EP4151427A1 - Procédé de vérification d'un élément de sécurité doté d'un bras de fenêtre - Google Patents

Procédé de vérification d'un élément de sécurité doté d'un bras de fenêtre Download PDF

Info

Publication number: EP4151427A1
Authority: EP; European Patent Office
Prior art keywords: area; window; security element; transparent; image
Prior art date: 2020-10-14
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

Application number

EP22205343.1A

Other languages

German (de)

English (en)

Other versions

EP4151427B1 (fr

Inventor

Alexander IPHÖFER

Andreas Gümmer

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.)

Bundesdruckerei GmbH

Original Assignee

Bundesdruckerei 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.)

2020-10-14

Filing date

2021-10-14

Publication date

2023-03-22

2021-10-14 Application filed by Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH

2023-03-22 Publication of EP4151427A1 publication Critical patent/EP4151427A1/fr

2024-07-03 Application granted granted Critical

2024-07-03 Publication of EP4151427B1 publication Critical patent/EP4151427B1/fr

Status Active legal-status Critical Current

2041-10-14 Anticipated expiration legal-status Critical

Images

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
- B42D25/351—Translucent or partly translucent parts, e.g. windows

Definitions

the invention relates to verification methods for a security element having a security element body in which a window area is formed.
the security element can be a semi-finished product for the production of security documents or a security document itself.
a feature that is intended to prevent imitation, falsification, unauthorized manufacture and/or to guarantee the authenticity and integrity of the item is referred to as a security feature.
a physical object that has such a feature is referred to as a security element.
Typical security elements are, for example, holograms, security threads, but also complete security documents or security document blanks.
One class of security features and security elements provides for them to be checked and/or verified optically, i.e. by means of a visual inspection, the recording of images and their evaluation and/or other optical methods.
different optical features can be used and/or checked.
Such an optical feature is, for example, the ability to transmit light.
Materials through which light can pass almost unhindered, such as clear window panes, are referred to as transparent in the context of what is described here.
Modern security documents which have one or more non-transparent material layers and/or printing, sometimes have a so-called window in which the material is completely transparent in volume from an upper side to an underside.
Introduced markings for example in the form of local blackening by laser inscription and a partial imprint of individual alphanumeric characters or pixels on the inside, do not fundamentally change the property that it is a window.
extensive overprinting of material that is transparent in volume by non-transparent material or coverings by non-transparent material layers result in the corresponding covered or area overprinted area being regarded as a non-transparent area of the corresponding security element.
EP 2 384 901 A1 describes a substrate for the production of documents of value, comprising a first layer with a first degree of transmission, which has at least one recess in the area of which the first layer has a second degree of transmission, which is greater than the first degree of transmission, wherein on a rear side and/or an opaque layer is applied to a front side of the substrate, which has a third degree of transmission, which is smaller than the second degree of transmission.
Corresponding documents of value are also described.
U.S. 4,710,614 describes a security document comprising a substrate containing at least one optical fiber, at least one end of which is flush with a surface of the substrate to allow authentication of the document by a test based on the document being exposed to a source of electromagnetic is exposed to radiation and at the same time observing the radiation transmitted to both ends of the optical fiber.
the optical fiber has a transparent coating and is located within the substrate at a depth of at least one surface of the substrate no greater than the penetration depth of the electromagnetic radiation into the substrate. Radiation penetrating the substrate to the optical fiber is captured in the optical fiber and transmitted to at least one end where it is observed to authenticate the document.
WO 2019/077316 A1 describes a security document with a window area and a non-window area.
the window area is of lower opacity than the non-window area.
the security document comprises a transparent polymer layer at least in the window area of the security document, and the transparent polymer layer comprises an internal laser marking therein, which has an optical effect.
WO 2008/031170 A1 describes a security document and a method of producing a security document in which a radiation-curable ink is applied to at least one side of a substrate containing at least one area of transparent plastic material forming a window or half-window area.
the ink is embossed while soft and cured with radiation to form an embossed security device within the window or half-window area that includes one or more diffractive structures, a lenticular structure, or other security element with a relief structure.
the invention is therefore based on the object of creating a method for verifying security documents with a window area, a security feature that is easy to verify but not easy to imitate.
the invention is based on the general idea of creating a volume area made of transparent material inside the security element, which on the one hand extends from the upper side to an opposite underside of the security element body extending window portion, but internally having a cross-sectional extension between the top and the opposite bottom that is greater than the cross-sectional areas of the window portion of the top and bottom formed to be flush with each other.
