CN205643883U - Optical imaging film - Google Patents
Optical imaging film Download PDFInfo
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- CN205643883U CN205643883U CN201620222839.4U CN201620222839U CN205643883U CN 205643883 U CN205643883 U CN 205643883U CN 201620222839 U CN201620222839 U CN 201620222839U CN 205643883 U CN205643883 U CN 205643883U
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Abstract
The utility model relates to an optical coating technical field, it discloses an optical imaging film. This optical imaging film includes: contain back to first surface and the body of second surface, the focusing structure of the first surface setting of body, the second surface or the inside N layer picture and text structure that stacks gradually that sets up of body, wherein, each layer the picture and text structure all with thereby focusing structure looks adaptation forms the suspension image, focusing structure makes material and every layer the refracting index difference of making between the material of picture and text structure all is lighter than 0.8. Through the disclosed technical scheme of this application embodiment, can improve the effect of anti -counterfeiting of formation of image film, it is more diversified that the formation of image that also can make the formation of image film more has levels sense, color.
Description
Technical field
This utility model relates to optical film technology field, particularly relates to a kind of optical imaging film.
Background technology
Microlens array imaging technology is that the special imaging effect utilizing microlens array is to realize the amplification of micro-picture and text.
At present, the optical imaging film made by microlens array imaging technology is utilized to generally comprise transparent base layer, at transparent base layer
Upper surface arrange periodicity microlens array, the corresponding micro-pattern array of periodicity that arranges at the lower surface of transparent base layer.
Wherein, micro-pattern array be positioned at the focal plane of microlens array or its near, micro-pattern array and microlens array arrange substantially phase
With, More's amplification of micro-pattern array is realized by microlens array.
During realizing the application, utility model people finds that in prior art, at least there are the following problems:
The picture and text structure comparison of above-mentioned optical imaging film is single, thus causes the imaging of this imaging thin film to lack stereovision.
Utility model content
The purpose of the embodiment of the present application is to provide a kind of optical imaging film, to improve the imaging stereovision of imaging thin film.
For solving above-mentioned technical problem, the embodiment of the present application provides a kind of optical imaging film to be achieved in that
The embodiment of the present application provides a kind of optical imaging film, including:
Containing back to first surface and the body of second surface；
At the focusing structure that the first surface of described body is arranged；
In the N shell picture and text structure stacked gradually that the second surface of described body or the inside of described body are arranged, N is more than 1
Positive integer；Wherein,
Each layer described picture and text structure is all suitable with described focusing structure thus forms suspension image；
The refractive index difference making between material making material and every layer of described picture and text structure of described focusing structure is respectively less than 0.8.
In at least one embodiment, described body, described focusing structure and described N shell picture and text structure are structure as a whole.
In at least one embodiment, for making the polymer of described focusing structure and described N shell picture and text structure and for making
The polymer stating body is same polymer；Or for making the polymer of described focusing structure and for making described N shell
Picture and text structure is formed between the another kind of polymer of ground floor picture and text structure fusion part, and is used for making described in residue N shell
The polymer of picture and text structure is same with for making the polymer phase of described ground floor picture and text structure.
In at least one embodiment, described focusing structure make material and the folding making between material of every layer of described picture and text structure
The rate difference of penetrating is respectively less than 0.4.
In at least one embodiment, each layer described picture and text structure distance apart from the focal plane of described focusing structure is in described focusing
Between 0.7 times-1.3 times of the focal length of structure.
In at least one embodiment, the height of the suspension image that each layer described picture and text structure is formed is tied with the described picture and text of each layer
Distance between structure and described focusing structure meets following relational expression:
Wherein, diHeight for described suspension image；fiIt it is the distance between i-th layer of picture and text structure and described focusing structure；R
Radius of curvature for focusing structure；xiIt it is the horizontal coordinate of i-th layer of picture and text structure；xMLAHorizontal coordinate for focusing structure；I's
Span is 1～N.
In at least one embodiment, each layer described picture and text structure all contains multiple picture and text unit, is positioned in different layers picture and text structure
The projection in the horizontal plane of picture and text unit misaligned.
In at least one embodiment, each picture and text unit place horizontal level in each layer of picture and text structure and adjacent layer picture and text structure
In interval between two corresponding picture and text unit corresponding.
In at least one embodiment, each layer described picture and text structure all contains multiple picture and text unit, is positioned in same layer picture and text structure
The color of picture and text unit identical, the color of the picture and text unit being positioned in different layers picture and text structure is different.
In at least one embodiment, when described N is equal to 2, the second surface of described body is provided with groove or projection, with
Forming ground floor picture and text structure, in described ground floor picture and text structure, the side away from described focusing structure is formed with groove or projection,
To form second layer picture and text structure；
When described N is more than 2, the second surface of described body is provided with groove or projection, to form ground floor picture and text structure,
In described ground floor picture and text structure, the side away from described focusing structure is formed with groove or projection, to form second layer picture and text knot
Structure, in+1 layer of picture and text structure of jth, the side away from jth layer picture and text structure is formed with groove or projection, to form jth+2 layers figure
Literary composition structure, j is the positive integer between 1～N-2.
In at least one embodiment, described focusing structure includes convex lens, concavees lens, Fresnel Lenses or post lens.
In at least one embodiment, the light transmittance of described body is more than 0.7.
In at least one embodiment, described optical imaging film also includes:
Catoptric arrangement, is arranged at the outer surface of described focusing structure, and it is for reflecting the imaging of described multilamellar picture and text structure.
