EP1392520B1 - Diffraktives sicherheitselement - Google Patents
Diffraktives sicherheitselement Download PDFInfo
- Publication number
- EP1392520B1 EP1392520B1 EP20020745339 EP02745339A EP1392520B1 EP 1392520 B1 EP1392520 B1 EP 1392520B1 EP 20020745339 EP20020745339 EP 20020745339 EP 02745339 A EP02745339 A EP 02745339A EP 1392520 B1 EP1392520 B1 EP 1392520B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mosaic
- areas
- lines
- relief structures
- security element
- 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
Links
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Images
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/04—Preventing copies being made of an original
- G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1486—Ornamental, decorative, pattern, or indicia
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- Y10T428/24322—Composite web or sheet
- Y10T428/24331—Composite web or sheet including nonapertured component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/24876—Intermediate layer contains particulate material [e.g., pigment, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249967—Inorganic matrix in void-containing component
- Y10T428/24997—Of metal-containing material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
Definitions
- the invention relates to a diffractive security element according to the Preamble of claim 1.
- Such diffractive security elements are used for authentication of authenticity of a document and are characterized by an optically variable pattern by turning or tilting for the observer in a conspicuous way and Way intended changes.
- Such diffractive security elements are known from many sources, Representative here are EP 0 105 099 B1, EP 0 330 738 B1, EP 0 375 833 B1 called. They are characterized by the brilliance of the patterns and the Moving effect in the pattern out, are in a thin plastic laminate are embedded in the form of a mark on documents such as banknotes, Securities, identity cards, passports, visa, identity cards etc. glued on. Materials which can be used to produce the security elements are described in EP 0 201 323 B1.
- Modern color copiers and scanner facilities are capable of such Seemingly to duplicate the document in true color.
- the diffractive Security elements are copied, although the brilliance and the Motion effect is lost, so that the original under a single predetermined viewing angle visible patterns with the inks of the Color copying is displayed.
- Such copies of documents may be included poor lighting conditions or inattention with the original be confused.
- the human eye recognizes colored, arranged next to each other Squares a color contrast when the wavelengths of the spectral colors in distinguish the faces by less than ten nanometers (nm). In particular, in the area 470 nm to 640 nm an observer still fall Differences of 1 nm to 2 nm (W.D. Wright & F.H.G. Pitt "Hue discrimination in normal clour vision ", Proc. Physical Society (London) Vol. 46, p. 459 (1934)).
- a colored security paper which as a background a repetitive, e.g. Plaid, pattern of two colors A and B , wherein the information with a further color S on the Background pattern is printed.
- the spectral reflectivities of the colors A, B and S are chosen so that the color copier, although in areas with the color A a contrast between A and S, in areas of color B but not between B and S can recognize and reproduce. On the copy are therefore of the Information only visible in the areas A parts visible.
- the US 5,338,066 points to two methods, a manufactured by printing to distinguish colored original from its color copy. That has a method chemical constituents of the printing ink after and the other method is supported on the different dynamic areas in image processing of the Color copier compared with the image processing of the human eye.
- in the Original ones show the colors of the background and the information in theirs spectral reflectivity to a modulation of ⁇ 5%, with the background color the maximum in the green spectral range of visible light and the color for the information each have a maximum in the blue and red spectral range.
- the spectral reflectivities of both complementary colors have averaged over the visible spectral range the same value and together form the Color white. While the eye is the purple information before the green Background, the color copier registers only a white one to slightly gray area.
- the invention is based on the object, a cost-effective diffractive Security element to create that of a color copier not has reproducible information.
- FIG. 1 a cross-section is glued onto a document 1 Security element 2 shown with a surface pattern 3.
- documents 1 are mainly ID cards, banknotes, visas, securities, entrance cards, etc. meant, which serve as a substrate for the security element 2 and their authenticity is authenticated by the glued security element 2.
- the microscopic fine, mechanically or holographically generated, optically active structures 4 of the surface pattern 3 are embedded in a laminate of plastic.
- the layer composite consists of a crystal-clear, transparent Covering layer 5, through which the surface pattern 3 of predetermined Observation directions is visually recognizable.
