CN102795008B - Dynamic Mohr encryption method of anti-counterfeiting image - Google Patents
Dynamic Mohr encryption method of anti-counterfeiting image Download PDFInfo
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- CN102795008B CN102795008B CN201210224160.5A CN201210224160A CN102795008B CN 102795008 B CN102795008 B CN 102795008B CN 201210224160 A CN201210224160 A CN 201210224160A CN 102795008 B CN102795008 B CN 102795008B
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Abstract
The invention relates to a plate-making technology in holographic anti-counterfeiting printing and particularly relates to a dynamic Mohr encryption method of an anti-counterfeiting image. The invention provides the dynamic Mohr encryption method of the anti-counterfeiting image, which has the advantages of laser hologram, overlapping of a plurality of hidden encrypted patterns, clear decoded encrypted patterns, good hiding performance, continuous vivid representation and dynamic effect; a plurality of layers of related white and black encrypted patterns are overlapped on an anti-counterfeiting identification and are processed by a computer optical grating to obtain parallel straight-line clusters which have the same optical grating frequency and have the different optical grating directions to form an optical grating pattern; the frequency of the parallel straight-line clusters is slightly changed in an encrypted pattern region, namely one section of an arc-shaped bending line cluster which is waved in the same direction is arranged between a starting point and a finishing point of crossing the parallel straight-line clusters and the encrypted pattern; the direction of each layer of the parallel straight-line clusters is rotated, overlapped and hidden according to a related sequence at an equal angle to form a synthesized pattern; and a decoding sheet with the frequency which is the same as that of the optical grating pattern is overlapped on the synthesized pattern to be rotated and observed, and n layers of the related encrypted patterns are obviously displayed in sequence in an animation manner. The dynamic Mohr encryption method of the anti-counterfeiting image improves the anti-counterfeiting capability and is novel.
Description
Technical field
The present invention relates to the plate-making technology in the printing of a kind of holographic false proof, particularly a kind of anti-counterfeiting image dynamic moire encryption method.
Background technology
Holography is a kind of by extensively cognitive Techniques of Optical Security, along with the development of moulding holographic technology, laser hologram image manufacturing technology is widely used in trade mark, certificate, credit card and marketable securities etc. false proof, in order to improve the anti-counterfeiting power of holographic security technology, many enterprises have carried out new developing to anti-fake product, propose encryption holographic security technology, Mohr theory has wherein been used to be encrypted, it is that to belong to optical encryption false proof that More encrypts holographic security technology, More's encryption anti-counterfeiting technology is hidden on anti-counterfeiting mark by original word or pattern-information, then by special same frequency decoding piece hide word or pattern displaying out, this technology is mainly used in making encryption anti-counterfeiting label.When currently available technology utilizes moir patterns principle to carry out dynamic effect, this Moire fringe is because grating is a little mobile a little, Moire fringe just has obviously dynamic effect, but the dynamic mode of this dynamic moire hologram can't control, that is, Moire fringe manifest be with
Machine, do not know that moir patterns will moving direction, its moir patterns change in shape is uncontrollable, such moir patterns hologram tool bears the character of much blindness and randomness, the moir patterns of reproducing is some stripeds without practical significance, the dynamic effect of moir patterns is also random, cannot definitely describe, and is the figure line without actual application value.How to utilize Moire technique, produce dynamic effect, it is the problem that technical staff urgently solves, also have, the method using Moire principle to be encrypted is in general pattern, hide the pattern that will encrypt, although achieve enciphering hiding pattern, but, this method only can resolve implicit pattern, the pattern hidden be independently, and multiple encrypted patterns can not be realized, the animate mode that is mutually related dynamic mode and continuous pattern, original now made mark is more and more less, become increasingly complex, how to hide several figure lines, and increase dynamically
Effect, increase special antiforge function, produce dynamic, meet the laser hologram product of client for special technique demand in packaging, particularly to exquisite pattern, bright gloss, the hologram again while the requirement of rich colors with dynamic effect is the industry technical staff problem to be solved such as urgent.
