EP1325816B1 - Support de données avec élément optiquement variable - Google Patents

Support de données avec élément optiquement variable Download PDF

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Publication number
EP1325816B1
EP1325816B1 EP03008023A EP03008023A EP1325816B1 EP 1325816 B1 EP1325816 B1 EP 1325816B1 EP 03008023 A EP03008023 A EP 03008023A EP 03008023 A EP03008023 A EP 03008023A EP 1325816 B1 EP1325816 B1 EP 1325816B1
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EP
European Patent Office
Prior art keywords
information
grid
optically variable
embossing
data carrier
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.)
Expired - Lifetime
Application number
EP03008023A
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German (de)
English (en)
Other versions
EP1325816A2 (fr
EP1325816A3 (fr
Inventor
Eckhard Braun
Johann Müller
Reinhard Plaschka
Franz Daniel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
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
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Publication of EP1325816A3 publication Critical patent/EP1325816A3/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • B42D2033/24—
    • B42D2035/16—
    • B42D2035/24—

Definitions

  • the invention relates to a data carrier having an optically variable structure characterizing the authenticity of the data carrier, which has an embossing matrix which is combined with a coating contrasting with the surface of the data carrier in such a way that at least partial areas of the coating are completely visible when viewed vertically, but obscured when obliquely viewed be, so that when alternately vertical and oblique viewing a tilting effect arises, ie that under at least one predetermined angle, a first information is recognizable, which is not or only very weak when viewed vertically.
  • a disk with such a hologram is z. B. from the EP 440 045 A2 known. In this document, it is proposed to apply the hologram as a prefabricated element or as an embossing in a paint layer applied to the disk.
  • optically variable structures can also be incorporated in data carriers.
  • a line structure is additionally embossed in the data carrier in the region of this line pattern, so that flanks arise which are visible only at certain viewing angles are.
  • flanks arise which are visible only at certain viewing angles are.
  • these lines are visible when looking obliquely at the flanks provided with the lines. If the sides are viewed at an angle, the line pattern is not recognizable.
  • phase jumps are present in the line grid or in the embossing grid in subregions of the embossed surface, then information can be displayed that is recognizable either only from the first oblique viewing angle or only from the second viewing angle.
  • Out US 5,722,693 a data carrier with a genuineness of the data carrier characterizing, optically variable structure is known, which has an embossed structure which is combined with a contrasting surface of the data carrier coating so that at least partial areas of the coating are visible when viewed vertically, when viewing obliquely under a predetermined viewing direction but are covered, so that when tilted vertically and oblique viewing a tilting effect arises.
  • Out US 5,722,693 is also a disk with a coating in the form of a grid structure with a predetermined periodicity and with additional information known in the area no embossed structure is arranged.
  • the object of the present invention is now to improve the already known security element with the introduced embossing with regard to safety aspects.
  • the invention is based on the idea, an optically variable security element having an embossed structure, which is combined with a printed image, line grid or the like, hereinafter also called coating, to be supplemented so that either a gain of the already known optically variable effect occurs or at least one further visually recognizable effect occurs to the already known optically variable effect.
  • an optically variable security element having an embossed structure, which is combined with a printed image, line grid or the like, hereinafter also called coating, to be supplemented so that either a gain of the already known optically variable effect occurs or at least one further visually recognizable effect occurs to the already known optically variable effect.
  • the total of the optically variable effect produced by the combination of background and embossing and the additional effect is visually recognizable, it can not be reproduced by means of copiers. Accordingly, it can serve as information by means of which it can be checked whether it is an original document or in the presence of the or the optically variable one Effects can be ruled out that the document was produced using commercially available reproduction techniques
  • the basic idea of the invention is distinguished from the prior art by a number of advantages.
  • the forgery-proofness of the document is significantly increased by the provision of the amplification or additional effect.
  • the recognizability of the security element in the data carrier is facilitated because the element is easy to find and more visible due to the additional effects.
  • the optically variable structure can be present on the data carrier as a separate element or as part of the data carrier, so that a multiplicity of concrete realization possibilities is given.
  • the Fig. 1 showed a data carrier 1 with an optically variable structure 3, which is placed in the print image area 2 of the data carrier and in the pressure-free area.
  • the optically variable structure 3 is used according to the invention as a so-called human feature, ie as a testable by humans without aids feature, in addition to optionally further features for determining the authenticity of the data carrier.