- Under the cover layer 5 is a Lacquer layer 6 is arranged, in which the microscopically fine structure 4 is molded.
- the structure 4 is only symbolically drawn as a simple rectangular structure and stands for a mosaic of the surface pattern 3 of the optically active structures 4 of surface elements.
- the structure 4 is such with a protective lacquer layer 7 covers up that furrows of the structures 4 are filled by the protective lacquer layer 7 and the structure 4 between the lacquer layer 6 and the protective lacquer layer 7 is embedded.
- a Adhesive layer 8 is arranged between the document 1 and the protective lacquer layer 7 to connect.
- the layers 5 and 6 or 7 and 8 can in others Be made of the same material, leaving an interface between the layers 5 and 6 or 7 and 8 deleted.
- the structure 4 determines a Interface 9 between layers 6 and 7.
- the optical effectiveness of Interface 9 increases with the difference of the refractive indices of the materials in the both adjacent layers, the lacquer layer 6 and the protective lacquer layer 7.
- the structure 4 is present the application of the protective lacquer layer 7 with a compared to the depths of Furrows coated thin, metallic or dielectric reflective coating.
- Other versions of the security element 2 and the transparent ones or non-transparent security elements 2 usable materials are in described in EP 0 201 323 B1 mentioned above.
- the one shown in FIG Structure 4 is only symbolically drawn as a simple rectangular structure and stands for general optically active structures 4, such as light-diffracting relief structures, light-scattering relief structures or mirror surfaces.
- Well-known light-diffractive Relief structures are linear or circular diffraction gratings and holograms.
- the light-scattering relief structures also include matt structures.
- FIG. 2 the security element 2 attached to the document 1 is shown in FIG a tablet 10 shown.
- the tablet 10 is part of a diffractive Surface pattern 3.
- the writing plate 10 has a simple design at least two abutting mosaic surfaces 11, 12. In others Designs form the mosaic surfaces 11, 12 a pattern with a Background area 12 and patches 11. The areas of the background area 11 and the partial surfaces 12 are covered with diffraction structures. Further mosaic-like arranged, having a diffractive, diffusive or reflective property Surface elements 13 complete the surface pattern 3. Single band-shaped Surface elements 13 may also extend over the tablet 10.
- the writing tablet 10 has an inscription "TEXT".
- the inscription consists of the sub-areas 11, which within at least one background area 12 are arranged. Incident white light is emitted at the diffraction structures bent so that an observer under predetermined Viewing conditions both the background surface 12 and the Part surfaces 11 appear in predetermined colors and the partial surfaces 11th stand out by a color contrast to the background surface 12.
- FIG. 3 shows a schematic cross section through a scanning device a color copier.
- a glass plate 14 serves as a support for the copy to be copied Document 1 with the glued security element 2 (Fig. 1).
- the document 1 contacted with its surface to be copied, the glass plate 14.
- a White light source 15 illuminates a narrow strip 16 on the glass plate 14, wherein in this representation, the strip 16 in the direction y perpendicular to Drawing plane of Figure 3 extends and therefore in the drawing only as a point is visible.
- a direction x is parallel to the plane of the drawing of Figure 3 and Surface of the glass plate 14 directed.
- An illumination beam 17 from the White light source 15 is refracted through the glass plate 14 toward the solder so that the illumination beam 17 at an angle of about 30 ° to the surface of the document 1 and the diffraction structure and a to the strip 16 parallel area 18 of the document 1 illuminates.
- In the area 18 becomes the light reflected by the diffraction structure and reflected on the surface of the Document 1 scattered or reflected.
- Part of the bowed, reflected or scattered light again penetrates the glass plate 14 and is in the half-space sent back over the glass plate 14. Only the glass plate 14 vertical penetrating light rays 19 pass directly or via a deflection mirror as deflected light rays 21 into a light receiver 20. All other light, e.g.
- Die White light source 15 and the light receiver 20 are on a carriage 24th arranged on rails 25 for optically scanning the document 1 in the Direction x is displaceable.
- the white light source 15, the deflection mirror, the Light receiver 20 and the carriage 24 extend parallel to the strip 16 linear in the y direction.
- Not shown in the drawing is the appearance of the Light receiver 20 for guiding the light beams 19, 21 between the area 18th and the light receiver 20.
