Valuable document

 

The invention relates to a valuable document, such as security, identity card, etc., equipped with at least one sign of authenticity in the form of luminescing material. The technical result is to provide easy detection and identification through the use of the composition of the phosphor dye molecular sieve, the structure of which forms an optical resonator. In such a resonator, at least one dye capable of emitting in the excitation of stimulated emission, with the specified dye introduced or embedded in a cavity of the molecular sieve and respectively located in or on the inner and outer surfaces of this molecular sieve, and the transition to the emission of stimulated emission is accompanied identifiable or detecting a change in the fluorescent properties of the dye. 5 N. and 15 C.p. f-crystals, 6 ill.

The present invention relates to a valuable document, such as security, identity card, etc., equipped with at least one sign of authenticity in the form of luminescing material (phosphor). The invention further relates to a protective element, snabjennoi products which provide luminescense material.

For labeling different kinds of products, primarily in order to protect against forgery, a while ago, use y materials. The advantage of this labeling is that with proper lighting labeled similarly object y materials emit radiation of high intensity and thus amenable to recognition or detection, whereas areas without phosphors remain relatively dark. This creates an opportunity with a high degree of reliability (sensitivity) to monitor the proper marking. In the past years for labeling used various phosphors having exceptionally wide bands of radiation. Such emission band is typical primarily for organic dyes, line width of luminescence which can be 50 nm or more. Similar to the line width of the luminescence characteristic for many classical inorganic phosphors.

In the application EP 0522627 A1 describes a method for having luminescense capacity of molecular sieves and their use as phosphors in fluorescent lamps penetrate into the cavities of zeolites, forming upon completion of the reaction chelate complexes. These chelate complexes fixed inside these cavities.

In addition, a long time ago called "ultramarine dyes or pigments" (patent of the German Empire No. 1, 1877) known colored molecular sieves, which as giving them a specific color components contain metal salts. Such a fully inorganic systems are, for example, by heating the zeolite molecular sieves in the presence of sulfides of alkali metals in a non-oxidizing atmosphere, followed by heating in an oxidizing atmosphere at temperatures above 300(JP-A 63-017217, JP-A 55-071762).

Organic dyes are usually applied to the molecular sieve processing colorless molecular sieves solutions of these dyes (see, for example, JP-A 63-017217; JP-A 53-022094 and JP-A 75-008462). At the same time, mainly in the case of neutral dyes, which have only a low degree adsorbed by the molecular sieve frame, there is a danger of leaching of dyes from molecular sieves subsequent addition of solvents. To increase the adhesion is possible only through the use of strong colors.

It is known further application in Astaurov, zeolites or zeolite-like materials) and adsorbed dye (JP 75-008452). When the use of such pigments in the paint composition should be selected so that the pigment did not react with its environment, was insoluble in the solvent used and provided a homogeneous sedimentation, which is of special importance for the composite colors. The result excludes the possibility to use a large amount of interest for the manufacture of paints, solvents and binders, and greatly limited the possibilities for the manufacture of a compound of paints using the above-described pigments.

To avoid these disadvantages due to the irreversible fixation of dyes in cavities of suitable molecular sieves. For example, in DE 4126461 describes the obtaining of such materials and their use as a pigment and optical data storage. Irreversible fixation of dyes such as phthalocyanines, phenoxazine, azo dyes, is provided by forming in situ molecular sieve around the dye. This technology is usually referred to as "crystallization inclusion" ("crystallisation-inclusion") (G. Schulz-Ekloff, "Nonlinear optical effects of dye-loaded molecular sieves", Advanced Zeo is different sieves, the so-called synthesis technology "conclusions of the ship in a bottle" ("ship-in-the-bottle"), described, for example, in G. Meuag and others (Zeolites 4 (1984), 30). While zeolites, in which ions are replaced by transition metal ions, is subjected to the interaction with o-phthalodinitrile, which leads to the formation of the dye (phthalocyanine cobalt, Nickel or copper) superplastic faujasite having a size of about 12 A. Because access to such superbooster possible only through the holes only about 7-8 a, phthalodinitrile can diffuse into these cavities, however, the diffusion of the formed dye from these cavities are impossible because of the resulting steric conditions.

