EP3034318A1 - Personnalisation de supports physiques révélant et masquant de façon sélective des pixels de couleur préimprimés - Google Patents

Personnalisation de supports physiques révélant et masquant de façon sélective des pixels de couleur préimprimés Download PDF

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Publication number
EP3034318A1
EP3034318A1 EP14199021.8A EP14199021A EP3034318A1 EP 3034318 A1 EP3034318 A1 EP 3034318A1 EP 14199021 A EP14199021 A EP 14199021A EP 3034318 A1 EP3034318 A1 EP 3034318A1
Authority
EP
European Patent Office
Prior art keywords
photon
sub
print
pixel
pixels
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.)
Withdrawn
Application number
EP14199021.8A
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German (de)
English (en)
Inventor
Raphael Mourand
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.)
Thales DIS France SA
Original Assignee
Gemalto SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gemalto SA filed Critical Gemalto SA
Priority to EP14199021.8A priority Critical patent/EP3034318A1/fr
Priority to PCT/EP2015/076808 priority patent/WO2016096285A1/fr
Priority to EP15797986.5A priority patent/EP3233515B1/fr
Publication of EP3034318A1 publication Critical patent/EP3034318A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B41M3/144—Security printing using fluorescent, luminescent or iridescent 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
    • 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
    • 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
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • 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
    • G07D7/06—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 wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/1205—Testing spectral properties
    • 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
    • B42D25/309—Photographs

Definitions

  • the present invention relates generally to personalization of secure documents and more particularly to personalization by producing an image on a document.
  • identity cards may need to be produced for very large population pools, yet every individual card has to uniquely identify the person carrying the card.
  • the high-volume manufacturing phase may be performed on relatively expensive equipment because the equipment cost may be amortized over very large production runs.
  • the end-user personalization may be preferably carried out at customer locations in relatively low volumes, thus, requiring much lower equipment costs.
  • One very important mechanism for tying an individual to an identity object is the placement of a person's photograph on the identity object.
  • Driver's licenses, passports, identity cards, employee badges, etc. all usually bear the image of the individual to whom the object is connected.
  • FIG. 1 is a perspective-exploded view of the various layers that make up such a prior art identity card 50.
  • the identity card 50 may include a laser-engravable transparent polycarbonate layer 57. By selectively exposing an image area on the card with a laser, specific locations in the polycarbonate layer 57 may be rendered black, thereby producing a gray-scale image.
  • PC ID products have been personalized using laser-engraving technology. This is based on a laser beam heating carbon particles inside specific polycarbonate layers to the extent that the polycarbonate around the particle turns black. While the particles could be chosen to be something else than carbon, it is the intrinsic property of polycarbonate that creates the desired contrast and number of gray levels to produce, for example, a photograph. The gray tone is controlled by the laser power and speed of scanning across the document. This technology is standard on the ID market. However, a limitation of this technique is that color images may not be produced in that manner.
  • D2T2 Dye Diffusion Thermal Transfer
  • a drawback to surface printed color personalization is that it is not as secure as the laser engraved photos and data that are situated inside the polycarbonate layer structure as illustrated in Figure 1 .
  • a color image may be produced using digital printing before the product is collated. This allows for high quality images placed on identity cards. Yet this technology has many drawbacks: the personalization and card body manufacturing must happen in the same premises, which furthermore typically have to be in the country of document issuance because governmental authorities dislike sending civil register data across borders, the color printed photographs prevent the PC layers from fusing to each other, and if any of the cards on a sheet is maculated in further production steps, the personalized card must be reproduced from the beginning of the process leading to a highly complicated manufacturing process.
  • US 8314828 in the name of the assignee of the present patent application discloses a method for personalization of an identity card by producing a color image thereon by selectively exposing photon-sensitive layers on the card to change between transparent and opaque thereby revealing opaque colors from the photon-sensitive layer.
  • the content of US 8314828 is incorporated by reference to the present application.
  • the invention relates to a method for producing a colored fluorescent image when exposed to UV light in an image area on a physical media, comprising:
  • the invention also relates to a method for producing on a physical media a first image in a first image area and a second image in a second image area, where the first image is a colored image under exposure to visible light and the second image is a gray image under exposure to visible light and a colored image under exposure to UV light, comprising:
  • a first photon-sensitive layer is visually opaque and transforms into visually transparent upon exposure to photons of a first selected wavelength and intensity; wherein a second photon-sensitive layer is visually transparent and transforms into visually opaque upon exposure to photons of a second selected wavelength and intensity; wherein a first selected portion of the first photon-sensitive layer is exposed to reveal sub-pixels on the surface or any photon-sensitive layers between the print-pixel pattern located on the surface and the first photon-sensitive layer; and wherein a second selected portion of the second photon-sensitive layer is exposed to occlude sub-pixels on the surface and any photon-sensitive layers between the surface the second photon- sensitive layer.
  • the at least one photon-sensitive layer transforms from opaque white into visually transparent.
  • the second photon-sensitive layer transforms from visually transparent into opaque black.
  • the second photon-sensitive layer may be positioned in between the first photon-sensitive layer and the print-pixel pattern located on the substrate surface.
  • the method may comprise:
  • the first photon-sensitive layer is for example a white bleachable ink.
  • the method may further comprise a step of fixing the selected exposed portions of the photon-sensitive layers by an additional exposure step.
  • the method may further comprise a step of fixing the selected exposed portions of the photon-sensitive layer by exposing a portion of the image area of the physical media to UV light.
  • the method may comprise a step of fixing the selected subset of sub-pixels of the photon-sensitive layer by exposing the selected subset of sub-pixels to heat.
  • the alteration of a photon-sensitive layer is due to heat produced by photon exposure.
  • the altering step may comprise revealing sub-sub- pixels of individual sub-pixels thereby providing varying fluorescent color intensities for different sub-pixels in the pixel pattern.
  • the step of altering the state of at least one of the at least one photon- sensitive layers may comprise the step of revealing a subset of the sub-sub-pixels of any sub-pixel.
  • the method further comprises the step of determining which sub-sub-pixels to reveal from a corresponding pixel in a digital image.
  • the step of determining which sub-sub-pixels to reveal is for example based on the brightness of the corresponding pixel in the digital image and the hue of the pixel in the digital image.