In at least one embodiment, described optical imaging film also includes:
Protection structure, is arranged at the outer surface of described focusing structure, and it is used for protecting described focusing structure, to avoid described focusing
Structure is polluted by external environment.
The technical scheme provided from above the embodiment of the present application, the embodiment of the present application by described body second surface or
The N shell picture and text structure stacked gradually that the inside of described body is arranged；Wherein, each layer described picture and text structure is respectively positioned on described poly-
In the areas imaging of close-burning structure, in described areas imaging, each layer described picture and text structure all can be formed outstanding by described focusing structure
Floating image, thus can realize improving the purpose of the imaging stereovision of imaging thin film.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or prior art
In description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only to remember in the application
Some embodiments carried, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The structural representation of a kind of optical imaging film that Fig. 1 provides for the embodiment of the present application；
A kind of structural representation of the first picture and text structure in the optical imaging film that Fig. 2 provides for the embodiment of the present application；
Another structural representation of first picture and text structure in the optical imaging film that Fig. 3 provides for the embodiment of the present application；
Another structural representation of the optical imaging film that Fig. 4 provides for the embodiment of the present application；
Another structural representation of the optical imaging film that Fig. 5 provides for the embodiment of the present application；
Another structural representation of the optical imaging film that Fig. 6 provides for the embodiment of the present application；
Fig. 7 is between the predeterminated position that in an embodiment, in a certain layer picture and text structure, the actual position of picture and text unit is corresponding
Horizontal level deviation schematic diagram；
The structural representation of the another kind of optical imaging film that Fig. 8 provides for the embodiment of the present application；
The imaging schematic diagram of multilamellar picture and text structure in the optical imaging film that Fig. 9 provides for the embodiment of the present application；
Another structural representation of the optical imaging film that Figure 10 provides for the embodiment of the present application；
Another structural representation of the optical imaging film that Figure 11 provides for the embodiment of the present application；
The flow chart of the preparation method of the optical imaging film that Figure 12 provides for the embodiment of the present application.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is described more fully.Accompanying drawing
In give better embodiment of the present utility model.But, this utility model can be realized by many different forms,
It is not limited to embodiment disclosed below.On the contrary, providing the purpose of these embodiments is to make public affairs of the present utility model
Open the more thorough comprehensive of content understanding.
It should be noted that be referred to as " being arranged at " another element when element, it can directly on another element or also
Element placed in the middle can be there is.When an element is considered as " connection " another element, and it can be directly to another
Element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", "left", "right" and class
As state for illustrative purposes only, being not offered as is unique embodiment.
Unless otherwise defined, all of technology used herein and scientific terminology and the skill belonging to technical field of the present utility model
The implication that art personnel are generally understood that is identical.It is intended merely to describe tool at term used in the description of the present utility model herein
The purpose of the embodiment of body, it is not intended that in limiting this utility model.Term as used herein "and/or" include one or
Arbitrary and all of combination of multiple relevant Listed Items.
The embodiment of the present application provides a kind of optical imaging film, it include containing back to first surface and the basis of second surface
Body；It is formed with focusing structure on the first surface of described body；The second surface of described body or be internally formed multilamellar picture and text knot
Structure.Each layer described picture and text structure is all suitable with described focusing structure thus forms suspension image；Making of described focusing structure
The refractive index difference made between material of material and every layer of described picture and text structure is respectively less than 0.8, and this can ensure that every layer of picture and text structure
Can be with normal imaging, and described multilamellar picture and text structure could be formed with the different images of level, thus can realize improving imaging
The purpose of the imaging stereovision of thin film.
Described each layer described picture and text structure is all suitable with described focusing structure thus forms suspension image and may refer to each layer of institute
State in the areas imaging that picture and text structure is respectively positioned on described focusing structure, each layer described picture and text equal energy of structure in described areas imaging
Suspension image is formed by described focusing structure.
The micro-optic imaging thin film provided the embodiment of the present application below in conjunction with the accompanying drawings is described in detail.
The embodiment of the present application additionally provides a kind of optical imaging film, as shown in Figure 1.This optical imaging film include body 1,
The focusing structure 2 being formed on the first surface of body 1 and the multilamellar picture and text structure 3 being formed on the second surface of body 1；
Multilamellar picture and text structure 3 is by focusing structure 2 imaging.Multilamellar picture and text structure 3 can be N shell picture and text structure, and N is more than 1
Positive integer.Fig. 1 shows three layers of picture and text structure, the i.e. first picture and text structure the 31, second picture and text structure 32 and the 3rd picture and text
Structure 33, but it is not limited to this three layers of picture and text structures.Wherein, the first picture and text structure 31 can be directly at the second table of body 1
Formed on face, and the second picture and text structure 32 is formed in the first picture and text structure 31 outer surface away from focusing structure 2, the 3rd figure
Literary composition structure 33 is formed at the second picture and text structure 32 outer surface away from middle focusing structure 2.
The material of making of body 1 can be polymer.Described polymer can be a kind of polymer, it is also possible to be two kinds of polymer.
Each polymer can be single polymer, it is also possible to for the mixing become by multiple single polymer mixed that will not react
Polymer.Described polymer can be PET (polyethylene terephthalate, polyethylene terephthalate),
PVC (Polyvinyl chloride, polrvinyl chloride), PC (Polycarbonate, Merlon) or PMMA (Polymethyl
Methacrylate, polymethyl methacrylate) etc. resin material, it is also possible to for UV (Ultraviolet Rays) glue, OCA
Optic-solidified adhesive or heat-curable glue such as (Optically Clear Adhesive).The light transmittance 1 of body can be more than 70%, or body 1
For transparent color or visually show transparent.
