WO2012041126A1

WO2012041126A1 - Anti-counterfeit method for random texture and recognizer therefor

Info

Publication number: WO2012041126A1
Application number: PCT/CN2011/078448
Authority: WO
Inventors: 孙显林
Original assignee: 上海柯斯造纸防伪技术有限公司
Priority date: 2010-09-28
Filing date: 2011-08-16
Publication date: 2012-04-05

Abstract

Disclosed are an anti-counterfeit method for random texture and a recognizer therefor, the method comprising the following steps: A, selecting texture material 2 containing randomly distributed texture element 1; B, a recognition system stores inherent recognition characteristic J of texture element 1; C, extracting and storing in the recognition system random characteristic S distributed in texture element 1, so that texture element 2 becomes anti-counterfeit marking 3; D, During recognition, the recognition system extracts characteristic J' and random characteristic S' of texture element 1' to be recognized on anti-counterfeit marking 3' to be recognized, and compares characteristic J' to recognition characteristic J and random characteristic S' to random characteristic S respectively; if one or both comparison results are non-matching, it is determined that anti-counterfeit marking 3' to be recognized is not said anti-counterfeit marking 3; otherwise, it is determined that anti-counterfeit marking 3' to be recognized is said anti-counterfeit marking 3. The present method prevents the inherent characteristic of a texture element from being copied for deceptive purposes, and the method can support a cheap, simple recognizer.

Description

A random texture anti-counterfeiting method and its recognizer

Technical field

The invention relates to an anti-counterfeiting method, in particular to a random texture anti-counterfeiting method and an identifier thereof. Background technique

The basic principle of random texture anti-counterfeiting technology is that the producer uses a random feature distribution of texels formed by a random process to judge whether the product is authentic or not by comparing the stored random features to achieve the purpose of anti-counterfeiting. A fatal flaw in the current random texture anti-counterfeiting technology is that it cannot distinguish the imitation and deception of printed texture elements under the condition of the recognition system. If the printed texture elements (ink, hot stamping, etc.) can imitate the random texture and the recognition system cannot distinguish, This can lead to a large amount of easy and low-cost copying of the counterfeiter, which leads to the failure of the anti-counterfeiting effect of the random texture anti-counterfeiting technology.

The cost-resolving recognition system's resolving power is a kind of imitative deception that can identify printed texture elements, but the increase in the cost of the identifiers it relies on will make it difficult to promote the adoption. Photographing the texture elements on the anti-counterfeiting materials with an ultra-high magnification microscope Sampling and storage, and then using the ultra-high magnification microscope to compare, this method is not only costly, but also difficult to carry. It is difficult to adjust the alignment when identifying, and the cost of the identifier is also high.

There is also a laser surface verification system in the prior art, which uses a laser beam to illuminate the surface texture of the texture material, and a plurality of CCD receivers sample and store the diffuse reflection light of different intensities of different angles. The sampling and storage process is basically the same as the identifier sampling comparison. This system has high requirements for alignment when identifying. Not only the recognition distance must be the same as the sampling and storage, but also the angle of laser irradiation. The laser surface verification system recognizes and samples. The sampling direction during storage is also exactly the same. A slight deviation may cause misjudgment, and it has higher requirements for the laser surface verification system. A moving scanning device is required, which is strict and difficult to popularize, especially on ordinary civilian products. Popularity.

Chinese patent CN1350260 "A kind of anti-counterfeiting method for random texture" relates to a method for anti-counterfeiting of random structural texel features of materials which are difficult to be repetitively copied by the prior art, and computer scanning and identification of images of random texels After the encryption process, another encrypted conversion image is generated and directly printed on the original random texel image product, and the encrypted conversion image carries the random feature information of the original random texel image, and the independent identifier is provided with the corresponding decryption program. The image is distributed to two random texels to identify the authenticity of the product. The identification system of the document does not involve the function of preventing the printed texture element from mimicking the spoofing, resulting in the random feature of the texel being easily printed at a low cost.

Chinese patent CN1430175 "-Encryption anti-counterfeiting method based on material characteristics", relates to an encryption anti-counterfeiting method based on material characteristics, including the issuance processing process of forming anti-counterfeiting information on the security protection body, and the verification processing process for verifying the anti-counterfeiting information Designed based on the principle that "complex random phenomena are difficult to repeat and artificially control", it can prevent copying and tampering, and effectively distinguish the authenticity of materials. The issuance process includes: in the manufacture of articles or bills, the tangible material is formed, a randomly distributed texture element structure is formed, and a texture element structure image acquisition area is set; the texture element structure is converted into an image that can be processed by a computer Information, using image processing methods to extract features of the image from the image information; making features, image recognition tolerances, tamper-proof information into a barcode, and printing on the barcode area; using the private key for plaintext information and encrypting by signature operation A digital signature is formed; the digital signature is created as a security identification code on the security protection body. The verification process is the reverse of the above process. The content of this document is the same as that of Chinese patent CN1430175, and the identification system does not involve a method of preventing print texture elements from imitating fraud.

At the heart of the problem is the requirement to provide a simple, low-cost, easy-to-use identification system that checks for texture elements. Description

The random characteristics of the prime distribution can prevent the low-cost process from simulating the intrinsic features of the texture elements, mainly the imitation of the printed texture elements. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a random texture anti-counterfeiting method and its recognizer that enable the intrinsic features of the texture element to be not spoofed by the printed texture element, and which can support an inexpensive and simple identifier.

Before describing the solution, the definitions of some terms of the invention are agreed upon.

1. Texture Element One of the most basic material elements used to form a random feature S, such as: a fiber, a dot, a sheet, and the like.

2, printing texture elements - using a variety of printing methods, combined with a variety of printing inks can form the texture elements, the various printing methods including offset, gravure, embossing, hole printing, electrostatic printing, inkjet printing and hot Printing and so on.

3. Imprinting of printed texture elements - Under the condition of a certain recognition system, the counterfeiter simulates the random feature S of the distribution of the texels on the anti-counterfeit mark by printing the texels, since the production cost of the printed texels is very low, if the recognition system If these printed texture elements cannot be distinguished, the anti-counterfeiting effect will be lost.

4. Identify system conditions - including the spectral characteristics, intensity, direction, number of the illumination source in the recognition system, the geometric resolution of the recognizer, the color resolution of the recognizer, and the processing of the texture element image by the data processing mode (DSP) Ways, etc.

5. Random feature S—The feature extracted by the system and related to the random process formed by the texture element in the random process, for example: For the point texture element, the random feature S is the position of the point, which can be represented by the coordinates of the point; For linear fibrous texels, the random feature S is the orientation of the fiber in the position and length direction, and the two endpoint coordinates of the fiber can be extracted to represent; for the curved fiber texel, the random feature S is the position, length orientation, and bending orientation of the fiber. , can be expressed by the coordinates of the two ends of the fiber and a midpoint; for a linear fiber of a specific structure, the random feature S can also be the rotational orientation of the fiber cross section, which can be represented by the angle of rotation.

In addition, if the texture elements on the same anti-counterfeiting mark have multiple color features, multiple geometric features, etc., the color features and geometric features at a certain position are random, in this case, the color and geometric features of the texture elements. It can also be used as a random feature S.

6. Anti-counterfeiting identification of the random feature S placement cost - when the identification system is capable of distinguishing between the texel and the printed texel, the counterfeiter cannot use the printed texel to mimic the texel, and the counterfeiter identifies the system for spoofing The counterfeiter may use the tiling element to manually form the same random feature S. The artificial placement cost of the anti-counterfeit mark is equal to the product of the number of texels on the anti-counterfeit mark and the artificial placement cost of the single texel. When the artificial placement cost is greater than or equal to the fraudulent profit, the fraudulent behavior can be stopped. The factors directly related to the placement cost are the type of the random feature S, the accuracy of extracting the random feature S (positional accuracy, orientation accuracy, etc.), the size of the texture element size, and the like. 7, can not be imitated - can understand this meaning on two levels, the first level is that under the conditions of the prior art or existing possible technology, its texture elements and their distribution of random features S can not be printed imitation; The two levels are unprofitable for the behavior of falsifying imitation texels and their distribution of stochastic features S, that is, when the counterfeiter falsifies an anti-counterfeit mark, its pseudo-increment is greater than or equal to the falsified profit. The object of the invention is achieved in this way:

A random texture anti-counterfeiting method, comprising the following steps: Instruction manual

A. Select a texture material randomly distributed with texel 1 2;

B, the identification system stores the texture element 1 inherent identification feature J;

C. Extract and store the texels in the recognition system 1 The random features of the distribution S make the texture material 2 an anti-counterfeit identifier

3;

D. When identifying, the recognition system extracts the feature Γ and the random feature S′ of the tex element to be identified on the anti-counterfeit identifier 3′ to be identified, and compares the feature J′ with the recognition feature J and the random feature S′ and the random feature S respectively. If the comparison result has two or one mismatches, it is determined that the anti-counterfeit identification 3' to be identified is not the anti-counterfeit identification 3. If the two items are consistent, it is determined that the anti-counterfeiting identification 3' to be identified is the anti-counterfeiting identification 3. In the specific identification, when it is determined that the anti-counterfeit identification 3' to be identified is the anti-counterfeit identification 3, the product that informs the identifier that the anti-counterfeiting identification 3' is present is genuine; when it is determined that the anti-counterfeiting identification 3' to be identified is not the anti-counterfeiting identification 3 The product that informs the identifier that the anti-counterfeiting mark 3' is a counterfeit product.

