[summary of the invention]
It is an object of the invention to: a kind of optical readability bar code anti-counterfeit structure and implementation method are provided.In colour barcode, imbed the dot matrix that mobile phone can be distinguished, only take up the printing area of less than 2%, so that it may record many bit informations, and do not affect the printing quality of image.Utilize the mobile telephone scanning optical readability bar code in popular hands just can inquiring information of goods, review merchandise news, distinguish the true and false of commodity, present the image of different colors under a different angle by darkening region simultaneously and make optical readability bar code anti-counterfeit mark have the function of higher anti-scanning anti-copying.
For reaching the purpose of the invention described above, the present invention proposes a kind of for false proof optical readability bar code structure, and optical readability bar code anti-counterfeit mark is made up of bar code part 101, darkening region 102.
And, in the peripheral region of bar code mark, at least part of region arranges darkening region.
And, the laser holographic film that darkening region is made up of optical diffraction, or the darkening thin film that optical interference is made, or the darkening image of OVI darkening ink printing that optical interference is made, or the thin film formed by micro lens arrays constitutes.
And, the described bar code part 101 in optical readability bar code anti-counterfeit mark can add the optical readability lattice codebook of handset identity, it is achieved the embedment of optical readability information.
And, bar code part 101 is by original two-way array Quick Response Code, adds four colour moment battle arrays red, blue, green, black and the colour multi-dimensional matrix that constitutes, has uniqueness, a corresponding coding of bar code.
Constituting the implementation method of optical readability bar code anti-counterfeit structure, optical readability lattice codebook realized by information embedment method, comprising: data reading step, information embedment step, printing image output step composition, concrete embedment step is as follows:
(1) data reading step, reads the data that will imbed, including commercial product code information from memorizer, organization mechanism code information, anti-counterfeiting codes information, or the attribute according to commodity, build date, manufacturing location, the information that the video files such as permitting sale place, manufacturing enterprise's information etc. and merchandise related information, or buyer's guide, the chained address etc. of website are constituted, or can be as differentiating the information of commodity true and false foundation, and the image of the bar-code label of information to be imbedded；
(2) information embedment step, by lattice codebook image different for the color with colour barcode label image that the above-mentioned information conversion read is optical readability；
The area shared by lattice codebook image of optical readability is far smaller than the area of at least one the printing image including bar code, two-dimensional bar code, dimensional bar code, goods marks, pattern being embedded in；
The dot matrix image of described optical readability is made up of arbitrary shape.
The lattice codebook of optical readability is overlapped with bar code image and constitutes the printing image of the information that is embedded with；
(3) printing image output step, exports the image of embedment information, generates the printing image of the optical readability bar code being embedded with the dot matrix with optical readability.
And, its described optical readability lattice codebook be utilize include the diverse location of dot matrix, the presence or absence of dot matrix, the centralization and decentralization of dot matrix, the varying number of dot matrix, the different directions of dot matrix, dot matrix difformity including at least one or the different geometric distribution record information of combinations thereof.
And, its described optical readability lattice codebook is the different gray value of point utilizing and including the different modulating mode of point of site, the phase modulation method of point of site, the different direction of propagation of point of site, the different frequency of point of site, the different mechanical characteristic of point of site, site, and the different colours of dot matrix is in the different physical distribution record information that utilizes of interior at least one or combinations thereof.
And, optical readability lattice codebook view data is by including that at least one form in character library form, vector data form, virtual printing form, covering printing form realizes.
Hereinafter term involved in the present invention is carried out following definition:
Described " laser holographic film that optical diffraction is made ", refer to use the masterplate made by method of laser microcosmic processing, thin film is suppressed, thin film is formed rugged minute shape, when incident illumination is mapped on these rugged minute shapes, along with the difference of the angle of incident illumination, the image of different colours can be formed.
Described " OVI darkening ink ", refers to that the ink with the characteristic that the different colours along with viewing angle can change is referred to as OVI (Optical Variable Ink) ink.
Described " micro lens arrays ", refer to the printing by transparent ink, or the circular lens that the method for masterplate compacting is formed on thin film, the various piece of printing image corresponding below lens can be projected different directions up, may be implemented under different viewing angles, it is possible to obtain the observing effect of different images.
