CN101421118A - Security element with an optically variable structure - Google Patents

Abstract

The invention relates to a security element with an optically variable structure having an embossing structure with linear embossing elements and a coating, wherein the embossing structure and the coating are arranged such that at least parts of the coating can be seen in full when viewing at right angles, but are covered when viewing at an oblique angle. The fact that substantially the entire coating is formed by non-linear base elements which are characterized by the parameters outline, size, colour and orientation and are combined with the embossing structure such that, when the viewing direction is changed, different information becomes visible, can be used to increase the security against forgery of the security element.; The invention further relates to a method for producing such a security element, a data carrier having such a security element and the use of such a security element or data carrier for product security.

Description

Security element with optically variable structure

Technical field

The present invention relates to a kind of Security element with optically variable structure, this optically variable structure has a stamping structure and a coating that has wire impression element, wherein, arrange this stamping structure and coating in this wise, make at least partial coating when right-angle view fully as seen, and when oblique observation, be capped.The invention still further relates to and a kind ofly make this Security element, have the application that the method for data medium of this Security element and this Security element or data medium are used for product false proof.

Background technology

For preventing to copy, especially prevent to utilize color photocopying or other clone method to copy, data medium (such as banknote, marketable securities, credit card, identity card, passport, certificate etc., label, pack or be used for other element of product false proof) is equipped with the optically variable security structure.At this, the optical variable effect that false proof protection can not or only can be reproduced by above-mentioned reproducing unit deficiently based on can visually simply clearly discerning.

For this reason, for example by the known a kind of banknote of CA1019012, this banknote is provided with parallel wire printed patterns (Liniendruckmuster) in its surperficial subregion.For producing optical variable effect, in data medium, in the zone of this wire printed patterns, impress (einpraegen) in addition and go out a kind of linear structure, to produce respectively only visible edge on the certain observation angle.By arranging linear pattern targetedly on the identical edge of orientation, these lines are visible when oblique observation is provided with the edge of these lines, and when the edge of oblique observation rear side, this linear pattern is invisible.If wire grid in the subregion of impression face or impression have sudden change (Phasenspruenge) mutually in the grid, so just can represent thus or only from the first oblique viewing angle, or the information that only can identify from the second oblique viewing angle.

Although this optically variable security element is a kind of strong relatively upset effect for the observer indicates, the parallel wire printed patterns that has the constant line spacing at present can be copied with certain cost by modern reproduction technology.Its shortcoming also is, the wire printed patterns described in the CA1019012 does not resemble to allow to have the coating and enriches details and the exquisite image subject of design.

Summary of the invention

Therefore, the technical problem that the present invention requires to solve is, the Security element that provides a kind of this paper to start described type, this Security element avoided known type Security element shortcoming and improved anti-counterfeiting performance.In addition, the present invention also provides a kind of method that has the data medium of this Security element and be used to make this Security element.

This technical problem is solved by the feature of independent claims.Expansion of the present invention is a dependent claims technical scheme required for protection.

Optically variable structure by Security element of the present invention is formed by coating and with this coating stack stamping structure thereon, and this coating is made of non-wire basic element basically fully.Stamping structure has wire impression element, and described wire impression element makes up in this wise with the coating that is made of non-wire basic element, makes and can see different information when changing direction of observation.At this, non-wire basic element is characterized by parameters such as contour shape, size, color and directions, and combined to produce by hatching effect of the present invention with stamping structure thus.Therefore, in this wise with respect to the non-wire basic element of wire impression arrangements of elements, make to change the customizing messages that changes for the observer who checks Security element produces with direction of observation.

Below, according to Braunstein (Bronstein) Xi Manya Prokofiev (Semendjajew) mathematics handbook, the 25th edition definition that provides is interpreted as connection to 2 with line.Obviously, according to this definition, except 2 straight lines connect be also included within two or three dimensions in 2 non-rectilinear (i.e. bending, wavy, spiral) connection.

By the present invention, this means that wire impression element is understood to be in all three-D elements that meet the line of above-mentioned definition of projection formation in the plane of optically variable element.

The feature of wire impression element is four edges usually, and wherein, described edge has the size of realization by shadow effect of the present invention.That is, described edge must make for the observer who sees towards this edge by such design size, and the information that is positioned at these back, edge is blocked at least in part or covers.

Below, non-wire basic element is interpreted as the element of such its contour shapes of selection all in the two and three dimensions space, makes that it is not a linear device according to the above-mentioned definition of line.Thus, derive from the point of a unique face according to the application's non-wire basic element rather than connect the corresponding geometry of (line) by 2 face.Generally speaking, therefore non-wire basic element can limit and it is characterized by compactness and the not long element that extends.

By adopting the non-wire basic element of any contour shape, size, color and direction, exquisiteness and details design the coating of optically variable structure galore in this wise, make to have got rid of current forgery in practice.False proof protection also is improved as follows by the present invention, that is, whole coating all is made of non-wire basic element.Therefore potential adulterator not only must copy several zones, and will be to copy whole coating with fabulous precision, and this is impossible in current practice.

Except by using having improved the false proof protection through impression by coating of the present invention; also preferably substantially improved to the selection possibility of the theme that is suitable for coating and geometrical pattern and for the structure free degree of described theme and pattern, thereby under the situation of suitable embossing coating, produced remarkable impressive and optically attractive upset effect for the observer.Also can draw authenticity easily thus by " man of the street or woman " by Security element of the present invention.The Security element of forging can following easily identification,, for the coating that designs very exquisitely, can not or only observe theatrical upset effect inherent in the real optically variable structure that is very limitedly.

By using, advantageously also may use the image subject or the geometrical pattern that show by actual color to realize not known so far upset effect in conjunction with the Security element of described type by non-wire basic element of the present invention.At last, another final advantage of the present invention is that the overlapping of the basic element of different colours can be realized the mixed color effect relevant with direction of observation.

Limit its feature by the contour shape parameter on the one hand by basic element of the present invention.At this, can consider total contour shape, this contour shape is non-wire according to the definition that illustrates previously.Although the contour shape of basic element can change in the scope of non-constant width, this basic element preferably has the contour shape of circle, ellipse or polygon ground limited boundary.The polygon that limits in by the present invention is that all are polygon or polygonal basic element on mathematical meaning.The conceptive polygon that is interpreted as in two dimension or the three dimensions.Can consider polygon in view of the above, from triangle until polygon with very big limit number.Under polygonal situation, different quadrangles is such as parallelogram, square, rectangle, rhombus and trapezoidal especially preferred.Obviously, non-wire basic element also can have a kind of at regional area with for example circular or oval limited boundary in other zone the contour shape with the polygon limited boundary.

In addition, except these known geometrically contour shapes, the wire basic element also preferably has a kind of contour shape of being determined by symbol, geometrical pattern and/or alphanumeric character.All can be used as the symbol basic element by laying the non-wire basic element that the used method of coating obtains.For example consider mathematic sign at this, such as integration or evolution symbol or known cross or diesis symbol.In addition, can use character, the especially alphanumeric character of all known composings (Schriftsatz), although be particularly preferred from the character of standard Latin and Greek.In addition, also can determine profile by geometrical pattern (such as snowflake or turn round the contour shape of strand pattern) by basic element of the present invention.

The non-wire basic element that is limited its feature by the contoured shape can suitably have filler, and this filler is preferably implemented on whole basically.Obviously also can consider, cut apart filler, perhaps only determine this basic element and do not have filler thus by the line of fixing this contour shape with (for example putting grid) grid.In this case, can in the interior zone that is not filled of basic element, identify the color that is positioned at the layer (or several layers) below the basic element.

Below, being interpreted as by the size of non-wire basic element of the present invention is its size on one or more directions.Although the size basic element with several millimeters magnitudes may be significant for the application-specific in product false proof field, if basic element but non-wire basic element has the size of 10 μ m to 500 μ m, the especially size of 20 μ m to 250 μ m then is especially preferred.Obviously, improved the false proof protection that has the Security element of optically variable structure required for protection by less size.Therefore, for example especially having, the coating of the basic element size of 30 μ m provides a kind of very powerful false proof protection.Simultaneously, obviously set the size of basic element like this, feasible manufacturing by Security element of the present invention can have high-quality.

