Multidirectional microgroove structure superposition modulation structural color processing method

Abstract

The invention is applicable to the technical field of machining, and provides a multidirectional microgroove structure superposition modulation structural color processing method which comprises the following steps: determining a first distance between two adjacent first grooves to be processed according to first preset information; a plurality of first grooves arranged in parallel are machined in the surface of the workpiece according to the first spacing; according to second preset information, a second distance between two adjacent second grooves to be machined is determined; and a plurality of parallel second grooves are machined in the surface of the workpiece according to the second intervals, and the length direction of the first grooves is not parallel to the length direction of the second grooves. According to the invention, the depth of the color presented on the surface of the workpiece can be improved, and a plurality of different colors can be presented, so that the display of more color levels or complex color effects can be realized.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and more specifically, to a method for processing multi-directional micro-groove structures by superimposing and modulating structural colors. Background Art

[0002] Research on structural colors is driven by biological inspiration from nature. Studies have shown that these colors are usually formed by periodic structures at the micron or nanometer level, which reflect light of specific wavelengths to produce bright colors. For example, the multilayer interference structure in bird feathers and butterfly wings, as well as the quasi-crystalline structure in beetle shells, all provide references for bionic design. The structural color of the material surface is mainly achieved by controlling the micron or nanometer structure of the surface to produce specific optical effects, thereby achieving color regulation. At present, the preparation method of structural color on the surface of materials mainly relies on ultra-precision machining, and ultra-precision fly cutter cutting has become an effective means of preparing structural color surfaces due to its high precision and flexibility. However, in the process of machining structural color surfaces, there may be a problem of insufficient color depth. At the same time, the color presented by the structural color is single and cannot show more color levels or complex color effects. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a method for processing structural colors by superimposing a multi-directional micro-groove structure, aiming to solve the technical problems in the related art of insufficient color depth and a single color presented by the structural color during the process of processing the structural color surface.

[0004] To achieve the above purpose, the technical solution adopted in this application is:

[0005] The present application provides a multi-directional micro-groove structure superposition modulation structural color processing method, comprising:

[0006] Determine, according to the first preset information, a first spacing between two adjacent first grooves to be processed;

[0007] Processing a plurality of the first grooves arranged in parallel on the surface of the workpiece according to the first spacing;

[0008] Determine a second spacing between two adjacent second grooves to be processed according to the second preset information;

[0009] A plurality of parallel second grooves are machined on the surface of the workpiece according to the second spacing, and the length direction of the first groove is not parallel to the length direction of the second groove.

[0010] In a possible design, the multi-directional micro-groove structure superposition modulation structural color processing method further includes:

[0011] Determine, according to the third preset information, a third distance between two adjacent third grooves to be processed;

[0012] A plurality of third grooves arranged in parallel are machined on the surface of the workpiece according to the third spacing, the length direction of the first groove is not parallel to the length direction of the third groove, and the length direction of the second groove is not parallel to the length direction of the third groove.

[0013] In a possible design, the first preset information includes a first incident angle, a first diffraction angle, and a wavelength of the first light;

[0014] The second preset information includes a second incident angle, a second diffraction angle, and a wavelength of the second light.

[0015] In a possible design, the third preset information includes a third incident angle, a third diffraction angle, and a wavelength of a third light.

[0016] In a possible design, the depth of the first groove, the depth of the second groove and the depth of the third groove are all equal;

[0017] Alternatively, at least one of the depth of the first groove, the depth of the second groove, and the depth of the third groove is different from the depths of the other two.

[0018] In a possible design, the first preset information, the second preset information and the third preset information are the same;

[0019] Or, the first preset information, the second preset information and the third preset information are all different.

[0020] In a possible design, an angle formed between a length direction of the first groove and a length direction of the second groove is 30°, 45°, 60°, 90° or 120°.

[0021] In a possible design, the angle formed by the length direction of the second groove and the length direction of the third groove is 120°.

[0022] In a possible design, the first groove is a linear groove, the second groove is a linear groove, and the third groove is a linear groove.