Described " optical grating ", refer to the printing by transparent ink, or the lens of cylindricality that the method for masterplate compacting is formed on thin film, the various piece of printing image corresponding below lens can be projected different directions up, may be implemented under different viewing angles, it is possible to obtain the observing effect of different images.
Described " darkening layer ", refers to, by laser diffraction on printing element, interfere, or OVI ink, or a kind of angle distinguishing plane along with change light source or mobile phone that micro lens arrays or grating are formed, and can produce the aspect of the image of the figure of different colors.
Described " handset identity plane ", refers to use have and image can be directly converted to the mobile phone of code function when being identified anti-counterfeiting mark, the mobile phone recognition inclined-plane formed on the basis of the plane of anti-counterfeiting mark.
Described " mobile phone of ITC function ", ITC (Image To Code) refers to have and image can be directly converted to the mobile phone masses of code function identifies application system, owing to ITC can process for the colour information of image, therefore the printing image with darkening characteristic can be carried out anti-counterfeit recognition.
Described " pixel " is the least unit of pie graph picture；" site " is and the minimum screen unit corresponding to the least unit of pie graph picture i.e. pixel；" point of site " is the least unit constituting site；" printing points " is the smallest point (1 inch/dpi) describing printing precision." point of site " is made up of printing points.
Described code sign is the least unit of code record information, and the code sign of lattice codebook is a point of lattice codebook, and the code sign of the lattice codebook with screen characteristic is the point of site, and the record of following dot matrix and site are identical implications.
Described the lattice codebook of distribution " geometry ", refer to utilize the diverse location of dot matrix, the presence or absence of dot matrix, the centralization and decentralization of dot matrix, the varying number of dot matrix, the different directions of dot matrix, dot matrix difformity at interior at least one or the stealthy code utilizing different geometric distribution record information of combinations thereof.
Described " lattice codebook of physics's distribution ", referring to the different modulating mode of its dot matrix, the phase modulation method of point of dot matrix, the different direction of propagation of dot matrix, the different frequency of dot matrix, the different mechanical characteristic of dot matrix, the different gray value of dot matrix, the different colours of dot matrix is at interior at least one or the stealthy code utilizing different physical distribution record information of combinations thereof.
Described " gamma characteristic of screen site ", refers to the characteristic of the gray scale homogenization of screen site, i.e. constitutes the gross area number identical characteristics of the point of screen site.
According to site size, described " different modulation systems ", represent that the screen of its site gray scale is called amplitude modulation screen, i.e. AM screen；Represent that the screen of its site gray scale is called frequency modulation screen, i.e. FM screen according to site number.Site for same grayscale can record information according to different modulation systems.
The lattice codebook constituted according to different modulating mode and the lattice codebook being made up of multiple frequencies, both are equivalent in meaning, and the lattice codebook distribution shape of reality is the most identical.The lattice codebook of i.e. AM screen can be said to low-frequency lattice codebook, and the lattice codebook of FM screen can be said to high-frequency lattice codebook.
The lattice codebook constituted according to different modulating mode and the lattice codebook constituted according to the point of multiple different gray scales, both are equivalent in meaning, and the lattice codebook spread geometry of reality is the most identical.That is, owing to the lattice codebook of AM screen is by multiple little sites integrated distribution, so the gray value of the site of AM screen is bigger.Conversely, as the lattice codebook of FM screen is by multiple point dispersed and distributed, so the gray value of each site of FM screen is less.Therefore, the lattice codebook of AM screen can be said to be the lattice codebook that a kind of gray value is bigger, and the lattice codebook of FM screen can be said to the lattice codebook that is to be made up of the point that multiple gray scales are less.
Advantages of the present invention effect is to be identified by a kind of optical readability bar code anti-counterfeit, can realize utilizing the mobile phone in popular hands just can inquiring information of goods, tracing information, distinguish the true and false of commodity, can be while identifying a mark one yard of colour barcode mark, change along with mobile phone recognition angle, the darkening layer of laser hologram part combines with identification printing image, the most reproducible various different images of scanner can be formed, when using above-mentioned anti-counterfeiting mark to carry out mobile phone recognition, the mobile phone with ITC recognition function can obtain various different code, by there is the mobile phone of ITC function using code the highest for one of which probability of happening as the code of true and false certification, achieve that popular handset identity commodity true and false.The difficult problem that the mark that mobile phone can be distinguished in the world all can replicate can be solved, there is the simple and practical feature be easy to and promote.
