DE102018000343A1 - Security element with luminescent motif area - Google Patents

Abstract

The invention relates to a security element (12) for securing security papers, value documents and other data carriers, with
an optically variable daylight motif area (14) which, in visible light, shows at least two different appearances (14 (M); 14 (G)) from different viewing directions, and
- A luminescence motif region (16) showing at least one multicolor luminescence motif (16-1 (M), 16-2 (B)) after UV excitation, wherein
- The optically variable daylight motif area (14) in at least one of its appearances (14 (M)) is adapted to the at least one multi-colored luminescence motif (16-1 (M), 16-2 (B)).

Description

The invention relates to a security element with a luminescent motif area for securing security papers, value documents and other data carriers. The invention also relates to a method for producing such a security element and to a data carrier equipped with such a security element.

Data carriers, such as valuables or identity documents, but also other valuables, such as branded goods, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.

In this context, it has long been known to use luminescent substances for securing value or identity documents. The presence of the luminescent substances can then be tested, for example, with the aid of a UV lamp. For example, in a security paper fluorescent mottled fibers can be incorporated, which usually consist of short, provided with a fluorescent coating fibers. In normal lighting, the mica fibers are invisible, but under UV illumination, they appear clearly in their bright fluorescence, for example in red, green or blue, despite their small size. Especially in the pass range, the printing of true color luminescence images is known. The implementation is usually done in ink-jet printing with special colors, which are not visible in normal lighting and after excitation by UV light a comparable color impression as a classic picture, such as a portrait of the passport owner show.

However, inkjet fluorescent inks are now relatively readily available, especially through online retailers, which allow counterfeiters to create counterfeits. Also, ink manufacturers offer fluorescent colors that are designed for technical gadgets or brand protection.

Based on this, the present invention seeks to provide a security element of the type mentioned above with an attractive appearance and high security against counterfeiting.

This object is solved by the features of the independent claim. Further developments of the invention are the subject of the dependent claims.

• - einen optisch variablen Tageslicht-Motivbereich, der im sichtbaren Licht aus unterschiedlichen Betrachtungsrichtungen zumindest zwei unterschiedliche Erscheinungsbilder zeigt, und
• - einen Lumineszenz-Motivbereich, der nach UV-Anregung zumindest ein mehrfarbiges Lumineszenzmotiv zeigt, wobei
• - der optisch variable Tageslicht-Motivbereich in zumindest einem seiner Erscheinungsbilder an das zumindest eine mehrfarbige Lumineszenzmotiv angepasst ist.

According to the invention, a generic security element comprises

• an optically variable daylight motif area which shows at least two different appearances in visible light from different viewing directions, and
• a luminescence motif region which shows at least one multicolored luminescence motif after UV excitation, wherein
• - The optically variable daylight motif area is adapted in at least one of its appearances to the at least one multi-colored luminescence motif.

The terms visible light and daylight are used interchangeably in this application for light from the visible wavelength range (about 380 nm to 780 nm). UV light or UV excitation denotes light from the ultraviolet wavelength range of about 100 nm to 380 nm.

As a result of the adaptation mentioned above, an interaction is created between the optically variable daylight motif area and the multicolored luminescent motif, which combines two security features that are visible in different lighting situations and therefore increases the security effect of the security element.

The said adaptation can be realized, in particular, by adapting the optically variable daylight motif area with a color in at least one of its appearances to the at least one multicolored luminescence motif. An adaptation in color means, in particular, that the hue of at least one subregion of the daylight motif region coincides with the luminescence hue of a subregion of the at least one multicolored luminescence motif.

It is advantageously provided that the optically variable daylight motif area in at least one of its appearances and the at least one multicolored luminescence motif have at least two areas with the same hue. Preferably, in each case the same color gradient from the hue of the first region to the hue of the second region exists between the two regions mentioned with the same hue.

The adjustment of a color match between an optically variable area and a luminescent motif area poses a great challenge to a potential counterfeiter, especially when multiple colors, a mixed color of several primary colors or even a color gradient have to match.

The luminescence motif region is advantageously a true color luminescence region, the mixed colors contains at least two, preferably three primary luminescent colors. In particular, the true color luminescence region contains mixed colors of luminescence green, luminescent red and luminescent blue.

