Protective system, in particular for valuable documents

FIELD: protective system for checking authenticity of valuable documents.

SUBSTANCE: protective system in case of falling light can reconstruct a pattern outside the plane of carrier in holographic way, which pattern contains concealed information. System contains surface, at least partially transparent verification element, which in case of surface contact with protective element allows reading of information stored in it.

EFFECT: higher level of protection from forgery, increased reliability of authenticity check.

9 cl, 8 dwg

 

The invention relates to a protective system, in particular for authentication of valuable documents, comprising a protective element and a verification element, which make visible the hidden information by surface contact with each other, and it also applies to the respective protective elements, verification items and valuable documents. The invention also relates to methods and devices for reading the hidden information.

Modern color scanners and high resolution color laser or thermo-sublimation printers allow you to reproduce the documents, certificates, banknotes, identity cards, plastic cards, etc. with high detail and accurate colors. Accessibility color copiers also greatly simplified the production of high quality imitations.

There is therefore a need to protect documents, certificates, banknotes, securities, cards, etc. from a fake by applying additional security features. Such security features allow at least make the production of high quality fakes are considerably more expensive. As such protective elements known watermarks, silk threads, interwoven patterns of lines, and the use of special paper. Universal u is defamiliarisation received application of metallized embossed holograms on banknotes, credit cards and cards of Eurocheques.

WO 98/15418 described valuable document samuelfoley that in one place caused usually invisible under normal examination information. Elsewhere in the document caused a verification element, which by folding a valuable document can be combined with a protective element, which caused the hidden information, resulting in hidden information becomes visible. For example, describe what caused the microlettering text in the protective element is increased by using an optical lens as a verification element when the verification element by folding valuable document is combined with a protective element. The protective element and the verification element can also be designed in such a way that when the overlap of the verification element of the protective element, they form a so-called moire pattern. By appropriate design patterns contained in the verification or protective element, it is possible to make visible information in the moire pattern. Finally, both protective and verification element may include a polarizing element. With proper alignment of the plane of polarization, different depending on the site, this way you can make the information visible.

However, continuous improvement is an AI technique of copying and forgery at the present time there is a danger, such surface elements will not provide adequate protection against forgery. For example, it can be expected that by means of a transfer device with sufficient permission can be reproduced even the text caused by the microlettering. Similarly, if necessary, may be reproduced samples to create a moire pattern.

Therefore, it is desirable that protective or verification items had a higher degree of protection against forgery, in order to further increase the protection of valuable documents from counterfeiting and improve the reliability of authentication.

This goal is achieved by using a protective system with evidence under paragraph 1 of the formula of the invention, a protective element with evidence under paragraph 15 of claims, verification element with evidence under paragraph 16 claims, valuable document with signs in accordance with paragraphs 18-20 of the claims, the way of reading the signs pursuant to paragraph 22 of the claims or the reader with evidence under paragraph 24 of the claims.

Proposed in the invention, the protective system includes a surface protective element located in the plane of the carrier. The protective element includes a carrier hologram, which in the fall holographic light by reconstru the quote pattern, outside the plane. This pattern is kept hidden information. Further, the proposed protection system includes at least partially transparent verification element, which is in surface contact with the protective element allows incidence of light to read the information hidden in the pattern, which created a protective element in a holographic way.

Thus, in the protected object, such as a valuable document or monetary sign, or inside in one place is a protective element. This protective element is a carrier of a hologram. Contained in the hologram creates in the fall of light two - or three-dimensional drawing or pattern shifted in relation to the protected document. The pattern is kept hidden information. This hidden information, which is now located at some distance from the document can be read verification element.

That is, the hidden information is not applied directly to the valuable document, and creates a holographic way away from him. Hologram protective element makes it difficult to fake. Unlike holograms, still used as protective elements, the information stored in the generated holographic way the pattern is made visible only through verification ale the NTA.

Thus, we achieve a much more effective protection against tampering. In addition, information is not visible without verification element and, therefore, may not be copied.

In one of the best performances of the protective system protective element comprises a hologram which, when lighting creates fazokodirovannymi pattern. This hidden information can be stored in such a way that the phase of light in the field of hidden information differs from the phase of the adjacent regions of the pattern. In this case, the verification element is designed in such a way as to convert this phase modulation in the visible amplitude modulation. It is possible, for example, using a known method of phase contrast or schlieren method.

