EP4185470A1 - Sicherheitsmerkmal mit kippungsabhängiger motivdarstellung - Google Patents
Sicherheitsmerkmal mit kippungsabhängiger motivdarstellungInfo
- Publication number
- EP4185470A1 EP4185470A1 EP21728432.2A EP21728432A EP4185470A1 EP 4185470 A1 EP4185470 A1 EP 4185470A1 EP 21728432 A EP21728432 A EP 21728432A EP 4185470 A1 EP4185470 A1 EP 4185470A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motif
- main
- additional
- security feature
- parts
- 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
- B42D25/30—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
Definitions
- the invention relates to a two-dimensional security feature with optically variable motifs, a security element with such a security feature, and an object secured therewith.
- Portable data carriers such as documents of value - in particular banknotes, checks or the like - ID documents or chip cards, but also other valuables such as branded goods are often provided with security features for security purposes, which allow the authenticity to be checked and at the same time serve as protection against unauthorized reproduction.
- the security features can be present as part of a security element or can be generated directly on the object to be protected.
- Security elements can be designed, for example, in the form of an embedded security thread, an embedded film or as a transfer element, such as an applied security strip or patch.
- a generic security feature is known from WO 2019/219239 A1.
- the security feature of documents of value such as banknotes, checks or the like, has: a structure that presents a main motif and an additional motif, which change their appearance when the security element is tilted over a tilting angle range, the structure having micro-elements that represent the main motif and the additional motif present.
- the micro-elements present the main motif in such a way that it is fully visible at a certain starting tilt position and only partially visible when the tilt position is changed towards a certain end tilt position within the tilt angle range, and not at all when the end tilt position is reached is more visible.
- the representation of achromatic motifs based on micromirrors is also known from WO 2019/219236 A1.
- micro-elements - designed as micro-mirrors in the generic prior art - in such a way that two motifs are only visible on the banknote from a certain viewing angle and one motif disappears when the banknote is tilted.
- Such a motif change is achieved with micromirrors, for example, in that the mirror gradient along the perpendicular to the tilting axis has only positive values in one section and only negative values in another section Movement effect combined.
- the invention is based on the object, in contrast, of providing a security element that is easier to recognize and is therefore ultimately forgery-proof.
- a flat security feature changes its appearance when tilted over a tilting angle range. It has a structure that has a main motif and presenting an additional motif, the structure having micro-elements presenting the main motif and the additional motif.
- the micro-elements present the main motif in such a way that it is visible in a surface area at a certain starting tilt position and when the tilt position is changed towards a certain end tilt position of the tilt angle range, the size of the surface area in which the main motif is visible is also visible increasing changing the tilt position decreases.
- the micro-elements present the additional motif in such a way that it moves towards the main motif when the tilt position is changed to the final tilt position.
- the micro-elements present at least two parts of the additional motif in such a way that the parts of the additional motif move in different directions towards the main motif when the tilt position is changed.
- the micro-elements also present the main motif in such a way that at least two sections of an edge of the surface area recede along the different directions before the movement of the additional motif towards the main motif.
- the tilting angle range begins with the starting tilting position and ends with the end tilting position.
- the main motif can no longer be seen in the final tilted position. For the viewer, it appears as if it has been completely pushed aside or wiped away when it is tilted.
- the additional motif (with its parts) can already be seen in the starting tilted position. Alternatively, however, the additional motif or its at least two parts only become partially visible from the starting tilted position.
- the main motif When changing the tilting position from the starting tilting position to the ending tilting position, the main motif should be visible in the surface area, the size of which decreases with increasing tilting.
- the at least two sections of the edge of the surface area move towards the main motif or towards its center - like the parts at the same time and along different directions.
- the movement of the sections follows the movement of the additional motif.
- the property of the additional subject to move towards the main subject in different directions when tilted through the tilting angle range and at the same time to reduce the size of the surface area in which the main subject is visible can be understood as a subject-centred movement effect, because the movement takes place Motif-centric, ie towards the main motif, preferably towards a center of the main motif.
- Motif-centric ie towards the main motif, preferably towards a center of the main motif.
- This effect happens, for example, in such a way that the main subject is fully visible at a certain starting tilt position. If you change the tilt position towards the specific final tilt position, ie over a tilt angle range, the main motif is only partially visible, e.g.
- the surface area in which the main motif is presented is thus reduced optically during the tilting process, supported by the simultaneous movement of the additional motif.
