shows the upper right angle of the latent image, composed of sub pixels (1), (2), (3), in columnar form. These sub pixels are colored. Between the sub-pixels there are uncolored strips (4). The subpixels, colored, are printed on the grounds or the background colors of the body of the identity document. For example, a pattern,
représenté par la ligne courbe (5) n'est perceptible qu'au travers des bandes (4) non colorée. Comme ces bandes sont relativement étroites, le motif (5) n'est pratiquement pas visible . represented by the curved line (5) is noticeable only through the bands (4) not colored. As these strips are relatively narrow, the pattern (5) is practically not visible.
La figure 2, montre en plan, des sous pixels selon l'invention. L'angle supérieur droit du cadre de l'image, est représenté par les axes (6) et (7) . Le premier sous pixel (21), est étroit, et se termine en pointe lorsqu'il approche l'axe (7) . Le second sous pixel (22) est un peu plus large, et le sous pixel (23) est encore plus large. Les surfaces non colorées entre les premiers sous pixels FIG. 2 shows in plan, sub-pixels according to the invention. The upper right corner of the frame of the image, is represented by the axes (6) and (7). The first sub-pixel (21) is narrow, and ends in a point when it approaches the axis (7). The second sub-pixel (22) is a little wider, and the sub-pixel (23) is even wider. Unstained surfaces between first sub pixels
(21) et (22) qui les sépare sont de plus en plus étroite lorsque les sous pixels sont de plus en plus éloignés de l'axe (6) . (21) and (22) that separates them are becoming narrower when the sub-pixels are more and more distant from the axis (6).
Ainsi, le motif (5) imprimé sur le corps du document est visible sur des régions proches des axes (6) et (7), et de moins en moins visible lorsque l'on se rapproche du centre de l'image.  Thus, the pattern (5) printed on the body of the document is visible on regions close to the axes (6) and (7), and less and less visible when approaching the center of the image.
La personnalisation de l'image définitive, s'effectue par le faisceau laser qui par carbonisation, fait apparaître des surfaces non réfléchissantes noires, qui masquent plus ou moins la couleur des sous pixels, pour former les niveaux de gris, de l'image personnalisée définitive. Cette dernière apparaît donc avec des couleurs dégradées sur le pourtour du cadre de l'image, laissant apparaître les motifs ou couleurs du fond du document.  The personalization of the final image, is carried out by the laser beam which by carbonization, reveals black non-reflective surfaces, which more or less mask the color of the sub pixels, to form the gray levels, of the personalized image final. The latter therefore appears with degraded colors around the frame of the image, revealing the patterns or colors of the background of the document.
La figure 3 montre en plan des sous pixels selon un autre mode de l'invention. Les sous pixels (31), ont la forme carrée régulièrement répartie et de tailles  Figure 3 shows sub-pixel planes according to another embodiment of the invention. Subpixels (31) have the regular square shape and sizes
identiques vers le centre de l'image, et leur surface diminue en se rapprochant de l'axe (7). Ils peuvent avoir toute autre forme comme des formes circulaires, identical to the center of the image, and their surface decreases towards the axis (7). They can have any other shape like circular shapes,
hexagonales, rectangulaires, par exemple. Les sous pixels (32), (33), et (34) ont des tailles de plus en plus petites lorsqu'ils se rapprochent de l'axe (6), et aussi lorsqu'ils se rapprochent de l'axe (7), pour atteindre une toute petite taille comme celles du sous pixels (35) . Les espaces qui séparent les sous pixels, sont de plus en plus grands lorsque l'on se rapproche des axes (6) et (7). hexagonal, rectangular, for example. The sub-pixels (32), (33), and (34) have smaller and smaller sizes as they approach the axis (6), and also when they approach the axis (7) to reach a very small size like those of the sub pixels (35). The spaces separating the sub-pixels, are larger and larger when one approaches the axes (6) and (7).
Ainsi, le motif (5) imprimé sur le corps du document apparaît sur la périphérie de l'image personnalisée. Thus, the pattern (5) printed on the body of the document appears on the periphery of the personalized image.