In an even more favorable performance verification element also includes a hologram which, when light is incident reconstructs the corresponding pattern, creating optical light patterns needed to convert phase modulation into amplitude modulation.

Another advantageous implementation of the proposed protection system includes a protective element, which is a hologram which, when light is incident also reconstructs linear pattern outside the plane of the carrier. Verification element is a hologram, creating a linear pattern in the same plane the tee out of the plane. This linear pattern is designed so that the moiré pattern occurs, as if the two actually present linear pattern overlap on the site of the reconstructed holographic by linear patterns. As a result of execution of holograms and created with their help line patterns in the moire pattern it is possible to store information that is visible only during closing.

In another advantageous implementation of the proposed protective system protective element when light is incident also creates by holographic pattern outside the plane of the carrier. This pattern is modulated in amplitude in such a way that it is indistinguishable to the naked eye. Verification element includes a lens structure that when applying a verification element on the protective element makes amplitude modulation visible to the eye. The lens structure may represent, for example, the strip lens structure.

In this implementation, the required distance between the object, the display lens structure, in this case, the holographically reconstructed pattern protective element, and the lens structure is created due to the fact that created by holographic pattern is outside the plane of the lens or outside the surface of contact between the verification element and the protective element. the thus, the for verification you can use the appropriate lens structure, which does not have the thickness that is required to create this distance. However, in the case of valuable documents, such as banknotes, the thickness should be minimum. In this respect, the proposed design allows to use the advantages of protection against forgery by means of lens structures even for thin valuable documents.

In another embodiment of the invention as a protective and verification element is formed by holographic in the fall of the light pattern outside the surface of contact between the verification and protective elements. Both the pattern are different parts of the hidden information. Only when combining the verification element with a protective element both parts of the hidden information in the falling light reconstructed with patterns and visible in their entirety.

Another embodiment of the invention includes a protective element, which also reconstructs holographic by out-of-plane pattern with modulated polarization. This hidden information is created in such a way that in the area of information retrieval polarization different than in the neighboring area. Verification element in this embodiment is a polarization filter, which is known fo the om can be made visible different polarization. Thus it is possible to detect hidden information. Similarly, the protective element can create a light pattern with a constant polarization and hidden information can be stored in a verification element with modulated polarization.

In another embodiment of the invention the protective element is again performed so that when the incidence of light, he reconstructs the amplitude-modulated pattern outside the plane of the carrier. This amplitude modulation carries hidden information. Verification element comprises a bitmap structure on the window element. By agreement of the form of raster patterns and created by holographic amplitude modulation can be achieved deflecting effect due created by holographic distance between the pixel structure and amplitude modulation. Depending on the direction of view of verification raster element can be observed, for example, the area under the lines of raster structures would be visible present information. On the other hand, when the vertical direction of view of verification raster structure becomes visible information, which is visible between the lines of the raster verification element. Thus, information can be make visible depending on the angle located one above the other elements.

To achieve more effective protection against forgery protective element can be designed in such a way that when the incidence of light, it creates a holographic pattern, which however does not have a permanent removal from the plane. Verification item must consider this fact through concerted appropriate spatial frequencies. With such design, information invisible in the plane of the valuable document. Only by holographic reproductions you create the actual pattern in which you saved the hidden information. This pattern is not a plane, but has a variable distance from the plane of the protective element. This variable removal can be compensated only by using a verification element. In addition, information is more concealed due to the fact that it is stored in the created by holographic, non-planar pattern, for example, only in the form of phase modulation, polarization modulation, or linear pattern, to create a moire pattern. In this case, the verification element has a different purpose. First, it compensates for different removal topographic pattern from the plane of the carrier. Secondly, he makes visible information hidden in the holographic pattern.

The holographic pattern that occurs when the light falling on protective the th element, may be located at different distances from the plane of the carrier. Especially preferred is however a distance of the order of several hundred micrometers, mostly from 100 to 300 μm is Thus possible to obtain a three-dimensional hologram. Despite the difficulties arising from the application or introduction of a hologram in a rough surface, for example, money mark, in the case of three-dimensional charts, creating a pattern only in such a small distance from the plane, the blur can be maintained within tolerances.