Summary of the invention
Object of the present invention be exactly in order to overcome defect that above-mentioned prior art exists, provide a kind of laser hologram, superpose several concealed encrypted patterns, decoding encrypted patterns is clear, hiding good, have continuous print, apparent vividly, the anti-counterfeiting image dynamic moire encryption method of dynamic effect.
The object of the invention is to have come by the following technical programs:
A kind of anti-counterfeiting image dynamic moire of the present invention encryption method, wherein:
On anti-counterfeiting mark, superposition is provided with some infill layer figure lines, and be set to n infill layer figure line, these encryptions figure line is the black and white pattern be associated;
Computer is adopted by every layer of described encryption figure line to obtain the different parallel lines of the identical grating orientation of the grating frequency bunch grating pattern formed by grating process respectively;
There is tiny change in the parallel lines of described grating pattern frequency bunch in encryption figure line region, the tiny change of its frequency described is exactly the arc line shaped sweep bunch arranging one section of equidirectional fluctuation between the Origin And Destination that interlocks of parallel lines bunch and encryption figure line;
The direction of the described parallel lines of every layer of grating pattern bunch is overlapping according to the order that is associated equal angular rotations of being separated by successively, make the grating pattern overlap of some infill layer figure lines hide formation composite diagram;
Separately be provided with the decoding piece identical with the frequency of described grating pattern, described composite diagram is observed by described decoding piece, because described decoding piece is identical with the grating frequency of grating pattern every layer described, decoding piece is overlapped on described composite diagram and also slowly at the uniform velocity rotate, make decoding piece grating orientation identical with the grating orientation of the grating pattern of some infill layer figure lines respectively successively, at this moment the parallel lines bunch position composite diagram under decoding piece manifesting grating orientation identical layer produces moir patterns, and make at sweep bunch position moire-free that encryption figure line is clear to be manifested and identify, the obvious n infill layer figure line be associated of animation chip successively,
From the grating orientation of the first amplitude grating pattern at the uniform velocity to equidirectional rotate decoding piece, make its grating orientation successively identical with the grating orientation of the described grating pattern of n layer, the identical encryption figure line of grating orientation will be manifested successively, the encryption figure line of described association can at the uniform velocity manifest successively, and associated encryption figure line forms associated diagram line dynamic effect;
Positive direction, opposite direction at the uniform velocity rotate through the associated diagram line dynamic effect that n-1 angularly will form the encryption figure line of long-time continuous repeatedly continuously.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: the angle that is stacked between the parallel lines of the described grating pattern of each layer bunch is not less than 15 °.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: described concealed encrypted pattern is 2 width to 5 width.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: described in any width, the grating fringe direction setting of encryption figure line is the direction determined arbitrarily, the encryption figure line that all the other are associated is the equivalent increase and decrease anglec of rotation successively.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: described encryption figure line comprises figure, word, numeral and any combination thereof.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: when described some infill layer figure lines are set to be mutually related pattern, decoding piece continuous rotation is decoded, the composite diagram resolved will produce continuous print dynamic change, see the cartoon effect that continuous n width encryption figure line forms, described in be associated be comprise content or modal association.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: the mode of described encryption figure line computer code is carried out process and manufactured grating pattern, computer adjusts the grating frequency of the grating pattern of each encryption figure line, grating orientation is formed parallel lines bunch, sweep bunch and decoding piece.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: overlapping hiding while making some infill layer figure lines be superimposed under a holographic carrier master pattern.
Anti-counterfeiting image dynamic moire encryption method of the present invention, wherein: described equal angular overlapping angle scope is greater than 20 ° of angles.
The present invention has following remarkable advantage:
1, the encrypted patterns of anti-counterfeiting image dynamic moire encryption method making of the present invention, needs the decoding piece of CF to decode, just can see implicit pattern, and can complete several laser anti-counterfeit patterns simultaneously and realize continuously dynamic observing effect, apparent property is more perfect.