- the area 18 moves in steps so about the document 1 that the color copier a strip-shaped image of the Document 1 or security element 2 after the other.
- the entire substrate 10 is scanned optically in steps.
- FIG. 4 shows a color diagram. (from "Optical Document Security", van Renesse, Editor, ISDN number 0-89006-982-4, page 135). Places of spectral pure colors form the outer tongue-shaped boundary 26. The three-digit Numbers along the boundary 26 indicate the wavelength of the light Nanometers (nm). The straight connecting line 27 between 380 nm and 770 nm is the place of purple. All mixed colors are in the color range 28 within the border 26 and the connecting line 27. The in the color range 28 lying polygon 29 includes the range of color reproduction of high-quality color printing machines and the inner, polygonal, hatched Color range 30 with the white point 31 is from color copiers played. Are the colors of document 1 with the color press printed, lie the color values within the polygon 29.
- the color copier with the color value range 30 restricts that in the copy of the document 1 as they are all assigned to color value range 30 are.
- An outside of the color value range 30 e.g. on a line 34 within the Color range 28 lying color value is in color copy as color point 35 played.
- the color point 35 lies on the line 34, which is the location of the color value and the white point 31 connects.
- the illustrated writing tablet 10 generates with its microscopic fine, mechanically or holographically produced, optically effective Structures 4 (Fig. 1) when illuminated with white light (daylight) for the Observers almost spectrally pure colors lying on the boundary 26 (Fig.4).
- Fig. 1 When copying the tablet 10 is under the ruling in the color copier Lighting conditions and according to the parameters of the lit. Diffraction structures in the background area 12 and / or in the partial areas 11 Registered light with almost spectrally pure color in the light receiver 20 (Fig. 3).
- the surface pattern 3 (FIG. 2) is under the scanning and lighting conditions in the color copier in FIG the registered for the light receiver 20 pattern with the colors of the Color value range 30 is reproduced in the color copy.
- the playback of the Surface pattern 3 in the color copy therefore also depends on the scanning direction from.
- the spatial frequencies f H and f T are selected such that the eye of the observer determines a color contrast between the background area 12 and the partial areas 11 and can distinguish the partial areas 11 from the background area 12. Therefore, the observer recognizes in the original of the security element 2, the information shown with the sub-areas 11. If the spatial frequencies f H and f T are closely adjacent, the color copier reproduces both the background area 12 and the areas 11 in the same color value. The background area 12 and the partial areas 11 are thus indistinguishable in the copy.
- the information represented by the faces 11 are alphanumeric characters as shown in FIG. 2 and / or graphic patterns or characters.
- FIG. 5 shows the illumination and observation conditions in FIG Color copier.
- the security element 2 with the optically active structure 4 is located in the x-y plane of the document 1. Is the structure 4 a plane in the x-y plane Mirror surface, which is inclined at an angle - ⁇ Illuminating beam 17 at the angle + ⁇ to the normal 32 as a second beam 22nd reflected.
- the flat mirror surface registers the color copier therefore as black Area.
- the illumination beam 17, second beam 22 and the normal 32 set a Diffraction plane 33 fixed.
- the optically active structure 4 is a linear diffraction grating 40 (FIG. 6)
- the light beam 19 (FIG. 3) diffracted into the negative k th diffraction order falls only into the light receiver 20 (FIG. 3) when the light beam 19 is diffracted parallel to the normal 32.
- the diffracted light beam 19 has the wavelength ⁇ in the k-th diffraction order.
- the range limits are determined by the optics, geometry and color sensitivity of the light receiver 20.
- the spatial frequency f is advantageous to modulate the spatial frequency f, wherein the spatial frequency f over at least part of a period or over several periods of 0.5 mm to 10.0 mm with a stroke of 3 lines / mm to 20 lines / mm changes.
- This modulation is visible to the naked eye in daylight, but is not reproducible by the color copier.
- two mosaic surfaces 11 and 12 abut one another with the spatial frequencies f H and f T , wherein along the common boundary of the two mosaic surfaces 11 and 12 the modulation of the spatial frequencies f H and f T is shifted by one phase angle, for example in the region of 90 ° to 180 °.
