CN1422759A - Anti-fake packing material, anti-fake mark and anti-fake system - Google Patents
Anti-fake packing material, anti-fake mark and anti-fake system Download PDFInfo
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- CN1422759A CN1422759A CN 01139614 CN01139614A CN1422759A CN 1422759 A CN1422759 A CN 1422759A CN 01139614 CN01139614 CN 01139614 CN 01139614 A CN01139614 A CN 01139614A CN 1422759 A CN1422759 A CN 1422759A
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Abstract
The present invention relates to an anti-false packaging material, anti-false marker and anti-false system. It is characterized by that said invention utilizes a "one-dimensional diffraction pattern", reads said diffraction pattern and compares it with a reference pattern so as to distinguish the true packaging material, card, label, certificate and other similar credentials from the false ones. Said ivnention also provides its product and its anti-false characteristics.
Description
Technical field
The present invention relates to anti-counterfeiting technology, relate to anti-counterfeiting packing material, anti-fake mark and Antiforge system particularly.
Background technology
There have been various holographic false proof security systems once to be described.For example, several holographic bar code system that once was described in the past, this system applies holographic diffraction grating bar, the grating in arbitrary gratings strips includes the distinguishable angle or the gradient of a limited quantity.Single compound diffraction grating of another kind of holographic false proof security system application, this grating includes the special distinguishable spatial frequency element of a limited quantity.Above-mentioned two kinds of systems have all used a spot of photo-detector to go to detect the light intensity of scattering from these diffraction grating, thereby determine that in these limited quantity gratings or the optical grating element which is used on the protected object.Yet unfortunately, the diffraction grating in above-mentioned these systems can be easily by analyzing and imitatedly having the new grating of same characteristic features and palmed off.
The present invention utilize the Chinese patent application examined at present (China Patent No. for _ _ _ _ _ _ _ _ _) so-called " universal hologram recognizer " (the Universal Hologram Reader is called for short UHR) and utilize the novel diffraction structure of can be at any angle being discerned by " universal hologram recognizer " with the position.The file or the packing material that have this novel diffraction structure can be discerned with hand-held " universal hologram recognizer ".
Summary of the invention
The purpose of this invention is to provide a kind of its characteristic and more or less change and the diffraction pattern that remains unchanged along another direction along certain direction, and anti-fake material, anti-counterfeiting packing material, anti-fake mark and system thereof with this diffraction pattern or similar pattern characteristics.
The invention provides a kind of one dimension diffraction pattern, comprise a kind of have along direction change but the Difraction surface of the feature that remains unchanged substantially of direction vertical direction therewith, the microscopic dimensions of this feature at 0.1 micron in 50 micrometer ranges.
Provide that a kind of to indicate the wrappage of the above-mentioned diffraction pattern of genuine piece be another content of the present invention.
The present invention also provides a kind of and can indicate change and along the structure of the pattern of the unconverted substantially surface relief shape of vertical direction of this direction having along a direction of genuine piece.Certainly, the structure of the pattern of this surface relief shape can be the one dimension diffraction pattern.
Advantageously, it is a kind of to wrappage that the present invention also provides, file, certificate, label, coin and similar articles can be indicated the system of genuine piece, have, at wrappage, file, certificate, label, such surface on coin and the similar articles, described surface has an one dimension diffraction pattern, a kind of recognizer, this recognizer its by described when surface with the described surface of light beam directive, and detect and analyze situation of change, and in order to than relatively and judge the device of described pattern and described reference pattern similarity degree with the described pattern of described light and reference pattern by the pattern of the described light of described one dimension diffraction pattern diffraction.
Useful is, the present invention also provides a kind of composite membrane, has the one dimension diffraction pattern of mold pressing, and has been coated with the enhancing reflecting material in mold pressing surface, this composite membrane can be identified device and detect its figure diffraction characteristic along a passage, thereby judges the authenticity and the validity of this film.
Particularly, the present invention more provides the system of a kind of test package material or other products authenticity, this system comprises: provide unique one dimension diffraction pattern to described wrappage and other products, from described one dimension graphic recording diffractive features and used as fixed reference feature, one dimension diffraction pattern on analyzing and packaging material and the other products is so that obtain the actual measurement feature of this pattern, described actual measurement feature is compared with described fixed reference feature, and, when in described passage, on described wrappage or other products, not having because the identifiable difference due to the difference, and described fixed reference feature and actual measurement feature assert that promptly described packing or other products are genuine piece when identical in fact.