The optically variable daylight motif area and the luminescent motif area are advantageously arranged adjacent to one another or at a distance from one another on the security element. In particular, the mutually adapted partial regions of the daylight motif region and of the luminescent motif region can be arranged adjacent to one another, so that the adaptation, for example in hue, is particularly conspicuous and can be easily checked.

In another embodiment, which is likewise advantageous, the optically variable daylight motif region and the luminescent motif region are arranged overlapping one another on the security element, the daylight motif region and the luminescent motif region being matched in color in the overlapping region.

The optically variable daylight motif area and the luminescent motif area form, with particular advantage, motif parts complementary to each other to form an overall motif. Especially with simultaneous lighting with daylight and UV light, the addition of the individual parts of the subject to a complete motif is very noticeable. The above-mentioned adaptation additionally provides an interaction between the two motif parts, which serves as a mark of authenticity in addition to the addition to an overall motif.

The optically variable daylight motif area preferably contains one or more elements selected from the group consisting of holograms, hologram-like diffraction structures, diffraction patterns, structures with color shift effect, kinoforms, structures with a microlens effect, and micro-optical representation arrangements, in particular moire magnification arrangements and lenticular images.

The luminescence motif region can be optically non-variable, but in an advantageous development of the invention the luminescence motif region is likewise optically variable and therefore shows at least two different appearances after UV excitation from different excitation directions, or at least shows after UV excitation two different appearances from different viewing directions. Furthermore, the luminescence motif region can also show different appearances when excited with different excitation wavelengths (for example 254 nm and 365 nm).

If the luminescence motif area shows different appearances, according to the invention the optically variable daylight motif area is adapted in at least one of its appearances to at least one of the appearances of the luminescence motif area. Of course, the daylight motif area can also advantageously be adapted to all appearances of the luminescence motif area.

An optically variably formed luminescence motif region is advantageously part of a microoptical representation arrangement, in particular a moiré magnification arrangement or a lenticular image.

In one development of the invention, it is provided that the optically variable daylight motif region and / or the luminescence motif region contain an IR-absorbing substance, preferably in the form of patterns, characters or a coding, such as a barcode or QR code.

The security element is advantageously a security thread, in particular a window security thread or a pendulum security thread, a tear thread, a security tape, a security strip, a patch or a label for application to a security paper, document of value or the like.

Furthermore, the security element can advantageously show different appearances in daylight and in UV light from opposite sides. For this purpose, in particular different luminescent motif areas are provided on the opposite sides of the security element, which are at least partially separated from one another by a UV blocker.

The invention also includes a data carrier with a security element of the type described. The security element may in particular be arranged in a window region of the data carrier, for example via an opening or a transparent or translucent subregion of the data carrier. In this case, the security element can advantageously show different appearances from opposite sides.

The data carrier may in particular be a value document, such as a banknote, in particular a paper banknote, a polymer banknote or a film composite banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also an identity card , like one Credit card, a bank card, a cash card, an authorization card, an identity card or pass personalization page.

• - auf einem Träger ein optisch variabler Tageslicht-Motivbereich erzeugt wird, der im sichtbaren Licht aus unterschiedlichen Betrachtungsrichtungen zumindest zwei unterschiedliche Erscheinungsbilder zeigt, und
• - auf dem Träger ein Lumineszenz-Motivbereich erzeugt wird, der nach UV-Anregung zumindest ein mehrfarbiges Lumineszenzmotiv zeigt, wobei
• - der optisch variable Tageslicht-Motivbereich in zumindest einem seiner Erscheinungsbilder an das zumindest eine mehrfarbige Lumineszenzmotiv angepasst wird.

Finally, the invention also includes a method for producing a security element of the type described above, in which

• a visually variable daylight motif area is produced on a support which shows at least two different appearances in visible light from different viewing directions, and
• - On the support a luminescence motif region is generated, which shows at least one multicolored luminescence after UV excitation, wherein
• - The optically variable daylight motif area is adapted in at least one of its appearances to the at least one multi-colored luminescence motif.

Further exemplary embodiments and advantages of the invention are explained below with reference to the figures, in the representation of which a representation true to scale and proportion has been dispensed with in order to increase the clarity.