  • the step of determining which sub-sub-pixels to reveal may be based on contrast transitions in the digital image.
  • the invention also relates to a medium personalizable by selective exposure to photons, comprising:
  • the invention further relates to a medium personalizable by selective exposure to photons, comprising:
  • the at least one photon-sensitive material comprises: a transparent layer covering the pixel pattern and composed of a photon-sensitive material that transitions to some level of opaqueness upon being exposed to photons of the first wavelength and intensity.
  • the at least one photon-sensitive material comprises: an opaque layer covering the fluorescent pixel pattern and composed of a photon- sensitive material that transitions to being transparent upon being exposed to photons of a second wavelength and intensity.
  • the transparent layer is for example a laser-engravable carbon-doped polycarbonate layer.
  • the opaque layer may be a bleachable ink.
  • the opaque layer is for example selectively removable by exposure to photons of particular wavelength and intensity.
  • the fluorescent print-pixel pattern is located on a surface of a substrate and between the surface of the substrate and a photon-sensitive layer.
  • the fluorescent print-pixel-pattern layer is photon-sensitive and wherein a photon- sensitive layer is located between the fluorescent print-pixel-pattern layer and the substrate.
  • the medium personalizable may further comprise at least one lamination layer covering the at least one photon-sensitive layer and the fluorescent print-pixel-pattern layer.
  • the invention also relates to an apparatus for producing an image in an image area on a medium having a substrate with a surface printed with a fluorescent print-pixel pattern when exposed to UV light and having at least one photon-sensitive layer covering the fluorescent print-pixel pattern and wherein each photon-sensitive layer is in one of a plurality of states wherein each photon-sensitive layer is alterable at selected locations from one of two states to another state of two states,
  • the apparatus comprising: at least one photon source; at least one controllable photon distributor; a controller connected to the photon source and the photon distributor and programmed to selectively activate at least one of the at least one photon source and to control the controllable photon distributor to expose at least one of the at least one photon-sensitive layers in a selected pattern across the surface thereby selectively revealing a selected subset of sub-pixels of the pixel pattern and portions of photon-sensitive layers thereby producing an image composed of the revealed sub-pixels and photon-sensitive layer portions.
  • the invention concerns also an apparatus for producing on a medium a first image in a first image area and a second image in a second image area having a substrate with a surface printed with a first print-pixel area and a second print pixel area, the first print-pixel area being composed of colored sub-pixels that absorb and /or reflect visible light in a predetermined wavelength range when exposed to visible light; the second print pixel area being composed of colored fluorescent sub-pixels that emit in a predetermined wavelength range when exposed to UV light; and having at least one photon-sensitive layer covering the first and the second print-pixel areas and wherein each photon- sensitive layer is in one of a plurality of states wherein each photon-sensitive layer is alterable at selected locations from one of two states to another state of two states, the apparatus comprising: at least one photon source; at least one controllable photon distributor; a controller connected to the photon source and the photon distributor and programmed to selectively activate at least one of the at least one photon source and to control the controllable photon distributor
  • controllable photon distributor is an array of micro-mirrors operable to selectively reflect photons emitted by the photon source onto the medium.
  • the controllable photon distributor may be a mask formed by an array of controllable elements that may be altered between an opaque state and a transparent state wherein each controllable element corresponds to a sub-pixel in the print-pixel pattern or a portion of a sub-pixel in the fluorescent print-pixel pattern.
  • the controllable photon distributor is for example a position-controllable laser operable to selectively expose areas of the medium corresponding to selected sub-pixels or portions of sub- pixels.
  • the apparatus for producing an image may further comprise a heat source for exposing the medium to heat thereby fixing the state of each photon-sensitive layer.
  • the apparatus for producing an image of comprises a UV source for exposing the medium to UV light thereby fixing the state of each photon-sensitive layer.
  • the apparatus for producing an image may comprise a picture taking apparatus connected to say controller and programmed for alignment of the controllable photon distributor with respect to said medium.
  • said medium comprises alignment marks.
  • Said medium alignment marks may be disposed on fluorescent print-pixel pattern.
  • said medium alignment marks may be disposed on a border portion of said medium that is cut after having produced the colored fluorescent image.
  • An embodiment of the invention provides a mechanism by which physical media such as identification cards, bank cards, smart cards, passports, value papers, etc. may be personalized in a post-manufacturing environment.
  • This technology may be used to place images onto such articles inside a lamination layer after the lamination layer has been applied.
  • a protective lamination layer is added to the identity card after personalization.
  • the articles for example, smart cards, may be manufactured in a mass produced fashion in a factory setting and personalized on relatively inexpensive and simple equipment at a customer location.
  • the technology provides a mechanism for thus personalizing articles, such as smart cards, bank cards, identity cards, with an image that is tamper resistant.
  • identity card refers to the entire class of physical media to which the herein-described techniques may be applied even if some such physical media are not "cards" in a strict sense.
  • identify card it is intended to include all such alternatives including but not limited to smart cards (both contact and contactless smart cards), driver's licenses, passports, government issued identity cards, bankcards, employee identification cards, security documents, personal value papers such as registrations, proofs of ownership, etc.
  • a card is initially manufactured in a factory setting.
  • the manufacturing step includes placing an integrated circuit module and connectors onto a plastic substrate, typically in the shape of a credit card.
  • the integrated circuit module may include systems programs and certain standard applications.
  • the card may also be imprinted with some graphics, e.g., the customer's logo.
  • the customer for example, a government agency, a corporation, or a financial institution, who wishes to issue secure identification cards to its customers, the end-users of the cards, next personalizes the cards.
  • Personalization includes the customer placing its application programs onto the card, and end-user specific information on the card.
  • Personalization may also include personalizing the physical appearance of the card for each end-user, e.g., by printing a name or photograph on the card.
  • the card is issued to the end-user, e.g., an employee or a client of the customer.
  • Figure 1 is an exploded perspective view of a prior art identity card 50 that allows some level of personalization of the physical appearance of the card post- issuance, e.g., by the customer.
  • a card 50 may, for example, have the following layers:
  • the top PC layer 59 may include some embossing 67 and a changeable laser image/multi laser image (CLI/MLI) 69.