Detailed description of the invention
Below, referring to the drawings the embodiment of the constructive method of a kind of optical readability bar code anti-counterfeit mark being suitable to mobile phone masses recognition of the present invention is illustrated.
Fig. 1 is the schematic diagram of the composition of a kind of optical readability bar code anti-counterfeit mark.
As shown in Figure 1: the constructive method of a kind of optical readability bar code anti-counterfeit mark, it is made up of bar code part 101, darkening region 102.
Bar code part 101 is the New Type of Code using color as information carrier, on the basis of two-dimensional bar code, by color or gray scale as the third dimension, it is achieved represent three-dimensional information in the plane.By original two-way array Quick Response Code, adding that four colour moment battle arrays red, blue, green, black constitute colour multi-dimensional matrix bar code, the housing of matrix is closed by black lines, and is left white outside housing black surround.Owing to using efficient error correction redundancy algorithm and efficient Boundary Recognition technology, other element and the interference of picture in planar design can be got rid of, identify colour barcode like clockwork, and allow figure to have certain distortion, there is higher fault-tolerant ability, in four color values, also have bigger scope simultaneously.
Bar code is not to be all embedded in code by full detail, only embedded in index information.Utilize reader and mobile phone to send index information to server, be converted into URL information on the server, then branch to corresponding web page.Itself not being the bar code that information is carried, it provides quickly pointing to and data two-way PLC of backstage content.
In order to ensure the individual character of the designed change of color code, premised on color code is the carrying amount to reduce information, it is ensured that at limited pattern space, it is possible to create bigger facility for Graphic Design.
Comparing and traditional planar bar code technology, the sharpest edges of colour barcode are to have employed new information carrying mode and new recognition means so that the identification of color code more efficiently, more convenient, relatively reliable and cheaper.
The laser holographic film that darkening region 102 is made up of optical diffraction, or the darkening thin film that optical interference is made, or the darkening image of OVI darkening ink printing that optical interference is made, or the thin film formed by micro lens arrays constitutes.Along with changing light source or the angle of mobile phone recognition plane, different colors, the image of different figures can be produced.
Here, it is considered to the stability of handset identity, the color category of darkening area requirement darkening is the fewest more good, and such as positive direction recognition is a color, tilts to distinguish another color and just may be used.Use OVI ink, or a kind of angle distinguishing plane along with change light source or mobile phone that micro lens arrays or grating are formed, more stable different color, the image of different figures can be produced.
And by laser diffraction, the method for interference realizes, along with changing light source or the angle of mobile phone recognition plane, being produced different colors, the effect of the image of different figures is difficult to stable, needs special technology to realize.
It addition, use laser diffraction, the method for interference realizes the effect of variable color, and its incident light source to consider to use mobile phone lighting source, in order to stable carries out mobile phone recognition.
Light changing region 102 territory is arranged on outside optical readability bar code region, or around, or in central authorities, or on both sides, or a certain position, or printing covers and goes up identification image.This part carries out truth identification region as the mobile phone with ITC function.
When using above-mentioned anti-counterfeiting mark to carry out mobile phone recognition, change along with handset identity Plane Angle, darkening layer and the combination of identification printing image, the most reproducible various different images of scanner can be formed, the mobile phone with ITC recognition function can obtain various different code, using code the highest for one of which probability of happening as the code of true and false certification, so that it may realize popular handset identity commodity true and false.
Here, handset identity Plane Angle is about 5-20 degree, and mobile phone to be considered illumination is produced reflective on laser diffraction film, allows reflective spot avoid identification region as far as possible.
The darkening region of the optical readability bar code anti-counterfeit mark that the present invention proposes is along with the change of the angle changing light source or mobile phone recognition plane, can produce different color, the image of different figures, the most common scanner optical readability bar code anti-counterfeit that reproducible the invention described above is not proposed identifies.Thus can solve owing to the precision of scanner is far longer than printing precision, and make all of printed article after can be transferred through scanner scanning, carry out the world-famous puzzle replicated.