  • the provision of such features is particularly useful for banknotes but also for other monetary documents, such as stocks, checks and the like.
  • data carriers can also be considered as used today, for example, to identify persons or to carry out transactions or services.
  • the optically variable structure 3 can be of very different construction, combined with the resulting different effects from different viewing directions.
  • the optically variable structure consists of a coating which contrasts with the surface of the data carrier in the form of a grid produced by printing or otherwise or a full-surface or closed layer which can also be produced by printing or other means, for example by means of a transfer process .
  • the effects that are used to determine the authenticity of the data carrier are generated by the embossing grid interacting with the coating.
  • the line structures of the coating / printing grid are not necessarily straight, but preferably curved or even entangled, ie also executed in the form of guilloches.
  • the information shown as simple bars in the following examples can also be replaced by arbitrarily complex image or text information.
  • the Line grid structures usually exploit the possibilities of printing technology. As a result, typical line widths are on the order of about 50 to 1000 ⁇ settled.
  • the embossing master structures are usually selected in the range of 50 to 500 ⁇ amplitude height.
  • the embodiments 1 to 2 and 4 to 22 are not the subject of the present invention and are merely illustrative.
  • Fig. 2 shows in conjunction with the Fig. 3, 4 and 5 an optically variable structure in which the coating consists of a parallel straight printing grid 6.
  • the width of the printing lines corresponds approximately to the width of the gaps.
  • An information 7, which consists in this case of a full-surface imprint, is arranged perpendicular to the printing grid.
  • the coinage 8, in the left margin of the Fig. 2 according to its structure and assignment to the line grid 6 shown schematically, is congruent to the printing grid positioned so that the viewer when viewed obliquely from the viewing direction B facing edge of the embossing grid with the respective gap of the print grid and facing away from the viewer viewing surface 9 with the pressure lines of the printing grid 6 coincides.
  • This connection is in the Fig. 3 to 5 clarified. In this case, the flanks facing the viewing direction B of the embossing with position 10, the flanks facing away with position 9 are marked.
  • the line grid 6 is in the schematic sectional view of Fig. 3 reproduced as a
  • the embossing grid is shown triangular. Depending on the design of the stamping die, however, the grid may also be trapezoidal, sinusoidal, semicircular or another shape.
  • the information 7 in the environment of the print grid 6 is completely visible.
  • the environment appears in a specific shade of gray depending on the periodicity of the grid.
  • the result is a gray tone with a coverage of 50%.
  • the information 7 is not recognizable, because the viewer from this viewing direction facing flanks 10 of the embossed structure completely covered are.
  • the viewer sees accordingly, for example, a completely printed area in which the information is not recognizable because it is not contrasting with the surroundings.
  • the information is 7 in Fig. 5 but slightly contrasting to the line grid.
  • the described optically variable structure exhibits a tilting effect with completely different information content when changing from viewing direction B to viewing direction C, which is easily recognizable, but can not be reproduced by a copier, because the copying machine feeds originals only from the viewing direction A, i. scans perpendicular to the document surface and can reproduce only recognizable from the viewing direction A information content.
  • the print screen 6 is as in Example 1, a parallel, straight grid.
  • the information 7 is represented by a pressure-free, recessed gap.
  • the embossing 8 is congruent to the print grid 6 and positioned so to the print grid, as described with reference to Example 1.
  • the information is not embossed, i. the embossing grid is interrupted in the area of information.
  • the information 7 When viewing this optically variable structure vertically, the information 7 is easily recognizable in the screened environment.
  • the information When viewing the structure from the viewing direction B, the information disappears, because the observer faces the unprinted flanks of the embossed structure from this direction. From the opposite viewing direction C appears the information as a pressure-free area in a completely printed environment.
  • embossing embossing embossed structure 8 also extends over the unprinted area of the information 7 or when the area of the information 7 is embossed as a whole, but in unembossed form makes the information 7 (from the viewing direction C) a more homogeneous impression.
  • the information 7 is slightly recognizable because of the different surface structure of the embossed and unembossed areas in the gloss angle of the data carrier from any viewing direction.
  • a continuous line grid is selected in this example, without providing information produced by printing technology.
  • the embossment 8 is congruent to the print grid and positioned as in the previous examples to the printing grid so that the line grid is arranged on the flanks 9. In the area of the information 7 to be displayed, the embossing is interrupted.
  • the information When viewing this optically variable structure perpendicular to the surface, only the printed screen is recognizable without any information.
  • the information appears in an unprinted environment in the form of an area with printed and unprinted areas.
  • the information thus appears in a gray tone against a white background.