With for example opposite by the known coating that has a wire printed patterns of CA1019012, wherein, line size in the vertical obviously surpasses horizontal size, preferably has a kind of contour shape by non-wire basic element of the present invention, wherein, the size on any one direction all is no more than four times of size of other any one direction of basic element.

This that is to say, can when having by basic element of the present invention, realize the impressive especially upset effect of optically variable structure, and make simultaneously by coating of the present invention and have higher design freedom with the little shape of circular, triangle or foursquare contour shape (being compact element) difference.In these bodies, the size on any one direction all is no more than the twice of the size of other any one direction.

Can be printed layers, especially graph brush layer, pin type printed layers, screen-printed layers, aniline printing layer, duplicate layer, ink jet printing layer or thermal imaging printed layers by the coating of forming by non-wire basic element of the present invention.Each described printed layers has the definite characteristic of method that is adopted by it, and these characteristics are conventionally known to one of skill in the art.Therefore selection to specific printed layers depends on the color of drafting use, desirable stamping structure, resolution ratio, predetermined picture theme on the one hand, or the like.

In addition preferably, if the coating of being made up of non-wire basic element is by laser printer or the layer that produced by the laser emission effect of laser instrument.At this,, consider CO according to the material difference of the basic unit that is used for optically variable structure ₂Laser instrument, Nd:YAG-laser instrument or at the radiation source of other laser type of ultraviolet ray (UV) to infrared ray (IR) wave-length coverage, wherein, laser instrument is often also worked with frequency multiplier, frequency three multipliers or bigger frequency four multipliers.But, the preferred use near ultrared lasing light emitter is because this wave-length coverage is complementary with the absorption characteristic that is the material of optically variable structure setting well.Because the spot size of laser emission can change in several millimeters according to not coexisting several microns of applicable cases, so advantageously produce by the use of laser emission by basic element of the present invention.The continuous power of the laser instrument of Cai Yonging is usually between several watts and a few hectowatt for this reason.

Can constitute by the non-wire basic element of any layout in principle by coating of the present invention.Therefore, except complete random layout, also be possible according to the layout of the form of for example fractal pattern.But, especially preferred is that the non-wire basic element of at least a portion is arranged in a kind of grid of preferred cycle.Lattice-shaped by basic element is arranged the preferred orientations that defines coating, and this coating is causing impressive especially upset effect when combined with suitable stamping structure.Not to be that lattice-shaped is arranged in be possible to remainder in principle although only a part of non-wire basic element is that lattice-shaped is arranged, but especially suitable is, all basic elements that constitute coating all are the lattice-shaped layout, especially are periodic lattice-shaped and arrange.

With basic element is to arrange irregularly or in grid irrelevant to be, the basic element of different colours can be overlapping and be produced secondary colour in the overlapping region, and wherein, the colour mixture layout in the overlapping region itself is the anti-counterfeiting characteristic of coating also.

According to a kind of preferred form of implementation regulation, the non-wire basic element of each at least two different colours is according to the arranged in form of colored basic element.At this, be the color in the basic color scheme arbitrarily but preferably in principle to being chosen in of the color of colored basic element and basic element type.By using colored basic element, can represent exquisiteness and details abundant image theme and geometrical pattern, or the like.

But the layout of colored basic element also fully irregularly, realize with the form of fractal pattern or with these two kinds combinations of arranging possibilities.But especially preferredly be, if the colored basic element of at least a portion is arranged in the especially periodic grid.This layout is particularly suitable for representing coloured image and similar theme.Obviously also can consider a large amount of colored basic elements are arranged in the grid, and coating has simultaneously irregularly or is the non-wire basic element of arranging equally grid-likely.

Although basic element or colored basic element can be arranged in the grid of variable grid width, specially suitablely be, if the grid width of grid is constant for a part or the whole coating of coating.The regular arrangement of Shi Xianing defines one or more preferred orientations of being coated with in the layer plane and combined and be that the observer brings tangible upset effect with the stamping structure of corresponding layout thus.

The coating of being made up of non-wire basic element or colored basic element can comprise the basic element of random color.But especially preferred is the interior basic element of basic color scheme.In addition, require coating to have to have the colored basic element of non-wire basic element, described non-wire basic element has the color in the basic color scheme.At this, can adopt and utilize above-mentioned printing technology to make coating apply all basic color schemes that are achieved optically variable structure.But especially preferredly be basic color scheme RGB (red, green, blue), CMY (cyan, carmetta, yellow) and CMYK (cyan, carmetta, yellow, gray color (black)).

Specially suitablely in addition be, if optically variable structure has a plurality of colored basic elements, described a plurality of colored basic elements show colored image subject and/or geometrical pattern when right-angle view, and its eye impressions change along with the change of viewing angle.The colored basic element of represent images theme or pattern can have the non-wire basic element of random color or the element of the color in the basic color scheme.As mentioned above, can be by the suitable impression by coating of the present invention being produced the image subject that exquisiteness and details design galore, described image subject when overlooking basically fully as seen, along with the change of viewing angle since shadow effect only have partly as seen.

In a kind of particular implementation form, colored basic element is corresponding with the picture point of image subject and/or geometrical pattern, is equipped with the particular color composition of color system for described picture point.Colored basic element has the non-wire basic element of the colour plane that has the color in the color system, and wherein, the size of the colour plane of non-wire basic element is corresponding with the relevant color composition of picture point.Therefore the observer produces color impression to colored basic element according to versicolor size.Described can be directly adjacent to each other, perhaps keeps a specific interval each other, makes that the color impression of colored basic element is final also together to be determined by the color from the light of background reflectance.Therefore, according to this specific form of implementation, can be with true colors presentation video theme and geometrical pattern, wherein, the number of image points of image subject or pattern is simultaneously corresponding with the number of colored basic element.At this, should be noted that as long as the size of colour plane is under observer's the visual resolving power, the true colors of colored basic element just produces as the secondary colour of the non-wire basic element that constitutes colored basic element when overlooking.

According to another decision design of Security element, at least two grid composing images themes forming by the non-wire basic element of each a kind of color and/or geometrical pattern.The non-wire basic element overlaid of different grids and the zone that produces secondary colour have therein been determined by the layout of grid.In order to produce the secondary colour of determining as far as possible in the overlapping region, the non-wire basic element with very definite contour shape and the filler on whole is particularly preferred for constituting grid.Obviously, grid can comprise the basic element of the color of basic color scheme, thereby the secondary colour that produces in the overlapping region is again the very definite secondary color (Sekundaerfarben) that loses lustre and mix.Because used grid not exclusively blocks base material usually, so in the non-occluded area of basic unit, the light reflection can take place.The overlapping region that reverberation and losing lustre mixes finally produces the observer (automatic type) felt adds the mixture of colours.

Also especially advantageously, if the basic element of region overlapping is corresponding with the picture point of image subject and/or geometrical pattern, set the particular color of color system for described picture point, and the secondary colour of the basic element of region overlapping is corresponding with the relevant color of picture point, and feasible color impression to image subject and/or geometrical pattern changes along with the change of viewing angle.In this case, therefore the picture point of theme or pattern is represented by mixing the secondary colour that produces by losing lustre.According to the difference of grid overlapping region, finally also, the observer adds the mixture of colours for having produced in certain degree by light from base course reflection to the coverage extent of basic unit.

As long as non-wire basic element or colored basic element are arranged to the form of grid, so just in being coated with layer plane, determine at least one preferred orientations by the regular arrangement of this basic element or colored basic element.Especially preferredly be, on the direction of at least one preferred orientations, arrange wire impression element at least in part, make that eye impressions change with direction of observation when the observation of the zone that is provided with stamping structure being carried out perpendicular to this at least one preferred orientations.Expression just, when preferred orientations was arranged, the appreciable upset effect of observer showed especially when viewing angle changes especially at the impression element.In addition, when the zones of different of coating was provided with respectively along impression element that preferred orientations is arranged, the upset effect especially made us with deep impression.Preferred orientations itself can by contour shape and/or basic element or colored basic element in grid layout and cause.Therefore, preferred orientations can be determined by arranging the contour shape that also passes through the basic element of formation grid simultaneously.

Optically variable structure can have additional information, and described additional information is produced by the variation of coating and/or stamping structure.Additional information can identify from one or more direction of observations.Also possible is that additional information angle according to the observation carries out the transition to second, third additional information etc.