Fig. 2 is the optical readability bar code anti-counterfeit identification image being embedded with optical readability lattice codebook.Owing to bar code mark is to be embedded in bar code by index information, itself not there is information, in order to make imbed in bar code more information, in bar code region, bulk information can be recorded by embedment optical readability lattice codebook.As in figure 2 it is shown, 201 identify for optical readability bar code anti-counterfeit, 202 is optical readability lattice codebook.
Optical readability lattice codebook 202 is the diverse location record information by dot matrix, more information can be recorded with little dot matrix, the area of the lattice codebook of this form typically only less than 2%, the space of 98% can be left for the image of embedment object, the structure of the most this code itself just has Information hiding feature, is therefore properly termed as Information hiding code.
Fig. 3 is that optical readability dot matrix generates method flow diagram.As shown in Figure 3: optical readability dot matrix is constituted, it is by data reading step, information embedment step, printing image output step composition, specifically comprises the following steps that
(1) data reading step: read the data that will imbed from memorizer, and the object images of information embedment will be carried out.The data that will imbed include anti-counterfeiting codes information, commercial product code information, or the attribute according to commodity, build date, manufacturing location, permitting sale place, the product back-tracing information that manufacturing enterprise's information etc. is relevant to commodity, for the commercial product code of commodity clearing, the country of commodity production and Enterprise organization system code, one yard of information etc. marked by commodity one；Or the information that the chained address etc. of the video files such as buyer's guide, website is constituted, or can be as the foundation information differentiating commodity true and false.
(2) information embedment step: be that there is the lattice codebook image that the color with bar code mark image of optical readability is different by the above-mentioned information conversion read；
The area shared by lattice codebook image of optical readability is far smaller than the area of at least one the printing image including bar code, two-dimensional bar code, dimensional bar code, colour barcode, goods marks, pattern being embedded in；
The dot matrix image of described optical readability is made up of arbitrary shape.
The lattice codebook of optical readability and colour barcode picture registration are constituted the printing image of the information that is embedded with；
The lattice codebook of optical readability is the diverse location record information by dot matrix, and the different position distribution of dot matrix refers to the lattice codebook of the information different with the different location records of point of site.Utilize the different many bit informations of position distribution record of the point of site, the focus of its competition, it is that the quantity of the point of the benchmark dot matrix how making code is minimum, and is used for information record using more putting as information dot matrix, to improve the efficiency of information record.
Equally, utilize the different directional spreding of the point of site, the different distribution of shapes of the point of site, the different site size of the point of site, the geometric distribution mode such as the different sites number distribution of the point of site and the centralization and decentralization of printing points can record many bit informations.
Equally, utilizing the distribution of lattice codebook, by the different modulating mode of the point of its site, the Modulation and Amplitude Modulation mode i.e. AM screen site of such as site represents that information " 1 ", frequency modulated mode FM screen site represent information " 0 " etc..
The phase modulation method of the point of site can obtain the effect of the code of the many bit informations of diverse location record of the point of above-mentioned site.The code utilizing this form can obtain more high efficiency information record effect.
Equally, utilizing the different direction of propagation of the point of site, the different frequency of the point of site, the different mechanical characteristic of the point of site, the different gray value of the point of site, the physical distribution mode such as different colours of dot matrix can record many bit informations.
Finally optical readability lattice codebook directly and is printed picture registration, just can reach the effect of information embedment, but in order to prevent the impact on printing image, the size of the point of site needs at below 0.042mm, in this case the identification difficulty of mobile phone, if the size strengthening the point of site affects again the quality of printing image.
The color of optical readability lattice codebook to select the color different with optical readability bar code anti-counterfeit identification image color, can be C, the image of a kind of color in M, Y, K, such as coloured image, black white image etc..
(3) printing image output step, by the commodity sign image of embedment information, the printing image such as commodity packaging image prints, or output plate making data are carried out making a plate and printed by digital printer, make the printing image of the information of being embedded with.
Optical readability lattice codebook is that common digital printer printing, common ink jet numbering machine printing realizes by common offset press printing, common letterpress printing, common intaglio plate machine printing, common screen printer printing during using typography.
Optical readability lattice codebook extracode on commodity production line is to use the common online coding of ink jet numbering machine, or uses the online extracode of common laser marker.