The information stored in the holographic pattern, which occurs when light is incident on the protective element can be read using an external verification element. Especially preferred is however a situation when one and the same valuable document marked as verification, and a protective element. By appropriately folding valuable document these elements can then be combined to make visible hidden information. Thus it is possible to create a system with samuelfoley. With a corresponding arrangement of elements on banknotes the same effect can be achieved by blending two banknotes of each other with the appropriate alignment.

Pattern, reconstructed when the light is incident on the protective element according to the t execution to be virtual or real, that is displayed on the screen.

Proposed in the invention, the protective element for use in the proposed protective system includes a hologram structure that, when light is incident by holographic reconstructing the pattern with hidden information outside the plane of the carrier. Proposed in the invention, a verification element for use in the proposed protection system is used for visualization of hidden information, which is reconstructed offer protective element outside the plane of the carrier protective element when light is incident.

Verification element is at least partially transparent. In addition to the structures that serve to render the hidden information, the verification element can contain an optional security feature. For example, may be applied to additional hologram structure that creates another pattern that is superimposed on the hidden information as background.

Proposed in the invention is a valuable document contains proposed protective element and/or the proposed verification element.

According to the proposed method of reading the information hidden in the pattern that is to be reconstructed holographic through when the light is incident on the protective element, the proposed verification element is combined with a protective element. If adenrele, for example, money mark, provided protective and verification elements, preferably by folding the document to combine verification element with a protective element. Thus it is possible verification without the use of additional tools.

The proposed protection system can be designed so that at the proper overlap of the verification element and the protective element and the corresponding incidence of light, it makes the hidden information visible to the naked eye. At the same time can be provided by the device according to the invention, which mechanicorum the verification process. Such a device includes a device that combines the protective element with a verification element. When this verification element may be part of the device or to be on the verifiable object and can be covered with a protective element by mechanical folding. Provided by the illuminating device, the illuminating combine protective and verification elements.

Thus hidden information becomes visible and can be read using a reading device, for example, the corresponding detector brightness, which is able to detect differences in brightness in the hidden information. Finally, reading from trojstvo may include a camera, providing image processing and analysis image hidden information.

The proposed forms of the invention are explained with the help of the attached figures. When you do this:

figure 1 is a schematic representation of the proposed valuable document with the proposed protective system,

figure 2 - schematic representation of the reading process according to the proposed method,

figure 3 - schematic illustration of the mechanical process of reading,

4 is a schematic side perspective of another form of embodiment, we offer valuable document during the scanning process, in the context of,

5 is a schematic illustration of another form of embodiment, we offer valuable document during the scanning process, in side section,

6 is a schematic illustration of another form of embodiment, we offer valuable document during the scanning process, in side section,

7 is a schematic representation of another form of embodiment, we offer valuable document during the scanning process, in side section and

Fig is a schematic representation of another form of embodiment, we offer valuable document during the scanning process, in side section.

1 shows a valuable document 1, for example, money mark, with a verification element 3 and the protective element 5. Shown when the ore verification element shown in shaded form. The protective element 5 includes a carrier holograms. According to one form of embodiment the media hologram in the fall of light creates a pattern outside the plane of the document 1, for example of a token money. The thus created holographic pattern is preferred distance of 7 from 100 to 300 μm from the surface of the valuable document.

In one form of embodiment, in which the verification element 3 contains a line raster, the protective element 5 generates when the incidence of light, the holographic pattern having prosobranch modulation. When combining the verification element 3 with the protective element 5 line raster verification element is at a distance from the holographic pattern. Thus, by deviations may be made visible, for example, the area under the linear pattern or in a vertical direction of view - the area between the linear pattern verification element 3. Thus you can create deflecting effects, which in other cases are visible only with the actual interval between the raster pattern and the image plane.

7 this form of embodiment is shown schematically in side section. Shown folded valuable document 1, in which the verification element 403 and the protective element 405 combined. This position is used during the process please take the cation. The term "reading" is used in the present description for verification in General, regardless of whether it is the naked eye or with the use of the devices. When the corresponding incidence of light from the hologram protective element 405 at a distance of 7 from the plane of the contact 9 is reconstructed holographic pattern 400. Verification element is transparent and is provided, for example, printed banded pattern. Due to the distance of 7 region holographic pattern 400, which is visible through the banded pattern verification element 403, depends on the direction of view of the protective element 405. Depending on the direction of gaze can be seen, for example, the area under the banded pattern 403 or the area between the strips verification element 403.