Additional information can be for example variation (such as offsetting, grid wide variety, omission, the one or more non-wire basic elements of mirror-image arrangement) by shape, color and/or the layout of non-wire basic element produce.And additional information can have the information that makes the optically variable element personalization in coating, such as alphanumeric character or bar code.

Although can comprise the wire impression element of any layout by the optically variable structure of Security element of the present invention, especially preferred is to be the impression grid form with a grid width if impress arrangements of elements.At this, the grid width of stamping structure can be consistent with the grid width of coating grid.If the grid width of coating and stamping structure is also inequality, but differs certain value, so just produced the interesting beat effect (Schwebungeffekt) that depends on direction of observation.

Additional information preferably also can impress shape, size, the height of element and/or arrange that the variation of (such as offsetting, grid wide variety, the one or more wire impression of omission elements) produces by wire.The additional information that produces owing to the variation of stamping structure changes by coating the time and further strengthens.

Stipulate that in another kind of decision design optically variable structure is divided into the plurality of sub zone, in described subregion, be furnished with different sub-stamping structures and/or sub-coating.As long as the wire of stamping structure impression element or non-wire basic element are arranged with the grid form with a grid width, produce suitable design so thus, that is, the part of subregion structure or sub-coating offsetting grid width at least two subregions that adjoin each other, especially 1/3rd ground are arranged.In addition, be identification better, the parton stamping structure also can have the not edge contour of impression.

About the arranged in arrays and the generation of additional information in stamping structure or coating of this seed stamping structure, quote WO97/17211 and WO02/20280A1 clearly at this.

Constituted a kind of Security element that is difficult to copy by optically variable structure of the present invention, and can directly be arranged on the arbitrary data carrier.But, optically variable structure also can be the part of Security element, and this Security element also has other anti-counterfeiting characteristic except optically variable structure.

Security element can for example have another color layer in the zone of optically variable structure, described color layer is preferably translucent, and is congruent to the relief area ground layout of stamping structure.Also has different forms of implementation at this.Some forms of implementation for example illustrate in WO2004/022355A2 that it is quoted at this equally clearly.

According to another kind of form of implementation, Security element can have other layer and authentication feature, such as metal level, metallic effect layer, additional translucent optically-variable layer or paper tinsel layer elements.This layer and element can fold on the optically variable structure or under.Obviously, impressing the combined layer of element with wire also can be this metal level, metallic effect layer or optically-variable layer.

At last, the color layer arranged of coating or the relief area ground that is used to produce the process color of basic element and colored basic element and/or be congruent to stamping structure also can be equipped with machine readable characteristic at least in part.For this reason, can consider for example magnetic, conduction, luminous annex.And, can advantageously use and in particular range of wavelengths, (be preferably in UV or the IR scope) annex that absorbs.

Preferably be located on the data medium (such as security document and marketable securities, for example banknote, stock, bond, license, proof, credit card, identity card, passport or analog) by optically variable structure of the present invention or by Security element of the present invention.Even data medium is equipped with the Security element that the ordinary people also can identify by this way, to improve false proof reliability.But, also described optically variable structure can be used in the product false proof field highly beneficially or by Security element of the present invention.At this, optically variable structure and Security element can be located at label or packing or goods originally on one's body.

If with paper as the data medium material, the material of so especially suitable is cotton-imitation parchment (Baumwolle-Velinpapiere), the similar paper made by plastic foil, with the paper or the multilayer materials of plastic sheeting coating or coating.

For making, preferably at first set the coating of forming by non-wire basic element, and relative subsequently this coating keeps aligning ground (registerhaltig) to produce stamping structure for any basic unit by Security element of the present invention or optically variable structure.But also may carry out described method step in principle with opposite order.Coating preferably is printed or is reproduced in this basic unit with heat-transferring method at this.This coating can be with printing process arbitrarily, for example produces with lithographic printing (as the offset printing method), letterpress (as protruding impression method or flexography printing method), serigraphy, intaglio printing (as photogravure or cut printing) or with a kind of thermal imaging method.In addition, coating preferably can be produced by laser printer or the effect by laser emission.

For producing stamping structure, can consider any method equally.Stamping structure preferably produces by coining tool, and described coining tool for example can be a gravure engraving (Stichtiefdruckplatte).At this, impression produces as blind blocking (Blindpraegung) by (farbfuehrend) engraving of no color indication.But according to a kind of special preferred implementing form, stamping structure also can produce with the cut printing of color indication.This manufacturing changes the form of implementation of especially having considered to be provided with another color layer with being congruent to stamping structure.

For making coining tool, for example with graver or laser milling plate surface.Can adopt any materials as the plate surface, for example copper, brass, steel, nickel or analog.The graver that is used for milling preferably has the tooth angles of about 40 degree and near the tip of the rounding of ball section or ball sector.Coining tool can be used as that single uses or as repeatedly making the land used milling at this.

On the principle, the order of two method steps can freely be selected.Usually at first laying coating impresses then.Kept the relief height (Reliefhoehe) of impression and other factors that moulding is not subjected to for example to occur in printing process subsequently to influence thus.

Different with it is, promptly at first impresses and lays coating then, and this also provides the higher color brilliance and the advantage of the printed matter of profile more clearly.Therefore this effect is meant in moulding process carries out calendering to basic unit simultaneously, and therefore obtains surface smooth and that adsorption capacity is little.

In addition, the advantage of laying coating before impression is, coating can only be arranged in the edge of impression element and only in the summit/peak (Amplitude) that impresses element.Can realize a kind of especially impressive shadow effect thus.With wherein impression and coating lay carry out simultaneously and coating only can be arranged in the cut printing of the color indication in the zone of summit/peak (Amplitude) of impression element opposite, the method step that impresses and lay coating separately opened an appearance surplus (Gestaltungsspielraum) that yardstick is much bigger.Especially a kind of method enforcement of at first in basic unit, arranging coating and producing stamping structure subsequently with high quality of fit, make coating can only be arranged in selectively on the impression element edge, and the summit and the peak (Amplitude) of impression element do not have coating.In the summit/peak (Amplitude) or the edge placement coating of impression element, comprised the disclosure of WO97/17211 about only in this application.In addition, also can draw coating by the application's description of drawings and go up other details and the advantage of selectively arranging at edge and summit/peak (Amplitude).

Description of drawings

Explain advantage of the present invention by following form of implementation and accompanying drawing.Described detailed features and following form of implementation itself are creative, and their combination also is creative.Described example is represented preferred form of implementation, but the present invention should not be confined to these examples in any form.Ratio shown in the figure is not corresponding with the actual ratio relation, and is only used for improving clarity.Specifically schematically show in the accompanying drawings:

Fig. 1 presses data medium of the present invention,

Fig. 2 is along the cross section of the line A-A among Fig. 1,

First kind of vertical view of Fig. 3 by coating of the present invention,

Second kind of vertical view of Fig. 4 by coating of the present invention,

The third vertical view of Fig. 5 by coating of the present invention,

The 4th kind of vertical view of Fig. 6 by coating of the present invention,

The 5th kind of vertical view of Fig. 7 by coating of the present invention,

The 6th kind of vertical view of Fig. 8 by coating of the present invention, this coating is a kind of distortion of coating shown in Figure 7,

Fig. 9 has the vertical view of the stamping structure of wire impression element,

Figure 10 has the another kind of the non-wire basic element of arranging according to grid form by coating of the present invention,

A kind of perspective view of Figure 11 by optically variable structure of the present invention, this optically variable structure is made of stamping structure of representing among Fig. 9 and Figure 10 or coating,

Figure 12 has the another kind of stamping structure of non-wire impression element,

Figure 13 has the another kind of the non-wire base components of arranging according to grid form by coating of the present invention,

The another kind of perspective view of Figure 14 by optically variable structure of the present invention, this optically variable structure is made of stamping structure of representing among Figure 12 and Figure 13 or coating,

Figure 15 has the another kind of three kinds of dissimilar wire basic elements by coating of the present invention, and described non-wire basic element is pressed grid form and arranged,

Figure 16 as shown in figure 15 by coating of the present invention, marked the trizonal preferred orientations that is used for coating,

Figure 17 a is another kind of, and this coating has the non-wire basic element of grid-like layout by coating of the present invention,