2, the present invention makes highly difficult complicated pattern by utilizing computer, and the encrypted patterns superposition making several frequencies identical is arranged, and complexity strengthens, thus greatly improves anti-counterfeit capability, and before solving, traditional More encrypts the limitation of use.
3, the present invention realizes multilayer More encryption, namely in identical position, decoding piece is moved the displacement that dislocation one is very little, different decoding patterns can be seen, comprise word and figure line, namely along with the slight displacement diverse location of decoding piece, the multiple different pattern that is associated of continuous print is out observed in decoding, increases and utilizes decoding piece anti-fake encrpted pattern of decoding to have dynamic effect novelty.
4, through experiment test, this More's encryption method observes decoding pattern under being adapted at white light, has also catered to the environment of observation of client and consumer.
Accompanying drawing illustrates:
Fig. 1: the building-up process schematic diagram being the embodiment of the method for a kind of anti-counterfeiting image dynamic moire encryption of the present invention.
Fig. 2: the embodiment formation process schematic being concealed encrypted figure line in the method for another kind of anti-counterfeiting image dynamic moire encryption of the present invention.
Fig. 3: be represent close-up schematic view in Fig. 1.
Detailed description of the invention:
Below in conjunction with specific embodiment, accompanying drawing, the present invention will be described in detail:
As shown in Fig. 1, it is a specific embodiment of the present invention, a kind of anti-counterfeiting image dynamic moire encryption method, on Fig. 1 anti-counterfeiting mark 1, superposition is provided with 3 infill layer figure lines 3, encryption figure line 3-1 respectively, encryption figure line 3-2, encryption figure line 3-3, this 3 infill layer figure line is that red crowned crane spreads the wings the black and white pattern that 3 width of wing diverse location that swing are associated, described concealed encrypted figure line 3 can be 2 width to 5 width, namely the hiding at most 5 width effects of the overlapping encryption figure line 3 hidden of anti-counterfeiting image dynamic moire encryption institute are up to standard, hiding width number is at least 2 width, the present embodiment is hiding 3 width encryption figure lines 3 as shown in Fig. 1 first row.
Every one deck figure line 3-1,3-2,3-3 of described 3 infill layer figure lines 3 are adopted computer to obtain grating pattern 9-1,9-2,9-3 of the identical parallel lines of grating frequency bunch 7-1,7-2,7-3 formation by grating process all respectively, namely obtain grating pattern 9-1,9-2,9-3 of the different parallel lines of the identical grating orientation of 3 amplitude grating frequencies bunch 7-1,7-2,7-3 formation as shown in Fig. 1 the 2nd row; Described grating frequency refers to the lines number of the parallel lines in unit length, and the direction of described grating frequency refers to the direction of parallel lines, the identical grating pattern referring to that number of lines order is identical, line weight is identical in unit length of described frequency.
At described each amplitude grating pattern 9-1, 9-2, the parallel lines bunch 7-1 of 9-3, 7-2, 7-3 is at encryption figure line region 8-1, 8-2, in 8-3 there is tiny change in frequency, the tiny change of its frequency described is exactly the arc line shaped sweep bunches 13 arranging one section of equidirectional fluctuation between parallel lines bunch 7-1 and the encryption figure line 3-1 starting point 11 of interlocking and terminal 12, the enlarged diagram after the amplification manyfold representing the independent width figure of second row in Fig. 1 as shown in Figure 3, actual is very meticulous figure line, the present invention is that the computer research figure line of microcosmic and the relation of lines and the phenomenon that shows are applied in holographic security technology, the arc line shaped sweep bunches 13 that a section equidirectional fluctuation is set between the starting point 11 that parallel lines bunch 7-1 and encryption figure line 3-1 interlocks and terminal 12 is obviously seen in figure, described arc line shaped sweep bunches 13 is the arc shape convex sigmoid lines bunches 13 in encryption figure line 3 and the parallel lines bunch 7 one section of equidirectional fluctuation of setting up between each starting point 11 and each terminal 12 be overlapping, this sweep bunches 13 and parallel lines bunches 7 is lines of level and smooth slowly transition, between its starting point 11 and terminal 12, spacing is little, then camber line is short and radian is little, otherwise camber line is long and radian is large greatly, then for spacing between its starting point 11 and terminal 12.
