EP3291994B1 - Dispositif de personnalisation et procédé de personnalisation d'un document - Google Patents

Dispositif de personnalisation et procédé de personnalisation d'un document Download PDF

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Publication number
EP3291994B1
EP3291994B1 EP16723051.5A EP16723051A EP3291994B1 EP 3291994 B1 EP3291994 B1 EP 3291994B1 EP 16723051 A EP16723051 A EP 16723051A EP 3291994 B1 EP3291994 B1 EP 3291994B1
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EP
European Patent Office
Prior art keywords
document
graphic
pixels
image
geometric shape
Prior art date
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Active
Application number
EP16723051.5A
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German (de)
English (en)
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EP3291994A1 (fr
Inventor
Roland Dr. Gutmann
Ralf Grieser
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Bundesdruckerei GmbH
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Bundesdruckerei GmbH
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Publication of EP3291994A1 publication Critical patent/EP3291994A1/fr
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Classifications

    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a personalization device for personalizing a document with a graphic and to a method for personalizing a document by applying a graphic to such a personalization device.
  • a graphic such as a portrait of the document holder can be applied to the document for this purpose.
  • the technique of laser engraving has proven itself. It will be in the document blank color pigments or pigments of different shades of gray produced by bombardment of a photosensitive material with laser light. In the photosensitive material, a material conversion takes place, whereby individual pixels can be generated at the point of impact of the laser.
  • a graphic by laser engraving a graphic can first be rasterized, with the individual pixels of the graphic subsequently being transmitted to the document by individual laser pulses or a sequence of laser pulses.
  • a polycarbonate layer or a polyvinyl chloride may be applied to the document, which is admixed with an additive which consists essentially of carbon chains. If this layer is now bombarded with a laser pulse, individual molecular chains can break up and carbon can be released. This manifests itself in a blackening of the layer in the region of the region hit by the laser pulse. In general, the generated gray level depends on the pulse energy.
  • EP2851207 discloses a personalization device having a beam source for generating laser pulses for personalizing a document with a graphic, the graphics including pixels, and wherein the personalization device is adapted to image the pixels of the graphic as pixels by applying the laser pulses to the document to form an image to create the graphic on the document.
  • a “document” can be a value or security document.
  • a “document” is understood as meaning paper-based and / or plastic-based documents, such as identity documents, identity cards, visas and driving licenses, vehicle registration documents, vehicle documents, company identity cards, health cards or other ID documents as well as chip cards, payment means, in particular banknotes, Bank cards and credit cards, bills of lading or other credentials.
  • a "document” is understood to mean, in particular, a portable electronic device which has at least one data memory for storing an attribute and a communication interface for reading out the attribute.
  • the document has a secure memory area for storing the at least one attribute, in order to prevent the attribute stored in the memory area from being altered in an unauthorized manner or read out without the authorization required therefor.
  • the invention in a first aspect, relates to a personalization device having an optical arrangement and a beam source for generating laser pulses.
  • the personalization device is designed to personalize a document with a graphic by means of the laser pulses.
  • the graphic includes a plurality of pixels.
  • the personalization device is therefore designed to image the pixels of the graphic as pixels by applying a photosensitive layer of the document with the laser pulses to the document to produce an image of the graphic on the document.
  • the laser pulses are generated by the personalization device such that a first subset of pixels from the plurality of pixels after imaging on the document has a first geometric shape, while at least a second subset of pixels from the plurality of pixels after imaging on the document geometric shape, which differs from the first geometric shape.
  • the device is designed to direct laser pulses generated by the beam source through the optical arrangement of the personalization device to the position of a pixel.
  • the optical arrangement is designed to adapt the transverse intensity profile of the laser pulse of the respective geometric shape of the pixel.
  • the beam source of the personalization device is preferably a pulsed laser source.
  • pulsed gas lasers, dye lasers or solid-state lasers can be used for this purpose.
