Identification mark for marking valuables and method of making said mark

FIELD: physics.

SUBSTANCE: invention relates to apparatus and methods of marking valuables, mainly precious stones, particularly cut diamonds, and can be used for subsequent identification of data of the valuables. Mark 1 is made in form of an image, which is optically visualised in diffraction-reflection light, made on the polished surface 3 of the valuable object 2. The structure of the image is formed by a modified area of the surface layer of the object 2 with optical properties in the said area, which is functionally the image of mark 1, altered from the initial properties. The modified area is made in form of microlines 8, spatially formed according to type of the reflection grating, which is functionally an apparatus for increasing contrast of visual perception of the image of marker 1 in at least one of the colour hues of the spectrum of incident radiation. The structure of microlines of the modified area includes at least one impurity additive, which is selected from a group which includes noble metals or boron, ion-implanted into atomic lattices of the initial material of the object without breaking interatomic bonds of these lattices and, therefore, without changing quality of the polished surface of the object, but with change of the complex refractive index of this material. According to the method of making mark 1, before modification, a technological layer (TL) of material, which is removed after modification, is deposited on surface 3. A structure is formed in the technological layer according to type of the line grating. The corresponding area of the surface layer is modified by exposing this area to an ion beam through a mask with an image of mark 1 and the spatial structure formed in the technological layer, that way creating process conditions implantation of modifier ions into the modified area of the surface layer of the material of object 2 without breaking bonds in the atomic lattices of this material and, therefore, without changing initial quality of polishing the surface layer, but with change of its initial optical properties. The modifier used is impurity additives, selected from a group which includes noble metals or boron, ions of which alter the complex refractive index of the modified layer.

EFFECT: design of an efficient method of marking precious stones.

5 cl, 1 ex,7 dwg

The invention relates to means and methods for marking valuable items, primarily precious stones, in particular cut diamonds (diamonds), and can be used for labeling products in order to allow for the possibility of their subsequent identification.

The prior art optically invisible identification tag for marking valuable items and the method of its formation and visualization, according to which the surface of the investigated object pre-polished. On the polished surface to form optically invisible image tag by modifying region of the surface layer of the product, which is functionally the image tag. In the modification referred to the area to change the surface energy of the modified zone. Then render the said image of the label through the creation of the location mentioned modified region of the investigated object metastable environment. Through this environment visually perceived image labels get in the form of differences in the structure formed by the particles of the stable phase metastable environment, in areas polished surface with different surface energy (WO 02/089041, C1, EP 1391841).

The disadvantages known from the prior technicianlocation label and method of its formation should include the dependence of image quality from contamination of the surface.

It should also be noted that this marking with visualization through the formed condensate is appropriate only in those cases where the dimensions of the modified region (i.e. the geometrical structures of the image labels) more sizes typical of condensation droplets. If the geometrical structures of the image tag (e.g., lines or points) is comparable with the typical sizes of the drops of condensation from the environment, such as water (5÷10 μm), the shortcomings marking, expressed in low contrast and rapid disappearance of the image after rendering. Thus, the use of such labels is limited to these terms.

Closest to the declared objects of the invention is the identification tag for marking diamond and method of forming a focused ion beam, followed by visualization using a special optical means.

According to this known from the prior art solutions, the surface of the diamond pre-polished. On the polished surface to form optically visible (using a special optical means) in the reflected light image of the label. The image is formed by modifying the marked region of the surface layer of the product (which is functionally the image tag) through the focused ion beam with ion energy greater than 10 Kev, mostly 30÷50 Kev. As a result of this change the structure of the surface layer (base material) with the change of the optical properties of the modified region with respect to its original properties, the relevant optical properties of the untreated plots polished surface.

Previously on the polished surface of the diamond thin layer of conductive material (e.g. gold) to remove the charge generated on the surface from the ion beam. Image label form through continuous scanning modifiable region of the focused ion beam, by which break down the bonds between neighbouring atoms in the crystal lattices, with subsequent chemical etching this area, such as sodium nitride, and partial removal of the material of the surface layer of the product, i.e. changes in the quality of the original polished surface due to the formation of grooves (US No. 6391215).

The disadvantages known from the prior art identification tag and method of its formation, it is advisable to include.

