CN112505939A - Imaging optical film and decorative film - Google Patents
Imaging optical film and decorative film Download PDFInfo
- Publication number
- CN112505939A CN112505939A CN201910792502.5A CN201910792502A CN112505939A CN 112505939 A CN112505939 A CN 112505939A CN 201910792502 A CN201910792502 A CN 201910792502A CN 112505939 A CN112505939 A CN 112505939A
- Authority
- CN
- China
- Prior art keywords
- layer
- imaging
- image
- text
- optical film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The application relates to the technical field of optical imaging films, and provides an imaging optical film and a decorative film, wherein the imaging optical film comprises a micro image-text layer and an imaging layer, the micro image-text layer is provided with three-dimensional micro image-text, and the thickness of the three-dimensional micro image-text is more than or equal to 5 mu m along the thickness direction of the imaging optical film; the imaging layer has an imaging unit; the three-dimensional micro-image-text is positioned in the focal depth range of the imaging unit and is arranged corresponding to the imaging unit, so that the imaging layer can form an image of a three-dimensional structure on the micro-image-text layer. The imaging optical film is arranged on the base layer through the bonding layer, and the reflecting layer and the coloring layer are sequentially arranged on one side of the imaging layer, which is far away from the spacing layer. Compared with the optical imaging film in the technology, the imaging optical film and the decorative film have the advantages of capability of presenting a three-dimensional image, more prominent imaging effect and more intuition.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of optical films, in particular to an imaging optical film and a decorative film.
[ background of the invention ]
The optical imaging film is generally based on a moire imaging technology, an imaging layer is arranged on the upper surface of a transparent spacing layer, a corresponding micro image-text layer is arranged on the lower surface of a transparent base layer, a micro pattern array in the micro image-text layer is located at a focal plane of a micro lens array in the imaging layer, the micro pattern array and the micro lens array are arranged correspondingly, and an image with a certain depth of field is displayed by moire amplified imaging of the micro pattern array through the micro lens array.
However, the optical imaging film in the prior art has a single imaging effect, and the imaging effect is generally a planar moire image which is suspended or sunk. In many applications, it is desirable to have a stereoscopic imaging effect for imaging with optical imaging films.
[ summary of the invention ]
In view of this, the present application provides an imaging optical film and a decoration film, so as to solve the problems that the imaging effect of the optical imaging film in the prior art is single and stereoscopic imaging cannot be realized.
The present application provides an imaging optical film comprising:
the micro image-text layer is provided with three-dimensional micro image-text, and the thickness of the three-dimensional micro image-text is greater than or equal to 5 mu m along the thickness direction of the imaging optical film;
an imaging layer having an imaging unit;
the three-dimensional micro-image-text is positioned in the focal depth range of the imaging unit and is arranged corresponding to the imaging unit, so that the imaging layer can form an image on the micro-image-text layer, and the image is of a three-dimensional structure.
In one possible design, the imaging optical film further includes a spacer layer; the imaging layer and the micro image-text layer are respectively arranged on two sides of the spacing layer.
In one possible design, the microimage-text layer has a recessed structure; the hollow structure forms the three-dimensional micro-graph and text, and the hollow structure is filled with colored filler.
In one possible design, the micro-image-text layer has a raised structure, and the raised structure forms the three-dimensional micro-image-text.
In one possible design, the three-dimensional micro-pattern is arranged on the micro-pattern layer by means of stamping or etching.
In one possible design, a film coating layer is arranged on the three-dimensional micro-graph and text.
In one possible design, the imaging unit is one or more of a combination of cylindrical micro-lens and spherical micro-lens.
In one possible embodiment, the imaging layer imprint is arranged on the side of the spacer layer facing away from the microimage-text layer.
In one possible design, the imaging layer is made by UV glue curing.
In addition, the application also provides a decorative film, which comprises the imaging optical film and a base layer;
imaging optical film pass through the adhesive linkage set up in the basic unit, just imaging layer deviates from one side of wall sets gradually reflector layer, dyed layer.