In WO 93/17965, DE 4207339 A1 and DE 4131447 A1 described based on the specified synthesis in the so-called technology "prison ship in a bottle" getting ink on the basis of molecular sieves. In the molecular sieve from the class of zeolites and zeolite-like materials are introduced indigene dyes, azo dyes and hentaimovie dyes.

Common to all of the above described systems and applications is that the phosphors retain their characteristic properties which they possess in solution or in powder form. However, the implementation in C is real bands. These effects, however, have a negative impact on the possibilities of using such phosphors for marking. Since the emission band with many different phosphors mutually overlap significantly limited opportunities for selective detection of such substances. Despite the large variety of different in their chemical nature and structure of the substances of the differences in the bands of radiation are often so small that for their unambiguous identification, if at all possible, their luminescence should be investigated in a wide spectral range using sophisticated and expensive tools. Therefore, for many applications the cost of such unequivocal identification be so high that it is invoked only in exceptional cases.

Based on the foregoing, the present invention was used to develop a valuable document, as well as a protective element for labeling different kinds of products at least one phosphor, which was amenable to simple detection and identification.

This task is solved according to the characterizing features of independent claims. the> the accordance with the invention as a sign of authenticity of valuable documents, it is proposed to use luminescense system in which the line width of the radiation dyes significantly reduced in the effect of stimulated emission in order to make possible the distinction in the selected spectral region of the maximum possible number of typical narrowband lines luminescent radiation of different systems embedded in a matrix dye. A similar effect of stimulated emission occurs due to the fact that the dyes are within the surrounding cavity. Such a resonator is formed by a crystalline molecular sieve, the surface of which is surrounded emitting luminescent radiation of the dye molecules. When this fluorescent radiation passes through the microdefects of these surfaces.

Such systems are containing the dye molecular sieves, which are able to emit stimulated emission. The first time that such molecular sieves were presented at the 10th conference of the German society for zeolites. It was about containing pyridine-2 molecular sieves of type A1 RO-5. A similar effect was observed with molecular sieves of type A1 is accordance with the invention can also be used any other types containing the dye molecular sieves, showing the ability to produce stimulated emission. Along with representatives from the class pyridines and rodamine as dyes can also be used dyes from the class of Tianyou or coumarins or any other dyes from the class of laser dyes. Thus the spectral characteristics of the dyes can be adjusted by appropriate chemical modification of the chromophore. In addition, in one molecular sieve can also embed several different dyes.

The molecular sieve preferably the molecular sieve, the structure of which includes the channels and which have acceptable morphology, for example from the class AFI, LTL, MFI, M41S. So, for example, can be used, in particular, molecular sieve type ALPO-5, SAPO-5 (AFI class), as well as MARO and MAPSO, ELAPO and ELAPSO. In this case, the letter "M" means any metal, such as Mn, Mg, Co, Fe, Cr, Zn, a "EL" means a chemical element, such as Li, Be, B, Ti, As, Ga, Ge.

To improve the light fastness of the material in addition to the dye in the cavity of the molecular sieve can be embedded absorber and/or a stabilizer, ultraviolet (UV) radiation on the basis of steric difficult amines (sterically obstructed amines, logashkna to provide svetozarauladocy outside the UV spectral region, primarily on the wavelength of the specific dye. As the UV absorber can be used, for example, Tinuvin-P or Tinuvin 928 (company Ciba Geigy). As sterically obstructed amines can be used Tinuvin 144 (company Ciba Geigy), Tinuvin 123 (company Ciba Geigy), HALS 3051 (firm Clariant) or their derivatives.

Such increase the lightfastness of the substance need not necessarily be embedded in the cavities of the molecular sieve, and they can also be located in or on the external and internal surfaces of the strainer.