- the grating vector is an azimuth ⁇ Diffraction plane 33 on.
- the effective spatial frequency f decreases at one linear diffraction grating with increasing azimuth ⁇ , so that the of Diffraction grating in the direction of the normal 32 produced spectral color both in the Background area 12 and in the sub-areas 11 changed, with the Difference in the wavelengths of the diffracted light beams 19 from the Background surface 12 and hardly changed from the partial surfaces 11 and the Color copier does not reflect the small color differences.
- the diffraction grating acts like a dark one Matt structure and is reproduced by the color copier in a gray tone.
- the Reproducing the document 1 (FIG. 2) with the security element 2 with the Diffraction optical surface pattern 3 depends on the orientation of the Surface pattern 3 on the glass plate 18 (Fig. 3) from, wherein the tablet 10 is always is reproduced in one color, so that the contained in the sub-areas 11 Information is not recognizable.
- the spatial frequencies for the diffraction gratings of background area 12 and subareas 11 are selected such that upon scanning of area pattern 3 with white illumination beam 17 (Figure 3), light at wavelength ⁇ in the range of 615 nm to 700 nm enters the light receiver 25 (Fig. 3) passes.
- the values for f H and f T are interchangeable.
- the diffraction gratings of the background surface 12 (FIG. 2) and the partial surfaces 11 (FIG. 2) advantageously have the embodiments shown in FIG which differ only in the spatial frequencies f H and f T.
- the diffraction gratings satisfy square or hexagonal patches 36 having a largest dimension h of less than 0.3 mm.
- the surface pieces 36 are of the same shape and the same size and fill the background surface 11 and the partial surfaces 12 completely.
- the mosaic surfaces 11, 12 are composed of the patches 36 having the character of PixeIn.
- the shapes of the diffraction gratings satisfying the patches 36 are circular diffraction gratings 37, linear cross gratings 38, hexagonal diffraction gratings 39.
- circular diffraction grating 37 circular grooves are concentrically arranged in the sheet 36 at the spatial frequency f.
- the linear cross grating 38 has two or more crossed linear diffraction gratings, preferably with the same spatial frequency f.
- the grooves In the hexagonal diffraction grating 39, the grooves have a hexagonal shape and are arranged concentrically in the surface piece 36, advantageously of hexagonal shape, with the spatial frequency f.
- groupings of linear diffraction gratings 40 with grid vectors distributed regularly in the azimuth can be used; this grouping of the linear diffraction gratings 40 is a generalization of the hexagonal diffraction grating 39. Also, the linear diffraction gratings 40 are advantageous, which were considered in the description of Figures 1 to 5.
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Credit Cards Or The Like (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Road Signs Or Road Markings (AREA)
- Printing Methods (AREA)
- Burglar Alarm Systems (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Prostheses (AREA)
Description
- Figur 1
- einen Querschnitt durch eine Reliefstruktur,
- Figur 2
- ein Flächenmuster,
- Figur 3
- einen Querschnitt durch eine Abtastvorrichtung eines Farbkopierers,
- Figur 4
- ein Farbdiagramm,
- Figur 5
- eine Beugungsebene und
- Figur 6
- Beugungsgitter.
