Optical imaging texture structure

Abstract

The utility model provides an optical imaging texture structure, which comprises a micro-nano embossment structure area and a micro-nano laser structure area, embossment bulges of the micro-nano embossment structure area and laser bulges 21 of the micro-nano laser structure area are periodically arranged in a preset range, the micro-nano laser structure area is arranged along the periphery of the micro-nano embossment structure area, and the micro-nano embossment structure area is arranged along the periphery of the micro-nano laser structure area. The cycle of the embossment protrusions is gradually reduced in the direction close to the micro-nano laser structure area, so that transition between the embossment effect and the laser effect is natural, and the natural biological simulation effect is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-nano structures, in particular to an optical imaging texture structure. Background Art

[0002] At present, micro-nano structure decoration products are gradually developing towards simulating the surface mechanism and texture of natural organisms, so that artificial products have natural aesthetic characteristics, improve the tactile and visual effects of products, and enhance the expressiveness of the designed product form.

[0003] Please refer to Figure 1 The prior art proposes a technology combining laser effect and platinum relief effect. The main effect is metal relief texture. The fusion of laser effect and relief effect is mainly achieved through the technical means of point inlay. The fusion and gradient effect depends on the point selection method. However, no matter which point selection method is used, there is a defect that the effect boundary is obvious (such as Figure 1 In addition, the point selection method is also limited by the size of the bionic effect to be expressed. Generally, it is necessary to select points within a range greater than 5 mm, such as Figure 2 As shown in the figure, to achieve the point-taking effect, a sufficient gradient area is required. The minimum resolution of the point-taking needs to depend on the size of the structural period of the platinum relief effect, so that the minimum unit point of the point-taking is larger than the period of the platinum relief effect, otherwise there will be no platinum effect. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an optical imaging texture structure, aiming to make the transition between the relief effect and the laser effect natural, forming a natural biological simulation effect.

[0005] The utility model provides an optical imaging texture structure, comprising a micro-nano relief structure area and a micro-nano laser structure area, the relief protrusions of the micro-nano relief structure area and the laser protrusions of the micro-nano laser structure area are periodically arranged within a preset range, the micro-nano laser structure area is arranged along the periphery of the micro-nano relief structure area, and the period of the relief protrusions gradually decreases along the direction approaching the micro-nano laser structure area.

[0006] In one embodiment, the area ratio of the micro-nano relief structure area to the micro-nano laser structure area is 10:1-50:1.

[0007] In one embodiment, the height of the embossed protrusions is 2 μm-5 μm, and the height of the laser protrusions is 0.03 μm-2 μm.

[0008] In one embodiment, the height of the embossed protrusion is greater than the height of the laser protrusion.

[0009] In one embodiment, the period range of the laser protrusions is 0.6 μm-5 μm, and the ratio of the height of the laser protrusions to the period range of the laser protrusions is less than 0.5.

[0010] In one embodiment, the ratio of the period range of the laser protrusions to the wavelength of the preset light source is greater than 10.

[0011] In one embodiment, the period of the laser protrusions is smaller than the period of the embossed protrusions.

[0012] In one embodiment, the period of the embossed protrusions ranges from 5 μm to 150 μm.

[0013] In one embodiment, the cross section of the embossed protrusion is a single-sided slope or a double-sided slope, and the cross section of the laser protrusion is an arc or a triangle.

[0014] In one embodiment, the top of the laser protrusion is a sharp corner or a rounded corner.

[0015] The optical imaging texture structure provided by the utility model includes a micro-nano relief structure area and a micro-nano laser structure area. The relief protrusions set in the micro-nano relief structure area and the laser protrusions set in the micro-nano laser structure area are arranged periodically within a preset range. The relief protrusions arranged periodically within the preset range form a continuous sawtooth shape. The micro-nano laser structure area is arranged along the periphery of the micro-nano relief structure area, so that the micro-nano laser structure area and the micro-nano relief structure area can be arranged alternately, and the period of the relief protrusions gradually decreases along the direction close to the micro-nano laser structure area. The transition between the relief effect and the laser effect is more natural, and the boundary is not obvious. In addition, the size and arrangement of the micro-nano laser structure area and the micro-nano relief structure area can be adjusted according to actual needs without relying on the size of the gradient area of ​​the micro-nano laser structure area or the micro-nano relief structure area. The main embodied effect can be adjusted at will, among which the three-dimensional relief effect is the main expression effect, which is closer to the appearance of natural organisms, such as the simulation effect of mother of pearl. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of micro-nano laser structure and micro-nano relief structure in the prior art inlaid in a point-by-point manner.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the midpoint range.

[0019] Figure 3 It is a schematic diagram of the optical imaging texture structure in the first embodiment of the utility model.