On common high-speed digital printer, the method realizing high speed printing is that optical readability lattice codebook is made the form of character library, it is encased in the composing system of code-spraying printer, the composing system of code-spraying printer processes according to the form of word, the optical readability lattice codebook digital and corresponding with variable information number by all of variable information, generates printed data, is installed directly into by printed data in high-speed digital printer, thus, it is achieved high speed code-spraying printing.
Realize the another kind of method of high speed code-spraying printing, it is exactly by the printing image of optical readability lattice codebook digital and corresponding with variable information number for all of variable information, printing position, the information such as printed dimensions pass through program, or tool software is fabricated to PDF, TIFF, PS, EPS, the printed data of the document forms such as JPEG or BMP, or it is fabricated to the printed data of the print image file form of other printer vendors dictate, printed data is installed directly in high-speed digital printer, it is possible to realize high speed code-spraying printing.
That is, when being realized the printing of optical readability lattice codebook by high velocity spray ink recorder or digital printer, the data of optical readability lattice codebook are by including character library form, vector data format, image data format, ink jet numbering machine or digital printer private data format are sent in ink jet numbering machine or digital printer.
Optical readability lattice codebook optical readability lattice codebook by character library form can carry out the printing of variable information in the composing system of code-spraying printer or printer, can also be by the way of virtual printer, on the driver of printer, the driver of one virtual printer is installed, the driver of this virtual printer is connected code-spraying printer or printer by program, a printing image it is achieved with from the driver of code-spraying printer or printer, in this printing image, according on the position that user specifies, the optical readability lattice codebook image relevant to variable information is sticked, then, it is sent to code-spraying printer again or printer is implemented printing or prints, repeat above-mentioned operating process, finally achieve that the printing to whole variable information or printing.
The printing of variable information can also use the method covering printing (Overly Print), i.e. on the position specified, the overall printing image that the image of the optical readability lattice codebook relevant to variable information is sticked, it is placed on and has in the internal memory covered specified by the code-spraying printer of printing functionality or printer, code-spraying printer or printer are automatically by this printing image and bill, product packaging or label printing image carry out covering printing, repeat above-mentioned operating process, finally achieve that the printing to whole variable information or printing.
The printing of variable information can also use the method directly printed, i.e. packed or the variable information printing position printing image of label at identical product by program, often add variable information data, and on the picture position relevant to variable information, often stick a view data relevant to variable information and be just sent to code-spraying printer or printer, implement printing or print, until the printing of whole variable information or be completed for printing.
In a word, the printing of variable information data is by including the direct print form of computer, computer master making form, virtual printing form, cover printing form, character library form, directly generate printed data and at least one form of being installed in the form in ink jet numbering machine or digital printer realizes.
Fig. 4 is the schematic diagram of the method by the embedment of diverse location record information realization information.
As shown in Figure 4: 401 is the dot matrix module of a recordable complete information, 402 is benchmark dot matrix site, and 403 is information dot matrix site.Specifically S11, S22And S33For the baseline network on imagination datum line.S00It is characterized site, for representing the direction of dot matrix module.S12, S13, S21, S23, S31And S32For information site, information site can be respectively placed on the grid of four drift angles of diverse location according to the different values of information, recordable 2 bit informations in each information site, if arranging the zonule of a 5*5, the most recordable 3 bit informations in each information site.
The dot matrix module utilizing the many bit informations of diverse location record shown in Fig. 4, the principle of its record information may be interpreted as the phase contrast record information being to utilize the two-dimensional space signal of printing image to propagate.
The dot matrix module utilizing the many bit informations of diverse location record shown in Fig. 4, with a traditional level imagination datum line, the dot matrix module of one level imagination datum line is compared, can be by the imaginary datum line of 45 degree, in the X direction, and the printing error in Y-direction is modified logarithmic code printer, it is possible to reduce the number of baseline network, the number of increase information site, can obtain the record of more large information capacity.
Another feature of the dot matrix module utilizing the many bit informations of diverse location record shown in Fig. 4 is: the center grid of each information site is inevitable constitutes a right angled triangle with two benchmark dot matrix, that is the position calculation of two benchmark dot matrix that constituted right angled triangle can quickly be passed through in any one information site goes out the position of information site, thus obtains the code value of information site.Its result can realize the effect quickly distinguished.