Claims (9)
- Sicherheitselement (2) mit einem in einem Schichtverbund aus Kunststoff eingebetteten, aus vorbestimmten Beobachtungsrichtungen visuell erkennbaren, reflektierenden optisch variablen Flächenmuster (3) gebildet aus einem Mosaik von optisch wirksamen Flächenelementen (13),
dadurch gekennzeichnet, dass im Mosaik des Flächenmusters (3) wenigstens zwei der Mosaikflächen (11; 12) des Flächenmusters (3) im wesentlichen benachbart angeordnet und mit mikroskopisch feinen lichtbeugenden, im wesentlichen parallele Gittervektoren aufweisenden Reliefstrukturen (4) belegt sind, dass die Spatialfrequenzen (f) der Reliefstrukturen (4) Werte aus vorbestimmten Spatialfrequenzbereichen derart aufweisen, dass bei schief zu einer Normalen (32) auf die Ebene des Schichtverbunds einfallende Beleuchtungsstrahlen (19) die Reliefstrukturen (4) der Mosaikflächen (11; 12) sichtbares, monochromatisches Licht parallel zur Normalen (32) ablenken, dass wenigstens eine der benachbarten Mosaikflächen (11; 12) als Hintergrundfläche (12) eine oder eine Vielzahl der andem Mosaikflächen (Teilflächen 11) so umschliesst, dass die Teilflächen (11) so auf der Hintergrundfläche (12) angeordnet sind, dass die Teilflächen (11) eine mit dem blossen Auge erkennbare Information bilden und dass sich die Reliefstrukturen (4) der Hintergrund- und Teilflächen bildenden Mosaikflächen (11; 12) derart in der Spatialfrequenz f unterscheiden, dass sich für einen Beobachter die Hintergrundfläche(n) (12) und Teilflächen (11) durch einen Farbkontrast unterscheiden, während in einer Farbkopie die benachbarten Hintergrundfläche(n) (12) und Teilflächen (11) in gleicher Farbe bzw. Grauton wiedergegeben sind - Sicherheitselement (2) nach Anspruch 1,
dadurch gekennzeichnet, dass der Unterschied in den Spatialfrequenzen (f) der Reliefstrukturen (4) in den benachbarten Mosaikflächen (11; 12) höchstens 40 Linien/mm beträgt. - Sicherheitselement (2) nach Anspruch 1,
dadurch gekennzeichnet, dass die Spatialfrequenz (f) der Reliefstrukturen (4) wenigstens einer der Mosaikflächen (11; 12) mit einer Periode von 0,5 mm bis 10 mm und einem Hub von 3 Linien bis 20 Linien moduliert ist. - Sicherheitselement (2) nach Anspruch 3,
dadurch gekennzeichnet, dass die Modulation der Spatialfrequenz (fH) der Reliefstruktur (4) in der einen Mosaikfläche (11) um einen Phasenwinkel aus dem Bereich 60° bis 180° gegenüber der Modulation der Spatialfrequenz (fT) der Reliefstruktur (4) in der anderen Mosaikfläche (12) verschoben ist. - Sicherheitselement (2) nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Spatialfrequenzen (f) der Reliefstrukturen (4) in den benachbarten Mosaikflächen (11; 12) im Bereich von 350 Linien/mm bis 550 Linien/mm und/oder von 725 Linien/mm bis 1025 Linien/mm liegen. - Sicherheitselement (2) nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Spatialfrequenzen (f) der Reliefstrukturen (4) in den benachbarten Mosaikflächen (11; 12) im Bereich von 800 Linien/mm bis 820 Linien/mm und/oder 860 Linien/mm bis 890 Linien/mm liegen. - Sicherheitselement (2) nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass in den benachbarten Mosaikflächen (11; 12) Teilflächen (11) die Form von Worten oder alphanumerischen Zeichen oder eines graphischen Designs aufweisen. - Sicherheitselement (2) nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass die benachbarten Mosaikflächen (11; 12) in Flächenstücke (36) mit einer grössten Abmessung (h) von 0,3 mm eingeteilt sind und dass die Flächenstücke (36) der benachbarten Mosaikflächen (11; 12) zirkuläre Beugungsgitter (37) oder Kreuzgitter (38) oder hexagonale Beugungsgitter (39) als Reliefstrukturen (4) aufweisen. - Sicherheitselement (2) nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass die benachbarten Mosaikflächen (11; 12) lineare Beugungsgitter (40) als Reliefstrukturen (4) aufweisen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10127981A DE10127981C1 (de) | 2001-06-08 | 2001-06-08 | Diffraktives Sicherheitselement |