Coating shown in Figure 17 b Figure 17 a has three preferred orientations that mark and the schematically stamping structure of expression corresponding with it,

Figure 18 a is another kind of, and this coating has the non-wire basic element of grid-like layout by coating of the present invention,

Three preferred orientations that Figure 18 b is provided by the grid-like layout shown in Figure 18 a,

Figure 18 c is another kind of, and this coating has the colored basic element of grid-like layout by coating of the present invention,

Three preferred orientations that Figure 18 d is provided by the grid-like layout shown in Figure 18 c,

Figure 19 has the another kind of colored basic element of grid-like layout by coating of the present invention, and wherein, this coating has additional information,

Figure 20 is according to the partial section of the theme in the artwork master shown in Figure 1,

Figure 21 is with by the partial section shown in Figure 20 shown in the form of the coating of non-wire basic element of the present invention, as to have grid-like layout,

Figure 22 presses partial section coating form of the present invention, shown in Figure 20 according to another kind,

Figure 23 has the another kind of the colored basic element that grid form arranges by coating of the present invention,

Figure 24 has the preferred orientations that provided by grid and the vertical view of the coating shown in Figure 23 of the impression element arranged along described preferred orientations,

Figure 25 partial cross section shown in Figure 20 and the preferred orientations that is used to arrange wire impression element,

Figure 26 has and is used to arrange that wire impresses another theme of a plurality of preferred orientations of element,

Figure 27 has another stamping structure of wire impression element,

The another kind of non-wire basic element of pressing coating of the present invention and arranging of Figure 28 according to grid form, wherein, the non-wire basic element of different grids is partly overlapping,

Figure 29 a is another kind of by coating of the present invention, and three preferred orientations of the overlapping basic element of different colours and coating,

Shown in Figure 29 b Figure 29 a by coating of the present invention, and be arranged in additional information in this coating,

Shown in Figure 29 c Figure 29 a by coating of the present invention, and be arranged in other additional information in this coating,

Figure 30 is another kind of by coating of the present invention, and has marked and the not corresponding direction of the preferred orientations of described coating,

Figure 31 has the cross section of the stamping structure of additional information,

Figure 32 has the cross section of another stamping structure of other additional information,

Figure 33 has the cross section of the stamping structure of the impression element in the grid that is arranged in big grid width,

The cross section of the different wire impression of Figure 34 a-34p element,

Figure 35 a presses the cross section of data medium of the present invention before impression,

Figure 35 b presses the cross section of data medium of the present invention behind impression,

Figure 36 a presses the cross section of another data medium of the present invention before impression,

Figure 36 b is by the cross section of another data medium of the present invention behind the impression that color is carried out with indicating.

The specific embodiment

Fig. 1 shows by data medium 1 of the present invention, and its form is the banknote that has optically variable structure 3, the zone that this optically variable structure is positioned at the print image zone 2 of data medium 1 and does not have printing.By the present invention, optically variable structure 3 is as the so-called Artificial Cognition's feature except the further feature that is used for specified data carrier authenticity where necessary, and promptly being used as can be by the people in the feature that does not have to check under the situation of supplementary means.Be especially significant under the situation that is arranged on banknote of this feature, but also be significant equally under the situation of other marketable securities (such as stock, check etc.).Label, passport, card also are considered the data medium on the meaning of the present invention, at present for example they are used for the identity authentication of personnel or goods or are used to conclude the business or service is provided.

Optically variable structure 3 can have different structures, and this interrelates with the different-effect of seeing from different direction of observations by its generation.According to a kind of preferred implementing form, optically variable structure 3 is made up of the monochrome or the secondary color coating that compare with the data medium surface, as pattern, image or alphanumeric information, they by printing technology or otherwise (for example by printing transferring method or the effect by laser emission) produce.By with the interactional stamping structure of coating, according to the structure of coating and stamping structure and corresponding relation different mutually, produce a kind of can be used for validity check by effect of the present invention.

By all optically variable structures of the present invention is general, promptly, described optically variable structure and can not copy by present known reproduction technology, especially duplicator by its effect that causes, because duplicator only can be from a view direction reproduction optical varistructure, thereby has lost optical variable effect.In addition, in any case imitated can also can the failure because of the too small resolution ratio of copying equipment.

Explain the example of different preferred implementing forms of the present invention below in conjunction with accompanying drawing.For understanding better, the expression in the accompanying drawing is extremely schematic, does not reflect truth.

For understanding better, the form of implementation that illustrates in the example has below only stayed main core information.When reality is implemented, can adopt the pattern of quite complicated monochrome or colored printing or image as coating.This itself is applicable to stamping structure.The information of representing in the following Example can be replaced by exquisite arbitrarily image or Word message equally.For example the coating as folder produces the possibility that has made full use of various printing technologies usually.The typical sizes of non-wire basic element is about 10 μ m.The wire impression element that constitutes stamping structure generally has in the scope of 10 μ m to 250 μ m, the preferred impression height in the scope of 50 μ m to 120 μ m.Each embodiment is not limited to application in the described form yet, but can be for improving the combination mutually of described effect yet.

And, only represented the layout and the mutual corresponding relation of stamping structure and coating in the following Example, so that can represent optical effect intuitively by optically variable structure of the present invention.

Example 1 (Fig. 2 to Fig. 4 and Figure 34)

Fig. 2 shows the schematic sectional view of A-A (see figure 1) along the line, and show a kind of optically variable structure with Fig. 3 and Fig. 4, stamping structure 4 is made of the even wire impression element 5 of regular arrangement in this optically variable structure, promptly is constructed to periodically wire grid.Wire impression element 5 is provided with coating 7, and this coating is designed to the colour of non-wire basic element and arranges.The single colour plane of non-wire basic element is positioned on the edge of wire impression element.Being configured in the cutaway view obviously as seen of the projection that the conduct of wire impression element 5 preferably produces by the embossed data carrier at the upside of data medium.If utilize coining tool that data medium mechanically is out of shape, the downside of data medium is just expressed negative distortion so.In this only schematically expression distortion.The data medium rear side in no case has so strong impression and the impression consistent with making ide.In addition, only be illustrated as understand the present invention the upside or the front side of requisite data medium, as the observer in the data medium of when direction of observation AU overlooks, experiencing.The distortion of downside or rear side is not main points of the present invention, and only is the accompaniment of specific stamping technique (for example cut printing).But, they also can be as other authentication feature.

In Fig. 3 and Fig. 4, at length show by coating 7 of the present invention.As shown in Figure 3, coating 7 is made of the non-wire basic element of arranging according to grid form usually 8 and 13. Element 8 and 13 has different colors, and this different fillings by the ring-shaped article of formation basic element 8 and 13 characterizes.Except the basic element that has the circular contour shape shown in Fig. 3, figure 4 illustrates two kinds of basic element other contour shapes.The profile of basic element 13 is cross of symmetry, and the profile of element 8 then is equivalent to star, and this star especially also can be understood as special decagon.At this, the element 13 among Fig. 3 and Fig. 4 is offset half grid width with respect to element 8 along the direction 17 of extending from bottom to top among Fig. 3.And on one that be not shown specifically in Fig. 3 and Fig. 4, direction perpendicular to direction 17, non-wire basic element 13 is arranged with respect to basic element 8 skew ground.

The preferred orientations of pointing to from bottom to top among Fig. 3 17 is determined by the grid-like layout of basic element 8 and 13.The wire impression element of stamping structure can be arranged along this preferred orientations 17, so that finally draw in Fig. 2 the structure of representing with cross section of forming by coating 7 and stamping structure 4, up to utilizing the impression element to impress basic element 8,13 in this wise, make this basic element roughly about impressing the center symmetry of element.Shown in Figure 34 d,, also must in basic unit, produce the wire impression element 5 that has semi-circular cross-section in order to realize structure shown in Figure 2.

In order to obtain strong upset effect, can select a kind of cross section shown in Figure 34 c or 34h for the impression element.The upset effect is also further by selecting the profile shown in Figure 34 a, 34b or 34f to obtain reinforcement.In addition, also can be advantageously that other the cross section and the coating 7 of impression element shown in Figure 34 is combined.

