CN115576179A - Holographic image structure with layered superposition effect and manufacturing method thereof - Google Patents
Holographic image structure with layered superposition effect and manufacturing method thereof Download PDFInfo
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/024—Hologram nature or properties
- G03H1/0244—Surface relief holograms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H1/0011—Adaptation of holography to specific applications for security or authentication
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0252—Laminate comprising a hologram layer
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Abstract
The invention relates to the technical field of holographic images, and provides a holographic image structure with a hierarchical superposition effect and a manufacturing method thereof, wherein the structure comprises the following components: the holographic image display device comprises a first holographic image structure used for displaying an upper holographic image and a second holographic image structure used for displaying a lower holographic image; and a substrate for fixing the first and second holographic image structures. The invention can simultaneously display two layers of holographic images under the same light source and the same visual angle, furthermore, the two layers of holographic images can be matched according to the needs, can be simultaneously plane holographic images, can also be simultaneously three-dimensional holographic images, and can also be the combination of the plane holographic images and the three-dimensional holographic images, the whole has visual level superposition effect visible to naked eyes, the visual effect and the safety anti-counterfeiting performance of the product can be obviously improved, the batch production can be realized, and the production efficiency is high.
Description
Technical Field
The invention relates to the technical field of holographic images, in particular to a holographic image structure with a hierarchical superposition effect and a manufacturing method thereof.
Background
The holographic image can be applied to objects with relatively high anti-counterfeiting requirements such as bank notes, certificates, bank cards and the like to play a visual and safe anti-counterfeiting role, the holographic image technology has penetrated into a plurality of fields along with the updating and popularization of the technology, the holographic image technology is comprehensively applied to the consumer product packaging industry in recent years, and the appearance effect and the safe anti-counterfeiting performance of the product can be well improved by combining the holographic image with the design.
The holographic image display process on the traditional article is displayed one by one (layer by layer), through moving a light source, and/or turning over the article, and/or changing the visual angle of human eyes, the refraction angle of incident light is changed, the holographic image on the article can be displayed one by one (layer by layer), and the holographic image displayed one by one (layer by layer) generally belongs to a plane effect on the visual effect visible by naked eyes, and has no layering sense, and along with the continuous promotion of market demands and understanding on the technology, the holographic image manufacturing technology is rapidly diffused, the effect that the traditional holographic image technology can realize is single, the holographic image display process is very easy to be simulated and copied, and the original anti-counterfeiting performance is lost.
In view of the above, overcoming the drawbacks of the prior art is an urgent problem in the art.
Disclosure of Invention
The invention provides a solution to the technical problem that the traditional holographic image technology can realize single visual effect and is easy to imitate and copy, thereby reducing the anti-counterfeiting performance.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a holographic image structure with a hierarchical overlay effect, comprising:
a first holographic image structure for displaying an upper holographic image; the first holographic image structure is provided with convex parts and concave parts which are arranged at intervals;
a second holographic image structure for displaying an underlying holographic image; the second holographic image structure is arranged in the concave part of the first holographic image structure; and the number of the first and second groups,
a substrate for holding the first and second holographic image structures;
the upper-layer holographic image is superposed on the lower-layer holographic image, and the upper-layer holographic image and the lower-layer holographic image can be displayed simultaneously.
Preferably, the height of the first holographic image structure is greater than the height of the second holographic image structure.
Preferably, the upper layer holographic image is a plane holographic image or a three-dimensional holographic image.
Preferably, the lower layer holographic image is a planar holographic image or a stereoscopic holographic image.
Preferably, the width of the convex portion of the first hologram image structure is 0.1 to 20 μm.
Preferably, the width of the recesses of the first holographic image structure is 5-20 μm and the depth of the recesses of the first holographic image structure is 1-10 μm.
Preferably, the bottom of the base material is provided with a back adhesive.
In a second aspect, the present invention provides a method for manufacturing a holographic image structure with a hierarchical superposition effect, for manufacturing the holographic image structure with a hierarchical superposition effect described in the first aspect, the method includes:
analyzing the preset upper-layer holographic image and the preset lower-layer holographic image through computer software to obtain an analysis file for processing the first holographic image structure and the second holographic image structure;
transmitting the analysis file to processing equipment, and processing and manufacturing the first holographic image structure and the second holographic image structure through the processing equipment;
the first holographic image structure is used for displaying an upper holographic image, the second holographic image structure is used for displaying a lower holographic image, the upper holographic image is superposed on the lower holographic image, and the upper holographic image and the lower holographic image can be displayed simultaneously.
Preferably, the first holographic image structure and the second holographic image structure are processed and manufactured by processing equipment, and the method includes:
processing the first holographic image structure into convex parts and concave parts which are arranged at intervals, so that the upper layer holographic image visually has a continuous and complete optical structure;
and processing the second holographic image structure in the concave part of the first holographic image structure, so that the lower layer holographic information image is displayed through the concave part of the first holographic image structure.
Preferably, the processing and manufacturing the first holographic image structure and the second holographic image structure by using a processing device specifically includes:
before mass production, the first holographic image structure and the second holographic image structure are processed and manufactured by high-precision photoetching equipment or high-precision mechanical equipment; and in the mass production process, the first holographic image structure and the second holographic image structure are processed and manufactured by rolling equipment.
Aiming at the defects in the prior art, the invention has the following beneficial effects:
the holographic image structure with the hierarchical superposition effect can simultaneously display two layers of holographic images under the same light source and the same visual angle, has the visual hierarchical superposition effect visible to naked eyes, and can remarkably improve the visual effect and the safety anti-counterfeiting performance of a product.
Furthermore, the two layers of holographic images are simultaneously displayed on the object, the layering superposition effect can be matched according to needs, and the two layers of holographic images can be simultaneously plane holographic images, also can be simultaneously three-dimensional holographic images, and also can be the combination of the plane holographic images and the three-dimensional holographic images.
The method for manufacturing the holographic image structure with the hierarchical superposition effect only needs to copy the surface structure once in the aspect of production and application, does not need to perform complex processes such as accurate alignment and the like after multiple times of copying and processing, and is suitable for the requirement of mass production.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram of an imaging process of a holographic image structure with a hierarchical superposition effect according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a visual effect of a holographic image structure with a hierarchical superposition effect according to embodiment 1 of the present invention;
fig. 3 is a schematic top view of a holographic image structure with a layered superposition effect according to embodiment 1 of the present invention;
FIG. 4 is a schematic cross-sectional view of a holographic image structure with a layered superposition effect according to embodiment 1 of the present invention;
FIG. 5 is a schematic diagram of the visual effect of another holographic image structure with a layered superposition effect provided in embodiment 1 of the present invention;
FIG. 6 is a schematic top view of another holographic image structure with a layered superposition effect provided in embodiment 1 of the present invention;
FIG. 7 is a schematic cross-sectional view of another holographic image structure with a layered superposition effect provided in embodiment 1 of the present invention;
FIG. 8 is a schematic diagram of a visual effect of a holographic image structure with a layered superposition effect according to embodiment 1 of the present invention;
FIG. 9 is a schematic top view of a holographic image structure with a layered superposition effect according to embodiment 3 of the present invention;
FIG. 10 is a schematic cross-sectional view of another holographic image structure with a layered superposition effect provided in embodiment 1 of the present invention;
FIG. 11 is a schematic view of a visual effect of a holographic image structure with a layered superposition effect according to embodiment 1 of the present invention;
FIG. 12 is a schematic top view of a holographic image structure with a layered superposition effect according to embodiment 1 of the present invention;
FIG. 13 is a schematic cross-sectional view of a holographic image structure with a layered superposition effect provided in embodiment 4 of the present invention;
fig. 14 is a schematic flow chart of a method for manufacturing a holographic image structure with a hierarchical superposition effect according to embodiment 2 of the present invention;
fig. 15 is a schematic flow chart of a method for manufacturing a holographic image structure with a hierarchical superposition effect according to embodiment 2 of the present invention.
In the drawings, like reference numerals are used to designate like parts or structures, wherein:
10-upper holographic image; 20-first holographic image structure, 21-protrusions, 22-recessions; 30-lower layer holographic image; 40-a second holographic image structure; 50-a substrate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention. In addition, technical features of various embodiments or individual embodiments provided by the present invention may be arbitrarily combined with each other to form a feasible technical solution, and such combination is not limited by the sequence of steps and/or the structural composition mode, but must be realized by a person skilled in the art, and when the technical solution combination is contradictory or cannot be realized, such a technical solution combination should not be considered to exist and is not within the protection scope of the present invention.
Example 1:
the holographic image is formed by diffraction and reflection of light caused by the concave-convex microstructure on the surface of the material, the microstructure can realize local difference in the aspects of shape, size, height and the like, and when human eyes watch the holographic image in a certain visual angle direction, different images can be seen to generate different visual effects, as shown in figure 1, the holographic image is an imaging process schematic diagram of the holographic image structure with the hierarchical superposition effect provided by embodiment 1 of the invention, after incident light L0 irradiates the surface of the material, different reflected light such as light L1 and light L2 are generated under the influence of the concave-convex microstructure on the surface of the material, and thus different visual effects are formed.
In order to solve the technical problems that the traditional holographic image technology can realize single visual effect and is easy to imitate and copy, so that the anti-counterfeiting performance is reduced, the invention provides a holographic image structure with a hierarchical superposition effect, as shown in fig. 2 to 13, which comprises the following steps: a first holographic image structure 20 for displaying the upper holographic image 10, a second holographic image structure 40 for displaying the lower holographic image 30; and a substrate 50 for fixing the first holographic image structure 20 and the second holographic image structure 40, wherein in a specific implementation, the first holographic image structure 20 has convex portions 21 and concave portions 22 arranged at intervals, the second holographic image structure 40 is arranged in the concave portions of the first holographic image structure 20, the convex portions 21 and the concave portions 22 of the first holographic image structure 20 may be a combination of irregular concave-convex structures, including asymmetric concave-convex structures, or symmetric structures, or concave-convex structures with varying periods, in order to better present a stereoscopic effect, the limit of human eye recognition capability is 20 μm, under a high contrast image and under better illumination, the width of the concave portions 22 of the first holographic image structure is no longer than the limit, so that a grating gap of image information is not sensed, when the width of the concave portions 22 of the first holographic image structure is less than 5 μm, the optical effect of the lower-layer image information cannot be guaranteed, and preferably, the width of the concave portions 22 of the first holographic image structure is 5-20 μm, and at the same time, the depth of the concave portions 22 of the first holographic image structure is 1-1.1-20 μm, and the depth of the convex portions 21-1.0-1 μm of the first holographic image structure is not longer than the width of the lower-20 μm; wherein the upper holographic image 10 is superimposed on the lower holographic image 30, and the upper holographic image 10 and the lower holographic image 30 can be displayed simultaneously; in the present embodiment, the upper layer holographic image 10 and the lower layer holographic image 30 are relative to the visual effect of human eyes, specifically, the upper layer holographic image 10 is located on the upper layer, and the lower layer holographic image 30 is located on the lower layer; the first holographic image structure 20 is used as a carrier of the upper layer holographic image 10, the shape, size, height and density of the first holographic image structure 20 determine that the pattern to be presented by the upper layer holographic image 10 is different, the second holographic image structure 40 is used as a carrier of the lower layer holographic image 30, and the shape, size, height and density of the second holographic image structure 40 determine that the pattern to be presented by the lower layer holographic image 30 is different; in order to facilitate the processing and manufacturing of the first holographic image structure 20 and the second holographic image structure 40, preferably, the materials of the first holographic image structure 20 and the second holographic image structure 40 are consistent, and before the pre-processing and manufacturing, the top surface mainly composed of the first holographic image structure 20 and the second holographic image structure 40 and the bottom surface mainly composed of the substrate 50 jointly form a whole with a flat upper surface and a flat lower surface.
In this embodiment, the substrate 50 mainly serves to provide fixing and supporting for the first holographic image structure 20 and the second holographic image structure 40, and in some alternative implementations, in order to achieve that the upper layer holographic image 10 and the lower layer holographic image 30 can be simultaneously viewed at certain viewing angles at a certain height below the substrate 50, the substrate 50 may also be made of a transparent material; in addition, in some application scenarios, the bottom of the base material 50 is provided with a back adhesive, so as to fix the holographic image structure with the hierarchical superposition effect, for example, when the holographic image structure with the hierarchical superposition effect needs to be fixed on glass, plastic or a wall surface, the back adhesive can be used by brushing the adhesive, or by peeling the film.
In order to achieve the layering of the upper holographic image 10 and the lower holographic image 30 in the human eye vision, and obtain a visual effect with a layering sense, the height of the first holographic image structure 20 and the height of the second holographic image structure 40 need to maintain a certain height difference, as an implementation manner, the height of the first holographic image structure 20 is greater than the height of the second holographic image structure 40, the height of the first holographic image structure 20 specifically refers to the distance between the top end of the first holographic image structure 20 and the substrate 50, and similarly, the height of the second holographic image structure 40 specifically refers to the distance between the top end of the second holographic image structure 40 and the substrate 50; because the height of the first holographic image structure 20 is greater than the height of the second holographic image structure 40, when the first holographic image structure 20 and the second holographic image structure 40 are viewed at a certain viewing angle (the viewing angle height is greater than the height of the first holographic image structure 20) at a certain height above the substrate 50, the first holographic image structure 20 will block a part of the second holographic image structure 40, so that the first holographic image structure 20 and the second holographic image structure 40 form a bright-dark interlaced region, the brightness of the first holographic image structure 20 will be lighter (i.e. the brightness of the upper layer holographic image 10 will be lighter), and the brightness of the second holographic image structure 40 will be darker (i.e. the brightness of the lower layer holographic image 30 will be darker); in the present embodiment, it is ensured that the first holographic image structure 20 and the second holographic image structure 40 are processed into appropriate shapes, so that incident light can be reflected and diffracted, and the above-mentioned bright and dark visual effects are generated, and under the condition that the viewing angle is highly appropriate, the upper layer holographic image 10 (bright) and the lower layer holographic image 30 (dark) which are similar to the transparent effect visible to the naked eye can be simultaneously displayed, and the upper layer holographic image 10 and the lower layer holographic image 30 are overlapped together, that is, two layers of holographic images with a layered overlapping effect are formed.
For the sake of understanding, it can be assumed that the substrate 50 is a 'ground plane', and the first holographic image structure 20 is a set of spaced apart 'peaks' standing on the 'ground plane' with a certain height, and the second holographic image structure 40 is located between a part or all of the 'peaks', and since the second holographic image structure 40 itself also has a height, it can be understood that the second holographic image structure 40 and the first holographic image structure 20 together form a continuous 'peaks'.
It should be noted that, as the viewing angle gradually decreases, the second holographic image structure 40 is gradually shielded by the first holographic image structure 20, and the lower layer holographic image 30 gradually becomes dark, and in some extreme viewing angles, when the second holographic image structure 40 is completely shielded by the first holographic image structure 20, the lower layer holographic image 30 cannot be normally viewed; similarly, as the viewing angle gradually increases, the second holographic image structure 40 gradually exposes, and the lower holographic image 30 gradually brightens, and when the second holographic image structure 40 is completely exposed, the brightness of the lower holographic image 30 is at the highest level.
The first holographic image structure 20 and the second holographic image structure 40, and the upper holographic image 10 and the lower holographic image 30 respectively presented on the first holographic image structure 20 and the second holographic image structure 40 are relative, if the height of the first holographic image structure 20 and the height of the second holographic image structure 40 are adjusted, when the height of the first holographic image structure 20 is smaller than the height of the second holographic image structure 40, the positions of the upper holographic image 10 and the lower holographic image 30 on the visual effect level of human eyes will be interchanged correspondingly.
In this embodiment, by the structural design of the first holographic image structure 20 and the second holographic image structure 40 on the material, the macroscopic and hierarchical upper holographic image 10 and the hierarchical lower holographic image 30 can be presented at the same time by using the optical principle and the characteristics of light, such as reflection, diffraction, brightness, and the like of light, and the upper holographic image 10 and the lower holographic image 30 are in the layered overlapping visual effect, so that compared with the technical problems that the traditional holographic image technology has a single display effect, is easily imitated and copied, and the fake performance is reduced, the holographic image structure with the layered overlapping effect provided by this embodiment has many advantages of good product visual effect, high security and anti-counterfeiting performance, and the like.
Further, compared with the technical scheme that the traditional holographic image technology is mainly based on plane display, the holographic image structure with the hierarchical superposition effect provided by the embodiment displays the upper layer holographic image 10 and the lower layer holographic image 30 with various changes in the visual effect of human eyes so as to meet the application requirements of different occasions, so that the visual effect and the security and anti-counterfeiting performance of the product are further improved, in the specific implementation, the upper layer holographic image 10 is a plane holographic image or a three-dimensional holographic image, that is, the upper layer holographic image 10 has two optional situations of a plane holographic image and a three-dimensional holographic image in the visual effect, the lower layer holographic image 30 is a plane holographic image or a three-dimensional holographic image, that is, the lower layer holographic image 30 also has two optional situations of a plane holographic image and a three-dimensional holographic image in the visual effect, so that the upper layer holographic image 10 and the lower layer holographic image 30 can be matched as required, that is: the upper layer holographic image 10 and the lower layer holographic image 30 may be plane holographic images, three-dimensional holographic images, or a combination of the plane holographic images and the three-dimensional holographic images.
The change in the visual effect visible to the naked eye of the upper and lower holographic images 10, 30 and, correspondingly, the change in the shape of the first and second holographic image structures 20, 40 will be exemplified below with reference to the drawings.
As shown in fig. 2 to 4, the upper layer holographic image 10 and the lower layer holographic image 30 are both three-dimensional holographic images, wherein, as shown in fig. 2, the visual effect diagram of the holographic image structure with the hierarchical superposition effect provided in embodiment 1 of the present invention is shown, the upper layer holographic image 10 is a three-dimensional sphere, and at the same time, the lower layer holographic image 30 is a three-dimensional star, in terms of the visual effect, the three-dimensional sphere is superposed on the three-dimensional star, and the three-dimensional sphere and the three-dimensional star can appear at the same time; as shown in fig. 3, which is a schematic plan view of a hologram image structure with a gradation superimposition effect provided in embodiment 1 of the present invention, the first hologram image structure 20 is formed by black and white ring portions as a whole, wherein the black ring portion is a convex portion 21 of the first hologram image structure 20, the white ring portion is a concave portion 22 of the first hologram image structure 20, the first hologram image structure 40 can be seen from the concave portion 22 of the first hologram image structure 20, and similarly, the first hologram image structure 40 also has a black and white ring portion that is shaped and arranged between black and white; as shown in fig. 4, which is a schematic cross-sectional view of a holographic image structure with a hierarchical superposition effect provided in embodiment 1 of the present invention, the higher convex portions are the convex portions 21 of the first holographic image structure 20, and the lower convex portions are the first holographic image structure 40.
As shown in fig. 5-7, the upper layer holographic image 10 is a three-dimensional holographic image, and the lower layer holographic image 30 is a planar holographic image, wherein, as shown in fig. 5, the visual effect diagram of another holographic image structure with a hierarchical superposition effect provided in embodiment 1 of the present invention is shown, the upper layer holographic image 10 is a three-dimensional sphere, and at the same time, the lower layer holographic image 30 is a planar star, and in the visual effect, the three-dimensional sphere is superposed above the planar star, and the three-dimensional sphere and the planar star can be simultaneously displayed; as shown in fig. 6, which is a schematic top view of another hologram structure with a layered overlapping effect provided in embodiment 1 of the present invention, similarly, ring portions with black and white spaces constitute the first hologram structure 20 as a whole, where the black ring is a convex portion 21 of the first hologram structure 20, the white ring is a concave portion 22 of the first hologram structure 20, and the first hologram structure 40 can be seen from the concave portion 22 of the first hologram structure 20, and similarly, the first hologram structure 40 also has black and white spaces defined by a shape; fig. 7 is a schematic cross-sectional view of another hologram image structure with a layered superposition effect according to embodiment 1 of the present invention, and similarly, the higher convex portions are the convex portions 21 of the first hologram image structure 20, and the lower convex portions are the first hologram image structure 40.
As shown in fig. 8-10, the upper layer holographic image 10 is a planar holographic image, and the lower layer holographic image 30 is a three-dimensional holographic image, wherein, as shown in fig. 8, the visual effect diagram of another holographic image structure with a hierarchical superposition effect provided in embodiment 1 of the present invention is shown, the upper layer holographic image 10 is a planar circle, and at the same time, the lower layer holographic image 30 is a three-dimensional star, in which, in the visual effect, the planar circle is superposed on the three-dimensional star, and the planar circle and the three-dimensional star can be simultaneously displayed; as shown in fig. 9, which is a schematic top view of another hologram structure with a layered superposition effect provided in embodiment 1 of the present invention, a black and white vertical line portion constitutes the first hologram structure 20 as a whole, wherein a black vertical line is a convex portion 21 of the first hologram structure 20, a white vertical line is a concave portion 22 of the first hologram structure 20, and the first hologram structure 40 can be seen from the concave portion 22 of the first hologram structure 20, and similarly, the first hologram structure 40 also has a black and white portion determined according to a shape; fig. 10 is a schematic cross-sectional view of another hologram image structure with a layered superposition effect according to embodiment 1 of the present invention, and similarly, the higher convex portions are the convex portions 21 of the first hologram image structure 20, and the lower convex portions are the first hologram image structure 40.
Fig. 11 to 13 show the case where the upper holographic image 10 and the lower holographic image 30 are both planar holographic images, and fig. 11 shows a schematic view of a visual effect of a holographic image structure with a hierarchical superposition effect provided in embodiment 1 of the present invention, where the upper holographic image 10 is a planar circle, and at the same time, the lower holographic image 30 is a planar star, and in the visual effect, the planar circle is superposed on the planar star, and the planar circle and the planar star can appear at the same time; as shown in fig. 12, which is a schematic top view of another hologram structure with a layered overlapping effect provided in embodiment 1 of the present invention, a black and white vertical line portion constitutes the first hologram structure 20 as a whole, wherein a black vertical line is a convex portion 21 of the first hologram structure 20, a white vertical line is a concave portion 22 of the first hologram structure 20, and the first hologram structure 40 can be seen from the concave portion 22 of the first hologram structure 20, and similarly, the first hologram structure 40 also has a black and white portion determined in a shape; fig. 13 is a schematic cross-sectional view of another hologram structure with a layered superposition effect according to embodiment 1 of the present invention, and similarly, the higher convex portions are the convex portions 21 of the first hologram structure 20, and the lower convex portions are the first hologram structure 40.
It should be noted that the above-mentioned stereoscopic or planar image is only applied and exemplified by a simple geometric figure, and in the practical application process, the above-mentioned stereoscopic or planar image may also be any other type of image, including but not limited to the above-mentioned stereoscopic or planar image, and may also be an image of a sign, a logo, a plant, an animal, or the like.
Example 2:
to solve the technical problem that the conventional holographic image technology can achieve a single visual effect and is easily copied in a simulated manner, thereby reducing the anti-counterfeiting performance, based on the same general technical concept as that of embodiment 1, this example 2 provides a method for manufacturing a holographic image structure with a hierarchical superimposition effect, which is used for manufacturing the holographic image structure with the hierarchical superimposition effect described in embodiment 1, and as shown in fig. 14, the method includes:
s100, analyzing the preset upper-layer holographic image and the preset lower-layer holographic image through computer software to obtain an analysis file for processing the first holographic image structure and the second holographic image structure.
The computer software is a program which can be executed by a computer, the computer software has the functions of resolving the holographic image and modeling the three-dimensional graph, can resolve the preset upper-layer holographic image and the preset lower-layer holographic image to form dot patterns of a first holographic image structure and a second holographic image structure corresponding to the upper-layer holographic image and the lower-layer holographic image, can be any pattern, and finally generates a resolving file for processing the first holographic image structure and the second holographic image structure by inputting and adjusting structural parameters such as the shape, the size, the height and the like of the first holographic image structure and the second holographic image structure in the computer software.
S200, transmitting the analysis file to processing equipment, and processing and manufacturing the first holographic image structure and the second holographic image structure through the processing equipment.
The first holographic image structure is used for displaying an upper holographic image, the second holographic image structure is used for displaying a lower holographic image, the upper holographic image is superposed on the lower holographic image, and the upper holographic image and the lower holographic image can be displayed simultaneously.
When the analysis file is transmitted to the processing device in a transmission manner including but not limited to physical copy or network transmission, as shown in fig. 15, in a specific implementation, the processing device processes and manufactures the first holographic image structure and the second holographic image structure, and the method includes:
s201, processing the first holographic image structure into convex parts and concave parts which are arranged at intervals, so that the upper layer holographic image visually has a continuous complete optical structure.
The upper layer holographic image has a continuous and complete optical structure in vision, and is relative to the limit of the capability of human eyes for recognition, namely the first holographic image structure cannot be too dense or too sparse, the too dense structure can provide higher requirements for processing precision, and is also not beneficial to the construction of the second holographic image structure; in practical implementation, as shown in the above cross-sectional view direction, preferably, the width of the convex portion of the first holographic image structure is 0.1-20 μm, the width of the concave portion of the first holographic image structure is 5-20 μm, and the depth of the concave portion 22 of the first holographic image structure is 1-10 μm.
S202, processing the second holographic image structure on the second holographic image structure, so that the lower layer holographic information image is displayed through the concave part of the first holographic image structure.
And combining the size of the lower holographic image and the practical application requirement, processing the second holographic image structure in a plurality of concave parts of the first holographic image structure, or processing the second holographic image structure in all concave parts of the first holographic image structure.
In combination with the characteristics of the research and development and manufacturing industry, in specific implementation, the processing and manufacturing of the first holographic image structure and the second holographic image structure are performed by processing equipment, which specifically includes: before mass production, the first holographic image structure and the second holographic image structure are processed and manufactured by high-precision photoetching equipment or high-precision mechanical equipment, can be copied by special processes such as optical contact or electroplating and the like, and are carried out on a main body with a thermoplastic or UV (ultraviolet) hardenable film surface structure; during mass production, the first holographic image structure and the second holographic image structure are processed and manufactured through rolling equipment; before the mass production, the small-batch trial production and proofing stage of a research and development design link is specifically designated, and during the mass production, the large-batch production stage after the research and development design is finished is specifically designated; in the aspect of production and application, the surface structure is copied only once before mass production, and in the mass production, complex processes such as accurate alignment and the like are not needed through repeated copying and processing, mass copying can be realized through a rolling process, and the efficiency of mass production can be guaranteed.
In summary, according to the holographic image structure with the hierarchical superposition effect and the manufacturing method thereof provided by the invention, under the same light source and the same viewing angle, two layers of holographic images can be simultaneously displayed, further, the hierarchical superposition effect of the two layers of holographic images can be matched according to needs, and can be a planar holographic image, a three-dimensional holographic image, or a combination of the planar holographic image and the three-dimensional holographic image.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. A holographic image structure with a layered superimposition effect, comprising:
a first holographic image structure for displaying an upper holographic image; the first holographic image structure is provided with convex parts and concave parts which are arranged at intervals;
a second holographic image structure for displaying an underlying holographic image; the second holographic image structure is arranged in the concave part of the first holographic image structure; and (c) a second step of,
a substrate for holding the first and second holographic image structures;
the upper-layer holographic image is superposed on the lower-layer holographic image, and the upper-layer holographic image and the lower-layer holographic image can be displayed simultaneously.
2. The holographic image structure with the hierarchical superimposition effect of claim 1, wherein a height of the first holographic image structure is greater than a height of the second holographic image structure.
3. The holographic image structure with the layered overlapping effect of claim 2, wherein the upper layer holographic image is a planar holographic image or a stereoscopic holographic image.
4. The holographic image structure with the layered overlapping effect of claim 3, wherein the lower layer holographic image is a planar holographic image or a stereo holographic image.
5. The holographic image structure with the gradation superposition effect according to any one of claims 1 to 4, wherein the width of the convex portion of the first holographic image structure is 0.1 to 20 μm.
6. The holographic image structure with the hierarchical superimposition effect of any of claims 1 to 4, wherein the width of the concave portions of the first holographic image structure is 5 to 20 μm, and the depth of the concave portions of the first holographic image structure is 1 to 10 μm.
7. The holographic image structure with hierarchical overlaying effect of claim 1, wherein said substrate bottom is provided with a back adhesive.
8. A method for manufacturing a holographic image structure with a layered superposition effect, which is used for manufacturing the holographic image structure with the layered superposition effect of any one of claims 1 to 7, and is characterized in that the method comprises the following steps:
analyzing the preset upper-layer holographic image and the preset lower-layer holographic image through computer software to obtain an analysis file for processing the first holographic image structure and the second holographic image structure;
transmitting the analysis file to processing equipment, and processing and manufacturing the first holographic image structure and the second holographic image structure through the processing equipment;
the first holographic image structure is used for displaying an upper holographic image, the second holographic image structure is used for displaying a lower holographic image, the upper holographic image is superposed on the lower holographic image, and the upper holographic image and the lower holographic image can be displayed simultaneously.
9. The method for producing a holographic image structure with a hierarchical superposition effect according to claim 8, wherein the first holographic image structure and the second holographic image structure are processed and produced by a processing device, and the method comprises:
processing the first holographic image structure into convex parts and concave parts which are arranged at intervals, so that the upper layer holographic image visually has a continuous and complete optical structure;
and processing the second holographic image structure in the concave part of the first holographic image structure, so that the lower layer holographic information image is displayed through the concave part of the first holographic image structure.
10. The method for producing a holographic image structure with a hierarchical superimposition effect according to claim 8 or 9, wherein the processing and producing the first holographic image structure and the second holographic image structure by the processing device specifically includes:
before mass production, the first holographic image structure and the second holographic image structure are processed and manufactured by high-precision photoetching equipment or high-precision mechanical equipment; and in mass production, the first holographic image structure and the second holographic image structure are processed and manufactured by rolling equipment.
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