- the reduction takes place in such a way that the edge of the surface area has at least two sections that withdraw accordingly in front of the additional motif, which moves towards the main motif. This takes place simultaneously for the at least two sections and along the different directions of the parts of the additional motif, ie both sections move in a different direction.
- the micro-elements present the main motif or the additional motif, i.e. are each set up accordingly for the described expression of the main and/or the additional motif.
- the at least two parts of the additional motif are adjacent to the at least two sections of an edge of the surface area, which recede simultaneously and along different directions from the movement of the additional motif towards the main motif.
- the movement of the (two, three or more or ...) parts of the additional motif towards the main motif is associated with a corresponding decrease in the surface area of the main motif or a retreat of the sections.
- a size and/or shape of the parts of the additional motif--moving in different directions--remain constant when the tilted position is changed In particular, unchanged parts of the additional motif can easily move when changing the tilt position, for example two opposing bars move with a fixed shape and size.
- a change in size is also conceivable constant shape, such as a bar growing in size, representing a change in shape at constant size, such as transitioning from an elongated oval to a bar of equal area.
- a size and/or shape of the parts of the additional motif moving in different directions can change with the tilted position.
- a use together with un changed parts of the additional motif is conceivable.
- two bars moved perpendicularly and also opposing each other could be presented.
- the main motif is initially surrounded by a bar in each of the four spatial directions. As the tilt increases, all four bars move to the center of the main subject. If two bars remain unchanged, the length of the other two bars decreases according to the movement of the unchanged bars, so that in particular overlapping of the four bars can be avoided. An exact counter-rotation of Be movements is not required. Alternatively, it is also conceivable that all four (or more) parts of the additional motif arranged around the main motif decrease in size, in the case of bars in their length, in the same way.
- Three parts arranged symmetrically around the main motif such as bars, ovals or the like, with three different directions of movement, for example at an angle of 120 degrees to one another, are another embodiment of a moving additional motif.
- the three bars will in turn move towards each other and towards the main subject.
- the length of the bars decreases with increasing tilt position.
- the size of a surface area in which the additional motif is visible can increase or decrease as the tilted position increases.
- This Size may preferably increase or decrease at the same rate as the surface area of the main subject decreases.
- the size of the surface area of the additional motif decreases.
- the size of the surface area of the additional motif then also decreases.
- the size of the parts can also increase. For example, if the edge of the two parts, initially two bars or equilateral triangles, of the additional motif that is remote from the main motif remains stationary, the edge of the part that is close to the main motif moves towards the main motif.
- the two parts of the additional motif increase in size, particularly as much as the surface area of the main motif decreases.
- two narrow bars become two wide rectangles.
- the impression of a curtain closing in front of the main motif can be created for the viewer.
- Two elongated isosceles triangles emerge from two equilateral triangles (eg with one side facing the main motif).
- the portion of the main motif that is presented (and thus visible to the viewer) decreases with an increasing tilt position within the tilt angle range. The viewer gets the impression that the additional motif is increasingly (on two or more sides) covering or wiping away the main motif.
- the main motif can be presented in increasingly reduced form with an increasing tilt position within the tilt angle range.
- the viewer gets the impression that the additional motif covers the main motif (on two or more sides) and suppresses or compresses it.
- a center of the main motif is stationary and/or the at least two parts of the additional motif move towards the center of the main motif. Motifs presented in three dimensions (or floating above or below a structural level), whose presentation only adapts to the changed viewing angle when tilted, are still stationary motifs in the present sense.
- the motif-centered movement effect of the additional motif preferably ends centrally, namely when the two sections have moved completely towards one another, the micro-structural elements only have to be divided into two effects in each partial area of the structure.
- the brightness of the security element is particularly high, since a large number of micro-elements in the structure can be used to display the changing main motif. This fundamentally improves the light intensity.
- the main motif is at least partially visible for all tilt angles within the tilt angle range. As a result, it can also be designed to be very bright and easier to recognize.
- the main motif and the additional motif can together be referred to as the overall motif of the security feature.
- the area in which the overall motif is presented corresponds minimally to the initial area of the main motif and can be composed of the initial areas of the main motif and the additional motif.
- the different directions of movement of the (two) parts of the additional motif are advantageously in at least one tilted position within the tilting angle range at an angle of more than 90 degrees (up to 180 degrees) to one another. nander, preferably at an angle of more than 120 (up to 180 degrees) zueinan the.