As by Fig. 2 and Fig. 3 easily as can be known, to by in the overlooking of optically variable structure perpendicular of the present invention, the whole coating that is made of basic element 8 and 13 is visible.On the contrary, along with direction of observation changes to oblique observation from direction B from overlooking (AU), be arranged in the basic element 8 domination visual patterns on the edge of wire impression element 5, be arranged in basic element 13 on other edge of wire impression element 5 and then partly or fully be stamped element 5 and cover (blocking).From the oblique viewing optics varistructure of direction C the time, basic element 13 domination eye impressions, and basic element 8 is completely or partially blocked.If wire impression element 5 is not a linearity as shown in Figure 3, but has waveform or curved shape, so thisly work in a similar fashion by the intrinsic basic principle of optically variable structure of the present invention.Only be used to schematically illustrate for schematically illustrating this impression line shown in Figure 46.Obviously, also can in background, impress out complex pattern, for example spiral pattern.

Below in conjunction with Fig. 5 to Fig. 8 further describe other by coating of the present invention.Coating 7 among Fig. 5 has the basic element 8,9 of different colours, and their contour shape is corresponding to " L " shape of a symmetry.At this, basic element 8 and 9 is arranged in the grid of rule in this wise, makes a basic element 8 combined with a basic element 9 respectively.Therefore basic element 8 and 9 constitutes colored basic element 52 respectively in couples, also will further specify this below.

The another kind that figure 6 illustrates coating 7 changes.Coating 7 is formed at this non-wire basic element 8,9,13 by regular arrangement, and they have the contour shape of arcuate member respectively.At this, basic element has occupied the position of the grid with constant grid width.

But also possible is that as shown in Figure 7 and Figure 8, basic element has a kind of complementary in this wise contour shape of basic element of and adjacent layout,, obtains the complete basically surface of coating 7 that is.As shown in Figure 8, at this, described element also can be arranged like this under identical contour shape, make to produce additional information in coating.

Understand by optically variable structure of the present invention in detail in conjunction with Fig. 9 to Figure 14.Figure 9 illustrates the stamping structure of forming by the wire impression element 5 that has triangular cross section 4.Each impression element 5 has four edges, and they protrude in the plane that is formed by basic unit.With Reference numeral 5a and 5b sign, two edges in impression element 5 ends are then represented with Reference numeral 5c and 5d in Fig. 9 at the edge of the longitudinal extension of shape impression element 5 along the line.The layout of wire impression element 5 based on the grid width of grid identify with x.

Figure 10 illustrates coating 7, this coating and stamping structure shown in Figure 9 combination and produce optically variable structure shown in Figure 11.Coating 7 is formed by having differently contoured and two types non-wire basic element different colours.Basic element 8 has the contour shape of the Polygonal Boundary of rectangular form.And each basic element 9 has square contour shape, and its area is area only about half of of basic element 8. Basic element 8 and 9 is arranged on the position of grid at regular intervals. Basic element 8 and 9 has constituted a colored basic element 52 that is arranged in the grill unit 12 jointly respectively.The grid width x of coating 7 is equivalent to the grid width x of the stamping structure 4 of Fig. 9.

If be provided with accurately registration of the basic unit of coating 7 and stamping structure shown in Figure 94, so just produced combining structure shown in Figure 11.Though the whole coating 7 of perception visually in the vertical vertical view of structure shown in Figure 11 from the oblique observation of direction B the time, only perceives the grid of non-wire basic element 9 on the edge 5b of impression element 5 basically and arranges.On the contrary, only can see basic element 8 on the edge 5a of wire impression element 5 from direction of observation C.In the layout of basic element shown in Figure 11 9 on the basis at each edge 5, if the basic element viewing angle is overlooked (AU Fig. 2) from perpendicular and changed to from direction B and observe, be arranged in the impression element 5 that basic element between a plurality of wire impression elements 5 was placed adjacent to edge 5b in 90 minutes apace and block.Because basic element 8 is arranged on the other hand like this, make edge 5a that they can be positioned at impression element 5 on peak (Amplitude) 20, thus these basic elements since the impression element be changed to less intense blocking when observing and can be at the edge 5 see observing in a wide angular range to overlook from direction C is oblique from perpendicular.

The stamping structure 4 that changes with respect to structure shown in Figure 9 has been shown among Figure 12.This stamping structure comprises the wire stamping structure 5 that extends along first preferred orientations 16.Vertical with it is arranges three other wire impression elements 15 along second preferred orientations 17.The grid width of impression element 5 is x, and the grid width of impression element 15 is y.Under the situation herein, grid width x and y are big equally.

Figure 13 illustrates by coating 7 of the present invention, coating 7 is made of the grid-like layout of non-wire basic element 8 and 9, and wherein, two kinds of basic elements have the contour shape of square boundary and different colors. Basic element 8 and 9 has constituted the colored basic element 52 that is located in the grill unit 12 again.The combining structure that has been combined to form perspective ground expression among Figure 14 of stamping structure 4 shown in Figure 12 and coating shown in Figure 13 7.Provide specifically and the diverse image shown in Figure 11 from the observation of direction B and C, because wire impression basic element 5 and 15 is arranged along two preferred orientations.Can only see the basic element 8 that is located on the edge 5a basically from direction C, can only see the basic element 9 that is located on the edge 5b, as long as described basic element is not blocked by adjacent separately impression element from direction B.

On the other hand, element 8 can be seen, element 9 can be seen from direction E from direction D.And the layout of basic element on each edge of impression element is influential to the colour upset effect of this structure.

Example 2 (Figure 15 and Figure 16)

Figure 15 and shown in Figure 16 comprise the non-wire basic element 8,13,39 of three types different colours by coating 7 of the present invention, they are respectively according to the arranged in form of the grid with constant grid width.In addition, basic element 8,13,39 is printed on respectively in the basic unit that is not shown specifically like this, makes them constitute a colored basic element 52.Corresponding to the regular arrangement of single basic element, colored basic element 52 is also arranged according to the grid form with constant grid width.At this, a colored basic element 52 is arranged respectively in the grill unit 12 of grid.The regular arrangement of the colored basic element 52 that obtains like this shown in be divided into three sub regions A, B, C in the preferred implementing form.Each subregion is provided with the unshowned stamping structure of being made up of wire impression element 54.The direction of stamping structure 4 is parallel to the preferred orientations of grid in each sub regions, wherein, only identified a preferred orientations, and be used to provide the direction of stamping structure for each regional A, B, C in Figure 16.But, under the situation of above-mentioned optically variable structure, for the impression of Figure 15 and coating 7 shown in Figure 16 produces a kind of optical variable effect that depends on direction of observation.Although the observer can see whole coating 7 when overlooking, produced for single regional A, different, the significant upset effect of B, C, because stamping structure has different orientations separately in these zones for any other oblique direction of observation.

Example 3 (Figure 17 a, Figure 17 b, Figure 18 a and Figure 18 b)

Constitute at the circular basic element 8,9 and 13 of the coating 7 shown in Figure 17 a and Figure 17 b by three different colours, they also define a colored basic element 52 that is positioned at the grill unit 12 of regular grid.Then, limit preferred orientations, impress along these preferred orientations by the layout of basic element 8,9 and 13.In Figure 17 b, identify preferred orientations 16,18,19, and schematically express stamping structure 64 along preferred orientations.The cross section of wire impression element is leg-of-mutton and corresponding to cross section shown in Figure 34 a.Stamping structure 64 has peak (Amplitude) or summit 20 and the recess between them 21.Therefore, non-wire basic element 8 and 9 is on the edge that is positioned at non-wire impression element when 16 pairs of coatings 7 of preferred orientations impress, and basic element 13 then is positioned on another edge of this impression element.

If select the size of basic element 8,9,13 like this, make them no longer be distinguished as element separately, so just for forming a visible secondary colour in overlooking by basic element 8,9 and the 13 colored basic elements of determining 52 by human eye.The observer covers the secondary colour that the color felt by the secondary colour of colored basic element 52 and the set substrate surface thereon of coating produces according to the area of the colored basic element 52 in the grill unit 12.When a direction different with vertical overlooking (AU Fig. 2) is observed, at the secondary colour that produces along the color of observing in the zone of the wire impression of direction 16 on the edge of impression element by the color of basic element 8,9 and substrate surface.