  • the energy of a laser pulse generated by the beam source is sufficiently large to produce a pixel in the photosensitive layer of the document.
  • the laser source must be capable of delivering laser light of a wavelength suitable for producing pixels in the photosensitive layer of the document.
  • Embodiments could have the advantage that the adjustment of the transverse intensity profile of the laser pulse to a desired geometric shape of the pixel to be generated at different points of the imaged graphic pixels can be generated, which in their geometric shape of the usually round pixels of a laser engraved image differ. In this case, such a geometric shape due to the manipulated Intensity profiles of the laser pulse by a single laser pulse or a sequence of identical laser pulses are generated on the document.
  • Such a targeted variation of the geometric shape of the pixels produced on the document could be used to secure the forgery of the document.
  • a laser engraved graphic can be manipulated essentially by adding pixels or by additionally blackening existing pixels.
  • pixels subsequently added to a graphic have a round shape because a round intensity profile can be more easily generated in a laser than another defined geometric shape, such as a rectangle or a line.
  • another defined geometric shape such as a rectangle or a line.
  • the optical arrangement includes a bundle of photoconductive fibers and a coupling optics for coupling a laser pulse into the photoconductive fibers.
  • a pixel is then composed of a plurality of sub-pixels, the geometric shape of the pixel being determined by the arrangement of the sub-pixels, the light-conducting fibers being adapted to image the sub-pixels of the pixel by imaging the laser pulse on the document to create.
  • a subpixel is preferably generated by the laser pulse coupled out of a single fiber on the document.
  • the light-conducting Fibers may, for example, be hollow core fibers or full glass fibers made of quartz glass.
  • an array of lenses can be used, which focuses an incident radiation on the fiber facets of the individual fibers of the fiber bundle.
  • Embodiments could have the advantage that the ends of the light-conducting fibers of the fiber bundle, at which the incident laser light emerges from the fibers, could easily be aligned with different points of the document or picture elements of the graphic.
  • a rasterized graphic can be transferred to a document in a simple manner by aligning the fiber ends of the fiber bundle successively with the individual pixels of the graphic to be applied.
  • a coupling optics matched to the fiber bundle can greatly increase the efficiency with which the incident laser light is coupled into the fibers.
  • the bundle of photoconductive fibers is an image-receiving optical fiber bundle.
  • an image-retaining optical fiber bundle is understood as an optical fiber bundle which is capable of faithfully reproducing the transverse intensity profile of an incident laser pulse onto the surface of the document following propagation of the laser pulse along the optical fiber bundle.
  • Embodiments could have the advantage that the geometric shape of the pixel to be generated can already be determined before the coupling into the light-conducting fibers.
  • the beam source can be made by suitable optics to emit laser pulses in a particular transverse electromagnetic mode. It is possible to produce a transverse intensity profile which deviates significantly from the usual round shape of a laser pulse in a mixture of different transverse electromagnetic modes. This intensity profile could then be imaged onto the pixel of the document by the fibers of the image-retaining optical fiber bundle To produce pixel with a defined geometric shape, which differs from the usually round shape of a pixel.
  • the device includes at least one mask with at least one opening.
  • the mask is arranged between the beam source and the optical arrangement.
  • the shape of the at least one opening of the mask corresponds to the geometric shape of the image point to be generated on the document.
  • the mask could be a blackened metal plate provided with a plurality of recesses.
  • the mask could be placed close to the fiber facets of the fiber bundle so that the openings of the mask coincide with individual fibers of the bundle of photoconductive fibers. If a laser pulse generated by the beam source then falls on the mask, laser light is coupled only into the fibers of the fiber bundle, the facet of which is in registration with an opening in the mask. Thus, by the mask, a coupling of laser pulses into certain fibers of the fiber bundle can be prevented.
  • the mask can also be an electromechanical mask.
  • a projection device can be arranged between the beam source and the optical arrangement, which uses electromechanical components to image a round laser pulse onto the fiber facets of individual fibers of the optical arrangement.
