Lens module and wearable device

Abstract

The utility model provides a lens module and wearable equipment. A lens structure of the lens module comprises a first surface and a second surface which are oppositely arranged; the self-cleaning assembly is arranged on at least one of the first surface and the second surface, and the self-cleaning assembly comprises a curved-surface convex structure and an inclined-surface convex structure of a micron or nanometer size. On the basis, the curved-surface convex structures and the inclined-surface convex structures can form a micro-nano hydrophobic layer on the surface of the lens structure, so that the lens module has a self-cleaning function; meanwhile, the curved-surface convex structures and the inclined-surface convex structures which are different in structure can generate different effects on light rays incident on the lens structure, so that the lens module has better optical performance. The lens module provided by the utility model not only has self-cleaning performance, but also has better optical performance.

Description

Technical Field

[0001] This application relates to the technical field of optical devices, and particularly to a lens module and a wearable device. Background Art

[0002] In today's society, glasses have become a necessity for most people, and glasses provide convenience for people in protecting eyesight, improving vision, increasing entertainment, etc. For example, virtual reality (VR), augmented reality (AR), and extended reality (XR) glasses worn by users can combine virtual digital information with the real world.

[0003] Existing glasses such as VR / AR / XR glasses will cause many inconveniences due to environmental impacts during use. For example, foreign objects attached to the glasses will affect the user's visual experience, and in severe cases, it will even affect personal safety such as traffic. Summary of the Utility Model

[0004] The purpose of this application is to provide a lens module and a wearable device. The lens module and the wearable device have the functions of preventing sweat, rain, oil, and dust, and the lens module and the wearable device can adapt to different usage environments.

[0005] This application is implemented as follows. In the first aspect, this application provides a lens module, including:

[0006] A lens structure including a first surface and a second surface arranged opposite to each other; and

[0007] A self-cleaning component disposed on at least one of the first surface and the second surface, the self-cleaning component including a curved convex structure and an inclined convex structure with micron or nanometer dimensions.

[0008] Optionally, the curved convex structure is a hemispherical structure, and the inclined convex structure is a triangular pyramid structure.

[0009] Optionally, in the direction from the first surface to the second surface, the heights of the curved convex structure and the inclined convex structure are equal.

[0010] Optionally, the ratio of the maximum cross-sectional dimension of the curved convex structure to the maximum cross-sectional dimension of the inclined convex structure is greater than or equal to 1 and less than or equal to 6.

[0011] Optionally, the self-cleaning component includes a plurality of self-cleaning units, and each self-cleaning unit includes one of the curved convex structures and one of the inclined convex structures; wherein, some of the self-cleaning units are sequentially connected; or, all of the self-cleaning units are spaced apart from each other.

[0012] Optionally, the self-cleaning component includes a plurality of self-cleaning groups, and each self-cleaning group includes a plurality of the self-cleaning units; wherein, the curved convex structures in two adjacent self-cleaning groups are at least partially staggered, and the inclined convex structures in two adjacent self-cleaning groups are at least partially staggered.

[0013] Optionally, the self-cleaning component includes a plurality of self-cleaning layers stacked on top of each other, and each self-cleaning layer includes a plurality of the self-cleaning units.

[0014] Optionally, the lens structure includes a polarizer structure.

[0015] In a second aspect, the present application further provides a wearable device, including:

[0016] The lens module as described above; and

[0017] A frame module, connected to the lens module and carrying the lens module.

[0018] Optionally, the wearable device further includes:

[0019] A projection optical machine, including a display and a lens, the display is used to emit an optical signal towards the lens, the lens is used to modulate the optical signal, and the lens module is used to receive the optical signal;

[0020] Wherein, the display includes an OLED screen structure, an LCD screen structure or a Micro-LED screen structure.