  • the card 50 may include features such as a DOVID 65, i.e., a Diffractive Optical Variable Image Device such as a hologram, kinegram or other secure image, and a Sealy's Window 63 (a security feature, provided by Gemalto S.A., Meudon, France, in which a clear window that turns opaque upon tampering is provided in the card).
  • the card 50 may also contain a contact less chip and antenna system 61.
  • the laser-engravable transparent layers 57 and 53 maybe provided with a gray-scale image and identifying text.
  • FIG. 2 is a top- view of an identity card 100 according to one embodiment of the technology described herein.
  • the identity card 100 is provided with a first image area 205 and at least a second image area 206 that are constructed from several layers of material located between a substrate (e.g., a PC core) and a lamination layer.
  • a substrate e.g., a PC core
  • the first image area 205 is for example realized according to the description in US 8 314 828 incorporated by reference.
  • the produced image appears as a colored image under visible light exposure.
  • the second image area 206 is a fluorescent image area which differs from the first image area 205 in the sense that under visible light exposure the image appears to be a gray scaled image whereas under UV light exposure, the image exhibits similar coloration as the first image area 205.
  • image area 206 allows not only to check the integrity or authenticity of the identity card 100, but also to check the identity of the person to be controlled. Furthermore, the presence of such a gray scaled image area 206 under visible light is a hint for the personal to use UV light exposure to expand the check.
  • the bottom layer of these image-area layers are print-pixel grids (see Figures 3 through 8 ) which consists of a plurality of specifically arranged areas having distinct colors.
  • the print pixel grid is realized with inks (for example red, green and blue) working on the reflection or absorption principle in the visible light range.
  • the print pixel grid is a fluorescent print pixel grid and realized with fluorescent inks (for example fluorescent red, green and blue).
  • UV light impinges such inks
  • the UV is absorbed and then reemitted as visible light detectable by the observer.
  • the print pixel grid of image area 205 is designated as the "visible print pixel grid” whereas the print pixel grid of image area 206 is designated as the "fluorescent print pixel grid”.
  • the visible and the fluorescent print- pixel grids are covered by a transparent layer and an opaque layer of photon-sensitive materials.
  • the transparent layer may be selectively altered to some level of opaque black and the opaque layer may be selectively altered to transparent.
  • any given location of the image area 205 or 206 may be made to display a specific color from the print-pixel grid, black (or a darkened shade of the underlying grid sub-sub-pixel), or white.
  • the addressable locations are referred to herein as sub-sub-pixels of the image area, an image may be produced.
  • the fluorescent print-pixel grids are covered only by a transparent-to-opaque layer of photon-sensitive materials.
  • the transparent-to-opaque layer may be selectively altered to some level of opaque black.
  • any given location of the image area 205 or 206 may be made to display a specific color from the print-pixel grid and/or black (or a darkened shade of the underlying grid sub-sub-pixel).
  • fluorescent colors may combine additively, for example fluorescent red, green and blue to white.
  • the identity card 100 may have been printed with a company-logo or other graphic. Through a unique process and manufacture described in greater detail herein below, the identity card 100 contains at least a visible first color image 203, for example, a photograph of the intended end-user, printed in a first image area 205 and at least a second fluorescent second color image 204 under exposure of UV light, for example, a photograph of the intended end-user, printed respectively in said first image area 205 and said second image area 206. According to one aspect, both images 203, 204 are realized on the basis of the same original photography.
  • the identity card 100 may further have been personalized with a printed name 207. The printed name 207 may be applied to the card using the same techniques as described-herein for applying an image 203 to the identity card 100.
  • FIG 3(a) is a cross-section of the identity card 100 of Figure 2 taken along the line a-a.
  • the identity card 100 consists of a substrate 107.
  • the substrate 107 may be constructed from a plastic material, for example, selected from polycarbonate polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), PVC in combination with ABS, polyethylene terephthalate (PET), PETG, and polycarbonate (PC).
  • PVC polycarbonate polyvinyl chloride
  • ABS acrylonitrile butadiene styrene
  • PET polyethylene terephthalate
  • PC polycarbonate
  • the identity card 100 may include additional layers, e.g., laser-engravable PC layers 53 and 59 and transparent PC layers 51 and 59.
  • a visible print-pixel grid 111 and a fluorescent print pixel grid 112 are located on one surface of the substrate 107 (substrate 107 is meant herein to refer to any of the internal layers of the card 100, e.g., similar to the opaque PC layer 55, either transparent PC layer 53 or 57, or internal layers constructed from alternative materials) in an area of the substrate corresponding to respectively the image areas 205 and 206.
  • the print-pixel grid 112, which is described in greater detail herein below in conjunction with, for example, Figures 4 through 8 may be printed onto the substrate using conventional offset printing or using any other technique for accurately laying down a colored pattern onto the substrate.
  • the visible print-pixel grid 111 and the fluorescent print pixel grid 112 are covered by a transparent photon-sensitive layer 105.
  • the transparent photon-sensitive layer 105 is manufactured from a material that converts from being transparent to some level of opaqueness upon being exposed to photons of particular wavelength and intensity. Suitable materials include carbon- doped polycarbonate.
  • PC polycarbonate
  • ID products have been personalized using laser-engraving technology. This personalization is based on a laser beam heating carbon particles inside specific polycarbonate layers to the extent that the polycarbonate around the particle turns black. While the particles could be materials other than carbon, it is the intrinsic property of polycarbonate that creates the desired contrast and number of gray levels to allow creation of a photographic image.
  • the gray tone is controlled by the laser power and speed of scanning across the image areas 205 and 206.
  • a carbon-doped transparent PC layer may be selectively altered into an opaque layer along the darkness scale by exposing select location with a Nd-YAG laser or Fiber Laser.
  • a Nd-YAG laser emits light at a wavelength of 1064 nanometers in the infrared light spectrum.
  • Other Nd-YAG laser wavelengths available include 940, 1120, 1320, and 1440 nanometers. These wavelengths are all suitable for turning a transparent PC layer opaque black or partially opaque with an intensity in the range of 10 to 50 watts.
  • the Nd-YAG laser is scanned (in the manner discussed in greater detail below) over the image area for a duration of approximately 4 seconds exposing specific locations as required.