The effect of the present invention is that, by selecting a special texel 1, an inherent recognition feature L that is unique to the texel 1 that cannot be mimicked by the printed texel can be used to enable the recognition system to be easily and reliably identified. The identifier of the identification system is small and low-cost, and the manufacturing cost of the anti-counterfeit label itself can be greatly reduced, and the counterfeiting cost is greatly increased. DRAWINGS

Figure 1 is a flow chart for identifying a random texture;

2 to 10 are schematic views showing the structure of a fluorescent light angle color changing tex element 6;

11 to 12 are schematic views showing the structure of the interference film texture element 12;

13 to 16 are schematic views showing the structure of a colored light angle color changing texture element 16;

17 to 27 are schematic views showing the structure of the shadow texture element 22;

28 to FIG. 30 are schematic diagrams showing the shading of the shadow texture element 22 under illumination of the light source and B;

Figure 31 - Figure 32 Schematic diagram of the random feature S of the texel 1;

Figure 33 is a schematic diagram of the texel 1 in the anti-counterfeit mark 3;

Figure 34-37 are schematic views of various anti-counterfeit marks 3;

Figure 38 - Figure 41 Schematic diagram of the identifier. detailed description

The invention provides a random texture anti-counterfeiting method, as shown in FIG. 1, comprising the following steps:

A. Select a texture material randomly distributed with texel 1 2;

3;

D. When identifying, the recognition system extracts the feature J′ and the random feature S′ of the texture element to be identified on the anti-counterfeit identifier 3′ to be identified, and compares the feature J′ with the recognition feature J and the random feature S′ and the random feature S, respectively. If there is two or one mismatch in the comparison result, it is determined that the anti-counterfeit identification 3' to be identified is not the anti-counterfeit identification 3. If the two items are consistent, it is determined that the anti-counterfeiting identification 3' to be identified is the anti-counterfeiting identification 3. In the specific identification, when it is determined that the anti-counterfeit identification 3' to be identified is the anti-counterfeit identification 3, the product that informs the identifier that the anti-counterfeiting identification 3' is present is genuine; when it is determined that the anti-counterfeiting identification 3' to be identified is not the anti-counterfeiting identification 3 The product that informs the identifier that the anti-counterfeiting mark 3' is a counterfeit product. Instruction manual

The texel 1 is a texel whose printed texel cannot mimic its identifiable feature J.

Further, the texture element 1 is a texture element in which the printed texture element cannot imitate its recognition feature J under the condition of the recognition system.

Wherein, the texel 1 is a light angle variation texel 4, and when the light source illuminates the glazing variation texel 4 from different illumination angles set, the vertices change texel 4 exhibits different optical features, Differences in optical characteristics can be identified by the identification system. Such a light source illuminates the optical characteristic difference and the selection of the optical angle change texture element 4, the spectral characteristics of the light source, the illumination angle, the accuracy of the recognizer, the color resolution, the image processing mode, etc. Correlation, the essence of this difference mainly reflects the stereoscopic features of the light angle variation texel 4, which is not possible with the printed texture elements.

The texel 1 is a photochromic texel element 5, and when the illuminating illuminating texel 5 is illuminated from a different illumination angle set, the goniochromic texel 5 exhibits different spectral features, the spectral features The difference can be identified by the identification system.

The texel 1 is a fluorescent light morphing tempering element 6, and when the excitation light source illuminates the fluorescent goniochromic tempered element 6 from different set illumination angles, the fluorescent goniochromatic texel 6 exhibits different spectral characteristics. The difference in spectral characteristics can be identified by the identification system.

Further, the fluorescent light angle color changing texel 6 is a fiber, and the cross section of the fiber is composed of two material portions of the first luminescent material portion 7 and the barrier material portion 8, and the barrier material portion 8 is capable of blocking the first luminescent material portion. a barrier material for excitation light of 7, the fiber comprising the following structure:

Structure 1 (see Fig. 2): the median plane of the fiber is curved, the median plane is composed of a longitudinal line 69 of each cross section of the fiber, the fiber has a circular cross section, and the first luminescent material The portion 7 is distributed on one side of the median plane.

Structure 2: The fiber is flat, the median plane of the fiber is curved, and the median surface is composed of a short axis perpendicular line 69 of each cross section of the fiber, and the first luminescent material portion 7 is distributed One side of the median plane.

Structure 3 (see Fig. 3): the fibers are flat linear fibers, and a first luminescent material portion 7 is distributed on one side of the median plane, the median surface being in the short axis of each cross section of the fiber The vertical line 69 is formed.

The structure 1, structure 2, structure 3 has an inherent orientation when freely attached to the surface of the texture material 2, so that the purpose of the design is to illuminate the fluorescent light angle color changing texture element from different angles in the identifier. In the upper case, there is a significant difference in the intensity of the spectral features exhibited by the emitted light, and the difference has an inherent correspondence, and the inherent correspondence is not realized by the printed texture element, thereby using the fluorescent light angle color changing texture element The recognition feature L of 6 determines the authenticity of the texture element to be recognized to prevent imitation fraud of the printed texture element.

As shown in FIG. 4, the fluorescent light angle color changing texel 6 is a fiber, the fiber has a circular cross section, and the cross section is composed of two material portions of the first luminescent material portion 7 and the second luminescent material portion 9. The emitted light of the first luminescent material portion 7 and the second luminescent material portion 9 exhibit different spectral characteristics, the median plane of the fiber being curved, the mid-vertical surface being constituted by a mid-perpendicular line 69 of each cross-section of the fiber, The first luminescent material portion Ί and the second luminescent material portion 9 are symmetrically distributed on both sides of the mid-vertical surface. The structure can be freely attached to the surface of the texture material 2 and has an inherent orientation. The purpose of the design is to emit different light when the excitation light source illuminates the fluorescent light angle color changing texture element 6 from different angles in the identifier. Spectral characteristics, the difference of the spectral features has an inherent correspondence, the inherent correspondence is not achievable by the printed texture element, and the identification feature L of the fluorescent light angle color changing texture element 6 is used to determine the texture element to be identified. True or false, to prevent the imitation of printed texture elements.

The fluorescent light angle color changing texel 6 is a fiber, and the cross section of the fiber is blocked by the first luminescent material portion 7. Description

The material portion 8 and the second luminescent material portion 9 are composed of three material portions, and the emitted light of the first luminescent material portion Ί and the second luminescent material portion 9 exhibit different spectral characteristics, and the blocking material portion 8 is capable of blocking the first luminescent material portion. A barrier material for the excitation light of the second and second luminescent material portions 9, the barrier material portion 8 is distributed between the first luminescent material portion 7 and the second luminescent material portion 9, the fibers comprising the following structure:

Structure 1 (see Fig. 5): the median plane of the fiber is curved, the median plane is composed of a perpendicular line 69 of each cross section of the fiber, the fiber has a circular cross section, and the first luminescent material The portion 7 and the second luminescent material portion 9 are symmetrically distributed on both sides of the mid-vertical surface.

Structure 2 (see Fig. 6): the fiber is flat, the median plane of the fiber is curved, and the mid-vertical surface is composed of a short-axis vertical line 69 of each cross section of the fiber, the first luminescent material portion 7 and the second luminescent material portion 9 are symmetrically distributed on both sides of the mid-vertical surface.

Structure 3: the fiber is a flat linear fiber, and the first luminescent material portion Ί and the second luminescent material portion 9 are symmetrically distributed on both sides of the median surface, the median surface being the short axis of each cross section of the fiber The mid-perpendicular line 69 is formed.

The structure 1 fluorescent light angle color changing texture element 6, structure 2 fluorescent light angle color changing texture element 6 and structure 3 fluorescent light angle color changing texture element 6 freely attached to the surface of the texture material 2, has an inherent orientation, when recognized, in the identifier When the excitation light source illuminates the fluorescent light angle color changing texel 6 from different angles, the emitted light exhibits different spectral characteristics, and the difference of the spectral features has an inherent correspondence relationship, and the inherent correspondence relationship is that the printed texture element cannot Realizing, as the identification feature J of the fluorescent light angle color changing texture element 6, the true and false of the texture element to be recognized is determined to prevent the imitation of the printed texture element.

The fluorescent light angle color changing texture element 6 is a fiber, and the fluorescent light angle color changing texture element 6 is at least composed of a first light emitting material portion 7 distributed on the fiber cross section and extending along the fiber length direction. The second luminescent material portion 9 and the third luminescent material portion 10 are composed of three material portions, the emitted light of the at least three luminescent material portions exhibiting different spectral characteristics, and the at least three luminescent materials are partially geometrically distributed, The fiber can have at least two different excitation light illumination angles, and when irradiated to the fluorescent light angle color change lithography element 6, can exhibit different spectral characteristics, and the fiber comprises the following structure:

Structure 1 (see Fig. 7): the fiber has a circular cross section, and the first luminescent material portion 7, the second luminescent material portion 9, and the third luminescent material portion are distributed on the cross section with different spectral characteristics of the emitted light. 10. The three luminescent material portions are fan-shaped structures adjacent to each other.

Structure 2 (see Fig. 8): the fiber has a circular cross section, and the cross section is provided with three different luminescent material portions 7, second luminescent material portions 9, and third luminescent materials having different spectral characteristics of emitted light. Portion 10 and a barrier material portion 8, the barrier material portion 8 being spaced between the three portions of luminescent material.

Structure 3 (see Fig. 9): the fiber has a circular cross section, and the cross section is provided with a first luminescent material portion 7, a second luminescent material portion 9, and a third luminescent material portion having different spectral characteristics of the emitted light. 10 and a fourth luminescent material portion 11, the four luminescent material portions being fan-shaped structures adjacent to each other.

The structure 1 fluorescent light angle color changing texture element 6, structure 2 fluorescent light angle color changing texture element 6, structure 3 fluorescent light angle color changing texture element 6 freely attached to the surface of the texture material 2, the orientation of the cross section of the fiber is random, identification When the excitation light source illuminates the fluorescent light angle color changing tex element 6 from different angles, the emitted light exhibits different spectral characteristics, and the difference has a fixed correspondence with the rotation angle of the cross section, and the printed texture The element cannot achieve the fixed correspondence, and the difference is used as the identification feature L of the fluorescent light angle color changing texture element 6 to determine the authenticity of the texture element to be recognized to prevent the imitation of the printed texture element. Since the cross-section rotation orientation is random, it can be Description

The rotational orientation of the fiber cross section is a random feature s. After the illumination source illumination angle is determined, the spectral characteristics of the fluorescent light angle color change texture element 6 have a fixed correspondence with the rotational orientation. The random feature S of the rotational orientation of the fluorescent light-angle discoloration texel 6 can be obtained as follows: When the random characteristic S of the fiber is stored, the irradiation direction of the excitation light source and the spectrum of the fluorescent light-angle color-changing texture element 6 in the irradiation direction are recorded. Feature, In recognition, although the illumination source illumination angle in the identifier is different from the stored excitation light source illumination angle, the recognizer can recognize the difference in the angle, thereby determining the rotational orientation of the fluorescent light angle color change texture element 6.