As in figure 4, 5, 6 and 8, the short vertical line on the valuable document 1 indicate in what area are verification and protective elements. Of course, this does not apply to material characteristics. It should be noted that figure 4-8 is not sustained in the scale, for example, the distance 7 is actually much less. Verification and protective elements are located directly on top of each other, and the thickness of each of them does not exceed the thickness of the valuable document 1.

Shown in figure 1, the protective element 5 may also be a carrier hologram, with Saudi when light is incident fazokodirovannymi pattern outside the plane of the valuable document 1. In this case, the verification element 3 is such an element, which converts a given phase modulation into amplitude modulation. For example, if the phase modulation provides a pattern in the form of letters OK, then by applying the verification element 3 on the protective element 5, as shown in figure 2, the hidden information "OK" 6 becomes visible to the observer 8.

In another form of embodiment, shown in figure 5 in the lateral projection, the protective element 205 in the fall of light creates a linear pattern 200 outside the plane of the valuable document 1. Verification element 203 also generates when the light is incident linear pattern outside the plane of the valuable document 1, if the verification element 203 and the protective element 205 are located on top of each other. Linear patterns arranged in such a manner that forms a moire pattern, as is known in the overlap of the actual linear patterns. By appropriate location of the holographic lines in this moire pattern information can be stored, so that, for example, was again visible inscription "OK".

Finally, the protective element 105 can also be created outside the plane of the valuable document 1 pattern 100, which is visualized by means of the lens structure 102 in the verification element 103, for example, by increasing, see figure 4. This requires some distance 7 between the lens structure and brahamin pattern, which according to the present invention is achieved by a holographic reconstruction of the pattern 100. That is, the lens structure 102 should not, as usual, to have a certain thickness to create this distance to the display object. It is possible, for example, using a lenticular lens structure.

Another simple version consists of the protective element 5, which in the fall of light reconstructs outside the plane of the valuable document 1 holographic pattern that contains only part of the information, which in itself is not significant. Verification element 3 includes a similar holographic structure, which is in the same plane outside of the valuable document 1 reconstructs the holographic pattern, showing the rest of the information. When combining verification and protective elements both pieces of information become visible when the light is incident and can be read.

For example, the partial information generated hologram when illuminated by a protective element 5 may contain part of the letters O and K, which are individually indistinguishable as such. The remainder of the letters O and K are in the same place hologram when illuminated by a verification element, when both elements are imposed on each other. Thus becomes visible all the picture is of OK.

In the other side of the projection 6 has a protective element 305, which creates out-of-plane 9 valuable document 1 pattern 300 having in different areas of different polarization. For example, if the majority of the holographic pattern 300 has a vertical polarization, in the region of the letters O and K has a horizontal polarization. Verification element 303 is a polarizing filter with vertical polarization. Thus, the light with horizontal polarization of the areas of the holographic pattern, corresponding to the letters O and K, can not penetrate through the verification element 303, so they appear black.

Created by holographic distance 7 between the reconstructed pattern protective element makes it difficult to fake. The usual immediate preservation of the information on the money sign copy easier than a hologram, which contains the relevant information in the offset plane. In addition, information is in this form that it can only be read using a verification element. Without such verification element information stored holographic way, also indistinguishable. An even higher degree of protection against forgery can be achieved if the holographic pattern 505 (Fig) is not at a constant distance 7 from the valuable document 1, and Ryoko is Stroilov, for example, on a wavy or stepped surface. Again it should be noted that the waviness is actually much smaller than shown. In this form of embodiment of the verification element 503 is executed so that he considers it inconsistent distance, which can be achieved through spatial frequency verification element.

Necessary hologram patterns for the above-described forms of embodiment can be manufactured by conventional optical method or computer-generated. Of course, they can be placed on the money mark in different places or even many times. Also valid their location in two opposite corners of a coin. The protective element can create both virtual and real images, which can be taken on the screen.

Verification element 3 is at least partially transparent. Thus, the light can get through the verification element on the protective element and make visible the stored holographic pattern for a valuable document 1. When viewed this pattern through a verification element becomes visible hidden information.