  • Fiber lasers that are suitable for turning the transparent PC layer opaque or partially opaque operate in wavelengths in the range of 600 to 2100 nanometers. While some specific lasers and wavelengths are discussed herein above, any alternative photon source, e.g., a UV laser, that converts a location on a transparent PC layer opaque may be employed in lieu thereof.
  • the transparent photon-sensitive layer 105 is covered with an opaque layer 103 that may be altered into a transparent layer by exposure to photons in a particular wavelength and intensity.
  • Suitable materials for the opaque-to - transparent photon- sensitive layer include a white bleachable ink that may be laid down on top of the transparent-to-opaque layer 105 through thermal transfer or dye sublimation, for example. Examples, include SICURA CARD 110 N WA (71-010159-3-1 180) from Siegwerk Druckmaschine AG, Sieburg, Germany, Dye Diffusion Thermal Transfer (D2T2) inks available from Datacard Group of Minnetonka, Minnesota, USA or Dai Nippon Printing Co., Tokyo, Japan.
  • Such materials may be altered selectively by exposing particular locations by a UV laser at a wavelength of, for example, 355 nanometers or 532 nanometers with an intensity in the range of 10 to 50 watts for a few milliseconds per addressable location (sub-sub- pixel).
  • a UV laser at a wavelength of, for example, 355 nanometers or 532 nanometers with an intensity in the range of 10 to 50 watts for a few milliseconds per addressable location (sub-sub- pixel).
  • the laser is continuously scanned over the image area exposing those sub-sub-pixels that are to be altered from opaque white to transparent in the opaque-to-transparent layer 103 by ink bleaching or evaporation.
  • the same UV laser wavelength that removes the ink of the opaque-to-transparent layer 103 may also be used to alter the carbon-doped transparent-to-opaque layer 105 below the removed sub-sub-pixels of the opaque-to-transparent layer 103 when there is residual power available from the UV laser.
  • the opaque-to-transparent layer 103 is a photon-sensitive layer that is amenable to a dry photographic process that requires no chemical picture treatment.
  • spiropyran photochrom with titanium oxide similar to the material used to produce with PVC. This process is based on the photochemical behavior of colored complexes between spiropyrans and metal ions.
  • Figure 4 illustrates the chemical reaction.
  • SP2 401 which is a closed structure, is exposed to UV light, it transforms into an open structure 403 that is colored.
  • a suitable alternative to SP2 401 is spiropyran indolinic (3'3'-dimethyl- 1-isopropyl-8-methoxy-6-nitrospiro[2H-1-benzopyrane-2,2-indoline]).
  • the opaque-to-transparent layer 103 is augmented with a doped organic semiconductor layer 106.
  • the doped organic semiconductor layer 106 is useful as an amplifier to improve the speed by which the opaque-to-transparent layer 103 transforms from opaque to transparent.
  • Example materials for the doped organic semiconductor layer 106 include polyvinyl carbazol and polythiophenes.
  • a polyvinyl carabazol layer 106 may be laid down by evaporation of 2.5 grams of polyvinyl carabazol in 50 cubic- centimeters of dichloromethane.
  • the semiconductor layer 106 is preferably doped to match the energy levels required for a photochromic effect in the opaque-to-transparent layer 103.
  • the photochromic effect of spiropyran-based opaque-to-transparent layer 103 may be achieved by exposure to visible or ultraviolet light.
  • the preferred intensity is in the range of 50 to 200 watts at a distance of 30 to 300 millimeters for a duration of 10 to 300 seconds.
  • the identity card 100 is covered with an upper lamination layer 109a and a lower lamination layer 109b.
  • the lamination layers 109 provide security in that they protect the images 203 and 204 produced respectively in the image areas 205 and 206 from physical manipulation.
  • the upper lamination layer 109a should be transparent to the photon wavelengths used for altering the transparent-to-opaque layer 105 and the opaque-to-transparent layer 103.
  • the lamination temperature should be low enough as to not alter the transparent-to-opaque layer 105 or opaque-to-transparent layer 103, for example, in the range of 125 to 180 degrees Celsius. Suitable materials include PVC, PVC-ABS, PET, PETG, and PC.
  • the upper lamination layer 109a may be added during the personalization phase, for example, after the image areas 205 and 206 have been personalized as described herein.
  • Such lamination may be performed using DNP CL-500D lamination media from Dai Nippon Printing Co., Tokyo, Japan or other suitable lamination technology.
  • the fluorescent print-pixel grid 112 is composed of an array of print-pixels 501.
  • a print-pixel 501 corresponds to a pixel in a bitmap of an image, e.g., one pixel in a file in the .bmp format.
  • the small portion of a fluorescent print-pixel grid 112 illustrated in Figure 5 contains a 4 x 7 grid of print-pixels 501.
  • a grid having many more print-pixels in each dimension would be necessary for producing a meaningful image.
  • Each print-pixel 501 contains 3 rectangular sub-pixels 503a, 503b, and 503c, each corresponding to a unique fluorescent color, e.g., fluorescent green, fluorescent blue, and fluorescent red as illustrated in the example.
  • the fluorescent colors are formed by specific fluorescent inks that under visible light do not reflect or absorb in a specific wavelength range. This means that under visible light conditions (for example day light) the fluorescent colors appear to be transparent as they do not reflect or absorb a specific color. However, under UV light, light emission is stimulated in the fluorescent inks and each fluorescent color emits light in the visible spectrum in a specific wavelength range, for example green, blue or red.
  • each sub-pixel 503 is subdivided into a plurality of sub-sub-pixels 505.
  • each sub-pixel 503 is composed of a 2 x 6 grid of sub-sub-pixels 505.
  • print-pixel is used herein to the equivalent of a pixel in a digital image that is printed in the fluorescent print-pixel grid and having a plurality of sub-pixels that each form a portion of the print-pixel, and the corresponding areas in the photon- sensitive layers that cover the image area 205.
  • a sub-pixel is a fluorescent single-color area of the fluorescent print-pixel.
  • a sub-sub-pixel is a single addressable location in a sub-pixel.
  • a sub-pixel is composed of one or more sub-sub-pixels.
  • a sub-sub-pixel may take its exposed fluorescent color from either the print-pixel grid or any of the photon-sensitive layers.