By combining the technical scheme, the beneficial effects of the method are analyzed as follows:
the imaging optical film comprises a micro image-text layer and an imaging layer, wherein the micro image-text layer is provided with three-dimensional micro image-text, and the thickness of the three-dimensional micro image-text is greater than or equal to 5 mu m along the thickness direction of the imaging optical film; the imaging layer is provided with an imaging unit, and the three-dimensional micro-image-text is positioned in the focal depth range of the imaging unit and is arranged corresponding to the three-dimensional micro-image-text, so that the imaging layer forms an image of a three-dimensional structure on the micro-image-text layer.
Compared with the optical imaging film in the technology, the imaging optical film provided by the embodiment of the application has the advantages that the three-dimensional micro-image can be presented, the imaging effect is more prominent, and the imaging effect is more visual.
In addition, this application still provides a decorative film, and this decorative film includes foretell formation of image blooming and basic unit, and formation of image blooming passes through the adhesive linkage and sets up in the basic unit, and deviates from reflecting layer, dyed layer in proper order in the formation of image layer one side of wall.
The decorative film can realize all the beneficial effects of the imaging optical film, and the description is omitted.
Additional features and advantages of embodiments of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of embodiments of the present application. The objectives and other advantages of the embodiments of the application will be realized and attained by the structure particularly pointed out in the written description and drawings.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of an imaging optical film provided in a first embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a structure of an imaging optical film provided in a second embodiment of the present application;
FIG. 3 is a schematic representation of the geometry of the imaging optical film of FIG. 1.
Fig. 4 is a schematic structural diagram of a decoration film provided in an embodiment of the present application.
Reference numerals:
1-micro graph and text layer;
11-stereo micro-graph and text;
111-center level;
2-an imaging layer;
21-an imaging unit;
211-focal point;
3-a spacer layer;
4-an adhesive layer;
5-a base layer;
6-a reflective layer;
7-a coloured layer;
h-thickness direction.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
Specific examples of the structures of the imaging optical films provided in the embodiments of the present application will be described below.
FIG. 1 is a schematic diagram of the structure of an imaging optical film provided in a first embodiment of the present disclosure; FIG. 2 is a schematic representation of the geometry of the imaging optical film of FIG. 1; FIG. 3 is a schematic diagram of a structure of an imaging optical film provided in a second embodiment of the present application; fig. 4 is a schematic structural diagram of a decoration film provided in an embodiment of the present application.
As shown in fig. 1 to 3, the present application provides an imaging optical film, which includes a micro-image-text layer 1 and an imaging layer 2, wherein the micro-image-text layer 1 has a three-dimensional micro-image-text 11, and the thickness of the three-dimensional micro-image-text 11 is greater than or equal to 5 μm along a thickness direction H of the imaging optical film; the imaging layer 2 has an imaging unit 21, and the stereoscopic micro-image 11 is located in a focal depth range of the imaging unit 21 and is disposed corresponding to the imaging unit 21, so that the imaging layer 2 can form an image on the micro-image 1, and the image is in a stereoscopic structure.
Because the imaging optical film is provided with the three-dimensional micro-image-text 11 with the thickness of more than or equal to 5 mu m, the imaging layer 2 can present the three-dimensional micro-image-text 11 with an image with a three-dimensional effect.
The three-dimensional micro-image 11 can be set into various structural shapes, such as common geometric structures like prisms, regular polygons and irregular solids, and the shape of the three-dimensional micro-image 11 can also be the shape of some common articles, such as pyramids, head models, tea cups and the like.
It is worth noting that the stereoscopic micrograph 11 is located within the focal depth of the imaging unit 21.
The depth of focus is short for the depth of focus, that is, when the focus is directed at an object, not only can each point on the plane of the point be clearly seen, but also within a certain thickness above and below the plane, the thickness of the clear portion is the depth of focus.