Additionally, the verification element may provide another protective feature, for example, in the form of additional hologram patterns, causing another optical is the second effect, in order to further increase the reliability of protection against forgery. Of course, the transparency of the verification element must be sufficient to read the hidden information.

Figure 2 shows the reading process. Observer 8 looks at the folded valuable document 1. Located on the protective element 5 verification element 3 makes visible information hidden in the pattern, which created a protective element 5 holographic way.

Figure 3 schematically shows a mechanical device for reading the protective system. Valuable document 1 is formed by mechanical means (not shown) so that the verification element 3 and the protective element 5 arranged on top of each other. By means not shown in the figure, the transport device is folded so valuable document is placed in the path of rays of the lighting device 10, with the direction of the light 12. The light beam 12 passes through the verification element 3 and gets on the protective element 5, which is not visible in figure 3. There is a protective element 5 generates a holographic pattern outside the plane of the valuable document 1. The holographic pattern is accepted verification element 3, which is at least partially transparent using camera 14, for example, on the CCD camera (CCD), in the direction 13. However, verification the th element 3 makes visible the hidden information which is visible in the holographic pattern. The thus created image with visible hidden information is supplied from the camera 14, for example, on the computing unit 16. Here, using known image processing techniques can be performed image analysis, for example, a comparison with the expected image, with the purpose of authentication.

With proper execution of the protection element 5 of the lighting device 10 can be positioned for folded valuable document 1.

In another, not shown form of embodiment of a scanning device according to this invention the verification element is not fixed on the valuable document, for example, and in the car, and valuable document 1 is pushed past her with a protective element 5.

Thus, the advantage of the proposed protective system is that hidden information is stored in the pattern, not located in the plane of a token money or valuable document 1. Instead, the holographic pattern is created by outside securities document 1, which makes it difficult to fake. In addition, such a holographic offset pattern with hidden information provides verification using items that usually must be at some distance from the pattern with hidden information, such as lenticular lens structures and the linear rasters deflecting effect. According to the present invention increase the thickness is not required, as desired distance creates a holographic way.

1. Protective system, in particular for the valuable document, with the surface protective element(5, 105, 205, 305, 405, 505) in the plane (9) of the carrier, is able to reconstruct in the fall holographic light by out-of-plane (9) of the carrier pattern(100, 200, 300, 400, 500), contains hidden information, and with a surface at least partially transparent verification element(3, 103, 203, 303, 403, 503), who in surface contact with the protective element(5, 105, 205, 305, 405, 505) allows you to read stored information.

2. Protective system according to claim 1, in which the protective element includes the first carrier hologram capable of reconstructing when the light falling outside the plane (9) of the carrier of the first pattern, which contains hidden information in the form of phase modulation, while the verification element configured to convert the phase modulation in the visible amplitude modulation.

3. Protective system according to claim 2, in which the verification element (3) includes a second carrier hologram capable of reconstructing with the falling of the second light pattern, which interacts with the phase modulation caused by the protective element (5) when the incidence of light, thus, h is phase modulation of the protective element (5) is converted into a visible amplitude modulation.

4. Protective system according to claim 1, in which the protective element (205) includes a first media hologram capable of reconstructing when the light falling outside the plane (9) of the carrier banded pattern (200), which contains hidden information, and the verification element (203) includes a second carrier hologram, which is in surface contact verification element (203) with a protective element (205) in the banded pattern, reconstructed when the light is incident on the protective element (205), is able to reconstruct the other striped pattern so that there is a moiré pattern, showing hidden information.

5. Protective system according to claim 1, in which the protective element (105) includes a first media hologram capable of reconstructing when the light falling outside the plane of the carrier (9) of the amplitude-modulated pattern (100), which contains hidden information, and the verification element (103) comprises a lens structure (102), which, with the imposition of a protective element (105) and a verification element (103) is able to visualize hidden information.

6. Protective system according to claim 1, in which the verification element (103) comprises a strip lens structure (102).

7. Protective system according to claim 1, in which the protective element (5) comprises a first media hologram capable reconstru is activated when the light falling outside the plane (9) of the carrier amplitude-modulated pattern, which contains the first part of the hidden information, and the verification element (3) includes a second carrier hologram, which contains the rest of the hidden information, so while light falling on both media hologram in the superimposed condition both pattern reconstructed and merged into the visible information.