The feature that also has of the dot matrix module utilizing the many bit informations of diverse location record shown in Fig. 4 is: feature site S00With baseline network S33Air line distance nearer than distance between the point of any two site in dot matrix module, it means that utilize this feature can be quickly found feature site, and the position of baseline network, it is achieved quickly to identify the effect of the code value of variable information invisible code.
The schematic diagram of the variable optical readability lattice codebook that Fig. 5 is made up of a plurality of dot matrix modules.
As shown in Figure 5: 501 is to line up a plurality of above-mentioned dot matrix modules to may be constructed variable length optical readability code.The feature site that 502 is initial dot matrix module, 503 is the feature site terminating dot matrix module.Here recordable 12 bit informations of each dot matrix module, 9 dot matrix modules are with regard to recordable 108 bit informations.Be can be formed by the variable length optical readability code of any information capacity by the number increasing dot matrix module with reference to Fig. 4.
The area shared by point of the lattice mode networking point shown in Fig. 5 is below 2%, can be 98% for image, the structure of the structure of a most this dot matrix inherently Information hiding, particularly when the size of the point of site is far smaller than the size of Ruili criterion, time i.e. less than 0.04mm, the mark that variable length optical readability lattice codebook prints out after overlapping with identification image, the quality of its printing image is unaffected.
If the point of lattice mode networking point uses yellow point, or white point more can improve the disguise of lattice mode networking point.When the point of lattice mode networking point is black, setting of the density of the pixel of reader needs the pixel of corresponding 3*3 imageing sensor in the area of the point of each site, if using yellow point, or white point needs the pixel of corresponding 12*12 imageing sensor in the area of the point of each site.Utilize this phenomenon, the point of lattice mode networking point uses yellow point, or during white point, if the size of the point of site is 0.04mm, the point wanting correctly to replicate dot matrix module site needs the scanning means of more than 7200dpi, such equipment hardly results in for fake producer, and therefore the point of lattice mode networking point uses yellow point, or white point has the most reproducible feature.
Fig. 6 is the gray difference the utilizing diverse location schematic diagram by dot pattern code constructive method.nullAs shown in Figure 6: 601 represent an information embedment module，602 represent the embedment unit of bit information more than，4 zonules are had in this unit，The such as 603 average gray value numerical value Vcs higher than the average gray value of other three zonules representing each pixel in the zonule in the upper right corner of this unit，Or a numerical value Vc lower than the average gray value of other three zonules，Information " 0 " is represented with this，The such as 604 average gray value numerical value Vcs higher than the average gray value of other three zonules representing each pixel in the zonule in the upper left corner of this unit，Or a numerical value Vc lower than the average gray value of other three zonules，Information " 1 " is represented with this，The such as 605 average gray value numerical value Vcs higher than the average gray value of other three zonules representing each pixel in the zonule in the lower left corner of this unit，Or a numerical value Vc lower than the average gray value of other three zonules，Information " 2 " is represented with this，The such as 606 average gray value numerical value Vcs higher than the average gray value of other three zonules representing each pixel in the zonule in the lower right corner of this unit，Or a numerical value Vc lower than the average gray value of other three zonules，Information " 3 " is represented with this，So use 4 zonules can represent 2 bit informations.
Fig. 7 is the flow chart of a kind of optical readability lattice codebook information identifying the upper embedment of optical readability bar code anti-counterfeit mark.
As shown in Figure 7: a kind of recognition methods identifying the upper embedment information of optical readability bar code anti-counterfeit mark, being to be read image step, code identification step by mobile phone, code value output returns the result step composition, specifically comprises the following steps that
(1) handset image read step, it is embedded with, with the alignment lens of mobile phone, the lattice codebook area image that mobile phone can be distinguished, reads the lattice codebook of optical readability and at least one the printing image including bar code, two-dimensional bar code, dimensional bar code, goods marks, pattern coincides the printing image of the information that is embedded with formed；
Code identification step, the rule imbedded according to the lattice codebook information of optical readability, identifies the code value of the lattice codebook of optical readability；
Code value output or return the result step, go out the code value of optical readability lattice codebook by handset identity after, by connecting the webserver, can be according to code value retrieval network server, the information corresponding to this code value is taken out from server, and show on mobile phone screen, or carry out various network operation according to this code value information.This network operation includes that connecting real-time performance reviews product, and the information that connection network will identify that contrasts with the information of commodity, it is achieved commodity true and false is inquired about, and connects real-time performance merchandise sales online supervision and prevents falsifying etc..