When described polymer is a kind of polymer, focusing structure 2 and multilamellar picture and text structure 3 can be respectively formed in phase in this body 1
Back to first surface and second surface, it is also possible to be respectively formed in first surface and the inside of body 1.Now, body 1 is one
One polymer layer, polymer therein can be uniformly distributed, it is also possible to uneven distribution.Focusing structure 2 and for formed the first figure
First carrying structure 310 (as shown in Fig. 2-Fig. 3) of literary composition structure 31 is formed at same polymeric layer, therefore at focusing structure 2 and the
Separating surface is not had, so that focusing structure 2 and the first picture and text structure 31 formed are integral between one carrying structure 310
Structure, as shown in Figure 4.Additionally, for forming the second carrying structure of the second picture and text structure and for forming the 3rd picture and text structure
The 3rd carrying structure make material the most all carry with first structure make material identical time, these three layers carry between structures also
There is no separating surface, thus the entirety that body, focusing structure and this three layers of picture and text structures are formed can be considered as integrative-structure.
When described polymer is two kinds of polymer, focusing structure 2 can be formed at the first surface of a kind of polymer, the first picture and text
Structure 31 can be formed at the second surface of another kind of polymer or its inside, and be used for making the second picture and text structure 32 and the 3rd
The polymer of picture and text structure 33 is same with for making the polymer phase of ground floor picture and text structure 31.Refraction between both polymer
Rate difference is less than 0.8 or 0.4.Adjacent regions between both polymer is formed with fusion part, therefore, focusing structure 2 and
One picture and text structure 31 can be considered as integrative-structure, at focusing structure 2 with for forming the first carrying structure of the first picture and text structure 31
Do not have between 310 on separating surface, or the cross section of imaging thin film do not exist between focusing structure 2 and the first carrying structure 310 bright
Aobvious layer and the demarcation line of layer or the demarcation line presented are the demarcation line that rule is neat.Described fusion part can be both
Polymer merges the region formed according to preset ratio.Described preset ratio can be N:M, and wherein N and M is respectively focusing structure
The content of the 2 and first adjacent regions junction both polymer carrying structure, its value can be all 0～100%, but not wrap
Include 0 and 100%.It should be noted that the content of a kind of polymer described in focusing structure 2 is 100%；In first carrying structure
The content of described another kind of polymer is 100%.Described adjacent regions can be to utilize mould extruding both polymer to be formed poly-
When close-burning structure 2 and the first carrying structure 310, the contact site between both polymer.Form the second picture and text structure and the 3rd figure
The polymer of literary composition structure is same with the polymer phase forming the first picture and text structure.So, body, focusing structure and this three layers of picture and text
The entirety that structure is formed can also be considered as integrative-structure.
For formed each layer of picture and text structure described carrying structure can in groove shapes (as shown in Figure 2) or convex shape (as
Shown in Fig. 3).It should be noted that for purposes of illustration only, Fig. 2-Fig. 3 illustrate only the first carrying structure, not shown second carrying
Structure and the 3rd carrying structure, but the shape of these three carrying structure can be identical, and such as three is groove；Can not also phase
With, the such as first carrying structure and the second carrying structure are groove, and the 3rd carrying structure is protruding.At Fig. 4 and follow-up other
Demarcation line shown between these three layers of picture and text structures in figure is only for the purposes of explanation, for forming holding of these three layers of picture and text structures
Carry structure make material identical time, not obvious demarcation line between these three layers of picture and text structures in material object.Additionally, focus on
The refractive index difference making between material making material and every layer of described picture and text structure of structure 2 all can be less than 0.4, in order to
Each layer picture and text structure can be with normal imaging.
Focusing structure 2 may be used for picture and text structure is carried out imaging, and it can include one or more focusing unit.Described focusing
Unit can be convex lens, concavees lens, Fresnel Lenses or post lens etc..Between can not existing between the plurality of focusing unit
Gap (as shown in Figure 1), in order to reduce the overall volume of described imaging thin film.Can also exist between the plurality of focusing unit
Gap (as shown in Figure 5), in order to can ensure that the integrity of cut focusing unit when cutting described imaging thin film, thus
Can ensure that the follow-up imaging effect of focusing unit.The plurality of focusing unit can be hexagonal array, quadrate array or its
The random array etc. of its shape.
Focusing structure 2 can be formed at the first surface of body 1, and concrete can be that the focusing unit in focusing structure 2 is formed
First surface in body 1.
Each layer of picture and text structure in multilamellar picture and text structure 3 may each comprise one or more identical or different picture and text unit.Described
Picture and text unit can be pattern or micro-pattern (i.e. the pattern of micron level), such as figure, word, numeral, grid, landscape painting
And/or the pattern of the easily recognizable shape such as logo.Described different picture and text unit can be varying in size of (micro-) pattern；Also may be used
To be the shape difference of (micro-) pattern；Can also is that the composition of (micro-) pattern is different, such as first (micro-) pattern is public
Department's title, second (micro-) pattern is company Logo.Described multilamellar picture and text structure 3 is by the imaging of described focusing structure 2, permissible
It is not understood as described picture and text unit by corresponding focusing unit imaging.The color of the picture and text unit being positioned in same layer picture and text structure
Can be identical, it is also possible to different；The color of the picture and text unit in different layers picture and text structure can be identical, it is also possible to different.
