EP2731802A1 - Optisch variables element, insbesondere sicherheitselement für einen datenträger - Google Patents
Optisch variables element, insbesondere sicherheitselement für einen datenträgerInfo
- Publication number
- EP2731802A1 EP2731802A1 EP12735096.5A EP12735096A EP2731802A1 EP 2731802 A1 EP2731802 A1 EP 2731802A1 EP 12735096 A EP12735096 A EP 12735096A EP 2731802 A1 EP2731802 A1 EP 2731802A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- variable element
- optically variable
- element according
- optically
- facets
- 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.)
- Granted
Links
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
- B42D25/20—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
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- 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
- B42D25/373—Metallic 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
-
- 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
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F7/00—Designs imitating three-dimensional [3D] effects
Definitions
- the invention relates to an optically variable element, in particular security element for a data carrier.
- Data carriers such as valuables, identity documents, or valuables, such as branded articles, are often provided with an optically variable element for the purpose of protection, which allows verification of the authenticity of the data carrier and at the same time serves as protection against unauthorized reproduction.
- the optically variable element has an optical effect which varies, for example, when the viewing direction changes, and which can not be copied with conventional copiers.
- the object of the invention is to provide an optically variable element, in particular a security element for a data carrier, which combines high security against counterfeiting with good visibility and easier verifiability.
- an optically variable element in particular a security element for a data carrier, having a substrate which has a motif-forming section with a first partial region, which is produced by means of engraving, and a second partial region, which is not produced by intaglio printing , wherein the two partial areas are visually perceptible as protruding and / or receding, the optically perceptible and the haptic detectable impression of the first partial area coincide, and the visually perceptible and the haptic detectable impression of the second partial area do not match.
- an optically variable element which is optically very attractive due to the optically protruding and / or recessed portions and in which, surprisingly, the haptically detectable impression coincides with the optically perceivable impression only for the first portion and not for the second portion.
- This variation of the haptic or tactile perception of the motif-forming section produces a high recognition value and leads to an easy verifiability of the authenticity of the optically variable element.
- a subregion which can be perceived visually as protruding and / or receding is understood in particular to mean that the corresponding subregion can be perceived as a continuously curved surface.
- the partial area can be perceived visually with a curvature that deviates from the curvature or actual spatial form of the reflective layer in the area of the corresponding partial area.
- a correspondingly curved surface can be imitated by adjusting the corresponding reflection behavior.
- the two partial regions can each be designed as a contiguous region. However, it is also possible for the subareas to have gaps or even to include non-contiguous sections. In particular, the two subareas may be interleaved with each other and / or with other security features. Furthermore, one of the two partial areas can surround the other of the two partial areas.
- the motif-forming section in the second partial area can have a multiplicity of facets, which thus orientate are that for a viewer optically a surface is perceptible, the front of the macroscopic spatial form of the motif-forming section in the second partial area and / or jumps back.
- a real curved surface (reflective and / or transmittive) can be imitated with the second partial region.
- imaging area Such an area is hereinafter referred to as "imaginary area.”
- imaging area For example, such an imaginary area may be perceived as a rotating mirror which rotates the visible mirror image by 90 °, for example very easily optically detectable and verified.
- any real arched reflecting and / or transmitting surface can be modified into an imaginary surface by means of the second subregion of the optically variable element according to the invention.
- This can be z. B. be realized in that the azimuth angle of all facets are changed, for example, be rotated by a certain angle.
- This can be interesting effects. If, for example, all azimuth angles are turned 45 ° to the right, a surface area for a viewer, when illuminated directly from above, is a curved surface that is apparently illuminated from the top right. Twisting all the azimuth angles by 90 °, the light reflections move when tilted in a direction that is perpendicular to the direction that a viewer would expect.
- the orientations of a plurality of facets can be changed relative to the orientations for producing the perceptible and / or recessed perceivable surface such that the perceptible and / or recessed perceivable surface is still perceptible, but with a matt appearing surface , In the same way, a glittering effect can be generated.
- the following procedure can be used to produce such a matt or glittering surface:
- the change in the orientations of several facets is given by a random deviation from a given desired orientation within certain limits.
