CN101504469B - Hologram based on Moire fringe technology, and its plate making and identifying method - Google Patents
Hologram based on Moire fringe technology, and its plate making and identifying method Download PDFInfo
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- CN101504469B CN101504469B CN2009100146996A CN200910014699A CN101504469B CN 101504469 B CN101504469 B CN 101504469B CN 2009100146996 A CN2009100146996 A CN 2009100146996A CN 200910014699 A CN200910014699 A CN 200910014699A CN 101504469 B CN101504469 B CN 101504469B
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- moire fringe
- hologram
- holograph
- striped
- grid
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Abstract
The invention discloses a Morie-fringe technology-based holograph, which belongs to the field of holographic anti-counterfeiting technology. The Morie-fringe technology-based holograph is characterized in that the method for making the holograph comprises a substrate which records dynamic Morie fringes into the holograph by a holographic recording method to make the holograph; and the holograph is a white light reconstructed holograph which shows image-text information and the dynamic Morie fringes under a point light source. The Morie-fringe technology-based holograph is simple and quick in verification when used on paper money, bank notes, ID cards, passports, commercial papers, tickets, product labels and product packages. And the possibility of the counterfeit of the holograph of the invention is extremely low.
Description
Technical field
The invention belongs to the holographic security technology field, be specifically related to a kind of hologram and plate-making and discrimination method based on Moire fringe technology.
Background technology
Hologram (Hologram) is to cover primary (Gabor) to propose in 1948.Appearance along with laser instrument in 1962, sharp Leith and Upatnieks has been invented off-axis holography.1969 this (Benton) invented rainbow holography---and be the holography of display light source with the white light, this invention is walked out the laboratory for hologram and is moved towards the gratifying first step that society steps.Because the laser holographic light-sensitive material has high information-bearing ability; Can write down the task that common printed technology such as three-dimensional image, dynamic change image are difficult to accomplish; People are widely used in false proof field to holography; Obtained gratifying achievement, so far, the holographic printing industry is still occupied critical role in false proof industry.
Along with embossed holographic in false proof extensive applications, the holographic plate-making technology also the diffusion.In order to tackle market competition, the holographic plate-making technology is competed between each company.On the one hand, make the holographic plate-making technology be able to develop rapidly; On the other hand, plate-making technology is decoded by other party fast.This just makes merely with plate-making technology is that the holographic product of false proof means is under suspicion on false proof market.
In the at present main holographic false proof and discrimination method, the holographic plate-making technology of differentiating with simple instrument, instrument has:
1. two card techniques of Moire fringe: be hidden in graph text information in one group of striped with certain space frequency and be recorded on the printing carrier; Can utilize the superimposed discriminating of transparent check card that has same space frequency striped during check, serve as to differentiate foundation with the graph text information that utilize the Moire fringe principle to hide at present.Shortcoming is: present technique is decrypted easily, and imitation effect is suitable with legal effect.
2. laser enciphered method: directly note down a width of cloth Fresnel hologram.Can shine hologram area with laser pen during check, serve as to differentiate foundation with the graph text information that on white paper, demonstrate setting.Shortcoming is: in case by counterfeit, be difficult to make real and fake discrimination to details or technical parameter.
3. optical shrink: the mode of Word message with optical shrink is recorded on the hologram, and usual naked eyes are difficult to distinguish, only more than the certain multiple just can be observed particular content under the magnifier.Differentiate that can foundation for to observe micro information.Shortcoming is: the micro information content is not easy to open; Only differentiate that whether micro information to be arranged be certificate, lack further discriminating requirement micro information.
Publication number is that (open day: PCT patented claim 2004.4.29) disclosed a kind of through using Moire fringe to differentiate the method for certificate WO2004/036507; The method comprising the steps of: the certificate and the presentation layer stack that comprises revealing line grating that a) will have the basic unit that comprises pattern; Thereby generation Moire fringe; And b) more said Moire fringe and with reference to Moire fringe and depend on the result of comparison is accepted or the refusal certificate, wherein the continuous lines of the revealing line grating different instances of pattern of in basic unit, sampling; And the Moire fringe that wherein produces is the conversion of basic unit's pattern, and said conversion comprises amplification at least.
Publication number is that the Chinese patent of CN13322330A discloses a kind of verifiable holographic article (1), comprises substrate (5), and substrate comprises at least one hologram (10); And at least one converted image, it can utilize the decoding sampling apparatus (for example Photocopier) that produces aliasing or Moire fringe effect to convert the dominance image into.Article provide " first road " and " second road " anti-counterfeiting characteristic with high cost performance and can obtain checking easy, fast and safely or differentiate.