[0023] In a possible design, the cross section of the first groove is V-shaped or arc-shaped, the cross section of the second groove is V-shaped or arc-shaped, and the cross section of the third groove is V-shaped or arc-shaped.

[0024] The beneficial effects of the multi-directional micro-groove structure superposition modulation structural color processing method provided in the present application are mainly: a plurality of parallel first grooves are processed on the surface of the workpiece, and a plurality of parallel second grooves are staggered with the first grooves, which is beneficial to increase the depth of the color presented on the surface of the workpiece, and the control of the first spacing and the second spacing can present a variety of different colors, which is conducive to achieving more color levels or complex color effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is a schematic diagram of determining the spacing between two adjacent grooves in an embodiment of the present application;

[0027] Figure 2 It is a flow chart of a multi-directional micro-groove structure superposition modulation structural color processing method provided in an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the first tool processing the surface of the workpiece in two-direction processing in an embodiment of the present application;

[0029] Figure 4 It is a schematic diagram of the second tool processing the surface of the workpiece in two-direction processing in the embodiment of the present application;

[0030] Figure 5 It is another schematic diagram of the second tool processing the surface of the workpiece in two-direction processing in the embodiment of the present application;

[0031] Figure 6 is another schematic diagram of the second tool processing the surface of the workpiece in two-direction processing in the embodiment of the present application;

[0032] Figure 7 is another schematic diagram of the second tool processing the surface of the workpiece in two-direction processing in the embodiment of the present application;

[0033] Figure 8 It is another flow chart of the multi-directional micro-groove structure superposition modulation structural color processing method provided in the embodiment of the present application;

[0034] Fig. 9 is a schematic diagram of the first tool processing the surface of the workpiece in three-direction processing in an embodiment of the present application;

[0035] Fig.10It is a schematic diagram of the second tool processing the surface of the workpiece in three-direction processing in the embodiment of the present application;

[0036] Fig.11 is a schematic diagram of the third tool processing the surface of the workpiece in three-direction processing in the embodiment of the present application;

[0037] Fig.12 This is a state diagram after the first groove, the second groove and the third groove are added to the workpiece in the embodiment of the present application;

[0038] Fig.13 is a schematic diagram of a first groove machined by a tapered milling cutter in an embodiment of the present application;

[0039] Fig.14 is a schematic diagram of the second groove being processed by a ball-end milling cutter in an embodiment of the present application;

[0040] Fig.15 is another schematic diagram of the first groove being processed by a tapered milling cutter in the embodiment of the present application;

[0041] Fig.16 It is a schematic diagram of the first groove being processed by a conical milling cutter in an embodiment of the present application.

[0042] Description of main reference numerals:

[0043] 100. workpiece; 101. groove; 102. turntable; 103. ball end milling cutter; 104. conical milling cutter; 105. first tool; 106. second tool; 107. third tool; 108. first groove; 109. second groove. DETAILED DESCRIPTION

[0044] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the related technology, the preparation method of structural color on the surface of materials mainly relies on ultra-precision processing, and ultra-precision fly-knife cutting has become an effective means of preparing structural color surfaces due to its high precision and flexibility. However, the structural color surface obtained by single-direction fly-cutting may have poor effect and lighter color; at the same time, the structural color surface obtained by single-direction fly-cutting has a single effect and a single color, which is difficult to process for certain specific colors and cannot show more color levels or complex color effects.

[0049] To this end, the present invention provides a method for processing multi-directional micro-groove structures by superimposing and modulating structural colors to solve the problems in the related art.

[0050] Combination Figures 2 to 7 As shown, in one or more embodiments, the present application provides a method for processing structural colors by superimposing a multi-directional microgroove structure, which can realize the superposition of microgroove structures in multiple directions to achieve the modulation of structural colors. The structural color processing method includes the following steps:

[0051] S101 . Determine a first distance d1 between two adjacent first grooves 108 to be processed according to first preset information.

[0052] S102 , processing a plurality of first grooves 108 arranged in parallel on the surface of the workpiece 100 according to the first spacing.

[0053] S103 . Determine, according to the second preset information, a second distance d2 between two adjacent second grooves 109 to be processed.