In contrast, on another edge of impression element, feel the secondary colour of forming by the color and background color of basic element 13 in the opposite direction from side therewith.By Figure 17 b as seen, when preferred orientations 19 impresses, the secondary colour that produces for each edge of impression element changes.In this case, when observing an edge, produce the secondary colour of forming by the color and the background color of basic element 8,9 and 13.The secondary colour of feeling at opposed edge is then determined by the color and background color of other spacer element 8,9 and 13.

Shown in Figure 18 a another by coating 7 of the present invention, wherein leg-of-mutton basic element 8,9 and 13 leg-of-mutton arranged in form according to bigger rule.Basic element 8,9 and 13 layout define the colored basic element in each grill unit 12 of grid again.With respect to colored basic element 52 shown in Figure 17 a, colored basic element shown in Figure 18 a is characterised in that the bigger area of background is covered.Therefore, the color impression can be when overlooking felt from grill unit of observer to a greater degree by the basic element 8,9 of triangle and 13 in other words the inherent colour of colored basic element determine.In addition, these basic elements have defined in the plane of coating 7 again in Figure 18 b with Reference numeral 16,18 and 19 preferred orientations of representing.If impress along preferred orientations, so just produced the color upset effect that extremely relies on direction of observation with the impression element that has sharp-pointed profile (for example profile shown in Figure 34 a, Figure 34 b or Figure 34 f).As long as adopt for example color of basic color scheme CMY for basic element 8,9 and 13, so just produce the secondary colour that is essentially grey for colored basic element 52 for coating 7 when overlooking, this secondary colour also lightens by for example inherent colour of white of basic unit.

Example 4 (Figure 18 c and Figure 18 d)

In Figure 18 c and Figure 18 d, represented another kind of modification by coating 7 of the present invention.Non-wire basic element 8,9 and 13 is the colored basic element 52 in the grill unit 12 of the grid of formation rule again.The basic element 8,9 and 13 of triangle has the color of basic color scheme, for example the color among the basic color scheme CMY.In the example shown, triangle 8 is a cyan, and triangle 9 is a carmetta, and triangle 13 is yellow.

Different with the coating grid shown in Figure 18 a, the coating 7 shown in Figure 18 c comprises two grids that along continuous straight runs (direction 16 among Figure 18 d) is arranged with offsetting.As seen by Figure 18 c, shown in the colored basic element 52 of first and the third line of coating belong to a grid, the colored basic element 52 of second row then is arranged in the grill unit 62 in second grid.At this, grill unit 62 is with respect to half grid width of grill unit 12 along continuous straight runs, 16 offsettings of first grid.

Then the layout for wire impression element produces three preferred orientations 16,18 and 19 (seeing the stamping structure 64 of signal).If the impression element of second of overlapping coating 7 row on direction 16 for example, just only there is yellow triangle 13 at the edge that has the impression element of triangular cross section for example so.When observing this edge, therefore the observer only sees yellow triangle 13 and background color, and for example therefore white just produced the yellow that lightens.On the contrary, the observer can feel the secondary colour of being made up of the white of the carmetta of basic element 9 or 8 and cyan and background area that can identify on other edge of the impression element of arranging along direction 16.

Make wire impression element produce a kind of sensation that depends on direction of observation along the layout of preferred orientations 18 in a similar fashion, wherein, the edge of impression element is owing to only having arranged that at this place the carmetta triangle feels the carmetta that is lightened by background color.When observing another edge of background color, side produces a kind of by the yellow of background color and basic element 13 or 8 and the secondary colour that cyan is formed.

At last, stamping structure has produced the cyan that lightens merely along the edge that is arranged as of preferred orientations 19, is that another edge has then produced carmetta and the yellow secondary colour of forming by background color and basic element 9 or 13.

In the vertical view of coating 7 shown in Figure 18 c and Figure 18 d, be again that each colored basic element produces a secondary colour of being made up of the color of basic element 8,9 and 13.Therefore, to the general impression of coating because the white tone of background and present a kind of gray tone that lightens slightly.In the aforementioned discussion to secondary colour, the secondary colour of colored basic element always produces during less than the resolution capability of human eye in the size of the colour plane of single basic element.

Example 5 (Figure 19)

Figure 19 illustrates with Figure 18 a and Figure 18 b in the shown similar coating 7 of coating.But, the basic element 8,9 of colored basic element 52 and 13 layout are different from layout in all the other grill unit 12 in some grill unit of coating 7.The grill unit that has the different elements layout is represented with Reference numeral 22, and is finally formed additional information in coating inside.Depend on the orientation of stamping structure with respect to the colored basic element of grid-like layout, this additional information can be felt when overlooking and from some specific directions.This additional information is the anti-counterfeiting characteristic that adds, and this anti-counterfeiting characteristic has by coating of the present invention 7 inherences.

Example 6 (Figure 20 to Figure 26)

Further mixed color effect is described by the generation by optically variable structure of the present invention below.In Figure 20, drawn the part section of the image subject that shows in the print image zone 2 of data medium 1 shown in Figure 1.Can be located at the non-wire basic element of a kind of color (for example black) in the basic unit.In addition, stamping structure is arranged in the specific region of coating and extends along specific direction.For this reason, Figure 25 shows an example of the eye areas of image subject.

As shown in figure 21, image section also can realize that described non-wire basic element has a kind of or various contour shapes and a kind of or shades of colour by the non-wire basic element of grid-like layout.In this case, the coating of image subject is made of the basic element 39 with circular contour shape, and wherein, basic element 39 covers the filler that has in various degree for producing a color that sets for the specific region of image subject.For example, basically by complete filling, and opposite, basic element 39 then be annulus in the zone of forehead to basic element 39 in the hair zones of the portrait of being drawn, and can feel the color of background at the center of described annulus, and is for example white.In addition, the color that is used for the basic element in single image zone can change.

In addition, in Figure 22, drawn have by basic element 13 form than coarse rack, Figure 20 and image section shown in Figure 21.At this, in the grid of a rule, arrange two bow ring section shape basic elements 13 respectively.The variation of filling by the area of single basic element 13 can show the image section with enough contrasts.Obviously also possible is, two basic elements 13 of different colours are set to a colored basic element, and when overlooking, producing secondary colour for specific colored basic element, this secondary colour is drawn by right color of basic element and the background color that identifies in grill unit.And, be provided with suitable stamping structure by coating of the present invention shown in Figure 21 and Figure 22, wherein, in each image-region, stipulated the different directions of impression element again.As exemplarily illustrating by Figure 25, defined a plurality of preferred orientations (seeing Figure 26) although have the image subject of straight line subregion with preferred orientations 16 to 19, also can find tangible preferred orientations for the image-region of Figure 21 and Figure 22.

Describe colored basic element and wire stamping structure in detail for realize the interaction of impressive color upset effect by secondary colour below in conjunction with Figure 23 and Figure 24.Shown in Figure 23 can be according to one of theme shown in Figure 21 strong partial cross section of amplifying by coating 7 of the present invention.The non-wire basic element 8,9 and 13 the arranged in form that have different colours respectively according to grid with constant grid width x and y.At this, each basic element 8,9 and 13 constitutes a colored basic element 52, and this colour basic element is arranged in the grill unit 12 of grid.Each colored elementary cell 52 is accurately corresponding with a picture point of coloured image theme (theme for example shown in Figure 21).Be equipped with the specific color composition of color system for the picture point of each image subject.Under this kind situation, adopt basic color scheme CMY.The basic element 8,9 and 13 of the colored basic element 52 of each of coating 7 correspondingly has cyan, carmetta and yellow.The color composition of picture point is determined by the size of the colour plane of basic element 8,9 and 13.Therefore human eye can not only identify the definite secondary colour of colour plane by the basic element of each colored basic element 52 to the perception apart from each other of described basic element owing to its finite resolution when overlooking coating 7.Should also be noted that do not covering fully under the situation of background,, but, under the situation of selecting white background, only cause the highlight of the visually-perceptible secondary colour of colored basic element 52 owing to the color of background produces additional color composition.On the other hand, also can design colored basic element 52 without difficulty like this, make the area of grill unit 12 be capped fully basically, thereby only determine the color of the picture point of theme by the color of colored basic element 52.

As shown in figure 23, change the size of the colour plane of basic element in this wise, make that the color composition of each colored basic element 52 is accurately determined.Therefore, in the vertical view of coating 7, produce the image subject that will show that has for the color of each picture point explication.