- several adjacent facets may differ by the same random deviation from the desired orientation.
- a matt appearing surface or even a glittering surface eg. H. Surface with glittering effect, generated.
- An optically variable element with such a matt or glittering perceptible surface has a very high re-recognition value and thus a very high security against counterfeiting.
- the facets may be formed as achromatic facets. This is understood in particular to mean that the reflection behavior of the facets is conditioned or at least dominated by radiation-optical effects.
- the facets do not act or hardly act as a diffractive structure.
- the maximum embossing depth of intaglio printing in the first subarea can be at least 20 ⁇ m, preferably at least 40 ⁇ m, and particularly preferably at least 70 ⁇ m. Such an embossing depth is easy to capture haptically.
- the maximum height difference of the relief structures in the second subregion smaller than 15 ⁇ , preferably less than 10 ⁇ and particularly preferably less than 5 ⁇ be. Such a maximum height difference is so small that it can not be detected haptically or hardly (and as a rule as unstructured roughness).
- the second subarea can optically present a height difference, wherein the actual structure height in the second subarea is smaller by at least a factor 3, preferably by a factor of 5 and particularly preferably by a factor of 10, than it appears optically. This ensures that the visually perceptible and the haptic detectable impression of the second portion do not match.
- the optically variable element can be designed so that the second portion acts haptically flat.
- the first partial region can be produced in particular by blind embossing. Furthermore, the first portion can be formed by blind embossing on metallic appearing, fb rocking and / or iridescent background.
- the first partial region can be reflective.
- the optically variable element can be designed such that the two subareas present the same relief representations, synonymous related motifs, a coherent motif and / or combined motifs. So z. B. the first portion of a tactile tactile arc and the second portion of a show vaulted, but tactile not felt violin. It is also possible that the two sections together a motif, such. As a violin, offer, in which case only the part of the subject from the first sub-area and haptic in accordance with the visually perceptible impression is detected.
- the first portion may be at least partially embossed by intaglio over the second portion.
- This z. For example, a deliberate destruction (embossing loss) in the second subarea may be desired, so that the first subarea is optically in front of the second subarea and is not half translucent.
- the second subregion may have microstructures which mimic the reflection and / or refraction behavior of a curved surface.
- the microstructures can be at least one element of the following group: Fresnel structures, reflective sawtooth gratings or facets, diffractive elements for concavity imitation (for example animat), Moire magnifiers and modulo mappers, in particular with metallized microstructures.
- animat is here understood in particular that a viewing angle-dependent appearance is present, resulting in a change in the viewing angle, a visible movement effect. Examples of this are described, for example, in WO 2007/107235 A1.
- the microstructures can be embossed in an embossing lacquer.
- a reflective or reflection-enhancing coating in particular a metallization, color-shifting coating (the perceivable color depends on the viewing angle), a high-index coating and / or a coating with a Have color that has reflective pigment platelets, so that the pigment platelets are aligned approximately parallel to the microscopic relief.
- the second portion may be transparent.
- it may have a partially permeable coating (eg a screened or a very thin metallization) and / or have a surface-tilting coating when viewed and / or reviewed. It is also possible to provide a metallized motif next to demetallized areas.
- the optically variable element may in particular be designed as a security thread, tear-open thread, security tape, security strip, patch or as a label for application to a security paper, value document or the like.
- the optically variable element can span transparent or at least translucent areas or recesses.
- security paper is understood in particular the not yet workable precursor to a value document, in addition to the optically variable element according to the invention, for example, other authenticity features such.
- B. provided in volume luminescent substances may have.
- Value documents are here understood, on the one hand, documents produced from security paper.
- value documents can also be other documents and articles that can be provided with the optically variable element according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and at the same time unwanted copying is prevented.
- a data carrier with an optically variable element according to the invention including all mentioned developments of the optically variable element according to the invention).
- the volume may be a value, ID, security, or other valuable item.
- a plastic material can be used as a material for the substrate of the optically variable element and / or for the data carrier (such as a banknote).
- a paper substrate is possible.