[0054] S104 , processing a plurality of second grooves 109 arranged in parallel on the surface of the workpiece 100 according to the second spacing, wherein the length direction of the first groove 108 is not parallel to the length direction of the second groove 109 .

[0055] The multi-directional micro-groove structure superposition modulation structural color processing method provided in the embodiment of the present application processes a plurality of parallel first grooves 108 on the surface of the workpiece 100, and a plurality of parallel second grooves 109 intersecting with the first grooves 108, which is beneficial to improving the depth of the color presented on the surface of the workpiece 100, and the control of the first spacing and the second spacing can present a variety of different colors, which is beneficial to achieve more color levels or complex color effects.

[0056] In some embodiments, the workpiece 100 can be mounted on a high-precision turntable 102 with freely adjustable angles, so that the workpiece 100 can be driven to rotate by the rotation of the turntable 102, and the surface of the workpiece 100 is a plane. Among the plurality of parallel first grooves 108, the spacing between two adjacent first grooves 108 is the first spacing, that is, the plurality of first grooves 108 are arranged at equal intervals; among the plurality of parallel second grooves 109, the spacing between two adjacent second grooves 109 is the second spacing, that is, the plurality of second grooves 109 are arranged at equal intervals. The spacing between two adjacent first grooves 108 can be the distance between the midpoints of the width direction of the two first grooves 108; the arrangement direction of the plurality of first grooves 108 processed is perpendicular to the length direction of the first grooves 108. The spacing between adjacent second grooves 109 can be the distance between the midpoints of the width direction of the two second grooves 109; the arrangement direction of the plurality of second grooves 109 processed is perpendicular to the length direction of the second grooves 109. The first groove 108 can be formed by a cutting process or a laser processing process. When the first groove 108 is processed by a cutting process, the first tool 105 can be used to cut the first groove 108 on the surface of the workpiece 100. Figure 3 As shown, the first tool 105 can be used to cut a plurality of first grooves 108 along the cutting path. The second groove 109 can be formed by a cutting process or by a laser processing process. When the second groove 109 is processed by a cutting process, the second tool 106 can be used to cut the second groove 109 on the surface of the workpiece 100. This application does not make specific restrictions. Figures 4 to 7 As shown, a plurality of second grooves 109 can be cut along the cutting path by using the second tool 106. The material of the workpiece 100 can be metal, plastic, ceramic or stone.

[0057] See also Figure 1As shown, in the embodiment of the present application, the structural color of the surface of the workpiece 100 corresponds to the wavelength of the diffracted light, and the wavelength of the diffracted light depends on the diffracted light angle (diffraction angle) and the spacing of the grooves 101, wherein the diffracted light angle depends on the incident angle of the illumination light and the observation angle of the observer, and the diffraction angle is also the observation angle of the observer, and the corresponding structural color can be seen from the observation angle. According to the grating equation:

[0058]

[0059] Where m represents the diffraction order, λ represents the wavelength of light, and θ i represents the angle between the incident light and the normal line of the surface of the workpiece 100, θ v The angle between the diffracted light and the normal line of the surface of the workpiece 100 is shown; when the incident angle of the light is θ i and the diffraction angle θ v When m is a given constant value, the corresponding groove spacing d can be calculated by the wavelength λ of the light. For example, when m is 1, when the incident angle θ of the given light is i and the diffraction angle θ v , and after the wave of light of the desired color enters λ, the spacing d of the corresponding grooves 101 can be calculated. Therefore, in the embodiment of the present application, the first preset information includes the first incident angle, the first diffraction angle and the wavelength of the first light; the second preset information includes the second incident angle, the second diffraction angle and the wavelength of the second light, so that the workpiece 100 can present the desired color, that is, the color corresponding to the wavelength of the first light and the wavelength of the second light. According to the first preset information and the grating equation, the spacing of the first groove 108 can be calculated, and according to the second preset information and the grating equation, the spacing of the second groove 109 can be calculated.