- the directions of movement are more preferably at an angle of (170 to) 180 degrees to one another, ie they are in opposite directions.
- the directions of movement of the at least two parts of the additional motif can remain unchanged within the tilting angle range, ie have one of the angles mentioned constantly.
- the angle can change as the tilt position increases within the tilt angle range.
- the angle between the directions of movement can increase or decrease.
- At least one of the angles mentioned is reached or assumed during the change, or a maximum of 180 degrees is reached or assumed.
- the additional motif could supersede the main motif like a (opening or closing) door with two wings.
- the additional motif comprises at least two parts.
- the specified angles apply to two of the parts, in particular to only one pair of parts (or in each case to two pairs of parts moving in different directions).
- the number of sections of the edge to be receded corresponding to the number of parts of the additional motif.
- the parts of the additional motif can be spaced or non-spaced parts. When tilting or changing the tilt position, the distance can change or remain unchanged. For example, four separate beams can move in opposite directions when tilted, in particular in pairs move towards each other and either remain separate, i.e.
- Non-spaced parts of the additional motif for example parts of a rectangular or oval frame or a circular ring, can have visible border lines between the parts or (without border lines between the parts) be recognizable to the viewer as differently moving parts of the additional motif.
- the additional motif preferably comprises parts spaced apart from one another within the tilting angle range in at least one tilted position, the majority of tilted positions or each tilted position.
- the additional motif within the tilting angle range comprises parts that are not spaced apart in at least one tilted position, in the majority of tilted positions or in every tilted position.
- the additional motif can completely surround the main motif, preferably in the form of a ring, in particular in the form of a circular ring, in the form of a frame, in particular as a rectangular frame, or in the form of an eyelid.
- the additional motif has a detailed structure which changes when it is tilted and/or makes the movement of the parts recognizable.
- a pattern, a subdivision or the three-dimensionality of the additional motif such as a curved appearance out of the structural plane, can serve as a detailed structure.
- the detail structure can be adapted to the movement of the additional motif for the to make the viewer recognizable.
- the detailed structure can also undergo a change that is independent of the movement of the additional motif onto the main motif.
- a detail structure in a part that does not change in size and shape can move as a pattern in a different direction than the part itself when tilted, or change as a curvature.
- the main motif is preferably presented basically unchanged. This also improves perception.
- a main motif that is rotationally symmetrical or circular in outline is therefore particularly preferred, since such an element works particularly well if it can be tilted in all directions. Motifs that show a three-dimensional effect are particularly safe because they are more difficult to reproduce.
- the main motif and/or the additional motif can be presented to the viewer in three dimensions or in a plane deviating from the structural plane, in particular floating above or below the structural plane.
- the additional motif is preferably presented floating in a plane that lies above a plane in which the main motif is presented.
- the basic structures for presenting the main motif or the moving additional motif possibly also with a three-dimensional effect, are sufficiently known per se, just for example from WO 2011/066990 A2, WO 2015/078572 A1 or WO 2016/180522 A1.
- the structure is a micromirror structure with a large number of specularly reflecting, preferably inclined and planar (or non- diffractive), micro mirror.
- the structure comprises an embossed layer, preferably a hardened embossing lacquer layer, in particular designed as a UV-hardened embossing lacquer layer, which is provided with a reflection-increasing coating.
- the microelements are advantageously provided with a color coating that produces a color impression.
- the color coatings of the micromirrors are formed by translucent colors.
- Metallizations for example made of aluminum, silver or an alloy, for example made of copper and aluminum, are also possible, as are thin-layer structures, in particular color-shifting thin-layer structures, gold-blue or silicon-aluminum thin layers.
- the color coatings can also be formed by translucent colors with a metallic mirror coating underneath, for example made of aluminum.
- the color coatings can represent a translucent image made up of several translucent colors, which is backed by a mirror, for example made of aluminum.
- Luminescent colors in particular fluorescent colors with a metallic mirror coating
- the color coatings can also be formed by structural colors, in particular by nano and binary structures, which are embossed on or in the micromirrors.
- nanoparticle colors can also be considered as color coatings, such as gold-blue particles, various effect pigments, color-changing pigments or super silver.
- the color coatings are preferably applied directly to the micromirrors and follow their relief profile.
- the micro-elements of the main motif and the additional motif are nested in the structure.
- the micro elements can be arranged in a regular pattern and nested within each other be nested.