In fact, the present invention has used a kind of " one dimension diffraction pattern ", and a specific character more or less changes continuously along axle 120, but along another 100 diffraction pattern that remains unchanged 150, as shown in Figure 1.Such diffraction pattern can obtain by some kinds of methods, but a kind of method eaily is to utilize so-called dot-matrix holographic printer.The dot-matrix holographic printer utilizes the optical coherence principle to generate an infinitesimal optical grating point array, and the characteristic of every bit as grating angle, grating orientation, grating frequency and diffraction efficiency of grating, can be controlled separately so that each point can difference and other point.In the present invention, thereby can make an optical grating point array 160 by a dot-matrix holographic printer is programmed, all row (being parallel to axle 120) are that characteristic identical but polka-dot raster in each row follows variation in this grating array.The every bit that forms like this in the polka-dot raster array (parallel with axle 100) of row is identical, but the characteristic of row and the optical grating point that is listed as is different.Just as shown in fig. 1, row can tilt with row.When this hologram is read by along the line 110, will change by identical order under optical grating point diffraction characteristic online 110 and the not too approaching situation of line 100, and not be subjected to the influence of the shape or the orientation of line.There is no need to read the situation of change of diffraction pattern on the whole hologram, and only need read enough figures so that determine its true and false.
Except that the dot-matrix holographic printer, also available holographic compositor (i.e. " Holocomposer ", U.S. Pat 5138471 is in Granted publication on November 8th, 1992) or a kind of similar device are made the one dimension diffraction pattern.In this case, every bit is a hologram that can produce the sectored light wire harness, and the brightness of each bar light can be controlled separately in these light shafts.
Except that using the system to produce the point that hologram that diffraction grating point maybe can form the sectored light wire harness forms, utilize that a kind of to generate a kind of point range system that ties up the hologram composition of image also be possible.Therefore, the every bit in the same row all is identical, but corresponding point can be inequality in the different lines.DiBitetto once described a kind of like this system in nineteen sixty in its Ph.D paper, can utilize this system to reach the making purpose of one dimension diffraction pattern.
Except that the piece-rate system of utilizing as holographic compositor or dot-matrix holographic printer, utilize to generate at random as the hologram recording apparatus of describing among Fig. 2 that the one dimension diffraction pattern also is possible.Object 200 scattering lasers form so-called object beam 230 among the figure, and this object beam is converged on the line 210 on the holographic recording medium 220 by a cylindrical lens 250.A branch of reference light 240 jljl light 230 are interfered near formation one holographic interference figure straight line 210.In a series of exposure, every sudden and violent optical recording media 220 just by along non-parallel in straight line 210 directions with respect to system in other element move once.The hologram of Zhi Zuoing is after development treatment like this, and its duplicate can be applicable on the wrappage.
When any similar diffraction analysis device scanning of universal hologram recognizer or other as Fig. 1 describes or during the one dimension diffraction pattern of system's generation of being described by Fig. 2, it will read one along this graph position continually varying diffraction pattern more or less.If scanning is carried out along column direction, diffraction pattern is with change in location, if but scanning along unspecified angle, for example can scan any row in the figure to guarantee recognizer along Fig. 1 cathetus 110, can detect whole variations of diffraction pattern.More very important is that the diffraction pattern continuous variation more or less formed " signature " that detects from scanning does not change with the variation of scanning angle basically.Change scanning angle only understand tilt detection to diffraction pattern and on time shaft, stretch or compression should " signature ", but this is easy to utilize the signal processing method repairing.Change scanning angle can change one in " signature " time length or the quantity of sampling, these change and also are easy to utilize the signal processing method repairing equally.Processing procedure common one, two-dimensional bar is exactly an example.
A kind of practical application of the present invention is made the one dimension diffraction pattern for utilizing common wide cut molding apparatus being similar to BOPP (biaxial stretching polypropylene is rare) wrappage patrix compacting, on the mold pressing surface of BOPP, cover again the layer of metal material for example aluminium or high-index material for example zinc sulphide so that increase its reflectivity.The BOPP that handled like this is compound with paper, cardboard or plastic plate as wrappage then.The wrappage made from this material are except that having meticulous rainbow or faint white light scattering outward appearance, and concrete outward appearance depends on the character of one dimension diffraction pattern, can also very easily read the characteristic of diffraction pattern with the universal hologram recognizer.
Another kind of practical application of the present invention is for being coated with for example zinc sulphide of one deck highly reflective material on the film of crossing the one dimension diffraction pattern in mold pressing, information faces with itself and ID card 330 meets then, this card can be swiped the card by the reading head among Fig. 3 317, thereby obtains the diffractive features that it comprises.