Since the micro-pattern array of the optical imaging film commonly used in the prior art is a planar pattern, the optical imaging film is generally disposed at the focal plane of the micro-lens array, and the imaging optical film provided by the present application has the three-dimensional micro-image 11, and the three-dimensional micro-image 11 has a certain thickness, in order to enable the imaging layer 2 to better image each layer of the three-dimensional micro-image 11, the three-dimensional micro-image 11 is disposed within the focal depth range of the imaging unit 21. Specifically, it may be preferable to arrange that the central layer plane 111 of the stereographic microimage 11 is located at the focal plane of the imaging layer 2 in the thickness direction H of the imaging optical film.
As explained with reference to fig. 3, the dashed line perpendicular to the thickness direction H in fig. 3 represents the central layer 111 of the stereoscopic micro-image 11, and the intersection point of two dashed lines in the micro-lens is the focal point 211 of the imaging unit 21, where the central layer 111 of the stereoscopic micro-image 11 is located at the focal plane of the imaging layer 2, and is not mathematically absolute, for example, due to an error caused by a manufacturing process, the central layer 111 of the stereoscopic micro-image 11 is located near the focal plane of the imaging layer 2, and should also be understood as belonging to the protection scope of the present application.
In an alternative of this embodiment, the imaging optical film further includes a spacer layer 3, and the imaging layer 2 and the micro-image-text layer 1 are respectively disposed on two sides of the spacer layer 3.
The spacing layer 3 is arranged to facilitate the arrangement of the imaging layer 2 and the micro image-text layer 1, the spacing layer 3 can be made of but not limited to a PET material, the imaging layer 2 and the micro image-text layer 1 are respectively arranged on two sides of the spacing layer 3, and the thickness of the spacing layer 3 can be adaptively adjusted and arranged according to the focal length of the imaging layer 2, so that when the imaging layer 2 and the micro image-text layer 1 are respectively arranged on two sides of the spacing layer 3, the central layer 111 of the three-dimensional micro image-text 11 is just located at the focus 211 of the imaging layer 2.
Certainly, the spacing layer 3 may not be provided, and the imaging layer 2 and the micro image-text layer 1 may be fixedly provided at an interval, so that the imaging layer 2 can perform normal moire imaging on the micro image-text layer 1.
In an alternative of this embodiment, a film coating layer is disposed on the three-dimensional micro-image 11.
Specifically, the coating film layer can set up in one side that the wall 3 was kept away from to three-dimensional little picture and text 11, and is specific, and the coating film layer can set to the reflectance coating, and the reflectance coating can increase light, and then makes the more clear of the moire image that three-dimensional little picture and text 11 demonstrates, and the imaging effect is better.
In an alternative of this embodiment, the imaging unit 21 is one or a combination of cylindrical microlenses and spherical microlenses.
When the cylindrical surface micro lens performs moire imaging on the micro image-text layer 1, a moire imaging effect can be generated only in the radial direction of the cylindrical surface micro lens, and the moire imaging effect cannot be generated in the axial direction of the cylindrical surface micro lens, but the cylindrical surface micro lens has a simple structure, and the process operations of mold manufacturing design and compression molding of the spacing layer 3 are simple and convenient.
Although the spherical microlens structure is more complex than the cylindrical microlens, the spherical microlens can perform moire imaging on the microimage-text layer 1 in all directions, and the effect of displaying the generated moire image is better.
In an alternative of this embodiment the imaging layer 2 is embossed on the side of the spacer layer 3 facing away from the layer 1.
The imaging layer 2 may be formed and then stamped on the spacer layer 3, or may be formed and stamped directly on the spacer layer 3.
Specifically, the imaging layer 2 may be formed by pressing and curing a curing adhesive, the curing adhesive is directly coated on the spacer layer 3, then the mold is pressed against the spacer layer 3 and cured, and finally the mold is removed, so that the imaging layer 2 imprinted on the spacer layer 3 is directly obtained. It is, of course, also possible to first prepare the imaging layer 2 by means of a mold and to imprint it on the spacer layer 3 by means of an adhesive.