If the light fastness is required to raise and chemical resistance, instead of or in addition to, UV stabilizers or absorbers in the cavity can also be implemented antioxidants.

The present invention is based on the fact that such systems are preferably used for marking as located inside of particles of the resonator allows for appropriate excitation significantly narrow the line width of the luminescent radiation of the system. In result, it becomes possible to identify a large number of different dyes according to the spectral position of the luminescence spectra. In other words, these dyes can be used to receive the if, in addition, to analyze and evaluate the intensity of the emitted radiation, which is proportional to the number present phosphor, respectively, of the dye.

Thus, the proposed invention, the solution allows you to create a variety of coding systems. For example, the object may be marked with different dyes as described above. This encoding may be based on the presence, respectively absence of one or more particles.

However, you can also use a coding system, providing for variation in both the number and composition used for marking material (by selecting the appropriate combination of dye and molecular sieves). As a result, when the weak excitation is formed of an opaque mixed spectrum, which is difficult to separate into individual spectral components. While the above-described particles find their special properties under intensive agitation and appear on a background of broadband fluorescent spectrum.

Typical properties of systems formed by molecular sieves and include dyes, only begin to appear when the intense excitation light of an appropriate wavelength. Due to the threshold nature of manifestation is Noah for these systems the threshold value. Usually, these thresholds range from 0.2 to 4 MW/cm2. As excitation source can be used light sources emitting radiation of sufficient power at the corresponding wavelength. For focusing light from the excitation source to a spot sufficiently small size and thereby increasing the intensity of irradiation is possible to use the corresponding optical device.

Below are some examples of dyes, respectively, of authenticity, which can be used in accordance with the invention.

Example 1

Suitable molecular sieve, for example a molecular sieve type SAPO-5, enter the dyes from the class pyridines. When the excitation laser yttrium aluminum garnet with neodymium frequency doubled radiation containing dyes molecular sieve absorbs laser radiation with a wavelength in the range of 532 nm. When the power density of laser radiation, part 4 MW/cm2containing dyes molecular sieve characterized in the wavelength range of about 680 nm exceptionally narrow-band fluorescence spectrum similar to the spectrum of the laser radiation.

Example 2

Suitable molecular sieve, which is svedenii laser yttrium aluminum garnet with neodymium frequency doubled radiation with a power density of laser radiation, component 4 MW/cm2this material is characterized in the wavelength range of 560 nm exceptionally narrow-band fluorescence spectrum similar to the spectrum of the laser radiation.

Example 3

Suitable molecular sieve, for example a molecular sieve of type A1 PO-5 injected dye from the class of coumarins. When the excitation laser l-excimer with a wavelength of 308 nm and a power density of laser radiation, part 4 MW/cm2this molecular sieve is characterized in the wavelength range of 530 nm exceptionally narrow-band fluorescence spectrum similar to the spectrum of the laser radiation.

For the detection and unambiguous identification of such systems to detect the presence of at least one of the following characteristic properties of such systems that would allow to distinguish them from conventional phosphors, emitting no stimulated emission.

The characteristic increase in the intensity of the radiation in a narrow wavelength range when sverhdorogom excitation can be detected when observing with appropriate narrowing the spectrum of an element in the detector (measuring) the channel due to the characteristic of the threshold characteristic intense irradiation is the treatment can be detected by comparing the values of the radiation intensity in a specific system dyes narrow range of wavelengths with the magnitude of the intensity of radiation in other wavelength ranges. For this purpose it is possible to use, for example, a spectrometer with sufficient spectral resolution or suitable spectral selective elements, allowing to measure the intensity of radiation in the desired spectral regions in various detector (measurement) channels. When sverhdorogom excitation observed characteristic spectral distribution in which the maximum intensity falls on the characteristic wavelength, respectively, in which the different channels are manifested correlation between the intensity not found in conventional fluorescent dyes.