  • FIG 6 is an illustration of an alternative fluorescent print-pixel grid 112" composed of print-pixels 501" that are composed of hexagonal sub-pixels 503". As is illustrated in Figure 6(b) , each hexagonal sub-pixel 503" is composed of six triangular sub-sub-pixels 505" that when connected form the hexagonal sub-pixel 503". As must be appreciated, while Figures 5 and 6 illustrate two different fluorescent print-pixel structures, there are many more possible structures. All such alternatives must be considered equivalents to the print-pixel structures illustrated here as examples.
  • Figure 7 is a color photograph 701 of a model and is presented here as an illustrative example.
  • the image 701 is created by selectively turning on specific colors from the transparent-to-opaque layer 105, the opaque-to-transparent layer 103, and from the print-pixel grid 112 for each sub-sub- pixel 505 that make up the print-pixels 501 forming the image.
  • the lower left print-pixel 501" lies on the model's lower eyelid and has pinkish red fluorescent coloration.
  • a large portion of the fluorescent red sub-pixel 503c" is revealed by 8 of 12 fluorescent red sub-sub-pixels 505 of the underlying print-pixel grid.
  • the fluorescent blue sub-sub-pixels are entirely obscured by the opaque white layer and most of the fluorescent green sub-sub-pixels are obscured by the black layer, thereby giving a neutral brightness and primarily fluorescent red coloration to the print- pixel 501".
  • Figure 9(a) illustrates the manipulation of the opaque-to-transparent layer 103 and the transparent-to-opaque layer 105 to produce desired fluorescent colors for a fluorescent print-pixel 501 by displaying the cross-section of each of a black print-pixel 501a, a white print- pixel 501b, a fluorescent red print-pixel 501c, and a fluorescent blue print-pixel 501d.
  • each column represents one sub-pixel 503.
  • Sub-sub-pixels 505 are not illustrated in Figure 9(a) .
  • the opaque-to-transparent layer 103 is made transparent (T) by exposing the print-pixel 501a to the state-changing light necessary to alter the opaque-to- transparent layer 103 of the print-pixel from opaque white (W) to transparent (T).
  • T transparent
  • the print-pixel 501b is not illuminated at all because the default state for die opaque-to-transparent layer 103 is white.
  • the transparent-to-opaque layer 105 may have any value as it is occluded by the opaque white layer 103. However, typically it would be left transparent (T).
  • both the opaque-to-transparent layer 103 and the transparent-to-opaque layer 105 are configured in their transparent state (T) for the area over the red (R) sub-pixel. That effect is produced by exposing the opaque-to-transparent layer 103 to the state-altering photons for the opaque-to-transparent layer 103 while leaving the transparent-to-opaque layer 105 in its native state.
  • the opaque-to-transparent layer 103 for either the fluorescent green or fluorescent blue sub-pixel may be altered to transparent (T) and the corresponding location on the transparent-to-opaque layer 105 may be altered to black (K) to reveal a black sub-pixel.
  • black and white sub-pixels or sub-sub-pixels for the non-colored sub- pixels or sub-sub-pixels may be used to adjust the brightness of the pixel 501.
  • this is of particular importance in order to prevent a "glow” effect and the problem of blurred image details that would lead to difficulties for identification of the document.
  • the blue fluorescent pixel 50 Id is produced similarly to the red fluorescent pixel 501c.
  • Figure 9(b) illustrates an alternative embodiment to that illustrated in figure 9(a) with only one photo sensitive layer and taking the advantage that due to fluorescence of the pixels, colors may also be obtained through additive color composition, in particular additive RGB color composition.
  • the photo sensitive layer may in particular be a transparent-to-opaque layer 105 (transparent (T) to black (K)) to produce desired fluorescent colors for a fluorescent print-pixel 501 by displaying the cross-section of each of a black print-pixel 501'a, a fluorescent white print-pixel 501'b, a fluorescent red print-pixel 501'c, a fluorescent blue print-pixel 501'd, a fluorescent green print-pixel 501'e, and a fluorescent yellow print-pixel 501'f.
  • T transparent
  • K black
  • each column represents one sub-pixel 503.
  • Sub-sub-pixels 505 are not illustrated in Figure 9(b) .
  • the transparent-to-opaque layer 105 is made opaque (K) by exposing the print-pixel 501'a to the state-changing light necessary to alter the transparent-to-opaque layer 105 of the print-pixel from transparent to black (K).
  • the print-pixel 501'b is not illuminated at all and left in its native state because the default state for die transparent-to-opaque layer 105 is transparent. Then, under exposure to UV light, red, green and blue sub-sub-pixel 505 will emit their respective fluorescent colors which would appear white to an observer.
  • the transparent-to-opaque layer 105 is configured in its transparent state (T) for the area over the red (R) sub-pixel and left native opaque over the green (G) sub-pixel and the blue (B) sub-pixel.
  • the transparent-to-opaque layer 105 is configured in its transparent state (T) for the area over the blue (B) sub-pixel and left native opaque over the green (G) sub-pixel and the red (R) sub-pixel.
  • the transparent-to-opaque layer 105 is configured in its transparent state (T) for the area over the green (G) sub-pixel and left native opaque over the red (R) sub-pixel and the blue (B) sub-pixel.
  • the transparent-to-opaque layer 105 is configured in its transparent state (T) for the area over the red (R) sub-pixel the green (G) sub-pixel, and left native opaque over the blue (B) sub-pixel.
  • cyan may be obtained by combining blue and green fluorescent sub-sub-pixels and magenta may be obtained by combining blue and red fluorescent sub-sub-pixels.
  • the brightness of the pixel 501 may be adjusted. In case of fluorescent ink and colors, this is of particular importance in order to prevent a "glow" effect and the problem of blurred image details that would lead to difficulties for identification of the document.
  • Figure 9(a) and 9(b) illustrate the manipulation of the photon-sensitive layers on a sub-pixel level
  • actual fluorescent print-pixels 501 are composed of many fluorescent sub-sub-pixels 505 and that many color and brightness variations may be produced by selectively revealing colored fluorescent, black, and white (when present) sub-sub-pixels in suitable combination to produce the desired fluorescent coloration and brightness for a given print-pixel 501.
  • the ink being fluorescent the white is not essential for the fluorescent color image, in particular when the light is only UV light.