As shown in Figure 24, the interaction of this coating and wire impression element causes by optically variable structure of the present invention.Stamping structure 4 comprises wire impression element 5 and 15, and wherein, the former is along preferred orientations 16, and the latter then arranges along preferred orientations 17.Wire impression grid 5 is accurately corresponding with the grid width x and the y of coating 7 with y with 15 grid width x.As seen from Figure 24, in fact the layout of impression element in the zone of coating 7 do not change the eye impressions when overlooking.That is to say, because the human eye finite resolution, only perceived the secondary colour that in the zone of the grill unit 12 of coating, sets for colored basic element 52.When observing, the observer can perceive diverse image in the direction (for example direction 17) that is different from depression angle from.For example on the edge 5a of impression element 5, the colour plane of basic element 8 is only arranged, the colour plane of basic element 9 and 13 is then arranged on edge 5b.Correspondingly for the edge 5b in the grill unit 12 of impression element 5 produce the secondary colour that colour plane and background color by basic element 9 and 13 limit, but be that same grill unit 12 interior edge 5a then produce the aware colors of being made up of the inherent colour and the background color of basic element 8.Each grill unit 12 for the coating 7 that is provided with stamping structure all is like this equally.By this way can be according to true colors display image theme with method, and make theme have impressive color upset effect simultaneously.

Example 7 (Figure 27 to Figure 29)

Figure 27 to Figure 29 shows the another kind of modification by optically variable structure of the present invention, and the mixed color effect of the effect of wherein overturning and the overlapping generation by basic element makes up mutually.Figure 27 illustrates the stamping structure 4 that has wire impression element 15.Different with stamping structure shown in Figure 12, impression element 5 shown in Figure 27 or 15 has the cross section shown in Figure 34 g or Figure 34 f.

Illustrated among Figure 28 by coating 7 of the present invention, this coating and stamping structure shown in Figure 27 4 are combined into optically variable structure.Coating 7 is made of three types non-wire basic element 8,9 and 13, and they are respectively according to the form setting of regular grid.Therefore correspondingly, the grid that is made of basic element 8 and 9 is the basic element that has filler, and is suitable for the covering than large tracts of land of grid of this coating modification especially well.In addition, also can use other basic element in principle, as alphanumeric symbol 13.As seen from Figure 28, the layout of basic element and grid defines preferred orientations 16 and 17.And coating grid 7 has grid width x on direction 17, and has grid width y on direction 16, and they are consistent with the grid width of stamping structure 4 shown in Figure 27.The basic element of grid has specific color, for example the redness of RGB basic color scheme, green and blue.In the zone of being determined by the layout of grid, the basic element overlaid of versicolor grid also constitutes the secondary colour of determining in this zone.Therefore coating 7 shows as the overlapping of versicolor grid when overlooking, described grid has a kind of secondary colour in the overlapping region.The layout of overlapping region is corresponding with the picture point of image subject or geometrical pattern, thus when overlooking, identify in a grid by image subject or the pattern formed with the corresponding basic colors of secondary colour.By having produced a kind of optically variable structure with impression combination of elements shown in Figure 27, this optically variable structure can be discerned above-mentioned coating in overlooking, and can identify the colored structure that depends on stamping structure 4 when other direction is observed.

In Figure 29 a to Figure 29 c, illustrated other by coating grid 7 of the present invention.For clarity sake, do not express the non-wire basic element that constitutes grid separately, although described non-wire basic element is arranged in the grid spaced reciprocally in the mode that is similar to Figure 28.Shown in Figure 29 a, the grid ground out of square that is made of basic element intersects mutually, makes to have produced three preferred orientations 17,37 and 47 for may arranging of stamping structure.According to the layout of grid, then produced the overlapping region of the basic element of each grid, make coating 7 when overlooking, produce a kind of labyrinth of forming by the picture point of the pure color that has secondary colour and basic element.The layout of grid is so accurately to realize on background, makes the layout of secondary color regions itself represent an anti-counterfeiting characteristic, and this anti-counterfeiting characteristic is combined with the upset effect that is caused by stamping structure.

7 one kinds of modification of coating shown in Figure 29 a have been shown in Figure 29 b.At this, for the grid that is made of basic element 9 adds an achromatic region 39.Formed the dependence of the layout of basic element 13 thus for white portion 39 and basic element 9.Consequent basic element 9 has formed a kind of additional anti-counterfeiting characteristic of coating 7 for the spatial dependence in the basic element of other grid and the zone 39 of being added.

In Figure 29 c, express the another kind of modification of the coating 7 that has mixed color effect.In this case, be that the grid be made of basic element 8 adds a zone 38, this zone causes cutting apart of the grid that is made of basic element 9 and 13.The spatial dependence of the basic element of basic element and other grid is a kind of additional and be the anti-counterfeiting characteristic that can not copy without difficulty at present.In addition, produced the overlapping region that has secondary colour by coating 7 shown in Figure 29 c, this secondary colour causes depending on the upset effect of direction of observation owing to the layout of stamping structure.

Example 8 (Figure 30 to Figure 34)

Shown in Figure 30ly form by the oval basic element 8,9 and 13 of different colours by coating 7 of the present invention.Different with described coating so far 7 is, identifies direction 47, and this direction is not corresponding with the preferred orientations of coating grid.If the layout of wire impression element is carried out along this direction, so just with on the corresponding to direction of observation of the preferred orientations of coating grid do not producing the upset effect.Be integrated in another coating 7 if having the coating 7 of the stamping structure of arranging along direction 47, wherein, impression carries out along the preferred orientations of described coating 7, and so, the zone that goes out shown in Figure 30 is the additional information of whole coating inside.

The cross section of stamping structure has been shown among Figure 31, Figure 32, in this cross section, has included additional information 40.Under the situation of structure shown in Figure 31, additional information 40 produces by the change of the grid width of impression grid.On the contrary, the additional information in the stamping structure shown in Figure 32 then the cross section by wire impression element be changed to triangle from circle and produce.

But, as from visible the example of structure shown in Figure 33, the additional information of coating also can easily be arranged in the stamping structure of design for this reason.The stamping structure of being made up of triangular cross section has peak (Amplitude) 20 and sizable grid width, makes to leave base area 31 between each wire impression element, and this base area can be provided with the additional information of coating.The additional information that is located at this place is visible when overlooking and when the certain observation direction is seen, and expresses the upset effect by optically variable structure of the present invention inherence.

The various cross sections of wire impression element have been shown among Figure 34.This should be noted that cross section also may be shown in the combination of cross section.And the edge of cross section (for example shown in Figure 34 m) may be recessed.

Example 9 (Figure 35 a, Figure 35 b, Figure 36 a and Figure 36 b)

Manufacturing by data medium of the present invention has been described in Figure 35 a, 35b, 36a and Figure 36 b.

Optically variable structure preferably produces according to printing technology.For this reason, go up printed coating according to any printing process (preferred offset printing) in basic unit's (preferably documents), and subsequently this coating is correspondingly impressed with coining tool.Preferably use engraving as coining tool at this.These steps are shown in Figure 35 a and Figure 35 b.

Figure 35 a shows by the cross section of data medium of the present invention before moulding process.At this, data medium 10 at first utilizes background layer 29 for example to print on whole.On this background layer, lay the coating of forming by basic element 26,27.

Background layer 29 also can be the form of information and pattern.Also can adopt specific process color, described process color has further improved the false proof protection effect of optically variable structure.Described process color can be the optically-variable process color process color of interfering layer pigment and liquid crystal pigment (as comprise) or metal effect look (as golden effect look or silver-colored effect look).

Figure 35 b shows the cutaway view behind the data medium impression, and described impression produces as the blind blocking in the gravure process in the example shown.Impression is placed like this, makes the coating that has basic element 26,27 can be positioned on the edge of impression element.

As an alternative, also can be according to another kind of method, for example according to a kind of printing transferring method, on whole or lay background 29 with being provided with blank or pattern equally.At this, also can lay metal pattern element or coating according to printing transferring method.

As shown in figure 36, also can save background layer 29 fully.On the contrary, the impression that for example produces according to the cut printing is undertaken by color indication ground.