- micro-elements of different shape and/or size and/or spacing are preferably provided in an arrangement of micro-elements. In particular, unintentional diffractive effects are thus avoided.
- the nesting is preferably also carried out irregularly.
- the nesting can be pseudo-random and/or in pixels with m*n micro-mirrors (with the same or different size/shape of the micro-mirrors or with fixed, pseudo-random and/or brightness-oriented positioning of one or more micro-elements of a motif within the pixels).
- the structure can also contain micro-elements that serve as a background for the main and/or the additional motif, for example by not reflecting in the direction of the viewer in any of the tilt positions of the tilt angle range or in the current tilt position.
- the security feature realizes a continuous and at the same time easily recognizable and traceable disappearance of the main motif when the item is tilted.
- a wide variety of configuration options are opened up, which result in a very easily recognizable and understandable security element.
- the security feature can be provided in a security element.
- the security element can have its own carrier layer, for example a plastic film, or it can be carrierless.
- the security element is intended to be applied to an object to be secured, for example as a security patch or security strip, or to be introduced into an object to be secured, for example as a security thread.
- the object to be secured can be a data carrier, in particular a valuable document such as a banknote, or an ID card or chip card, or a product or its packaging.
- a valuable document such as a banknote, or an ID card or chip card, or a product or its packaging.
- the present security feature can also be created directly on the object to be secured, such as data carriers, in particular documents of value (especially banknotes), identity cards or chip cards, or products or their packaging.
- data carriers in particular documents of value (especially banknotes), identity cards or chip cards, or products or their packaging.
- 1 is a plan view of a bank note
- FIG. 2 shows a schematic representation for explaining tilt angles when viewing a security feature of the bank note
- 3 shows a schematic representation to explain the structure of a surface area of the security feature of FIG. 1
- FIGS. 1
- the banknote comprises a security element 4 with a security feature 3, which has a microstructure on its surface area 5, which shows a main motif.
- the appearance of the main subject depends on the tilt angle by which the security feature 3 is tilted when viewed.
- tilt here refers, as usual, to an angular change in the relative position between the essentially flat security feature 3 and the viewing direction from which an observer looks at the security feature. This relative position can be changed by tilting the security feature with a fixed viewing direction or by changing the viewing angle with a fixed security feature. Combinations are of course possible.
- the security element 4 will generally have a large number of other security features in addition to the security feature 3 shown, which may be present adjacent to, at a distance from, or on the back of the security feature 3 .
- the other usual ones are also not shown in the figures Security features and/or security elements that the banknote will include.
- the tilting axis 6 lies in particular in the plane of the security feature
- the tilting considered here runs over a tilting angle range 11 from a starting tilting position 8 to an end tilting position 10.
- the starting tilting position 8 follows a first zone 13 and the end -Tilt position 10 is followed by a second zone 14, which will be explained later.
- the surface area 5 of the security feature 3 has a large number of first micro-elements 15 and second micro-elements 16, which are nested in one another, for example in a first pattern 17 (first micro-elements 15) or a second pattern 18 (Second micro elements 16) are arranged.
- first micro-elements 15 first micro-elements 15
- second micro-elements 16 second micro-elements 16
- Such an arrangement and configuration of microelements is known from the prior art, for example from WO 2019/219239 A1 with microelements in the form of tilted micromirrors, in particular planar micromirrors or microconcave mirrors.
- diffractive, specularly reflecting microelements diffractive, specularly reflecting microelements.
- the micro-elements 15, 16 ensure that a main motif 20 (see FIG. 4A) and an additional motif 22 (see FIG. 4E) are presented.
- the first micro-elements 15 present the main motif 20, the
- microelements of different shape and/or are preferred Size and / or spacing provided. In particular, unintended diffractive effects are thus avoided.
- the nesting is also preferably more complex than shown in the figure.
- the nesting is also preferably carried out irregularly.
- the nesting can be pseudo-random and/or in pixels with m*n micro-mirrors (with the same or different size/shape of the micro-mirrors or with fixed, pseudo-random and/or brightness-oriented positioning of one or more micro-elements of a motif within the pixel).
- micro-elements in the arrangement or micro-elements that serve as the background of a motif, for example by not reflecting in the direction of the viewer at all or not at the tilt angle.
- Nesting in a section or surface area allows different motifs to be displayed in succession (or simultaneously) in the section, depending on the tilt angle.