Due to the fact that the modification is carried out by continuous scanning forming the image of the label region of the surface layer of the product focused ion beam with high energy ions, in which the area is the destruction of atomic bonds in the crystal lattice of the diamond. As a consequence, the material of the surface layer in the area of modification acquires a graphite-like structure, where etching are formed rough excavation, providing the light diffusing. However, given the fact that the difference in the refractive indices of the media diamond-the air is relatively small, the notches forming the image must be deep enough to obtain a contrast image in the reflected light, of the order of 30 nm or more. Otherwise, the image will be virtually indistinguishable in the reflected light.

Violation of the integrity of the polished surface (i.e., the presence, in fact, micro-carving) explicitly changes the appearance of the product, resulting in a decrease in its market value. For this reason dramatically reduces the scope of application of such marks.

In addition, in some cases it may be necessary to change the image of the label (for example, when changing the owner of a diamond). In this case it is necessary to provide additional polishing of the diamond to the depth of the layer corresponding to the depth previously generated labels (i.e. 30 nm or more), which also entails a reduction in the market value of the diamond.

In addition to the disadvantages of the method of forming the label can also be attributed, and the corresponding complexity of the technological process of modification. Clare is applied for that what a focused ion beam with the required (above) the ion energy can be obtained and used only in high vacuum (less than 10^-6Torr). In addition, in the method it is necessary to use time-consuming and undesirable from an environmental point of view, the process of etching, in which the first acid to remove the layer of gold, and then use the sodium nitride at a temperature of 380-550 degrees Celsius for one hour to remove material from the partially destroyed interatomic bonds.

Thus, the above-mentioned disadvantages limit the use of known from the prior art identification tag and method of its formation.

The basis for the claimed invention was based on the task of expanding the use of identification tags for marking valuable items and method of its formation through the creation of a marked surface is durable, color, optically visible in the diffraction reflected light marks with high contrast without sacrificing the quality of polishing the surface are marked.

The technical result is to increase the contrast of the rendered image identification tag that is implemented due to the phenomenon of diffraction of light by microstrain modified region, which is functionally the image tag. The viewing angles of the image is the position of this label, corresponding to the angles of diffraction of incident light formed on the diffraction structure may differ substantially from the direction of specular reflection of incident radiation (radiation light). As a result of this possible mode of observation labels with high image contrast, i.e. the observation highlighted marks on a dark background, the rest of the surface.

Additional technical challenge is the preservation of the original quality of the polished surface after the formation of the identification mark in the area of its formation (i.e. modifiable field).

The task in relation to the object of the invention device is solved by the fact that the identification tag for marking valuable items, made in the form formed on the polished surface of the product image, the structure of which is organized by the modified region of the surface layer of the product is modified, relative to the source, the optical properties of this region, which is functionally the image labels according to the invention, the modified region is made in the form of microstrip, which are spatially arranged on the reflective type diffraction grating, which functionally means of contrast enhancement of visual perception of the image is etki, in at least one of the color tones of the spectrum of the incident radiation; the structure of microstrip modifitsirovannoi region includes at least one impurity, the additive is selected from the group comprising noble metals or boron, lithium implantirovannoi in the atomic lattice of the source material without breaking atomic bonds of these lattices and, accordingly, without changing the quality of the polished surface of the product, but with the change of the complex refractive index of this material.

The task in relation to the subject of the invention "method" is solved by a method for forming an identification tag for marking valuable items, according to which: marked surface pre-polished; polished optical surfaces form the rendered image labels by modifying region of the surface layer of the product, functionally forming an image of the label; the modification is performed by the radiation flux containing impurity ions supplements while in the process of modifying transform the structure of the material modifiable region of the surface layer of the product with software changes to the original optical properties of this area, according to the invention, before the modification on the polished surface,in the area of the modified region, functionally forming an image of the label, put assistive technology layer of material that is removed after inoculation; in this layer form a spatial structure, organized according to the type of bar grating with a given constant, the stroke of which is formed by removal of material, technological layer throughout its thickness, the modification of the mentioned areas, functionally forming an image of the label, shall be implemented by exposure to this area of the ion beam through a mask with the image of the label and formed in the process layer spatial structure, whereby organize technological mode of ion implantation modifier in the modifiable region of the surface layer of the material without destroying the relations in the atomic lattice of the material and, accordingly, without changing the original quality of the polishing surface layer, but with the change of its optical properties; these optical properties can provide through use as a modifier impurity additives selected from the group comprising noble metals or boron ions which when implanted into the atomic lattice of the material change of the complex refractive index of this material.

It is advisable the complex refractive index of the Mat is of real product in the process of modifying the change in the direction of increasing its imaginary component, characterizing the absorption of incident light, whereby to provide increased reflectivity.