  • an arrangement of a plurality of movable micromirrors can be used.
  • a selective illumination of individual fibers of the optical arrangement can be achieved.
  • the individual micromirrors are controllable in their orientation by an electromechanical suspension.
  • Embodiments of the invention may have the advantage that by using a mask which excludes certain fibers of the fiber bundle from illumination by the laser pulse or which only illuminates certain fibers of the fiber bundle, a pattern can be easily produced can be burned by imaging the fiber ends on the photosensitive layer of the document in the pixel of the graph.
  • the mask used can be adapted accordingly for various desired geometric shapes of a pixel to be generated.
  • the fiber bundle and its input and output optics can remain the same for all masks.
  • the at least one mask is arranged in a magazine, wherein the magazine is adapted to position or remove a mask between the beam source and the fiber bundle.
  • Embodiments could have the advantage that by using masks, which are arranged in a magazine, a fast switching between different geometric shapes of the generated pixels is possible. For example, a new mask can be placed in front of the facet of the fiber bundle for each individual pixel so that the pixel of the graphic generated with the next laser pulse receives the geometric shape defined by the mask.
  • the ends of the optical fibers of the fiber bundle are arranged in a plane in the form of the geometric shape of the pixel.
  • an initially round fiber bundle could be arranged so that the ends of the photoconductive fibers form a cross shape or circular shape or a rectangular shape in a plane.
  • Embodiments could have the advantage that by appropriately arranging the photoconductive fibers, all the fibers can contribute to the formation of the pixel.
  • the embodiment is characterized by a low power loss, since almost all the laser energy, which is coupled into the fibers, is also used to generate the pixel.
  • the optical arrangement further comprises imaging optics for imaging the fiber ends on the document.
  • the coupling optics, the fiber bundle and the imaging optics are monolithic.
  • a monolithic design is understood to mean an embodiment in which the relative position of the coupling optics to the fiber facets of the fiber bundle and the relative position of the imaging optics to the fiber ends of the fiber bundle are fixed and can not be changed.
  • Embodiments could have the advantage that the optical arrangement only has to be adjusted once and then the adjustment of the coupling optics and the imaging optics can be maintained for all further uses of the optical arrangement.
  • the coupling optics can be adjusted so that a collimated laser pulse with the greatest possible Einkoppeleffzienz is coupled into the fibers of the fiber bundle.
  • the imaging optics can then be placed in front of the fiber ends of the fiber bundle such that they image the laser pulses coupled out of the fibers with a defined size onto the surface of the document for a defined distance between the imaging optics and the document surface. Overall, the handling of the personalization device can be simplified.
  • a pixel of the graphic is imaged onto the document as a pixel by exposing the photosensitive layer of the document to a single laser pulse.
  • the amount of energy that is introduced by the laser pulse into the document must be adjusted so that the pixel produced has the desired gray level or brightness level.
  • Embodiments could have the advantage that by generating a pixel by a single laser pulse, rapid generation of the graphics can be ensured, provided that the beam source can be switched quickly in its output power. Furthermore, it could be ensured that the geometric shape of the generated pixel with respect to a pixel, which was generated by a sequence of laser pulses, is not blurred by any vibrations within the personalization device.
  • a pixel of the graphic is imaged by impinging the photosensitive layer of the document with a plurality of laser pulses on the document as a pixel, each of the laser pulses introducing the same amount of energy into the photosensitive layer of the document.
  • Embodiments could have the advantage that one does not have to switch the laser or the beam source between the generation of pixels of different brightness in its output power. Rather, the same pulse energy can always be used for each pixel regardless of its gray level. The gray level would be defined only by the number of laser pulses delivered to the pixel.
  • the pixels of the graphic on the document comprise a color of a plurality of color values.
  • the color values are each assigned a geometric shape of the pixel.