The characteristic reduction of the lifetime of the luminescence characteristic for systems with dye wavelength to a value of typically less than 300 PS, also allows to distinguish such systems from systems with conventional fluorescent dyes (for which the typical lifetime of the luminescence is more than 3 NS). For this purpose, use the excitation sources, the off time which is considerably shorter than the lifetime of the luminescence of the luminescent dyes. In this case, the detector and the measuring electronics should also be relatively short in the first transition occurs only at much higher values of the luminescence intensity, resulting in these systems can be observed significantly higher luminescence intensity compared with conventional phosphors.

In the corresponding synthesis described above molecular sieve to form micro-crystals or crystal-like structures, which are below referred to as particles. Such particles can be directly used for marking a wide variety of targets, primarily securities, passports, cards, CDs or other products of everyday use. The most simple possibility consists in adding such particles to printing ink. However, these particles can be added directly in the material of a particular object or subject. The last option is most appropriate to use for protection against counterfeiting of valuable documents, such as banknotes or identity. In the case of banknotes, the particles are preferably added to pulp in the paper manufacturing process for printing banknotes. In contrast, made in the form of cards, identity cards, such particles can be mixed with the material from which made cover or plug-in layers. Equally reading a sign of authenticity, respectively contain (s) the dye molecular (s) strainer(-a), can be combined with a sort of masking material or substance. In this case, for marking use two phosphor, one of which is a conventional phosphor, and the second is proposed in the invention contains the dye molecular sieve. When subthreshold excitation of both substances exhibit similar properties, whereas sverhdorogom excitation characteristics of radiation containing such dye molecular sieves modified in the manner described above. For example, when you print the barcode using the proposed invention the spaces between particles forming the barcode strips can be sealed in the usual phosphor, resulting in subthreshold excitation can be detected only sealed in this way the area with a uniform luminescence. However, when sverhdorogom excitation proposed in the invention of the particles in the emission spectrum in the locations of the stripes of the barcode will be observed narrow maxima of the luminescence, resulting in this code will become visible. Using the same principle can, obviously, create, and any other types of the invention the molecular sieve, can also be present in the printing ink or any other material. In this case sverhdorogoe excitation of the molecular sieve is an additional sign of authenticity and thereby increases the degree of protection against forgery.

Other options execution and advantages of the invention are discussed below with reference to the accompanying drawings. It should be noted that the drawings are given merely schematic illustrations that help to explain underlying the present invention and principles which do not represent detailed images or images to accurately observe the scale. Attached to the description of the drawings in particular, it is shown:

in Fig.1 is proposed in the invention is a valuable document with the sign of the authenticity of the invention,

in Fig.2 is a valuable document according to Fig.2 in cross section plane a-a,

in Fig.3 is another embodiment of the valuable document according to the invention in cross section plane a-a,

in Fig.4 - absorption spectrum characteristic of the proposed invention, a sign of authenticity,

in Fig.5 spectrum of the emission characteristic of the proposed invention, a sign of authenticity, and

in Fig.6 is a characteristic of the intensity of radiation emitted is Fig.1 depicts the proposed invention is a valuable document 1, equipped with the proposed invention, the protective element 2. In this example, the protective element 2 is shown in broken line plot, which is actually a sign of authenticity in the form of a printed image or print 3. In this reprint 3 are proposed in the invention contains the dye particles of the molecular sieve.

In another embodiment, the protective element 2 can be performed also in the form of labels, which has a characteristic 3 authentication in the form of print. In addition, the protective element 2 can be performed in the form of a wire or ribbon, with the characteristic 3 authentication can be placed on a substrate or base, preferably a polymer film. Such tape can either be fully placed on the surface of the valuable document 1, or at least partially embedded or embedded in the material of this valuable document. This type of accommodation tape is widely used primarily for banknotes, which often supply the so-called "window protective threads". This security thread as if woven into the paper during its manufacture, making this thread in certain areas goes directly to the surface of the paper.