This makes it possible for light that passes through the window area to partially reach that area, which is referred to here as the window bracket, which is translucently covered on the top and bottom, so that this transparent area cannot be seen in a plan view.
a transmitted-light observation is an observation or detection of an image of the security element, in which the light source is located on the side of the security element facing the detection.
transmitted-light observation light is thus radiated onto the surface facing away from the viewer or the optical detection device, and that light which is transmitted through the security element body is detected. Due to the fact that the security element body comprises transparent material in the area of the window arm, the transmission through the security element body in the area of the window arm is increased compared to other areas, provided that light is transmitted at all through the security element body.
the window area is the area on a surface of the security element body through which it is possible to see through the security element body, through the transparent material in the interior to the opposite side. Areas in which this is not possible are referred to as non-transparent areas of the called security element body. That non-transparent area under which the window extensions, ie transparent material connected to the see-through window, is located inside is referred to as the extension area.
a transparent material is a material that is clear in volume, possibly colored, but through which imaging according to geometric optics is possible with light of at least one wavelength in the visible wavelength range, i.e. the wavelength range that can be perceived by humans.
imaging according to geometric optics is possible at least for light of some wavelengths in the visible wavelength range if the window area is clear and colored, or for all wavelengths of the visible wavelength range if the transparent material that forms the window area is not colored .
Transmission of light through a layer of material or through a body is the process of light passing through the layer of material or the body, whereby the light can be scattered in the layer of material or the body in the sense of classical optics.
the transmittance of a material layer or body is the ratio of the intensity of the light intensity transmitted through the material layer or body to the light intensity radiated onto the material layer or body.
transmission is also used as a synonym for the degree of transmittance when the process of transmission is viewed as a measurable variable.
the verification method is created in particular for a security element with a security element body which has a window area in which the material of the security element body is transparent between an upper side and an underside, the window area being surrounded and delimited all around by a non-transparent area of the security element body, the Window area merges into a transparent window boom, which extends into the non-transparent area, but the window boom is completely covered in a non-transparent manner both to the top and to the bottom of the security element body.
a method for producing a security element which comprises a security element body with a window area extending from a top to a bottom, which is formed from transparent material, which transitions into a window extension, the transparent material of which completely extends to the top and to the bottom is covered in a non-transparent manner, comprising: providing a core layer which is non-transparent at least in a surface section; introducing a recess into the core layer within the non-transparent surface section, so that the recess is surrounded circumferentially by a non-transparent part of the surface section; inserting transparent material into the recess; non-transparently covering a cantilever portion of the recess to the top and bottom and applying heat to form the security element body.
the core layer itself can consist of a plastic material or also be a composite of several material layers, in which, for example, other elements and security features are integrated.
the security element body has at least one non-transparent core layer with a recess which encloses the window area but is larger than the window area.
the material of the window area which is transparent in volume, thus also extends into a so-called window extension section of the recess in the core layer.
This window cantilever area is completely covered in a non-transparent manner both on the top and on the underside of the security element body.
the contour of the recess can partially be the outer contour of the window area, but is "larger" than the window area in at least one area.
a good and simple covering of the window extension on the upper side and/or on the underside is achieved in an embodiment in which it is provided that the window extension is covered on the upper side by an upper cover layer that is non-transparent in volume and/or on the lower side by a lower cover layer that is non-transparent in volume is.
a layer that is self-supporting before being connected to the core layer and the material of the window bracket is used here as the cover layer viewed.
a pure print layer, made of ink or printing ink, which is not self-supporting, is not considered to be a cover layer in the sense of the description here.
the window extension can be covered on the upper side by a non-transparent upper coating and/or on the lower side by a non-transparent lower coating.
Coatings can be applied, for example, by vapor deposition or by any desired printing process.
the masking can be done by a top masking print or a bottom masking print.