  • the pixels of the graphic on the document on a gray value of a plurality of gray values, wherein the gray values each associated with a geometric shape of the pixel.
  • the FIG. 1 shows a schematic representation of a graphic 100, which for personalization purposes on a document 102 (not shown here) can be applied.
  • the graphic 100 is a passport photograph in the embodiment shown here.
  • a fingerprint of the document holder could also be applied to the document 102 in an analogous method.
  • the output graphic is first rasterized. This means that a raster is placed over the graphic 100 and a brightness or color value is defined for each point of the raster, so that the totality of the resulting pixels in the raster results in the most accurate approximation of the output graphic 100.
  • FIG. 1 a detail 104 from the graphic 100 after the raster process is shown with an enlarged representation. It is a field of size 8 x 8 pixels from the area of the pupil of the right eye.
  • the individual pixels 106 of the image section are assumed to be round pixels. This is due to the fact that laser pulses with a round transverse intensity distribution are usually used in particular when transferring a graphic 100 to a document 102 by means of laser engraving. Such a round profile can be easily generated by superposition of a plurality of transverse electromagnetic modes.
  • the graphic 100 can then be imaged on the surface of the document 102 in good approximation to the original graphic.
  • the pixels 106 or at least a subset of the individual pixels 106 of the graphic 100 applied to the document have a substructure or geometric shape deviating from a round shape from sub-pixels 108.
  • FIG. 1 are in FIG. 1 from the bottom row of pixels from the section 104 two pixels 110 and 112 selected and enlarged.
  • the pixel 110 is made up of 13 sub-pixels 108.
  • the sub-pixels 108 are arranged within the pixel 110 in a defined geometric pattern or a geometric shape.
  • the brightness or gray value of the sub-pixels 108 of the pixel 110 corresponds to the brightness or gray-scale value of the pixel 110 shown in the detail 104.
  • a pixel in the sense of the invention is a part of the output graphic 100, which is loaded into the personalization device (200).
  • the pixels of the source graphic 100 are then mapped onto the document 102, with a pixel 106 being created on the document 102 for each pixel.
  • a pixel 106 in turn is made up of sub-pixels 108, the sub-pixels 108 result in the geometric shape of the pixel 106 on the document 102.
  • a pixel 106 were subsequently blackened in a graphic 100 in which the pixels are constructed from a geometrical arrangement of subpixels, or an additional pixel inserted, this would normally be done by applying a laser pulse to the document or the photosensitive layer has a round intensity profile.
  • a manipulation would then be easily recognizable, since the actually expected substructure of the pixel 106 no longer matches the original substructure.
  • a subsequent manipulation of the graphic 100 on the document 102 can be detected in a simple manner.
  • a pixel 106 within a laser-engraved graphic 100 has a size of, for example, 0.1 mm.
  • the sub-pixels 108 in the embodiment shown here may, for example, have a size of not more than 20 ⁇ m. Since, in a graphic element having a sub-pixel sub 108 structure on the order of a few 10 ⁇ m, the substructure can not be resolved by the human eye, a pixel 106 appears to a viewer like a uniformly colored pixel. However, it is possible to make visible the substructure of a pixel 106 by magnification, for example, with a magnifying glass to control the graph on subsequent manipulations.
  • the pixels 106 it is possible for different pixels 106 to define different geometric shapes or arrangement of sub-pixels. So in the in Fig.1 represented image section of the geometric shape or the arrangement of the sub-pixels 108 of the pixel 112 from the geometric shape of the pixel 110 from. In this case, in both pixels, the brightness of the sub-pixels 108 is equal to the brightness of the pixel, which is shown in the enlarged section 104.
  • the sub-pixels 108 of a pixel 106 have the same brightness level as the desired pixel 106
  • an assignment of the brightness level of a pixel to the geometric shape or arrangement of the sub-pixels 108 of a pixel 106 would be realized.
  • the FIG. 2 a) is a schematic representation of a personalization device 200 for personalizing a document 102 with a graphic 100 (not shown here).