  • the information From the opposite viewing direction C, the information also appears in a gray tone, but in this case against a dark background (100% area coverage), since the edges of the embossing master 8 facing the observer are completely printed.
  • Line grid 6 and embossing grid 8 correspond in this example, the arrangement shown in Example 3. The difference is that in the region of the information to be displayed 7, a further embossing key 19 is provided, which is arranged perpendicular to the embossing master 8.
  • the line screen 6 in this example corresponds to the previous print screens. In the area of information, however, the line grid deviates from the given course, e.g. by being arranged at right angles to the information contour.
  • the embossment 8 runs parallel to the basic grid. In information area 7 there is no coinage.
  • the information at the same raster frequency in the information and environment area is virtually undetectable because of the same area coverage.
  • the information 7 appears in a gray tone against a bright environment, while the information from the viewing direction C appears in a gray tone against a dark background.
  • the screen frequency in the information area can also deviate from that in the surrounding area. The more the grids deviate from one another, the better the information will be when viewed perpendicular to the surface.
  • the print screen consists of a two-color line print 11,12, the lines adjoin one another.
  • a first information 13 is represented by recesses in the lines 11 of the first color
  • a second information 14 is represented by corresponding recesses in the lines 12 of the second color.
  • the embossed structure 8 is arranged parallel to the basic structure and extends over the entire printing grid.
  • the embossing grid is positioned so that the lines 11 of the first color on each of a first edge of the grid and the lines 12 of the second color are arranged on the respective opposite edge of the grid.
  • the line screen 6 is broken according to the information contour. Within the information contour, however, the line grid continues to run phase-shifted in the grid gaps. The staggered line areas are marked with position 16, the gaps in the information area with position 17. Outside the print grid, the information is supplemented by a full-surface imprint 18. The embossing 8 runs parallel to the basic grid over the entire surface, the additional information 18 remains unembossed.
  • the information When looking at the optically variable structure perpendicular to the surface, the information is only fragmentarily recognizable.
  • the viewing direction B When viewed from the viewing direction B appears through the phase shift only the part of the information in the embossing dark against light background and thus complements the outside of the embossed structure printed additional information 18. From this viewing direction is thus the overall information clearly visible against a light background. From the opposite viewing direction C, the information in the embossing master area appears bright against a dark background and also supplements the additional information 18 located outside the embossing frame.
  • the optically variable structure consists of a line grid 6, which is interrupted.
  • the information 7 is represented by a second line grid, which is arranged perpendicular to the basic grid 6.
  • a first embossing 8 extends congruently to the line grid 6, while a second embossment 19 extends correspondingly congruent to the information grid 7.
  • Both grids are, as in the previous examples, positioned to the printing grids.
  • the coating consists of a parallel, straight line grid with comparatively thin raster lines 20 in relation to the gaps.
  • the information is by widening 21 of the lines 20 shown.
  • the broadening of the lines can reproduce a halftone image, as it is, for example in the EP-PS 0 085 066 is described.
  • the embossment 8 is parallel to the line grid and is positioned so that the thin grid lines coincide with the facing away from the direction B flanks of the embossing grid.
  • the widenings 21 of the information extend, depending on the size, along the flanks or else via the zenith of the embossed structure to the respectively opposite flank.
  • the halftone image represented by the broadening of the lines appears in a light gray environment.
  • the thin grid lines 20 are located on the flanks of the embossing frame facing away from the observer.
  • the image information is thus thinned, the environment for image information appears white.
  • the grid lines 20 are facing the observer, as the structure is rotated from the perpendicular view to a flat angle, the dark halftones are first faded out of this viewing direction.
  • the grid lines remain visible. Only at a very shallow angle does the entire structure appear dark in a full tone.
  • the optically variable structure consists of individual printed grid elements 25, 26, 27 and 28.
  • the printing grid in the individual elements are oriented differently, extending vertically in the element 25, extending horizontally in the element 26, extending diagonally in the element 27 and also diagonally in the element 28, but with respect to the element 27 of other orientation.
  • the individual embossing frames are matched to the individual elements.
  • the individual elements are assembled to form an overall structure.
  • optically variable structures described in this example differ essentially from the structures described so far in that the linear coating pattern is arranged on the zeniths of the embossed embossing master, the lines of the coating pattern starting from the zeniths of the sinusoidal grid being symmetrical on both sides the flanks extend more or less far.