Additionally, the projection that each layer of picture and text structure in multilamellar picture and text structure 3 is in same level is misaligned, this is appreciated that
The most misaligned for the projection in same level of all picture and text unit in different layers picture and text structure, it is understood that for difference
The all picture and text unit in layer picture and text structure projection section in same level overlaps.It is positioned at the figure in different layers picture and text structure
Literary composition unit projection in same level is the most misaligned it can be understood as the picture and text unit in N-1 layer picture and text structure does not has
Covering corresponding picture and text unit in n-th layer picture and text structure, picture and text unit corresponding in different layers picture and text structure is in same level
Projection stagger completely.The projection in the horizontal plane of the described picture and text unit being positioned in different layers picture and text structure is complete misaligned permissible
Including each picture and text unit place horizontal level in each layer of picture and text structure and two corresponding picture and text unit in adjacent layer picture and text structure
Between interval corresponding, as shown in Figure 1.The projection in the horizontal plane of the described picture and text unit being positioned in different layers picture and text structure
The each picture and text unit place horizontal level that can include in each layer of picture and text structure that partially overlaps is corresponding with adjacent layer picture and text structure
Picture and text unit place horizontal level partly overlap, as shown in Figure 6；Component Wen Dan in the middle part of adjacent layer picture and text structure can also be included
Unit's projection in same level coincides, the projection in same level of the part picture and text unit is staggered.
In one embodiment, the predeterminated position that the actual position of each picture and text unit in each layer of picture and text structure is corresponding
Between horizontal level deviation delta can be less than 10 microns, as shown in Figure 7.In Fig. 7, the position corresponding to dotted line a is a certain
The predeterminated position of m-th picture and text unit in layer picture and text structure, the position corresponding to dotted line b is m-th figure in this layer of picture and text structure
The actual position of literary composition unit, m is positive integer.Described predeterminated position may refer to each layer of picture and text structure position set in advance
Put.
When described first carrying structure is (micro-) groove, the first picture and text structure 31 can be to utilize mould at the second table of body
Form one or more described (micro-) groove on face, then in described (micro-) groove, insert the first carrier and formed.Institute
Stating the first carrier can be that the material made from described body exists the material of refractive index difference, including coloured material, dye to light
Color material, metal material or conductive material etc., the colored ink such as the most glossy ink or nano ink.It should be noted that institute
The color stating the first carrier can be different with the color of described body, in order to people observe picture and text structure imaging time,
Can significantly tell the pattern in picture and text structure.
Described first carry structure be (micro-) projection time, the first picture and text structure 31 can also is that and utilizing mould at the of body
Form one or more described (micro-) on two surfaces protruding, then the first carrier is set on the top that described (micro-) is protruding
Formed.First picture and text structure 31 also can also is that by carrying out what the mode such as intaglio printing or inkjet printing was formed on body.
Second picture and text structure 32 can be formed in the following manner: forms the first picture and text structure 31 on the second surface of body 1
After, the outer surface of the first picture and text structure 31 is coated with one layer of polymeric (such as, UV glue)；Then mould is utilized to be coated with
Polymer on form one or more (micro-) groove；Finally in (micro-) groove formed, insert the second carrier, shape
Become the second picture and text structure.Second picture and text structure 32 can also is that to utilize mould to be formed on the polymer being coated with one or more
(micro-) is protruding, then arranges the second carrier on the top that described (micro-) is protruding and is formed.Second picture and text structure 32 may be used
To be formed by carrying out the mode such as intaglio printing or inkjet printing in the first picture and text structure 31.
Second carrier can also be the materials such as coloured material, coloring material, metal material or conductive material, but its color is permissible
Different from the first carrier.Described micro groove or microprotrusion may refer to groove or the projection of micron level.
3rd picture and text structure 33 is similar with the generation type of the second picture and text structure 32, no longer goes to live in the household of one's in-laws on getting married at this and chats.If it is desired, can be by
According to the mode of above-mentioned formation the second picture and text structure, form more layers picture and text structure.For picture and text structure more than two-layer, from the 3rd
Layer picture and text structure starts, and each layer of picture and text structure can be by arranging groove or projection in the respective side of in type picture and text structure
Formed.Such as, in+1 layer of picture and text structure of jth, the side away from jth layer picture and text structure is formed with groove or projection, to form
J+2 layer picture and text structure, j is the positive integer between 1～N-2.
It should be noted that picture and text structure herein is not limited to only be filled with the groove part of carrier, it is also possible to include
Groove vicinity part.
Additionally, multilamellar picture and text structure 3 is possible not only to be formed in body 1 on the second surface away from focusing structure 2, also can be with shape
Become the inside of body 1, as shown in Figure 8.For this structure shown in Fig. 8, can be formed recessed by the surface at polymer
Groove, inserts the first carrier the most in a groove and forms the first picture and text structure, then should in the surface coating forming the first picture and text structure
Plant polymer, and at this polymer away from the surface formation groove of the first picture and text structure, insert the second carrier in a groove and formed
Second picture and text structure, by that analogy, sequentially forms other layer of picture and text structure, and on the surface of last layer of picture and text structure, coating is same
Polymer and solidify, the multilamellar picture and text structure so formed is positioned at the inside of body, and due to each layer of picture and text structure two
Side is all similar polymers, and therefore surface, multilamellar picture and text structure place can disappear because of polymer fusion, will not shape in body interior
Become separating surface, thus focusing structure and multilamellar picture and text structure still can be considered as integrative-structure.