• 1 schematisch eine Banknote mit einem erfindungsgemäßen Sicherheitselement,
• 2 das Erscheinungsbild des Sicherheitselements der 1 bei Beleuchtung mit nur einer Lichtsorte, in (a) im Tageslicht bei schräger Betrachtung, in (b) im Tageslicht bei senkrechter Betrachtung und in (c) bei UV-Anregung bei senkrechter oder schräger Betrachtung,
• 3 das Erscheinungsbild des Sicherheitselements der 1 bei gleichzeitiger Beleuchtung mit Tageslicht und UV-Licht, in (a) bei schräger Betrachtung und in (b) bei senkrechter Betrachtung,
• 4 das Erscheinungsbild eines Sicherheitselements nach einem weiteren Ausführungsbeispiel der Erfindung, in (a) im Tageslicht bei schräger Betrachtung, in (b) im Tageslicht bei senkrechter Betrachtung und in (c) bei UV-Anregung bei senkrechter oder schräger Betrachtung,
• 5 das Erscheinungsbild des Sicherheitselements der 4 bei gleichzeitiger Beleuchtung mit Tageslicht und UV-Licht, in (a) bei schräger Betrachtung und in (b) bei senkrechter Betrachtung,
• 6 eine Banknote mit einem Sicherheitsstreifen nach einem weiteren Ausführungsbeispiel der Erfindung in Tageslichtansicht,
• 7 das Erscheinungsbild des Sicherheitsstreifens der 6 bei verschiedenen Beleuchtungsbedingungen, in (a) nur im Tageslicht, in (b) nur im UV-Licht, in (c) bei gleichzeitiger Beleuchtung mit Tageslicht und UV-Licht, und in (d) im Infrarot-Licht,
• 8 eine Anordnung zur Erzeugung eines optisch variablen Lumineszenzmotivs,
• 9 in (a) bis (c) beispielhaft visuelle Erscheinungsbilder eines optisch variablen Lumineszenzmotivs beim Wechsel der Betrachtungsrichtung, und
• 10 in (a) bis (d) unterschiedliche lumineszierende Motivbilder von Moire-Vergrößerungsanordnungen, wobei in der linken Bildhälfte jeweils das Erscheinungsbild im Tageslicht und in der rechten Bildhälfte das Erscheinungsbild im UV-Licht gezeigt ist.

Show it:

• 1 schematically a banknote with a security element according to the invention,
• 2 the appearance of the security element of the 1 in lighting with only one type of light, in (a) in daylight when viewed obliquely, in (b) in daylight when viewed vertically, and in (c) in UV excitation in vertical or oblique viewing,
• 3 the appearance of the security element of the 1 with simultaneous illumination with daylight and UV light, in (a) in oblique viewing and in (b) in vertical viewing,
• 4 the appearance of a security element according to a further embodiment of the invention, in (a) in daylight when viewed obliquely, in (b) in daylight when viewed vertically and in (c) in UV excitation in vertical or oblique viewing,
• 5 the appearance of the security element of the 4 with simultaneous illumination with daylight and UV light, in (a) in oblique viewing and in (b) in vertical viewing,
• 6 a banknote with a security strip according to a further embodiment of the invention in daylight view,
• 7 the appearance of the security strip the 6 in different lighting conditions, in (a) only in daylight, in (b) only in UV-light, in (c) in simultaneous illumination with daylight and UV-light, and in (d) in infrared-light,
• 8th an arrangement for producing an optically variable luminescence motif,
• 9 in (a) to (c) exemplified visual appearances of an optically variable luminescence motif when changing the viewing direction, and
• 10 in (a) to (d) different luminescent motif images of Moire magnification arrangements, wherein in the left half of the picture in each case the appearance in daylight and in the right half of the appearance in the UV light is shown.

The invention will now be explained using the example of securing banknotes. 1 schematically shows a banknote 10 with a security element according to the invention 12 whose visual impression under different lighting and viewing conditions in the 2 and 3 is shown in more detail.

It shows 2 the appearance of the security element 12 when lighting only one type of light, either light 20 in the visible wavelength range (also referred to as daylight in this description) or UV light 22 , Specifically shows 2 (a) the appearance of the security element 12 in the daylight 20 at an angle, 2 B) the appearance in daylight when viewed vertically and 2 (c) the appearance of the security element 12 after UV excitation 22 Which is essentially independent of the viewing direction. 3 shows the appearance of the security element 12 with simultaneous illumination with both types of light 20 . 22 , in which 3 (a) the appearance at oblique viewing and 3 (b) the appearance when viewed vertically.