Optimal implantation of the impurity additives in the atomic lattice to be implemented through the use of modifier ions with an energy of not more than 10 Kev, mostly 5-6 Kev.

Valid spatial structure in assistive technology layer, organized by type of bar grating, forming by ablation of the material of this layer by means of laser radiation.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical information sources and identify sources that contain information about the equivalents of the claimed invention, has allowed to establish that it is not detected analogs characterized by the signs and the relationships between them, identical to all the essential features of the claimed technical solution and selected from the identified unique prototype, as the most similar set of features analogue, has identified a set of essential (with respect to perceived by the applicant to the technical result) distinctive characteristics in the stated objects of the invention set forth in the claims.

Therefore, the claimed technical solution meets the condition of patentability "novelty" under the current law is the law.

To verify the compliance of the declared objects of the invention-demand condition of patentability "inventive step", the applicant conducted an additional search of the known technical solutions in order to identify characteristics that match the distinctive features of the prototype of the features of the declared objects, the results of which show that the stated objects of the invention are not to follow the expert in the obvious way from the prior art because the prior art defined by the applicant, not the influence provided the essential features of the claimed technical solution of the reforms on achievement perceived by the applicant of the technical result.

In particular, in the stated objects of the invention does not provide the following transformations known prototype object.

- addition of a known object any known sign attached to it according to certain rules, to achieve a technical result, in respect of which it is the effect of such additions;

- replacement of any sign of a known object to another famous characteristic to achieve a technical result, in respect of which it is the effect of such a change,

- the exclusion of any characteristic known object while excluding about is due to the presence of this characteristic function and achievement with the usual result of such exclusion;

- increasing the number of identical signs in a known object to enhance the technical result due to the presence of the object of such signs;

- execution of a known object or part of a known material to achieve a technical result due to the known properties of the material;

- create an object with known characteristics, the choice of which and the connection between them is made on the basis of known rules and achievable technical result is due only to the known properties of the signs of this object and the relationships between them.

Therefore, the stated objects of the invention meet the requirement of the conditions of patentability "inventive step" by applicable law.

The invention is illustrated by drawings.

Figure 1 is an optical diagram illustrating the progress of the incident and reflected rays of the radiation flux of the illumination from the plots of the original polished surface marked product and its discrete modified, according to the invention, structures (microstrip), the combination of which functional forms an image tag.

Figure 2 is an optical diagram illustrating the condition of contrast observation labels in the weaker diffraction reflected from its surface radiation flux illumination, without visas, the actual perceived interference from stronger specularly reflected radiation flux mentioned backlight.

Figure 3 - the mask for forming deposited on the polished surface of the marked product auxiliary (to be deleted after inoculation) technological layer spatial structure, organized according to the type of bar grating with a given constant.

4 is a mask with the image tag.

5 is a spatial structure, organized according to the type of bar grating with a given constant in assistive technology layer through the mask in figure 3.

6 is a spatial structure in Fig 5 (organized in assistive technology layer products according to the type of bar grating with a given constant) with an overlay mask with the image generated labels.

7 is formed on the surface are marked products diffraction identification tag, the image of which is made in the form of microstrip, spatially organized by type of reflective diffraction grating (modified, according to the invention, the parts shown in black).

It is obvious that the geometric parameters:

- microstrip, the combination of which forms the image of the label, as well as constant D of the diffraction grating formed by the combination of these microstrip (see figures 1 and 7);

mask in figure 3 (in relation to the size of the permanent D transmissive grills is, formed therein);

the mask in figure 4 (in relation to the dimensions of the identification label);

- the size of the lattice constant D, formed in the process layer (see figure 5);

- size constant D reflective diffraction grating formed by a set of microstrip forming an image of the label;

in graphics of this application is shown in enlarged by several orders of magnitude scale, with the goal of visual perception listed microstructures without special optical means.

Hereinafter constructive and structural elements of the declared objects of the invention is indicated by the following positions:

1 - label (identity);

2 - products (securities marked);

3 - surface (polished marked products 2);

4 - flux (radiation falling on a modified region of the surface 3 products 2);

5 - flux (radiation reflected from the diffraction of the modified surface region 3 products 2);

6 - flux (radiation falling on the unmodified surface area 3 products 2);

7 - flux (radiation specularly reflected from unmodified and modified areas of the surface are 3 products 2);

8 - microstripe (modified surface region 3 product 2, the combination of which forms an image tag 1);

9 - source (PA the surrounding radiation);

10 - lens (receiver of the radiation reflected from the modified surface region 3 products 2);

11 - layer (assistive technology);

12 - structure (spatial, organized in layer 11 on the type of bar transmissive grating with a given constant);

13 - the mask for forming deposited on the polished surface 3 of marked products 2 assistive technology layer 11 spatial structure 12, organized by type of bar transmissive grating with a given constant);

14 is a mask with the image tag 1.