Multilamellar picture and text structure can be suitable with focusing structure it can be understood as multilamellar picture and text structure can pass through focusing structure imaging.
Multilamellar picture and text structure suitable with focusing structure can include that multilamellar picture and text structure matches with the position of focusing structure.
Such as, in multilamellar picture and text structure, distance between each layer of picture and text structure and focusing structure is the focal length of focusing unit in focusing structure
0.7 times～1.3 times.Such as, the focal length of focusing unit is 150um, then the first picture and text structure to the distance of focusing structure can be
110um；Second picture and text structure can be 150um to the distance of focusing structure；3rd picture and text structure is permissible to the distance of focusing structure
For 190um.Multilamellar picture and text structure and the suitable focusing unit that can also include in focusing structure 2 of focusing structure 2 and multilamellar picture and text
In structure, the picture and text unit of each layer of picture and text structure is correspondingly arranged, and this is conducive to when cutting into as thin film, it is ensured that cut
The each imaging film unit become at least contains a complete focusing unit and picture and text unit.
Multilamellar picture and text structure may be located at the focal plane of focusing structure or its near, it can carry out imaging by focusing structure,
Side relative with multilamellar picture and text structure in focusing structure is it is observed that the suspension image of multilamellar picture and text structure.The suspension formed
Distance between height and each layer of picture and text structure and the focusing structure of image meets following relational expression:
Wherein, diHeight for described suspension image；fiIt is the distance between i-th layer of picture and text structure and described focusing structure, its
It can be the focal length of focusing structure；R is the radius of curvature of focusing structure；xiIt it is the horizontal coordinate of i-th layer of picture and text structure；xMLAFor
The horizontal coordinate of focusing structure；The span of i is 1～N.WhenTime, the suspension image amplified will be obtained.
In a detailed description of the invention, fiFor the focal length of focusing unit in focusing structure；R is the song of focusing unit in focusing structure
Rate radius；xiIt it is the horizontal coordinate of picture and text unit corresponding with focusing unit in i-th layer of picture and text structure；xMLAFor poly-in focusing structure
Burnt unit horizontal coordinate.
Fig. 9 shows that multilamellar picture and text structure is by the amplification suspension image formed after focusing structure in actual applications.
In the top of focusing structure and multilamellar picture and text structure, the distance between the top of the nearest one layer of picture and text structure of focusing structure can
Think 2～150 microns.It can be understood as multilamellar picture and text structure is embedding when distance between focusing structure and multilamellar picture and text structure is the least
It is located in focusing structure.Distance between focusing structure and multilamellar picture and text structure is the least, then the thickness of imaging thin film is the thinnest, and this is not
Only can be cost-effective, it is easier to when thermoprint cut off.
By foregoing description it can be seen that the embodiment of the present application is by arranging multilamellar picture and text structure on the body of imaging thin film, and
And it is misaligned to be positioned at the projection in the horizontal plane of the picture and text unit in different layers picture and text structure, this can ensure that every layer of picture and text structure can
With normal imaging, and described multilamellar picture and text structure could be formed with the different images of level, thus be possible not only to realization and improve into
Purpose as the imaging stereovision of thin film, it is also possible to imaging suspension, also can also improve antifalse effect.And, different layers picture and text
In structure, the color of picture and text unit is different, and this can make the color colouring of imaging thin film, so that apply this imaging thin film
Product is more attractive in appearance, abundant, this experience effect being conducive to improving user.Additionally, focusing structure in the embodiment of the present application and
First picture and text structure can be structure as a whole, and does not has substrate layer, and this can reduce the thickness of imaging thin film, and this imaging thin film
Poor mechanical properties, this make this imaging thin film may be easy to when thermoprint cut off.
In another embodiment, this imaging thin film can also include catoptric arrangement 4, as shown in Figure 10.Catoptric arrangement 4 can set
It is placed in focusing structure 2 outer surface away from multilamellar picture and text structure 3.Catoptric arrangement 4 may be used for multilamellar picture and text structure 3
Imaging is reflected, so that in multilamellar side, picture and text structure 3 place it is observed that the imaging of multilamellar picture and text structure 3,
This experience effect being conducive to improving user.
In another embodiment, this imaging thin film can also include protecting structure 5, as shown in figure 11.Protection structure 5 can set
Being placed in the outer surface of focusing structure 2, focusing structure part can be covered or be completely covered by it；Its light transmittance can be more than 70%.
Protection structure 5 may be used for protecting focusing structure 2 to avoid it to be polluted by external environment, and it is thin that this is conducive to improving this imaging
The service life of film.
The embodiment of the present application additionally provides a kind of method preparing above-mentioned optical imaging film, as shown in figure 12.The method include with
Lower step:
S1: obtain the first polymer in colloidal state under normal temperature and pressure.
Described first polymer can be a kind of polymer, it is also possible to be two kinds of polymer.Each polymer may each be single
Polymer, such as curable resin or UV glue etc., it is also possible to for the mixing of multiple polymer that will not react each other
Polymer.
Method of the prior art can be utilized to obtain described first polymer, no longer go to live in the household of one's in-laws on getting married at this and chat.
S2: in the first acquired polymer back to the first side and the second side formed respectively focusing structure and the first picture and text knot
Structure.