Nom document 1 stamp 3, forming in this case a sign of authenticity, there are particles formed containing the dye molecular sieve. Under normal lighting the sign 3 authentication is usually not visually distinguishable and becomes apparent only after the corresponding excitation radiation. Depending on the desired effect characteristic 3 authentication, respectively, forming its imprint can contain other visually discernible under normal lighting dyes. However, it should be appreciated that these additional dyes should not absorb radiation in any meaningful extent in the range of wavelengths offered in the invention of the particles.

In Fig.3 in cross section plane a-a shows another embodiment of shown in Fig.1 valuable document 1. In this case, the protective element 2 is formed not only sign 3 authentication in the form of print, but additional imprint mask 4, which surrounds the sign 3 authentication on all plot protective element 2. In other words, such a mask the imprint 4 occupies a total area bounded by a dashed line area in Fig.1, except for the portion on which is a sign of the 3 authentication. This Masterov the t of the spectrum. Additionally, such a phosphor, while the power density of the exciting laser radiation does not exceed the characteristic of the proposed invention the particle threshold, has the same characteristics of absorption and emission, and that such particles. As a result, when subthreshold excitation of the corresponding detector is able to perceive the protective element 2 only in the form of a plot of land with uniform luminescence. In contrast, when sverhdorogom excitation characteristic of the emission of characteristic 3 authentication changes, resulting presents evidence of this 3 authentication marking appears on luminescense background formed with a camouflage print 4, in the form of high-intensity narrow emission lines.

In Fig.4 shows the absorption spectrum proposed in the invention contains the dye molecular sieves in the range of 530 nm.

When the illumination of the sign 3 the authenticity of the light source low-density energy radiation such sign of authenticity is characterized by a rather broadband fluorescent radiation, which is based on spontaneous emission, which is indicated in Fig.5 curve A. If the energy density of the radiation from the source Svetova the presentations stimulated emission. In this case, the material is characterized by an extremely narrow-band radiation in the range of 680 nm, which is reflected curve In Fig.5.

Such interdependencies are explained in Fig.6. In accordance with shown in this drawing schedule the radiation intensity IEbefore reaching the threshold Isincreases only slightly with increasing excitation intensity. Above the threshold IScontaining the dye molecular sieve emits stimulated emission, resulting in the intensity of the emitted increases much faster with increasing excitation intensity. While the surrounding dye molecular sieve performs the function of a kind of laser resonator, amplifying like a laser emitted by the fluorescent dye emission.

According to the invention also provides for the possibility of mixing with each other several types of particles consisting of various molecular sieves containing the dye. When subthreshold excitation occurs almost not resolvable emission spectrum as a relatively broad band radiation of the individual fluorescent dyes largely overlapping the traveler described above is similar to the laser radiation characteristic. In this state enables effective detection of spectral lines that are characteristic of individual dyes.

Claims

1. Valuable document (1), such as securities, identity cards and so on, is provided with at least one characteristic (3) authentication in the form luminescing material, with the composition specified luminescing material (3) comprises particles consisting of containing the dye molecular sieve, the structure of which forms an optical resonator in which at least one dye capable of emitting in the excitation of stimulated emission, and the specified dye introduced or embedded in a cavity of the molecular sieve, respectively located in or on the inner and outer surfaces of this molecular sieve, and the transition to the emission of stimulated emission is accompanied identifiable or detecting a change in the fluorescent properties of the dye.

2. Valuable document (1) under item 1, characterized in that the composition luminescing material (3) comprises particles consisting of different containing the dye molecular sieves.

3. Valuable document (1) under item 1 or 2, distinguishing the century

4. Valuable document (1) according to any one of paragraphs.1-3, characterized in that the use of the molecules of dye from the class of laser dyes.

5. Valuable document (1) according to any one of paragraphs.1-4, characterized in that the spectral characteristics of the dye regulate by specific chemical modification of the chromophore.

6. Valuable document (1) according to any one of paragraphs.1-5, characterized in that the molecular sieve has a different excited dyes.

7. Valuable document (1) according to any one of paragraphs.1-6, characterized by the presence of the second sign of authenticity.

