CN218675540U

CN218675540U - Imaging film

Info

Publication number: CN218675540U
Application number: CN202222380578.7U
Authority: CN
Inventors: 周菲; 洪莘
Original assignee: Shine Optoelectronics Kunshan Co Ltd
Current assignee: Shine Optoelectronics Kunshan Co Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-03-21
Anticipated expiration: 2032-09-07

Abstract

The utility model provides an imaging film, it includes substrate layer, focus layer and picture and text layer group. The focusing layer comprises a plurality of microstructures which are distributed and arranged and is provided with a focal plane; the image-text layer group comprises two image-text layers which are arranged in a stacked mode, each image-text layer comprises a bearing body provided with a plurality of grooves and a plurality of micro images and texts formed by filling colored materials in the grooves, and the colored materials filled in the two image-text layers are different in color; the micro-pictures and texts of each picture and text layer are distributed and are respectively matched with the microstructures of the focusing layer to form an amplified image; the two image-text layers have different distances from the defocusing plane and have different colors, so that a virtual-real combined image is formed, and the anti-counterfeiting effect is good when the anti-counterfeiting image is applied to the anti-counterfeiting field.

Description

Imaging film

Technical Field

The utility model relates to an optical film technical field especially relates to an imaging film.

Background

Moir techniques used with imaging films are an attractive new class of visual security techniques. The micro-lens array is used for efficiently amplifying the micro-pattern by utilizing the focusing effect of the micro-lens array, and the image with certain depth of field and peculiar dynamic effect is realized. However, the graphics of conventional imaged films are typically formed by printing or nanoimprinting processes using inks. The pattern in which digital printing occurs can have a variety of colors, but some patterns with fine features cannot be made due to the lower resolution. The traditional nano printing process can receive and print micro-patterns with micro-nano sizes by virtue of high resolution, so that the manufactured imaging film can obtain patterns with exquisite details, but the patterns only have a single color because the patterns are integrally received and printed on the whole surface. Therefore, the image formed by the conventional imaging film is poor in visual effect, and the anti-counterfeiting effect is influenced when the image is applied to the anti-counterfeiting field.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing, there is a need for an imaging film that solves at least one of the problems set forth above.

The technical scheme of the utility model as follows:

an imaged film, comprising:

the substrate layer comprises a first surface and a second surface which are oppositely arranged;

the focusing layer is arranged on the first surface, comprises a plurality of microstructures which are distributed and arranged and is provided with a focal plane;

the image-text layer group is arranged on the second surface and comprises two image-text layers which are arranged in a stacked mode, each image-text layer comprises a bearing body provided with a plurality of grooves and a plurality of micro images and texts formed by filling colored materials in the grooves, and the colored materials filled in the two image-text layers are different in color;

the micro-pictures and texts of each picture and text layer are distributed and matched with the micro-structures of the focusing layer respectively to form an amplified image; one of the image-text layers is positioned in the range of +/-2 μm of the focal plane, and the other image-text layer is positioned in the range of 2 μm to 7 μm or-7 μm to-2 μm of the focal plane and does not comprise +/-2 μm.

In one embodiment, the teletext layer set comprises a first teletext layer and a second teletext layer, the first teletext layer being closer to the focal plane than the second teletext layer.

In one embodiment, the image height of the image formed by the first image-text layer is smaller than the image height of the image formed by the second image-text layer.

In one embodiment, the first image-text layer comprises a plurality of first micro-images and texts which are arranged periodically, the second image-text layer comprises a plurality of second micro-images and texts which are arranged periodically, and the period of the first micro-images and texts is different from that of the second micro-images and texts.

In one embodiment, the first graphic layer includes a plurality of randomly arranged first micro-graphics, and the second graphic layer includes a plurality of randomly arranged second micro-graphics.

In one embodiment, the microstructures are respectively arranged in one-to-one correspondence with the first and second microimages.

In one embodiment, in the corresponding relationship of the same microstructure, the first and second microimages are overlapped.

In one embodiment, in the same corresponding relationship of the microstructures, the first and second microimages are arranged at intervals.

In one embodiment, the image-text layer group comprises three image-text layers which are stacked, and the colors of colored materials filled in the three image-text layers are different.

In one embodiment, one of the image-text layers is located in the range of +/-2 μm of the focal plane, one of the image-text layers is located in the range of 3 μm to 7 μm away from the focal plane, and the other one of the image-text layers is located in the range of-7 μm to-3 μm away from the focal plane.

The utility model has the advantages that: the two image-text layers have different distances from the defocusing plane and have different colors, so that a virtual-real combined double-color image is formed, and the anti-counterfeiting effect is good when the anti-counterfeiting image is applied to the anti-counterfeiting field.

