CN213601004U

CN213601004U - Imaging film

Info

Publication number: CN213601004U
Application number: CN202022614268.8U
Authority: CN
Inventors: 郑伟伟; 申溯; 刘立冬
Original assignee: Shine Optoelectronics Kunshan Co Ltd
Current assignee: Shine Optoelectronics Kunshan Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-07-02
Anticipated expiration: 2030-11-12

Abstract

The utility model provides an imaging film, it is including the focus layer and the picture and text layer of range upon range of setting. The focusing layer comprises a focusing unit, and the focusing unit comprises a plurality of microstructures which are distributed; the image-text layer comprises a plurality of image-text units, each image-text unit comprises a plurality of micro-images and texts which are distributed, and the micro-images and texts of each image-text unit are respectively arranged corresponding to the micro-structures of the focusing unit; each image-text unit is matched with the focusing unit to form an amplified image, the images have the same pattern, and the image height of each image is arranged in a gradient manner, so that the imaging film presents a three-dimensional image with a certain thickness, the visual effect is good, and the anti-counterfeiting film has a good anti-counterfeiting effect when being 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 method utilizes the focusing effect of the micro-lens array to amplify the micro-pattern with high efficiency, and realizes an image with certain depth of field and peculiar dynamic effect. The basic structure of a typical imaging film is to arrange a periodic microlens array on the upper surface of a transparent substrate, and to arrange a corresponding periodic micro-pattern array on the lower surface of the transparent substrate, where the micro-pattern array is located at or near the focal plane of the microlens array, and the micro-pattern array is arranged substantially the same as the microlens array, so as to achieve the moire magnification effect on the micro-pattern array by the microlens array.

However, the image displayed by the general imaging film is mostly suspended or sunken and has a thickness of '0'. The image has a certain height and is called a stereoscopic image, but the stereoscopic image is a pseudo stereoscopic image and can be understood as a floating thin image. Although the floating thin image has novel effect, the floating plane image has poor visual effect from the visual angle, and the anti-counterfeiting effect is influenced when the floating thin image is applied to the anti-counterfeiting field.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an imaging film that solves the above-mentioned problems.

The technical scheme of the utility model as follows:

an imaging film, comprising:

a focusing layer comprising a focusing unit comprising a plurality of microstructures arranged in a distributed manner;

the image-text layer comprises a plurality of image-text units, each image-text unit comprises a plurality of micro-images and texts which are distributed, and the micro-images and texts of each image-text unit are respectively arranged corresponding to the micro-structures of the focusing unit;

and each image-text unit is respectively matched with the focusing unit to form an enlarged image, a plurality of images have the same pattern, and the image heights of the images are arranged in a gradient manner.

In one embodiment, at least a part or all of the microimages of the teletext unit are arranged as part of the pattern displayed by the image formed by the focusing unit.

In one embodiment, the microstructures in the focusing unit are randomly distributed, and the microimages in the image-text unit are randomly distributed; or the plurality of micro-structure arrays in the focusing unit are arranged, and the plurality of micro-image-text arrays in the image-text unit are arranged.

In one embodiment, the teletext layer comprises 3-10 teletext elements.

In one embodiment, at least two of the teletext elements are arranged in a stack, and/or at least two of the teletext elements are arranged in an ablation arrangement in a stack.

In one embodiment, the image-text layer is provided with a groove, the groove is filled with a colored material to form the micro image-text, and the two micro image-texts are stacked and then share the groove at the intersection to be arranged in an ablation manner.

In one embodiment, the distance between two adjacent microstructures is set to be Tr, the distances between two adjacent microimages of the corresponding image-text units are set to be T1 and T2.. Tn respectively, and the image heights of the formed images are set to be H1 and H2.. Hn respectively; tr > T1, T2.. Tn, each of the images being a suspended image, and T1 > T2. > Tn, then H1 < H2. < Hn.

In one embodiment, the distance between two adjacent microstructures is set to be Tr, the distances between two adjacent microimages of the corresponding image-text units are respectively set to be T1 and T2.. Tn, and the image heights of the correspondingly formed images are respectively set to be H1 and H2.. Hn; tr < T1, T2.. Tn, each of the images being a sink image, and T1 < T2. < Tn, then H1 < H2. < Hn.

In one embodiment, the magnification of each image is respectively set to M1 and M2.. Mn, so that M1 < M2 < > Mn; the width of the microstructure of each graphic unit is W1 and W2.. Wn, so that W1 > W2.. is larger than Wn, or W1 ═ W2 · Wn, or W1 < W2. < Wn.