  • the line grid 6 of the optically variable structure in this example is also parallel and straight, the line width corresponds approximately to the gap between the lines.
  • the data carrier is embossed in the region of the optically variable structure in such a way that the embossing runs congruently to the printing grid and extends from the zeniths 32 into both flank regions 9, 10.
  • the grid gaps are fitted in the valleys 31 of the embossing structure such that they also extend into the adjacent lower flank areas.
  • the line grid is produced in flat printing or with the aid of other coating methods (transfer printing) with layer thicknesses that make no significant thickening of the data carrier in unembossed data carrier and accordingly allow an unchanged flat surface.
  • the coating or line grid can thus be combined with any embossed structures and any desired embossing curves.
  • the embossing height of the sinusoidal grid is thus substantially greater than the thickness of the printing layer or a metallic coating applied, for example, in the transfer process.
  • At an embossing height between 50 and 100 ⁇ is the thickness of the paint layer or other Coatings with optically variable effect (metal layer, iriodin color layer, liquid crystal color layer) usually smaller than 10 ⁇ .
  • FIG. 15 schematically illustrated embossed structure of the optically variable element perpendicular to the surface line grid 6 is recognizable depending on the version (ratio line width to the gap) in a gray tone or a reduced color saturation of a particular color. From the viewing directions A and B, depending on the angle of inclination, the unprinted valleys 31 of the embossing frame are initially recognizable until the structure at a flat viewing angle merges into the full-surface tone of the grid color.
  • the optically variable element from the viewing directions A and B has the same tilting effect.
  • the print grid in this case consists of a two-color line grid with the colors 11 and 12, which adjoin one another. There are gaps between the pairs of lines which roughly correspond to the width of the pairs of lines.
  • the embossing is congruent with the printing grid and positioned to the grid so that the line of contact of the two-color line pairs are arranged on the zeniths 32 of the grid. The valleys 31 of the grid are unprinted.
  • the viewer sees a mixed color of the colors 11 and 12. From the viewing direction B, the observer first sees the line grid with the color 11 interrupted by the unprinted at a steeper viewing angle Areas in the valleys 31 until at a shallow angle the color 11 appears in full tone. From the viewing direction C, the viewer accordingly sees first the line grid in color 12 and with correspondingly flat viewing angle also this color in full tone.
  • the line grid in this example is bicolor with the colors 11 and 12, which adjoin each other without gaps.
  • the embossing is in turn congruent to the print grid in the form that the color 11 coincides with the zeniths 32 and accordingly the color 12 with the valleys 31.
  • the viewer sees the mixed color of the individual colors 11 and 12 at 100% area coverage. If the structure is viewed obliquely, the visual impression changes, depending on the angle of inclination, from the mixed color recognizable by vertical observation to the spot color facing the observer.
  • the line grid 6 is parallel in this example, straight, with corresponding gaps between the grid lines.
  • the embossing is congruent with the pressure grid, whereby, as in the previous examples, the pressure lines coincide with the zeniths of the embossing master.
  • the information 7 of the optically variable structure is represented in this example by an embossing which has a lower amplitude 36 in the area of the information than the embossing amplitude 35 in the vicinity of the information.
  • the background area 6 first changes into a full tone with an increasingly flattening angle, while the information area 7 still appears in a gray tone, since parts of the unprinted flanks can still be seen in this area.
  • the information area also appears in full tone, i. the information disappears again.
  • a modification of this optically variable structure is that there is no embossing in the information area. In this case, even when viewed at a very shallow angle, the information area remains unchanged in a gray tone relative to the dark environment.
  • the print screen in this example is tri-color, consisting of the colors 11, 12 and 15, which are spaced apart from each other.
  • the embossing is congruent to the print grid with different amplitude, in the present example, the higher amplitude 35 is about twice as high as the low amplitude.
  • the Color 11 On the zeniths 32 of higher amplitude is the Color 11 and provided on the zeniths of lower amplitude, the color 12, while the color 15 coincides with the valleys 31 between the amplitudes of the embossing master.
  • the viewer sees a mixed color of the colors 11, 12 and 15.
  • the color 15 present in the valleys is first covered, and the color becomes increasingly flatter with a viewing angle 12 on the lower amplitudes of the embossed structure disappears and finally the color 11 appears on the higher amplitudes of the embossed structure in full tone.
  • the color impression thus changes from the mixed color resulting from three colors to the mixed color from two colors up to the monochrome full tone. This effect is the same from both viewing angles B, C.
  • the optically variable structure shown in this example is that in FIG Fig. 12 (Example 8) structure very similar. It differs only in that the embossing master 8 and 19 are formed sinusoidal and the grid lines are arranged on the zenith of the embossing master.