[0060] In some embodiments, in step S104, the method for machining a plurality of second grooves 109 arranged in parallel on the surface of the workpiece 100 according to the second spacing includes: S1041, rotating the workpiece 100 by a first set angle relative to the cutter head where the second tool 106 is located; S1042, machining a plurality of second grooves 109 arranged in parallel on the surface of the workpiece 100 using the second tool 106. The first tool 105 and the second tool 106 are mounted on the cutter head; when it is necessary to make the length direction of the first groove 108 non-parallel to the length direction of the second groove 109, the cutter head or the workpiece 100 can be rotated to achieve the non-parallelism between the length direction of the machined first groove 108 and the length direction of the second groove 109.

[0061] In some embodiments, the angle formed by the length direction of the first groove 108 and the length direction of the second groove 109 is 30°, 45°, 60° or 90°, so that the superposition of the micro-groove structure is achieved through the composite processing in two directions, thereby realizing the modulation of the structural color to achieve the overlap of the same color or the overlap of different colors. The first set angle is 30°, 45°, 60°, 90° or 120°. When the first preset information and the second preset information are the same, the first spacing d1 and the second spacing d2 are equal, and when the first spacing d1 and the second spacing d2 are the same, the colors processed twice are the same, which can overlap the colors to achieve the purpose of brighter processing colors. When the first preset information and the second preset information are different, the first spacing d1 and the second spacing d2 can be made unequal, and when the first spacing d1 and the second spacing d2 are different, the colors processed twice are different, and the color compound can be achieved, and the presentation of certain specific colors can be achieved through different ratios. When the first spacing d1 and the second spacing d2 are the same, the first tool 105 and the second tool 106 may be the same type of tool or different types of tools; and when the first spacing d1 and the second spacing d2 are the same, the depth of the first groove 108 and the depth of the second groove 109 may be set to be equal or unequal; for example, the first spacing d1 and the second spacing d2 are the same, the first tool 105 and the second tool 106 are different, and the depth of the first groove 108 and the depth of the second groove 109 are the same; for another example, the first spacing d1 and the second spacing d2 are the same, the first tool 105 and the second tool 106 are different, and the depth of the first groove 108 and the depth of the second groove 109 are different.

[0062] See also Figure 4 As shown, after the first groove 108 is cut, the turntable 102 is rotated 30°, and the second tool 106 is used to cut a plurality of second grooves 109 that form an angle of 30° with the first groove 108 .

[0063] See also Figure 5 As shown, after the first groove 108 is cut out, the turntable 102 is rotated 45°, and a second tool 106 is used to cut out a plurality of second grooves 109 that form an angle of 45° with the first groove 108 .

[0064] See also Figure 6 As shown, after the first groove 108 is cut, the turntable 102 is rotated 60°, and the second tool 106 is used to cut a plurality of second grooves 109 that form an angle of 60° with the first groove 108 .

[0065] See also Figure 7As shown, after the first groove 108 is cut, the turntable 102 is rotated 90°, and the second tool 106 is used to cut a plurality of second grooves 109 that form an angle of 90° with the first groove 108 .

[0066] It should be noted that the depth of the first groove 108 and the second groove 109 and the flatness of the groove wall surface will affect the saturation of the structural color. The deeper the depth, the better the diffraction effect. Therefore, by controlling the depth of the first groove 108 and the depth of the second groove 109, the saturation of the desired structural color can be controlled. For two identical lights, the spacing between the grooves corresponding to the two lights is the same, but the color saturation can be different by controlling the depth of the groove and the flatness of the groove wall, such as showing dark blue, cyan blue, light blue, purple blue, etc.

[0067] In some embodiments, the first tool 105 is a ball end mill 103 or a tapered mill 104, and the second tool 106 is a ball end mill 103 or a tapered mill 104. When the first tool 105 is a ball end mill 103, the cross-section of the first groove 108 may be arc-shaped; when the first tool 105 is a tapered mill 104, the cross-section of the first groove 108 may be V-shaped. When the second tool 106 is a ball end mill 103, the cross-section of the second groove 109 may be arc-shaped; when the second tool 106 is a tapered mill 104, the cross-section of the second groove 109 may be V-shaped; by controlling the shapes of the cross-sections of the first groove 108 and the second groove 109, the saturation of the same structural color can be adjusted.