In one embodiment, the image is gradually smaller or larger in the gradient direction, and/or the image is gradually displaced to one side.

The utility model has the advantages that: each image-text unit is respectively matched with the focusing unit to form an amplified image, a plurality of images have the same pattern, and the image height of each image is arranged in a gradient manner, so that the imaging film presents a three-dimensional image with a certain thickness, the visual effect is good, and the anti-counterfeiting film has a good anti-counterfeiting effect when being 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 plane view of the distribution of a plurality of micro-images and texts of three image and text units of the imaging film of the present invention;

FIG. 3 is a schematic view of an image of an imaging film of the present invention;

FIG. 4 is a schematic view of a micro-pattern stack ablation arrangement of the imaging film of the present invention;

FIG. 5 is a schematic plane view of a plurality of micro-images and texts of an image and text unit of the imaging film of the present invention;

fig. 6 is another schematic view of an image of an 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 is including the focus layer and the picture and text layer of range upon range of setting. The focusing layer comprises a focusing unit, and the focusing unit comprises a plurality of microstructures which are distributed; the image-text layer comprises a plurality of image-text units, each image-text unit comprises a plurality of micro-images and texts which are distributed, and the micro-images and texts of each image-text unit are respectively arranged corresponding to the micro-structures of the focusing unit; each image-text unit is matched with the focusing unit to form an amplified image, the images have the same pattern, and the image height of each image is arranged in a gradient manner, so that the imaging film presents a three-dimensional image with a certain thickness, the visual effect is good, and the anti-counterfeiting film has a good anti-counterfeiting effect when being applied to the anti-counterfeiting field.

At least part or all of the micrographs in the plurality of micrographs of the graph-text unit are set as part of the pattern displayed by the image formed by the graph-text unit through the focusing unit. That is, the microimages are incomplete and only show a part of the pattern, but according to the moire imaging principle, the microimages are matched with the microstructures, and an image with a complete pattern can still be formed. When the micro-image and text are only set into partial patterns, partial patterns with larger proportion can be set in the same area relative to the whole patterns, so that images with larger proportion can be formed, the limitation of imaging size is broken through, meanwhile, no miscellaneous points are arranged around the formed images, and the images are clearer. A plurality of microstructures in the focusing unit are randomly distributed, and a plurality of microimages in the image-text unit are randomly distributed; or a plurality of micro-structure arrays in the focusing unit are arranged, and a plurality of micro-image arrays in the image-text unit are arranged. By setting micro-pictures and texts, the picture and text unit can form a unique image; the unique images formed by the image-text units are arranged in a gradient manner in the image height direction, so that the imaging film presents a stereoscopic image with a certain thickness.

In other embodiments, when the plurality of microimages are all set as complete patterns, the plurality of microstructures of the focusing unit are randomly set, and the plurality of microimages of the image-text unit are randomly set; each teletext element forms a unique floating or sinking image. The random arrangement ensures the uniqueness of the image, and the unique image formed by the image-text units is arranged in a gradient manner in the image height direction, so that the imaging film presents a stereoscopic image with a certain thickness.

Preferably, the teletext layer comprises 3-10 teletext elements. Wherein, at least two picture and text units are arranged in a stacked mode, and/or at least two picture and text units are arranged in a stacked ablation mode. When the layers are arranged in a stacked mode, each image-text unit is one layer, for example, a laser printing mode is adopted, a second layer is directly printed on the completed image-text unit after one layer is printed, or a spacing layer (for example, a UV glue layer) is arranged on the printed image-text unit, and then the other layer of image-text unit is printed on the spacing layer; for example, an imprinting filling mode is adopted, a patterned groove is formed after one UV adhesive layer is imprinted and cured, a coloring material is filled in the groove to form a pattern unit, then another UV adhesive layer is coated to form another layer of pattern unit, and other pattern units are sequentially formed. In the ablation setting, taking two image-text units as an example, the two image-text units are arranged as one layer, and the two patterns are arranged in common at the overlapped part, for example, when laser printing is performed, the lines of the patterns of the two image-text units are on one layer, and the overlapped part is printed only once; such as by imprint filling, the overlapping portions are located in the same trench. In another embodiment, the image-text layer includes both a laminated arrangement and an ablation arrangement. The stacking mode is set according to the number of the image-text units and the complexity of the pattern, and clear images can be obtained.

In the arrangement mode, no matter random distribution or array arrangement is adopted, the distance between two adjacent microstructures is set to be Tr, the distance between two adjacent microimages of a plurality of corresponding image-text units is set to be T1 and T2.

H＝k*M*d；

Wherein k is a coefficient related to the material of the focusing layer and the image-text layer, and d is the distance between the microstructure and the micro-image-text.

Then when Tr > T1, T2.. Tn, each image is a suspended image, and T1 > T2. > Tn, then H1 < H2. < Hn; the resulting image is arranged in a gradient so that the overall image presented by the imaged film has a thickness and thus a strong stereoscopic impression. Further, M1 < M2. < Mn, and the width of the microstructure of each picture and text unit is set to W1, W2.. Wn, respectively, then W1 > W2.. is greater than Wn, or W1 ═ W2 ═ Wn, or W1 < W2 <. < Wn; the image can be gradually reduced or enlarged in the gradient direction, or the image is gradually arranged in a staggered manner towards one side, or both the size change and the staggered arrangement are included, so that different stereoscopic effects are formed.

When Tr is less than T1 and T2.. Tn, each image is a sinking image, and T1 is less than T2 < Tn, then H1 is less than H2 < Hn; the resulting image is arranged in a gradient so that the overall image presented by the imaged film has a thickness and thus a strong stereoscopic impression. Further, M1 < M2. < Mn, and the width of the microstructure of each picture and text unit is set to W1, W2.. Wn, respectively, then W1 > W2.. is greater than Wn, or W1 ═ W2 ═ Wn, or W1 < W2 <. < Wn; the image can be gradually reduced or enlarged in the gradient direction, or the image is gradually arranged in a staggered manner towards one side, or both the size change and the staggered arrangement are included, so that different stereoscopic effects are formed.

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

Referring to fig. 1 to 3, the present invention discloses an imaging film 100, which includes a focusing layer 1, a graphic layer 2 and a base layer 3. The base layer 3 comprises a first side surface 31 and a second side surface 32 which are oppositely arranged, the focusing layer 1 is arranged on the first side surface 31 of the base layer 3, and the image-text layer 2 is arranged on the second side surface 32 of the base layer 3. The focusing layer 1 comprises a focusing unit comprising a plurality of microstructures 11 arranged in a distributed manner; in this embodiment, the microstructure 11 is a segment-shaped microlens; by coating the first side 31 of the base layer 3 with the UV glue, the plurality of microstructures 11 arranged in an array are formed after the imprinting and curing. The image-text layer 2 comprises three image-

text units

21, 22 and 23, the image-text unit 21 comprises a plurality of micro-images 211 which are distributed, the image-text unit 22 comprises a plurality of micro-images 221 which are distributed, and the image-text unit 23 comprises a plurality of micro-images 231 which are distributed. The

micrographs

211, 221, 231 of each

teletext unit

21, 22, 23 are arranged corresponding to the microstructure 11 of the focusing unit, respectively, wherein each

teletext unit

21, 22, 23 is adapted to the focusing unit to form an enlarged image 41, 43 (see fig. 4), the three

images

41, 42, 43 have the same pattern "E", and the image height of each

image

41, 42, 43 is arranged with a gradient. In the image height direction (taking the floating image as an example, as the Y direction in fig. 1), the image heights of the three

images

41, 42, 43 (H1, H2, H3 respectively) are sequentially increased, so that the imaging film 100 presents a stereoscopic image with a certain thickness, and has a good visual effect. In the image height direction, the sizes of the three

images

41, 42, 43 are sequentially changed, so that the presented stereoscopic image has a deep feeling, and the stereoscopic impression is further enhanced. In another embodiment, referring to fig. 6, the six

images

51, 42, 43, 54, 55, 56 are arranged in a gradient manner in the image height direction, the image height difference between any two adjacent images is equal, and the six

images

51, 52, 53, 54, 55, 56 are arranged in a gradually staggered manner toward one side in the image height direction, so as to further enhance the stereoscopic effect.

The three graphic and

text units

21, 22 and 23 are formed by coating UV glue on the second side 32 by means of laminated ablation, forming a groove after stamping and curing, and filling a colored material (such as ink and the like) in the groove to form the micro-graphics 211, 221 and 231 of each graphic and text unit. Three

microimages

211, 221 and 231 of three image-text units respectively corresponding to the same microstructure 11 of the focusing unit are arranged in a stacked manner, and the cross and overlapped parts are arranged in an ablation manner, namely the cross and overlapped parts are positioned in the same groove; therefore, please refer to fig. 4 for the groove after the ablation of the three

microimages

211, 221, 231.

Referring to fig. 5, taking one of the teletext cells 21 as an example, the teletext cell 21 comprises a plurality of micrographs 211, all of the micrographs 211 being arranged as part of the pattern displayed by the image formed by the teletext cell 21 by the focusing unit. For example, the image-text unit 21 forms an image through the focusing unit, the displayed pattern of the image is "E" (see fig. 3), and the micro-image-text 211 is "E" if the micro-image-text 211 is set as a complete pattern, while in the present embodiment, the micro-image-text 211 is set as a partial pattern of "E", each micro-image-text 211 is displayed as an incomplete "E", and the image-text unit 21 and the focusing unit are matched to form an image with the complete pattern "E" according to the moire imaging principle, so that the definition and the uniqueness of the image are ensured.

In terms of arrangement, referring to fig. 1 and 2, the multiple microimages 21 in the image-

text units

21, 22, 23 are arranged according to the regular arrangement of the array. The distance between adjacent microstructures 11 is Tr, the distance between adjacent micrographs 211 of the corresponding picture-text unit 21 is T1, the distance between adjacent micrographs 221 of the corresponding picture-text unit 22 is T2, and the distance between adjacent micrographs 231 of the corresponding picture-text unit 23 is T3.

Images

41, 42 and 43 formed by matching the image-

text units

21, 22 and 23 with the focusing unit respectively set the image height of the image 41 as H1 and the magnification as M1; the image height of the image 42 is H2, and the magnification is M2; the image height of the image 43 is H3, and the magnification is M3. Then the relationship of each parameter is:

H＝k*M*d；

When Tr is more than T1, T2 and T3, each

image

41, 42 and 43 is a suspension image, and T1 is more than T2 is more than T3, H1 is more than H2 is more than H3; the

images

41, 42, 43 formed are arranged in a gradient so that the overall image of the presentation of the imaged film has a thickness and thus a strong stereoscopic impression. Further, when M1 < M2 < M3 and the widths of the

microstructures

211, 221, and 231 of the

text units

21, 22, and 23 are W1, W2, and W3, respectively, W1 ═ W2 ═ W3; it can be formed in the gradient direction with the image becoming larger, thereby enhancing the stereoscopic effect.

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:

2. The imaging film of claim 1, wherein at least some or all of the microimages of the teletext elements are arranged as part of the pattern displayed by the image formed by the focusing element.

3. The imaging film of claim 2, wherein a plurality of the microstructures in the focusing unit are randomly distributed, and a plurality of the microimages in the image-text unit are randomly distributed; or the plurality of micro-structure arrays in the focusing unit are arranged, and the plurality of micro-image-text arrays in the image-text unit are arranged.

4. An imaging film as claimed in claim 1, 2 or 3 wherein said graphics layer comprises 3-10 graphics elements.

5. An imaging film according to claim 1, 2 or 3 wherein at least two of said graphic elements are arranged in a stack and/or at least two of said graphic elements are arranged in an ablation stack.

6. The imaging film as claimed in claim 5, wherein the image-text layer is provided with a groove, the groove is filled with a colored material to form the micro-image-text, and the two micro-image-text layers are stacked and then arranged by ablation in a manner of sharing the groove at the intersection.

7. The imaging film according to claim 1, wherein a distance between two adjacent microstructures is set to Tr, distances between two adjacent microimages of corresponding ones of the image-text units are set to T1 and T2.. Tn, respectively, and image heights of the respective images are set to H1 and H2.. Hn; tr > T1, T2.. Tn, each of the images being a suspended image, and T1 > T2. > Tn, then H1 < H2. < Hn.

8. The imaging film according to claim 1, wherein a distance between two adjacent microstructures is set to Tr, distances between two adjacent microimages of corresponding ones of the image-text units are set to T1, T2.. Tn, respectively, and image heights of the respective images formed are set to H1, H2.. Hn, respectively; tr < T1, T2.. Tn, each of the images being a sink image, and T1 < T2. < Tn, then H1 < H2. < Hn.

9. An imaging film according to claim 7 or 8, wherein the respective magnifications of the respective images are set to M1, M2.. Mn, respectively, such that M1 < M2. < Mn; the width of the microstructure of each graphic unit is W1 and W2.. Wn, so that W1 > W2.. is larger than Wn, or W1 ═ W2 · Wn, or W1 < W2. < Wn.

10. An imaging film according to claim 1 wherein the image is progressively smaller or larger in the direction of the gradient and/or the image is progressively offset to one side.