Claims

REVENDICATIONS
1. Procédé de formation d'images laser couleur aux couleurs dégradées sur sa périphérie, à partir d'un assemblage comprenant une couche de protection A method of forming degraded color laser images on its periphery from an assembly comprising a protective layer
transparente, une image latente constituée de sous pixels colorés et de surfaces non colorées transparentes, . une couche lasérisable, et un faisceau laser qui au travers de la couche de protection, forme dans la couche lasérisable les niveaux de gris d'une image personnalisée définitive, l'ensemble étant laminé sur un support, caractérisé en ce que les surfaces non colorées transparentes de l'image latente, couvrent une surface de plus en plus grande en se rapprochant de la périphérie de l'image latente, pour occuper finalement toute la surface des sous pixels colorés à la périphérie de l'image latente, faisant ainsi apparaître par transparence, les couleurs de fond du document identitaire. transparent, a latent image consisting of colored subpixels and transparent unstained surfaces,. a lasérisable layer, and a laser beam which, through the protective layer, forms in the laserizable layer the gray levels of a definitive personalized image, the assembly being laminated on a support, characterized in that the non-colored surfaces transparent images of the latent image, cover an increasingly larger surface by approaching the periphery of the latent image, to finally occupy the entire surface of the colored sub-pixels at the periphery of the latent image, thus showing through transparency, the background colors of the identity document.
2. Procédé de formation d' images laser couleur aux couleurs dégradées sur sa périphérie, selon la revendication 1, caractérisée en ce que les sous pixels ont la forme de lignes ou de colonnes dont la largeur se réduit en se rapprochant des axes (6) et (7) .  2. A method of forming color laser images with degraded colors on its periphery, according to claim 1, characterized in that the sub-pixels have the form of rows or columns whose width is reduced as it approaches the axes (6). and (7).
3. Procédé de formation d'images laser couleur aux couleurs dégradées sur sa périphérie, selon la revendication 1, caractérisée en ce que les sous pixels ont la forme de carrés, de rectangles, d'hexagones, de cercle, dont la surface se réduit en se rapprochant des axes (6) et (7) .  3. A method of forming color laser images with degraded colors on its periphery, according to claim 1, characterized in that the sub-pixels have the shape of squares, rectangles, hexagons, and a circle whose surface is reduced. approaching the axes (6) and (7).
4. Document comportant des images laser couleur personnalisées, réalisé par la mise en œuvre du procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu' il comporte une couche de protection transparente, une image latente constituée d'une matrice de sous pixels colorés et de zones non colorées, une couche en matériaux lasérisable étant au moins partiellement carbonisée par un rayonnement laser, et un support de document, les zones non colorées couvrent une surface de plus en plus grande en se rapprochant de la périphérie de l'image latente, pour occuper finalement toute la surface des sous pixels colorés à la périphérie de l'image latente, faisant ainsi apparaître par transparence, les couleurs de fond du document 4. Document comprising personalized color laser images, produced by the implementation of the method according to any one of the preceding claims, characterized in that it comprises a transparent protection layer, a latent image consisting of a sub-matrix. colored pixels and non-colored areas, a layer of lasérisable materials being at least partially carbonized by a laser radiation, and a document support, the uncolored areas cover a larger and larger surface by approaching the periphery of the latent image, to finally occupy the entire surface of the sub-colored pixels at the periphery of the latent image, thus making transparent the background colors of the document
identitaire, la feuille de protection, l'image latente, la couche lasérisable, et le support sont aptes à être laminés ensemble. identity, the protective sheet, the latent image, the lasérisable layer, and the support are able to be laminated together.
5. Document selon la revendication 4, dans lequel les sous pixels ont la forme de lignes ou de colonnes dont la largeur se réduit en se rapprochant des axes (6) et (7).  5. Document according to claim 4, wherein the sub-pixels are in the form of rows or columns whose width is reduced by approaching the axes (6) and (7).
6. Document selon la revendication 4, dans lequel les sous pixels ont la forme de carrés, de rectangles, d'hexagones, de cercles, dont la surface se réduit en se rapprochant des axes (6) et (7) .  6. Document according to claim 4, wherein the sub-pixels have the form of squares, rectangles, hexagons, circles, the surface of which is reduced by approaching the axes (6) and (7).
PCT/FR2013/050840 2012-04-24 2013-04-17 Method for forming a color laser image having degraded colors on the edges thereof, and resulting document WO2013160583A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1201191A FR2989626B1 (en) 2012-04-24 2012-04-24 METHOD FOR FORMING LASER COLOR-COLORED LASER IMAGE ON ITS PERIPHERY AND DOCUMENT THUS REALIZED
FR1201191 2012-04-24

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100578A (en) 1953-05-26 1955-09-21 Perfogit Process for the preparation of pure polymerization products of 11-aminoundecanoic acid
FR1103919A (en) 1954-07-08 1955-11-08 Anciens Etablissements Andre C Order of revolver boxes for looms
WO2011124774A1 (en) 2010-04-07 2011-10-13 Jean Pierre Lazzari Method for customizing latent embedded images and document thus produced

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100578A (en) 1953-05-26 1955-09-21 Perfogit Process for the preparation of pure polymerization products of 11-aminoundecanoic acid
FR1103919A (en) 1954-07-08 1955-11-08 Anciens Etablissements Andre C Order of revolver boxes for looms
WO2011124774A1 (en) 2010-04-07 2011-10-13 Jean Pierre Lazzari Method for customizing latent embedded images and document thus produced

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FR2989626B1 (en) 2014-06-27

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