- So can paper with synthetic fibers d. H. Paper with a content of x polymeric material in the range of 0 ⁇ x ⁇ 100% by weight, a plastic film, eg. As a film of polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN), polypropylene (PP) or polyamide (PA), or a multilayer composite, in particular a composite of several different films (composite composite ) or a paper-film composite (foil / paper / foil or paper / foil / paper).
- the optically variable element may be provided in, on or between each of the layers of such a multilayer composite.
- FIG. 1 is a plan view of a banknote with an optically variable element V according to the invention
- FIG. 2 is an enlarged sectional view of the optically variable element 1 along the section line D-D in FIG. 1;
- Fig. 3 is a sectional view of the optically variable element of another
- FIG. 4 shows a plan view of a further embodiment of the optically variable element according to the invention.
- Fig. 5 is a plan view of another embodiment of the variable element according to the invention.
- Fig. 6 is a plan view of another embodiment of the optically variable element according to the invention.
- the optically variable element 1 is applied to the front of a banknote 2 shown in FIG. 1 and serves as a security element or security feature in order to be able to check the authenticity of the banknote 2.
- the optically variable element or the security element 1 is designed as a reflective security element 1 with a rectangular outer contour and has a motif 3 (here letter combination AB) with a first portion 4 (A) and on the second portion 5 (B).
- the security element 1 comprises a substrate 6 with a reflective layer 7 in the first subregion 4.
- the upper side of the reflective surface facing away from the substrate 6 Layer 7 is embossed by means of a gravure printing process and thus has a surface structuring.
- the surface structuring in the first subregion 4 is chosen so that the letter A is visually perceptible as projecting relative to the substrate 6.
- the height or embossing depth dl and the lateral dimension of the elevation 8 are selected so that the haptic detectable impression coincides with the optical. Thus, when one sweeps over the first portion 4 with his finger, one feels the raised letter A.
- the maximum height dl of the elevation 8 can be, for example, 80 .mu.m, and the height profile can preferably be continuous. In this case, there is a particularly good tactility.
- the layer 7 can not only be formed as a metallic layer, but as a metallic appearing layer which is applied by printing technology (eg by screen printing, flexographic printing, indirect high-pressure, offset printing or inkjet), so that after the intaglio printing the first subregion 4 is optically as a coin-like metallic appearing relief is perceptible.
- printing technology eg by screen printing, flexographic printing, indirect high-pressure, offset printing or inkjet
- an optically variable color may alternatively be used. It is also possible to combine different colors with each other, so that, for example, the embossed first portion 4 appears multicolored.
- a plurality of reflective facets 12 may be formed in a resist layer 11 disposed on the substrate 6.
- the reflective facets 12 are arranged and oriented such that they adjust a reflective surface 13 for a viewer, which appears arched in relation to the actual macroscopic spatial form of the lacquer layer 11 or of the substrate 6.
- the reflective surface 13 is the letter B, wherein the reflective surface 13 is indicated in the sectional view in Fig. 2 by a dashed line.
- This optical effect of the adjustment of the reflective surface 13 is achieved in that the inclination of the facets 12 is selected depending on their lateral position so that incident light is reflected at the facets 12 in the same direction, in which a curved surface 13, the light would reflect.
- the incident light beam 15 is reflected in the direction 16, which is parallel to the direction 16 ', which would correspond to the direction of reflection at the surface 13.
- These directions 18 and 20 are parallel to the directions 18 'and 20', which would be the reflection directions on reflection at the surface 13.
- the maximum height d2 and the maximum dimension of the facets 12 are preferably chosen such that an observer can not resolve the facets 12 with his unaided eye.
- the preferred embodiment shown in FIG. The form of contact has facets 12 which are arranged periodically with a substantially constant period. Also, the facets 12 of this embodiment have a height that varies laterally. An observer therefore concludes from the reflection behavior of the second subregion 5 that the curved surface 13 is present in the second subregion 5 at a height d3 which is significantly greater than the maximum height d2 of the facets 12 and approximately the height dl of the elevation 8 in the first Part 4 corresponds.