To explain the basic principle of the invention is in the 2 and 3 a security element 12 illustrates that two non-overlapping but contiguous designed motif areas 14 . 16 contains, in the embodiment by the upper and lower half of the bow in 1 shown bow motif are formed. In other designs, the subject areas 14 . 16 for example, be spaced apart from each other.

The first motif area provides an optically variable daylight motif area 14 in the visible light 20 (Daylight) from different Viewing directions shows two different appearances. In the exemplary embodiment, the motif area appears 14 when viewed vertically with the color magenta (M), as in 2 B) shown, and when viewed obliquely with the color green (G), as in 2 (a) shown.

The second motif area represents a luminescence motif area 16 which is not visible in pure daylight illumination, and in the 2 (a) and 2 B) therefore only with dashed outline is drawn. At UV excitation 22 shows the luminescent motif area 16 a multicolored luminescence motif, wherein in the embodiment of the 2 and 3 for simplicity, only two color areas 16-1 . 16-2 are shown in which the luminescence with the luminescent magenta (M) or blue (B) luminesces. The luminescent color magenta is a mixed color which is produced by additive color mixing of luminescent red and luminescent blue.

In pure UV illumination is the daylight subject area 14 hardly or not recognizable and in the 2 (c) therefore only drawn with dashed outline. The luminescence motif of the color areas 16-1 . 16-2 changes when tilting the security element 12 not, it appears rather in vertical and oblique viewing or lighting substantially with the same, in 2 (c) illustrated color impression.

A special feature is the optically variable daylight motif area 14 in its appearance when viewed perpendicularly to the luminescence motif of the color areas 16-1 . 16-2 adapted, namely shows in the subject area 14 the same color magenta (M) as the sub-area 16-1 the luminescence motif. The adjustment of such a color match between an optically variable range 14 and a luminescence region 16 presents a great challenge to a potential counterfeiter, especially if as here a mixed color matches, or if multiple colors or even color gradients match, as shown in embodiments described below.

The color match can be achieved by alternately illuminating the security element 12 with daylight 20 and UV light 22 can be checked, but can be queried in particular by a simultaneous illumination with daylight and UV light, as in 3 illustrated.

With simultaneous lighting with daylight 20 and UV light 22 appears at the in 3 (a) shown oblique view of the daylight motif area 14 with the color green (G) and the luminescence area 16 in the first color range 16 - 1 with the color magenta (M) and in the second color range 16 - 2 with the color blue (B). When tilting the security element 12 in the in 3 (b) shown vertical viewing direction changes the optically variable motif area 14 its appearance and then appears like the first color range 16-1 of the luminescence region with the color magenta (M). The color equality of the areas 14 and 16-1 It immediately catches the eye of a beholder and can therefore easily be checked. In addition, results from the contiguous arrangement of the subregions 14 . 16 a visually recognizable and memorable completion of the sub-motives 14 and 16 to a total motive.

The 4 and 5 show in one to the 2 and 3 analog representation, another embodiment in which the two motif areas 14 . 16 each contain two hues of the same color. With reference first to 4 (b) the optically variable daylight motif area appears 14 in visible light when viewed vertically in a first color range 14-1 with the color magenta (M) and in a second color range 14-2 with the color blue (B). When tilting the security element 12 in the in 4 (a) The oblique viewing direction shown changes the appearance of the area 14 through the color shift effect from magenta to green and from blue to magenta, leaving the first color range 14-1 in oblique daylight viewing with the color green (G) and the second color range 14 - 2 with the color magenta (M) appears.

The second subject area 16 is like the 2 and 3 already described trained and shows at UV excitation 22 a multicolored luminescence motif with a first color range 16 - 1 in the luminescent magenta (M) and a second color range 16 - 2 in the luminescent blue (B). The luminescence motif of the color areas 16 - 1 . 16 - 2 changes when tilting the security element 12 not and appears in vertical and oblique viewing or lighting substantially with the same, in 4 (c) illustrated color impression.

A special feature is the optically variable daylight motif area 14 adapted in its two appearances, each with at least one color range of the luminescence. In appearance at oblique viewing ( 4 (a) and 4 (c) ) appear both the color range 14 - 2 of the daylight motif area 14 as well as the color range 16 - 1 of the luminescence motif area 16 the color magenta (M), so that there is an adjustment in a color range.