[0020] Figure 4 for Figure 3 Schematic diagram of grayscale imaging of texture structure in optical imaging.

[0021] Figure 5 for Figure 4 Schematic diagram of the cross-section of the local A of the optical imaging texture structure.

[0022] Figure 6 It is a grayscale schematic diagram of the optical imaging texture structure in the second embodiment of the utility model.

[0023] Figure 7 for Figure 6 B is a partial enlarged view of the optical imaging texture structure.

[0024] Figure 8 for Figure 7 Schematic diagram of the cross-section D of the local part of the optical imaging texture structure B. DETAILED DESCRIPTION

[0025] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0028] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0029] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0030] Please continue to refer to Figure 1 and Figure 2 The existing technology limits the arrangement of laser effect and platinum relief effect to a certain extent by taking points. For example, in order to weaken the boundary line between the laser effect and the platinum relief effect, the slope inclination of the micro-nano laser groove and the cross-sectional line of the groove need to be within a specific range. In addition, the existing technology can only take the platinum relief effect as the main performance effect, and it is difficult to reflect the laser effect as a whole. Random point inlay can form platinum relief effect and laser color effect in parts respectively, but it is still platinum relief effect as a whole. The simulation effect of the micro-nano structure obtained is poor, and there is a big difference in the appearance of natural organisms.

[0031] First embodiment

[0032] Please refer to Figure 3-5 An embodiment of the utility model on one hand provides an optical imaging texture structure, including a micro-nano relief structure area 10 and a micro-nano laser structure area 20, the relief protrusions 11 of the micro-nano relief structure area 10 and the laser protrusions 21 of the micro-nano laser structure area 20 are arranged periodically within a preset range, the relief protrusions 11 are serrated, the micro-nano laser structure area 20 is arranged along the periphery of the micro-nano relief structure area 10, and the period L11 of the relief protrusions 11 gradually decreases along the direction approaching the micro-nano laser structure area 20.

[0033] Specifically, the micro-nano laser structure area 20 is distributed around the micro-nano relief structure area 10, and can be further located between two adjacent micro-nano relief structure areas 10, so that the distribution between the relief effect and the laser effect is more uniform, and the distribution of the micro-nano relief structure area 10 is also more compact, which lays the foundation for the overall relief effect. The period L11 of the relief protrusion 11 gradually decreases in the direction close to the micro-nano laser structure area 20, so that a gradual area can be formed between each micro-nano relief structure area 10, which is convenient for setting the micro-nano laser structure area 20, and the transition between the laser effect and the relief effect can also be more natural.

[0034] In this embodiment, the area ratio of the micro-nano relief structure area 10 to the micro-nano laser structure area 20 is in a range of 10:1 to 50:1.

[0035] Specifically, the appearance optical effect of natural shellfish has a natural relief curvature as a whole. According to this principle, the micro-nano relief structure should have a larger area. Taking the mother-of-pearl as an example in this embodiment, when the area presenting the relief effect and the area presenting the laser effect are in the range of 10:1~50:1, the whole presents a relief effect, and a slight laser effect is also present as a whole. At this time, the appearance effect embodied is most similar to that of the mother-of-pearl.

[0036] Furthermore, the area ratio of the micro-nano relief structure area 10 and the micro-nano laser structure area 20 can be specifically 10:1, 12:1, 14:1, 15:1, 17:1, 19:1, 22:1, 25:1, 28:1, 33:1, 37:1, 39:1, 42:1, 46:1, 47:1, 49:1, 50:1, etc., which is not limited here.

[0037] In this embodiment, the height H1 of the embossed protrusion 11 is greater than the height H2 of the laser protrusion 21 .

[0038] Furthermore, the height H1 of the embossed protrusion 11 is 2 μm-5 μm, and the height H2 of the laser protrusion 21 is 0.03 μm-2 μm.

[0039] Specifically, the relief protrusion 11 mainly reflects the relief effect, so the relief protrusion 11 in the micro-nano relief structure area 10 and the laser protrusion 21 in the micro-nano laser structure area 20 must always maintain a certain height difference to ensure the overall effect of the relief protrusion 11. Since the relief effect and the laser effect need to be set alternately, and the groove type between the relief protrusions 11 needs to be further designed according to the actual preset effect, it is necessary to set the height H2 of the relief protrusion 11 and the laser protrusion 21 within an appropriate range to avoid the lateral adjustment of the relief protrusion 11 and the laser protrusion 21. It is also necessary to avoid the need to simultaneously widen the width of the relief protrusion 11 and the laser protrusion 21 when the height H2 of the relief protrusion 11 and the laser protrusion 21 is higher, so as to avoid loss of visual fineness.

[0040] In this embodiment, the period range L2 of the laser protrusions 21 is 0.6 μm-5 μm, and the ratio of the height H2 of the laser protrusions 21 to the period range L2 of the laser protrusions 21 is less than 0.5.

[0041] Specifically, when the period range L2 of the laser protrusion 21 is between 0.6μm and 5μm, the dispersion is large and presents rainbow colors. The ratio of the height H2 of the laser protrusion 21 to the period range L2 of the laser protrusion 21 should be less than 0.5. The reason is that the higher the height H2 of the laser protrusion 21, the easier it is for the laser protrusions 21 to block the light source from each other, resulting in an unclear laser effect. At this time, it is necessary to reduce the ratio between the depth of the laser protrusion 21 and the period range L2 of the laser protrusion 21. Although the laser effect exposed by each laser protrusion 21 is relatively small, the number of laser protrusions 21 or the total exposed area of ​​the laser protrusion 21 as a whole reflects a slightly colorful relief effect as a whole. However, the period L21 of the laser protrusion 21 should not be too large. If it exceeds 5μm, it is difficult to obtain a colorful effect.

[0042] In this embodiment, a side of the embossed protrusion 11 close to the micro-nano laser structure area 20 is inclined from the top of the embossed protrusion 11 toward the micro-nano laser structure area 20 .

[0043] Specifically, when the laser protrusion 21 in the micro-nano laser structure area 20 is inclined away from the micro-nano laser structure area 20 , a blazing angle is formed, so that the brightness is improved, presenting a platinum relief effect.

[0044] In other embodiments, the side of the relief protrusion 11 facing away from the micro-nano laser structure area 20 is inclined from the top of the relief protrusion 11 toward the middle of the micro-nano relief structure area 10 .

[0045] In this embodiment, the period L21 of the laser protrusions 21 is smaller than the period L11 of the relief protrusions 11 , and the micro-nano relief structure area 10 and the surrounding micro-nano laser structure area 20 together form a triangular pyramid.

[0046] Specifically, the period L11 of the relief protrusion 11 in the middle of the micro-nano relief structure area 10 is the largest, which is 50 μm. At the same time, the period L11 of the relief protrusion 11 gradually decreases in the direction close to the micro-nano laser structure area 20, and the period L21 of the laser protrusion 21 connected thereto gradually decreases in the direction away from the micro-nano relief structure area 10 until the period L21 of the laser protrusion 21 is 1 μm. The height H2 of the laser protrusion 21 is 1.5 μm, and the side of the laser protrusion 21 away from the micro-nano laser structure area 20 is inclined from the top of the laser protrusion 21 to the middle of the micro-nano laser structure area 20. There is no need to take a point. When the light source is irradiated, according to the period change, the laser color changes from color to platinum from the middle of the triangular pyramid to the periphery.

[0047] In this embodiment, the maximum distance between the micro-nano laser structure areas 20 located on two opposite sides of the micro-nano relief structure area 10 is 1 mm-3 mm, that is, the bottom width of the triangular pyramid is 1 mm-3 mm.

[0048] Furthermore, the maximum distance is preferably 2 mm.

[0049] In this embodiment, the period L2 of the laser protrusions 21 ranges from 1 μm to 3 μm, and the period L11 of the embossed protrusions 11 ranges from 5 μm to 150 μm.

[0050] In this embodiment, the cross-section of the relief protrusion 11 is a single-sided slope or a double-sided slope, and the cross-section of the laser protrusion 21 is a triangle, that is, its top is a sharp corner, and the side away from the micro-nano relief structure area 10 is inclined from the top of the laser protrusion 21 to the middle of the micro-nano laser structure.

[0051] The optical imaging texture structure provided by the utility model comprises a micro-nano relief structure area 10 and a micro-nano laser structure area 20. The relief protrusions 11 arranged in the micro-nano relief structure area 10 and the laser protrusions 21 arranged in the micro-nano laser structure area 20 are arranged periodically within a preset range. The relief protrusions 11 arranged periodically within the preset range form a continuous sawtooth shape. The micro-nano laser structure area 20 is arranged along the peripheral edge of the micro-nano relief structure area 10, so that the micro-nano laser structure area 20 and the micro-nano relief structure area 10 can be arranged alternately, and the period L11 of the relief protrusions 11 gradually decreases in the direction close to the micro-nano laser structure area 20, so that the transition between the relief effect and the laser effect is more natural, and the boundary is not obvious. In addition, the size and arrangement of the micro-nano laser structure area 20 and the micro-nano relief structure area 10 can be adjusted according to actual needs without relying on the size of the gradient area of ​​the micro-nano laser structure area 20 or the micro-nano relief structure area 10. The main performance effects can be adjusted at will, among which the three-dimensional relief effect as the main performance effect is closer to natural organisms, such as the simulation effect of mother of pearl.

[0052] Second embodiment

[0053] Please refer to Figure 6-8 Another aspect of the present invention provides an optical imaging texture structure, which is different from the first embodiment in that the cross-section of the laser protrusion 21 is arc-shaped, that is, the top thereof is rounded, which makes the slope of the laser protrusion 21 softer, and the micro-nano relief structure area 10 and the micro-nano laser structure area 20 around it form a hill shape. The period L11 of the relief protrusion 11 is greater than the period of the micro-nano protrusion, and the maximum period of the relief protrusion 11 is 100μm, and the period L11 of the relief protrusion 11 in the middle of the micro-nano relief structure area 10 is the largest, and gradually decreases toward the edge of the micro-nano relief structure, and the height H1 of the relief protrusion 11 gradually decreases from 3μm to 3μm. The minimum period L21 of the laser protrusion 21 is 0.5 μm, and the laser protrusion 21 of the micro-nano laser structure area 20 gradually decreases from the side close to the micro-nano relief structure area 10 to the middle of the micro-nano structure area. The height H2 of the laser protrusion 21 gradually decreases from 1 μm to 100 nm, and is smaller than the height H1 of the relief protrusion 11.

[0054] Third embodiment

[0055] Another embodiment of the present invention provides an optical imaging texture structure, which is different from the first embodiment in that the ratio of the period range L1 of the relief protrusion 11 to the wavelength of the preset light source is greater than 10.

[0056] Specifically, when the ratio of the period L11 of the embossed protrusion 11 to the wavelength of the preset light source is greater than 10, it can be considered that the period L11 of the embossed protrusion 11 is much greater than the wavelength of the preset light source. At this time, the change in the wavelength of the preset light source has a very small effect on the diffraction angle, which is not enough to obviously distinguish visible light such as red, green and blue, and presents a silver effect, so that the micro-nano optical texture structure as a whole presents a slightly silvery platinum embossed effect.

[0057] Furthermore, the preset light source is natural light with a wavelength of 390nm-780nm.

[0058] The utility model also discloses a method for manufacturing the optical imaging texture structure as described in the first embodiment:

[0059] S1, forming a grayscale image with different grayscale levels according to the period range of the target image;

[0060] S2, assigning different periods to different gray levels in the photolithography template. The period of a high gray level is small, and the period of a low gray level is large, forming an overall photolithography file. The entire file contains two period ranges;

[0061] S3, photolithography the file to form ramps of different periods.

[0062] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. An optical imaging texture structure, comprising a micro-nano relief structure area (10) and a micro-nano laser structure area (20), wherein the relief protrusions (11) of the micro-nano relief structure area (10) and the laser protrusions (21) of the micro-nano laser structure area (20) are periodically arranged within a preset range, characterized in that: The micro-nano laser structure area (20) is arranged along the periphery of the micro-nano relief structure area (10), and the period (L11) of the relief protrusions (11) gradually decreases in a direction approaching the micro-nano laser structure area (20).

2. The optical imaging texture structure according to claim 1, characterized in that: The area ratio of the micro-nano relief structure area (10) to the micro-nano laser structure area (20) is in the range of 10:1 to 50:

1.

3. The optical imaging texture structure according to claim 1, characterized in that: The height (H1) of the embossed protrusion (11) is greater than the height (H2) of the laser protrusion (21).

4. The optical imaging texture structure according to claim 3, characterized in that: The height (H1) of the embossed protrusion (11) is 2 μm-5 μm, and the height (H2) of the laser protrusion (21) is 0.03 μm-2 μm.

5. The optical imaging texture structure according to claim 1, characterized in that: The period range (L2) of the laser protrusions (21) is 0.6 μm-5 μm.

6. The optical imaging texture structure according to claim 1, characterized in that: The ratio of the height (H2) of the laser protrusion (21) to the period range (L2) of the laser protrusion (21) is less than 0.

5.

7. The optical imaging texture structure according to claim 1, characterized in that: The ratio of the period range (L1) of the relief protrusion (11) to the wavelength of the preset light source is greater than 10.

8. The optical imaging texture structure according to claim 1, characterized in that: The period (L21) of the laser protrusion (21) is smaller than the period (L11) of the relief protrusion (11).

9. The optical imaging texture structure according to claim 1, characterized in that: The period range (L1) of the embossed protrusions (11) is 5 μm-150 μm.

10. The optical imaging texture structure according to claim 1, characterized in that: The cross section of the embossed protrusion (11) is a single-sided slope or a double-sided slope, and the cross section of the laser protrusion (21) is an arc or a triangle.

Images