Figure 36 a shows structure and basic unit 10 and the coating 26,27 before the impression.Represented the situation behind the impression among Figure 36 b.Therefore structure shown in Figure 36 b is congruent to impression ground and color layer 20 occurs by color indication ground impression.Additional color layer 30 can be used as the superiors, because carry out as last method step at this impression.

Be preferably color layer 30 and be taken to not a half transparent color.The cut printing of color indication can be implemented in one modification like this, make only to occur tinting on non-wire impression element, but the recess between the non-wire impression element does not but have color.

In a kind of expansion, can use a kind of color that has machine readable additive, for example luminescent material for color layer 30.

Claims (38)

1. Security element that has optically variable structure, this optically variable structure has a stamping structure and a coating that has wire impression element, wherein said stamping structure and described coating are arranged in this wise, make at least a portion coating when right-angle view fully as seen, covered when oblique observation, it is characterized in that, basically whole described coating is made of non-wire basic element, described non-wire basic element passes through contour shape, size, these parameters of color and direction characterize, and described non-wire basic element and described stamping structure make up in this wise, make can see different information when changing direction of observation.

2. Security element according to claim 1 is characterized in that, described non-wire basic element have circle, ellipse and/or polygonal border, especially be the contour shape of triangle, square or rectangle.

3. Security element according to claim 1 is characterized in that, described non-wire basic element has the contour shape of being determined by symbol, geometrical pattern and/or alphanumeric character.

4. according at least one described Security element in the claim 1 to 3, it is characterized in that described non-wire basic element has the filler on whole basically.

5. according at least one described Security element in the claim 1 to 4, it is characterized in that described non-wire basic element has the size of 10 μ m to 500 μ m, the especially size of 20 μ m to 250 μ m.

6. according at least one described Security element in the claim 1 to 5, it is characterized in that described non-wire basic element size in any direction all is not more than four times of size on other direction.

7. according at least one described Security element in the claim 1 to 6, it is characterized in that, the described coating of being made up of described non-wire basic element is printed layers, especially graph brush layer, intaglio process brush layer, screen-printed layers, aniline printing layer, duplicates layer, ink jet printing layer or thermal imaging printed layers, or by laser printer or the layer that produces by the laser emission effect.

8. according at least one described Security element in the claim 1 to 7, it is characterized in that the described non-wire basic element of at least a portion is arranged in the grid.

9. according at least one described Security element in the claim 1 to 8, it is characterized in that the non-wire basic element of each at least two different colours is according to the arranged in form of colored basic element.

10. Security element according to claim 9 is characterized in that, the described colored basic element of at least a portion is arranged in the grid.

11. according to Claim 8 or 10 described Security elements, it is characterized in that the described grid of described basic element or described colored basic element has constant grid width.

12., it is characterized in that the described non-wire basic element of described non-wire basic element and/or described colored basic element has the color of a basic color scheme according at least one described Security element in the claim 9 to 11.

13. according at least one described Security element in the claim 9 to 12, it is characterized in that, described optically variable structure has a plurality of colored basic elements, described colored basic element demonstrates colored image subject and/or geometrical pattern when right-angle view, its eye impressions change with the change of viewing angle.

14. Security element according to claim 13, it is characterized in that, described colored basic element is corresponding with the picture point of described image subject and/or geometrical pattern, described picture point is equipped with the particular color composition of color system, and described colored basic element has the non-wire basic element that has colour plane, described mask color has the color in the described color system, wherein, the size of the described colour plane of described non-wire basic element is corresponding with the relevant color composition of described picture point, and therefore the color impression of described image subject and/or geometrical pattern changes along with the change of viewing angle.

15. according to Claim 8 or 11 described Security elements, it is characterized in that, at least two grid composing images themes forming by the non-wire basic element of each a kind of color and/or geometrical pattern, and in the zone of determining by the layout of described grid, arrange the described non-wire basic element of different grids overlappingly, and in described zone, produce secondary colour.

16. Security element according to claim 15, it is characterized in that, the basic element of region overlapping is corresponding with the picture point of described image subject and/or geometrical pattern, set the particular color of color system for described picture point, and the secondary colour of the basic element of described region overlapping is corresponding with the relevant color of described picture point, makes the color impression of described image subject and/or geometrical pattern change along with the change of described viewing angle.

17. at least one described Security element in 16 according to Claim 8, it is characterized in that, described non-wire basic element and/or described colored basic element limit at least one preferred orientations in the plane of described coating, and described wire impression element is arranged on the direction of at least one preferred orientations at least partly, make that eye impressions change with direction of observation when vertically observing the described zone that is provided with stamping structure and coating with respect to described at least one preferred orientations.

18., it is characterized in that described optically variable structure has the additional information that the variation by described coating and/or described stamping structure produces according at least one described Security element in the claim 1 to 17.

19. Security element according to claim 18, it is characterized in that, described additional information is by the variation of shape, color and/or the layout of described non-wire basic element, as offsetting, the change of grid width, omission, the one or more non-wire basic elements of mirror-image arrangement, perhaps the layout of information, for example alphanumeric character or the bar code by making described optically variable element personalization produces

20., it is characterized in that the described wire impression of at least a portion element formation one has the impression grid of a grid width according at least one described Security element in the claim 1 to 19.

21. Security element according to claim 20, it is characterized in that, described additional information produces by shape, size, the height of described wire basic element and/or the variation of arranging, described variation for example is the omission of offsetting, the change of grid width, one or more wire impression element.

22. according at least one described Security element in the claim 1 to 21, it is characterized in that described optically variable structure has another color layer, described color layer is preferably translucent, and is congruent to the relief area ground layout of described stamping structure.

23., it is characterized in that described optically variable structure has the background layer of metal according at least one described Security element in the claim 1 to 22.

24., it is characterized in that the part at least of described coating and/or described another color layer has machine readable characteristic according at least one described Security element in the claim 1 to 23.

25., it is characterized in that described coating and/or described another color layer have magnetic, conduction or the characteristics of luminescence according at least one described Security element in the claim 1 to 24.

26. according at least one described Security element in the claim 1 to 25, it is characterized in that, on the described optically variable structure or under be supported with additional, translucent optically-variable layer or thin-film component.

27. according at least one described Security element in the claim 1 to 26, it is characterized in that described optically variable structure is divided into the plurality of sub zone, in described subregion, be furnished with different sub-stamping structures and/or sub-coating.

28. Security element according to claim 27 is characterized in that, the offset part of described grid width, especially 1/3rd ground of described sub-stamping structure or described sub-coating are arranged in two subregions that adjoin each other at least.

29., it is characterized in that the described sub-stamping structure of at least one subregion has the not edge contour of impression according to claim 27 or 28 described Security elements.

30. data medium that has according to each described Security element in the claim 1 to 29.

31. data medium according to claim 30 is characterized in that, described data medium is marketable securities, especially banknote.

32. according to each described Security element in the claim 1 to 29 or according to a kind of application that is used for product false proof of claim 30 or 31 described data mediums.

33. method that is used to make the Security element that has optically variable structure, this optically variable structure has stamping structure and the coating that has wire impression element, wherein said stamping structure and described coating are arranged in this wise, make at least a portion coating when right-angle view fully as seen, covered when oblique observation, it is characterized in that, one basic unit is provided with non-wire basic element, described non-wire basic element constitutes whole described coating basically, and described non-wire basic element passes through contour shape, size, these parameters of color and direction characterize, and described non-wire basic element and described stamping structure make up in this wise, make can see different information when changing direction of observation.

34. method according to claim 33 is characterized in that, described non-wire basic element is printed in the described basic unit and/or the effect by laser emission produces.

35. method according to claim 34, it is characterized in that described printing is with such as the lithographic printing of offset printing method, with such as the letterpress of protruding seal or flexography printing method, with serigraphy, with such as the intaglio printing of photogravure or cut printing, to produce such as the ink ejecting method of heat-transferring method or thermal imaging method or with laser printing.

36. at least one described method according in the claim 33 to 35 is characterized in that described non-wire basic element is in the printing or the described basic unit that is laid in before the stamping structure generation.

37., make described stamping structure produce with intaglio printing according at least one described method in the claim 33 to 36.

38., it is characterized in that according to the described method of claim 37, when forming described stamping structure, print another color layer in described basic unit, described color layer is congruent to the relief area ground of described stamping structure and arranges.

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