In the case of vertical viewing, there are even two matched areas in the subject areas 14,16, as in FIG 4 (b) and 4 (c) illustrated: on the one hand Both the color range appear 14 - 1 of the daylight motif area 14 as well as the color range 16 - 1 of the luminescence motif area 16 with the color magenta (M), on the other hand appear both the color range 14 - 2 of the daylight motif area 14 as well as the color range 16 - 2 of the luminescence motif area 16 with the color blue (B).

The color matches mentioned may be due to alternating illumination with daylight 20 and UV light 22 can be checked with respect to 5 but also be checked by simultaneous illumination with daylight and UV light. With simultaneous lighting with daylight 20 and UV light 22 appear at the in 5 (a) shown oblique viewing direction the color areas 14 - 2 and 16 - 1 simultaneously in the color magenta (M). At the in 5 (b) on the one hand, the color areas appear on the one hand 14 - 1 and 16 - 1 simultaneously in the color magenta (M) and on the other hand the color ranges 14 - 2 and 16 - 2 at the same time in blue (B).

Of course it is also possible to change the color ranges of the areas 14 . 16 match so that only in one viewing direction, for example, the vertical viewing direction of the 5 (b) , Color matches occur while in other viewing directions, for example, the oblique viewing direction of the 5 (a) , there are no color matches, so by toggling the security element back and forth 12 in mixed light 20 . 22 can be changed in a conspicuous way between color match and lack of color match.

The 6 and 7 illustrate the use of the described basic principle in a more complex security element, namely a wide security strip 30 for application to a banknote 32 as in the daylight view of the 6 illustrated. The security strip 30 is in 7 shown in more detail, where there 7 (a) the appearance of the security strip 30 only in daylight 20 . 7 (b) the appearance of the security strip 30 only in UV light 22 and 7 (c) the appearance of the security strip 30 when lighting with both types of light 20 . 22 shows. 7 (d) finally illustrates the appearance of an optional development of the security strip 30 in the IR light 24 ,

With reference first to 6 and 7 (a) contains the security strip 30 one of several sections 42 . 44 existing, optically variable daylight motif area 40 , where the subregions 42 . 44 one hologram each 46 contain, when viewed vertically, a gradient of a light blue color range 46-1 to a dark blue color range 46-2 shows. The color gradient is illustrated in the figures by a four-stage course, but in practice may of course contain more stages or even be formed continuously.

Regarding 7 (b) contains the security strip 30 further a luminescent motif area 50 that after UV stimulation 22 shows a multicolored luminescence motif, which also consists of several subregions 52 . 54 . 56 consists. In the exemplary embodiment, the subareas provide a true color portrait 52 against the background of a blue sky 54 and a string of letters 56 dar. The sky background 54 shows in the UV light 22 a gradient of a light blue color range 54-1 to a dark blue color range 54-2 , where the hues of the gradient and the color endpoints 54-1 . 54-2 the shades of the gradients and the color endpoints 46-1 . 46-2 in the holograms 46 of the daylight motif area 40 correspond.

The color match between the gradient in the holograms 46 and the gradient in the luminescent sky background 54 can now when viewed vertically by alternating illumination with daylight 20 and UV light 22 they can be tested with respect to 7 (c) but also by simultaneous illumination of the security strip 30 be checked with daylight and UV light.

With simultaneous lighting with daylight 20 and UV light 22 namely at the in 7 (c) vertical viewing simultaneously shown the color gradients 46 - 1 to 46 - 2 the holograms 46 and the identical color gradient 54 - 1 to 54 - 2 the luminescent sky background 54 visible.

In oblique view, however, there is no color match, since the holograms 46 then with changed colors or not at all are visible. The adjustment of a color match between a holographic gradient 46 - 1 . 46 - 2 and a luminescent gradient 54 - 1 . 54 - 2 represents a challenge for a potential counterfeiter to overcome.

The described security features in the visible and UV spectral range can be supplemented by further authenticity features. Regarding 7 (d) can the sections 40 . 50 for example, additionally an IR-absorbing substance 62 contained in a sub-area in the form of an encoding, such as a QR code 60 , is trained. When irradiating the safety strip 30 with IR radiation 24 then results in the 7 (d) shown, the strip additionally securing appearance.

