CN213814137U - Lens stack type dynamic film - Google Patents
Lens stack type dynamic film Download PDFInfo
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- CN213814137U CN213814137U CN202023019953.2U CN202023019953U CN213814137U CN 213814137 U CN213814137 U CN 213814137U CN 202023019953 U CN202023019953 U CN 202023019953U CN 213814137 U CN213814137 U CN 213814137U
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Abstract
The utility model relates to a lens superposed dynamic membrane, which comprises an image-text layer, a substrate layer, a first lens layer, a first packaging layer and a second lens layer from bottom to top; one side of the substrate layer is provided with an image-text layer, and the other side of the substrate layer is provided with a first lens layer; the second lens layer is arranged on the outer side of the first lens layer; the spherical lens cross-sectional dimension of the second lens layer is larger than that of the first lens layer; the first packaging layer is arranged between the first lens layer and the second lens layer. The lens superposed dynamic film of the utility model is a conventional single-layer dynamic lens film consisting of a picture and text layer, a substrate layer and a first lens layer; and applying a first packaging layer on the outer surface of the first lens layer for packaging, then applying a second lens layer, and carrying out secondary amplification on the image-text identification which is amplified once by the first lens layer by the second lens layer, so that the image-text identification with a larger amplification ratio can be obtained.
Description
Technical Field
The utility model relates to an adopt the lens stack, obtain the bigger dynamic membrane of visual effect magnification ratio.
Background
The micro-lens dynamic film is a product which can observe amplified dynamic pictures and texts by naked eyes; the conventional microlens dynamic film can be used as an anti-counterfeiting and marking product; the conventional structure of the microlens dynamic film can be referred to the prior application of the applicant, wherein the Chinese patent publication number is CN105835559A optical imaging anti-counterfeiting element, and the Chinese patent publication number is CN205836304U optical imaging anti-counterfeiting element and anti-counterfeiting packaging sheet; the user can observe the magnified, three-dimensional and dynamic graphic and text mark information through the micro-lens array.
But is limited by the difference of refractive indexes among the used materials, under the condition of reasonable overall film thickness, the amplification ratio of the current image-text mark is limited, and only the image-text mark with the size of a coin can be obtained visually; how to obtain the image-text mark with larger magnification needs to further improve the structure of the dynamic film.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lens stack type dynamic membrane to obtain the picture and text sign of bigger magnification ratio.
In order to achieve the above object, the present invention provides a lens stacked dynamic film, which is characterized in that the film is composed of an image-text layer, a substrate layer, a first lens layer, a first packaging layer and a second lens layer from bottom to top;
one side of the substrate layer is provided with an image-text layer, and the other side of the substrate layer is provided with a first lens layer;
the second lens layer is arranged on the outer side of the first lens layer;
the spherical lens cross-sectional dimension of the second lens layer is larger than that of the first lens layer;
the first packaging layer is arranged between the first lens layer and the second lens layer.
As a further improvement of the present invention, the first encapsulating layer is a solid resin closed structure.
As a further improvement of the present invention, the first encapsulation layer is an air encapsulation structure;
a glue coating layer is arranged on the back surface of the second lens layer;
the glue coating layer is attached to the top of the spherical crown of the first lens layer micro-lens structure; and the rest of the first lens layer micro-lens structure does not form an air layer with the joint part of the glue coating layer.
As a further improvement of the present invention, the complete containment of the microlens structure boundary of the second lens layer is a plurality of the microlens structure boundary of the first lens layer.
Furthermore, the micro-lens structures of the first lens layer and the micro-lens structures of the second lens layer are arranged in a rectangular array.
Furthermore, the micro-lens structures of the first lens layer are arranged in a triangular array, and the micro-lens structures of the second lens layer are correspondingly arranged in a hexagonal array.
Furthermore, the micro-lens structures of the first lens layer are arranged in a hexagonal array, and the micro-lens structures of the second lens layer are correspondingly arranged in an approximately hexagonal array.
As a further improvement of the present invention, a low refractive index UV resin is applied to the outside of the second lens layer to form a second encapsulation layer.
As a further improvement of the utility model, the air-tight structure is applyed in the outside on second lens layer, forms the lens of air-tight type and superposes type dynamic membrane.
The lens superposed dynamic film of the utility model is a conventional single-layer dynamic lens film consisting of a picture and text layer, a substrate layer and a first lens layer; and applying a first packaging layer on the outer surface of the first lens layer for packaging, then applying a second lens layer, and carrying out secondary amplification on the image-text identification which is amplified once by the first lens layer by the second lens layer, so that the image-text identification with a larger amplification ratio can be obtained.
The utility model discloses lens overlay type dynamic membrane adopts double-deck lens to superpose, and the ball lens cross sectional dimension through the two-layer lens of reasonable control makes second lens layer is complete, evenly covers a plurality of first lens layer to realize the enlargeing of equal rule, obtain the bigger picture and text sign of visual dimension.