The direction of the described parallel lines of every infill layer figure line 3 bunches 7 is overlapping according to the order that is associated equal angular rotations of being separated by successively, make the 3 infill layer figure lines 3 i.e. grating pattern 9 of these 3 encryption figure lines of encryption figure line 3-1,3-2,3-3 be that grating pattern 9-1,9-2,9-3 are overlapping respectively and mutually hide formation composite diagram 2; It is the composite diagram 2 of the present embodiment as shown in the 3rd row of Fig. 1, also be the figure of an exaggeration, to show that the inside is concealed with red crowned crane and spreads the wings, it is not recognizable that the actual product manufactured hides figure line, and the be stacked angle of each layer grating pattern 9 i.e. parallel lines of grating pattern 9-1,9-2,9-3 described in the present embodiment bunches 7 i.e. parallel lines bunch between 7-1,7-2,7-3 is 25 °.
Separately be provided with the decoding piece 4 identical with the frequency of described grating pattern 9, as shown in last row of Fig. 1, described decoding piece 4 is by the decoding piece 4 of described parallel lines bunch 7 light transmissions formed, the decoding piece 4 seen in figure is decoding pieces 4 with parallel lines bunch that illustration is expressed, it is the decoding piece 4 only with signal effect amplified, the parallel lines of decoding piece 4 in actual applications bunches 7 is very fine and closely woven, described composite diagram 2 is observed by described decoding piece 4, because described decoding piece 4 is identical with the grating frequency of described every layer of grating pattern 9, decoding piece 4 is overlapped on described composite diagram 2 and also slowly at the uniform velocity rotate, make the grating orientation of decoding piece 4 identical with the grating orientation of the grating pattern 9 of 3 infill layer figure lines 3 respectively successively, at this moment parallel lines bunch 7 positions composite diagram 2 under decoding piece 4 manifesting grating orientation identical layer produce moir patterns, and sweep bunch 13 place's moire-frees and make that encryption figure line 3 is clear to be manifested and identify, the obvious 3 infill layer figure lines 3 be associated of animation chip successively, encryption figure line 3-1 respectively, 3-2, the anti-counterfeiting information of 3-3, that is, when using the decoding piece 4 identical with the grating frequency of grating pattern 9 to cover on anti-fake label 1 with specific angle and the identical angle of frequency direction, the direction of the grating of described decoding piece 4 and the grating of encryption figure line 3 are just close to consistent, enciphered message with regard to having encryption figure line 3 manifests, until two on all four positions of grating, enciphered message with regard to having gem-pure encryption figure line 3 manifests, it is also understood that for: when the angular superposition of the parallel lines bunches 7 of the angle of decoding piece grating orientation 4 and encryption figure line 3 time, the sweep of this sweep bunches 13 will highlight, other same frequency region produces irregular, random moir patterns, and the sweep place of sweep bunches 13 would not produce moir patterns, just can differentiate appeared suddenly adding
Close content.
From the grating orientation of decoding piece 4 and the grating pattern 9-1 of the first width encryption figure line 3-1 is overlapping, at the uniform velocity rotate decoding piece 4 to equidirectional, make the grating orientation of decoding piece 4 successively identical with the grating orientation of grating pattern 9-2 with 9-3 of described 3 infill layer figure lines 3, at the uniform velocity will manifest encryption figure line 3-1,3-2,3-3 that namely the encryption figure line 3 identical with grating orientation associate successively, associated encryption figure line 3 forms associated diagram line dynamic effect; Equal angular rotation overlapping angle of the present invention is 25 °.
Positive direction, opposite direction at the uniform velocity rotate through the associated diagram line dynamic effect that two angularly will form the encryption figure line 3 of relative long-time continuous repeatedly continuously.Described encryption figure line 3 carries out process by the mode of computer code and manufactures grating pattern 9, the parameters such as parallel lines that the computer adjustment grating frequency of grating pattern 9, grating orientation are formed bunches 7, sweep bunches 13 and decoding piece 4.