As shown in FIG. 10, the texture material 2 is distributed with a fluorescent light-angle color-changing texture element 6, and at least a first light-emitting material portion and a barrier material portion 8 are distributed on a cross section of the fluorescent light-angle color-changing texture element 6. The fluorescent light angle color changing texel 6 is structurally designed to ensure that when the excitation light source is irradiated perpendicular to the surface of the texture material 2, the barrier material portion 8 can block the excitation light from impinging on the first luminescent material portion 7, when the excitation light source is tilted or parallel When the surface of the textured material 2 is irradiated, the excitation light source can be irradiated onto the first luminescent material portion 7.

The texel 1 is an interference film texel 12 comprising a multilayer interference film 14 having at least two different illumination angles. When the interference film texel 12 is illuminated, different spectral characteristics of the emitted light can be exhibited, the spectral features The difference can be identified by the identification system, the interference film texture element 12 comprising the following structure:

Structure 1 (see Fig. 11): The interference film texture element 12 is in the form of a sheet, wherein the multilayer interference film 14 is parallel to the surface of the texture material 2;

Structure 2 (see Fig. 12): The interference film texture element 12 is composed of the multilayer interference film 14 and the carrier 15, the multilayer interference film 14 is perpendicular to the surface of the texture material 2, and the carrier 15 supports the multilayer interference film 14 vertically. On the surface of the texture material 2.

The multilayer interference film 14 is formed by vacuum plating.

Further, the multilayer interference film 14 above the texture material 2 has at least two discoloration categories. For example, red to blue, yellow to blue, etc., the purpose of this design is to avoid the possibility of printing overlays to mimic the interference film texture elements 12.

Further, the shape of the interference film texture element 12 is a polygon, a triangle, an elongated strip, a pentagonal star, a meniscus or the like.

The texel 1 is a colored light-angle color-changing texel 16 . When different illuminating angle light sources illuminate the colored light-angle color-changing texels 16 , different reflected light spectral features are presented, and the difference of the spectral features can be identified by the System identification.

The color here is relative to the range in which the recognizer can perceive the spectrum.

The colored light angle color changing texture element 16 is a fiber and comprises the following structure:

Structure 1 : The median plane of the fiber is curved, the median plane is composed of a vertical line of each cross section of the fiber, the fiber cross section is circular, and the fiber cross section is partially separated by a spacer material. The first colored material portion 18 is composed of two material portions, the spacer material portion 17 is capable of blocking the illumination light, and the first colored material portion 18 is distributed on one side of the median surface.

Structure 2 (see Fig. 13): the fibers are flat, the medial plane of the fibers is curved, and the median plane is formed by a mid-perpendicular line 69 of each cross-section of the fibers, the fibers being cross-sectioned by a space The material portion 17 and the first colored material portion 18 are composed of two material portions, the spacer material portion 17 can block the illumination light, and the first colored material portion 18 is distributed on one side of the mid-vertical surface.

Structure 3: The fiber is a flat linear fiber, and the fiber cross section is composed of a spacer material portion 17 and two first color material portions 18, and the spacer material portion 17 can block the illumination light, and the first colored material portion 18 Distributed on one side of the median plane.

Structure 4: The median plane of the fiber is curved, the median plane is composed of a vertical line of each cross section of the fiber, the fiber has a circular cross section, and the cross section is composed of a first colored material portion 18. The second colored material portion 19 and the spacer material portion 17 are composed of three material portions, and the first colored material portion 18 and the second colored material portion 19 exhibit different spectra. Description

Characteristic, the spacer material portion 17 can block the illumination light, the spacer material portion 17 is distributed between the first colored material portion 18 and the second colored material portion 19, and the first colored material portion 18 and the second colored material portion 19 are distributed in the sagging The two sides of the face.

Structure 5 (see Fig. 14): the fiber is flat, the median plane of the fiber is curved, and the median plane is composed of a perpendicular line 69 of each cross section of the fiber, and the fiber cross section is A colored material portion 18, a second colored material portion 19 and a spacer material portion 17 are composed of three material portions, and the first colored material portion 18 and the second colored material portion 19 exhibit different spectral characteristics, and the spacer material portion can block the illumination light. The spacer material portion 17 is distributed between the first colored material portion 18 and the second colored material portion 19, and the first colored material portion 18 and the second colored material portion 19 are distributed in the vertical plane.

Structure 6: the fiber is a flat linear fiber, and the fiber cross section is composed of a first colored material portion 18, a second colored material portion 19 and a spacer material portion 17, three material portions, a first colored material portion 18 and The second colored material portion 19 exhibits different spectral characteristics, the spacer material portion 17 can block the illumination light, and the spacer material portion 17 is distributed between the first colored material portion 18 and the second colored material portion 19, the first colored material portion 18 and The second colored material portion 19 is distributed on both sides of the mid-vertical surface.

Structure 7: at least a first colored material portion 18, a second colored material portion 19 and a third colored material portion 20 are distributed on the fiber cross section, and the at least three colored material portions exhibit different spectral characteristics, the at least The special design of the geometrical distribution of the three colored materials enables the fibers to have at least two different illumination light illumination angles. When the fibers are irradiated, the reflected light energy exhibits different spectral characteristics, and the fibers comprise the following structures:

Structure 7-1 (see Fig. 15): the fiber has a circular cross section, and the first colored material portion 18, the second colored material portion 19, and the third portion of the fiber cross section are distributed with three different reflected light spectral features. a colored material portion 20 and a spacer material portion 17, the spacer material portion 17 being spaced apart between the three colored material portions;

Structure 7-2 (see Fig. 16): the fiber has a circular cross section, and the first colored material portion 18, the second colored material portion 19, the first cross section of the fiber having four different reflected light spectral features are distributed The trichromatic material portion 20, the fourth colored material portion 21, and a spacer material portion 17 are spaced apart between the four colored material portions.

The texel 1 is a shadow texel 22, and the shadow texel 22 includes a occlusion structure capable of forming a shadow. The occlusion structure can be formed when the shadow texel element 22 is illuminated from different illumination angles set. Different shades, the difference in shadows can be identified by the recognition system.

The optical feature of the shadow is essentially the conversion of the stereo information of the shadow texture element 22 into the shadow plane optical feature information which is easily recognized by the corresponding identifier, and the optical characteristics of the shadow of the specific design as a function of the illumination angle Printed texture elements are impossible to imitate, and the difference in shadows of the planes can be easily and cost effectively collected using a low cost recognizer.

Further, the shadow texture element 22 comprises the following structure - structure 1 (see FIGS. 17a, 17b): the shadow texture element 22 is a long stripe texture element 23, the elongated stripe texture element 23 has a rectangular cross section, The long side of the rectangle is perpendicular to the surface of the textural material 2, the mid-vertical plane of the shadow texture element 22 being curved, the mid-vertical plane being defined by the cross-section of the shadow texture element 22 perpendicular to the surface of the texture material 2. The vertical line is composed.

The elongated stencil element 23 of the structure 1 can extract three images when the recognizer recognizes, as shown in Fig. 28a, the light source A is irradiated to form a shadow length, and the shadow is inclined to the right; as shown in Fig. 28b, the light source B is irradiated to form a shadow d. ₂ length, the shadow d _{2 is} inclined to the left; as shown in Fig. 28c, when the light sources A and B are simultaneously illuminated, the shadow is the width d _{3 of the} occlusion structure, Instruction manual

The length of di.d ₂ is related to the length of the long side of the rectangle and the angle of illumination, and this relationship printed texture elements cannot be formed.

The random feature S captures the two endpoint coordinates of the long strip of texture elements 23 on Figure 17b.

Structure 2 (see Figures 18a, 18b): The shadow texture element 22 is a spherical texture element 24 .

The structure 2 is a spherical spheroidal texture element 24, and the recognizer can extract two images when recognizing, as shown in FIG. 29a, the shadow formed by the oblique angle of the light source A and the spheroidal texture element 24 is elliptical, and the length of the long axis is 4. The shadow is inclined to the right; as shown in Fig. 2%, when the light source B illuminates the spherical texture element 24 at an angle perpendicular to the surface of the texture material 2, the formed shadow is a circle, and the diameter d ₂ of the circle is the diameter of the sphere This shadow relationship printed texture element formed by the spherical texture element 24 cannot be formed.

The random feature S can acquire the spherical center coordinates of the sphere on Fig. 18b.

Structure 3 (see Figures 19a, 19b): The shadow texture element 22 is flat, the flat surface of the shadow texture element 22 being parallel or approximately parallel to the surface of the texture material 2, the shadow texture element 22 being along its length The parallel extending occlusion structure portion 25, the first transparent material portion 26 and the second transparent material portion 27 are composed of three material portions, and the occlusion structure portion 25 is located at the first transparent material portion 26 and the second transparent material portion. Between 27, the occluding structure portion 25 has a rectangular or nearly rectangular cross section, and the long side of the rectangular or approximately rectangular shape is perpendicular to the surface of the texture material 2, the first transparent material portion 26 and the second transparent material portion. The refractive index of 27 is different.

The shadow texture element 22 of the structure 3, when recognized, the recognizer can extract three images, as shown in Fig. 19a, the light source A angle obliquely illuminates the shadow texture element 22 at the refractive index! The shadow length formed by the refraction in the first transparent material portion 26 is obliquely irradiated with the angle of the light source B. The shadow texture element 22 is different in the shadow length formed by the refraction in the second transparent material portion 27 of the refractive index _n2 at the incident angle. On the same premise, the difference is due to the difference in refractive indices of the two different materials. When the source A angle and the source B angle simultaneously illuminate the shadow texel 22, the shadow width is equal to the material thickness of the occluding structure portion. Such a shadow relationship printed texture element formed by the specially designed shadow texture element 22 cannot be formed.

The random feature S can acquire the coordinates of the two endpoints of the occlusion structure portion 25 on Figure 19b.

Structure 4 (see Figs. 20a, 20b): the shadow texture element 22 is flat, the flat surface of the shadow texture element 22 being perpendicular or approximately perpendicular to the surface of the texture material 2, the sagging of the shadow texture element 22 The face is curved by a vertical line of the cross-section of the shadow texture element 22 perpendicular to the surface of the texture material 2, the shadow texture element 22 being part of the occlusion structure extending parallel along its length 28. The third transparent material portion 29 and the fourth transparent material portion 30 are composed of three material portions, and the shielding structure portion 28 is located between the third transparent material portion 29 and the fourth transparent material portion 30, The occluding structure portion 28 has a rectangular or nearly rectangular cross section, and the long side of the rectangular or approximately rectangular shape is perpendicular to the surface of the textured material 2.