  • Example 8 When viewed vertically, the effect described in Example 8 sets. From the viewing directions B and C, the information area 7 appears in gray tone in a dark environment. From the viewing angles E and D, on the other hand, the information area 7 appears in a dark full tone in a gray tone of the surrounding area.
  • At least portions of the ambient contrasting coating are made from paints or layers having optically variable properties.
  • Optically variable colors or layers show different optical effects even under different viewing angles.
  • Such optically variable colors / layers are well known to the person skilled in the art.
  • Such colors usually have interference, diffraction, polarization or dichroic effects. Depending on the type and composition, they therefore change the color impression with a varying viewing angle.
  • the surface of the data carrier 1 is provided with a coating 6 of an optically varying color. At least in a partial region of the coating 6, a line embossing is provided, which is trapezoidal in this case.
  • the embossed area appears opposite the unembossed area in a different color, since the flanks 9 and 10, with respect to the viewing direction, are inclined and thus appear in a different color than the environment or the flattened plateaus and valleys of the embossed structure.
  • the optically variable structure is viewed from an oblique viewing direction B, corresponding color changes are recognizable, which always emphasize the embossed area in contrast to the unembossed area.
  • embossing has different flank angles or partial areas with different embossing profiles or differing flank angles.
  • the data carrier is printed along a strip 39 with a so-called disembodied iriodin color.
  • iriodin colors have the property that they are almost completely invisible when viewed vertically, while they generally have a sharp color impression (for example gold) at a glancing angle.
  • iriodin coating information 40 are shown in the form of recesses.
  • an embossing pattern is provided on the strip within the outlines of the desired information 41.
  • the embossed information 41 is superimposed on the information 40 represented by the iriodin coating and only for better clarity in the Fig. 24 shown separately.
  • the information 40 and also 41 are almost invisible.
  • the information 40 appears at a first glancing angle (total reflection), while the embossed information 41 appears at a different glancing angle, since the flanks of the embossed structure have a different angle to the respective viewing direction than in the unembossed region.
  • the information 40 or 41 are thus always recognizable only at different angles, while they are almost invisible under vertical viewing.
  • the optically variable structure in this example largely corresponds to the previous example.
  • the embossed structure 41 is as shown in FIG Fig. 26 visible, highlighted by a colored line grid 6.
  • the line grid may be offset in the region of the outline of the information.
  • the print screen When viewing this structure in incident light, the print screen is visible, while the information 40 left out of the iriodin coating is almost invisible. As in the previous example, only the information 40 appears under the glancing angle of the iriodin ink alone, while the embossed information 41 becomes visible at a different glancing angle alone.
  • this information as described with reference to the preceding examples, but also in oblique viewing dark against light environment or from the opposite viewing direction bright against dark environment.
  • the effect caused by the iriodine color in the embossing region in contrast to the previous example, fades into the background.
  • the optically variable structure consists of a high-gloss metallic coating 43 applied to a data carrier 1, which can be applied, for example, by the transfer process.
  • a data carrier 1 which can be applied, for example, by the transfer process.
  • an embossing master 44 is provided within the metallic coating and indeed within the contour outline of the characters to be displayed.
  • the embossing pattern appears light matt in a glossy, dark environment.
  • Gloss angle range of the metallic coating reversing the light-dark effect.
  • the metallic strip 43 may also have a holographic structure, whereby the described effect is superimposed outside the embossed information 44 by the holographic information. In the embossed area the holographic information is destroyed.
  • the metal strip 43 has a line grid 46 in the form of demetallized areas.
  • a stamping 8 which is designed congruent to the metallic line grid.
  • the line grid 46 When viewing this optically variable structure perpendicular to the surface, the line grid 46 can be seen. When viewed obliquely, a metallic matte surface appears in a glossy environment, while from the opposite viewing direction a completely demetallized surface appears in a shiny metallic environment.
  • the optically variable structure in this example is characterized in that a first print grid 6 is provided on the front of the data carrier 1 and a second print grid 48 on the back of the data carrier. At least parts of the two print rasters are printed exactly in registration with each other, which is generally done with so-called simultaneous printing is carried out.
  • the embossing is carried out in this example so that it is present on both sides as a positive / negative embossing master.
  • the effects on the front as well as on the back of the respective viewing directions A, B, C result from the effects described with reference to the preceding examples.
  • transmitted light effects can result because, for example, the rasters on the front and back of the data carrier complement each other or, if the print raster overlaps correspondingly, they result in mixed colors.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Semiconductor Memories (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Claims (3)