- the reflection behavior indicates that the local surface normal points in the direction 21, which is clearly different from the macroscopic surface normal (arrow 22) of the lacquer layer 11.
- this impression can also be referred to as a "2 V2" -dimensional representation or relief-like representation Due to the small dimensions of the individual facets 12, the haptically detectable impression of the second subregion 5 differs significantly from the optically perceptible impression However, when touching the second subregion 5, it will essentially feel or feel only a flat surface.
- the maximum height d2 of the facets may be less than 15 pm. It is preferably less than 10 ⁇ m and in particular less than 5 ⁇ m.
- the facets 12 can be exposed, for example by means of grayscale lithography known from the prior art, as an original in a photoresist, galvanically molded and then embossed, for example, in the radiation-curing and / or thermoplastic lacquer 11.
- the lacquer 11 can for example be applied directly to the substrate 6 or else strip on a film strip, in particular a laminate or transfer, provided and then transferred from this to the substrate.
- these may be provided with a reflection-enhancing coating. They can be metallized, for example.
- the coating on the facets 12 can also be color-shifting at least in regions, for example by applying suitable liquid crystals or vapor deposition with a reflector / dielectric / absorber thin-film system.
- Fig. 3 the sectional view of an alternative embodiment is shown, in which the facets 12 are at least partially made transparent and for example, are located in a window portion 25 of the substrate 6, wherein the substrate 6 may be the substrate of a banknote.
- the second portion 5 thus appears as a lens-like object having a surface relief according to curve 26.
- the relief in the first portion 4 according to the invention is clearly tactile.
- the lenticular-like relief turns out to be a thin film in which the visually visible curvature can not be felt.
- reflective facets can also be used in the window region 25 as in the first embodiment.
- the area around the facets 12 can be demetallized.
- the facets 12 can also be provided with a semitransparent coating (for example screened or a very thin metallization, in particular also a partially permeable, f arbkippende coating).
- any vault-imitating structures may be used in which the optically perceivable and haptically detectable impression do not match.
- the corresponding structures can be embossed, but not by intaglio printing.
- a lacquer 11 is embossed which is radiation-curing or thermoplastic.
- the paint 11 may be applied directly to the substrate 6. It is also possible that the paint 11 is applied to a film, which is then attached to the substrate 6.
- the lacquer 11 may be present on a transfer film, from which the structures are transferred to the substrate 6 in a known manner.
- the substrate 6 can be embossed directly.
- the microstructures of the second subregion 5 can be in a multilayer structure.
- the microstructures can come to rest on the inside of an outer film and thus be better protected from external influences.
- the microstructures forming the second subregion 5 can be formed between two outer foils of a polymer banknote or between paper and foil layer of a hybrid banknote.
- the entire carrier core of the substrate 6 may contain the microstructures forming the second subregion 5, which are protected by a superposed foil.
- FIG. 4 shows a further example of the arrangement of the two partial regions 4, 5.
- the embossed relief of the first portion 4 here in the form of the letter A
- a merely arched appearing second portion 5 which here has the shape of a domed ring with, for example, arched appearing letter B.
- the actually arched motif A lies in front of a merely arched appearance Background with a plurality of letters B (second sub-area 5).
- the motif B could here be, for example, a sea-like landscape formed from microscopically small facets, and the motif A can be, for example, a ship embossed in intaglio printing over the second partial area (letter B). In this case, a deliberate destruction (stamping loss) may be present in the second subregion 5.
- the ship can lie on the water and not appear semi-translucent.