  • the use of the blackmask and white mask can also be used for optimizing the black and white effect on the photo under normal light. The man of the art will understand that even if only one mask is sufficient, the use of two mask have additional interest for a security feature for preventing forgery.
  • FIG. 10 is a flow-chart illustrating the steps of one embodiment for computing these masks. The description should not be considered limiting as there are other possible algorithms for producing the masks.
  • the process 110 accepts as input a digital image 121, for example, in the .bmp format.
  • a .bmp format image file 121 is a bitmap for each pixel in an image to particular RGB (red-green-blue) values.
  • the process 110 converts the image file 121 into an exposure mask white 125a and an exposure mask black 125b.
  • These exposure masks 125 are provided as input to a controller 355 ( Figures 12 and 13 ) for controlling the exposure of sub-sub-pixels of the transparent-to-opaque layer 105 and opaque-to-transparent layer 103,
  • the goal in designing the masks 125 is to produce an image that resembles the image of the digital image file 121.
  • the process 110 is described with respect to square print-pixels 501 with three rectangular sub-pixels 503 for fluorescent green, fluorescent blue and fluorescent red, respectively, as illustrated in Figure 5 .
  • the print-pixel pattern includes either black or white (or both) sub-pixels that may take the place of one of the photon-sensitive layers 103 or 105.
  • the fluorescent print-pixel pattern includes colors such as cyan, magenta, and yellow to allow for greater variability in displayed colors.
  • the process 110 would be modified to account for such different structures in the fluorescent print-pixel pattern and the covering photon-sensitive layers.
  • an objective of the process 110 is to determine how much of each color sub-pixel 503 is to be visible for each fluorescent print-pixel in the resulting image 204 when exposed to UV light.
  • a second objective is the determination of the opacity for the transparent-to-opaque layer 105 because that layer may take on varying degrees of opacity.
  • the process 110 determines the ratio between black and white fully obscuring sub- sub-pixels and the locations for such sub-sub-pixels.
  • the brightness of each source pixel is determined, step 127.
  • each print-pixel is brightness adjusted in step 133.
  • Step 133 thus, computes the overall portion of each print-pixel 501 that should be fully opaque black to be used in computations described herein below. This allows preventing any glow effect or blurring.
  • the number of revealed fluorescent sub-sub-pixels for each fluorescent color and also the number of sub-sub-pixels for black cover are both victim of quantization error during the computations.
  • this quantization error does not have an easily perceptible effect on the image for a human viewer, and the quantization errors can be ignored.
  • a fluorescent print-pixel is designed with fewer sub-sub-pixels per sub-pixel, then these quantization errors become more noticeable in the produced image quality.
  • the human eye is much more sensitive to brightness errors than color errors, so the priority is to repair the brightness quantization errors.
  • the adjustability of the transparent-to-black photosensitive layer 105 allows an opportunity for correction.
  • the sub-sub-pixels that are to be opaque are mapped on the grid of sub-sub-pixels 505 that make up the print-pixel 501, step 135.
  • a preference is given to have opacity located on the periphery of the print-pixel 501.
  • This result is achieved by ordering the sub-sub-pixels as to their relative order of priority for being made an opaque sub-sub-pixel.
  • the opaque sub - sub-pixels are located according to that priority ordering until all opaque sub-sub-pixels have been assigned particular locations.
  • opacity is assigned to the next fluorescent sub-sub-pixel in the opacity preference order.
  • the black cover map is computed. That calculation commences with determining the brightness positioning preference, step 137.
  • the source image 121 is analyzed to identify sharp brightness boundaries and to set up a brightness positioning preference for each fluorescent print-pixel 501; for fluorescent print-pixels that do not lie on a brightness boundary, no brightness positioning preference is assigned.
  • Step 139 a darkness ordering preference is computed.
  • each black opaque sub-sub-pixel is allocated to a sub-sub-pixel in the order provided by the darkness ordered list of sub-sub-pixels. If as a black opaque pixel is to be allocated has not been marked to be opaque in the opacity map 123, that sub-sub-pixel is not marked as black and the next sub-sub-pixel in the darkness ordered list of sub-sub-pixels is considered. If the sub-sub-pixel has been marked to be opaque in the opacity map 123, it is marked to be black.
  • the process 110 has determined the location of white sub-sub-pixels for the opaque-to-transparent layer 103 and black sub-sub-pixels revealed from the transparent-to- opaque layer 105.
  • these maps are translated in to exposure patterns for each of the photon sensitive layers 103 and 105, step 143, resulting in an exposure mask for white 125a corresponding to the opaque -white-to- transparent layer, and an exposure mask for black 12 5b corresponding to the transparent-to-black layer.
  • Figure 11 is a flow-chart illustrating a process 150 of using the masks produced from the process 110 to create an actual image on an identity card 100.
  • the identity card 100 and the exposure equipment are aligned to assure accurate exposure of the photon sensitive layers 103 and 105 to produce the image, step 151.
  • the alignment needs to be realized with respect to the fluorescent print pixel grid 112. Indeed misalignment could result in revealing the incorrect sub-sub-pixels from the print- pixel array 112. Thus, accurate alignment is very important.
  • fluorescent inks fluorescent red, green or blue for example
  • this alignment is even more harsh as under visible light, one cannot detect the different fluorescent colors in the grid.
  • the alignment can be achieved in using specific alignment marks on the card 100 or on the print pixel grid 112.
  • an alignment mark can be disposed in a peripheral area of the card 100, or in a peripheral area of the print pixel grid 112, such as a corner.
  • such alignment marks may be disposed on a border portion of the card 100 that is cut after having produced the colored fluorescent image.
  • the white layer mask 125a is used to turn-off masking of sub-sub-pixels in the opaque-to-transparent layer 103 that are to be converted from opaque white to transparent, step 153.
  • the image area is then exposed to photons in the correct wavelength and intensity to convert from opaque to transparent, step 155.
  • the transparent-to-opaque layer 105 is converted from transparent to black by first unmasking the sub-sub-pixels that are to be converted to black, step 157.
  • the unmasked sub-sub-pixels are next exposed to the requisite photons to cause the conversion from transparent to black, step 159.
  • the image is fixed through a fixation step 161.
  • the method by which the image is fixed i.e., the method by which the opaque-to -transparent layer 103 and transparent-to-opaque layer 105 are prevented from changing to other states, varies by material.