  1. Support de données (1), comportant une structure (3) optiquement variable, identifiant l'authenticité du support de données (1) et comportant une structure en relief (8) qui est combinée à un revêtement (6), contrastant par rapport à la surface du support de données (1), de telle sorte qu'au moins des zones partielles du revêtement (6) sont visibles dans le cas d'une observation en perpendiculaire, mais sont masquées dans le cas d'une observation en oblique dans une direction prédéterminée, de manière à produire un effet de basculement en alternant entre une observation en perpendiculaire et une observation en oblique, ledit revêtement (6) étant réalisé sous la forme d'une structure en réseau avec une périodicité prédéterminée, la structure (3) optiquement variable comportant, en plus, une information (7), et aucune structure en relief n'étant disposée dans la zone de l'information (7), caractérisé en ce que la structure en réseau (6) est réalisée pour former un réseau continu de lignes même dans la zone de l'information (7).
  2. Support de données (1) selon la revendication 1, caractérisé en ce que la structure en réseau (6) et la structure en relief (8) présentent la même périodicité.
  3. Support de données (1) selon au moins l'une des revendications 1 à 2, caractérisé en ce que la structure en relief (8) est réalisée avec une forme trapézoïdale, sinusoïdale, semi-circulaire ou triangulaire.
EP03008023A 1995-11-03 1996-11-02 Support de données avec élément optiquement variable Expired - Lifetime EP1325816B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19541064A DE19541064A1 (de) 1995-11-03 1995-11-03 Datenträger mit einem optisch variablen Element
DE19541064 1995-11-03
EP96938044A EP0801604B2 (fr) 1995-11-03 1996-11-02 Support de donnees portant un element optiquement variable