Fig. 8 is the another kind of schematic diagram imbedding optical readability lattice codebook in optical readability bar code anti-counterfeit mark of the present invention.
As shown in Figure 8: 801 is the printing image of the mobile phone recognition variable information optical readability bar code anti-counterfeit mark of the information embedment method realization importing center reference gray value.Optical readability bar code anti-counterfeit identification image quality after this figure just can be seen that embedment information is not destroyed.
802 is imagination horizontal datum, here consider to be identified with being attached to the sealing part of bottle, therefore it is required that also should be able to distinguish in the case of the least circular arc, therefore by the top identified and below several points of horizontal distribution constitute two imaginary horizontal datums, mark label can be made to remain to correctly carry out the division of zonule on the least circular arc, remain to correct recognition.
803 is imagination vertical reference line, it is also contemplated that be identified with may being attached on the edge of any situation, therefore it is required that mark label also should be able to correctly be distinguished on the edge of any situation, therefore two imaginary vertical reference lines are constituted by distributed several points on the left side identified and the right, can make mark label on the edge of any situation, remain to correctly carry out the division of zonule, remain to correct recognition.
Here, also contemplate for only arranging an imaginary horizontal datum and an imaginary vertical reference line in mark in the case of some is less demanding.
Optical readability bar code anti-counterfeit mark also can use optical readability variable information code to realize a mark one yard as shown in Figure 8.Can be at the image printing dot matrix module immediately above of original image.The shower nozzle that can install variable information on the printer of original printing mark additional achieves that the printing of a mark one yard.
The laser holographic film that darkening region proposed by the invention is made up of optical diffraction, or the darkening thin film that optical interference is made, or the darkening image of OVI darkening ink printing that optical interference is made, or the thin film formed by micro lens arrays constitutes.
Fig. 9 is the schematic diagram of " laser holographic film that optical diffraction is made ", the laser holographic film that optical diffraction is made refers to use the masterplate made by method of laser microcosmic processing, thin film is suppressed, thin film is formed rugged minute shape, when incident illumination is mapped on these rugged minute shapes, along with the difference of the angle of incident illumination, the image of different colours can be formed.901 laser holographic films made for optical diffraction, the 902 laser holographic film partial enlarged drawings made for optical diffraction.
Figure 10 is " the darkening thin film that optical interference is made " schematic diagram, the 1001 darkening thin film made for optical interference, the 1002 darkening thin film close-up schematic view made for optical interference.When certain bundle light beam incident optical interferes the darkening film surface made, when running into ground floor interface, the segment beam in incident illumination is returned with certain angle reflection, and another part is then refracted in film, with on another angle reflection to ground floor interface, and again can reflect when encountering second layer interface.Owing to these reflection light and transmission light both are from same light wave, the optical path difference of the two-beam that incident illumination decomposites is different, so when they meet coherent light condition, just creating interference of light phenomenon.Along with the Angulation changes of plane distinguished by light source or mobile phone, the image of the figure of different colors can be produced.
The darkening image construction of the OVI darkening ink printing that " darkening region " also can be made up of optical interference, " OVI darkening ink ", refers to that the ink with the characteristic that the different colours along with viewing angle can change is referred to as OVI (Optical Variable Ink) ink.By the printing of darkening ink, formed a kind of along with changing light source or the angle of mobile phone recognition plane, the image of the figure of different colors can be produced.The various piece of printing image projects different directions up, may be implemented under different viewing angles, it is possible to obtain the observing effect of different images.
Figure 11 is " thin film that micro lens arrays is formed " schematic diagram, 1101 thin film formed for micro lens arrays, the 1102 thin film partial enlarged drawings formed for micro lens arrays, " micro lens arrays " refers to the printing by transparent ink, or the circular lens that the method for masterplate compacting is formed on thin film, the various piece of printing image corresponding below lens can be projected different directions up, may be implemented under different viewing angles, it is possible to obtain the observing effect of different images.