The curved shape of the structure 4 shadow texture element 22 is to ensure that the flat surface of the flat fiber can be perpendicular or approximately perpendicular to the surface of the texture material 2, and the shadow feature of the structure 4 is similar to that of the structure 1.

The random feature S can acquire the coordinates of the two endpoints of the occlusion structure portion 28 on the map 20b. ,

Structure 5 (see Figures 21a, 21b): the shadow texture element 22 is flat, the flat surface of the shadow texture element 22 being parallel or approximately parallel to the surface of the texture material 2, along which the shadow texture element 22 is The fifth transparent material portion 32 and the shielding structure portion 31, which are extended in the front-rear direction and extend in the left-right direction, are composed of two material portions, and the shielding structure portion 31 has a rectangular or nearly rectangular cross section, and the rectangular or approximately rectangular long side The fifth transparent material portion 32 is a transparent material having a certain refractive index perpendicular to the surface of the texture material 2. Instruction manual

In Fig. 30a, the shadow texture element 22 of the structure 5, as shown in Fig. 30a, when the light source B angle illuminates the shadow texture element 22, the shadow of the light through the occlusion of the occluding structure portion 31 and the refraction of the fifth transparent material portion 32 The size of 57 is d _{1 ;} as shown in FIG. 30b, when the light source A angle illuminates the shadow texel 22, the size of the shadow 58 formed by the occlusion of the ray through the occluding structure portion 31 without any refraction is d _2; When the light source A angle and the light source B angle simultaneously illuminate the shadow texture element 22, the width d _{3 of the} shadow 59 is equal to the width of the occlusion structure portion 31, and this shadow relationship is formed by the specially designed shadow texture element 22. Texture elements cannot be formed.

The random feature S can acquire the coordinates of the two endpoints of the occlusion structure portion 31 on Fig. 21b.

Structure 6 (see Figures 22a, 22b): The shadow texture element 22 is a flat shape, the flat surface of the shadow texture element 22 being parallel or approximately parallel to the surface of the texture material 2, the cross-section of the shadow texture element 22 being distributed There are three material portions of the shielding structure portion 33, the sixth transparent material portion 34 and the seventh transparent material portion 35, and the shielding structure portion 33 is located between the sixth transparent material portion 34 and the seventh transparent material portion 35, the shadow The occluding structure portion 33 on the cross section of the texture element 22 is a rectangle or an approximately rectangular shape, the long side of the rectangular or approximately rectangular shape being perpendicular to the surface of the texture material 2, the sixth transparent material portion 34 and the seventh transparent material portion 35. For a transparent material having a certain refractive index, the area of the sixth transparent material portion 34 on the cross section of the shadow texture element 22 is more than twice the area of the seventh transparent material portion 35.

The shadow feature of the structure 6 shadow texture element 22 is similar to the structure 5 shadow texture element 22, and the added seventh transparent material portion 35 acts to cause the structure 6 shadow texture element 22 to more easily lie flat on the surface of the texture material 2.

Structure 7 (see Figures 23a, 23b): The shadow texture element 22 is flat, the flat surface of the shadow texture element 22 being parallel or approximately parallel to the surface of the texture material 2, the shadow texture element 22 being along its front and rear direction The first occluding structure portion 38, the eighth transparent material portion 37, and the second occluding structure portion 36, which are distributed in parallel and in the left-right direction, are composed of three material portions, and the first occluding structure portion 38 and the second occluding structure portion 36 are formed. Symmetrically distributed on the left and right sides of the eighth transparent material portion 37, the first occluding structure portion 38 and the second occluding structure portion 36 are both rectangular or approximately rectangular in cross section, and the rectangular or approximately rectangular long sides are perpendicular On the surface of the texture material 2, the first shielding structure portion 38 and the second shielding structure portion 36 have the same light shielding property, and the eighth transparent material portion 37 is a transparent material having a certain refractive index.

The shadow feature of the structure 7 shadow texture element 22 is similar to the structure 5 shadow texture element 22, and the two portions of the first occlusion structure portion 38 and the second occlusion structure portion 36 are provided to further increase the printed shadow texture element 22 The impossibility of imitation.

The random feature S can acquire the coordinates of the two end points in the longitudinal direction of any of the second occlusion structure portion 36 and the first occlusion structure portion 38 of Fig. 23b.

Structure 8 (see Figures 24a, 24b): The shadow texture element 22 is flat, the flat surface of the shadow texture element 22 being parallel or approximately parallel to the surface of the texture material 2, the shadow texture element 22 being along its front and rear direction The third shielding structure portion 41, the ninth transparent material portion 40, and the fourth shielding structure portion 39, which are distributed in parallel and in the left-right direction, are composed of three material portions, and the third shielding structure portion 41 and the fourth shielding structure portion 39 Symmetrically distributed on the left and right sides of the ninth transparent material portion 40, the third occluding structure portion 41 and the fourth occluding structure portion 39 are both rectangular or approximately rectangular in cross section, and the rectangular or approximately rectangular long sides are perpendicular On the surface of the texture material 2, the third shielding structure portion 41 and the fourth shielding structure portion 39 have different light shielding properties, and the ninth transparent material portion 40 is a transparent material having a certain refractive index.

The shadow feature of the structure 8 shadow texture element 22 is similar to the structure 7 shadow texture element 22, setting a third Description

The two portions of the occluding structure portion 41 and the fourth occluding structure portion 39 are different in material, and the shadow texel element 22 relative to the structure 7 can further increase the impossibility of the morphological element 22 being imitated.

The random feature S can acquire the coordinates of the two end points in the longitudinal direction of any of the occluding structure portions of the third occluding structure portion 41 and the fourth occluding structure portion 39 on Fig. 24b.

Structure 9 (see Figures 25a, 25b): The shadow texture element 22 is flat, the flat surface of the shadow texture element 22 being parallel or approximately parallel to the surface of the texture material 2, the shadow texture element 22 being along its front and rear direction The tenth transparent material portion 45, the fifth shielding structure portion 44, the eleventh transparent material portion 43, the sixth shielding structure portion 42, and the twelfth transparent material portion 46, which are sequentially extended in the left-right direction, are composed of five material portions, The area of the eleventh transparent material portion 43 in the cross section of the shadow texture element 22 is more than twice the area of the tenth transparent material portion 45, and the area of the eleventh transparent material portion 43 is the twelfth transparent material. More than twice the area of the portion 46, the cross sections of the fifth occluding structure portion ₄₄ and the sixth occluding structure portion 42 are both rectangular or approximately rectangular, and the long sides of the rectangular or approximately rectangular shape are perpendicular to the surface of the texture material 2. The fifth shielding structure portion 44 and the sixth shielding structure portion 42 have different light shielding properties, and the tenth transparent material portion 45 and the eleventh transparent material portion 43 and the twelfth transparent material portion 46 is a transparent material having a certain refractive index.

The shadow feature of the structure 9 shadow texture element 22 is similar to the structure 8 shadow texture element 22, and the added tenth transparent material portion 45 and the twelfth transparent material portion 46 function to cause the structure 9 shadow texture element 22 to be more easily flattened. Placed on the surface of the textured material 2.

Structure 10: The shadow texture element 22 is a flat cylinder, and the cross section of the flat cylinder is composed of a thirteenth transparent material portion 48 located at a central portion and two material portions of a seventh occlusion structure portion 47 located at the periphery, The seventh blocking structure portion 47 on the longitudinal section of the flat cylinder is at least one rectangle having a long side perpendicular to the surface of the texture material 2, and the thirteenth transparent material portion 48 is a transparent material having a certain refractive index; The flat cylinder may be a flat cylinder as shown in FIGS. 26a, 26b, and 26d, wherein the seventh occluding portion 47 of the periphery of the flat cylinder of 26d is a non-closed ring; the flat cylinder may also be as shown in the figure. The flat prism shown in 26c, in particular the flat quadrangular prism; of course, other flat cylinders.

Structure 11 (see Figures 27a, 27b): The shadow texel 22 is a flat cylinder having a cross section of a fourteenth transparent material portion 51 at the central portion and an eighth occlusion at the same periphery and opposite The structural portion 50 and the ninth occlusion structure portion 49 are composed of three material portions, and the eighth occlusion structure portion 50 and the ninth occlusion structure portion 49 on the longitudinal section of the flat cylinder are both rectangular, and the long sides of the rectangle are vertical On the surface of the texture material 2, the eighth shielding structure portion 50 and the ninth shielding structure portion 49 have different light shielding properties, and the fourteenth transparent material portion 51 is a transparent material having a certain refractive index.

The eighth occlusion structure portion 50 and the ninth occlusion structure portion 49 of the structure 11 shadow texel 22 are of different materials, together forming a closed loop, as shown in Fig. 27b, the endpoint coordinates of the joint points of the two portions As a random feature 3.

The pattern of the shadow optical features of the annular occlusion structure is simple.

The shaded occlusion structure may be a black occlusion material and/or a titanium dioxide occlusion material and/or a vacuum coating occlusion material and/or a colored occlusion material.

The material selection of the shielding structure has its own advantages. The black shielding material can completely block the spectral bands of the illumination source; the white titanium dioxide shielding material is white, and the spectral bands of the illumination source can be completely blocked; the vacuum coating blocks the material. The occlusion layer can be completely occluded when it is thin, for example, the vacuum aluminized layer lOOum can completely block the formation of shadows. Instruction manual

This is more conducive to the miniaturization of the shadow texture element 22; the shadow formed by the colored occlusion material can be colored.

The identification feature J is a different optical feature presented by the texel 1 and the difference in the optical features can be recognized by the recognition system.

Wherein, the difference in optical characteristics of the texel 1 is formed by illuminating the texel 1 with different illumination angles set.

Wherein the optical feature is a geometric optical feature. The geometrical optical characteristic refers to an optical characteristic formed by the particle properties of a wave under illumination of a light source.