In theory, the slightly different overlap of grating of two spatial frequencys together, the striped that its difference frequency component forms is exactly a Moire fringe.When there was relative motion in these two gratings, Moire fringe also moved thereupon, and two gratings move one-period, and Moire fringe also moves one-period thereupon.Generally, the cycle of these two gratings of the period ratio of Moire fringe is much bigger.So grating is a little moving a little, Moire fringe just has very significantly dynamic effect.The dynamic mode of dynamic moire fringe is difficult to control, so dynamic More's hologram of making like this just has very big randomness.Its advantage is that imitation difficulty is high, because small grating spatial frequency difference will produce tangible Moire fringe difference; Shortcoming is that dynamic effect is difficult to definite description, and the hologram true and false is assert inconvenient.
The present invention embeds (or hiding) graph text information in forming the grid of dynamic moire fringe, make dynamic More's hologram when manifesting the Moire fringe of dynamic, random variation, can show the graph text information that can clearly describe.
Summary of the invention
The purpose of this invention is to provide simpler, the fast method for anti-counterfeit of a kind of checking, particularly a kind of needs the white point light source to differentiate, based on the holographic plate-making and the discrimination method of Moire fringe principle.The graph text information of hiding is difficult to identification under area source, under pointolite, can clearly observe, and when move left and right is observed, has shape light and shade striped at random moving, changing simultaneously.
Dynamic moire fringe of the present invention is formed in spatial distributions by two grid difference frequency components, notes down through the method for hologram record, and manifesting of Moire fringe only needs pointolite, need not the various cards that manifest.Moire fringe with the viewing angle changes shape appear dynamically, at random variation, when Moire fringe changes, can show graph text information.
The following technical scheme of the concrete employing of the present invention:
A kind of hologram based on Moire fringe technology is characterized in that
The method for making of said hologram comprises mother matrix, and said mother matrix is to record dynamic moire fringe in the hologram with hologram recording method to process;
Said hologram is white light reconstruction hologram (for example: mold pressing rainbow hologram or reflection hologram), under pointolite, shows graph text information and dynamic moire fringe.
Wherein, described graph text information comprises a kind of or its combination in any in literal, letter, numeral, text, the sign.
A kind of holographic plate-making method based on Moire fringe technology; Comprise two grids that are used to produce Moire fringe; Two grids are overlapping and keep certain distance to produce Moire fringe, it is characterized in that, embed (or hiding) graph text information therein on a grid; Record dynamic moire fringe in the hologram with hologram recording method, process mother matrix of the present invention.
Said grid is made up of the light and dark striped with certain space frequency that is recorded on the transparent carrier, and the spatial frequency of two grids is identical with striped or trend is slightly variant.
The method for making of said grid comprises the steps:
1) produces one group of light and dark striped that has the certain space frequency with graphics software on computers;
2) above-mentioned striped is carried out Flame Image Process, produce two groups of stripeds, embed (or hiding) graph text information (described graph text information comprises a kind of or its combination in any in literal, letter, numeral, text, the sign) therein on one group of striped;
3) on transparent carrier, form images, process grid of the present invention.
The present invention can carry out Flame Image Process to the striped of one or two grid wherein, and described Flame Image Process comprises embedding (or hiding) graph text information, is at random or stretching, distortion, the striped overstriking of rule, subtracts a kind of or any multiple combination in thin, the displacement.
Said dynamic moire fringe is formed in spatial distributions by two grid difference frequency components.
Generally speaking, the distance between two grids is that 0.5mm-5mm gets final product.
Hologram discrimination method of the present invention; It is characterized in that; Said hologram shows under pointolite and manifests Moire fringe dynamically, relatively manifests Moire fringe and with reference to Moire fringe, satisfies following condition simultaneously for true: 1) under pointolite, manifest correct said graph text information; 2) shape of stripes is with identical with reference to Moire fringe; 3) under pointolite, observe hologram, striped variability from different spaces.
Said dynamic moire fringe has randomness, dynamic and period of change property, manifests the two Changing Pattern of graph text information and dynamic moire fringe that shows in the Moire fringe and has correlativity (for example: the two period of change is identical).
Described hologram discrimination method is characterized in that, derives from (a) hologram specimen page with reference to Moire fringe, (b) manifests the static images acquired of Moire fringe, (c) manifests the dynamic video images acquired of Moire fringe.
Preferably, said pointolite is the visible light source of L/D >=10.
The application of hologram of the present invention is characterized in that, said hologram is attached to the label on banknote, check, I.D., passport, commercial papers, pass-check, the commodity, the packing of product.
Compared with prior art the present invention has following beneficial effect:
1) the present invention makes full use of the high information-bearing ability that the holographic plate-making material has, enchancement factor in addition, and the possibility by imitated is extremely low in theory to make hologram;
2) discrimination method of the present invention is simple, cost.
Description of drawings
Fig. 1 is a Moire fringe holographic recording optical path synoptic diagram;
Among the figure, 1 is diffuser screen, and 2,3 is grid, and 4 is hologram recording material.
Fig. 2 is the structural representation of grid 1;
Fig. 3 is the structural representation of grid 2;
Fig. 4, the 5th, the Moire fringe synoptic diagram that produces.