Obtaining after described first polymer, can in described first polymer back to the first side and the second side formed respectively
Focusing structure and the first picture and text structure.Concrete,
In one embodiment, this step can include following sub-step:
S2A: use first mould with lenticule pattern that the first side of described first polymer is extruded, formed at the beginning of focusing on
Walk structure, and use has the first the second mould presetting convex pattern and extrudes the second side of described polymer, is formed
First carrying preliminary structure.
Described focusing preliminary structure and described first carrying preliminary structure form integrative-structure during extruding.At the beginning of described focusing
Step structure can be containing one or more lenticular microlens arrays.Described first carrying preliminary structure can containing one or
Multiple micro grooves.
S2B: the first polymer being formed with described focusing preliminary structure and described first carrying preliminary structure is solidified, shape
Become focusing structure, the first carrying structure and body.
After forming described focusing preliminary structure and described first carrying preliminary structure, can be to described focusing preliminary structure and described
First carrying preliminary structure solidifies, and forms focusing structure and the first carrying structure respectively.
Described focusing preliminary structure and described first carrying preliminary structure are carried out solidification can be directly to described focusing preliminary structure
Heat cure or photocuring is carried out with described first carrying preliminary structure；Can also be by described first mould and/or described second
Mould uses irradiation source or thermal source, realizes described focusing preliminary structure and the solidification of described first carrying preliminary structure.Such as,
It is UV glue at described polymer, uses ultraviolet light to irradiate, by solid to described focusing preliminary structure and described first carrying preliminary structure
Change and form focusing structure and the first carrying structure.
S2C: carry in structure described first and insert the first carrier, forms the first picture and text structure, described first carrier with
The refractive index of described polymer is different.
After obtaining described first carrying structure, can carry in structure described first and insert the first carrier, can be to first
Carrier carries out drying or the solidification measure such as sintering, forms the first picture and text structure.First carrier can be with the folding of described polymer
Rate of penetrating is different, and its color can also be different from the color of described polymer, in order to observe.
In another embodiment, this step can include following sub-step:
S2A ': use first mould with lenticule pattern to extrude the first side of described polymer, is formed and focuses on preliminary knot
Structure, and use the 3rd mould with the first pre-groove pattern that the second side of described polymer is extruded, form first
Carrying preliminary structure.
Described focusing preliminary structure and described first carrying preliminary structure form integrative-structure during extruding.At the beginning of described focusing
Step structure can be containing one or more lenticular microlens arrays.Described first carrying preliminary structure can containing one or
Multiple microprotrusion.
S2B ': the first polymer being formed with described focusing preliminary structure and described first carrying preliminary structure is solidified, shape
Become focusing structure, the first carrying structure and body.
After forming described focusing preliminary structure and described first carrying preliminary structure, can be to described focusing preliminary structure and described
First carrying preliminary structure solidifies, and forms focusing structure and the first carrying structure respectively.
Described focusing preliminary structure and described first carrying preliminary structure are carried out solidification can be directly to described focusing preliminary structure
Heat cure or photocuring is carried out with described first carrying preliminary structure；Can also be by described first mould and/or the described 3rd
Mould uses irradiation source or thermal source, realizes described focusing preliminary structure and the solidification of described first carrying preliminary structure.Such as,
It is UV glue at described polymer, uses ultraviolet light to irradiate, by protruding to described focusing preliminary structure and the described first preliminary knot of carrying
Structure solidify to form focusing structure and the first carrying structure.
S2C ': spray printing the first carrier on the described first top carrying structure, to form the first picture and text structure.
After obtaining described first carrying structure, can on the described first top outer surface carrying structure inkjet inks etc. first
Carrier, then dries the ink of institute's spray printing or the solidification measure such as sintering, forms the first picture and text structure.The oil of institute's spray printing
Ink can be different from the refractive index of described polymer, and its color can also be different from the color of described polymer, in order to observe.
S3: obtain the second polymer in colloidal state under normal temperature and pressure.
Described second polymer can be same with described first polymer phase, it is also possible to differs.
S4: the outer surface away from described focusing structure forms the second picture and text structure in described first picture and text structure.
In one embodiment, after obtaining the first picture and text structure, the outer surface of the first picture and text structure is coated with one layer described second
Polymer (such as, UV glue)；Then can utilize and have second and preset the 4th mould of the convex pattern polymer to being coated with
In imprint away from the side of the first picture and text structure, form the second carrying preliminary structure；Then the second carrying preliminary structure is entered
Row solidification；Finally in the second carrying structure formed, insert the second carrier, form the second picture and text structure.Second carrier
Color can be different from the color of the first carrier.
In another embodiment, after obtaining the first picture and text structure, the outer surface of the first picture and text structure is coated with one layer described the
Dimerization compound (such as, UV glue)；Then can utilize in the polymer to being coated with of the 5th mould with the second indentation pattern
Side away from the first picture and text structure imprints, and forms the second carrying preliminary structure；Then the second carrying preliminary structure is carried out
Solidification, forms the second carrying structure；Finally inkjet inks in the second carrying structural outer surface formed, then to institute's spray printing
Ink carry out drying or the solidification measure such as sintering, form the second picture and text structure.
Form the detailed process of the second picture and text structure and be referred to above-mentioned to forming the associated description of the first picture and text structure, at this no longer
Go to live in the household of one's in-laws on getting married and chat.