8. Valuable document (1) under item 7, characterized in that the second sign of authenticity is the second phosphor own color which preferably corresponds to the color luminescing material.

9. Valuable document (1) according to any one of paragraphs.1-8, characterized in that luminescense material (3) is present in the amount of this valuable document (1).

10. Valuable document (1) according to any one of paragraphs.1-8, characterized in that luminescense material (3) is added to printing ink.

11. Valuable document (1) on p. 10, characterized in that the printing ink is applied in the form of code, primarily the barcode.

12. Valuable document (1) under item 10 or 11, characterized in that the containing luminescense Mat the military document (1) according to any one of paragraphs.10-12, characterized in that the printing ink applied at least in some parts of the surface of the valuable document (1) or fundamentals connected with valuable document (1).

14. Valuable document (1) according to any one of paragraphs.1-8, characterized in that luminescense material (3) is located in or on the protective element (2) connected with a valuable document.

15. The protective element (2), provided with at least one characteristic (3) authentication in the form luminescing material, with the composition specified luminescing material (3) comprises particles consisting of containing the dye molecular sieve, the structure of which forms an optical resonator in which at least one dye capable of emitting in the excitation of stimulated emission, and the specified dye introduced or embedded in a cavity of the molecular sieve, respectively located in or on the inner and outer surfaces of this molecular sieve, and the transition to the emission of stimulated emission is accompanied identifiable or detecting a change in the fluorescent properties of the dye.

16. The protective element (2) on p. 15, characterized in that it has at least one substrate or base, in a volume or on a surface is m, that it is made in the form of a strip, tape or labels.

18. The method of marking products that supply luminescense material, comprising particles consisting of containing the dye molecular sieve, the structure of which forms an optical resonator in which at least one dye capable of emitting in the excitation of stimulated emission, with the specified dye introduced or embedded in a cavity of the molecular sieve, respectively located in or on the inner and outer surfaces of this molecular sieve, and the transition to the emission of stimulated emission is accompanied identifiable or detecting a change in the fluorescent properties of the dye.

19. The method of checking the sign of authenticity in the form of luminescing material, comprising particles consisting of containing the dye molecular sieve, the structure of which forms an optical resonator in which at least one dye capable of emitting in the excitation of stimulated emission, with the specified dye introduced or embedded in a cavity of the molecular sieve, respectively located in or on the inner and outer surfaces of this moth detecting a change in the fluorescent properties of the dye, namely, that reveal narrowing and shift of spectral lines, and/or threshold character of the manifestation of characteristic properties and/or reduce the lifetime of luminescence.

20. Labelling of products which use the content of the dye molecular sieves, are able to emit stimulated luminescent radiation without an external resonator.

 

Same patents:

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

The invention relates to a device for detecting properties of a sheet material, such as banknotes or securities, using reflected light

The invention relates to a method of control of authenticity of documents and the use of this method

The invention relates to means for detecting dual banknotes at their sorting Bank automatic sorting devices

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, certificates, cheques or other securable objects
The invention relates to the field of protection of valuable products from unauthorized reproduction (fakes) and can be used mainly for large-scale production and authorized the reproduction of protected items, such as banknotes and securities, and various types of credit documents

The invention relates to data processing systems, storage devices and implementing specific programs using memory cards

FIELD: protective element for data carrier such as bank notes, securities, checks, credit cards, identity cards and similar documents.

SUBSTANCE: in accordance to the invention, the base of protective element contains first layer of material and at least first non-transparent layer of material which partially or fully covers the first layer of material. The first layer has at least two adjacent zones of different color. Element also has a pattern, formed by partial etching of non-transparent layer. The pattern passes at least partially through each of aforementioned zones, as a result of that the pattern has adjacent sections of different color in complete register, visible through aforementioned non-transparent layer.

EFFECT: creation of protective element, which is realized by means of existing equipment, used for manufacturing data carriers, containing protective elements.

4 cl, 9 dwg

FIELD: information technology.