Also have, the grating fringe direction setting of the grating pattern 9 of described any width encryption figure line 3 is the direction determined arbitrarily, the encryption figure line 3 that all the other are associated is the equivalent increase and decrease anglec of rotation successively, as shown in the 4th row of Fig. 1, namely the present embodiment 3 width encrypts figure line 3, if be initial grating fringe direction with the vertical grating fringe direction setting of a middle width encryption figure line 3, so, the anglec of rotation of the grating orientation of the first width encryption figure line 3 is exactly negative rotation gyration, the anglec of rotation of the grating orientation of the 3rd width encryption figure line 3 is exactly positive rotation angle, the anglec of rotation be successively-25 ° to 0 ° again to+25 ° successively constantly change form continuous animation pattern, described encryption figure line 3 comprises figure, word, numeral and any combination thereof.
When described in the present embodiment, 3 infill layer figure lines 3 are set to be mutually related pattern, decoding piece 4 continuous rotation is decoded, the composite diagram 2 resolved will produce continuous print dynamic change, see the cartoon effect of continuous 3 width encryption figure lines 3 compositions, described in be associated be comprise content or modal association.
The present embodiment conceals three encryption figure lines, cannot judge to be concealed with several encryption figure line 3 in unwitting situation, foregoing be make some infill layer figure lines 3 superpose be placed on one independently region overlap hide, also overlapping hiding while some infill layer figure lines 3 can also be made in addition to be superimposed under a holographic carrier master pattern, also can realize; The angle that is stacked between the parallel lines of each layer grating pattern 9 of the present invention bunches 7 is not less than 15 °, if be less than 15 ° of angle figure lines mutually can produce interference, in other words faint manifesting may be had by an other figure while the encryption figure line 3 of clear display same frequency, so the angle that is stacked between the parallel lines of described each layer grating pattern 9 bunches 7 is not less than 20 °, namely angular range angularly overlapping described in is more clear to be greater than 20 ° of angles, can not produce the interference of two pictures.
The decoding piece 4 seen in figure of the present invention is decoding pieces 4 with parallel lines bunch that illustration is expressed, be the decoding piece 4 only with signal effect amplified, the parallel lines of decoding piece 4 in actual applications bunches 7 is very fine and closely woven and is the decoding piece 4 with light transmission.
Embodiment two, as shown in Fig. 2, second embodiment of the invention is the formation process schematic of the encryption figure line hiding the vibrations of telephone set bell ring in the method for an anti-counterfeiting image dynamic moire encryption.
The present embodiment be added with on certain region of anti-counterfeiting mark 13 infill layer figure lines 3 as Fig. 2 in the encryption figure line 3-1 of first row, 3-2, 3-3, these figure lines are cannot see on the surface of mark 1, and actual design is concealed with the composite diagram 2 of not identical 3 vibrating states in an old telephones receiver position that 3 infill layer figure lines 3 are formed, as shown in the 3rd row of Fig. 1, the decoding piece 4 of the light transmissions formed by described parallel lines bunches 7 to overlap on anti-counterfeiting mark 1 as shown in the 4th row of Fig. 1, described composite diagram 2 is observed by decoding piece described in continuous rotation 4, at this moment grating pattern 9 i.e. grating pattern 9-1 can be seen respectively successively, 9-2, namely 9-3 upper encryption figure line 3 encrypts figure line 3-1, 3-2, while the anti-counterfeiting information of 3-3, can see that telephone set is owing to being that the figure of three width diverse locations superposes continuous transformation and produces the visual effect that receiver is vertical tremor, and the outward appearance that minor modifications is not using described decoding piece 4 directly to visually observe composite diagram 2 in these frequencies does not observe,
The principle analysis signal of encryption that Here it is and decoding.