S5: according to the method forming described second picture and text structure, sequentially form the residue N-2 layer picture and text structure of stacking, obtain light
Study as thin film.
After obtaining the second picture and text structure, can according to the method forming the second picture and text structure on the outer surface of the first picture and text structure,
The outer surface of the second picture and text structure is formed the 3rd picture and text structure, on the outer surface of the 3rd picture and text structure, then forms the 4th figure
Literary composition structure, by that analogy, until forming n-th layer picture and text structure on the outer surface of N-1 layer picture and text structure, completing light and studying
Preparation as thin film.
In above-mentioned steps, all moulds may each be the metal dies such as nickel, aluminum or rustless steel, it is also possible to is PC or PET etc.
Nonmetal mould.
In addition it is also possible to use the mode such as intaglio printing or inkjet printing come the first acquired polymer phase back to the first side
Described focusing structure and described first picture and text structure is formed respectively with the second side；The generation type of residue N-1 layer picture and text structure also may be used
Select intaglio printing or the generation type of inkjet printing.It is to say, the molding mode of focusing structure and each layer picture and text structure is respectively
Can be selected for any one mode in above-mentioned impressing, intaglio printing or inkjet printing.Namely focusing structure and each layer of picture and text structure
Identical molding mode can be used, it is also possible to select different molding modes respectively.Preferably, focusing structure and each layer of figure
Literary composition structure uses identical molding mode.Concrete forming process is referred to associated description of the prior art, no longer goes to live in the household of one's in-laws on getting married at this and chats.
When using intaglio printing and inkjet printing, the color of each layer picture and text structure can also be multiple color so that whole suspension image will
Present solid, multilamellar, colorful visual effect, there is good decorative effect and/or the highest antifalse effect.
By above-mentioned steps it can be seen that the optical imaging film prepared by the embodiment of the present application has multilamellar picture and text structure, this
It is possible not only to the purpose realizing improving antifalse effect, it is also possible to make prepared imaging thin film have more stereovision.It is additionally, since
The color of carrier is different, thus the color of different layers picture and text structure is different, and this can make the color colouring of imaging thin film, from
And make the product applying this imaging thin film more attractive in appearance, abundant.Additionally, focusing structure prepared in the embodiment of the present application and
First picture and text structure can be structure as a whole, and does not has substrate layer, and this can reduce the thickness of imaging thin film.
It should be noted that focusing structure and multilamellar picture and text structure are structure as a whole and may refer to focusing structure in the embodiment of the present application
Do not have with multilamellar picture and text structure and do not deposit between focusing structure and multilamellar picture and text structure on separating surface, or the cross section of imaging thin film
It it is the neat demarcation line of rule in the demarcation line of obvious layer and layer or the demarcation line that presented.
Any digital value that the application quotes all includes between lower limit to higher limit with the lower value of an incremented and upper value
, between any lower value and any much higher value, there is the interval of at least two unit in all values.For example, if illustrated
The quantity of one parts or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20 to
80, more preferably from 30 to 70, then list such as 15 to 85,22 during purpose illustrates that this description the most clearly and arrive
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think unit be 0.0001,0.001,0.01,
0.1.These only want the example clearly expressed, it is believed that all of the numerical value enumerated between minimum and peak can
Can combination be expressly set forth in this description the most in a similar manner.
Except as otherwise noted, all scopes all include all numerals between end points and end points." about " being used together with scope
Or " approximation " is suitable for two end points of this scope.Thus, " about 20 to 30 " are intended to cover " about 20 to about 30 ", extremely
Include the end points indicated less.
The all articles disclosed and reference material, including patent application and publication, pass through to quote to be hereby incorporated by for various purposes.
Describe combination term " substantially by ... constitute " should include determined by element, composition, parts or step and essentially without
Affect other elements, composition, parts or the step of the basic novel feature of this combination.Use term " to comprise " or " including " retouches
State the combination of element here, composition, parts or step it is also contemplated that be substantially made up of these elements, composition, parts or step
Embodiment.Here by use term " can ", it is intended to illustrate that described any attribute that " permissible " includes is all optional
's.
Multiple elements, composition, parts or step can be provided by single integrated component, composition, parts or step.Alternatively,
Single integrated component, composition, parts or step can be divided into multiple elements, composition, parts or the step of separation.It is used for retouching
State the open "a" or "an" of element, composition, parts or step do not say in order to get rid of other element, composition, parts or
Step.
Each embodiment in this specification all uses the mode gone forward one by one to describe, and between each embodiment, identical similar part is mutual
Seeing, what each embodiment stressed is the difference with other embodiments.
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, new to this practicality above in conjunction with accompanying drawing
The detailed description of the invention of type is described in detail.Superincumbent description elaborates a lot of detail so that fully understanding this reality
With novel.But this utility model can be implemented to be much different from alternate manner described above, and those skilled in the art can
To do similar improvement in the case of this utility model intension, therefore this utility model is not embodied as by disclosed above
The restriction of example.Further, each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if the combination of these technical characteristics
There is not contradiction, be all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but not
Therefore the restriction to this utility model the scope of the claims can be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into this practicality
Novel protection domain.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (14)
1. an optical imaging film, it is characterised in that including:
Containing back to first surface and the body of second surface；
At the focusing structure that the first surface of described body is arranged；
In the N shell picture and text structure stacked gradually that the second surface of described body or the inside of described body are arranged, N is more than 1
Positive integer；Wherein,
Each layer described picture and text structure is all suitable with described focusing structure thus forms suspension image；
The refractive index difference making between material making material and every layer of described picture and text structure of described focusing structure is respectively less than 0.8.