In an alternative to this embodiment, the imaging layer 2 is made by UV glue curing.
The UV glue, also known as photosensitive glue or UV-curable glue, is an adhesive that can be cured only by irradiation of ultraviolet light, and when the imaging layer 2 is manufactured, the UV glue can be directly printed on the spacer layer 3, and the formed imaging unit 21 can be obtained by mold press forming and UV-curable curing. The manufacturing process is simple and the manufacturing cost is low.
In addition, the embodiment of the application also provides a decorative film, which comprises the imaging optical film and a base layer 5; the imaging optical film is arranged on the base layer 5 through the bonding layer 4, and the reflecting layer 6 and the coloring layer 7 are sequentially arranged on one side of the imaging layer 2, which is far away from the spacing layer 3.
The base layer 5 may be made of, but not limited to, transparent materials such as glass and sapphire, and in this case, the imaging optical film in the decorative film is of a reflective structure, so that a human eye can observe a stereoscopic image presented by the imaging optical film on one side of the base layer 5. The decorative film can be used as a glass back plate of electronic products such as mobile phones and flat plates, can show a stereoscopic brand logo image through the imaging optical film, and can also be used in the fields of instrument instruments, artwork decorative photo frames, automobile glass and the like for displaying brands or other information.
The reflecting layer 6 can be plated on the imaging layer 2 by specifically adopting an evaporation process, the coloring layer 7 can be formed by coating ink on the reflecting layer 6, and the coloring layer 7 can prevent light leakage.
First embodiment
The embodiment provides a specific arrangement mode of the micro-image-text layer 1, as shown in fig. 2, the micro-image-text layer 1 has a concave structure; the hollow structure forms a three-dimensional micro-graph 11, and the hollow structure is filled with colored filler.
The space ratio of the concave structure in the micro graph-text layer 1 is adjusted to enable the concave structure to form the three-dimensional micro graph-text 11, at the moment, the three-dimensional micro graph-text 11 is a 'concave part' arranged in the micro graph-text layer 1, and the concave structure is filled with the colored filler, so that the imaging effect of the concave structure as the three-dimensional micro graph-text 11 can be further improved.
In an alternative of this embodiment, the three-dimensional micro-pattern 11 is disposed on the micro-pattern layer 1 by etching or stamping.
When the concave structure in the micro image-text layer 1 is manufactured by stamping, in order to ensure that the depth of the concave structure is not less than 5 mu m, the depth of the concave structure can be set according to the height specification of the convex part of the convex die, so that the thickness depth of the concave structure formed by filling the filler is not less than 5 mu m.
When the recess structure in the microimage-text layer 1 is etched, a chemical etching process can be adopted, for example: firstly, brushing an etching layer in the microimage-text layer 1, then arranging a corrosion-resistant film on the part outside the concave structure, and finally etching by using etching liquid, thus etching the part uncovered by the corrosion-resistant film to form the concave structure.
Of course, some other etching process may be used to fabricate the three-dimensional micro-pattern 11, for example, laser etching.
Second embodiment
In the embodiment, another specific arrangement mode of the micro-image-text layer 1 is provided, and the micro-image-text layer 1 has a convex structure, and the convex structure forms the three-dimensional micro-image-text 11.
The space ratio of the raised structure in the micro graph-text layer 1 is adjusted to enable the raised structure to form the three-dimensional micro graph-text 11, and at the moment, the three-dimensional micro graph-text 11 is a 'raised part' arranged in the micro graph-text layer 1.
In an alternative of this embodiment, the three-dimensional micro-pattern 11 is disposed on the micro-pattern layer 1 by etching or stamping.
When the convex structure in the micro image-text layer 1 is manufactured by stamping, in order to ensure that the height of the convex structure is not less than 5 mu m, the height of the convex structure can be set according to the depth specification of the concave part of the concave die so as to ensure that the height and the depth of the convex structure are not less than 5 mu m.