Drawings
Fig. 1 is a schematic view of a usage state of a lens stack type dynamic film according to the present invention;
fig. 2 is an enlarged schematic view of a first embodiment of the lens stack type dynamic membrane of the present invention;
fig. 3 is an enlarged schematic view of a second embodiment of the lens stacked dynamic film of the present invention;
fig. 4 is a schematic view of a stacked double-layer lens structure of the lens stacked dynamic film of the present invention 1;
fig. 5 is a schematic view of a stacked double-layer lens structure of the lens stacked dynamic film of the present invention, which is shown in fig. 2;
fig. 6 is a schematic view showing the superposition of the double-layer lens structure of the lens superposed dynamic film of the present invention 3;
reference numerals: the image-text packaging structure comprises an image-text layer 11, a base material layer 12, a first lens layer 13, a first packaging layer 14 and a second lens layer 15;
a glue layer 16; an air layer 17.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
When the lens stacked dynamic film of the present invention is used, as shown in fig. 1, the observer can see the large graphic sign enlarged for 2 times in the front of the lens stacked dynamic film 1.
Example one
The utility model discloses lens stack type dynamic membrane, embodiment one, concrete cross-section magnification structure is shown in fig. 2, follows supreme picture and text layer 11, substrate layer 12, first lens layer 13, first encapsulated layer 14, second lens layer 15 of being respectively down.
The image-text layer 11, the base material layer 12 and the first lens layer 13 form a conventional direct display type dynamic lens film; and applying a first packaging layer 14 on the surface of the first packaging layer for packaging, then applying a second lens layer 15, and performing secondary amplification on the image-text mark which is amplified once by the first lens layer 13 by using the second lens layer 15, so that the image-text mark with a larger amplification ratio can be obtained.
The preparation steps of the lens superposed dynamic membrane of the utility model are roughly as follows:
step 1: coating a micro graphic array structure on one surface (front surface or back surface) of a transparent base material layer 12 such as PET (polyethylene terephthalate) and filling colors to form a graphic layer 11;
step 2: coating a micro-lens array structure on the non-image-text layer 11 side of the base material layer 12 by using a UV (ultraviolet) forming process to form a first lens layer 13;
and step 3: encapsulating the surface of the first lens layer 13 to form a first encapsulation layer 14;
and 4, step 4: continuously coating the micro-lens array structure on the surface of the first packaging layer 14 by using a UV forming process to form a second lens layer 15;
namely, the lens stack type dynamic film of the first embodiment is formed.
The specific requirements of the materials of each layer are as follows:
1. picture and text layer 11, the material: UV resin, thickness: 3-20 microns;
2. base material layer 12, material: optical grade PET film, thickness: 12-300 microns;
3. first lens layer 13, material: UV resin, thickness: 5-200 microns;
4. first encapsulation layer 14, material: low refractive index UV resin, thickness: 2-100 microns (higher than the thickness of the top surface of the sphere of the first lens layer 13);
5. second lens layer 15, material: UV resin, thickness: 5-200 microns.
In the lens stacked dynamic film of the first embodiment, no other package structure is disposed outside the second lens layer 15, so that the film can be regarded as a direct display type lens stacked dynamic film.
Of course, a low refractive index UV resin may be applied to the outside of the second lens layer 15 to form a second sealing layer, that is, a sealing type lens stack type dynamic film.
Further, the method can be realized in an air packaging film; the conventional air layer packaging film product can be referred to the preparation method of the air packaging anti-counterfeiting lens film with the Chinese patent publication number of CN 111830610A; the utility model discloses in, it is right air packaging structure is applyed in the outside of second lens layer 15, forms the lens of air packaging type and superposes type dynamic membrane promptly.
Example two
The difference from the first embodiment is that the first encapsulating layer 14 is modified, specifically, as shown in fig. 3, an air encapsulating structure is applied to the outer side of the first lens layer 13; the method specifically comprises the following steps of adjusting the steps 3 and 4:
step 31: manufacturing a back adhesive type micro-lens film; selecting a proper micro-lens array film as the second lens layer 15; coating high-viscosity glue with the thickness of 1-10 microns on the flat back surface of the substrate to form a glue coating layer 16;
the glue coating layer 16 can adopt a wet coating process or a solvent coating process;
finally, after being heated by an oven, the glue is cured, namely a glue coating layer 16 is formed on the back surface of the second lens layer 15, and then a back glue type micro-lens film is formed;
step 41: compounding; compounding the single-layer lens dynamic film containing the image-text layer 11, the base material layer 12 and the first lens layer 13 formed in the step 2 with the back adhesive type micro-lens film formed in the step 31; wherein the glue layer 16 is attached to the first lens layer 13; controlling the thickness of the glue coating layer to ensure that the glue coating layer 16 can only be attached to the top of the spherical cap of the micro-lens structure of the first lens layer 13, and sealing the air layer inside the rest parts of the micro-lens structure which are not attached to the glue to form an air layer 17;
curing the glue of the glue coating layer 16; namely, the lens stack type dynamic film of the second embodiment is formed.