The advantage of the diffraction pattern of one dimension described in the present invention is that it is inevitable that the internal characteristics of original figure is forged the difference of the internal characteristics of figure together.An a kind of identification distinguishable extremely small difference with enough resolution.Another advantage of the present invention is to have proposed a kind of holographic identification code, and this yard has not needing to be considered under the situation of its exact position and orientation, just can carry out interpretation and detection.
Brief description of drawings
Fig. 1 represents a kind of one dimension diffraction pattern: its diffraction pattern is being parallel to remaining unchanged between points on any straight line of certain, but changes along parallel any straight line pointwise with another.The point diffraction that the representative of " O " shape array has basic one dimension diffraction pattern feature among the figure.
Fig. 2 has illustrated a kind of method of making the one dimension diffraction pattern, and this method realizes by writing down identical strip hologram array.
What Fig. 3 showed a kind of its file is coated with the certificate of one dimension diffraction pattern than large tracts of land.
Fig. 4 illustrates the method that a kind of usefulness " holographic line dot matrx " is made the point diffraction array with basic one dimension diffraction pattern feature.
Fig. 5 shows a kind of layer structure sectional view, and the substrate stratified material that wherein a kind of film that is loaded with mold pressing one dimension diffraction pattern is in turn laminated to similar paper or thin polymer film forms.
Fig. 6 illustrates the method that a kind of diffraction pattern pointwise that is obtained by a point on the illumination one dimension diffraction pattern changes.In this simple diagram, diffraction pattern is a simple diffraction grating, and its angle of diffraction pointwise changes; Corresponding diffraction pattern is a pair of pericentral bright spot of axle that is symmetrically distributed in, but this axle pointwise rotation.Can use more complicated many diffraction patterns in practice.
Embodiments of the invention are as follows:
As shown in Figure 4, a dot-matrix holographic printer is made an optical grating point array 430 on the glass plate 440 that scribbles photoresist.These are arranged in the row, column mode and the each point that is arranged in any row is identical.The orientation of polka-dot raster and frequency change by the mode of prior design in the different lines, and therefore this variation can be represented a kind of definite information such as title and its lot number of product.Angle 450 and frequency 455 can follow the direction random variation, but every row is identical.
The plate 410 that is coated with photoresist forms an one dimension diffraction pattern on its surface after development treatment.This photoresist sheet at first forms one deck silver conductive layer in the vacuum coating apparatus, put then as carrying out electric deposition nickel in the saddle base yellow acid nickel electrolyte, and this process is electroforming.Utilizing electroforming process to make thick is 125 microns metal nickel plate, strips down and cleans from photoresist sheet then.This metal nickel plate can be carried out repeatedly electroforming processing again, thereby duplicates a plurality of copies.These copies will be installed on the cylindrical roller, and the information faces on the plate is outside, thereby make a mold pressing roll.This roller keeps relative low temperature and presses to heated plastic sheeting by exerting pressure, and by this kind mode diffraction pattern is produced on this plastic sheeting.The information faces of film is again through metallizing or being coated with high reflecting material zinc sulphide to strengthen reflectivity, then with the compound compound package material of making of paper.These wrappage are used to packaging product, take suitable encapsulation technology simultaneously so that when opening the packing of product, and this compound package material will be by havoc.Before taking the packing of product apart, detect the true and false that it is packed with the universal hologram recognizer earlier.
An alternative embodiment of the invention writes down a strip hologram 210 as shown in Figure 2 on photoresist sheet 220, the duplicate record process is made one group of adjacent strip hologram, and each strip hologram all is identical.By above-mentioned disposal route and this hologram of step process and make compound package material.
The method of reading one dimension diffraction pattern information is to utilize the general holographic recognizer of applying for a patent (UHR).Thereby UHR illuminates the diffraction pattern 604 that a bit reveals this point again on the hologram, analyzes this diffraction pattern and moves caused variation 604,614 and 624 with illumination spot along straight line on the hologram surface.Fig. 6 describes along the different pairing diffraction pattern example of point on the straight line 460 of dot-matrix holographic figure shown in Figure 4 surface.Diffraction pattern 604,614 and 624 is with respect to having a pair of point that fixed space frequency diffraction grating Zero-order diffractive center is symmetrically distributed.In the drawings, diffraction pattern has between points rotated about 10 degree relatively, and the grating diffration figure can be with arbitrarily angled rotation and diffraction pattern also expanded size arbitrarily in actual conditions.