SUBSTANCE: protected access code is entered into a data base from a "commodity key". Further, compatibility of the access code with the identification number of the commodity is checked using the data base system. In case of conformity, the data base system issues an identification certificate for a specific commodity unit with an assigned number. The said certificate will then present the access code to the identification number of the commodity in the data base.

EFFECT: invention ensures accurate identification and high level of protecting any commodity from counterfeit.

5 cl

FIELD: information technology.

SUBSTANCE: data carrier includes: a housing of the carrier in form of a unique spatially developed three-dimensional figure and has personalisation and security elements in form of visually recognisable first security elements in form of elements which identify the owner of the data carrier; a chip module with can be quickly detached and can be put inside the data carrier housing and has personalisation and security elements in form of visually recognisable second security elements, wherein: each of the first and second security elements contains at least one fragment configured to pre-scan in a defined position known by the owner; the chip module has the necessary information on payment system features.

EFFECT: high security from unauthorised use and faking the chip card.

30 cl, 11 dwg

FIELD: information technologies.

SUBSTANCE: card that may be authenticated by means of a hologram chip, comprising a base plate and an authentication verification chip, where the specified verification chip is layered onto the specified base plate, and a relief hologram, which has grooves with depth of 1/4 of falling light wave length and a part without a groove, is arranged on the specified verification chip, and also reading devices of relief hologram chip to read a relief hologram.

EFFECT: improved security without making significant changes into a money card or a credit card.

25 cl, 36 dwg

FIELD: information technology.

SUBSTANCE: authentication chip, which describes information which cannot be copied or is difficult to copy, is added to the card and apparatus for processing the card has a device for processing card authentication. Information described in the authentication chip is digitised and encrypted to obtain encrypted data which are described in the authentication certification chip. The authentication certification chip is installed on the card. The authentication certification chip authenticates the authentication chip. Before a specific operation, such as password entering, a decision is made on whether the card is authentic in order to avoid a fake card.

EFFECT: possibility of preventing use of a fake card.

43 cl, 59 dwg

FIELD: information technologies.

SUBSTANCE: method includes the following stages: a) when a bar code is entered into a reading system, at least one authentication element is generated substantially automatically, which relates to an internal physical characteristics of a base and independent on data contained in a bar code; and b) bar code (20) reading is permitted only in case the result of base authentication is positive, or bar code reading is permitted independently on the result of the base authentication, and in case of negative result of the base authentication, access is prohibited only to one part of data contained in the bar code and/or to any data possibly associated with a bar code and stored on a data carrier separate from the base. Also an appropriate system of bar code reading is proposed.

EFFECT: higher protection of bar code against attempts of its reproduction.

33 cl, 14 dwg, 8 ex

FIELD: product authentication.

SUBSTANCE: system has at least one material, providing transformation with frequency increase, as protective marking and one authenticating apparatus, which has one source of electromagnetic radiation with one previously selected wave length and one second electromagnetic radiation source with one second previously selected wave length, which are different from each other and are selected in such a way, that they cause emission by material, providing for transformation with frequency increase, of electromagnetic radiation after combined irradiation by emission with first and second wave lengths, and emitted electromagnetic radiation has radiation with one additional third wave length, specific for return of one electron from activation ion energy level to level, at which electron is excited by combined emission with first and second wave lengths.

EFFECT: higher efficiency.

6 cl, 2 dwg

FIELD: technologies for protecting valuable products from forgery.

SUBSTANCE: passive protective means is formed on product, having given structure, which makes it possible to control presence and authenticity of aforementioned means by physical analysis method by resonance effect in process of external influence on it by probing electromagnetic radiation of given radio frequency and detecting parameters of certain informative signs in resonance response of protective device for aforementioned external influence with following automatic comparison of registered parameters of these informative signs with standard values. As passive protective means, metallized, at least, three-layered resonance filter structure is utilized. As probing radiation, radio-frequency of UHF spectrum is utilized, as informative signs, characteristic peak values of frequency characteristic of direct transmission and reverse reflection coefficients are utilized.