Optical imaging film the most according to claim 1, it is characterised in that described body, described focusing structure and described
N shell picture and text structure is structure as a whole.
Optical imaging film the most according to claim 2, it is characterised in that for making the polymer of described focusing structure
And for making, described N shell picture and text structure is formed with between the another kind of polymer of ground floor picture and text structure fusion part, and use
Same with for making the polymer phase of described ground floor picture and text structure in making the polymer of picture and text structure described in residue N shell.
Optical imaging film the most according to claim 1, it is characterised in that described focusing structure make material and every layer
The refractive index difference made between material of described picture and text structure is respectively less than 0.4.
Optical imaging film the most according to claim 1, it is characterised in that each layer described picture and text structure is apart from described poly-
The distance of the focal plane of close-burning structure is between 0.7 times-1.3 times of the focal length of described focusing structure.
Optical imaging film the most according to claim 1, it is characterised in that it is outstanding that each layer described picture and text structure is formed
Distance between height and each layer described picture and text structure and the described focusing structure of floating image meets following relational expression:
Wherein, diHeight for described suspension image；fiIt it is the distance between i-th layer of picture and text structure and described focusing structure；R
Radius of curvature for focusing structure；xiIt it is the horizontal coordinate of i-th layer of picture and text structure；xMLAHorizontal coordinate for focusing structure；i
Span be 1～N.
Optical imaging film the most according to claim 1, it is characterised in that each layer described picture and text structure all contains multiple
Picture and text unit, is positioned at the projection in the horizontal plane of the picture and text unit in different layers picture and text structure misaligned.
Optical imaging film the most according to claim 7, it is characterised in that each picture and text list in each layer of picture and text structure
In unit's place horizontal level and adjacent layer picture and text structure, the interval between two corresponding picture and text unit is corresponding.
Optical imaging film the most according to claim 1, it is characterised in that each layer described picture and text structure all contains multiple
Picture and text unit, the color of the picture and text unit being positioned in same layer picture and text structure is identical, is positioned at the picture and text list in different layers picture and text structure
The color of unit is different.
Optical imaging film the most according to claim 1 and 2, it is characterised in that
When described N is equal to 2, the second surface of described body is provided with groove or projection, to form ground floor picture and text structure,
In described ground floor picture and text structure, the side away from described focusing structure is formed with groove or projection, to form second layer picture and text knot
Structure；
When described N is more than 2, the second surface of described body is provided with groove or projection, to form ground floor picture and text structure,
In described ground floor picture and text structure, the side away from described focusing structure is formed with groove or projection, to form second layer picture and text knot
Structure, in+1 layer of picture and text structure of jth, the side away from jth layer picture and text structure is formed with groove or projection, to form jth+2 layers
Picture and text structure, j is the positive integer between 1～N-2.
11. according to the optical imaging film described in any one of claim 1-9, it is characterised in that described focusing structure includes convex lens
Mirror, concavees lens, Fresnel Lenses or post lens.
12. according to the optical imaging film described in any one of claim 1-9, it is characterised in that the light transmittance of described body is more than
0.7。
13. according to the optical imaging film described in any one of claim 1-9, it is characterised in that described optical imaging film also wraps
Include:
Catoptric arrangement, is arranged at the outer surface of described focusing structure, and it is for reflecting the imaging of described multilamellar picture and text structure.
14. according to the optical imaging film described in any one of claim 1-9, it is characterised in that described optical imaging film also wraps
Include:
Protection structure, is arranged at the outer surface of described focusing structure, and it is used for protecting described focusing structure, to avoid described focusing
Structure is polluted by external environment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222839.4U CN205643883U (en) | 2016-03-22 | 2016-03-22 | Optical imaging film |
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|---|---|---|---|
| CN201620222839.4U CN205643883U (en) | 2016-03-22 | 2016-03-22 | Optical imaging film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017162006A1 (en) * | 2016-03-22 | 2017-09-28 | 昇印光电（昆山）股份有限公司 | Optical imaging film and preparation method therefor |
| CN109551828A (en) * | 2017-09-26 | 2019-04-02 | 昇印光电（昆山）股份有限公司 | Optics decoration |
| CN109870821A (en) * | 2019-04-03 | 2019-06-11 | 冯煜 | A kind of focusing structure and the method for realizing naked eye 3D display |
| CN112505918A (en) * | 2019-08-26 | 2021-03-16 | 昇印光电（昆山）股份有限公司 | Optical film and electronic device case |
-
2016
- 2016-03-22 CN CN201620222839.4U patent/CN205643883U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017162006A1 (en) * | 2016-03-22 | 2017-09-28 | 昇印光电（昆山）股份有限公司 | Optical imaging film and preparation method therefor |
| US10823978B2 (en) | 2016-03-22 | 2020-11-03 | Shine Optoelectronics (Kunshan) Co., Ltd. | Optical imaging film and preparation method therefor |
| CN109551828A (en) * | 2017-09-26 | 2019-04-02 | 昇印光电（昆山）股份有限公司 | Optics decoration |
| CN109870821A (en) * | 2019-04-03 | 2019-06-11 | 冯煜 | A kind of focusing structure and the method for realizing naked eye 3D display |
| CN112505918A (en) * | 2019-08-26 | 2021-03-16 | 昇印光电（昆山）股份有限公司 | Optical film and electronic device case |
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