the cover prints or the cover coatings are aligned with one another at a boundary line between the window area and the window bracket. This means that in a vertical plan view, or if the boundaries of the window area are otherwise aligned with respect to another preferred direction, the cover coatings are aligned with one another with respect to the normal or other designated direction.
the window extension can only be recognized by the fact that a part of the inner wall is transparent and not opaque.
the upper and lower cover layer which are also aligned at the boundary line between the window area and the cantilever area with respect to the surface normal or a preferred direction with respect to which the boundary of the window area is aligned.
This manufacturing method ensures that the non-transparent material layers surrounding the window area, for example the upper cover layer and/or the lower cover layer, have the same cutout cross section as the window area of the core layer.
a good, secure connection to the transparent material of the window bracket is achieved, which is first introduced in such a way that it partially protrudes into the window area.
the introduction of the transparent material into the cantilever section in method step (b) is preferably carried out by means of a one-piece cantilever insert. Additionally or alternatively, the transparent material is inserted in method step (f) by means of a one-piece window plug. In both cases it is ensured that the corresponding recess or a section/area can be reliably filled in in a simple manner in the first case of the cantilever section and in the second case of the window area.
the security element or the security element body is a lamination body, which consists of more than the core layer and optionally an upper and/or lower cover layer, preferred embodiments provide that the core layer is applied before and/or after method step (c).
the upper side or the lower side is covered with one or more further layers and are carried out for process steps (d), (e) and (f) as for the one upper covering layer and/or the lower covering layer.
It can thus further layers stacked on top of each other and connected to each other point by point in order to provide them with the recess for the window area at the same time as the other layers. This is preferably done in a punching process.
gaps are not introduced parallel to the surface normal of the respective layers, but at an angle. In this way it can be achieved that inserted transparent pieces of material, such as the cantilever insert or the window plug, are held in spite of the force of gravity when they are assembled in the respective layers, the surfaces of which are oriented parallel to the earth's surface, for example. This makes handling easier.
the material processing is carried out in such a way that the recesses produced have beveled side walls, for example tapering conically along the direction of introduction transversely to the surface of the material layer.
Such recesses with side or boundary walls which are beveled relative to a surface normal of the material layer or the uppermost material layer in the case of several stacked material layers and/or which taper along the recess depth can be produced by means of laser processing or water jet techniques. Correspondingly adapted pieces of material that are inserted can thus be optimally held in the recesses during production.
the inserted pieces of material such as the cantilever insert or the window plug, have correspondingly adapted oblique outer walls or tapering along their material thickness, so that an optimal form fit takes place when inserted into the recesses formed.
Pieces of material to be inserted can be in the form of injection molded parts, for example.
Pieces of material that are inserted into recesses with sloping or funnel-shaped side surfaces do not usually have to be secured by stapling (e.g. adjoining layers to the layer having the recess or to the layer in which they are inserted, and are only secured in a final letterpress -High-temperature lamination process cohesively integrated into the document body.
the assembly of the individual components to form the lamination body is preferably carried out in such a way that the introduction of heat and exertion of pressure takes place with a lamination press to the transparent material with the core layer and to connect the upper covering layer and/or the lower covering layer to form the security element body. If further layers of material are present, these are also connected in this lamination step in the lamination press to form the security element body.
the contours of the recesses in the top cover layer, the bottom cover layer and the core layer, which define the window area, are particularly preferably matched to one another in such a way that in at least one contour section in which there is no window bracket area adjacent to the window area, at every point of an edge of the Recess in the upper cover layer there is a straight line to a corresponding point on an edge of the lower cover layer, the course of which coincides with the contour of the core section.
the recesses are aligned with one another, regardless of whether the outer contour of the transparent window area in the contour section narrows or widens perpendicularly to the outer surface of the security element body, obliquely, conically from the top side of the security document body to a bottom side.
This orientation can also be different in subsections of the at least one contour section. It is crucial for a verification that the alignment of the upper covering layer with the core layer and with the lower covering layer can be checked along the contour section at every point of the at least one contour section.
this at least one contour section covers an angular range of more than 180°, more preferably more than 210°, even more preferably more than 225° of the contour of the window area.
this contour section in which there is no window bracket area next to the window area.
this contour section results in the peripheral contour of the window area.