8. Protective system according to claim 1, in which the protective element (305) includes a first media hologram capable of reconstructing when the light falling outside the plane (9) of the carrier pattern with polarization modulation (300), the polarization of which is in the area of hidden information is different than in the rest of the field, and the verification element (203) includes a polarizing element.

9. Protective system according to claim 1, in which the protective element (405) includes a carrier hologram capable of reconstructing when the light falling outside the plane of the carrier amplitude-modulated pattern (400), which contains hidden information, and the verification element (403) includes supplied bitmap structure window element, and the raster structure is designed so that when the surface contact of the verification element (403) and a protective element (405) it is depending on the angle of view allows us to distinguish other areas amplitude-modulated, reconstructed Golo is graficheskim by pattern (400) and thus to display hidden information.

10. Protective system according to one of claims 1 to 9, in which the protective element (505) arranged in such a way that the reconstructed holographic by pattern (500) not reconstructed in the same plane with hidden information.

11. Protective system according to one of claims 1 to 9, in which the distance (7) between the pattern reconstructed when the light is incident on the protective element(5, 105, 205, 305, 405, 505), and the plane of the carrier (9) is in the range of several hundred micrometers, preferably 100-300 μm

12. Protective system according to one of claims 1 to 9, in which the verification element (3,103, 203, 303,403, 503) and the protective element(5,105, 205, 305, 405, 505) applied to the subject, in particular, valuable document, or entered into it so that when folding the subject they can come into surface contact with each other.

13. Protective system according to one of claims 1 to 9, in which the protective element(5, 105, 205, 305, 405, 505) designed in such a way that the reconstructed when falling light pattern is virtual.

14. Protective system according to one of claims 1 to 9, in which the protective element(5, 105, 205, 305, 405, 505) designed in such a way that the reconstructed when the incidence of light, the pattern is real.

15. Protective element for use in a protective system according to one of claims 1 to 14 with a holographic element carrier which, when light is incident reconstructing holographic p is the pattern (100, 200, 300, 400, 500) with hidden information outside the plane (9) of the media.

16. A verification element for use in a protective system according to one of claims 1 to 14 for the visualization of hidden information, which is reconstructed protective element(5, 105, 205, 305, 405, 505) on 15 when light is incident in the plane outside the plane (9) of the carrier protective element, with a verification element is at least partially transparent and configured to convert lying remote from the verification element plane of the specified pattern with the phase modulation in the visible pattern with amplitude modulation.

17. A verification element for use in a protective system according to one of claims 1 to 14 for the visualization of hidden information, which is reconstructed protective element(5, 105, 205, 305, 405, 505) on 15 when light is incident in the plane outside the plane (9) of the carrier protective element, with a verification element is at least partially transparent and includes a hologram.

18. Verification element according to 17, in which the hologram is made with the possibility of conversion, lying remote from the verification element plane of the specified pattern with the phase modulation in the visible amplitude modulation.

19. Verification element according to 17, in which the hologram is made with the possibility of creating a linear pattern when Paden and light lying on the distance from the verification element plane.

20. Verification element according to 17, in which the hologram is arranged to create a pattern that is part of the total information, the fall of light lying on the distance from the verification element plane.

21. Verification element according to 17, in which the verification element is at least partially transparent and has a structure which, through appropriate local frequency is configured to render the specified variable distance to the verification element of the pattern.

22. Verification element according to p-21, with a verification element(3, 103, 203, 303, 403, 503) provided with an additional protective feature.

23. Valuable document with a protective element according to item 15.

24. Valuable document with a verification element according to one of p or 21.

25. Value document has a security system, according to one of claims 1 to 14, with the protective element(5, 105, 205, 305, 405, 505) and verification element(3, 103, 203, 303,403, 503) designed to ensure surface contact when folded valuable document.

26. Valuable document A.25, in which the verification element(3, 103, 203, 303, 403, 503) contains additional information, which together with hidden in the pattern of the protective element information is complete.

27. Valuable document according to claim 20, in which very is tatiany element (3, 103, 203, 303, 403) is a verification element according to any one of PP-19.

28. The method of reading the information hidden in the protective element according to § 15, containing under reconstruction by holographic contained in the protective element of the pattern by a light shielding element and visualization hidden in the pattern information by combining the verification element in one of p or 17 with a protective element.