Wherein, the optical characteristic is a shadow formed by the light source illuminating the texel 1. The formation of the shadow is due to occlusion, which may be the occlusion of part of the spectrum or partial intensity, as long as the recognition system is able to perceive such occluded and unoccluded differences, such as blocking the amount of incident light intensity by 70%. For example, blocking part of the frequency band in the incident spectrum.

Wherein the optical characteristic is a spectral feature.

Further, the spectral characteristic is a colored spectral characteristic exhibited by the texel 1 under the condition of reflected light or/and a spectral characteristic exhibited by the illuminating light of the texel 1 under the condition of the excitation light.

Wherein the texel 1 optical feature is a spectral feature and/or an interference light pattern exhibited by the texel 1 under interference conditions, for example, selecting a crystal having a significant interference effect, such as selecting a particle containing a Newtonian ring interference feature; or a spectral feature and/or a diffracted light pattern presented under conditions; or the texel 1 optical feature is a spectral feature and/or a polarized light pattern exhibited by texel 1 under polarized conditions; or the texel 1 optical feature is a texture a spectral characteristic and/or a dispersive light pattern exhibited by element 1 under dispersive conditions; or a difference in optical characteristics of said texel 1 is due to a change in spectral characteristics of the illumination source; or the difference in optical characteristics of said texel 1 is Formed by a change in intensity of the illumination source; or the difference in optical characteristics of the texel 1 is due to illumination source illuminating the texel 1 at least at an angle to produce total reflection.

Wherein the optical characteristic is light intensity.

As shown in Figures 31a, 31b, 32, the random feature S is the position of the texel 1 and/or the orientation of the texel 1 parallel to the surface of the texture material 2 and/or the texel 1 is perpendicular to the surface of the texture material 2. The spectral features of the orientation and/or texture element 1 and/or the geometry of the texture element 1 and/or the geometry of the texture element 1 are rotated.

If the random feature S collected on a texel 1 is more, the smaller the texture and the higher the accuracy of the acquired random feature S, the greater the cost of placing the random feature S of the individual texel 1 of the counterfeiter. The random feature S of the rotation orientation shown in Fig. 32 is very difficult to place.

As shown in Fig. 33, the number of texels 1 in the anti-counterfeit mark 3 is greater than N.

The purpose of this design is that since the distribution of texels is random, the sampling area may appear blank, or there is only 1 texel 1, or only 2 texels 1, or only a few texels 1, these distribution states are Possibly, only the probability of occurrence is different. The harm of too few texels 1 is that the counterfeiters will not have too high cost if they use manual placement, which will affect the anti-counterfeiting effect. For example, only one appears. In the case of texture element 1, the counterfeiter only needs to put one texel 1 on it to make the recognition system identify as true and confuse, and it can repeat this anti-counterfeit mark with only one texel in a large amount. Therefore, it is necessary to eliminate the anti-counterfeit identification of these small number of texels 1 (for example, no less than 20 texels 1 on the anti-counterfeit mark, the minimum limit number N is an economic problem, if the added value of the anti-counterfeit product is high, the N value should be larger, The added value is low, and the N value can be smaller).

The random feature S is stored in a manner that the random feature S is encrypted and converted into a code and printed on the anti-counterfeit tag 3. Instruction manual

The purpose of such a design is to encode (for example, a two-dimensional code) information of the random feature S of the texel 1 and various basic information, an encryption code, a key, etc., the two-dimensional code itself has a certain storage capacity, random The information of the feature s is directly stored on the two-dimensional code of the anti-counterfeit mark. The advantage of the design is that the identification system does not need to retrieve the data when the system is recognized. The possible hidden danger is that if the encryption method is leaked or deciphered by the counterfeiter, the counterfeiter It can be forged in batches; each anti-counterfeit logo is costly to produce, and the identifier is also costly.

The random feature S is stored in such a manner that the random feature S is stored in a database.

Further, the random feature S is stored in a manner that the random feature S distributed on the anti-counterfeit identifier 3 is directly stored in the database. The purpose of this design is that since the random feature S of the distribution of the texel 1 can easily have more than 10 ^2Q combinations, the probability of repetition is negligible; even if a small number of repetitions are generated during the implementation, for example, one hundred million repetitions Probability, there is no value that can be utilized by the counterfeiter. The advantage is that printing without coding on the anti-counterfeit mark is required, the manufacturing cost of the anti-counterfeit mark can be reduced, the size and cost of the recognizer are also reduced, and the elimination is also eliminated. Misjudgment due to misreading of the code.

Further, the random feature S is stored in the manner that the anti-counterfeit tag 3 is numbered and printed on the anti-counterfeit tag 3, and the number is stored in the database together with the random feature S of the corresponding anti-counterfeit tag 3.

The random feature S is stored by encrypting the random feature S, converting it into a code and printing it on the anti-counterfeit tag 3, and storing the random feature S in the database. The purpose of this design is that the entire anti-counterfeiting system will be more reliable.

As shown in FIG. 34, the code or number overlap is printed in the texel 1 acquisition area of the anti-counterfeit mark 3, which is the texel 1 distribution extracted in the texture material 2 and stored in the recognition system. Area. The purpose of this design is to reduce the area of the anti-counterfeit mark, and the identifier can be more simplified, especially the size of the recognizer can be reduced, which creates conditions for the integration of the identification system and the mobile phone.

Further, with the same excitation light source, there is a significant difference in the spectral characteristics of the emitted light of the two-dimensional code printing ink and the texture element 1, so that the recognizer can distinguish these differences. For example: Texture element 1 is a fiber containing the same red, fluorescent blue, and fluorescent yellow color spectrum of the same excitation source. The two-dimensional code is printed with the same excitation source fluorescent infrared ink, and the recognition system can distinguish the difference of these color spectra.

Further, different excitation light sources, the printing ink selected by the two-dimensional code and the luminescent material contained in the texel 1 have different excitation spectra, for example: the texture element 1 contains a 365 nm excitation spectrum luminescent material, and the two-dimensional code printing ink is another A luminescent material that excites the excitation of the spectrum.

As shown in FIG. 35, the collection area on the anti-counterfeit mark 3 includes a plurality of collection sub-areas 62. When the identification system recognizes, only one of the collection sub-areas 62 is extracted, and the collection area is extracted in the texture material 2 and The area in which the texture element 1 stored in the recognition system is distributed.

As shown in Fig. 37, the recognition-time recognition system extracts an arbitrary portion of the acquisition area, which is an area in which the texture element 2 is extracted and distributed in the recognition system.

The purpose of this design is to greatly reduce the size of the identifier, especially when the profit of the counterfeit product is high, because the identifier specifically selects which of the multiple regions to identify is random, the counterfeiter must counterfeit. All of the multiple areas, such that the collection area is large will not change the cost of the identifier.

Further, when recognizing, the identifier can be identified as long as the collection area 63 of the identifier is placed in the entire anti-counterfeiting identification area, which is more convenient and more random.

As shown in FIG. 36, a mark line 65 is printed on the collection area of the anti-counterfeit mark 3. Instruction manual

The mark line 65 in the anti-counterfeit mark 3 can guide the comparison of the random features S' more quickly, reducing the storage amount of the database. The random feature S in the collection area on the anti-counterfeit identifier 3 extracts the random feature S of the partial texture element 1 in the collection area. The purpose of this design is that since the counterfeiter cannot know which texels 1 are selected by any part of the identifier, the counterfeiter must completely and accurately copy the random features S of all the texels 1 in the acquisition area, and select only the texels 1 The amount of storage can be reduced, and the calculation processing time can be reduced, especially when the random feature S is stored in a two-dimensional code manner.

Further, when identifying, the random feature S' of the partial texture element 1 is selected in the identifier sampling area to store the random feature S comparison. The purpose of this design is that, due to information asymmetry, it is impossible for the counterfeiter to know which part of the texel 1 in the selected acquisition area is specific, so it is impossible to manually place only these few texels 1 and must do so. Fully placed.

Further, when there are multiple random features S on each texel 1, only a part of the random features S are randomly selected for comparison during storage or recognition. For example, when the texel 1 is a photochromic fiber, the coordinates of any point are selected on one fiber, for example, one of the two ends of the fiber, the middle point of the fiber, and any point from the fiber length of one end. Although only a small amount of coordinates are sampled, a large amount of storage space is saved, but since the counterfeiter does not know exactly which point on the fiber, it must accurately position the shape, shape, and orientation of the entire fiber.

Further, the error tolerance is set for the comparison of the random texture features, for example, by comparing 100 random features S', and only 60% of the requirements are considered valid. The purpose of this design is that when the surface of the anti-counterfeit label is contaminated, worn, and the identifier only extracts the random feature S' information of the partial texture element 1' in the sampling area, the determination is still valid, and the counterfeiter is not lowered. Copy the threshold.

The identification system includes a recognizer and a storage database, the recognizer picks up the image and transmits it directly to the storage database, and the extraction of the stochastic feature S' to be identified is completed in the storage database.

This way the recognizer is further simplified, and when the texture element 1 changes, it is easy to adapt to it without changing the recognizer.

The identification system includes an identifier and a storage database, the recognizer picks up the image and directly transfers it to the storage database, and the feature J' and the identification feature J are compared in the storage database.

The texel 1 has a geometric size of no more than 150 um. The geometric dimension is the length direction of the texel 1, in particular the dimension of the longest dimension.

As shown in FIG. 38, the identifier includes an illumination source, and an illumination direction of the illumination source is randomly set in the identifier, and the identification feature J stored in the identification system includes a light source to illuminate the texture from various directions. Optical characteristics of element 1.

For example, only one angle of the illumination source is installed in the identifier, but in the identifier provided to the identifier, the illumination angle of the single source has many specifications, so that there are many possibilities for the illumination angle of the light source of the identifier to be held by the different identifiers, for example. There are 36 kinds of specifications, that is, the illumination angle of the light source in the recognizer facing the counterfeiter is random, and the orientation of the identifier relative to the anti-counterfeit mark may also be random when the recognizer recognizes, and the counterfeiter cannot predict, so the counterfeiter wants It is a small probability event to use the printed texture element to mimic the optical characteristics of a specific angle texel 1 to achieve recognition by the recognizer. This design can further simplify the recognizer and make image processing more convenient.

As shown in FIG. 39, the identifier includes two illumination sources, and the two illumination sources have different illumination angles. Instruction manual

The identification feature stored in the identification system contains optical features that illuminate the texel 1 from various directions.