  • the personalization device 200 basically consists of a beam source 202 and an optical arrangement 204.
  • the beam source 202 can be, for example, a pulsed solid-state laser system, such as an Nd: YAG laser or a Ti: Sa laser or a (fiber-reinforced diode laser (
  • the optical arrangement 204 is constructed in the embodiment shown in Figure 2 a) from a collimating optics 206 and a fiber bundle 208 and an imaging optics 210.
  • the following will be now explains how a generated by the beam source 202 laser pulse for generating a pixel 106 is imaged on the document 102.
  • a single laser pulse is first generated by the beam source 202.
  • a laser pulse may be a light pulse of pulse energy between 0.01 mJ and 1 mJ and a pulse width of about 3 ns to 250 ns. In this case, such a pulse peak powers of about 10 kW to 50 kW.
  • the wavelength of the light emitted in this case must be adapted to the requirements of the photosensitive layer of the document 102. In the case of laser engraving processes, wavelengths in the near infrared are usually approximately at 1064 nm.
  • the light pulse thus generated by the beam source 202 is first expanded and imaged by the collimating optics 206 onto the input facets of the fibers 212 of the fiber bundle 208.
  • the collimating optics 206 is dimensioned so that all fibers of the fiber bundle 208 are uniformly acted upon by the laser pulse with electromagnetic radiation. Furthermore, in front of the fiber bundle 208, a coupling-in optical system, such as a lens array (not shown here), can be arranged, which injects the incident laser radiation into the individual fibers of the fiber bundle 208 with high efficiency.
  • a coupling-in optical system such as a lens array (not shown here) can be arranged, which injects the incident laser radiation into the individual fibers of the fiber bundle 208 with high efficiency.
  • FIG. 2 b) is now exemplified a frontal view of a fiber bundle 208 consisting of three individual fibers 212 shown.
  • the individual fibers 212 of the fiber bundle 208 are now rearranged.
  • the individual fibers 212 which are initially arranged in a triangle, are arranged in a row on the right-hand side of the fiber bundle 208 on the outcoupling side.
  • the laser light coupled out of this row of fiber facets is subsequently imaged by the imaging optics 210 onto the surface or the photosensitive layer of the document 102.
  • the imaging optics are preferably designed so that the relative position of the individual laser pulses coupled out of the fibers 212 does not change due to the imaging of the fiber ends on the surface of the document 102.
  • a pixel is generated, which is made up of three superimposed sub-pixels 108.
  • FIG. 2c a further variant is shown, in which the fiber bundle 208 is constructed from a total of seven individual fibers 212, which are arranged in a circle. By rearranging the fiber ends, a triangular structure is created here, which is subsequently imaged onto the document 102 by the imaging optics 210. Thus, if using a fiber bundle, as it was in FIG. 2c) is generated, a pixel 106, which is constructed from a triangular arrangement of sub-pixels 108.
  • FIG. 2 d schematically a fiber bundle 208 consisting of 19 individual fibers 212 shown. In doing so, according to FIG.
  • the individual fibers 212 of the fiber bundle 208 are arranged such that on the right side of the fiber bundle 208, the fiber facets take the form of an smiley.
  • Such a geometric pattern can also be imaged by the imaging optics 210 on the document 102, whereby a pixel 106 is generated, which in its substructure represents a smiley composed of sub-pixels 108.
  • FIG. 3 a) is a further schematic representation of a personalization device 200, which basically analogous to the personalization device 200 of FIG. 2 a) is constructed.
  • the personalization device 200 shown differs in that between the collimating optics 206 and the fiber bundle 208, a mask 214 is arranged.
  • the mask may, for example, be a blackened metal plate which has recesses at defined positions. In this case, the position of the recess can be selected so that upon application of the fiber bundle 208 with a laser pulse only certain fibers 212 of the fiber bundle 208 are exposed to laser light. This is exemplary in FIG. 3b) shown. As in FIG.