According to another development, the change in the visual appearance of the security element when changing from daylight viewing to viewing under UV excitation can be combined with an optically variable luminescent motif.

Regarding 8th For example, an optically variable luminescence motif can be obtained, analogously to conventional lens tilt images, by arranging a regular arrangement of parallel cylindrical lenses 70 spaced from a luminescent motif area 72 is arranged, which alternately into a plurality of parallel luminescent strips 74A . 74B is divided. The Stripes 74A . 74B and the cylindrical lenses 70 are coordinated so that after UV excitation from a first viewing direction only the stripes 74A , only the stripes from a second viewing direction 74B are visible and together produce a desired luminescence image.

9 illustrates in (a) to (c) by way of example some possible visual appearances of such an optically variable luminescence motif when changing the viewing direction (arrow 90 ). In the embodiment of 9 (a) the illustrated luminescence region appears 80 upon UV excitation from a first viewing direction in a first color, for example red (R), while appearing from a second viewing direction in a second color, for example yellow (Y).

In the embodiment of the 9 (b) For example, the luminescence region is a two-color pattern of two parallel stripes 82 . 84 whose luminescent colors change when changing 90 exchange the viewing direction against each other. From a first viewing direction, the stripes show 82 . 84 For example, after UV excitation, the color sequence red-yellow (left part of the image), while showing the color sequence yellow-red (right part of the image) from a second viewing direction.

In the embodiment of 9 (c) appears or disappears in the luminescence region 86 when tilting 90 an additional motif 88 , For example, the luminescence region appears 86 from a first viewing direction after UV excitation uniform red (R), while from a second viewing direction in addition crest motifs 88 in yellow (Y) in front of the red background are visible.

Such optically variable luminescence effects can be detected not only with lens arrangements 8th but also produce, for example, with prism arrangements or with blinds grids, wherein in the latter case, the grid elements may be formed in particular of opaque or transparent UV blockers.

A further possibility for producing optically variable luminescence motifs consists in the use of moiré magnification arrangements, such as in principle for example in the documents WO 2009/00528 A1 and WO 2006/087138 A1 are described. As a special feature, luminescent microimages are used in the same or different colors in the context of the present application. In daylight, the photomicrographs may either be invisible, for example transparent, or have the same body color as the ground, or they may be visible and have the same or different colors.

10 shows exemplary different motif images 100 such Moire magnification arrangements, as may be provided for example in a security thread as part of a security element described above. The regularly arranged microimages are each designed for illustration in the form of a star, but in practice can have any other shapes. In the left half of the picture 10 (a) to 10 (d) is the appearance of the motif images in daylight 20 , in the right half of the picture the appearance in UV light 22 shown.

In the embodiment of 10 (a) are the microimages 102 Initially designed to be in daylight 20 all the same color 104-F exhibit while the microimages 102 in UV light 22 in different luminescence colors 106-A . 106-B . 106-C . 106-D to shine. The Moire effect results when viewed both in daylight 20 as well as in UV light 22 a dynamic movement effect when tilting the security element, with the moving, moire-magnified stars in daylight 20 monochrome, in UV light 22 in contrast, with the different luminescence colors 106-A to 106-D to shine.

In the embodiment of 10 (b) are the microimages 102 in visible light 20 transparent and therefore their location in the figure only dashed, while in the UV light 22 in different luminescence colors 106-A . 106-B . 106-C . 106-D to shine. In the daylight 20 creates the motif image 100 thus no recognizable image and no movement effect, while in UV light 22 when tilting the security element a dynamic movement effect with moving, in the luminescent colors 106-A to 106-D glowing, moire-magnified stars, becomes visible.

In the embodiment of 10 (c) are the microimages 102 designed to be in daylight 20 all the same color 104-F and also in UV light 22 all in the same color 106-G to shine. The common daylight shade 104-F and the common luminescence hue 106-G can be the same or different. The moire effect results both in daylight 20 as well as in UV light 22 each a monochrome dynamic movement effect when tilting the security element.

The embodiment of 10 (d) finally shows a design in which the microimages 102 are designed to be in UV light 22 all the same color 106-G while they are in daylight 20 in different colors 104-A . 104-B . 104-C . 104-D appear. The moire effect results both in daylight 20 as well as in UV light 22 a dynamic movement effect when tilting the security element, with the moving, moire-magnified stars in the UV light 22 monochrome light, in daylight 20 against it with the different colors 104-A to 104-D appear.