  • the most straightforward case is for the opaque-to-transparent layer 103 being bleachable ink. Certain bleachable inks have been found to evaporate when exposed to UV laser. Thus, when the opaque-to-transparent layer 103 is transformed from opaque to transparent by removal of the pigmentation from that layer, it is not possible to revert back to being opaque. It is a one-way transformation.
  • the layer may be made fixable by including a fixing material in the layer, e.g., Ludopal as a photoreticulable polymer with benzoyl peroxide as radical initiator.
  • This layer 103 may be fixed through exposure to UV light in the range of 488nm to 564nm with a power of approximately 3.5 milliwatts/cm 2 for approximately 5 seconds.
  • Suitable equipment includes a black ray lamp B-100 A, No 6283K-10, 150W from Thomas Scientific of Swedesboro, New Jersey, U.S.A.
  • a spiropyran opaque- to-transparent layer 103 may be fixed using heated rolls, e.g., 3M Dry Silver Developer Heated Rolls at 125 degrees Celsius on medium speed.
  • a final quality check step 163 may be envisaged by taking a picture of the fluorescent image and comparing it to the original one.
  • FIG 12 is a block diagram of a first embodiment of a personalization station 351 for producing an image 204 in the manner described herein above.
  • a .BMP digital image 121 is input into a mask computer 353.
  • the mask computer 353 may be a general-purpose computer programmed to perform the computations of process 110 described herein above in conjunction with Figure 10 .
  • the mask computer 353 thus includes a storage medium for storing instructions executable by a processor of the mask computer 353. When the processor loads these instructions, which include instructions to perform the operations of process 110, into its internal memory and executes the instructions with respect to the input .BMP image 121, the mask computer 353 produces the masks 125.
  • fluorescent inks fluorescent red, green or blue for example
  • the alignment is even more harsh as a camera in the visible cannot detect the different fluorescent colors under visible light.
  • the apparatus 351 for producing an image further comprises a picture taking apparatus 364 like a camera connected to the controller 355.
  • the controller is programmed to align the controllable photon distributor, for example an array of micro-mirrors 357 with respect the card 100 in using specific alignment marks 366.
  • these alignment marks may be disposed on fluorescent print-pixel pattern 112.
  • the alignment marks may in an alternative be disposed on a border portion of said card 100 that is cut after having produced the colored fluorescent image, that is after fixation step 161 or quality check step 163.
  • the masks 125 are input into a process controller 355.
  • the process controller 355 is programmed to perform the steps of process 150 of Figure 11 .
  • the process controller 355 may use the masks to control the array of micromirrors 357 such that when a photon beam 359 emitted from a photon point source 361 is directed upon the micromirrors 357 the latter redirects the photon beam solely onto those sub- sub-pixels of the image area 205 that are to be exposed according to the masks 125.
  • the controller 355 may also be programmed to control the photon source 361 to cause appropriate duration exposure of these sub -sub-pixels.
  • an alternative embodiment uses an array for micro-fresnel lenses in lieu of the micromirrors 357. In such an embodiment, each Fresnel lens provides a focus onto a specific sub-sub-pixel.
  • identity card 100 comprises in general, as shown in figure 2 , first image area 205 where the produced image appears colored under visible light exposure and second image area 206, for example adjacent to the first image area 205, where the produced image appears gray under visible light exposure and colored under exposure of UV light.
  • the images of the first image area 205 and the second image area 206 may be produced in parallel during process 150 with the same apparatus 351.
  • Figure 13 is an alternative embodiment of a personalization station 351' for producing an image 203 in an image area 205 of an identity card 100.
  • a controller 355' is programmed to accept the masks 125 to control a light array 363 that is composed of a plurality of light sources.
  • the light array 363 produces photons in the appropriate wavelength and intensity to convert the photon-sensitive layers of corresponding locations in the image area 205.
  • the photon beams produced by the light array 363 are focused through one or more lenses 365 to cause the trajectory of the photon beams onto the appropriate sub-sub-pixel locations in the image area 205.
  • Figure 14 is a flow-chart of a smart card life cycle 370 extended to include the technology described herein.
  • the print-pixel grids 111 and 112 are printed onto a substrate 107 of each card, step 11. This may be, for example, be performed through standard offset printing.
  • the transparent-to-opaque layer 105 layer is deposited onto the card, step 13.
  • the opaque-to- transparent layer 103 is placed on the card, step 15.
  • the card is laminated, step 17a.
  • the lamination step is performed after the image 203 has been produced on the card 100.
  • only one of steps 13 and 15 can be perform if only one photosentive layer is used.
  • the resulting manufactured card 100 has a first and a second image area 205 and 206 that consist of the print-pixel layers 111 and 112, the transparent-to-opaque layer 105, and the opaque-to- transparent layer 103 all optionally under a laminate layer 109.
  • the cards 100 may now be delivered to customers, step 20.
  • the cards 100 may be personalized for end-users, step 30. This includes rendering an image of the end-user onto the card, step 31, in the manner described herein above by converting an image file into masks 125 that maybe used to control equipment that expose select locations of the image areas 205 and 206 to photons that selectively reveal or conceal sub-sub-pixels of various specified visible and fluorescent colors. After the image has been created, it is fixed, step 33. Alternatively, the cards 100 may be protected against alteration by adding a filter that filters out photons that would alter the photon-sensitive layers, e.g., by applying a filtering varnish to the card.
  • an additional transparent layer is included between the upper lamination layer 109a and the photon-sensitive layers 103 and 105.
  • This additional layer is also a photon sensitive layer.
  • This additional layer upon being exposed to photon energy or heat, transforms from being transparent to the wavelengths that transform the opaque-to-transparent layer 103 and transparent-to- opaque layer 105 to being opaque to those wavelengths thereby blocking any attempts to alter the image 203.
  • the personalization phase 30 may conclude with a lamination layer 17b after the personalization of the image areas 205 and 206.
  • the post-person lamination step 17b also provides an alternative opportunity for laying down a filter that blocks photons that could otherwise further alter the image 203, in which case the fixation step 33 and the lamination step 17b may be considered to be one step.
  • card 100 maybe issued to an end-user 40.