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP96938044A Division EP0801604B2 (fr) 1995-11-03 1996-11-02 Support de donnees portant un element optiquement variable
EP96938044.3 Division 1997-05-15

Publications (3)

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EP1325816A2 EP1325816A2 (fr) 2003-07-09
EP1325816A3 EP1325816A3 (fr) 2003-09-10
EP1325816B1 true EP1325816B1 (fr) 2011-06-22

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EP03008023A Expired - Lifetime EP1325816B1 (fr) 1995-11-03 1996-11-02 Support de données avec élément optiquement variable
EP96938044A Expired - Lifetime EP0801604B2 (fr) 1995-11-03 1996-11-02 Support de donnees portant un element optiquement variable

Family Applications After (1)

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EP96938044A Expired - Lifetime EP0801604B2 (fr) 1995-11-03 1996-11-02 Support de donnees portant un element optiquement variable

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US (2) US6036233A (fr)
EP (2) EP1325816B1 (fr)
JP (1) JP4596570B2 (fr)
AT (2) ATE513694T1 (fr)
AU (1) AU7562096A (fr)
BG (3) BG64379B1 (fr)
CA (2) CA2209285C (fr)
DE (4) DE19541064A1 (fr)
DK (1) DK0801604T4 (fr)
ES (1) ES2205064T5 (fr)
PL (1) PL188480B1 (fr)
PT (1) PT801604E (fr)
RU (1) RU2161092C2 (fr)
WO (1) WO1997017211A1 (fr)

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Also Published As

Publication number Publication date
DK0801604T3 (da) 2004-02-02
ATE250508T1 (de) 2003-10-15
DE19680958D2 (de) 1999-12-02
PT801604E (pt) 2004-02-27
PL321140A1 (en) 1997-11-24
DE29623753U1 (de) 1999-09-02
CA2490834A1 (fr) 1997-05-15
US6036233A (en) 2000-03-14
ES2205064T5 (es) 2010-04-30
BG108790A (en) 2005-01-31
EP1325816A2 (fr) 2003-07-09
EP0801604B2 (fr) 2010-02-17
EP1325816A3 (fr) 2003-09-10
DK0801604T4 (da) 2010-06-07
ES2205064T3 (es) 2004-05-01
ATE513694T1 (de) 2011-07-15
EP0801604A1 (fr) 1997-10-22
DE19541064A1 (de) 1997-05-07
JP4596570B2 (ja) 2010-12-08
JPH11501590A (ja) 1999-02-09
BG64379B1 (bg) 2004-12-30
AU7562096A (en) 1997-05-29
PL188480B1 (pl) 2005-02-28
RU2161092C2 (ru) 2000-12-27
CA2209285A1 (fr) 1997-05-15
BG101719A (en) 1998-03-31
CA2490834C (fr) 2006-07-11
CA2209285C (fr) 2006-08-15
BG65294B1 (bg) 2007-12-28
EP0801604B1 (fr) 2003-09-24
WO1997017211A1 (fr) 1997-05-15
US6283509B1 (en) 2001-09-04
DE59610736D1 (de) 2003-10-30

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