- the surface area 5 preferably comprises only specularly reflecting micro-elements of exactly two motifs, as a result of which the main motif 20 and the additional motif 22 are presented in a very bright manner. If you now start tilting in the first zone 13 of FIG. 2, ie before the starting tilt position 8, only the main motif 20 is visible in one embodiment (cf. FIG. 4A), which is presented by the first microelements 15 is as long as the tilt 12 is in the first zone 13. 4A shows the main motif 20 as an example as a ring. Alternatively, an additional motif 22 is also already visible for tilt angles that lie in the first zone 13
- the additional motif 22 can, for example, be stationary for tilt angles in the first zone 13 or can move away from the main motif 20 because of it.
- the additional motif 22 is presented to the viewer by the second micro-elements 16 .
- the general comment applies that the motifs in the figures are shown dark against a light background, but are presented to the viewer as bright (because they are directed towards the viewer and reflecting), while the background appears darker (because they are not reflecting towards the viewer). .
- the additional motif 22 moves from the starting tilted position 8 in two different directions 26a, 26b towards the main motif 20.
- the additional motif 22 comprises two parts 22a, 22b.
- the two parts 22a, 22b of the additional motif are formed by elongated bars.
- the directions of movement 26a, 26b are at an angle of 180 degrees to each other, so they are directed in opposite directions to the main motif 20.
- the main motif 20 occupies a surface area 25 which is delimited by a border 24 .
- the border 24 has two sections 24a, 24b.
- the additional motif 22 moves in the two directions 26a, 26b towards the main motif 20 and at the same time the surface area 25 of the main motif 20 becomes smaller.
- the main motif 20 disappears because it is only presented within this surface area 25 .
- the two sections 24a, 24b of the edge 24 of the surface area 25 move towards one another along the opposite directions of movement 26a, 26b.
- the sections 24a, 24b thus follow the movement of the parts 22a, 22b of the additional motif 22 during tilting from the starting tilting position 8 to the end tilting position 10.
- the movement of the parts 22a, 22b is directed towards the center of the main motif 20.
- the movement along the directions 26a, 26b is subject-centred.
- the disappearance of the main motif 20 corresponds in area and direction to the movement of the two parts of the additional motif.
- the two moving parts of the additional motif displace the main motif.
- the main subject 20 disappears with increasing tilt until it is no longer seen at all, as shown in Figure 4E.
- the portions of the boundary 24 of the area have met at the center of the main subject 20 originally seen.
- the two parts 22a, 22b of the additional motif can—as indicated in FIG. 4E—be presented at a distance from one another as separate parts or without a spacing as the additional motif.
- the additional motif 22 can be presented (cf. FIG. 4E).
- the additional motif 22 for the tilt angle of the second zone 14 can also disappear again or no longer be presented, so that neither of the two motifs 20, 22 is presented any more.
- the additional motif 22 has an expansion which is not as great as that of the fully visible main motif 20.
- the main motif 20 is no longer presented in areas over which the parts 22a , 22b of the additional motif 22 have already run, as FIG. 4E clearly shows.
- the additional motif 22 can also have the effect of a pre-hang for the viewer, which pushes itself in front of the main motif 20 on both sides. As shown in FIGS. 4B-4E, this can be achieved if the parts 22a, 22b of the additional motif are followed by further strip-shaped or bar-shaped parts which move in the same way as the two parts 22a, 22b.
- the other parts can, for example, be distinguishable from the two parts 22a, 22b in terms of their brightness (light/medium light), their pattern or their color.
- the size of the additional motif increases to the same extent as the size of the surface area 25 decreases.
- the parts 22a, 22b of the additional motif can in turn also grow together and/or fuse in the end tilted position.
- the parts 22a, 22b can change their size with the movement, e.g. so that the part furthest from the main motif
- Edge of the parts 22a, 22b remains stationary during the movement effect. This reinforces the impression of a curtain or screen that slides in front of the main subject 20. Such an embodiment is shown in FIGS. 5A-5D.
- FIG. 5A shows a detailed structure 23 in the parts 22a, 22b of the additional motif 22.
- the detailed structure 23 is arranged in the section of the parts 22a, 22b close to the main motif.
- the detailed structures 23 of the additional motif 22 also move in the corresponding direction 26a, 26b.
- the edge of the parts 22a, 22b that is remote from the main motif remains stationary, so that the size of the additional motif 22 increases overall.