the transition section is that section of the window contour where the transparent material of the window area transitions into the window bracket area.
the length of the transition section of the peripheral contour of the window area is preferably less than a quarter of the length of the entire peripheral contour of the window area.
the security element body can represent a semi-finished product or a finished security document. If this is produced as a semi-finished product, it is preferred that one or more additional layers that are transparent in volume are applied to the top and/or bottom, which serve, for example, as protective layers or contain additional security features, such as a hologram or the like.
a verification according to the invention of one of the described security elements with a window area that merges into a hidden window extension is carried out according to one embodiment of a verification method in that verification light is radiated into the window area of the security element, at least one image of the top or bottom is detected, which includes at least one area next to the window area, and the image is examined for differences in brightness in the area next to the window area, the security element being classified as authentic if an area with increased brightness is found that borders on the window area and the Verification decision is issued.
the output can be in the form of a signal, for example.
the signal can be used, for example, to control an access device such as a door lock or a turnstile.
the verification light can be, for example, the light of a flashlight or the like.
a reference image of the corresponding top or bottom is recorded while no verification light, i.e. preferably no light at all, is irradiated into the window area or alternatively no light is irradiated into the window area in addition to the ambient light, i.e. only ambient light is incident, and during the evaluation of the at least one image, a difference is first formed with the reference image and the differences in brightness are determined in the difference image, with the security element only being classified as authentic if an area with increased brightness which adjoins the window area is found in the difference image.
the image is captured from the side from which the verification light is also irradiated.
the image is captured on the side of the security element that is opposite the side over which the verification light is radiated. If the verification light is irradiated from the top, the image is captured from the bottom and vice versa.
a reference image can be recorded and included in the evaluation.
a further development analyzes the shape of the area with increased brightness and compares it with predefined shapes. If the shape matches a predetermined shape, the security element is classified as genuine, otherwise as not genuine.
security elements can be differentiated into groups or classes and assigned to them on the basis of correspondence with one of the predefined forms.
the at least one image is captured from the side opposite the side on which the verification light is irradiated, if a light cone of the verification light or an irradiation area of the verification light completely or partially covers the contour section of the window area, it can be checked in the image whether the recesses of the core layer and the cover layers are aligned with one another. In this case, there are no fluctuations in brightness in the contour, except in the transition area into the window bracket(s).
the verification light preferably has a higher light intensity, preferably a higher light intensity by at least an integer factor, than the ambient light impinging on the rest of the outside during the acquisition of the at least one image.
the verification light is preferably radiated only into the window area or into the window area and at the same time into as small an area as possible around the window area.
a flashlight or a flashlight is preferably placed on the outside so that the verification light irradiation is as far as possible only on the window area or on areas around the window area in which no window bar is expected or which should not be evaluated for the presence of a window bar.
the verification can be carried out one after the other for different areas adjacent to the window area by changing the irradiation of the verification light.
the light source particularly preferably has a light exit surface whose shape is adapted to the shape of the window area. It can either be smaller than or equal to the area, or slightly larger, so that the peripheral contour of the window area is also illuminated.
the security element has a different transmittance between the top and the window bracket area than between the bottom and the window bracket area.
the verification is carried out once by capturing the at least one image from the top and once by capturing the at least one image from the bottom.
the side of irradiation of the verification light is also changed accordingly. Based on the differences in brightness, with otherwise identical irradiation of the verification light, it can be checked whether the determined areas with increased brightness have a difference in brightness. If this is the case, the security element is verified as genuine if such a difference in brightness is expected, otherwise as false.
the difference in brightness between the two compared areas with increased brightness can also be evaluated and compared with specifications.
the window extension area is not transparently covered, at least on the top or bottom, so that there is a minimum level of transmission for verification light, so that an area of increased brightness during verification is achieved by irradiation of verification light into the window area is detectable.
a schematic plan view of a security element 1 is shown.
the security element 1 is designed as a security document 10 .