When the raised structure in the micro-image-text layer 1 is etched, a chemical etching process can be adopted, for example: firstly, brushing an etching layer in the micro-image-text layer 1, then arranging a corrosion-resistant film on the part corresponding to the convex structure, and finally etching by using etching liquid, so that the part which is not covered by the corrosion-resistant film can be etched, and the part which is covered by the corrosion-resistant film forms the convex structure. Of course, some other etching process may be used to fabricate the three-dimensional micro-pattern 11, for example, laser etching.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. An imaging optical film, comprising:
the micro image-text layer is provided with three-dimensional micro image-text, and the thickness of the three-dimensional micro image-text is greater than or equal to 5 mu m along the thickness direction (H) of the imaging optical film;
an imaging layer having an imaging unit;
the three-dimensional micro-image-text is positioned in the focal depth range of the imaging unit and is arranged corresponding to the imaging unit, so that the imaging layer can form an image on the micro-image-text layer, and the image is of a three-dimensional structure.
2. The imaging optical film of claim 1, further comprising a spacer layer;
the imaging layer and the micro image-text layer are respectively arranged on two sides of the spacing layer.
3. The imaging optical film of claim 2, wherein the microimage layer has a recessed structure;
the hollow structure forms the three-dimensional micro-graph and text, and the hollow structure is filled with colored filler.
4. The imaging optical film of claim 2, wherein the microimage layer has a raised structure, and the raised structure forms the stereoscopic microimage.
5. The imaging optical film according to claim 3 or 4, wherein the three-dimensional microimage is disposed on the microimage layer by stamping or etching.
6. The imaging optical film of claim 3 or 4, wherein a coating is disposed on the stereoscopic microimages.
7. The imaging optical film according to claim 1, wherein the imaging unit is one or more of a combination of cylindrical microlens and spherical microlens.
8. The imaging optical film of claim 2, wherein the imaging layer is disposed on a side of the spacer layer facing away from the microimage-text layer.
9. The imaging optical film of claim 8, wherein the imaging layer is made by UV glue curing.
10. A decorative film comprising the imaging optical film according to any one of claims 1 to 9 and a base layer;
imaging optical film pass through the adhesive linkage set up in the basic unit, just imaging layer deviates from one side of wall sets gradually reflector layer, dyed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792502.5A CN112505939A (en) | 2019-08-26 | 2019-08-26 | Imaging optical film and decorative film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792502.5A CN112505939A (en) | 2019-08-26 | 2019-08-26 | Imaging optical film and decorative film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112505939A true CN112505939A (en) | 2021-03-16 |
Family
ID=74923740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910792502.5A Pending CN112505939A (en) | 2019-08-26 | 2019-08-26 | Imaging optical film and decorative film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112505939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089452A (en) * | 2021-11-16 | 2022-02-25 | 宁波舜宇奥来技术有限公司 | Microlens element |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059654A (en) * | 2007-04-19 | 2007-10-24 | 上海复旦天臣新技术有限公司 | Photolithagraphic diffractive image false-proof film and its preparation method |
| CN104200253A (en) * | 2014-09-05 | 2014-12-10 | 苏州苏大维格光电科技股份有限公司 | Dynamic optical enlargement effect based anti-counterfeiting intelligent card and manufacturing method thereof |
| WO2016029692A1 (en) * | 2014-08-27 | 2016-03-03 | 苏州大学 | Coloured dynamic stereoscopic moire image thin film based on micro printing and preparation method therefor |