Drawings

FIG. 1 is a schematic cross-sectional view of an imaging film of the present invention;

FIG. 2 is a schematic plan view of the imaging film of the present invention;

FIG. 3 is a schematic diagram of the imaging principle of the imaging film of the present invention;

fig. 4 is a schematic cross-sectional view of another embodiment of the imaging film of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model discloses an imaging film, it includes substrate layer, focus layer and picture and text layer group. The substrate layer comprises a first surface and a second surface which are oppositely arranged. The focusing layer is arranged on the first surface, comprises a plurality of microstructures which are distributed and arranged, and is provided with a focal plane, the focal plane is a plane on which a plurality of focuses of the microstructures are distributed, and the focal plane is a non-solid plane and is used for representing the positions of the focuses. The picture and text layer group sets up in the second surface, and the picture and text layer group is including two-layer picture and text layer that range upon range of setting, and every layer of picture and text layer is including the supporting body that is provided with a plurality of recesses and filling a plurality of little pictures and texts that colored material formed in a plurality of recesses, and the colour of the colored material of two-layer picture and text layer packing is different. The micro-pictures and texts of each picture and text layer are distributed and are respectively matched with the micro-structures of the focusing layer to form an amplified image; one of the layers is located within + -2 μm of the focal plane and the other layer is located within 2 μm to 7 μm or-7 μm to-2 μm of the focal plane and does not include + -2 μm. Thus, the two image-text layers are positioned at or near the focal plane to form images, and images with different colors can be formed due to different colors and respective imaging. The image formed by the image-text layer positioned in the range of +/-2 mu m of the focal plane is clearer, and the image formed by the image-text layer positioned in the range of 2 mu m to 7 mu m or-7 mu m to-2 mu m of the focal plane and not comprising +/-2 mu m is relatively fuzzy, so that the effect of coexistence of virtual and real is realized, images with different colors are obtained, and the anti-counterfeiting liquid has a better visual effect and a better anti-counterfeiting effect when being applied to the anti-counterfeiting field.

The substrate layer is generally arranged in a transparent mode and comprises materials such as glass, organic glass, PET, PC, PMMA, PI and PU, and UV glue or thermosetting glue can also be used. The method for making the imaging film is described by taking PET as an example: coating UV glue on one side of PET for imprinting to form a focusing layer, coating a UV glue embossing groove on the other side of the PET, filling a color material in the groove to form an image-text layer, coating UV glue on one side of the image-text layer far away from the PET again for imprinting the groove, and filling a color material with another color in the groove to form another image-text layer.

In one embodiment the set of graphics layers comprises a first graphics layer and a second graphics layer, wherein the first graphics layer is closer to the focal plane than the second graphics layer. The sharpness of the image formed by the first image-text layer is thus greater than the sharpness of the image formed by the second image-text layer. Furthermore, the image height of the image formed by the first image-text layer is smaller than that of the image formed by the second image-text layer, and the image height comprises the suspended height or the sinking depth, so that the definition of the image formed by the first image-text layer is further larger than that of the image formed by the second image-text layer, and the virtual and real effects of the image of the imaging film are more obvious.

In one embodiment, the first image-text layer comprises a plurality of first micro-image-texts which are arranged periodically, the second image-text layer comprises a plurality of second micro-image-texts which are arranged periodically, and the period of the first micro-image-text is different from that of the second micro-image-text. The magnification ratio of the formed image can be different, the image height of the image can be different, or both the magnification ratio and the image height can be different, so that the virtual and real of the formed image are more obvious.

In one embodiment, the first graphic layer comprises a plurality of randomly arranged first micrographics and the second graphic layer comprises a plurality of randomly arranged second micrographics. Images with different image heights and magnifications can be formed, and unique images can be formed respectively to meet the preset effect.

The microstructures are respectively arranged corresponding to the first micro-image-text and the second micro-image-text one by one. In one embodiment, in the corresponding relationship of the same microstructure, the first and second microimages can be overlapped, and the overlapping amount is changed. In another embodiment, in the corresponding relationship of the same microstructure, the first and second microimages can be arranged at intervals to ensure respective imaging effects.

In one embodiment, the image-text layer group comprises three image-text layers which are arranged in a stacked mode, and the colors of colored materials filled in the three image-text layers are different. Preferably, one of the image-text layers is positioned in the range of +/-2 μm of the focal plane, the other image-text layer is positioned in the range of 3 μm to 7 μm of the defocused plane, and the other image-text layer is positioned in the range of-7 μm to-3 μm of the defocused plane, so that a virtual-real combined multicolor image effect is formed, and the anti-counterfeiting effect is further excellent.

An imaging film is described by way of example with reference to the figures.

Referring to fig. 1 to 3, the present invention discloses an imaging film 100, which includes a substrate layer 1, a focusing layer 2 and a graph-text layer group 3. The substrate layer 1 includes a first surface 11 and a second surface 12 disposed opposite to each other. The focusing layer 2 is disposed on the first surface 11, and the focusing layer 2 includes a plurality of microstructures 21 disposed in a distributed manner and has a focal plane S. The graph-text layer group 3 is arranged on the second surface, and the graph-text layer group 3 comprises a first graph-text layer 31 and a second graph-text layer 32 which are arranged in a stacked mode. The first image-text layer 31 includes a first carrier 312 provided with a plurality of first grooves 312 and a plurality of first micro-images 313 formed by filling a colored material in the plurality of first grooves 312, in this embodiment, the pattern of the first micro-images 313 is "a". The second image-text layer 32 includes a second carrier 321 provided with a plurality of second grooves 322 and a plurality of second micro-images 323 formed by filling a colored material in the plurality of second grooves 322, in this embodiment, the pattern of the second micro-images 323 is "B". The first image-text layer 31 and the second image-text layer 32 are filled with different colors of colored materials, for example, the first image-text layer 31 is red, the second image-text layer 32 is green, and the like. The first micro-patterns 313 of the first pattern layer 31 are matched with the microstructures 21 to form an enlarged image, and the second micro-patterns 323 of the second pattern layer 32 are matched with the microstructures 21 to form an enlarged image. Wherein, the first image-text layer 31 is positioned at the focal plane S +1 μm, namely, at the position 1 μm above the focal plane; the second image-text layer 32 is located at the focal plane S-5 μm, i.e. 5 μm below the defocus plane S. Therefore, the image formed by the first micro-image-text 313 of the first image-text layer 31 is clearer than the image formed by the second micro-image-text 323 of the second image-text layer 32, so that a virtual and real coexisting two-color effect is realized, a better visual effect is obtained, and when the anti-counterfeiting liquid is applied to the anti-counterfeiting field, the anti-counterfeiting effect is better.

With reference to fig. 1 to 3, the microstructures 21 are periodically arranged, the first micro-patterns 313 are periodically arranged, the second micro-patterns 323 are periodically arranged, the period of the first micro-patterns 313 is different from the period of the second micro-patterns 323, the image height h1 of the image "a" formed by the first pattern layer 31 is smaller than the image height h2 of the image "B" formed by the second pattern layer 32, and the magnification of the image "a" is smaller than the magnification of the image "B". Thereby further enhancing the effect of deficiency and excess.

In one embodiment, the substrate layer 1 is a PET layer, a first plane on one side of the PET layer is coated with UV glue and is embossed and cured to form a plurality of microstructures 21, a second plane on the other side of the PET layer is coated with UV glue and is embossed and cured to be filled with a colored material to form a first image-text layer 31, and the first image-text layer 31 is coated with UV glue again and is filled with a colored material of another color to form a second image-text layer 32. The formed imaging film 100 has micro-nano-sized micro-images and texts, patterns with delicate details are obtained, the resolution is high, the two colors are provided, and the formed images are combined in a virtual mode and a real mode, so that the imaging film has a good visual effect and an anti-counterfeiting effect.

Referring to fig. 4, the present invention discloses another imaging film 101, which is different from the imaging film 100 in that the image-text layer group 3 of the imaging film 101 further includes a third image-text layer 33. Similarly, the third graphic layer 33 includes a third carrier 331 having a plurality of third grooves 332 and a plurality of third micro-graphics 333 formed by filling a colored material into the plurality of third grooves 332. The third image-text layer 33 is located at the focal plane S +5 μm, i.e. 5 μm above the focal plane S; and the color of the third micro-image-text 333 is different from that of the first micro-image-text 313 and the second micro-image-text 323, so that three images with different heights, colors and resolutions are formed, and the three images are combined in a virtual and real mode, so that the visual effect is good and the anti-counterfeiting effect is good.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the invention. Moreover, the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An imaging film, comprising:

the focusing layer is arranged on the first surface and comprises a plurality of distributed microstructures and a focal plane;

the micro-pictures and texts of each picture and text layer are distributed and matched with the micro-structures of the focusing layer respectively to form an amplified image; one of the layers is located within + -2 μm of the focal plane, and the other layer is located within 2 μm to 7 μm or-7 μm to-2 μm of the focal plane and does not include + -2 μm.

2. The imaging film of claim 1, wherein the set of layers comprises a first layer and a second layer, the first layer being closer to the focal plane than the second layer.

3. The imaging film of claim 2 wherein the image height of the image formed by the first image-text layer is less than the image height of the image formed by the second image-text layer.

4. The imaging film of claim 3, wherein the first image-text layer comprises a plurality of first micro-images arranged periodically, the second image-text layer comprises a plurality of second micro-images arranged periodically, and the period of the first micro-images is different from the period of the second micro-images.

5. The imaging film of claim 3, wherein the first graphic layer comprises a plurality of randomly arranged first micrographs and the second graphic layer comprises a plurality of randomly arranged second micrographs.

6. The imaging film of claim 4 or 5, wherein the microstructures are disposed in one-to-one correspondence with the first and second microimages, respectively.

7. The imaging film of claim 6, wherein the first and second microimages are superimposed in the same microstructure relationship.

8. The imaging film of claim 6, wherein the first and second microimages are spaced apart in the same microstructure correspondence.

9. The imaging film as claimed in claim 1, wherein the image-text layer group comprises three image-text layers which are stacked, and the colors of the colored materials filled in the three image-text layers are different.

10. An imaging film as claimed in claim 9, wherein one of said layers lies in the range of 3 μm to 7 μm from said focal plane and the other of said layers lies in the range of-7 μm to-3 μm from said focal plane.