the security element 1 has a non-transparent area 26 which completely encloses and delimits a window area 25 .
the security element 1 is "opaque".
the window area 25 is transparent from an upper side 21 to an underside 22, which faces the plane of the drawing, so that it is possible to look through the window area 25 to information lying underneath.
a window extension is formed which consists of transparent material which merges into the transparent material 51 of the window area 25 .
the window bracket 60 which is located inside the bracket area 27 , is not transparently covered by the upper side 21 or the lower side 22 .
the window extension 60 is therefore only shown in dashed lines in this view, since it cannot be seen through the non-transparent cover either from the top 21 or from the bottom 22 when viewed from above.
transmission in the display area 27 is generally greater than in the rest of the non-transparent area 26. This is increased even more when light enters the window area 25 and enters the window bracket 60 partially through the transparent material 51 inside.
FIG. 1 is a schematic sectional view through the security element 1 according to FIG 1 shown.
the transparent material 51 in the window area 25, which merges into the window bracket 60, is clearly visible. This is covered by an upper cover layer 70 on the upper side 21 and by the lower cover layer 80 on the underside 22 .
the extension area is therefore not immediately recognizable when the security element 1 is viewed from above.
the recesses 73 in the upper cover layer 70 and 83 in the lower cover layer 80 are identical to a window area 42 of the recess 40, which is however larger and also includes the offshoot section 41 in the core layer 30, which is non-transparent.
the core layer 30, the top cover layer 100 and the bottom cover layer 110 are all made non-transparent.
the window 50 in the window area 25 and the cantilever 60 in the cantilever area 26 are made of transparent material.
the transparent material in the area of the cantilever 60 does not have to be identical to the transparent material of the window area 25 . However, it is necessary that this material should blend without a gap. This allows light to pass from the window 50 into the window bracket 60 .
it will be the same material, in particular a transparent plastic material, particularly preferably polycarbonate.
the core layer 30 and the top cover layer 70 and the bottom cover layer 80 are preferably made of a plastic material, more preferably the same material as the window 50 and the window bracket 60.
Both the core layer and the upper cover layer 70 or the lower cover layer 80 can be multi-layered, ie they can be composite products made up of several layers. In addition, these can contain a large number of different security features and/or security elements.
3 1 is the schematic top view of the underside of the security element 1 1 and 2 shown.
the non-transparent area 26 can be seen, which covers the boom area and encloses and delimits the window area 25 .
the underside 22 of the security element 1 is also non-transparent in the extension area 27 .
a sectional view of a further security element 1 is shown schematically.
This includes a core layer 30 with a recess 40 which is filled with transparent material 51 .
the core layer is non-transparent, preferably opaque.
the transparent material 51 is covered in the boom section 41 of the recess 40 on the top 21 by a top coating 100, for example a top cover print 101, and on the bottom 22 by a bottom coating 110, for example a bottom cover print 111, in each case non-transparent.
a top coating 100 for example a top cover print 101
a bottom coating 110 for example a bottom cover print 111
FIG 5 a further embodiment of a security element is shown schematically. This differs from the embodiment 4 in that the top coating 100 for covering and the bottom coating 110 for covering are respectively on a transparent top protective layer 150 and a bottom Protective layer 160 is applied.
the printing to form one of the coatings 100, 110 on the upper or lower protective layer 150, 160 can either be on the side facing the core layer 30, as shown for the lower protective layer 160, or on the side facing away from the core layer 30, as for the upper protective layer 150 shown may be applied.
the security elements 1 shown in the figures are preferably security document blanks which are combined with further layers to form a security document body. However, they can also be ready-made security documents.
a core layer 30 has a cavity 40 with a window area 42 and a cantilever portion 41 .
the boom area 40 is filled with transparent material in the form of a boom insert 61 , the boom insert being made of transparent material and slightly larger than the boom portion of the recess 40 .
a part of the cantilever insert 61 thus protrudes into the window area of the recess or the future window area.
the core layer 30 and the window cantilever insert 61 are covered with a data information layer 90, which is not transparent over its entire surface. These are connected to each other at points.
the recess 40 is then widened in such a way that the window area is given its final shape.
an information layer gap 94 is produced in the information layer. Their edges are aligned with the window area 42 of the recess 40 in the core layer 30.
part of the window extension insert 61 is also severed in order to ensure a clean connection between the transparent material of the window extension 60 and the material that covers the window area 42 of the recess 40 and the Window recess 94 in the information layer 90 filled.
a transparent window plug 53 is simultaneously inserted into the information layer 90 and the core layer 30 or their window openings 94, 42.
an upper intermediate layer 180 and a lower intermediate layer 190 are joined to the core layer 30 and the information layer 90, with a non-transparent imprint 192 being applied to the lower intermediate layer 190, which leaves out the window area 25 precisely.