DE10127981 | 2001-06-08 | ||
PCT/EP2002/005984 WO2002100653A1 (de) | 2001-06-08 | 2002-05-31 | Diffraktives sicherheitselement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1392520A1 EP1392520A1 (de) | 2004-03-03 |
EP1392520B1 true EP1392520B1 (de) | 2005-07-20 |
Family
ID=7687718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20020745339 Expired - Lifetime EP1392520B1 (de) | 2001-06-08 | 2002-05-31 | Diffraktives sicherheitselement |
Country Status (11)
Country | Link |
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US (1) | US7144617B2 (de) |
EP (1) | EP1392520B1 (de) |
JP (1) | JP4384487B2 (de) |
AT (1) | ATE299803T1 (de) |
CZ (1) | CZ302060B6 (de) |
DE (2) | DE10127981C1 (de) |
ES (1) | ES2246014T3 (de) |
PL (1) | PL199079B1 (de) |
PT (1) | PT1392520E (de) |
TW (1) | TW577833B (de) |
WO (1) | WO2002100653A1 (de) |
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GB0417422D0 (en) * | 2004-08-05 | 2004-09-08 | Suisse Electronique Microtech | Security device |
GB0426724D0 (en) | 2004-12-06 | 2005-01-12 | Rue De Int Ltd | Improved hologram |
US9624008B2 (en) | 2007-03-23 | 2017-04-18 | Selig Sealing Products, Inc. | Container seal with removal tab and security ring seal |
US8522990B2 (en) * | 2007-03-23 | 2013-09-03 | Selig Sealing Products, Inc. | Container seal with removal tab and holographic security ring seal |
US8703265B2 (en) * | 2007-03-23 | 2014-04-22 | Selig Sealing Products, Inc. | Container seal with removal tab and piercable holographic security seal |
JP5347233B2 (ja) * | 2007-04-03 | 2013-11-20 | 凸版印刷株式会社 | 回折画像表示体及びラベル付き物品 |
JP2008275740A (ja) * | 2007-04-26 | 2008-11-13 | Toppan Printing Co Ltd | 表示体及び積層体 |
MX2010002223A (es) | 2007-08-24 | 2010-05-19 | Selig Sealing Products Inc | Cobertura de propositos multiples y metodo de cubrir higienicamente una parte superior de recipiente. |
JP2010197798A (ja) * | 2009-02-26 | 2010-09-09 | Toppan Printing Co Ltd | 偽造防止機能を有する光学素子及びそれを具備する偽造防止表示体 |
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US20140103634A1 (en) * | 2012-10-15 | 2014-04-17 | Opsec Security Group, Inc. | Structured color filter device |
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-
2001
- 2001-06-08 DE DE10127981A patent/DE10127981C1/de not_active Expired - Fee Related
-
2002
- 2002-05-31 TW TW91111626A patent/TW577833B/zh not_active IP Right Cessation
- 2002-05-31 AT AT02745339T patent/ATE299803T1/de active
- 2002-05-31 JP JP2003503449A patent/JP4384487B2/ja not_active Expired - Fee Related
- 2002-05-31 ES ES02745339T patent/ES2246014T3/es not_active Expired - Lifetime
- 2002-05-31 WO PCT/EP2002/005984 patent/WO2002100653A1/de active IP Right Grant
- 2002-05-31 US US10/476,994 patent/US7144617B2/en not_active Expired - Fee Related
- 2002-05-31 CZ CZ20033305A patent/CZ302060B6/cs not_active IP Right Cessation
- 2002-05-31 PL PL365799A patent/PL199079B1/pl unknown
- 2002-05-31 PT PT02745339T patent/PT1392520E/pt unknown
- 2002-05-31 EP EP20020745339 patent/EP1392520B1/de not_active Expired - Lifetime
- 2002-05-31 DE DE50203685T patent/DE50203685D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CZ302060B6 (cs) | 2010-09-22 |
ATE299803T1 (de) | 2005-08-15 |
WO2002100653A1 (de) | 2002-12-19 |
DE10127981C1 (de) | 2003-01-16 |
DE50203685D1 (de) | 2005-08-25 |
JP2004528213A (ja) | 2004-09-16 |
ES2246014T3 (es) | 2006-02-01 |
EP1392520A1 (de) | 2004-03-03 |
PT1392520E (pt) | 2005-11-30 |
US20040135365A1 (en) | 2004-07-15 |
CZ20033305A3 (cs) | 2004-04-14 |
JP4384487B2 (ja) | 2009-12-16 |
PL199079B1 (pl) | 2008-08-29 |
PL365799A1 (en) | 2005-01-10 |
TW577833B (en) | 2004-03-01 |
US7144617B2 (en) | 2006-12-05 |
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