As shown in FIG. 40, the identifier includes three illumination light sources, the three illumination light sources have different illumination angles, and the identification feature stored in the identification system includes a light source that illuminates the texture element 1 from various directions. Optical characteristics.

As shown in FIG. 41, the identifier is disposed on the mobile phone and integrated with the mobile phone as a whole.

The recognizer is a voice answering method.

Taking the fluorescent light angle color changing texture element 6 as an example (see Fig. 2-10), the random texture anti-counterfeiting method provided by the present invention includes the following steps:

A, selecting a texture material randomly distributed with a fluorescent light angle color changing tex element 6;

B. The recognition system stores an identification feature J inherent to the fluorescent light angle color changing texture element 6, the inherent identification feature J being respectively presented when the excitation light source illuminates the fluorescent light angle color changing texture element 6 from the set different angles A and B. Different spectral characteristics;

C. The identification system extracts in the acquisition area and stores the random feature S of the distribution of the fluorescent light-angle color-changing texture element 6 in the recognition system, so that the texture material 2 becomes the anti-counterfeit mark 3, and the random feature of the distribution of the fluorescent light-angle color-changing texture element 6 S is the two end point coordinates of the fluorescent light angle color changing tex element 6, in particular, when the fluorescent light angle color changing texture element 6 is the structure shown in FIGS. 7-9, the random characteristic S except the fluorescent light angle color changing texture element The outer end coordinates of 6 also include the rotational orientation of the fiber cross section (see Fig. 32); the collection area may be a checkered area, that is, a large square is printed on the textured material 2, and the large square is marked by the standard The bit line divides a plurality of small squares, as shown in FIG. 36;

The area of the sampling area 63 of the identifier is much smaller than the area of the large square;

D. When identifying, the recognition system extracts the feature J′ and the random feature S′ of the texture element to be identified on the anti-counterfeit identifier 3′ to be identified, and compares the feature J′ with the recognition feature J and the random feature S′ and the random feature S, respectively. If there is two or one mismatch in the comparison result, it is determined that the anti-counterfeit identification 3' to be identified is not the anti-counterfeit identification 3. If the two items are consistent, it is determined that the anti-counterfeiting identification 3' to be identified is the anti-counterfeiting identification 3. In the specific identification, when it is determined that the anti-counterfeit identification 3' to be identified is the anti-counterfeit identification 3, the product that informs the identifier that the anti-counterfeiting identification 3' is present is genuine; when it is determined that the anti-counterfeiting identification 3' to be identified is not the anti-counterfeiting identification 3 The product that informs the identifier that the anti-counterfeiting mark 3' is a counterfeit product.

The specific identification process is shown in Figure 1. Taking the interference film texture element 12 as an example (see Figs. 11, 12), the random texture anti-counterfeiting method provided by the present invention includes the following steps:

The steps included therein are substantially the same as the steps of the random texture anti-counterfeiting method of the above-described fluorescent light angle color changing texture element 6, except that the interference film texture element 12 is in the form of a sheet (see FIG. 11), and the identification feature J is The multi-layer interference film 14 of the two color-changing categories is simultaneously distributed on the texture material 2, for example: when the sheet shape is a square, the light source A is irradiated with the interference film texture element 12 perpendicular to the surface direction of the texture material 2 to appear red. The light source B is inclined to the surface of the texture material 2 to illuminate the interference film texture element 12 to exhibit a blue color; when the sheet shape is a triangle, the light source A is irradiated with the interference film texture element 12 perpendicular to the surface direction of the texture material 2 to appear yellow. The light source B is oblique to the surface direction of the texture material 2 to illuminate the interference film texture element 12 to appear blue.

When the interference film texture element 12 is a triangular sheet shape, the random characteristic S of the distribution is any two vertices of the triangle; when the interference film texture element 12 is a square sheet, the random characteristic S of the distribution is square diagonal Two endpoints. Taking the shadow texture element 22 as an example (see FIGS. 17-27, and 28-28), the random texture prevention provided by the present invention Description

The pseudo method includes the following steps:

The steps included therein are substantially the same as the steps of the random texture anti-counterfeiting method of the fluorescent light-angle color-changing texture element 6 described above, except that the identification feature J of the shadow texture element 22 is that three shade patterns are taken, and the light source illuminates the light from the A direction. The shadow texture element 22 presents a first shadow pattern, and the light source illuminates the shadow texture element 22 from the B direction to present a second shadow pattern. The light source simultaneously illuminates the shadow texture element 22 from the two directions A and B. Three shaded patterns, the differences of which form the identification feature J; the random features S of the shadow texture element 22 have been specifically described above.

Claims

Claim

1. A random texture anti-counterfeiting method, comprising the following steps:

A. Select a texture material with a random distribution of texels (1) (2);

B, the identification system stores the texture elements (1) inherent identification features J;

C, extracting and storing the random feature S of the distribution of the texel (1) in the recognition system, so that the texture material (2) becomes the anti-counterfeit mark 3;

D. When identifying, the recognition system extracts the feature J′ and the random feature S′ of the texture element to be identified on the anti-counterfeit identification (3′) to be identified, and the feature J′ and the recognition feature J and the random feature S′ and the random feature S If the comparison results have two or one mismatches, it is determined that the anti-counterfeit identification (3 ') to be identified is not the anti-counterfeiting identification (3), and if the two items are consistent, the anti-counterfeiting identification to be identified is determined (3) ' ) is the anti-counterfeit mark (3).

2. The anti-counterfeiting method for random texture according to claim 1, wherein the texel (1) is a texel whose printed texel cannot imitate its recognition feature.

3. The anti-counterfeiting method for random texture according to claim 2, wherein the texel (1) is a texel in which the texel cannot be imitated by the identifiable feature J under the condition of the recognition system.

The anti-counterfeiting method for random texture according to any one of claims 1 to 3, wherein the texel (1) is a light angle variation texel (4), when the light source is different from the setting When the illumination angle illuminates the light angle varying texture element (4), the light angle variation texture element (4) exhibits different optical characteristics, the difference of which can be recognized by the recognition system.

5 . The anti-counterfeiting method for random texture according to claim 1 , wherein the texel (1 ) is a light-angle color-changing tempering element (5), when the light source is irradiated from different illumination angles set When the light angle color changing texture element (5) is described, the light angle color changing texture element (5) exhibits different spectral features, and the difference in the spectral characteristics can be recognized by the recognition system.

The anti-counterfeiting method for random texture according to claim 1, wherein the texel (1) is a fluorescent light-angle color-changing tempering element (6), when the excitation light source is set from different illumination angles. When the fluorescent light angle color changing tex element (6) is irradiated, the fluorescent light angle color changing texture element (6) exhibits different spectral features, and the difference in the spectral characteristics can be recognized by the recognition system.

The random texture anti-counterfeiting method according to claim 6, wherein the fluorescent light angle color changing texture element (6) is a fiber, and the cross section of the fiber is composed of a first light emitting material portion (7) And the barrier material portion (8) is composed of two material portions, and the barrier material portion (8) is a barrier material capable of blocking the excitation light of the first luminescent material portion (7), the fiber comprising the following structure:

Structure 1 : The median plane of the fiber is curved, and the median surface is composed of a vertical line (69) of each cross section of the fiber, the fiber has a circular cross section, and the first luminescent material portion (7) ) distributed on one side of the median plane; or

Structure 2: the fiber is flat, the median plane of the fiber is curved, and the median surface is composed of a short axis perpendicular line (69) of each cross section of the fiber, the first luminescent material portion ( 7) distributed on one side of the median plane; or

Structure 3: the fiber is a flat linear fiber, and the first luminescent material portion (7) is distributed on one side of the mid-vertical surface, and the vertical plane is a short axis perpendicular to each cross section of the fiber ( 69) Composition.

The anti-counterfeiting method for random texture according to claim 6, wherein the fluorescent light angle color changing texture element (6) is a curved fiber, and the fiber has a circular cross section, the cross section The first luminescent material portion (7) and the second luminescent material portion (9) are composed of two material portions, the first luminescent material portion (7) and the second luminescent material portion

The emitted light of (9) exhibits different spectral characteristics, the median plane of the fiber is curved, and the median plane is cross-sectioned by the fibers Claim

The mid-perpendicular line (69) of the face is configured such that the first luminescent material portion (7) and the second luminescent material portion (9) are symmetrically distributed on both sides of the mid-vertical surface.

The anti-counterfeiting method for random texture according to claim 6, wherein the fluorescent light-angle color-changing texture element (6) is a fiber, and the cross-section of the fiber is made up of a first luminescent material portion (7) The barrier material portion (8) and the second luminescent material portion (9) are composed of three material portions, and the emitted light of the first luminescent material portion (7) and the second luminescent material portion (9) exhibit different spectral characteristics, the barrier material Part (8) is a barrier material capable of blocking excitation light of the first luminescent material portion (7) and the second luminescent material portion (9), and the barrier material portion (8) is distributed in the first luminescent material portion (7) and the second portion Between the luminescent material portions (9), the fibers comprise the following structure:

Structure 1 : The median plane of the fiber is curved, and the median surface is composed of a vertical line (69) of each cross section of the fiber, the fiber has a circular cross section, and the first luminescent material portion (7) And the second luminescent material portion (9) symmetrically distributes both sides of the mid-vertical surface; or

Structure 2: The fiber is flat, the median plane of the fiber is curved, and the median surface is composed of a short axis and a vertical line (69) of each cross section of the fiber, and the first luminescent material portion (7) Symmetrically distributing the two sides of the mid-vertical surface with the second luminescent material portion (9); or

Structure 3: the fiber is a flat linear fiber, and the first luminescent material portion (7) and the second luminescent material portion (9) are symmetrically distributed on both sides of the median surface, and the median surface is horizontally distributed by the fibers The short axis of the section is composed of a vertical line (69).