The mode of encrypted patterns computer code of the present invention processes, and rotates superposition and form composite diagram 2 after the frequency of the grating pattern 9 that computer adjustment encryption figure line 3 is processed into, line orientations, line weight.For coordinating pattern encryption above, the software of the pattern line process of some specialties can be used.
There is tiny change in the described grating pattern 9 i.e. parallel lines of grating pattern 9-1,9-2,9-3 shown in Fig. 2 second row of the present invention bunches 7 i.e. parallel lines bunch 7-1,7-2,7-3 frequency in encryption figure line region 8 i.e. encryption figure line region 8-1,8-2,8-3, the tiny change of its frequency described is exactly the arc line shaped sweep bunches 13 arranging one section of equidirectional fluctuation between the staggered starting point 11 of parallel lines bunches 7 and encryption figure line 3 and terminal 12, at this moment as Fig. 2 be shown in decoding piece 4 times and observe the parallel lines bunches 7 composite diagrams 2 manifesting grating orientation identical layer and comprise parallel lines bunch 7-1, 7-2, 7-3 position produces moir patterns, and sweep bunch 13 place's moire-frees be overlapping with encryption figure line 3 and make that encryption figure line 3 is clear to be manifested and identify, the direction of the described parallel lines of every infill layer figure line 3 bunches 7 to be separated by equal angular rotations overlap successively according to the order that is associated, the present embodiment has the angularly rotation of 25 ° overlapping, 3 infill layer figure lines 3 are made namely to be encryption figure line 3-1 respectively, 3-2, the grating pattern 9 of 3-3 comprises corresponding grating pattern 9-1, 9-2, 9-3 overlap is hidden and is formed composite diagram 2, cover decoding piece 4 on composite diagram 2, observe the composite diagram 2 difference content that will see and not have decoding piece to see, if slowly at the uniform velocity rotate decoding piece 4 it is seen that the anti-counterfeiting information of the foregoing obvious 3 infill layer figure lines 3 be associated of animation chip successively,
The present invention adopts the pattern of encryption to go out the film and turns over mask plate, by the method for mask photoetch, by the design transfer of the film on photoresist, the photoetching of high accuracy dot matrix photoengraving pattern maybe the pattern transfer of having encrypted is become to make a plate, then nickel version is translated into, and observe encryption and decryption effect, after adopting encryption method of the present invention, can in antifalsification label with conventional laser anti-counterfeiting characteristic with the use of.
Claims (9)
1. an anti-counterfeiting image dynamic moire encryption method, is characterized in that:
On anti-counterfeiting mark (1), superposition is provided with some infill layer figure lines (3), is set to n infill layer figure line (3), and these encryptions figure line (3) are the black and white patterns be associated;
Computer is adopted to obtain the different parallel lines of the identical grating orientation of the grating frequency bunch grating pattern that (7) are formed (9) by grating process respectively every layer of described encryption figure line (3);
There is tiny change in the frequency in encryption figure line region (8) of the parallel lines bunch (7) in described grating pattern (9), is exactly the arc line shaped sweep bunch (13) arranging one section of equidirectional fluctuation between the staggered starting point (11) of parallel lines bunch (7) and encryption figure line (3) and terminal (12);
Equal angular rotation of being sequentially separated by successively according to being associated in the direction of the described parallel lines of every layer of grating pattern (9) bunch (7) is overlapping, grating pattern (9) overlap of some infill layer figure lines (3) is hidden and forms composite diagram (2);
Separately be provided with the decoding piece (4) identical with the frequency of described grating pattern (9), described composite diagram (2) is observed by described decoding piece (4), because described decoding piece (4) is identical with the grating frequency of grating pattern every layer described (9), decoding piece (4) is overlapped described composite diagram (2) go up and slowly at the uniform velocity rotate, make decoding piece grating orientation identical with the grating orientation of some layers of grating pattern (9) respectively successively, at this moment parallel lines bunch (7) position composite diagram (2) under decoding piece (4) manifesting grating orientation identical layer produces moir patterns, and make at described sweep bunch (13) position moire-free that encryption figure line (3) is clear to be manifested and identify, obvious n infill layer figure line (3) be associated of animation chip successively,
From the grating orientation of grating pattern (9) described in the first width at the uniform velocity to equidirectional rotate decoding piece, make its grating orientation successively identical with the grating orientation of the described grating pattern of n layer (9), the identical encryption figure line (3) of grating orientation will be manifested successively, the encryption figure line (3) of described association can at the uniform velocity manifest successively, and associated encryption figure line (3) forms associated diagram line dynamic effect;
Positive direction, opposite direction at the uniform velocity rotate through the associated diagram line dynamic effect that n-1 angularly will form the encryption figure line (3) of long-time continuous repeatedly continuously.
2. according to the anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: the angle that is stacked between the parallel lines bunch (7) of the described grating pattern of each layer (9) is not less than 15 °.
3. according to the anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: described encryption figure line (3) is 2 width to 5 width.
4. according to a kind of anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: the grating fringe direction setting encrypting figure line (3) described in any width is the direction determined arbitrarily, the encryption figure line (3) that all the other are associated is the equivalent increase and decrease anglec of rotation successively.
5. according to a kind of anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: described encryption figure line (3) comprises figure, word, numeral and any combination thereof.
6. according to a kind of anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: when described some infill layer figure lines (3) are set to be mutually related pattern, decoding piece (4) continuous rotation is decoded, the composite diagram (2) resolved will produce continuous print dynamic change, see the cartoon effect that continuous n width encryption figure line (3) forms, described in be associated be comprise content or modal association.
7. according to a kind of anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: described encryption figure line (3) is carried out process by the mode of computer code and manufactured grating pattern (9), computer adjust the grating frequency of the grating pattern (9) that each encryption figure line (3) makes, parallel lines bunch (7), sweep bunch (13) and decoding piece (4) that grating orientation is formed.
8. according to a kind of anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: overlapping hiding while making the superposition of some infill layer figure lines (3) be arranged under a holographic carrier master pattern.
9. according to a kind of anti-counterfeiting image dynamic moire encryption method described in claim 1, it is characterized in that: described equal angular overlapping angle scope is greater than 20 ° of angles.
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| WO2015090038A1 (en) * | 2013-12-17 | 2015-06-25 | Beijing Zhigu Rui Tuo Tech Co., Ltd | Information exchange |
| CN103802517B (en) * | 2014-02-19 | 2017-07-11 | 湖南工业大学 | A kind of grating anti-counterfeiting technology based on point shape |
| FR3019074B1 (en) * | 2014-04-01 | 2016-04-15 | Snecma | METHOD FOR SURFACE MARKING A MECHANICAL PIECE BY PREDEFINED GRAPHICAL REPRESENTATION WITH HOLOGRAPHIC TYPE EFFECT |
| CN104574464B (en) * | 2015-01-08 | 2017-07-14 | 北京东港安全印刷有限公司 | A kind of false proof grain pattern of random matrix Moire fringe and preparation method thereof |
| WO2016147813A1 (en) * | 2015-03-19 | 2016-09-22 | 凸版印刷株式会社 | Identification device, identification method, identification program, and computer-readable medium containing identification program |
| CN106274098B (en) * | 2016-08-08 | 2018-11-02 | 杭州电子科技大学 | A method of identifying hidden text figure using moire phenomenon |
| CN106926599A (en) * | 2017-02-20 | 2017-07-07 | 陕西科技大学 | A kind of preparation method for printing interleave and false proof dynamic moire line |
| CN108428139B (en) * | 2018-02-08 | 2022-05-31 | 湖南工业大学 | Grating anti-counterfeiting unlocking method and device without revealing layer |
| CN108694717A (en) * | 2018-05-16 | 2018-10-23 | 臧戈平 | The method of the authenticity and expressive force of the hidden image decrypted in enhancing digital picture |
| CN110858360A (en) * | 2018-08-24 | 2020-03-03 | 魏立江 | Scanning payment method |
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