LIST OF REFERENCE NUMBERS

10

bill

12

security element

14

optically variable daylight motif area

14-1,14-2

color ranges

16

Luminescence Basic Zone

16-1,16-2

color ranges

20

daylight

22

UV light

24

IR light

30

security patrols

32

bill

40

optically variable daylight motif area

42.44

subregions

46

hologram

46-1,46-2

color ranges

50

Luminescence Basic Zone

52

Partial area, true color portrait

54

Part area, sky background

56

Subarea, sequence of letters

60

QR code

62

IR-absorbing substance

70

cylindrical lenses

72

Luminescence Basic Zone

74A, 74B

luminescent stripes

80

luminescent

82.84

luminescent parallel stripes

86

luminescent

88

additional motif

90

Change of viewing direction

100

motif image

102

micrographs

104-A, 104-B, 104-C, 104-D

Daylight colors

104-F

Daylight color

106-A, 106-B, 106-C, 106-D

luminescence

106-G

Lumineszenzfarbton

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2009/00528 A1 [0057]
• WO 2006/087138 A1 [0057]

Claims (14)

Security element for securing security papers, security documents and other data carriers, with an optically variable daylight motif area which shows at least two different appearances in visible light from different viewing directions, and a luminescence motif region which, after UV excitation, exhibits at least one multicolored luminescence motif, wherein - The optically variable daylight motif area is adapted in at least one of its appearances to the at least one multi-colored luminescence motif. Security element after Claim 1 , characterized in that the optically variable daylight motif area is matched with a color in at least one of its appearances to the at least one multi-colored luminescence motif. Security element after Claim 1 or 2 , characterized in that the optically variable daylight motif area in at least one of its appearances and the at least one multicolor luminescent motif have at least two areas with the same hue, preferably that between the two named areas with the same hue in each case the same color gradient from hue of the first area to Hue of the second area is present. Security element according to at least one of Claims 1 to 3 , characterized in that the luminescent motif region is a true color luminescence region which contains mixed colors of at least two, preferably three primary luminescent colors, in particular mixed colors of luminescent green, luminescent red and luminescent blue. Security element according to at least one of Claims 1 to 4 , characterized in that the optically variable daylight motif area and the luminescent motif area are arranged adjacent to one another or spaced apart on the security element. Security element according to at least one of Claims 1 to 4 , characterized in that the optically variable daylight motif area and the luminescent motif area are arranged overlapping each other on the security element and the daylight motif area and the luminescent motif area in the overlapping area are adapted to one another in their color. Security element according to at least one of Claims 1 to 6 , characterized in that the optically variable daylight motif area and the luminescent motif area form mutually complementary motif parts to form an overall motif. Security element according to at least one of Claims 1 to 7 , characterized in that the optically variable daylight motif region comprises one or more elements selected from the group consisting of holograms, hologram-like diffraction structures, diffraction patterns, color shift effect structures, kinoforms, microlens effect structures, micro-optic representation arrangements, in particular moiré magnification arrangements and lenticular images , Security element according to at least one of Claims 1 to 8th , characterized in that the luminescent motif region is optically variable and, after UV excitation from different directions of excitation, exhibits at least two different appearances, or after UV excitation exhibits at least two different appearances from different viewing directions. Security element after Claim 9 , characterized in that the optically variably formed luminescent motif region is part of a micro-optical representation arrangement, in particular a moire magnification arrangement or a lenticular image. Security element according to at least one of Claims 1 to 10 Characterized in that the optically variable daylight motif region and / or the luminescence motif region contain an IR-absorbing substance, preferably in the form of patterns, characters or a code such as a barcode or QR code. Security element according to at least one of Claims 1 to 11 , characterized in that the security element is a security thread, in particular a window security thread or a pendulum security thread, a security band, or a security strip. Data carrier with a security element according to at least one of Claims 1 to 12 , Method for producing a security element according to one of Claims 1 to 12 in which - an optically variable daylight motif area is generated on a support which shows at least two different appearances in visible light from different viewing directions, and - a luminescence motif area is generated on the support, which after UV excitation generates at least one multicolored luminescence motif shows, wherein the optically variable daylight motif area is adapted in at least one of its appearances to the at least one multicolored luminescence motif.

Images