- the parts 22a, 22b of the additional motif have an (arbitrary) detail structure 23 which makes the movement of the parts recognizable.
- the detail structure 23 can therefore have any desired design and is only shown as a triangle as an example.
- a level reference (such as curvature out of the substrate level, position above or below the substrate level) can also serve as a detailed structure.
- the movement of the parts 22a, 22b of the additional motif is visible to the viewer - at the latest through the detail structures 23.
- the moving parts of the additional motif 22 apparently prevent the observer from seeing the main motif 20. Due to the movement of the additional motif, the change when tilting is clearly different from a mere uncovering of a static additional motif.
- sections of parts 22a, 22b remote from the main motif can remain static.
- sections of the parts 22a, 22b that are remote from the main motif can move differently, in particular at a lower speed and/or at a speed that is dependent on the location (and/or the tilting angle). These configurations in particular can reinforce the impression of a curtain.
- FIG. 6A and 6B show, among other things, that the parts of the additional motif 22 moving towards one another and the sections of the border 24 receding are not restricted to rectilinear parts. Furthermore, it can be seen that a simultaneous movement of more than two parts of the additional motif can take place in more than two directions centered on the main motif.
- FIG. 6A shows a main motif 20, shown here purely as an example as a smiley, which is surrounded by an annular border 24, shown here as a circle, for example.
- the additional motif 22 is in the form of a circular ring, e.g. as an iris diaphragm. It surrounds the main motif 20.
- the additional motif 22 can comprise a multiplicity of parts 22a, 22b.
- a detailed structure 23 can be present through the boundaries of the parts 22a, 22b or, as described with reference to FIG. 5A, be designed differently.
- the additional motif 22 moves towards the main motif when it is tilted.
- the direction(s) 26 of the movement(s) of the additional motif 22 is (are) directed towards the center of the main motif.
- FIGS. 6A and 6B show the main motif 20, which disappears with increasing tilting through the tilting area 11 in that the additional motif moves towards the main subject in more than two subject-centric directions 26 .
- the border 24 around the main subject 20 pulls together accordingly.
- the additional motif 22 or the parts 22a, 22b of the additional motif also change their appearance when tilted. For example, the contraction of an iris diaphragm or a blink of the eyelid is simulated.
- the additional motif has a constant ring thickness and contracts when tilted.
- the additional motif 22 changes when tilted by a dynamic detail structure 23, for example in the form of an adjusting iris diaphragm, etc., as is shown in FIGS. 6A and 6B.
- the outline of the parts of the additional motif changes.
- the basic external shape of the additional motif here a ring, preferably remains unchanged.
- the additional motif 22 can also have a curvature, for example, the maximum of which is always in the middle of the ring.
- the additional motif 22 When tilting, the additional motif 22 preferably moves to an end tilted position up to the former center of the main motif, which has then disappeared.
- FIG. 7 shows an embodiment which illustrates that the directions of movement 26a, 26b of the parts 22a, 22b of the additional motif move towards the main motif 22 and towards one another, without the movements having to be exactly in opposite directions.
- the directions of movement 26a, 26b can be at an obtuse angle, for example of 180+/ ⁇ 45 degrees, ie 135 to 225 degrees (exactly opposite corresponds to 180 degrees).
- the parts 22a, 22b move towards the main subject 22 and towards each other.
- the loading movement is similar to a director's flap.
- a tilting condition similar to that of FIG. 4C is shown.
- the main subject 20 may dynamically change with tilting in embodiments - in addition to changing the surface area 25 in which it is visible.
- the second zone 14 could be adjoined by a further range of tilting angles, in which the movements run in precisely opposite directions.
- the additional motif moves outwards and the surface area 25 with the main motif grows as it is tilted further.
- a further first zone would then in turn adjoin the further tilting angle range.
- the second zone 14 could, for example, be essentially perpendicular to the plane of the security feature.
- FIGS. 4E to 4B When tilting further beyond the second zone 14, the counter-movement is evident, ie, for example, FIGS. 4E to 4B.