The invention is implemented as follows. Identification label 1 for marking valuable items 2, made in the form formed on the polished surface 3 products 2 optical rendered (for example, by a lens 10 of the radiation detector) in the diffraction reflected light (i.e. the reflected stream 5 radiation generated by the source 9 to the incident radiation) image tag 1. The structure of the image tag 1 is organized by the modified region of the surface layer of the product 2 modified (relative to the source) optical properties (i.e., modified in relation to the original optical properties marked the polished surface 3) in the above-mentioned areas, which is functionally depicted the em tag 1. Modified region (i.e. the image tag 1) with the above structure can be formed by various known from the prior art methods.

From the physical point of view label 1 completed diffraction, i.e. enable visual perception of the angle of diffraction with high image contrast, at least one of the color tones of the spectrum of the incident radiation 4. For this modified area of the original polished surface 3 is made in the form of microstrip 8 (focusing on the area of the image tag 1), spatially organized by type of reflective diffraction grating with a given constant d That is mentioned reflective diffraction grating is functionally by means of contrast enhancement of visual perception of the image tag 1, at least one of the color tones of the spectrum of the incident radiation.

Structure microstrip modified region, which is functionally the image tag 1 formed by including at least one impurity additives selected from the group comprising noble metals or boron)is ion-implanted into the atomic lattice of the source material 2 without breaking atomic bonds of these lattices and, accordingly, without modifying the original to the quality of the polished surface 3 products 2, but with the change of the initial optical properties of the modified region.

The method of forming an identification tag 1 for marking valuable items 2 consists in the following. Marked surface 2 pre-polished. On the polished surface 3 to form optically visualized in the diffraction reflected light image of the identification tag 1 by modifying region of the surface layer of the product 2, functionally forming an image tag 1. The modification is performed by the radiation flux containing ions of the impurity additives. In the process of modifying transform the structure of the material modifiable region of the surface layer of the product 2 to change the source of the optical properties of this field.

Before inoculation on the polished surface 3 (zone-mentioned modified region of the surface layer of the product 2) put assistive technology layer 11 of material to be removed after inoculation (i.e. after completion of the process of forming the image tag 1). In this layer 11 is formed spatial structure 12, organized by type of stroke (transmissive) lattice with a given constant D, the strokes which are obtained by removing material of this layer 11 on its entire thickness (one of the known from the prior art met the Dov, for example, using a mask 13). The modification of the mentioned areas (functional image forming marks) shall be implemented by exposure to this area of the ion beam (e.g., pulsed) through the mask 14 with the image tag 1 and formed in the process layer 11 spatial structure 12. Through this organized process mode ion implantation modifier in the material 2 in the marked (modifiable) the area of the surface of the polished layer without destroying the relations in the atomic lattice of the material 2 and, respectively, without modifying the original quality of the polishing surface layer, but with a change of its original optical properties. These optical properties can provide through use as a modifier impurity additives selected from the group comprising noble metals or boron)ions which when implanted into the atomic lattice of the material 2 changing the complex refractive index of this material.

It is advisable the complex refractive index of material 2 in the process of modifying the change in the direction of increasing its imaginary component, which characterizes the absorption of the incident light and, accordingly, to increase the reflection coefficient modificirovana the region.

Optimal implantation of the impurity additives in the atomic lattice to be implemented through the use of modifier ions with an energy of not more than 10 Kev, mostly 5-6 Kev.

Reasonable spatial structure 12 in the technological layer 11 (physically organized according to the type of bar transmissive grating) to form by ablation of material technological layer 11 using laser radiation.

Assistive technology layer 11 on the polished surface 3 marked the area of product 2 can be formed, for example, by spraying the material with the desired properties.

The identification tag may take as a whole the entire area of the marked surface, and a portion of the surface

Thus, according to the present invention can be obtained identification tag for marking valuable items, which, on the one hand invisible, when observing it with 10-20 magnifier when lighting conditions taken for examination jewelry in the diamond business. However, under certain (below) conditions of illumination and observation label clearly visualized by the naked eye.

This invisibility label very important to preserving the market value of jewelry, for example, marked with diamonds, after their marks.