EFFECT: minimal costs of industrial realization.

6 cl, 5 dwg

FIELD: engineering of devices for optical recognition of objects with optical encoding.

SUBSTANCE: in accordance to the invention, a banknote with light-active protective element is positioned along the transportation trajectory, irradiated by a source of stimulating effect and position of protective element is recognized by means of registration of radiation from protective element, excitation source is directed into detected location and protective element is irradiated, additional radiation from light-active protective element, received in response to light from excitation source, is registered. Recognition stage is realized using a camera with single row scanning, scanning axis of which is parallel or perpendicular to transpiration axis. Registered additional radiation may represent optical code for recognition of at least one special feature of a banknote.

EFFECT: ensured control over position and orientation of light-active materials, used in recognition process.

3 cl, 15 dwg

FIELD: technological processes.

SUBSTANCE: invention is related to methods of precious items protection against forgery and may be used for forgery protection of museum valuables, including canvases, jewelry, and also expensive medicines, objects of intellectual property, bank notes, credit papers and other securities, and also for providing possibility of further determination of their authenticity with application of technical means. At that metal with electrochemically treated surface with formation of nanosized rough edges is used as protective agent material on precious item, components of "giant" combinational scattering that is formed by such surface are used as detected informative criteria, and possibility of checking presence and authenticity of protective agent is provided by method of analysis by optical effects in the process of its external influence with probing electromagnet radiation of visible optical range.

EFFECT: simplifies production of protection elements and simplifies control.

2 cl, 1 dwg

FIELD: physics; processing of images.

SUBSTANCE: invention is related to methods of valuables counterfeit protection. Passive protective facility of preset structure is formed on valuable, and possibility for control of its availability and authenticity is provided. Protective facility material is represented by crystalline substances, for instance, ZnS, ZnSe, CdS, NaCl, LiNbO3, Bi12GeO20, etc., at that detected informative criterion is actually defective acoustoluminescence formed by these materials after exposure of intensive ultrasonic waves. At that possibility of protective facility availability and authenticity control is provided by method of analysis by optical effects in process of external effect of probing ultrasonic exposure and detection of informative criteria in optic response of protective facility at mentioned external effect with further visual and automatic comparison of registered parameters of informative criteria with informative criteria contained in data base of detection facility.

EFFECT: provision of reliable counterfeit protection of valuables and provision of possibility to detect their authenticity with the help of simple technical means.

4 cl, 4 dwg

FIELD: physics; images processing.

SUBSTANCE: invention is related to methods for counterfeit protection of valuable articles and may be used for counterfeit protection of museum valuables, expensive medicines, intellectual property objects, bank notes, credit and other securities. In method passive protective facility of preset structure is formed on valuable article, material of protective facility is magnetic quasi-2D island films Co of nanosize level, and also multi-layers, in which island films Co are separated with nanosize layers SiO2, at that detected informative criteria are abnormal absorption of radiation with foresaid nanostructures, and possibility to control availability and identity of protective facility is provided by means of analysis by optical effects in process of external effect of probing electromagnet radiation of infrared optical range.

EFFECT: higher level of counterfeit protection reliability and protection against valuable articles copying.

2 cl, 3 dwg

FIELD: physics, processing of images.

SUBSTANCE: invention relates to means of protection of valuable products against fakes and can be used for protection of museum values, including pictures, jewels, expensive medical products, objects of intellectual property and securities. Proposed method comprises the following steps, i.e. forming passive protective means of a set structure on valuable products, using nano-sized magnetic films as materials, an information symbol to be detected being produced by the reflected 2nd harmonic generation magnetically inducted with the help of external static magnetic field. Note also that, as probing electromagnetic radiation, laser coherent radiation in a near infra-red and visible optical range of wavelengths is used, and permanent magnet or electromagnet is used as a source of aforesaid external static magnetic field.

EFFECT: increase in reliability of protection against fakes and copying of valuable products.

5 cl, 2 dwg

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