On some details of putting into practice the present invention and realization the present invention application, can in the scope that the present invention allows, change.For example, the method for any one dimension diffraction pattern and any making one dimension diffraction pattern all can be used to reach purpose of the present invention.Repeat mechanical mould pressing technology (step-and-repeat mechanicai embossing), micro-machine technology (micro-machining), optical etching technology (photolithography), dot-matrix holographic technology (dot-matrix holography) and interference technique (interferometry) comprising electron beam engraving technology (electronbeam lithography), mechanical scratching technology (mechanical ruling), stepping." diffraction pattern " comprises the figure of all microgram appearance shape sizes between 0.1 micron to 50 microns.One dimension diffraction pattern related among the present invention can be produced in batches by mold pressing and forging type, also can only produce one separately.Its Difraction surface can plating such as aluminium, iridium (iridium) or silver, also can plate one deck high-index material such as zinc paste, zinc sulphide, titanium dioxide; Also can plate one deck low-index material such as Teflon, or simply not plate whatever.
As the substitute of one dimension diffraction pattern, can utilize other figure as by changing surperficial fluorescent substance content or changing surperficial birefringence with one-dimensional characteristic.Changing birefringence comprises and the photopolymer photosensitive material solidified under the polarized light condition and changes curing polarisation of light direction in the mode of one dimension.In this case, must select other recognizer to read the photopolymer surface of birefringenceization, for example, utilize this photopolymer material of polarized illumination and analyze its surface reflection, transmitted light and scattering polarisation of light situation.
Recognizer only needs to detect and to distinguish diffraction pattern and gets final product in proper order.Although detector can be made as the universal hologram recognizer, as long as in fact detector can utilize any principle of operation can reach effective analyst coverage 0.1 to 50 micron surface structure and optical signature.
Claims (6)
1. one dimension diffraction pattern, comprise a kind of have along a direction change but the Difraction surface of the feature that remains unchanged substantially of direction vertical direction therewith, the microscopic dimensions of this feature at 0.1 micron in 50 micrometer ranges.
2. the wrappage that have the diffraction pattern described in the claim 1 that can indicate genuine piece.
3. can indicate change and having of genuine piece for one kind along the structure of the unconverted substantially surface relief shape of the vertical direction figure of this direction along a direction.
4. can indicate the system of genuine piece to wrappage, file, certificate, label, coin and similar articles for one kind, have,
Surface on wrappage, file, certificate, label, coin and similar articles, described surface have an one dimension diffraction pattern,
A kind of recognizer, this recognizer its by described when surface with the described surface of light beam directive, and detect and analyze situation of change by the pattern of the described light of described one dimension diffraction pattern diffraction, and
In order to than relatively and judge the device of described pattern and described reference pattern similarity degree with the described pattern of described light and reference pattern.
5. composite membrane has the one dimension diffraction pattern of mold pressing, and has been coated with the enhancing reflecting material in mold pressing surface, and this composite membrane can be identified device and detect its figure diffraction characteristic along a passage, thereby judges the authenticity and the validity of this film.
6. the system of test package material or other products authenticity, this system comprises:
Provide unique one dimension diffraction pattern to described wrappage and other products,
From described one dimension graphic recording diffractive features and used as fixed reference feature,
One dimension diffraction pattern on analyzing and packaging material and the other products is so that obtain the actual measurement feature of this pattern,
Described actual measurement feature is compared with described fixed reference feature, and
When in described passage on described wrappage or other products not because the identifiable difference due to the difference, and described fixed reference feature with survey feature when identical in fact, assert that promptly described packing or other products are genuine piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139614 CN1282883C (en) | 2001-11-23 | 2001-11-23 | Anti-fake packing material, anti-fake mark and anti-fake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139614 CN1282883C (en) | 2001-11-23 | 2001-11-23 | Anti-fake packing material, anti-fake mark and anti-fake system |
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| Publication Number | Publication Date |
|---|---|
| CN1422759A true CN1422759A (en) | 2003-06-11 |
| CN1282883C CN1282883C (en) | 2006-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01139614 Expired - Lifetime CN1282883C (en) | 2001-11-23 | 2001-11-23 | Anti-fake packing material, anti-fake mark and anti-fake system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127757A1 (en) * | 2015-02-11 | 2016-08-18 | 田艺儿 | Rfid label |
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2001
- 2001-11-23 CN CN 01139614 patent/CN1282883C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016127757A1 (en) * | 2015-02-11 | 2016-08-18 | 田艺儿 | Rfid label |
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| CN1282883C (en) | 2006-11-01 |
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