The criminal code of the above as the label is being implemented under the following conditions:

- if the image tag 1 is formed on the polished surface 3 of the product 2 as a set of regular microstrip 8, organized by type of reflective diffraction grating with period D;

- to highlight the label 1 is used, the source 9, the radiation flux which is directed orthogonal to Microstream 8 at an angle θ to the normal to the surface are marked products 2 with the angular width of the spectrum of the illumination source ω.

In this case, if the surveillance tag is normal to the surface 2 with an angular width φ of the receiving lens 10 (or the observer's eye), contrasting conditions surveillance tag 1 at the wavelength λ will correspond to the following relations: θ=arcsin(λ/D)>φ+ω.

When this condition can be seen quite clearly label 1, even if microstripe 8 tag 1 are very weak, almost indistinguishable contrast amplitude, it is necessary only to increase the brightness of the backlight source 9.

A similar phenomenon occurs for example when rendering the dust in the air. Namely, when passing a bright beam of light, dust can be observed only under appreciable angle to the direction of propagation of the light beam, so that the light beam their direct rays are not blind observer.

In the case of the proposed label 1 its modified areas with diffraction with what ructural, in addition to the reflection of the primary radiation (i.e. streams 4 and 6 of the backlight source 9) under the laws of the mirror optics (stream 7), also reflect a small part of the stream 4, is incident on a modified region (i.e. the part in the form of a bundle of 5) at an angle different from the angle of specular reflection of the primary radiation (i.e. streams 4 and 6) on the value of the diffraction angle θ=arcsin(λ/D), which makes it possible to observe even very faint image of the label 1 if primary, the stronger the beam does not interfere with observation (that is optically unvisualized observer).

Thus, in the process of implementing the claimed invention provides a modification of the original refractive index of material 2 in the modified region marked the polished surface 3, which, in fact, gives the change in the value of the reflection coefficient, mainly upwards.

In addition, the diffraction reflecting the structure of the image tag 1 (formed by the combination of microstrip 8) allows to spatially allocate (i.e. to reflect at an angle θ in the area of the angle of view of the lens 10) from falling under the given angle of the thread 4, 6 radiation flux 5 radiation of a given wavelength (regulated constant D) and, accordingly, a certain hue. Thus, in the area of the angle of view of the lens 10 and, respectively, observed the body, reflects only the thread 5 of the radiation with increased intensity due to the interference at a certain value of the difference of the rays of Δ in the threads 4 and 5. Thread 7 of the radiation specularly reflected from areas of the surface 3 at an angle of incidence of threads 4 and 6, it is outside the angle of view of the lens 10, thus, to the observer, these areas are perceived as dark (black) patterns. Thus, significantly increases the contrast of the image tag 1 (see figure 1 and figure 2).

When doped (in the process of modification) ions of boron doped diamond on the surface of the semiconductor acquires properties. This dramatically changes the refractive index of the modified (doped) region. Resulting in the implementation of the tag 1 in this way the image in the reflected light looks brighter compared to unmodified areas of the surface are marked 3 product 2, as the doped region has a higher reflection coefficient.

Thus, for very small images, ineffective way of invisible ink (see WO 02/089041, C1, EP 1391841), it is advisable to have visible in the reflected light of the mark 1, but obtained without removal of material and without violating the integrity (i.e. without modifying the original quality of the polishing layer 3 product 2. That is, Celesio is different to have the label 1, obtained by changing the refractive index of material 2 by doping in the area, forming the image tag 1.

When doped, the polishing surface is not disturbed, i.e. the deterioration of the original quality of the polished surface 3 is missing.

Reflected from the doped region of the incident radiation is observed in visible light even when the depth of the modified (doped) layer of material of several nanometers. Thin film contamination, always formed on the surface of the product 2, is optically transparent for both the reflected and the incident radiation and has little effect on the contrast of the marks obtained by the declared method.

For the claimed process is important, the rate of feed of the energy of the beam (i.e. the dose of absorbed radiation divided by time). In the invention, the dose of absorbed radiation is typed material of the surface layer of the product 2 gradually (pulse), and therefore excluded the destruction of the surface layer of mutable sites, because the radiation dose in a single pulse is not sufficient for the destruction of the atomic bonds of the crystal lattices of the material, for example, diamond. The exposure mode is chosen empirically. For implementing the inventive method does not require high vacuum, because the patient is exposed to nestco the new ion beam with ion energy less than 10 Kev, mainly in the pulse mode. It is the absence of chemical etching improves the manufacturability and environmental cleanliness. The energy of the ions determines the depth of the modified layer of several nanometers, which is sufficient for long-term, almost eternal use tag 1 on the surface of the diamond.

In some cases the image tag 1 you want to modify, for example, when changing the owner of the product 2. According to the claimed invention, the label 1 can penetrate to a depth of from a few nanometers to 10 nm without breaking the original relief structure of the surface layer, and therefore, when changing it, it is quite easily removed by polishing.

The label is durable as well as modifying region of the surface layer of the product 2 with the change of the refractive index, for example, obtained by using spatially modulated pulsed ion beams metals, leading to stable changes in the composition and structure of the modified region.

An example of a specific implementation of patentable method

On the polished surface 3 of the diamond sample was formed hidden to the naked eye, but optically visible in reflected light using a microscope image tags 1 in the form of inscriptions (see Fig.6) by appropriate modification of the region of the surface layer of the sample according to the invention ion beam (ions of boron, and ions of the noble metal is gold), passed through the mask stencil 14 with the image tag 1 and the spatial structure 12 with a constant D=1-2 μm, formed in the process layer 11. Tests conducted in the period of one year from the received labels 1, showed no reduction of the original contrast of the labels 1, modified by these ions. Tag 1 are also resistant to mechanical abrasion and acids and various chemicals (solvents).

Therefore, the stated objects of the invention can find wide application in various fields of science and technology for the write-read identifying valuable product information.

Thus, the above data confirm that the implementation of the use of the claimed technical solution the following cumulative conditions:

objects embodying the claimed technical solution, when their implementation is designed to be used mainly for recording-reading identifying valuable product information

for the stated objects, as they are characterized in independent items the following formula, confirmed the possibility of their implementation using the above described in the application or known from the prior art on the priority date tools and methods;

- the volume of the points, embodying the claimed technical solution, when their implementation is able to achieve perceived by the applicant of the technical result.

Therefore, the claimed objects correspond to the requirement of the conditions of patentability "industrial applicability" under the current law.

1. Identification tag for marking valuable items, made in the form formed on the polished surface of the product image, the structure of which is organized by the modified region of the surface layer of the product is modified, relative to the source, the optical properties of this region, which is functionally the image of the label, wherein the modified region is made in the form of microstrip, which are spatially arranged on the reflective type diffraction grating, which functionally means of contrast enhancement of visual perception of the image of the label, at least one of the color tones of the spectrum of the incident radiation, the structure of microstrip modifitsirovannoi region includes at least one impurity, the additive is selected from the group comprising noble metals or boron, lithium implantirovannoi in the atomic lattice of the source material without breaking atomic bonds these sieve and, accordingly, without changing the quality of the polished surface of the product, but with the change of the complex refractive index of this material.

2. The method of forming an identification tag for marking valuable items, according to which the marked surface of the pre-polished; polished optical surfaces form the rendered image labels by modifying region of the surface layer of the product, functionally forming an image of the label; the modification is performed by the stream containing ions of the impurity additives in the process of modifying transform the structure of the material modifiable region of the surface layer of the product with software changes to the original optical properties of this region, characterized in that before the modification on the polished surface in the zone of the modified region, functionally forming an image of the label, put assistive technology layer of material that is removed after inoculation; in this layer form a spatial structure, organized according to the type of bar grating with a given constant, the stroke of which is formed by removal of material, technological layer throughout its thickness; the modification of the mentioned areas, functionally forming an image tag, exercise clause is a means of exhibiting this area ion beam through a mask with the image of the label and formed in the process layer spatial structure, whereby organize technological mode of ion implantation modifier in the modifiable region of the surface layer of the material without destroying the relations in the atomic lattice of the material and, accordingly, without modifying the original quality of the polishing surface layer, but with the change of its optical properties; these optical properties can provide through use as a modifier impurity additives selected from the group comprising noble metals or boron ions which when implanted into the atomic lattice of the material change of the complex refractive index of this material.

3. The method according to claim 2, characterized in that the complex refractive index of material in the process of modifying the change in the direction of increasing its imaginary component, characterizing the absorption of incident light, whereby to provide increased reflectivity.

4. The method according to claim 3, characterized in that the implantation of the impurity additives in the atomic lattice is carried out by use of modifier ions with an energy of not more than 10 Kev, mostly 5-6 Kev.

5. The method according to claim 3, characterized in that the spatial structure in assistive technology layer, organized by type of bar grating, formed by the blazie material of this layer by means of laser radiation.