[0068] Combination Figures 8 to 11 As shown, in some embodiments, after step S104, the multi-directional micro-groove structure superposition modulation structural color processing method further includes the following steps:

[0069] S105, determining a third distance between two adjacent third grooves to be processed according to third preset information;

[0070] S106, a plurality of third grooves arranged in parallel are processed on the surface of the workpiece 100 according to the third spacing, the length direction of the first groove 108 is not parallel to the length direction of the third groove, and the length direction of the second groove 109 is not parallel to the length direction of the third groove. In this way, on the basis of the superposition of structural colors in two directions, the superposition of structural colors in one direction is added, that is, the superposition of structural colors in three directions can realize the compounding of more colors, so as to realize fine color adjustment and realize accurate processing of specific colors.

[0071] In some embodiments, among the plurality of third grooves arranged in parallel, the spacing between two adjacent third grooves is the third spacing, that is, the plurality of third grooves are arranged at equal spacings. The spacing between two adjacent third grooves can be the distance between the midpoints of the width direction of the two third grooves; the arrangement direction of the plurality of processed third grooves is perpendicular to the length direction of the third grooves. The processing method for the third groove can be formed by a cutting process or by a laser processing process. When the third groove is processed by a cutting process, the third tool 107 can be used to cut the third groove on the surface of the workpiece 100.

[0072] In some embodiments, the third preset information includes a third incident angle, a third diffraction angle, and a wavelength of the third light. Thus, the spacing of the third grooves can be calculated based on the third preset information and the grating equation, so that the workpiece 100 can present a color corresponding to the wavelength of the third light.

[0073] In some embodiments, in step S106, the method for machining a plurality of third grooves arranged in parallel on the surface of the workpiece 100 according to the third spacing includes: S1061, rotating the workpiece 100 by a second set angle relative to the cutter head where the third tool 107 is located; S1062, machining a plurality of third grooves arranged in parallel on the surface of the workpiece 100 using the third tool 107. The third tool 107 is mounted on the cutter head; when it is necessary to make the length direction of the first groove 108 non-parallel to the length direction of the third groove, and the length direction of the second groove 109 non-parallel to the length direction of the third groove, this can be achieved by rotating the cutter head or rotating the workpiece 100.

[0074] In some embodiments, the third tool 107 is a ball end milling cutter 103 or a tapered milling cutter 104. When the third tool 107 is a ball end milling cutter 103, the cross-section of the third groove may be arc-shaped; when the third tool 107 is a tapered milling cutter 104, the cross-section of the third groove may be V-shaped. By controlling the shape of the cross-section of the third groove, the saturation of the same structural color can be adjusted.

[0075] In some embodiments, the angle formed between the length direction of the second groove 109 and the length direction of the first groove 108 is 120°; the angle formed between the length direction of the second groove 109 and the length direction of the third groove is 120°. Exemplarily, before processing the second groove 109, the workpiece 100 is first rotated 120° clockwise, that is, the first setting angle is 120°, and then a plurality of second grooves 109 are processed, so that the angle formed between the length direction of the second groove 109 and the length direction of the first groove 108 is 120°. After the second groove 109 is processed, before processing the third groove, the workpiece 100 is rotated 120° clockwise again, that is, the second setting angle is 120°, and then a plurality of third grooves are processed, so that the angle formed between the length direction of the third groove and the length direction of the second groove 109 is 120°. In this way, the two rotations can realize the cross setting between the first groove 108, the second groove 109 and the third groove, thereby realizing the superposition of structural colors in three directions.

[0076] Fig. 9 is a schematic diagram of a first tool 105 cutting out a plurality of first grooves 108 in an implementation manner of superimposing structural colors in three directions; Fig.10 is a schematic diagram of cutting out a plurality of first grooves 108, rotating the turntable 120° clockwise, and then cutting out a plurality of second grooves 109 using the second tool 106; Fig.11 It is a schematic diagram of cutting out a plurality of three grooves by using a third tool 107 after the second groove 109 is cut out and then the turntable is rotated 120° clockwise; Fig.12 is to use Figure 8 The state diagram after the workpiece is cut by the process shown is the superposition of the structural colors in three directions.