Embodiment
Specify implementation method of the present invention below in conjunction with embodiment.
Embodiment:
1) plate-making
Utilize CorelDRAW software, the bar that produces 200/inch is empty than the one group of line segment that is 1: 1.Graph text information is handled (embedding or hiding) and in line segment, formed Fig. 2; With CorelDRAW software random distortion, form Fig. 3 to line segment.Fig. 2,3 is fabricated into processes two grids of the present invention on the transparent silver sensitive material.
Overlapping and the distance that keeps 3mm of two grids is to produce Moire fringe; As shown in Figure 1, on hologram recording material 4, by position a when c moves; Angle from the observer; Be equivalent to grid 2,3 in relative motion, thereby can observe dynamic moire fringe, then with this dynamic moire fringe of hologram recording method record.Make mother matrix according to prior art.
2) mother matrix that makes according to step 1) is processed the white light reconstruction hologram according to prior art.
3) differentiate
Like Fig. 4, shown in 5, Fig. 4, the 5th, dynamic moire fringe be two images in variation.
When the hologram page light source that adopts the present invention to obtain is observed down,, aliasing effect can not differentiate owing to making Moire fringe image and embedding (hiding) information fuzzy; When under pointolite, observing, (hiding) information of embedding can distinguish that obviously double swerve is observed, and has light and dark striped moving, and hiding Info simultaneously is the light and shade variation.
4) use with the hologram that makes be attached to be used on the packing of label on banknote, check, I.D., passport, commercial papers, pass-check, the commodity, product false proof.
Claims (3)
1. holographic plate-making method based on Moire fringe technology; Comprise two grids that are used to produce Moire fringe; Two grids are overlapping and keep certain distance to produce Moire fringe, it is characterized in that, embed graph text information on a grid therein; Record dynamic moire fringe in the hologram with hologram recording method, process mother matrix;
Graph text information comprises a kind of or its combination in any in letter, numeral, the sign;
Said grid is made up of the light and dark striped with certain space frequency that is recorded on the transparent carrier, and the spatial frequency of two grids moves towards identical or slightly variant with striped; Distance between two grids is 0.5mm-5mm;
Said hologram is the white light reconstruction hologram, under pointolite, shows graph text information and dynamic moire fringe;
The method for making of grid comprises the steps:
1) produces one group of light and dark striped that has the certain space frequency with graphics software on computers;
2) above-mentioned striped is carried out Flame Image Process, produce two groups of stripeds;
3) on transparent carrier, form images, process grid.
2. holographic plate-making method according to claim 1 is characterized in that, described Flame Image Process comprises that graph text information embeds and is at random or stretching, distortion, the striped overstriking of rule, subtracts a kind of or any multiple combination in thin, the displacement striped.
3. holographic plate-making method according to claim 1 is characterized in that, said dynamic moire fringe is formed in spatial distributions by two grid difference frequency components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100146996A CN101504469B (en) | 2009-03-13 | 2009-03-13 | Hologram based on Moire fringe technology, and its plate making and identifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100146996A CN101504469B (en) | 2009-03-13 | 2009-03-13 | Hologram based on Moire fringe technology, and its plate making and identifying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101504469A CN101504469A (en) | 2009-08-12 |
| CN101504469B true CN101504469B (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100146996A Expired - Fee Related CN101504469B (en) | 2009-03-13 | 2009-03-13 | Hologram based on Moire fringe technology, and its plate making and identifying method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT511056B1 (en) | 2011-03-07 | 2012-09-15 | Swarovski D Kg | LASER MARKED SUBJECT |
| CN102722095B (en) * | 2011-03-30 | 2015-04-15 | 武汉思臻光信息科技有限公司 | A method and a system for generating holographic interference fringes |
| CN102854788B (en) * | 2011-06-27 | 2015-01-14 | 武汉思臻光信息科技有限公司 | Method and system for generating holographic interference fringes and tag manufactured by method |
| CN102914810A (en) * | 2012-10-11 | 2013-02-06 | 武汉华工图像技术开发有限公司 | Holographic motherboard manufacturing method and hologram based on moire fringe technology |
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- 2009-03-13 CN CN2009100146996A patent/CN101504469B/en not_active Expired - Fee Related
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| CN101504469A (en) | 2009-08-12 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG TAIBAO PREVENTING COUNTERFEIT PRODUCT CO. Free format text: FORMER NAME: TAIBAO ANTIFORGERY TECHNOLOGY PRODUCTS CO., LTD., ZIBO CITY |
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| CP03 | Change of name, title or address |
Address after: Huantai County in Shandong province Zibo City Road 256407 North First less Patentee after: Shandong Taibao Preventing Counterfeit Product Co., Ltd. Address before: 256407, Zibo County, Shandong Province, Huantai County town of fish from the village of four (less sea north head) Patentee before: Taibao Antiforgery Technology Products Co., Ltd., Zibo City |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20160313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |