CN108693582A - A kind of optical anti-counterfeit element and product - Google Patents
A kind of optical anti-counterfeit element and product Download PDFInfo
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- CN108693582A CN108693582A CN201710235274.2A CN201710235274A CN108693582A CN 108693582 A CN108693582 A CN 108693582A CN 201710235274 A CN201710235274 A CN 201710235274A CN 108693582 A CN108693582 A CN 108693582A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
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Abstract
The present invention relates to optical technical fields, disclose a kind of optical anti-counterfeit element, which includes base material, micro-structure forming layer and dyed layer, and the base material is located on the dyed layer;The micro-structure forming layer is located on the base material;The micro-structure forming layer includes grating group region and microstructure area, and the microstructure area is adjacent with grating group region;Grating group region has balzed grating, adheres to reflecting layer on the balzed grating,;The microstructure area has the micro-structure in the non-cohesive reflecting layer in surface;Wherein, the depth-width ratio of the micro-structure is more than the depth-width ratio of the balzed grating,.The present invention enables to the mutability of color in optical anti-counterfeit element to significantly improve, and improves color change effect, improves anti-counterfeiting performance.
Description
Technical field
The present invention relates to optical technical fields, and in particular, to a kind of optical anti-counterfeit element and product.
Background technology
Human eye has extremely sensitive perception and resolution capability for color, thus in optical anti-counterfeiting field, utilizes color
It is a kind of common optical anti-counterfeiting form that variation, which forms unique visual effect,.When observer changes viewing angle, such as incline
Oblique optical anti-counterfeit element either changes the illumination direction of light source or changes the direction of observation of observer, the optical anti-counterfeit element
Color change, formed and be different from other colors of initial color.This color change identification is simple, without to observer
Carry out excessive education, observer can have found bright between two kinds of colors within the extremely short time, such as in several seconds time
Aobvious difference.
The method for realizing above-mentioned color change includes various ways.A kind of mode is that plane micro-structure is utilized to form micron-
The light of specific wavelength is selected in special angle by the grating of Nano grade using grating to the diffraction of incident light, and observer exists
Different angle is observed that different colors.Another way is to have different refractivity or anti-with the vertical direction of plane
The film material superposition for penetrating property, reinforces the specific band in incident light using principle of interference, all band is cut
It is weak, form the chromatic colour that becomes clear.When viewing angle changes, light path of the light in interference capability optical element becomes
Change, characteristic wavelength is caused to change, forms second of color of color before being different from.
Diffraction mode in the prior art and interference mode cannot accomplish the mutation of color, be rushed to the vision that human eye is brought
Power is hit to need to improve.
Invention content
The object of the present invention is to provide a kind of optical anti-counterfeit element and product, for solving above-mentioned technical problem or at least
Partly solve above-mentioned technical problem.
To achieve the goals above, the present invention provides a kind of optical anti-counterfeit element, which includes base material, micro-
Structure forming layer and dyed layer, the base material are located on the dyed layer;The micro-structure forming layer be located at the base material it
On;The micro-structure forming layer includes grating group region and microstructure area, the microstructure area and grating group region
It is adjacent;Grating group region has balzed grating, adheres to reflecting layer on the balzed grating,;The microstructure area has table
The micro-structure in the non-cohesive reflecting layer in face;Wherein, the depth-width ratio of the micro-structure is more than the depth-width ratio of the balzed grating,.
Optionally, the angle of inclination of each balzed grating, is identical with inclined direction in same grating group region.
Optionally, the angle of inclination of each balzed grating, and/or inclined direction are different in same grating group region.
Optionally, grating group region is in periodic distribution.
Optionally, grating group region random distribution in a predetermined direction.
Optionally, the angle of inclination of the balzed grating, in different grating groups region and/or inclined direction are different.
Optionally, the range of the balzed grating, is at 10 μm to 100 μm.
Optionally, the interregional position of grating group described in the micro-structure forming layer has angle of inclination and/or inclination
The balzed grating, of direction random distribution adheres to reflecting layer on the balzed grating,.
Optionally, the reflecting layer includes at least one in metal layer, metal compound layer and Fabry-Perot interference device
Kind.
Optionally, the optical anti-counterfeit element includes protective layer;The protective layer is located on the micro-structure forming layer.
Optionally, the refractive index of the protective layer and the cambial refractive index of the micro-structure are same or similar seemingly.
Optionally, the color of the dyed layer is different with the color in the reflecting layer for being attached to the balzed grating,.
Optionally, the color of the dyed layer is identical as the color in the reflecting layer for being attached to the balzed grating,.
According to another aspect of the present invention, a kind of optical anti-counterfeiting product is provided, including as above any optics is anti-
Pseudo- element.
Through the above technical solutions, optical anti-counterfeit element includes base material, micro-structure forming layer and dyed layer, the base material position
On the dyed layer;The micro-structure forming layer is located on the base material;The micro-structure forming layer includes grating group
Region and microstructure area, the microstructure area are adjacent with grating group region;Grating group region, which has, to glare
Grid adhere to reflecting layer on the balzed grating,;The microstructure area has the micro-structure in the non-cohesive reflecting layer in surface;Wherein,
The depth-width ratio of the micro-structure is more than the depth-width ratio of the balzed grating,;So that the mutability of color is apparent in optical anti-counterfeit element
It improves, improves color change effect, improve anti-counterfeiting performance.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the sectional view of optical anti-counterfeit element according to the ... of the embodiment of the present invention;
Fig. 2 is the schematic diagram of the view mode of optical anti-counterfeit element as shown in Figure 1;
Fig. 3 is the sectional view of optical anti-counterfeit element according to another embodiment of the present invention;
Fig. 4 is the chromaticity coordinate schematic diagram of optical anti-counterfeit element according to the ... of the embodiment of the present invention;
Fig. 5 is the chromaticity coordinate schematic diagram of optical anti-counterfeit element according to another embodiment of the present invention;
Fig. 6 is the sectional view of optical anti-counterfeit element according to an embodiment of the invention;
Fig. 7 is the sectional view of optical anti-counterfeit element according to an embodiment of the invention;
Fig. 8 is the vertical view of optical anti-counterfeit element according to an embodiment of the invention;And
Fig. 9 is the vertical view of optical anti-counterfeit element according to another embodiment of the present invention.
Reference sign
1 optical anti-counterfeit element, 2 micro-structure forming layer
3 base material, 4 dyed layer
5 protective layers
21,23 grating group regions 22,24 microstructure areas
The interregional position of 25 grating groups
211,231 balzed grating,s 212,232 reflecting layer
221 micro-structures
31 first surface, 32 second surface
41 first coloring layer regions 42 second colour layer region
61 first area of the pattern, 62 second area of the pattern
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is the sectional view of optical anti-counterfeit element according to the ... of the embodiment of the present invention;As shown, the optical anti-counterfeit element 1
Including base material 3, micro-structure forming layer 2 and dyed layer 4.Base material 3 is located on dyed layer 4;Micro-structure forming layer 2 is located at base material 3
On;Micro-structure forming layer 2 includes grating group region 21 and microstructure area 22, microstructure area 22 and 21 phase of grating group region
It is adjacent.Grating group region 21 has balzed grating, 211, adheres to reflecting layer 212 on balzed grating, 211;Microstructure area 22 has table
The micro-structure 221 in the non-cohesive reflecting layer in face;Wherein, the depth-width ratio of micro-structure 221 is more than the depth-width ratio of balzed grating, 211.Micro- knot
The depth-width ratio of structure 221 is the ratio of 221 height and the width of micro-structure;The depth-width ratio of balzed grating, 211 is the height of balzed grating, 211
The ratio of degree and width.
Wherein, the angle of inclination of each balzed grating, 211 and inclined direction can be identical in same grating group region 21.Such as figure
Shown in 2, the angle of inclination of balzed grating, 211 is α, and inclined direction is identical.
Alternatively, the angle of inclination of each balzed grating, 211 and/or inclined direction can not in same grating group region 21
Together.
For example, the arrangement of balzed grating, 211 has periodically, the balzed grating, of periodic arrangement can provide reflected coat layer with
The new color of outer another kind, improves the selectance of color and the range of color change.
The arrangement of balzed grating, 211 can not have periodically yet, and balzed grating, has certain on determining design direction
Random swing, this kind of randomness can periodically eliminate original, and color be made to have higher saturation degree.
Wherein, grating group region 21 can be in periodic distribution or grating group region 21 can in a predetermined direction with
Machine is distributed.
Wherein, reflecting layer 212 includes at least one of metal layer, metal compound layer and Fabry-Perot interference device.
For metal layer, it can be the coloured metal of tool, such as copper and copper alloy, gold etc., have to be formed
The metallic reflector of color.Can also be metal of no special color, such as aluminium, silver etc., to form colourless metal reflecting layer.
Can be the coloured metallic compound of tool, such as TiN, CrN, Fe2O3 for above-mentioned metal compound layer
Equal materials.
Can be " reflecting layer/dielectric layer/half-reflection and half-transmission layer " structure for above-mentioned Fabry-Perot interference device
Fabry-Perot interference device, such as " aluminium/silica/chromium ", " aluminium/magnesium fluoride/aluminium " isostructural Fabry-Perot interference
Device.
Wherein, the area of microstructure area 22 is less than grating group adjacent with microstructure area 22 in optical anti-counterfeit element 1
The 70% of the gross area of region 21 and microstructure area 22, preferably 20%.
As shown in Figure 1, optical anti-counterfeit element 1 includes base material 3, there is micro-structure forming layer in the first surface 31 of base material 3
2, micro-structure forming layer 2 has at least two different zones, grating group region 21 and microstructure area 22.In Fig. 1, micro-structure
Region 22 is clipped between two grating group regions 21.The wherein reflection of grating group region 21 with balzed grating, 211 and thereon
Layer 212.Grating group region 21 is adjacent with microstructure area 22.As shown in Figure 1,221 depth-width ratio of micro-structure is more than balzed grating, 211
Depth-width ratio.Also, the surface areflexia layer of micro-structure 221 in microstructure area 22, it is exposed outside.The second surface of base material 3
There is one layer of dyed layer 4 on 32.
Wherein, reflecting layer 212 can be but be not limited only to metal layer, metal compound layer and Fabry-Perot interference device
Deng with the material compared with strong reflection effect.Material can have specific color, have stronger reflection to certain specific wavelengths
Such as copper, titanium nitride etc.;Can also have preferable reflection, such as aluminium, silver etc. to each wavelength of visible light.
Fig. 2 is the schematic diagram of the view mode of optical anti-counterfeit element as shown in Figure 1.When in the first viewing angle to second
When observing the optical anti-counterfeit element 1 within the scope of viewing angle, reflecting layer 212 due to balzed grating, 211 and thereon to light
The barrier effect of line, the light reflected by dyed layer 4 cannot be introduced into the eyes of observer, therefore observer can only observe reflection
The color of layer 212.When the viewing angle of observer is changed to the second viewing angle, other than having the color in reflecting layer 212, by
In areflexia layer in microstructure area 22, therefore the light of dyed layer 4 can be identified by microstructure area 22 through observed person,
The color that the optical anti-counterfeit element 1 is presented at this time is the color of both reflecting layer 212 and dyed layer 4 mixing.When observer is
When near three viewing angles, reflecting layer 212 can not play the reflected light of dyed layer 4 barrier effect, therefore observer observes
The color arrived is the color of dyed layer 4, and the optical anti-counterfeit element 1 presentation at this time is the color of dyed layer 4.
In embodiment as shown in Figure 1, due to the presence of microstructure area 22, cause near the second viewing angle,
The color of optical anti-counterfeit element 1 is reflecting layer 212 to be superimposed with dyed layer 4.It, should during oblique optical Security element 1
The color that element is presented is followed successively by " reflecting layer 212 "-" reflecting layer 212+ dyed layers 4 "-" dyed layer 4 ".That is, optics
The color of Security element 1 is not to jump completely, but there are this to exist by two kinds of color additions between two kinds of colors
Intermediate color together, and intermediate color is determined by grating group region 21 and the area ratio of microstructure area 22.
For example, when the area of microstructure area 22 is less than microstructure area 22 and adjacent in optical anti-counterfeit element 1
The certain percentage of the gross area in grating group region 21, such as when 70%, " the reflecting layer 212+ dyed layers in the second viewing angle
4 " secondary colour will not observed person tell.Moreover, because reflecting layer 212 can be adjacent to its on balzed grating, 211
Microstructure area 22 blocks effect with certain, can expand the holding angle of 212 color of inverse layer, realize better color
Purity and color transition effect.As shown in figure 3, the range observation optics between first the-the second viewing angle of viewing angle is anti-
When pseudo- element 1, the color in reflecting layer 212 is presented in optical anti-counterfeit element 1;When in the second viewing angle observation optical anti-counterfeit element 1
When, the color of dyed layer 4 is presented in optical anti-counterfeit element 1.There are apparent difference, color to be imitated with " saltus step " between the two color
Fruit.At this point, since 22 area of microstructure area is less than the gross area in whole microstructure area 22 and adjacent gratings group region 21
Certain percentage, such as 70%, therefore intermediate color will not be formed with the color mixing of reflecting surface 212.In this way, further enhancing light
Learn the mutability of color in Security element so that anti-counterfeiting performance is more notable.
Fig. 4 is the chromaticity coordinate schematic diagram of optical anti-counterfeit element according to the ... of the embodiment of the present invention, in the embodiment, reflecting layer
212 be aluminium, and dyed layer 4 is carmine pigment.In viewing angle in the case of 150 ° -110 °, observer can only observe
The color of the aluminium in reflecting layer 212 on balzed grating, 211, as shown in Fig. 4 chromaticity coordinates (CIELab).When viewing angle exists
When changing within the scope of 110 ° -70 °, due to having been able to observe the color of dyed layer 4 at this time by microstructure area 22, still
Since the color that the two ratio changes with the variation of viewing angle, therefore observes is a kind of effect of synthesis, such as Fig. 4
Shown in.The two hue angle h is basically unchanged, and saturation degree C becomes larger.When viewing angle is in the range of 70 ° -30 °, due to that can only see
The color of dyed layer 4 is observed, therefore color is constant, is the color of 4 pigment of dyed layer.
Fig. 5 is a kind of embodiment of optical anti-counterfeit element according to another embodiment of the present invention, in the embodiment, reflecting layer
212 Fabry-Perot cavities with color change formed for " aluminium/ice crystal/nickel ", pass through design appropriate and thickness
Control, is allowed to form carmetta;Dyed layer 4 is carmine pigment.In change procedure of the viewing angle at 150 ° to 110 °,
Reflecting layer 212 on balzed grating, 211 produces apparent color change feature with the variation of viewing angle, which is
Since the Fabry-Perot cavity of the formation of reflecting layer 212 is caused by the modulation of incident light.When viewing angle at 100 ° extremely
When 70 ° of range, reflecting layer 212 and dyed layer 4 have cooperatively formed another color change.When viewing angle exists
When 60 ° to 30 ° variations, only dyed layer works, and forms fixed color.The CIELab of the concrete numerical value of color such as Fig. 5 is sat
Shown in mark.It can be seen that when viewing angle α is larger and smaller, the color of the optical anti-counterfeit element 1 is essentially identical, in
Between angle colorations it is different, form specific color change effect.
In one embodiment, optical anti-counterfeit element 1 includes protective layer 5;Protective layer 5 is located on micro-structure forming layer 2.
Further, the cambial refractive index of refractive index Yu micro-structure of protective layer 5 is same or similar seemingly.
In the above-described embodiments, 212 surface of balzed grating, is covered with reflecting layer 212, and the physics on 212 surface of reflecting layer
Chemical property has conclusive effect to reflecting properties, therefore needs to protect the Security element surface.As shown in fig. 6,
The protective mulch 5 on micro-structure forming layer 2.Since in an embodiment of the present invention, 2 refractive index of micro-structure forming layer is general
For the range of 1.5-1.6.5 refractive index of protective layer is generally also in the range of 1.5-1.6.And due to micro- knot of microstructure area 22
221 surface of structure does not have reflecting layer, therefore after protective layer 5 is coated on the micro-structure 221 of microstructure area 22, due to two kinds of materials
Material refraction is same or similar, therefore this interface and is not present for the light by this interface, formed be similar to it is shown in fig. 6
New microstructure area 22.After increasing protective layer 5, the micro-structure 221 of microstructure area 22 forms flat surface, more holds
Easily light is made to be propagated the color for contributing to observer to observe directly dyed layer 4 without diffraction.
In one embodiment, the angle of inclination of the balzed grating, in different grating groups region can be different, or inclination side
It is all different to difference or angle of inclination and inclined direction.
Wherein, the range of balzed grating, is at 10 μm to 100 μm.For example, same tilt angle and inclined direction glare
For the range of grid between 10 μm -100 μm, preferred scope is 15 μm -50 μm, and Near Range is 20 μm -30 μm.
Wherein, there is angle of inclination and/or inclined direction to divide at random at grating group interregional position in micro-structure forming layer
The balzed grating, of cloth adheres to reflecting layer on balzed grating,.
Wherein, the color of the dyed layer is identical or different as the color in the reflecting layer for being attached to the balzed grating,.
For example, the color of dyed layer 4 is different from the color of 211 outermost reflector 212 of balzed grating, is tilted with realizing
Color transition effect is presented when the optical anti-counterfeit element.Dyed layer 4 can be metal ink, common color ink, photochromatic printing ink
Etc. diversified forms, be attached to base material second surface 32 by the forms such as printing, being coated with.Dyed layer 4 can be a kind of color, also may be used
To be two kinds of combinations for even more crossing kind of color.When dyed layer 4 is multiple color, these colors can be random alignments or mix
Conjunction is alternatively arranged, without forming specific pattern.These colors can form new color by additive color or subtractive mixture of colours method.Coloring
When layer 4 is multiple color, these colors can pass through the special specific pattern of arrangement form, in the case, first surface
Micro-structure forming layer 2 on 31 should be with the different balzed grating, 211,231 at least two angles of inclination or inclined direction.
Under the above situation, by design be attached to balzed grating, 211,231 reflecting layer 212,232 and be attached to second surface 32
The switching of multiple color may be implemented in chromatograph 4.
In order to increase the diversity of 1 color of optical anti-counterfeit element, raising anti-counterfeit capability can be to grating group region 21,23
Balzed grating, 211,231 carry out the arrangement of a variety of inclination angles and/or inclined direction, form a variety of reflection directions to light.Together
When can carry out positioning overprinting to the dyed layer 4 for being attached to second surface 32, form the combination of multiple color, increase color change
Type.For example, as shown in fig. 7, optical anti-counterfeit element 1 includes base material 3, there is micro-structure shape in the first surface 31 of base material 3
Stratification 2, above-mentioned micro-structure forming layer 2 has the first area of the pattern 61, including grating group region 21 and microstructure area 22;
Second area of the pattern 62, including grating group region 23 and microstructure area 24;And the position 25 that grating group is interregional.Its
In, reflecting layer 212,232 of the grating group region 21,23 with balzed grating, 211,231 and thereon, such as aluminium.Microstructured area
Domain 22,24 has micro-structure, micro-structure surface without any coating material, it is exposed outside.Grating group area in first area of the pattern 61
231 inclination angle having the same of balzed grating, in grating group region 23 in the balzed grating, 211 in domain 21 and the second area of the pattern 62
Degree, but the inclined direction of the two is opposite.There is one layer of dyed layer 4, the wherein dyed layer 4 to wrap on the second surface 32 of base material 3
Containing two regions, the first coloring layer region 41 and second colours layer region 42.First coloring layer region 41 is green;Second coloring
Layer region 42 is red.Balzed grating, of the interregional position 25 of grating group with inclined direction, angle of inclination random distribution, should
There is reflecting layer on balzed grating, form a kind of granular sensation of metal ink.
By the way that the dyed layer of balzed grating, and multiple color with different inclined directions shown in Fig. 7 is designed cloth
Office, can obtain optical anti-counterfeit element 1 shown in Fig. 8.Wherein the first area of the pattern 61 has grating group region 21 and micro- in Fig. 7
The structure and material of structural region 22 adheres to the first coloring layer region 41 on the second surface 32 of base material 3.Second area of the pattern
62 structure and materials with grating group region 23 and microstructure area 24 in Fig. 7 adhere to the on the second surface 32 of base material 3
Two coloring layer regions 42.The interregional position 25 of grating group is flat site or the region with random pattern, is again covered with thereon
One layer of aluminium reflecting layer.
When the first viewing angle observes optical anti-counterfeit element 1 as shown in Figure 8, the first coloring layer region 41 and second
The light that chromatograph region 42 is reflected is blocked by the aluminium coat in grating group region 21 and grating group region 23, cannot enter observer
Eyes, therefore observer it is seen that aluminium color.The interregional position 25 of grating group is flat site in optical anti-counterfeit element 1
Or the region with random pattern, it is again covered with one layer of aluminium reflecting layer thereon.Therefore when the first viewing angle is observed, optical anti-counterfeiting
First area of the pattern 61 of element 1, the second area of the pattern 62 and interregional 25 color having the same of position of grating group, have
The color of the aluminium covered thereon.
When observer's optical anti-counterfeit element 1 from the second viewing angle, the color of the first coloring layer region 41 can be with
The aluminium reflecting layer 212 by the balzed grating, 211 in grating group region 21 and thereon does not stop, into observer's eyes;On the contrary, second
It colours the aluminium reflecting layer 232 of the color of layer region 42 by the balzed grating, 231 in grating group region 23 and thereon to stop, can not be seen
The person of examining observes, still shows the color of reflecting layer aluminium, and interregional 25 color keep of position of grating group is consistent.It is whole and
Speech, when the second viewing angle is observed, the first coloring layer pattern 41 is presented in the first area of the pattern 61 in optical anti-counterfeit element 1
Color forms the number " 1 " of green.
When third viewing angle observes optical anti-counterfeit element 1, the color of the first coloring layer region 41 can be by grating
The balzed grating, 211 in group region 21 and aluminium reflecting layer 212 thereon stop, cannot be introduced into observer's eyes, still show anti-
The color of layer aluminium is penetrated, interregional 25 color keep of position of grating group is consistent.On the contrary, the color of the second coloring layer region 42 cannot
Aluminium reflecting layer 232 by the balzed grating, 231 in grating group region 23 and thereon stops that observed person observes.It is observed in third
When angle is observed, the color of the second coloring layer pattern 42 is presented in the second area of the pattern 62 in optical anti-counterfeit element 1, is formed red
Digital " 0 ".
To sum up, when observer's consecutive variations continuous to third viewing angle from the second viewing angle, it is observed that first
There is the word " 1 " of green in part 1, and background is aluminium color;Word " 1 " disappears later, and uniform aluminium color is presented in element 1;Followed by,
There is red word " 0 " in element 1, and background is aluminium color.It realizes under different viewing angles, occurs in different zones different
The word of color.
Be illustrated in figure 9 a kind of embodiment of the invention, wherein the center of digital " 1 " and " 0 " be substantially at it is same
Position.In the case of the first viewing angle 1, the color of aluminium is presented in optical anti-counterfeit element 1, without apparent text information.When inclining
Oblique optical anti-counterfeit element 1 makes viewing angle when being the second viewing angle, due to the effect of micro-structure, digital " 1 " is presented, works as inclination
Optical anti-counterfeit element 1 makes viewing angle when being third viewing angle, and due to the effect of micro-structure, digital " 0 " is presented.
Include the optical anti-counterfeiting member as described in above-mentioned any embodiment the invention also discloses a kind of optical anti-counterfeiting product
Part.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (14)
1. a kind of optical anti-counterfeit element, which is characterized in that the optical anti-counterfeit element includes base material, micro-structure forming layer and coloring
Layer,
The base material is located on the dyed layer;
The micro-structure forming layer is located on the base material;
The micro-structure forming layer includes grating group region and microstructure area, the microstructure area and grating group region
It is adjacent;
Grating group region has balzed grating, adheres to reflecting layer on the balzed grating,;
The microstructure area has the micro-structure in the non-cohesive reflecting layer in surface;
Wherein, the depth-width ratio of the micro-structure is more than the depth-width ratio of the balzed grating,.
2. optical anti-counterfeit element according to claim 1, which is characterized in that each glittering in same grating group region
The angle of inclination of grating is identical with inclined direction.
3. optical anti-counterfeit element according to claim 1, which is characterized in that each glittering in same grating group region
The angle of inclination of grating and/or inclined direction are different.
4. optical anti-counterfeit element according to claim 1, which is characterized in that grating group region is in periodic distribution.
5. optical anti-counterfeit element according to claim 1, which is characterized in that grating group region in a predetermined direction with
Machine is distributed.
6. optical anti-counterfeit element according to claim 1, which is characterized in that balzed grating, in different grating groups region
Angle of inclination and/or inclined direction are different.
7. optical anti-counterfeit element according to claim 1, which is characterized in that the range of the balzed grating, at 10 μm extremely
100μm。
8. optical anti-counterfeit element according to claim 1, which is characterized in that grating group described in the micro-structure forming layer
Interregional position has the balzed grating, of angle of inclination and/or inclined direction random distribution, adheres on the balzed grating, anti-
Penetrate layer.
9. optical anti-counterfeit element according to any one of claims 1 to 8, which is characterized in that the reflecting layer include metal layer,
At least one of metal compound layer and Fabry-Perot interference device.
10. optical anti-counterfeit element according to any one of claims 1 to 8, which is characterized in that the optical anti-counterfeit element includes
Protective layer;The protective layer is located on the micro-structure forming layer.
11. optical anti-counterfeit element according to claim 10, which is characterized in that
The refractive index of the protective layer and the cambial refractive index of the micro-structure are same or similar seemingly.
12. optical anti-counterfeit element according to any one of claims 1 to 8, which is characterized in that the color of the dyed layer with it is attached
The color in the reflecting layer of the balzed grating, is different.
13. optical anti-counterfeit element according to any one of claims 1 to 8, which is characterized in that the color of the dyed layer with it is attached
The color in the reflecting layer of the balzed grating, is identical.
14. a kind of optical anti-counterfeiting product, which is characterized in that include the optical anti-counterfeit element as described in claim 1 to 13 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235274.2A CN108693582A (en) | 2017-04-12 | 2017-04-12 | A kind of optical anti-counterfeit element and product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235274.2A CN108693582A (en) | 2017-04-12 | 2017-04-12 | A kind of optical anti-counterfeit element and product |
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| Publication Number | Publication Date |
|---|---|
| CN108693582A true CN108693582A (en) | 2018-10-23 |
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| CN201710235274.2A Pending CN108693582A (en) | 2017-04-12 | 2017-04-12 | A kind of optical anti-counterfeit element and product |
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| CN109709637A (en) * | 2019-03-08 | 2019-05-03 | 上海宏盾防伪材料有限公司 | A kind of mixed light becomes the production method and device of device |
| CN110146947A (en) * | 2019-05-22 | 2019-08-20 | 复旦大学 | Balzed grating, and its manufacturing method with Fabry Perot chamber |
| CN111098620A (en) * | 2018-10-29 | 2020-05-05 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element, preparation method of optical anti-counterfeiting element and optical anti-counterfeiting product |
| CN111845148A (en) * | 2019-04-24 | 2020-10-30 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element and manufacturing method thereof |
| CN112389111A (en) * | 2019-08-19 | 2021-02-23 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element and optical anti-counterfeiting product |
| CN112572014A (en) * | 2019-09-30 | 2021-03-30 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element and anti-counterfeiting product |
| CN114450606A (en) * | 2019-09-25 | 2022-05-06 | 凸版印刷株式会社 | Color display, authentication medium, and method for determining authenticity of color display |
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| CN111098620A (en) * | 2018-10-29 | 2020-05-05 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element, preparation method of optical anti-counterfeiting element and optical anti-counterfeiting product |
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| CN110146947A (en) * | 2019-05-22 | 2019-08-20 | 复旦大学 | Balzed grating, and its manufacturing method with Fabry Perot chamber |
| CN112389111A (en) * | 2019-08-19 | 2021-02-23 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element and optical anti-counterfeiting product |
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Application publication date: 20181023 |