The specific requirements of the glue layer 16 are as follows:
glue coating 16, material: high-viscosity glue such as acrylic glue or rubber, and dry film thickness: 2-20 microns; the transparency is more than 80 percent;
the glue layer 16 serves to bond the second lens layer 15 to the top of the spherical cap of the first lens layer 13;
the glue coating layer 16 is adhered to the top of the spherical cap of the first lens layer 13, and the overlapping thickness in the vertical direction is more than 1 micron;
the adhesive layer 16 has a high viscosity and a peeling force of more than 100gf on both sides.
After the air encapsulation structure of the embodiment is adopted, the material and the overall thickness of the first encapsulation layer 14 can be saved.
In the present invention, the cross-sectional dimension of the first lens layer 13 and the cross-sectional dimension of the second lens layer 15 have strict size ratio limitations; the structure of the spherical lens is required to be kept, and the surface of the film can be comprehensively covered; if only one layer of micro-lens structure is provided, various array layout structures can be adopted; however, considering the superposition of the two-layer lens structures, the lens edge structures of a plurality of the first lens layers 13 are to be completely covered by the edge structure of a single second lens layer 15 and to be arranged in a continuous and array manner on the whole plane, reference may be made to a plurality of layout forms as shown in fig. 4-6, wherein the dotted line is the boundary of the first lens layer 13, the solid line is the boundary of the second lens layer 15, and the circle in the middle of the boundary line is the schematic sphere lens position of the lens; fig. 4 shows that the lens boundaries of the first lens layer 13 and the lens boundaries of the second lens layer 15 are arranged in a rectangular array; fig. 5 shows that the lens boundaries of the first lens layer 13 are arranged in a triangular array, and the lens boundaries of the second lens layer 15 are correspondingly arranged in a hexagonal array; fig. 6 shows that the lens boundaries of the first lens layer 13 are arranged in a hexagonal array, and the lens boundaries of the second lens layer 15 are correspondingly arranged in an irregular approximately hexagonal array; thus, a lens superposition structure with globally uniform proportion can be obtained, and the optimal occupied area ratio is ensured.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The lens superposed dynamic film is characterized in that an image-text layer, a substrate layer, a first lens layer, a first packaging layer and a second lens layer are respectively arranged from bottom to top;
one side of the substrate layer is provided with an image-text layer, and the other side of the substrate layer is provided with a first lens layer;
the second lens layer is arranged on the outer side of the first lens layer;
the spherical lens cross-sectional dimension of the second lens layer is larger than that of the first lens layer;
the first packaging layer is arranged between the first lens layer and the second lens layer.
2. The lens stack dynamic film of claim 1, wherein the first encapsulation layer is a solid resin closed structure.
3. The lens stack dynamic film of claim 1, wherein the first encapsulation layer is an air-encapsulated structure;
a glue coating layer is arranged on the back surface of the second lens layer;
the glue coating layer is attached to the top of the spherical crown of the first lens layer micro-lens structure; and the rest of the first lens layer micro-lens structure does not form an air layer with the joint part of the glue coating layer.
4. The lens stack dynamic film of claim 1, wherein the boundaries of the lenticular structures of the second lens layer completely encompass the boundaries of the lenticular structures of the first lens layer.
5. The lens stack dynamic film of claim 4, wherein the microlens structures of the first lens layer and the microlens structures of the second lens layer are arranged in a rectangular array.
6. The lens stack dynamic film of claim 4, wherein the first lens layer microlens structures are arranged in a triangular array and the second lens layer microlens structures are correspondingly arranged in a hexagonal array.
7. The lens stack dynamic film of claim 4, wherein the microlens structures of the first lens layer are arranged in a hexagonal array and the microlens structures of the second lens layer are correspondingly arranged in an approximately hexagonal array.
8. The lens stack dynamic film of claim 1, wherein a second encapsulation layer is formed by applying a low refractive index UV resin on an outer side of the second lens layer.
9. The lens stack dynamic film of claim 1, wherein an air-packing structure is applied to an outer side of the second lens layer to form an air-packing type lens stack dynamic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023019953.2U CN213814137U (en) | 2020-12-15 | 2020-12-15 | Lens stack type dynamic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023019953.2U CN213814137U (en) | 2020-12-15 | 2020-12-15 | Lens stack type dynamic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213814137U true CN213814137U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023019953.2U Active CN213814137U (en) | 2020-12-15 | 2020-12-15 | Lens stack type dynamic film |
Country Status (1)
| Country | Link |
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| CN (1) | CN213814137U (en) |
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- 2020-12-15 CN CN202023019953.2U patent/CN213814137U/en active Active
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