[0077] In some embodiments, when the first preset information, the second preset information and the third preset information are the same, the first spacing d1, the second spacing d2 and the third spacing d3 are equal, so that the same color can be processed, and the color can be overlapped to achieve the purpose of processing more vivid colors. When the first preset information, the second preset information and the third preset information are all different, the first spacing d1, the second spacing d2 and the third spacing d3 can be made unequal, so as to obtain three different structural colors; in this way, when the first light is red light, the second light is green light, and the third light is blue light, after the grooves of the corresponding spacings of the red light wavelength, the green light wavelength and the blue light wavelength are processed respectively by composite processing in three directions, the color matching of the corresponding proportions of each color can be achieved to form an effect similar to RGB color matching.

[0078] In some embodiments, the depths of the multiple first grooves 108 are all equal, so that the structural color can show a more uniform and consistent color effect. The depths of the multiple second grooves 109 are all equal, so that the structural color can show a more uniform and consistent color effect. The depths of the multiple second grooves 109 are all equal, so that the structural color can show a more uniform and consistent color effect. It should be noted that in some other possible implementations, in the multiple first grooves 108, the depth of the first grooves 108 can increase successively along the arrangement direction, so that a gradient effect can be presented; similarly, in the multiple second grooves 109, the depth of the third groove can increase successively along the arrangement direction, so that a gradient effect can be presented; in the multiple third grooves, the depth of the third groove can increase successively along the arrangement direction, so that a gradient effect can be presented.

[0079] In some embodiments, the depth of the first groove 108, the depth of the second groove 109 and the depth of the third groove are all equal, so that the composite structural color can show a more uniform and consistent color effect. Exemplarily, when the first spacing d1, the second spacing d2 and the third spacing d3 are equal, the depth of the first groove 108, the depth of the second groove 109 and the depth of the third groove are all equal, the same color of light will be processed, and the color can be made fuller and brighter by superposition of structural colors. It should be noted that since the structural color mainly comes from the morphological quality of the grooves on the surface of the workpiece 100, the better the groove quality, the better the diffraction effect.

[0080] Combination Fig.13 and Fig.14 As shown, when the first spacing d1, the second spacing d2 and the third spacing d3 are not equal, the depth h1 of the first groove 108, the depth h2 of the second groove 109 and the depth of the third groove are equal, and the first tool 105, the second tool 106 and the third tool 107 are different tools, the grooves will affect the diffraction efficiency and change the saturation of the light, so that the color concentration corresponding to different lights can be changed, achieving a modulation effect similar to RGB.

[0081] In other embodiments, at least one of the depth of the first groove 108, the depth of the second groove 109, and the depth of the third groove is different from the depths of the other two, so that the color can be adjusted as needed. Exemplarily, when the first spacing d1, the second spacing d2, and the third spacing d3 are equal, the depth of the first groove 108, the depth of the second groove 109, and the depth of the third groove are all different. For example, the depth of the first groove 108, the depth of the second groove 109, and the depth of the third groove gradually increase, so that a gradient color or color change can be visually presented. Fig.15 and Fig.16As shown, when the first spacing d1, the second spacing d2 and the third spacing d3 are not equal, the depth h1 of the first groove 108, the depth h2 of the second groove 109 and the depth of the third groove are all different, and the first tool 105, the second tool 106 and the third tool 107 are different tools, the color concentration corresponding to different lights can also be changed to achieve a modulation effect similar to RGB. It should be noted that in Figures 13 to 15 Medium θ b It represents the angle between the line between the bottom of the groove cross section and the top edge of the groove and the surface of the workpiece. Due to the different types of tools, the shapes of the cross sections of the grooves (first groove, second groove, third groove) are different, and θ b The urine and stool are different.

[0082] In some embodiments, the first groove 108 is a linear groove, the second groove 109 is a linear groove, and the third groove is a linear groove, which is convenient for processing.

[0083] In some embodiments, the depth of the first groove 108 can be 1 to 20 microns, for example, 1 micron, 5 microns, 6 microns, 8 microns, 10 microns, 15 microns or 20 microns. The depth of the second groove 109 can be 1 to 20 microns, for example, 1 micron, 5 microns, 6 microns, 8 microns, 10 microns, 15 microns or 20 microns. The depth of the third groove can be 1 to 20 microns, for example, 1 micron, 5 microns, 6 microns, 8 microns, 10 microns, 15 microns or 20 microns.

[0084] In summary, the structural color processing method based on ultra-precision fly cutting in the embodiment of the present application obtains a surface with structural color through multi-angle composite processing, so that the surface of the workpiece 100 has bright colors or the same color in multiple directions, so that the structural color can be better applied in display devices, anti-counterfeiting devices, and functional decorations. It should be noted that in the way of superimposing structural colors in three directions, condition 1: the first spacing d1, the second spacing d2 and the third spacing d3 are not equal or are equal, condition 2: the depth of the first groove 108, the depth of the second groove 109 and the depth of the third groove are not the same or are the same, condition 3: the first tool 105, the second tool 106 and the third tool 107 are different tools or are the same tool. The three conditions can be combined separately to form different color modulation effects, which will not be described in detail in this application.

[0085] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for processing multi-directional micro-groove structures by superimposing and modulating structural colors, characterized in that: include: Determine, according to the first preset information, a first spacing between two adjacent first grooves to be processed; Processing a plurality of the first grooves arranged in parallel on the surface of the workpiece according to the first spacing; Determine a second spacing between two adjacent second grooves to be processed according to the second preset information; A plurality of parallel second grooves are machined on the surface of the workpiece according to the second spacing, and the length direction of the first groove is not parallel to the length direction of the second groove.

2. The multi-directional micro-groove structure superposition modulation structural color processing method according to claim 1, characterized in that: Also includes: Determine, according to the third preset information, a third distance between two adjacent third grooves to be processed; A plurality of third grooves arranged in parallel are machined on the surface of the workpiece according to the third spacing, the length direction of the first groove is not parallel to the length direction of the third groove, and the length direction of the second groove is not parallel to the length direction of the third groove.

3. The multi-directional micro-groove structure superposition modulation structural color processing method according to claim 1 or 2, characterized in that: The first preset information includes a first incident angle, a first diffraction angle, and a wavelength of the first light; The second preset information includes a second incident angle, a second diffraction angle, and a wavelength of the second light.

4. The multi-directional micro-groove structure superposition modulation structural color processing method according to claim 2, characterized in that: The third preset information includes a third incident angle, a third diffraction angle, and a wavelength of a third light.

5. The multi-directional micro-groove structure superposition modulation structural color processing method according to claim 2, characterized in that: The depth of the first groove, the depth of the second groove and the depth of the third groove are all equal; Alternatively, at least one of the depth of the first groove, the depth of the second groove, and the depth of the third groove is different from the depths of the other two.

6. The multi-directional micro-groove structure superposition modulation structural color processing method according to claim 2, characterized in that: The first preset information, the second preset information and the third preset information are the same; Or, the first preset information, the second preset information and the third preset information are all different.

7. The method for processing multi-directional micro-groove structures by superimposing and modulating structural colors as claimed in claim 1 or 2, characterized in that: An angle formed between a length direction of the first groove and a length direction of the second groove is 30°, 45°, 60°, 90° or 120°.

8. The method for processing multi-directional micro-groove structures by superimposing and modulating structural colors as claimed in claim 2, characterized in that: The angle formed by the length direction of the second groove and the length direction of the third groove is 120°.

9. The method for processing multi-directional micro-groove structures by superimposing and modulating structural colors as claimed in claim 2, characterized in that: The first groove is a linear groove, the second groove is a linear groove, and the third groove is a linear groove.

10. The method for processing multi-directional micro-groove structures by superimposing and modulating structural colors as claimed in claim 2, characterized in that: The cross section of the first groove is V-shaped or arc-shaped, the cross section of the second groove is V-shaped or arc-shaped, and the cross section of the third groove is V-shaped or arc-shaped.

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