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Printing Methods (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011107154A DE102011107154A1 (de) | 2011-07-14 | 2011-07-14 | Optisch variables Element, insbesondere Sicherheitselement für einen Datenträger |
| PCT/EP2012/002901 WO2013007374A1 (de) | 2011-07-14 | 2012-07-10 | Optisch variables element, insbesondere sicherheitselement für einen datenträger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2731802A1 true EP2731802A1 (de) | 2014-05-21 |
| EP2731802B1 EP2731802B1 (de) | 2017-02-08 |
Family
ID=46508313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12735096.5A Active EP2731802B1 (de) | 2011-07-14 | 2012-07-10 | Optisch variables element, insbesondere sicherheitselement für einen datenträger |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2731802B1 (de) |
| CN (1) | CN103648791B (de) |
| AU (1) | AU2012283462B2 (de) |
| DE (1) | DE102011107154A1 (de) |
| WO (1) | WO2013007374A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013021358A1 (de) | 2013-12-16 | 2015-06-18 | Giesecke & Devrient Gmbh | Sicherheitselement für Sicherheitspapiere |
| WO2016065331A2 (en) | 2014-10-24 | 2016-04-28 | Wavefront Technology, Inc. | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products |
| DE102015100280A1 (de) | 2015-01-09 | 2016-07-14 | Ovd Kinegram Ag | Verfahren zur Herstellung von Sicherheitselementen sowie Sicherheitselemente |
| WO2017011476A1 (en) | 2015-07-13 | 2017-01-19 | Wavefront Technology, Inc. | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products |
| US12589611B2 (en) | 2016-04-22 | 2026-03-31 | Hueck Folien Gesellschaft M.B.H. | Optical switch devices |
| CA3015684C (en) | 2016-04-22 | 2025-09-09 | Hueck Folien Gesellschaft M.B.H. | OPTICAL SWITCHING DEVICES |
| DE102017006507A1 (de) | 2017-07-10 | 2019-01-10 | Giesecke+Devrient Currency Technology Gmbh | Strukturelement |
| WO2019077419A1 (en) | 2017-10-20 | 2019-04-25 | Wavefront Technology, Inc. | OPTICAL SWITCH DEVICES |
| EP4249281B1 (de) * | 2019-01-07 | 2025-04-16 | Toppan Printing Co., Ltd. | Anzeigekörper und etikettierte drucksache |
| CA3134512A1 (en) | 2019-04-19 | 2020-10-22 | Wavefront Technology, Inc. | Optical switch devices |
| WO2022077012A1 (en) | 2020-10-07 | 2022-04-14 | Wavefront Technology, Inc. | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products |
| WO2022077011A1 (en) | 2020-10-07 | 2022-04-14 | Wavefront Technology, Inc. | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19845440A1 (de) * | 1998-10-02 | 2000-04-06 | Giesecke & Devrient Gmbh | Stichtiefdruckverfahren zum vollflächigen Bedrucken großer Flächen |
| DE19963849A1 (de) * | 1999-12-30 | 2001-07-12 | Giesecke & Devrient Gmbh | Datenträger mit gedrucktem Sicherheitselement |
| DE102005061749A1 (de) * | 2005-12-21 | 2007-07-05 | Giesecke & Devrient Gmbh | Optisch variables Sicherheitselement und Verfahren zu seiner Herstellung |
| DE102006012732A1 (de) | 2006-03-17 | 2007-09-20 | Giesecke & Devrient Gmbh | Gitterbild |
| GB0906367D0 (en) * | 2009-04-14 | 2009-05-20 | Rue De Int Ltd | Security document |
| WO2011079347A1 (en) * | 2010-01-04 | 2011-07-07 | Securency International Pty Ltd | Optically variable device |
-
2011
- 2011-07-14 DE DE102011107154A patent/DE102011107154A1/de not_active Withdrawn
-
2012
- 2012-07-10 CN CN201280034924.2A patent/CN103648791B/zh not_active Expired - Fee Related
- 2012-07-10 AU AU2012283462A patent/AU2012283462B2/en not_active Ceased
- 2012-07-10 WO PCT/EP2012/002901 patent/WO2013007374A1/de not_active Ceased
- 2012-07-10 EP EP12735096.5A patent/EP2731802B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013007374A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103648791B (zh) | 2015-11-25 |
| CN103648791A (zh) | 2014-03-19 |
| HK1190991A1 (zh) | 2014-07-18 |
| AU2012283462B2 (en) | 2016-01-28 |
| DE102011107154A1 (de) | 2013-01-17 |
| WO2013007374A1 (de) | 2013-01-17 |
| EP2731802B1 (de) | 2017-02-08 |
| AU2012283462A1 (en) | 2014-02-06 |
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