- such configurations are disadvantageous because the light is weaker because the number of available micromirrors per motif decreases.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020004423.9A DE102020004423A1 (de) | 2020-07-22 | 2020-07-22 | Sicherheitsmerkmal mit kippungsabhängiger Motivdarstellung |
| PCT/EP2021/025189 WO2022017634A1 (de) | 2020-07-22 | 2021-05-25 | Sicherheitsmerkmal mit kippungsabhängiger motivdarstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4185470A1 true EP4185470A1 (de) | 2023-05-31 |
| EP4185470B1 EP4185470B1 (de) | 2024-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21728432.2A Active EP4185470B1 (de) | 2020-07-22 | 2021-05-25 | Sicherheitsmerkmal mit kippungsabhängiger motivdarstellung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4185470B1 (de) |
| CN (1) | CN116018275B (de) |
| DE (1) | DE102020004423A1 (de) |
| WO (1) | WO2022017634A1 (de) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199744A (en) * | 1988-09-09 | 1993-04-06 | De La Rue Plc | Security device |
| AU2003903501A0 (en) * | 2003-07-07 | 2003-07-24 | Commonwealth Scientific And Industrial Research Organisation | A method of forming a reflective authentication device |
| DE102007039996B4 (de) * | 2007-02-07 | 2020-09-24 | Leonhard Kurz Stiftung & Co. Kg | Sicherheitselement für ein Sicherheitsdokument und Verfahren zu seiner Herstellung |
| GB0919112D0 (en) * | 2009-10-30 | 2009-12-16 | Rue De Int Ltd | Security device |
| DE102009056934A1 (de) * | 2009-12-04 | 2011-06-09 | Giesecke & Devrient Gmbh | Sicherheitselement, Wertdokument mit einem solchen Sicherheitselement sowie Herstellungsverfahren eines Sicherheitselementes |
| DE102011121653A1 (de) * | 2011-12-19 | 2013-06-20 | Giesecke & Devrient Gmbh | Optisch variables Flächenmuster |
| DE102012020550A1 (de) | 2012-10-19 | 2014-04-24 | Giesecke & Devrient Gmbh | Optisch variables Flächenmuster |
| DE102013016041A1 (de) * | 2013-09-26 | 2015-03-26 | Giesecke & Devrient Gmbh | Sicherheitselement mit Linsenrasterbild |
| DE102013019944A1 (de) | 2013-11-27 | 2015-05-28 | Giesecke & Devrient Gmbh | Sicherheitselement mit magnetisch ausrichtbaren Magnetpigmenten und einem zweiten Motiv sowie Verfahren zu dessen Herstellung |
| DE102013021358A1 (de) * | 2013-12-16 | 2015-06-18 | Giesecke & Devrient Gmbh | Sicherheitselement für Sicherheitspapiere |
| FR3019496A1 (fr) | 2014-04-07 | 2015-10-09 | Hologram Ind | Composant optique de securite a effet reflectif, fabrication d'un tel composant et document securise equipe d'un tel composant |
| DE102015005969A1 (de) | 2015-05-08 | 2016-11-10 | Giesecke & Devrient Gmbh | Optisch variables Sicherheitselement |
| AU2016100402B4 (en) * | 2016-04-13 | 2017-08-17 | Ccl Secure Pty Ltd | Micro-optic device with integrated focusing element and image element structure |
| DE102017004585A1 (de) | 2017-05-12 | 2018-11-15 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit Mikroreflektoren |
| DE102017005192A1 (de) * | 2017-05-31 | 2018-12-06 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit zwei Kippeffekten |
| DE102018004062A1 (de) | 2018-05-18 | 2019-11-21 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit Mikroreflektoren |
| DE102018004088A1 (de) | 2018-05-18 | 2019-11-21 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit Mikroreflektoren |
| DE102018005454A1 (de) * | 2018-07-09 | 2020-01-09 | Giesecke+Devrient Currency Technology Gmbh | Optisch variables Sicherheitselement mit reflektivem Flächenbereich |
| DE102018008147A1 (de) * | 2018-10-15 | 2020-04-16 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement und mit dem Sicherheitselement ausgestatteter Datenträger |
-
2020
- 2020-07-22 DE DE102020004423.9A patent/DE102020004423A1/de not_active Withdrawn
-
2021
- 2021-05-25 WO PCT/EP2021/025189 patent/WO2022017634A1/de not_active Ceased
- 2021-05-25 EP EP21728432.2A patent/EP4185470B1/de active Active
- 2021-05-25 CN CN202180055407.2A patent/CN116018275B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020004423A1 (de) | 2022-01-27 |
| WO2022017634A1 (de) | 2022-01-27 |
| EP4185470B1 (de) | 2024-06-12 |
| CN116018275A (zh) | 2023-04-25 |
| CN116018275B (zh) | 2025-08-08 |
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