An upper protective layer 150 is provided on an upper side 21 and a lower protective layer 160 is provided on the underside 22 . All of these layers are heated in a final lamination step and combined to form a security element body.
a material layer that is not transparent in volume could also be provided below the core layer 30, in which a window cutout is made at the same time as the cutout 40 in the core layer is widened and the window cutout 94 in the information layer is made, after this further Layer has also been selectively connected to the others before forming the recess.
the information layer 90 is also the core layer 30 at the same time, into which the recess 40 is introduced. This includes the window area 42 and the extension section 41.
the recess is filled with a one-piece transparent window extension insert 61.
a transparent upper intermediate layer 180 which is printed in a non-transparent manner at least in the boom area 27, and an upper transparent protective layer 150 are arranged on the upper side.
the upper intermediate layer and the further lower intermediate layer can be omitted and the extension area can be overprinted on the protective layer of the upper protective layer or the transparent insert directly or towards the underside on the intermediate layer, the extension or the lower protective layer.
FIG. 8 1 is a schematic top view of a resulting security document 10 with a window area 25, together with an enlarged detail of the window 50, in which a projection 62 of the window extension 60, which extends into the non-transparent area of the security element, can be seen.
the cavities in the various illustrated embodiments have side or boundary surfaces oriented perpendicular to the surfaces of each of the various layers, this is primarily due to one attributed to simplified representation.
cutouts with vertically oriented side surfaces represent possible embodiments, cutouts that are formed with inclined, in particular tapering, side surfaces are preferred.
one-piece pieces of material to be inserted which are provided for filling the recess, can be optimally held during production. These have correspondingly adapted oblique or likewise tapered side surfaces.
a flowchart of a verification method is shown as an example.
Optional features are shown in dashed lines.
first a reference image of an underside of a security element for example a security document as in 8 , recorded.
the reference image or a further reference image could also be captured from the top.
No verification light is radiated here.
the security element can be uniformly illuminated with ambient light.
Verification light is then radiated 210 into the window area, the intensity of which is higher than the intensity of the ambient light, if such is present.
the irradiation takes place, for example, via the top. Alternatively, it could also be done via the underside of the security element.
At least one image of the security element is then recorded 220, which comprises at least one area next to the window area, preferably also the window area. If a reference image was captured, the image is captured from the page from which the reference image was captured. This can be the side from which the light irradiated or the opposite side.
the at least one image is evaluated for differences in brightness in an area next to the window area and an area or several areas with increased brightness are searched for that border on the window area 230. If a reference image was recorded, a difference image is formed during the evaluation and the differences in brightness are in the difference image examined 240.
the security element is classified 260 on the basis of a result of the check. For example, the security element is classified as genuine if an area of increased brightness that merges into the window area was found, and otherwise as not genuine.
a verification decision based on the classification is output 270. This can be used, for example, to control an access device.
the shape of the area with increased brightness can be determined 280 and compared 290 with a predefined shape or multiple predefined shapes. The result of this comparison can also be taken into account in the classification 260 . If, for example, there is no match with the predefined shape or one of the several predefined shapes, then the security element is classified as not genuine.
An additional verification step can provide for the verification light to be irradiated during the acquisition of the at least one image or during the acquisition of a further image 300 in such a way that a narrow strip of the area around the window area is irradiated with the verification light along at least one contour section of the window area.
the window contour is now examined 310 for brightness fluctuations outside a transition area from areas of increased brightness to the window area. If such are found, this is an indication that the gaps in the core layer and covers, e.g. the cover layers, are not aligned. A document is then also classified as not genuine in step 260 if such brightness fluctuations are found.
the verification can be carried out from one side, ie with the irradiation of the verification light and the capture of the at least one image from the same side of the security element.
This examination is particularly advantageous for uncovering apparent forgeries that can simulate a similar effect in transmitted light. Only the examination of the contour of the window area is improved when this is carried out in such a way that the light is radiated in from the side opposite to the side from which the at least one image is captured.
Examining whether the contours of the various recesses that define the window section are correctly aligned with one another, if necessary also in different directions in sections, can form an independent or supplementary verification method. This verification can also be carried out using other optical means, for example a magnifying glass or a microscope.