  • FIG. 3 a personalization device 200 shown a magazine or a changing system having a plurality of masks 214. This is preferably designed so that the masks 214 can be inserted by the changing system into the beam path of the laser pulse generated by the beam source 202 or removed therefrom. Thus, it becomes possible to switch between different generated pixels or different substructures in rapid succession. This would make it possible to select a different geometric shape for each pixel 106 when creating a graphic 100 on the document 102.

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Claims (13)

  1. Dispositif de personnalisation (200) doté d'un montage optique (204) et d'une source de rayonnement (202) pour la génération d'impulsions laser destinées à la personnalisation d'un document (102) avec un graphisme (100),
    le graphisme (100) contenant une multiplicité de pixels,
    le dispositif de personnalisation (200) étant prévu pour reproduire sur le document (102) les pixels du graphisme (100) sous forme de points d'image (106) par la soumission d'une couche photosensible du document (102) aux impulsions laser afin de générer une reproduction du graphisme (100) sur le document (102),
    une première partie de points d'image (106) parmi la multiplicité des points d'image (106) présentant une première forme géométrique,
    au moins une deuxième partie de points d'image (106) parmi la multiplicité des points d'image (106) présentant une forme géométrique, laquelle se différencie de la première forme géométrique,
    le dispositif (200) étant prévu pour dévier des impulsions laser générées par la source de rayonnement (202) sur la position d'un point d'image (106) par le montage optique (204),
    le montage optique (204) étant prévu pour adapter le profil d'intensité transversal de l'impulsion laser à la forme géométrique respective du point d'image (106).
  2. Dispositif de personnalisation (200) selon la revendication 1, dans lequel le montage optique (204) contient un faisceau (208) de fibres conductrices de lumière (212) et un système optique de couplage pour le couplage de l'impulsion laser dans les fibres conductrices de lumière (212), un point d'image (106) est construit à partir d'une multiplicité de sous-pixels (108), la forme géométrique du point d'image (106) étant déterminée par l'agencement des sous-pixels (108), les fibres conductrices de la lumière (212) étant prévues pour générer les sous-pixels (108) du point d'image (106) par la reproduction de l'impulsion laser sur le document (102).
  3. Dispositif de personnalisation (200) selon la revendication 2, dans lequel il s'agit d'un faisceau de conducteurs de lumière préservant l'image dans le cas du faisceau (208) à base de fibres conductrices de lumière (212).
  4. Dispositif de personnalisation (200) selon l'une des revendications précédentes, où le dispositif de personnalisation (200) contient au moins un masque (214) avec au moins un orifice, le masque (214) étant disposé entre la source de rayonnement (202) et le montage optique (214), la forme de l'au moins un orifice du masque (214) correspondant à la forme géométrique du point d'image (106).
  5. Dispositif de personnalisation (200) selon la revendication 4, dans lequel l'au moins un masque (214) est disposé dans un magasin, le magasin étant prévu pour positionner ou enlever un masque (214) entre la source de rayonnement (202) et le montage optique (204).
  6. Dispositif de personnalisation (200) selon la revendication 2, dans lequel les extrémités des fibres conductrices de lumière (212) du faisceau de fibres (208) sont disposées dans un plan sous la forme de la forme géométrique du point d'image (106).
  7. Dispositif de personnalisation (200) selon l'une des revendications précédentes, dans lequel il s'agit d'un réseau de lentilles dans le cas du système optique destiné au couplage.
  8. Dispositif de personnalisation (200) selon l'une des revendications précédentes 2 à 7, dans lequel le montage optique (204) comprend en outre un système optique de reproduction (210) pour la reproduction des extrémités de fibres sur la couche photosensible du document (102), le système optique de couplage, le faisceau de fibres (208) et le système optique de reproduction (210) étant conçus de manière monolithique.