  • the smart card life cycle has been successfully modified to provide for post-issuance personalization by placing an end-user image on the card under a laminate thereby improving the personalization of the card while providing for a high degree of tamper resistance and by adding a further security feature with an image that appears gray under visible light exposure and colored under exposure to UV light.

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018197278A1 (fr) * 2017-04-26 2018-11-01 Muehlbauer GmbH & Co. KG Insert de sécurité muni d'une couche uv pour un document d'identité et procédé de fabrication d'un insert de sécurité muni d'une couche uv pour un document d'identité
GB2564122A (en) * 2017-07-04 2019-01-09 De La Rue Int Ltd Optical devices and methods for their manufacture
CN110062702A (zh) * 2016-10-04 2019-07-26 霍克佛莱恩有限公司 安全元件和具有该安全元件的有价文件
GB2584597A (en) * 2019-03-28 2020-12-16 De La Rue Int Ltd Security device and method of manufacture thereof
US11124009B2 (en) 2017-04-26 2021-09-21 Muehlbauer GmbH & Co. KG Security inlay for an identity document and method for producing a security inlay for an identity document
EP4155093A1 (fr) * 2021-09-24 2023-03-29 HID Global CID SAS Document de sécurité personnalisable et son procédé de fabrication
EP4283399A1 (fr) * 2022-05-24 2023-11-29 IDEMIA France Procédé de fabrication d'un document d'identité, document d'identité et procédé d'authentification d'un tel document d'identité

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3842254A1 (fr) * 2019-12-24 2021-06-30 Thales Dis France Sa Élément de sécurité luminescente personnalisable
PL442654A1 (pl) * 2022-10-26 2024-04-29 Polska Wytwórnia Papierów Wartościowych Spółka Akcyjna Element zabezpieczający do dokumentów identyfikacyjnych, w szczególności dokumentów tożsamości, oraz dokument zawierający taki element zabezpieczający

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040259975A1 (en) 2003-06-18 2004-12-23 Robillard Jean J. System and method for forming photobleachable ink compositions
US20050161512A1 (en) 2001-12-24 2005-07-28 Jones Robert L. Optically variable personalized indicia for identification documents
US20060201362A1 (en) * 2003-08-04 2006-09-14 Thierry Dumery Method for producing a luminescent pattern from non-overlapping dots, and corresponding luminescent pattern
US7368217B2 (en) 2002-05-08 2008-05-06 Orga Systems Gmbh Multilayer image, particularly a multicolor image
WO2009056355A1 (fr) * 2007-10-31 2009-05-07 Bundesdruckerei Gmbh Procédé de fabrication d'un ensemble de couches polymères et ensemble de couches polymères pourvu d'une caractéristique de sécurité en couleur
WO2011045180A1 (fr) * 2009-10-18 2011-04-21 Gemalto Sa Personnalisation de support physique par dissimulation et présentation sélectives de pixels de couleur pré-imprimés
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050161512A1 (en) 2001-12-24 2005-07-28 Jones Robert L. Optically variable personalized indicia for identification documents
US7368217B2 (en) 2002-05-08 2008-05-06 Orga Systems Gmbh Multilayer image, particularly a multicolor image
US20040259975A1 (en) 2003-06-18 2004-12-23 Robillard Jean J. System and method for forming photobleachable ink compositions
US20060201362A1 (en) * 2003-08-04 2006-09-14 Thierry Dumery Method for producing a luminescent pattern from non-overlapping dots, and corresponding luminescent pattern
WO2009056355A1 (fr) * 2007-10-31 2009-05-07 Bundesdruckerei Gmbh Procédé de fabrication d'un ensemble de couches polymères et ensemble de couches polymères pourvu d'une caractéristique de sécurité en couleur
WO2011045180A1 (fr) * 2009-10-18 2011-04-21 Gemalto Sa Personnalisation de support physique par dissimulation et présentation sélectives de pixels de couleur pré-imprimés
US8314828B2 (en) 2009-10-18 2012-11-20 Gemalto Sa Personalization of physical media by selectively revealing and hiding pre-printed color pixels
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J. ROBILLARD ET AL., OPTICAL MATERIALS, vol. 24, 2003, pages 491 - 495

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110062702A (zh) * 2016-10-04 2019-07-26 霍克佛莱恩有限公司 安全元件和具有该安全元件的有价文件
US11124009B2 (en) 2017-04-26 2021-09-21 Muehlbauer GmbH & Co. KG Security inlay for an identity document and method for producing a security inlay for an identity document
CN108790465A (zh) * 2017-04-26 2018-11-13 米尔鲍尔有限两合公司 用于证件的具有uv涂层的安全嵌件和用于证件的具有uv涂层的安全嵌件的制造方法
WO2018197278A1 (fr) * 2017-04-26 2018-11-01 Muehlbauer GmbH & Co. KG Insert de sécurité muni d'une couche uv pour un document d'identité et procédé de fabrication d'un insert de sécurité muni d'une couche uv pour un document d'identité
US11285754B2 (en) 2017-04-26 2022-03-29 Muehlbauer GmbH & Co. KG Security inlay having a UV coating for an identity document and method for producing a security inlay having a UV coating for an identity document
GB2564122A (en) * 2017-07-04 2019-01-09 De La Rue Int Ltd Optical devices and methods for their manufacture
GB2564122B (en) * 2017-07-04 2021-01-13 De La Rue Int Ltd Optical devices and methods for their manufacture
GB2584597A (en) * 2019-03-28 2020-12-16 De La Rue Int Ltd Security device and method of manufacture thereof
GB2584597B (en) * 2019-03-28 2023-01-18 De La Rue Int Ltd Security device and method of manufacture thereof
EP4155093A1 (fr) * 2021-09-24 2023-03-29 HID Global CID SAS Document de sécurité personnalisable et son procédé de fabrication
WO2023046379A1 (fr) * 2021-09-24 2023-03-30 Hid Global Cid Sas Document de sécurité personnalisable et son procédé de fabrication
EP4283399A1 (fr) * 2022-05-24 2023-11-29 IDEMIA France Procédé de fabrication d'un document d'identité, document d'identité et procédé d'authentification d'un tel document d'identité
FR3135917A1 (fr) * 2022-05-24 2023-12-01 Idemia France Procédé de fabrication d'un document d'identité, document d'identité et procédé d'authentification d'un tel document d’identité

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