Landscapes

Credit Cards Or The Like (AREA)
Laminated Bodies (AREA)
Burglar Alarm Systems (AREA)

EP22205343.1A 2020-10-14 2021-10-14 Procédé de vérification d'un élément de sécurité doté d'un bras de fenêtre Active EP4151427B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102020212977.0A DE102020212977A1 (de)	2020-10-14	2020-10-14	Sicherheitselement mit Fensterausleger und Verfahren zur Herstellung
EP21202733.8A EP3984762B1 (fr)	2020-10-14	2021-10-14	Procédé de fabrication d'un élément de sécurité

Related Parent Applications (2)

Application Number	Title	Priority Date	Filing Date
EP21202733.8A Division EP3984762B1 (fr)	2020-10-14	2021-10-14	Procédé de fabrication d'un élément de sécurité
EP21202733.8A Division-Into EP3984762B1 (fr)	2020-10-14	2021-10-14	Procédé de fabrication d'un élément de sécurité

Publications (2)

Publication Number	Publication Date
EP4151427A1 true EP4151427A1 (fr)	2023-03-22
EP4151427B1 EP4151427B1 (fr)	2024-07-03

Family

ID=78211996

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP21202733.8A Active EP3984762B1 (fr)	2020-10-14	2021-10-14	Procédé de fabrication d'un élément de sécurité
EP22205343.1A Active EP4151427B1 (fr)	2020-10-14	2021-10-14	Procédé de vérification d'un élément de sécurité doté d'un bras de fenêtre

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
EP21202733.8A Active EP3984762B1 (fr)	2020-10-14	2021-10-14	Procédé de fabrication d'un élément de sécurité

Country Status (2)

Country	Link
EP (2)	EP3984762B1 (fr)
DE (1)	DE102020212977A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102021114246A1 (de)	2021-06-01	2022-12-01	Bundesdruckerei Gmbh	Karte und Verfahren zur Herstellung einer Karte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4710614A (en)	1985-06-24	1987-12-01	Arjomari-Prioux	Security document using optical fibers and authentication method
WO2008031170A1 (fr)	2006-09-15	2008-03-20	Securency International Pty Ltd	Dispositifs de sécurité à encre en relief séchable par rayonnement destinés à des documents sécurisés
EP2384901A1 (fr)	2010-05-04	2011-11-09	Giesecke & Devrient GmbH	Document de valeur doté d'une exception
DE102016203609A1 (de)	2016-03-04	2017-09-07	Bundesdruckerei Gmbh	Sicherheitsgegenstand mit dynamischem und statischem Fenstersicherheitsmerkmal und Verfahren zur Herstellung
WO2019077316A1 (fr)	2017-10-19	2019-04-25	De La Rue International Limited	Documents de sécurité et leurs procédés de fabrication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102005039319A1 (de)	2005-08-19	2007-02-22	Giesecke & Devrient Gmbh	Kartenförmiger Datenträger
DE102013016901A1 (de)	2013-10-11	2015-04-16	Giesecke & Devrient Gmbh	Verfahren und Vorrichtung zum Herstellen eines Wertdokumentensubstrats

2020
- 2020-10-14 DE DE102020212977.0A patent/DE102020212977A1/de active Pending
2021
- 2021-10-14 EP EP21202733.8A patent/EP3984762B1/fr active Active
- 2021-10-14 EP EP22205343.1A patent/EP4151427B1/fr active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4710614A (en)	1985-06-24	1987-12-01	Arjomari-Prioux	Security document using optical fibers and authentication method
WO2008031170A1 (fr)	2006-09-15	2008-03-20	Securency International Pty Ltd	Dispositifs de sécurité à encre en relief séchable par rayonnement destinés à des documents sécurisés
EP2384901A1 (fr)	2010-05-04	2011-11-09	Giesecke & Devrient GmbH	Document de valeur doté d'une exception
DE102016203609A1 (de)	2016-03-04	2017-09-07	Bundesdruckerei Gmbh	Sicherheitsgegenstand mit dynamischem und statischem Fenstersicherheitsmerkmal und Verfahren zur Herstellung
WO2019077316A1 (fr)	2017-10-19	2019-04-25	De La Rue International Limited	Documents de sécurité et leurs procédés de fabrication

Also Published As

Publication number	Publication date
EP3984762A1 (fr)	2022-04-20
EP4151427B1 (fr)	2024-07-03
DE102020212977A1 (de)	2022-04-14
EP3984762B1 (fr)	2023-12-13