  9. Dispositif de personnalisation (200) selon l'une des revendications précédentes, dans lequel un pixel du graphisme (100) est reproduit sous forme de point d'image (106) sur le document (102) par l'application d'une impulsion laser unique sur la couche photosensible du document (102).
  10. Dispositif de personnalisation (200) selon l'une des revendications précédentes 1 à 8, dans lequel un pixel du graphisme (100) est reproduit sous forme de point d'image (106) sur le document (102) par l'application d'une multiplicité d'impulsions laser sur la couche photosensible du document (102), chacune des impulsions laser apportant la même quantité d'énergie dans la couche photosensible du document (102).
  11. Procédé de personnalisation d'un document (102) par l'application d'un graphisme (100) avec un dispositif de personnalisation (200) selon l'une des revendications précédentes par :
    • le chargement du graphisme (100) dans le dispositif de personnalisation (200), le graphisme (100) contenant une multiplicité de pixels,
    • la représentation point d'image par point d'image des pixels du graphisme (100) sous forme de points d'image (106) sur le document (102) par la soumission d'une couche photosensible du document (102) à des impulsions laser de sorte qu'une représentation du graphisme (100) est créée sur le document (102),
    une première partie de points d'image (106) du graphisme (100) sur le document (102) présentant une première forme géométrique à partir de la multiplicité des points d'image (106) du graphisme (100),
    au moins une autre partie de points d'image (106) du graphisme (100) sur le document (102) présentant une forme géométrique à partir de la multiplicité des points d'image (106), laquelle se différencie de la première forme géométrique.
  12. Procédé selon la revendication 11, dans lequel des points d'image (106) du graphisme (100) sur le document (102) présentent une couleur à base d'une multiplicité de valeurs de couleurs, où chaque fois, une forme géométrique du point d'image (106) est associée aux valeurs de couleurs.
  13. Procédé selon la revendication 11, dans lequel des points d'image du graphisme sur le document présentent une valeur de gris à partir d'une multiplicité de valeurs de gris, où, chaque fois, une forme géométrique du point d'image est associée aux valeurs de gris.
EP16723051.5A 2015-05-05 2016-05-03 Dispositif de personnalisation et procédé de personnalisation d'un document Active EP3291994B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015208297.0A DE102015208297A1 (de) 2015-05-05 2015-05-05 Personalisierungsvorrichtung und Verfahren zur Personalisierung eines Dokuments
PCT/EP2016/059856 WO2016177708A1 (fr) 2015-05-05 2016-05-03 Dispositif de personnalisation et procédé de personnalisation d'un document

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US6909553B2 (en) * 2001-08-03 2005-06-21 Mems Optical, Inc. Multi-aperture beam integrator/method producing a continuously variable complex image
EP2147799A1 (fr) * 2008-07-21 2010-01-27 Gemplus Sécurisation d'une image imprimée au moyen d'un faisceau laser
US8314828B2 (en) * 2009-10-18 2012-11-20 Gemalto Sa Personalization of physical media by selectively revealing and hiding pre-printed color pixels
DE102010010072A1 (de) * 2010-02-26 2011-09-01 Bundesdruckerei Gmbh Markierungsvorrichtung und Verfahren zum farbigen Markieren von Wert- oder Sicherheitsdokumenten
FR2971972B1 (fr) * 2011-02-28 2013-03-08 Jean Pierre Lazzari Procede de formation d'une image laser couleur a haut rendement reflectif et document sur lequel une image laser couleur est ainsi realisee
EP2747406A1 (fr) * 2012-12-21 2014-06-25 Gemalto SA Procédé d'intégration de données auxiliaires dans une image, procédé de lecture de données auxiliaires enfouies dans une image et support personnalisé par exposition sélective à des photons
EP2851207B1 (fr) * 2013-07-25 2015-12-30 Oberthur Technologies Personnalisation de documents

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DE102015208297A1 (de) 2016-11-10
EP3291994A1 (fr) 2018-03-14

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