| CN106324726A (en) * | 2015-07-08 | 2017-01-11 | 昇印光电（昆山）股份有限公司 | Three-dimensional imaging optical thin film |
| CN108254937A (en) * | 2017-12-19 | 2018-07-06 | 浙江理工大学 | A kind of double imaging methods, device and its application |
| CN109445003A (en) * | 2018-12-18 | 2019-03-08 | 苏州大学 | A kind of color solid More imaging optical device |
| US20190118571A1 (en) * | 2016-04-13 | 2019-04-25 | Ccl Secure Pty Ltd | Micro-optic device with double sided optical effect |
| CN109979310A (en) * | 2019-05-17 | 2019-07-05 | 四川芯辰光微纳科技有限公司 | A kind of picture and text protection structure and preparation method thereof based on dynamic anti-fake film |
-
2019
- 2019-08-26 CN CN201910792502.5A patent/CN112505939A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059654A (en) * | 2007-04-19 | 2007-10-24 | 上海复旦天臣新技术有限公司 | Photolithagraphic diffractive image false-proof film and its preparation method |
| WO2016029692A1 (en) * | 2014-08-27 | 2016-03-03 | 苏州大学 | Coloured dynamic stereoscopic moire image thin film based on micro printing and preparation method therefor |
| CN104200253A (en) * | 2014-09-05 | 2014-12-10 | 苏州苏大维格光电科技股份有限公司 | Dynamic optical enlargement effect based anti-counterfeiting intelligent card and manufacturing method thereof |
| CN106324726A (en) * | 2015-07-08 | 2017-01-11 | 昇印光电（昆山）股份有限公司 | Three-dimensional imaging optical thin film |
| US20190118571A1 (en) * | 2016-04-13 | 2019-04-25 | Ccl Secure Pty Ltd | Micro-optic device with double sided optical effect |
| CN108254937A (en) * | 2017-12-19 | 2018-07-06 | 浙江理工大学 | A kind of double imaging methods, device and its application |
| CN109445003A (en) * | 2018-12-18 | 2019-03-08 | 苏州大学 | A kind of color solid More imaging optical device |
| CN109979310A (en) * | 2019-05-17 | 2019-07-05 | 四川芯辰光微纳科技有限公司 | A kind of picture and text protection structure and preparation method thereof based on dynamic anti-fake film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089452A (en) * | 2021-11-16 | 2022-02-25 | 宁波舜宇奥来技术有限公司 | Microlens element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8503083B2 (en) | Lens sheet for microlens and lenticular lens | |
| US7394596B1 (en) | Plane lens sheet using light transmission rate difference | |
| US7821717B2 (en) | Lenticular lens array element | |
| TWI274675B (en) | Print medium with lenticular effect | |
| CN103029468B (en) | Manufacturing method for forming convex three-dimensional grating image-text on surface of printing product and product made by method | |
| CN210465874U (en) | Imaging optical film and decorative film | |
| CN112505939A (en) | Imaging optical film and decorative film | |
| KR101644830B1 (en) | Security image film manufacturing method with micron unit of thickness based on micro-lenz | |
| CN116852892A (en) | Optical anti-counterfeiting element and preparation method thereof | |
| CN1271106A (en) | Combined micro lens and micro figure film | |
| CN210401718U (en) | Optical imaging film | |
| CN213457427U (en) | Optical imaging film | |
| WO2021036427A1 (en) | Optical imaging film | |
| KR101131642B1 (en) | Stereoscopic Image Film and Method of Preparing the Same | |
| KR101666819B1 (en) | Security image film manufacturing method with micron unit of thickness based on lanticular lenz | |
| KR101164229B1 (en) | Method for manufacturing of sheet having moire pattern shapes | |
| CN210129885U (en) | Optical imaging decorative film and electronic product cover plate | |
| KR102316772B1 (en) | Mold for forming stereoscopic image and Molded product with stereoscopic image | |
| CN210401720U (en) | Optical imaging film | |
| CN220626788U (en) | Transmission-reflection integrated microlens magnifying imaging film and anti-counterfeiting product | |
| CN112433273B (en) | Optical imaging film | |
| CN112433271B (en) | Optical imaging film | |
| KR20110077037A (en) | Security 3d sheet by water | |
| CN210401719U (en) | Optical imaging film | |
| CN218524967U (en) | Stereo imaging optical film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |