Micro image-text array method and three-dimensional dynamic imaging material with micro image-text

Abstract

The invention relates to the technical field of micro-lens three-dimensional imaging, in particular to a micro image-text array method and a three-dimensional dynamic imaging material with micro images and texts, and aims to solve the problem that micro-lens three-dimensional imaging cannot meet the requirements of fixed-view-angle stable imaging and variable-view-angle dynamic response at the same time. According to the technical scheme, the film is characterized by comprising a transparent base material layer; a micro image-text structure layer; the micro lens structure layer is located on the side, away from the micro image-text structure layer, of the transparent base material layer; the vacuum coating layer is arranged on the surface of the micro lens structure, and the micro lens structure layer is matched with the micro image-text structure layer, so that the three-dimensional dynamic imaging material presents a three-dimensional dynamic stereoscopic image which is integrated with micro images and texts and changes along with the observation angle within the viewing angle range, and the micro image-text structures with different viewing angle frame rates are segmented and fused according to the viewing angle. According to the three-dimensional dynamic imaging thin film material, the gradual change of the image formed by reflecting the micro image-text through the vacuum coating layer can be seen by converting the viewing angle or deflecting the material.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of microlens three-dimensional imaging, in particular to a micro-pattern array method and a three-dimensional dynamic imaging material with micro-patterns. BACKGROUND

[0002] At present, microlens three-dimensional imaging technology mainly realizes imaging through optical cooperation between a microlens array and a micro-pattern to be imaged, and presents a three-dimensional image with a floating effect or a depth of field effect in human vision. The microlens three-dimensional imaging technology has achieved certain three-dimensional visual effects, mainly including two ways of multi-array pattern dynamic imaging and single-plane stable imaging.

[0003] The array pattern dynamic imaging can enable an imaging pattern to run in the same direction following the viewing angle when viewed at different angles, and the imaging unit covers the entire effective area. Although the effect is novel, the imaging pattern is an arrayed repeated structure, and the observer's vision is prone to fatigue.

[0004] The single-plane stable imaging precisely controls the focal length of the microlens array, the arrangement period of the micro-pattern, and the alignment accuracy of the two, so that the microlens only optically converges on a single set of micro-patterns to form a stable three-dimensional pattern on the material surface that does not change at each viewing angle. However, the dynamic effect is single, and only one plane of stable imaging can be presented, which lacks visual impact.

[0005] The above two microlens three-dimensional imaging technologies cannot simultaneously satisfy fixed-angle stable imaging and variable-angle dynamic response in actual application, and therefore a new technical solution is proposed to solve the problems in the prior art. SUMMARY

[0006] The purpose of the present application is to provide a micro-pattern array method and a three-dimensional dynamic imaging material with micro-patterns to solve the problem that microlens three-dimensional imaging cannot simultaneously satisfy fixed-angle stable imaging and variable-angle dynamic response in the prior art.

[0007] The technical solution of the present application is a micro-pattern array method and a three-dimensional dynamic imaging material with micro-patterns, comprising: The micro-pattern array method comprises the following steps: S1, obtaining two or more initial micro-patterns, the initial micro-patterns are arranged in the order of a first micro-pattern to an nth micro-pattern, each initial micro-pattern is dispersed into a plurality of array fragments arranged in an array, and the array fragments are marked with fragment markers; S2, taking at least part of the initial micro-patterns, dividing each initial micro-pattern into at least one sub-unit in the same division manner, and determining the position of the sub-unit of one initial micro-pattern as a standard position; S3, the subunit is divided into two or more sub-microtext according to the specific period required by three-dimensional imaging, and the sub-microtext is sorted as a first sub-microtext to an n-th sub-microtext; S4, the n-th sub-microtext of the same subunit in each n-th microtext is sequentially fused according to the order of the sub-microtext, and a plurality of collections are formed; S5, the plurality of collections are placed in a standard position to form an integrated microtext, the integrated microtext and the initial microtext without cutting form an integrated microtext unit, the integrated microtext unit is scaled according to the imaging magnification relationship to form an integrated microtext, and the different initial microtexts in the same collection are set in different three-dimensional imaging states.

[0008] Preferably, the line width of the sub-microtext is not less than 1 μm.

[0009] Preferably, the line width of the integrated microtext is not greater than 20 μm.

[0010] The application also discloses a three-dimensional dynamic imaging material with microtext, comprising the integrated microtext formed by the microtext array method of any one of the above, and further comprising: a transparent substrate layer; a microlens structure layer, the microlens structure layer is located on the side of the transparent substrate layer away from the microtext structure layer, and the microlens structure layer comprises a periodic array of a plurality of microlens units; a vacuum coating layer, the vacuum coating layer is arranged on the surface of the microlens structure; the microtext structure layer is located on one side of the transparent substrate layer, the integrated microtext is an image of the microtext structure layer, the arrangement mode of the integrated microtext is the same as that of the microlens unit, the arrangement period of the array fragment is the same as that of the microlens unit, and the absolute value |Tb-Tr| of the difference between the arrangement period Tb of the fragment mark and the arrangement period Tr of the microlens unit is 0.01 μm-200 μm; the microlens structure layer is matched with the microtext structure layer, so that the three-dimensional dynamic imaging material presents a three-dimensional dynamic image of the integrated microtext changing with the observation angle within the viewing angle range.

[0011] Preferably, the difference between the refractive indexes of the microtext structure layer and the transparent substrate layer is less than or equal to 0.1, and the difference between the refractive indexes of the microlens structure layer and the transparent substrate layer is less than or equal to 0.1.

[0012] Preferably, the array direction of the microtext structure layer is consistent with that of the microlens structure layer.

[0013] Preferably, the micro-pattern layer has recesses or cavities filled with colored ink, the recesses or cavities of the integrated micro-pattern have a width of 0.5-20 μm in at least one direction, and the depth of the recesses or cavities is 0.5-3 μm.

[0014] Preferably, the array of the microlens structure layer is arranged in a honeycomb array, a rectangular array or a rectangular staggered array.

[0015] Preferably, the distance between any two adjacent micro-lens units is equal, and the spacing between any two adjacent integrated micro-patterns is the same.

[0016] Preferably, the material of the vacuum coating layer is one or a combination of at least two of high reflectivity media or oxides thereof.

[0017] Compared with the prior art, the advantages of the present application are: The three-dimensional dynamic imaging material with micro-patterns realizes three-dimensional imaging through the micro-patterns printed on both sides of the transparent substrate, the micro-lens structure features, and the printing thickness, color filling and coating. On this basis, the micro-pattern structures with different viewing angle frame rates are segmented and fused according to the viewing angle to produce a three-dimensional dynamic imaging film material. When the viewing angle is converted or the material is deflected, the image formed by the reflection of the micro-patterns through the vacuum coating layer can be seen to change, and one image changes or gradually changes into another image. The frame rate and effect of the change can be segmented and combined with different numbers of micro-pattern images according to the requirements, and the imaging effect of each segmented micro-pattern image.

[0018] (1) When the integrated micro-patterns are arranged separately to form a micro-pattern structure layer, a stable, clear and non-array repeated three-dimensional image can be observed at a fixed distance and a fixed viewing angle. (2) When the viewing angle is slowly changed, the stable three-dimensional image can realize continuous morphological changes, detail switching and / or position running effects according to the viewing angle changes, which not only retains the imaging stability of the fixed viewing angle, but also has the dynamic interactivity of the changing viewing angle. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in conjunction with the drawings and examples: Figure 1 The structure diagram of the three-dimensional dynamic imaging material containing the initial micro-pattern image according to the present application; Figure 2 The structure composition diagram of the integrated micro-pattern array method according to the present application; Figure 3 The structure diagram of the three-dimensional dynamic imaging material according to the present application; Figure 4The schematic diagram of the array fragments after the initial micrograph is dispersed and superimposed; Figure 5 The enlarged view of the array fragments of the present application; Figure 6 The structural schematic diagram of the array fragments, fragment marks and microlens units of the present application.

[0020] Wherein: 1, initial micrograph; 101, subunit; 11, first subunit in the first micrograph; 12, first subunit in the second micrograph; 13, first subunit in the third micrograph; 14, array fragment; 15, fragment mark; 21, first sub-micrograph in the first subunit of the first micrograph; 22, second sub-micrograph in the first subunit of the second micrograph; 23, third sub-micrograph in the first subunit of the third micrograph; 3, collection; 4, transparent substrate layer; 5, micrograph structure layer; 51, color ink; 6, microlens structure layer; 61, microlens unit; 7, vacuum coating layer; 8, specific distance position; 9, three-dimensional image. DETAILED DESCRIPTION

[0021] The content of the present application will be further described in detail in combination with specific embodiments: For example Figure 1 , Figure 2 , Figures 4-6As shown, a three-dimensional dynamic imaging material with microtextures includes: a transparent substrate layer 4, a microtexture structure layer 5, a microlens structure layer 6, and a vacuum-deposited layer 7. The transparent substrate layer 4 is made of various polymer films. The microtexture structure layer 5 is located on one side of the transparent substrate layer 4 and includes several integrated microtextures arranged in a periodic array. The integrated microtextures are photolithographically formed in a recessed manner. The refractive index difference between the microtexture structure layer 5 and the transparent substrate layer 4 is less than or equal to 0.1. The microlens structure layer 6 is located on the side of the transparent substrate layer 4 away from the microtexture structure layer 5. The microlens structure layer 6 is made of a UV-curable material, such as a photocurable resin. The refractive index difference between the microlens structure layer 6 and the transparent substrate layer 4 is less than or equal to 0.1. The vacuum-deposited layer 7 is disposed on the surface of the microlens structure layer 6 and is made of a high-polymer film. The reflective medium or its oxide, or a combination of at least two of these, is used. The microlens structure layer 6 comprises a periodically arrayed plurality of microlens units 61. The surface of each microlens unit 61 is a standard spherical or aspherical surface. The structural morphology of the microlens units 61 meets the requirements of three-dimensional imaging. The microlens units 61 have a specific array pattern and a specific period. The array pattern of the microlens structure layer 6 is a honeycomb array arrangement, a rectangular array arrangement, or a rectangular staggered array arrangement, preferably a honeycomb arrangement or a rectangular array arrangement. The integrated microtext and microimages are arranged in the same way as the microlens units 61. The distance between any two adjacent microlens units 61 is equal, and the spacing between any two adjacent array fragments 14 is also equal. The period difference between the fragment markers 15 and the microlens units 61 meets the requirements of three-dimensional imaging. The relationship between the period difference and the imaging effect is... Where M is the magnification, Tb is the arrangement period of fragment marker 15, and Tr is the arrangement period of microlens unit 61. The arrangement period of fragment marker 15 is close to that of microlens unit 61, but the integrated micro-image and microlens unit 61 maintain a difference in arrangement period. The arrangement of the integrated micro-image and microlens unit 61 is the same. The arrangement period of array fragment 14 is the same as that of microlens unit 61. The absolute value of the difference between the arrangement period Tb of fragment marker 15 and the arrangement period Tr of microlens unit 61 is |Tb-Tr The Tb-Tr difference ranges from 0.01μm to 200μm. When the difference is positive, the imaging effect is upward, and when the difference is negative, the imaging effect is downward. The array direction and angle of the microtexture structure layer 5 and the microlens structure layer 6 are consistent. The period difference between the integrated microtexture and microlens unit 61 satisfies the proportional relationship of the moiré imaging principle. The microlens structure layer 6 and the microtexture structure layer 5 are matched so that the three-dimensional dynamic imaging material presents a three-dimensional dynamic image of the microtexture changing with the observation angle within the field of view.

[0022] like Figure 3As shown, the micro-pattern structure layer 5 has recesses or cavities filled with color ink 51, which is at least one of ink, metal, pigment, and dye. The integrated micro-pattern structure meets the imaging and color filling requirements: the micro-pattern structure layer 5 is composed of only a plane and recesses or cavities, the groove inner wall of the recesses or cavities is smooth and clear, the recesses or cavities have a width of 0.5-20 μm in at least one direction, and the depth of the recesses or cavities is 0.5-3 μm. The distance between the color ink 51 and the vacuum-coated film layer 7, the focal length of the micro-lens unit 61 reflection imaging, and the image distance satisfy the following relationship: where f is the focal length of the micro-lens unit 61 reflection imaging, u is the distance between the color ink 51 and the vacuum-coated film layer 7, and v is the image distance. The imaging height is proportional to the magnification, and the relationship between the imaging height and the film thickness and the thin film refractive index is: where H is the suspension or sinking depth, D is the film thickness, and n is the thin film refractive index.

[0023] As shown in Figure 2 and Figure 3 , the micro-pattern array method comprises the following steps: S1, obtaining two or more initial micro-patterns 1, the initial micro-patterns 1 are arranged as first micro-pattern to nth micro-pattern, and each initial micro-pattern 1 is dispersed into a plurality of array fragments 14 arranged in an array, and the array fragments 14 are marked with fragment marks 15; S2, taking at least part of the initial micro-patterns 1, and dividing each initial micro-pattern 1 into at least one sub-unit 101 in the same way, and determining the position of the sub-unit 101 of one of the initial micro-patterns 1 as a standard position; S3, dividing the sub-unit 101 into two or more sub-micro-patterns according to a specific period difference required by three-dimensional imaging, and arranging the sub-micro-patterns as first sub-micro-pattern to nth sub-micro-pattern according to the cutting; S4, sequentially fusing the nth sub-micro-pattern of the same sub-unit 101 in each nth micro-pattern according to the order of the sub-micro-patterns to form a plurality of collections 3; S5, placing the plurality of collections 3 at the standard position to form an integrated micro-pattern, combining the integrated micro-pattern with the initial micro-patterns 1 without cutting to form an integrated micro-pattern unit, scaling the integrated micro-pattern unit according to the imaging magnification relationship to form an integrated micro-pattern, and setting different initial micro-patterns 1 in the same collection 3 to different three-dimensional imaging states.

[0024] In the above method, the integrated micrograph 3 is formed by the n-th sub-micrograph of the same sub-unit 101 in each n-th micrograph according to a specific position, a specific viewing angle and a specific proportion, the imaging state of each sub-micrograph is different, the integrated micrograph is the image of the micrograph structure layer 5, the line width of the sub-micrograph is not less than 1 μm, the line width of the integrated micrograph is not greater than 20 μm, the sub-unit 101 and the sub-micrograph are cut into regular hexagons according to the specific position required for imaging, and the sub-unit 101 and the sub-micrograph can also be mirror set according to a specific manner required for imaging.

[0025] By placing the observation material still, changing the viewing angle or rotating the material at a specific angle without changing the viewing angle, the observer will see a stereoscopic dynamic imaging changing with the viewing angle, and each angle will see a different imaging, multiple angles will see multiple images, and multiple images will be continuous when the viewing angle is changed or the material is rotated at a specific angle. Three-dimensional imaging will be seen. When observing the three-dimensional imaging of the integrated micrograph at the first angle, the first state of the integrated micrograph is displayed, that is, the three-dimensional imaging state of the first micrograph at the first angle. When observing the three-dimensional imaging of the integrated micrograph at the second angle, the second state of the integrated micrograph is displayed, that is, the three-dimensional imaging state of the second micrograph at the second angle. When observing the three-dimensional imaging of the integrated micrograph at the n-th angle, the n-th state of the integrated micrograph is displayed, that is, the three-dimensional imaging state of the n-th micrograph at the n-th angle.

[0026] Embodiment

[0027] As Figures 1-6As shown, three initial micro-patterns 1 are acquired, the first micro-pattern is a butterfly with wings raised 45 degrees to the sides from the center of the body, the second micro-pattern is a butterfly with wings raised 46 degrees, and the third micro-pattern is a butterfly with wings raised 47 degrees; the butterfly wing part of the initial micro-pattern 1 is divided into three initial sub-units 101, each initial micro-pattern 1 is divided into a plurality of sub-units 101 in the same division manner, and the position of the sub-unit 101 of the first micro-pattern is determined as a standard position; the sub-units 101 are divided into three sub-micro-patterns according to a specific period difference required by three-dimensional imaging, and the sub-micro-patterns are sequentially sorted as a first sub-micro-pattern, a second sub-micro-pattern, and a third sub-micro-pattern; the first sub-micro-pattern 21 in the first sub-unit of the first micro-pattern, the second sub-micro-pattern 22 in the first sub-unit of the second micro-pattern, and the third sub-micro-pattern 23 in the first sub-unit of the third micro-pattern are sequentially fused according to the order of the sub-micro-patterns to form a plurality of sets 3, the plurality of sets 3 are placed in the standard position to form an integrated micro-pattern, the integrated micro-pattern and the initial micro-pattern 1 except the butterfly wing part form an integrated micro-pattern unit, and the integrated micro-pattern unit is scaled according to an imaging magnification relationship to form an integrated micro-pattern; the integrated micro-pattern is an image of a micro-pattern structure layer 5; due to the different imaging states of the three initial micro-patterns 1 in the set 3, the imaging effect is that an observer sees a butterfly with wings flapping at different angles; adjusting the imaging state of the initial micro-pattern 1 can also design the imaging effect as the butterfly moving in a designed direction while the wings are flapping.

[0028] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A microdot array method, characterized by, It comprises the following steps: S1, obtaining two or more initial micro-patterns (1), the initial micro-patterns (1) are arranged in the order of the first micro-pattern to the nth micro-pattern, each of the initial micro-patterns (1) is divided into a plurality of array fragments (14) arranged in an array, and the array fragments (14) are marked with fragment marks (15); S2, taking at least part of the initial micro-patterns (1), each of the initial micro-patterns (1) is divided into at least one subunit (101) in the same way, and the position of the subunit (101) of one of the initial micro-patterns (1) is determined as a standard position; S3, the subunit (101) is divided into two or more sub-micro-patterns according to a specific period difference required by three-dimensional imaging, and the sub-micro-patterns are arranged in the order of the first sub-micro-pattern to the nth sub-micro-pattern; S4, sequentially fusing the nth sub-micro-patterns of the same subunit (101) in each nth micro-pattern according to the order of the sub-micro-patterns to form a plurality of collections (3); S5, the plurality of collections (3) are placed in the standard position to form an integrated micro-pattern, the integrated micro-pattern and the initial micro-pattern (1) without being cut are combined to form an integrated micro-pattern unit, the integrated micro-pattern unit is scaled according to the imaging magnification relationship to form an integrated micro-pattern, and the different initial micro-patterns (1) in the same collection (3) are set in different three-dimensional imaging states.

2. The microplot array method of claim 1, wherein: The line width of the sub-micro-pattern is not less than 1 μm.

3. The microplot array method of claim 2, wherein: The line width of the integrated micro-pattern is not greater than 20 μm.

4. A three-dimensional dynamic imaging material having microicons, comprising integrated microicons made by the microicon array method of any one of claims 1 to 3, characterized in that, It further comprises: a transparent substrate layer (4); a microlens structure layer (6) located on the side of the transparent substrate layer (4) away from the micro-pattern structure layer (5), the microlens structure layer (6) comprising a plurality of microlens units (61) arranged in an array; a vacuum coating layer (7) arranged on the surface of the microlens structure layer (6); the micro-pattern structure layer (5) is located on one side of the transparent substrate layer (4), the integrated micro-pattern is an image of the micro-pattern structure layer (5), the integrated micro-pattern has the same arrangement as the microlens units (61), the array fragments (14) have the same arrangement period as the microlens units (61), and the absolute value |Tb-Tr| of the difference between the arrangement period Tb of the fragment marks (15) and the arrangement period Tr of the microlens units (61) is 0.01 μm-200 μm; the microlens structure layer (6) is matched with the micro-pattern structure layer (5) to make the three-dimensional dynamic imaging material present a three-dimensional dynamic image of the integrated micro-pattern changing with the observation angle within a viewing angle range.

5. The three-dimensional dynamic imaging material with micro-pattern according to claim 4, characterized in that: The difference between the refractive indexes of the micro-pattern structure layer (5) and the transparent substrate layer (4) is less than or equal to 0.1, and the difference between the refractive indexes of the microlens structure layer (6) and the transparent substrate layer (4) is less than or equal to 0.

1.

6. The three-dimensional dynamic imaging material with micro-pattern according to claim 4, characterized in that: The array direction and angle of the micro-pattern structure layer (5) and the microlens structure layer (6) are consistent.

7. The three-dimensional dynamic imaging material with micro-pattern according to claim 4, characterized in that: The micro-pattern structure layer (5) has recesses or cavities filled with colored ink (51), and the recesses or cavities of the integrated micro-pattern have a width of 0.5-20 μm in at least one direction, and a depth of 0.5-3 μm.

8. The three-dimensional dynamic imaging material with micro-pattern according to claim 4, characterized in that: The array mode of the microlens structure layer (6) is a honeycomb array arrangement, a rectangular array arrangement or a rectangular staggered array arrangement.

9. The three-dimensional dynamic imaging material with micro-pattern according to claim 4, characterized in that: The distance between any two adjacent micro-lens units (61) is equal, and the spacing between any two adjacent integrated micro-patterns is the same.

10. The three-dimensional dynamic imaging material with microtext according to claim 4, characterized in that: The material of the vacuum coating layer (7) is a combination of one or at least two of high reflectivity media or oxides thereof.

Images