29. The method according to p, wherein the protective element and the verification element is applied to the item (1), respectively, entered in item (1), at which the subject is put to ensure alignment verification element and the protective element.

30. A device for reading the information hidden in the pattern, reconstructed when the light is incident on the protective element according to clause 15, which includes a device that combines a protective element according to § 15 with a verification element according to one of PP-23, the lighting device is directed to a protective element (5), combined with a verification element, and a card reader for receiving and analyzing the light coming from the lighting device and the modified protective element (5) and the verification element (3).



 

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EFFECT: enhanced efficiency of protection against falsification.

4 cl, 3 ex

The invention relates to a sensor with improved signal-to-noise ratio, intended for use as a discriminator for determining Svornosti sheets in cash and other devices when using sheets with a great variety of properties

The invention relates to a method and apparatus for authentication marking provided in the form of a color marking on objects, in particular printed on the documents, securities, etc

The invention relates to photo readers devices
The invention relates to methods for protecting documents of great value, made in paper, from forgery or substitution

Ornament element // 2250500

FIELD: authentication technologies.

SUBSTANCE: element of ornament with visually seen mosaics of some quantity of surface parts, inserted in layer material, consisting of at least transparent cover layer and protective layer, while some portions of surface are made in form of transparent ports, other parts are at least partially overlapped by reflective layer, made in form of mirror surfaces, in form of diffraction-optical surfaces with microscopic relief structures, while portions of surface disperse falling light beams.

EFFECT: higher efficiency.

2 cl, 21 dwg

The invention relates to methods for labeling of products using holograms

Protective device // 2224289
The invention relates to security documents and other valuable products from illegal reproduction or forgery

The invention relates to information-measuring technique, and more specifically to devices identify the authenticity of the documents, is equipped with a special optical media encoded information (hologram, diffraction grating, etc.,), and is intended for the analysis of topographic feature located on the document, in compliance with the standard

The invention relates to a device for automatic recognition of diffractive optical label element protection

The invention relates to a protective elements that are placed on documents, such as banknotes, currency, documents or securities, etc. and used to determine the authenticity of documents

The invention relates to storage media with diffraction structures

The invention relates to the field of visually identifiable elements for valuable documents

The invention relates to a structural unit consisting of several parts, having a relief structure of diffraction steps, in particular for visually identifiable optical security elements for valuable documents, for example banknotes, credit cards, identity cards or checks or other securable objects, and one segment of the surface of the structural device provided by the first group of sections with the first diffraction structure of actions and at least one additional group of sections with the additional structure of the diffraction action, different from the first structure, and the parts are of such dimensions that they are not visible to the naked eye

Media // 2150746
The invention relates to storage media recording information, to prevent unauthorized copying and counterfeiting of these carriers

FIELD: engineering of protection elements.

SUBSTANCE: protection element 2 of plastic laminate 1 with surface ornament 12 mosaic-composed of surface elements 13,14,15, while plastic laminate 1 has shaped layer 5 positioned between surface 4 and protective 6 layers. Light 11 falling on boundary surface 8 between shaped 5 and protective 6 layers, is reflected, while at boundary surface 8 structures 9 are formed of optical effect of surface elements 13,14,15. in surface ornament 12 at least one pair 14,15 of surfaces is positioned, formed by first 14 and second 15 surface elements. Each surface element 14,15 has diffraction structure {B(x,y,T)}, produced by superposition of grid structure {G(x,y)} onto profiled structure {R(x,y)}. In first surface el 14 vector 16 of grid structure {G(x,y)} and vector 17 of profiled structure {R(x,y)} are practically parallel to each other, and inside second surface element 15 vector 16 of similar grid structure {G(x,y)} and vector 17 of similar profiled structure {R(x,y)} enclose practically a right angle, vectors 16 of grid structures {G(x,y)} in both surface elements 14,15 are practically parallel. Spatial frequency fR of both relief structures {R(x,y)} is more than 2500 lines in one millimeter, while spatial frequency fR of profile is at least ten times greater than spatial frequency fG of both grid structures {G(x,y)}.

EFFECT: protection element is hard to copy and has bright surface drawing altering on rotation or inclination, authenticity of element is easily checked by simple means.

25 cl, 10 dwg, 2 ex

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