Publication	Publication Date	Title
DE3840557C2 (fr)	1991-07-04
DE69719052T2 (de)	2004-01-22	Banknoten mit sicherheitsmerkmal und verfahren zu deren herstellung
EP1979768B1 (fr)	2018-09-26	Corps multicouches dote d'un systeme de microlentilles
EP2681054B1 (fr)	2014-09-10	Corps composite et procédé de production d'un corps composite muni d'un signe de sécurité située à l'intérieur
DE112010003177B4 (de)	2021-08-19	Gehäuse mit integrierter Schaltung mit Sicherheitsmerkmal und Verfahren zu dessen Herstellung
CH640788A5 (de)	1984-01-31	Ausweiskarte und verfahren zu ihrer herstellung.
DE3634857A1 (de)	1987-04-30	Ausweiskarte mit visuell sichtbarem echtheitsmerkmal und verfahren zur herstellung derselben
DE112012002714T5 (de)	2014-03-27	Verbesserungen an Sicherheitsvorrichtungen, die farbverschiebende Druckfarben beinhalten
EP2566702B1 (fr)	2014-11-26	Support de données doté d'un substrat en polymère présentant une zone à motif
EP3984762B1 (fr)	2023-12-13	Procédé de fabrication d'un élément de sécurité
EP1509402A2 (fr)	2005-03-02	Document de valeur a zone de securite optique
EP4436786A1 (fr)	2024-10-02	Élément de sécurité pour un document d'identification, document d'identification et procédé de fabrication d'un élément de sécurité
AT517776A2 (de)	2017-04-15	Sicherheitsdokument, umfassend eine Folie mit Interferenzeffekten, Verfahren zur Bestimmung der Echtheit eines solchen Dokuments und Vorrichtung zur Durchführung eines solchen Verfahrens
DE102019113651B4 (de)	2021-02-04	Sicherheitselement mit anamorph veränderter Abbildung
DE102023108753B3 (de)	2024-08-01	Verfahren zum Prüfen eines Sicherheitsdokuments
EP3967510B1 (fr)	2023-09-27	Document de sécurité pourvu de marque de sûreté en fonction du sens d'observation
EP2710564B1 (fr)	2021-02-24	Procédé et dispositif de vérification de documents de sécurité à l'aide d'une interférométrie à lumière blanche
DE102018131818A1 (de)	2020-06-18	Verfahren zum Herstellen eines Laminats und Laminat sowie Sicherheits- oder Wertdokument mit einem innenliegenden Sicherheitsmerkmal
DE102020133863B4 (de)	2023-06-29	Wert- oder sicherheitsprodukt sowie verfahren zu dessen herstellung
DE102010024459A1 (de)	2011-12-22	Datenträger mit Polymersubstrat mit Motivbereich
DE102021002214A1 (de)	2022-10-27	Sicherheitsmerkmal für ein Wertdokument, Wertdokument und Verfahren zur Herstellung eines Sicherheitsmerkmals
EP3938217A1 (fr)	2022-01-19	Insert de sécurité doté d'un dispositif tactile de vernissage d'un document d'identification et procédé de fabrication d'un tel insert de sécurité
WO2022228730A9 (fr)	2023-03-02	Signe de sécurité pour un document de valeur, document de valeur et procédé de réalisation d'un signe de sécurité
EP4209355A1 (fr)	2023-07-12	Document de sécurité à structure à micro-grille
EP4159464A1 (fr)	2023-04-05	Élément de sécurité caché imprimé dépendant de l'angle

Legal Events

Date	Code	Title	Description
2023-02-17	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2023-02-17	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED
2023-03-22	AC	Divisional application: reference to earlier application	Ref document number: 3984762 Country of ref document: EP Kind code of ref document: P
2023-03-22	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2023-07-05	P01	Opt-out of the competence of the unified patent court (upc) registered	Effective date: 20230526
2023-09-15	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2023-10-18	17P	Request for examination filed	Effective date: 20230912
2023-10-18	RBV	Designated contracting states (corrected)	Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2023-11-01	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2023-11-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2023-11-29	INTG	Intention to grant announced	Effective date: 20231102
2024-03-01	GRAJ	Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted	Free format text: ORIGINAL CODE: EPIDOSDIGR1
2024-03-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2024-03-27	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2024-03-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2024-04-03	INTC	Intention to grant announced (deleted)
2024-04-24	INTG	Intention to grant announced	Effective date: 20240328
2024-05-24	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2024-05-31	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2024-05-31	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
2024-07-03	AC	Divisional application: reference to earlier application	Ref document number: 3984762 Country of ref document: EP Kind code of ref document: P
2024-07-03	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2024-07-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: EP
2024-07-18	REG	Reference to a national code	Ref country code: DE Ref legal event code: R096 Ref document number: 502021004274 Country of ref document: DE
2024-10-25	REG	Reference to a national code	Ref country code: LT Ref legal event code: MG9D