The anti-counterfeiting method for random texture according to claim 6, wherein the fluorescent light angle color changing texture element (6) is a fiber, and the fluorescent light angle color changing texture element (6) is at least The first luminescent material portion (7), the second luminescent material portion (9) and the third luminescent material portion (10), which are distributed in the cross section of the fiber and which extend along the length direction of the fiber, are composed of three material portions, The emitted light of the at least three luminescent material portions exhibit different spectral characteristics, and the geometrical distribution of the at least three illuminating material portions is specially designed to enable the fibers to have at least two different excitation light irradiation angles. When the fluorescent light angle color changing texture element (6) is described, different spectral characteristics can be exhibited, and the fiber comprises the following structure:

Structure 1: The fiber has a circular cross section, and the cross section is provided with a first luminescent material portion (7), a second luminescent material portion (9) and a third luminescent material portion with different spectral characteristics of emitted light ( 10), the three luminescent material portions are fan-shaped structures adjacent to each other; or

Structure 2: The fiber has a circular cross section, and the cross section is provided with three different luminescent material portions (7), a second luminescent material portion (9), and a third luminescent material portion. (10) and a barrier material portion (8), the barrier material portion (8) being spaced between the three luminescent material portions; or

Structure 3: The fiber has a circular cross section, and the cross section is provided with a first luminescent material portion (7), a second luminescent material portion (9), and a third luminescent material portion with different spectral characteristics of emitted light ( 10) and a fourth luminescent material portion (11), the four luminescent material portions being sector-shaped structures adjacent to each other.

The anti-counterfeiting method for random texture according to claim 6, wherein the texture material (2) is distributed with a fluorescent light-angle color-changing texture element (6), and the fluorescent light-angle color-changing texture element ( 6) at least a first luminescent material portion (7) and a barrier material portion (8) are distributed in a cross section, and the fluorescent light anamorphic templating element (6) is structurally designed to ensure that when the excitation light source is perpendicular to the texture material (2) When the surface is irradiated, the barrier material portion (8) can block the excitation light from being irradiated onto the first luminescent material portion (7), and when the excitation light source is inclined or parallel to the surface of the texture material (2), the excitation light source can illuminate A luminescent material portion (7).

12. The method of anti-counterfeiting of a random texture according to claim 1, wherein the texture element (1) Claim

For the interference film texture element (12) containing the multilayer interference film (14), there are at least two different illumination angles, and when the interference film texture element (12) is irradiated, different spectral characteristics of the emitted light can be exhibited, the spectral features The difference can be identified by the identification system, the interference film texture element (12) comprising the following structure:

Structure 1 : the interference film texture element (12) is in the form of a sheet, wherein the multilayer interference film (14) is parallel to the surface of the texture material (2); or

Structure 2: The interference film texture element (12) is composed of the multilayer interference film (14) and the carrier (15), the multilayer interference film (14) is perpendicular to the surface of the texture material (2), and the carrier (15) The support multilayer interference film (14) is perpendicular to the surface of the texture material (2).

The anti-counterfeiting method for random texture according to claim 1, wherein the texel (1) is a colored light-angle color-changing tempering element (16), and different illumination angle light sources illuminate the colored light angle When the texel element (16) is discolored, different reflected light spectral features are presented, the differences in which can be recognized by the recognition system.

The anti-counterfeiting method for random texture according to claim 13, wherein the colored light-angle color-changing texture element (16) is a fiber, and comprises the following structure:

Structure 1 : The median plane of the fiber is curved, the median plane is composed of a vertical line of each cross section of the fiber, the fiber cross section is circular, and the fiber cross section is composed of a spacer material portion (17) And the first colored material portion (18) is composed of two material portions, the spacer material portion (17) is capable of blocking the illumination light, and the first colored material portion (18) is distributed on one side of the mid-vertical surface; or

Structure 2: The fiber is flat, the median plane of the fiber is curved, and the median surface is composed of a perpendicular line (69) of each cross section of the fiber, and the fiber cross section is composed of a spacer material portion ( 17) and the first colored material portion (18) is composed of two material portions, the spacer material portion (17) can block the illumination light, and the first colored material portion (18) is distributed on one side of the mid-vertical surface; or

Structure 3: The fiber is a flat linear fiber, and the fiber cross section is composed of a spacer material portion (17) and a first colored material portion (18), and the spacer material portion (17) can block the illumination light. The first colored material portion (18) is distributed on one side of the mid-vertical surface; or

Structure 4: The median plane of the fiber is curved, the median plane is composed of a vertical line of each cross section of the fiber, the fiber has a circular cross section, and the cross section is composed of a first colored material portion (18), the second colored material portion (19) and the spacer material portion (Π) are composed of three material portions, and the first colored material portion (18) and the second colored material portion (19) exhibit different spectral characteristics, and the spacer material The portion (17) is capable of blocking the illumination light, and the spacer material portion (17) is distributed between the first colored material portion (18) and the second colored material portion (19), the first colored material portion (18) and the second colored material. Part (19) is distributed on both sides of the median plane; or

Structure 5: The fiber is flat, the median plane of the fiber is curved, and the median surface is composed of a vertical line (69) of each cross section of the fiber, and the fiber cross section is composed of a first colored material The portion (18), the second colored material portion (19) and the spacer material portion (17) are composed of three material portions, and the first colored material portion (18) and the second colored material portion (19) exhibit different spectral characteristics, spacing The material portion (17) is capable of blocking the illumination light, and the spacer material portion (17) is distributed between the first colored material portion (18) and the second colored material portion (19), the first colored material portion (18) and the second colored portion. The material portion (19) is distributed on two sides of the median plane; or

Structure 6: the fiber is a flat linear fiber, and the fiber cross-section is composed of a first colored material portion (18), a second colored material portion (19) and a spacer material portion (17), the first material portion, first The colored material portion (18) and the second colored material portion (19) exhibit different spectral characteristics, and the spacer material portion (17) can block the illumination light, the spacer material Claim

The material portion (17) is distributed between the first colored material portion (18) and the second colored material portion (19), and the first colored material portion (18) and the second colored material portion (19) are distributed in the vertical plane Two sides; or

Structure 7: at least a first colored material portion (18), a second colored material portion (19) and a third colored material portion (20) are distributed on the fiber cross section, and the at least three colored materials portions are different Spectral features, the geometrical distribution of the geometrical distribution of the at least three colored materials enables the fibers to have at least two different illumination light illumination angles, and when the fibers are irradiated, the reflected light energy exhibits different spectral characteristics. The fiber contains the following structure:

Structure 7-1: The fiber has a circular cross section, and the first cross section is provided with three different colored material portions (18), a second colored material portion (19), and a third colored portion. a material portion (20) and a spacer material portion (17), the spacer material portion (17) being spaced apart between the three colored material portions; or

Structure 7-2: The fiber has a circular cross section, and the first cross section of the fiber is distributed with four different colored material portions (18), a second colored material portion (19), and a third A colored material portion (20), a fourth colored material portion (21) and a spacer material portion (17) are spaced apart between the four colored material portions.

The anti-counterfeiting method for random texture according to claim 1, wherein the texture element (1) is a shadow texture element (22), and the shadow texture element (22) comprises a shadow. The occlusion structure, when illuminating the shadow texture element (22) from different illumination angles set, the occlusion structure can form different shadows, the difference of the shadows being recognized by the recognition system.

The anti-counterfeiting method for random texture according to claim 15, wherein the shadow texture element (22) comprises the following structure:

Structure 1: The shadow texture element (22) is a long stripe texture element (23), the long stripe texture element (23) has a rectangular cross section, and the long side of the rectangle is perpendicular to the surface of the texture material (2) The mid-vertical plane of the shadow texture element (22) is curved by a vertical line of each cross-section of the shadow texture element (22) perpendicular to the surface of the texture material (2); or

Structure 2: The shadow texture element (22) is a spherical texture element (24); or

Structure 3: The shadow texture element (22) is flat, the flat surface of the shadow texture element (22) being parallel or approximately parallel to the surface of the texture material (2), the shadow texture element (22) being along its length The shielding structure portion (25), the first transparent material portion (26) and the second transparent material portion (27) extending in parallel in the direction are composed of three material portions, and the shielding structure portion (25) is located in the first transparent material portion Between (26) and the second transparent material portion (27), the occluding structure portion (25) has a rectangular or nearly rectangular cross section, and the long side of the rectangular or approximately rectangular shape is perpendicular to the texture material (2) The surface of the first transparent material portion (26) and the second transparent material portion (27) have different refractive indices; or

Structure 4: the shadow texture element (22) is flat, and the flat surface of the shadow texture element (22) is perpendicular or approximately perpendicular to the surface of the texture material (2), in the middle of the shadow texture element (22) The vertical plane is formed by a vertical line of the cross-section of the shadow texture element (22) perpendicular to the surface of the texture material (2), the shadow texture element (22) being along its length The blocking structure portion (28), the third transparent material portion (29) and the fourth transparent material portion (30) extending in parallel form three material portions, and the shielding structure portion (28) is located in the third transparent material portion Between (29) and the fourth transparent material portion (30), the occluding structure portion (28) has a rectangular or nearly rectangular cross section, and the long side of the rectangular or approximately rectangular shape is perpendicular to the texture material (2) Surface; or

Structure 5: the shadow texture element (22) is flat, and the flat surface of the shadow texture element (22) is parallel or Claim

A surface parallel to the texture material (2), the shadow texture element (22) consists of a fifth transparent material portion (32) and an occlusion structure portion (31) which are parallelly extending in the front-rear direction, and are disposed in the left-right direction. The occlusion structure portion (31) has a rectangular or nearly rectangular cross section, the long side of the rectangular or approximately rectangular shape is perpendicular to the surface of the texture material (2), and the fifth transparent material portion (32) has a certain refraction. Rate of transparent material; or

Structure 6: The shadow texture element (22) is a flat shape, the flat surface of the shadow texture element (22) being parallel or approximately parallel to the surface of the texture material (2), the cross section of the shadow texture element (22) Distributing three material portions of the shielding structure portion (33), the sixth transparent material portion (34) and the seventh transparent material portion (35), the shielding structure portion (33) being located in the sixth transparent material portion (34) and Between the seven transparent material portions (35), the occlusion structure portion (33) on the cross section of the shadow structuring element (22) is rectangular or approximately rectangular, and the long side of the rectangular or approximately rectangular shape is perpendicular to the texture material. The surface of (2), the sixth transparent material portion (34) and the seventh transparent material portion (35) are transparent materials having a certain refractive index, and the sixth transparent material portion on the cross section of the shadow texture element (22) The area of (34) is more than twice the area of the seventh transparent material portion (35); or

Structure 7: The shadow texture element (22) is flat, the flat surface of the shadow texture element (22) being parallel or approximately parallel to the surface of the texture material (2), the shadow texture element (22) being followed by The first shielding structure portion (38), the eighth transparent material portion (37) and the second shielding structure portion (36), which are distributed in parallel and distributed in the left-right direction, are composed of three material portions, and the first shielding structure portion (38) And the second shielding structure portion (36) is symmetrically distributed on the left and right sides of the eighth transparent material portion (37), and the cross section of the first shielding structure portion (38) and the second shielding structure portion (36) All are rectangular or approximately rectangular, the long side of the rectangular or approximately rectangular shape is perpendicular to the surface of the texture material (2), and the first occlusion structure portion (38) and the second occlusion structure portion (36) have the same shading characteristics. The eighth transparent material portion (37) is a transparent material having a certain refractive index; or

Structure 8: The shadow texture element (22) is flat, the flat surface of the shadow texture element (22) being parallel or approximately parallel to the surface of the texture material (2), the shadow texture element (22) being followed by The third shielding structure portion (41), the ninth transparent material portion (40) and the fourth shielding structure portion (39), which are distributed in parallel and distributed in the left-right direction, are composed of three material portions, and the third shielding structure portion (41) And the fourth shielding structure portion (39) are symmetrically distributed on the left and right sides of the ninth transparent material portion (40), and the cross sections of the third shielding structure portion (41) and the fourth shielding structure portion (39) All of them are rectangular or approximately rectangular, the long sides of the rectangular or approximately rectangular shape are perpendicular to the surface of the texture material (2), and the third shielding structure portion (41) and the fourth shielding structure portion (39) have different light shielding properties. The ninth transparent material portion (40) is a transparent material having a certain refractive index; or

Structure 9: The shadow texture element (22) is flat, the flat surface of the shadow texture element (22) being parallel or approximately parallel to the surface of the texture material (2), the shadow texture element (22) being followed by a tenth transparent material portion (45), a fifth occlusion structure portion (44), an eleventh transparent material portion (43), a sixth occlusion structure portion (42), and a twelfth transparent layer which are sequentially arranged in parallel and arranged in the left-right direction The material portion (46) is composed of five material portions, and the area of the eleventh transparent material portion (43) in the cross section of the shadow texture element (22) is more than twice the area of the tenth transparent material portion (45) And the area of the eleventh transparent material portion (43) is more than twice the area of the twelfth transparent material portion (46), and the fifth occlusion structure portion (44) and the sixth occlusion structure portion (42) The cross section is rectangular or approximately rectangular, the long side of the rectangular or approximately rectangular shape is perpendicular to the surface of the texture material (2), and the fifth occlusion structure portion ( ₄₄ ) and the sixth occlusion structure portion (42) have different cover Characteristic, the tenth transparent material portion (45), the eleventh transparent material portion (43) and the twelfth transparent material portion (46) are transparent materials having a certain refractive index; or the structure 10: shadow texture elements (22 Is a flat cylinder, the cross section of the flat cylinder is from the central portion Claim

The thirteen transparent material portion (48) and the seventh shielding structure portion (47) at the periphery are composed of two material portions, and the seventh shielding structure portion (47) on the longitudinal section of the flat cylinder is at least one rectangular shape. The long side of the rectangle is perpendicular to the surface of the texture material (2), and the thirteenth transparent material portion (48) is a transparent material having a certain refractive index; or

Structure 11: The shadow texture element (22) is a flat cylinder having a cross section of a fourteenth transparent material portion (51) at a central portion and an eighth occlusion structure portion at the same periphery and opposite to each other ( 50) and the ninth occlusion structure portion (49) is composed of three material portions, and the eighth occlusion structure portion (50) and the ninth occlusion structure portion (49) on the longitudinal section of the flat cylinder are both rectangular, The long side of the rectangle is perpendicular to the surface of the texture material (2), and the eighth occlusion structure portion (50) and the ninth occlusion structure portion (49) have different light shielding properties, and the fourteenth transparent material portion (51) It is a transparent material with a certain refractive index.

The random texture anti-counterfeiting method according to claim 15, wherein the shaded occlusion structure is made of a black occlusion material and/or a titanium dioxide occlusion material and/or a vacuum coating occlusion material and/or Colored blocking material.

18. The random texture anti-counterfeiting method according to claim 1, wherein the identification feature is a different optical feature presented by the texel (1), and the difference of the optical features can be recognized by the recognition system.

19. A random texture anti-counterfeiting method according to claim 18, wherein the difference in optical characteristics of the texel (1) is formed by illuminating the texel (1) with different illumination angles set.

20. A random texture anti-counterfeiting method according to claim 18, said optical feature being a geometric optical feature.

21. A random texture anti-counterfeiting method according to claim 18, wherein said optical feature is a shadow formed by a light source illuminating a texture element (1).

22. A random texture anti-counterfeiting method according to claim 18, said optical feature being a spectral feature.

23. A random texture anti-counterfeiting method according to claim 21, said spectral feature being said texel (1) in a colored spectral feature exhibited by reflected light or/and said spectral feature being under excitation light conditions Element (1) The spectral characteristics exhibited by the emitted light.

24. The random texture anti-counterfeiting method according to claim 18, wherein the texel (1) optical feature is a spectral feature and/or an interference light pattern exhibited by the texel (1) under interference conditions; or in diffraction a spectral feature and/or a diffracted light pattern presented under conditions; or the texel (1) optical feature is a spectral feature and/or a polarized light pattern exhibited by the texel (1) under polarized conditions; or the textured element ( 1) the optical feature is a spectral feature and/or a dispersive light pattern exhibited by the texel (1) under dispersive conditions; or the difference in optical characteristics of the texel (1) is due to a change in spectral characteristics of the illumination source; or The difference in optical characteristics of the texel (1) is due to a change in intensity of the illumination source; or the difference in optical characteristics of the texel (1) is that the illuminating source illuminates the texel at least at one angle (1) ) formed by total reflection.

25. A random texture anti-counterfeiting method according to claim 18, wherein the optical characteristic is light intensity.

The random texture anti-counterfeiting method according to claim 1, wherein the random feature S is a position of the texel (1) and/or the texel (1) is parallel to the texture material (2) Surface orientation and/or texture elements

(1) The rotation of the surface perpendicular to the texture material (2) and/or the spectral features of the texel (1) and/or the geometry of the texel (1) and/or the geometry of the texel (1).

27. The anti-counterfeiting method for random texture according to claim 1, wherein the number of texture elements (1) in the anti-counterfeit mark (3) is greater than N.

The random texture anti-counterfeiting method according to claim 1, wherein the random feature S is stored in a manner that the random feature S is encrypted and converted into a code and printed on the anti-counterfeit mark (3) on. Claim

The random texture anti-counterfeiting method according to claim 1, wherein the random feature S is stored in a manner that the random feature S is stored in a database.

The random texture anti-counterfeiting method according to claim 29, wherein the random feature S is stored in a manner that the random distribution feature on the anti-counterfeiting identifier (3) is directly stored in the database.

The method for anti-counterfeiting of a random texture according to claim 29, wherein the random feature S is stored by numbering the anti-counterfeit identifier (3) and printing the number on the anti-counterfeiting identifier (3) On, the number is stored in the database with the random feature S of the corresponding anti-counterfeit identifier (3).

The random texture anti-counterfeiting method according to claim 1, wherein the random feature S is stored by encrypting the random feature S, converting it into an encoding and printing the anti-counterfeiting identifier ( 3) On, at the same time, the random feature S is stored in the database.

33. A random texture anti-counterfeiting method according to claim 28, 31 or 32, wherein the code or number overlap is printed in the texel (1) acquisition area of the anti-counterfeit mark (3), The acquisition area is an area where the texture element (1) is extracted in the texture material (2) and stored in the recognition system.

34. A random texture anti-counterfeiting method according to claim 1, wherein the acquisition area on the anti-counterfeiting identifier (3) comprises a plurality of collection sub-areas (62), and the recognition system only extracts any one of them. A sub-region (62) is collected, which is an area of the texture material (2) that is extracted in the texture material (2) and stored in the recognition system.

35. A random texture anti-counterfeiting method according to claim 1, wherein the identification-time recognition system extracts any part of the acquisition area, the collection area is extracted in the texture material (2) and is in the identification system. The area in which the stored texture elements (1) are distributed.

36. A random texture anti-counterfeiting method according to claim 35, characterized in that the marking line (65) is printed on the collection area of the anti-counterfeiting mark (3).

37. A random texture anti-counterfeiting method according to claim 1, wherein the identification system comprises a recognizer and a storage database, wherein the recognizer picks up an image and directly transmits it to a storage database, and the stochastic feature S' is to be identified. The extraction is done in the storage database.

38. A random texture anti-counterfeiting method according to claim 1, wherein said identification system comprises a recognizer and a storage database, wherein said recognizer picks up an image and directly transmits it to a storage database, the feature Γ and the recognition feature J. Completed in the storage database.

39. A random texture anti-counterfeiting method according to claim 1, wherein the texel (1) has a geometric size of no more than 150 um.

40. An identifier for identifying the anti-counterfeit identification (3') to be identified in the method of any one of claims 1-39, wherein the identifier comprises an illumination source, the illumination The illumination direction of the light source is randomly set in the identifier, and the identification feature J stored in the identification system contains the optical characteristics of the light source illuminating the texture element (1) from various directions.

41. An identifier for identifying the anti-counterfeit identification (3') to be identified in the method of any of claims 1-39, wherein the identifier includes two illumination sources, The two illumination sources are different illumination angles, and the identification features stored in the identification system contain optical features that illuminate the texture elements (1) from various directions.

42. An identifier for identifying the anti-counterfeit identification (3') to be identified in the method of any one of claims 1-39, wherein the identifier comprises three illumination sources, The three illumination sources are different illumination angles, Claim

The identification features stored in the identification system contain optical features that illuminate the texels (1) from various directions.

43. An identifier for identifying the anti-counterfeit identification (3') to be identified in the method of any one of claims 1-39, wherein the identifier is disposed on the mobile phone and combined with the mobile phone as a overall.

44. An identifier for identifying the anti-counterfeit identification (3') to be identified in the method of any one of claims 1-39, wherein the identifier is a voice answering mode.