[0021] Based on the above technical solution, the self-cleaning component of the lens module of the present application includes curved convex structures and inclined convex structures with micron or nanometer sizes disposed on at least one of the first surface and the second surface of the lens structure. The curved convex structures and the inclined convex structures are micro-nano structures and can form a micro-nano hydrophobic layer on the surface of the lens structure, so that the lens module of the present application has a self-cleaning function, and foreign matters such as rainwater, sweat, and dust are not easily adhered to the lens structure to affect the performance of the lens structure. At the same time, the curved convex structures can better receive the light incident on the lens structure, and the inclined convex structures can reduce the total reflection of the light incident on the lens structure to improve the light energy utilization rate. Therefore, the present application provides curved convex structures and inclined convex structures with different structures, which can produce different effects on the light incident on the lens structure, so that the lens module of the present application has better optical performance. Based on this, the lens module of the present application has both self-cleaning performance and better optical performance under the action of the self-cleaning component and the lens structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals represent the same parts in the following description.

[0024] Figure 1 The first schematic structural diagram of the lens module provided by the embodiment of the present application;

[0025] Figure 2 The first schematic structural diagram of the self-cleaning component of the lens module provided by the embodiment of the present application;

[0026] Figure 3 The first schematic distribution diagram of the self-cleaning component of the lens module provided by the embodiment of the present application;

[0027] Figure 4 The second schematic distribution diagram of the self-cleaning component of the lens module provided by the embodiment of the present application;

[0028] Figure 5 The third schematic distribution diagram of the self-cleaning component of the lens module provided by the embodiment of the present application;

[0029] Figure 6 The second schematic structural diagram of the self-cleaning component of the lens module provided by the embodiment of the present application;

[0030] Figure 7 The second structural schematic diagram of the lens module provided by the embodiment of the present application;

[0031] Figure 8 The first structural schematic diagram of the wearable device provided by the embodiment of the present application;

[0032] Figure 9 A cross-sectional structural schematic diagram of the wearable device provided by the embodiment of the present application;

[0033] Figure 10 Another cross-sectional structural schematic diagram of the wearable device provided by the embodiment of the present application;

[0034] Figure 11 The second structural schematic diagram of the wearable device provided by the embodiment of the present application.

[0035] The reference numerals are represented as:

[0036] 10. Wearable device; 100. Lens module; 200. Frame module; 300. Projection optical machine; 110. Lens structure; 120. Self-cleaning component; 210. Frame; 310. Display; 320. Lens; 111. First surface; 112. Second surface; 113. First carrier layer; 114. Polarizing layer; 115. Second carrier layer; 121. Curved convex structure; 122. Inclined convex structure; 1210. Self-cleaning unit; 1220. Self-cleaning group; 1230. Self-cleaning layer; H1. First direction. Detailed implementation manners

[0037] Next, the technical solutions in the present application will be clearly and completely described in conjunction with the accompanying drawings Figure 1 to the accompanying drawings Figure 11 and embodiments in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0038] Referring to "embodiments" herein means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0039] The following will be described in detail with reference to specific embodiments. It should be noted that the embodiments of the present application can be presented in various forms, and some examples will be described below.

[0040] In view of the problem in the related art that the lens of glasses is easily adsorbed by foreign matters such as rainwater, sweat, and dust, resulting in a blurred and unclear lens surface, the present application provides a new type of three-proof self-cleaning lens module, which has self-cleaning ability, can keep the lens clean and transparent for a long time, has dust resistance and hydrophobic function for rainwater or sweat, so that foreign matters such as rainwater, sweat, and dust are not easily adhered to the lens and affect the function of the lens.

[0041] Specifically, please refer to Figure 1 , Figure 1 which is the first structural schematic diagram of the lens module 100 provided by the embodiment of the present application. The lens module 100 of the embodiment of the present application includes a lens structure 110 and a self-cleaning component 120.

[0042] The lens structure 110 includes a first surface 111 and a second surface 112 which are oppositely arranged, and the first surface 111 and the second surface 112 are stacked along a first direction H1, and the first direction H1 is the thickness direction of the lens structure 110. The self-cleaning component 120 is disposed on at least one of the first surface 111 and the second surface 112 of the lens structure 110. For example, the self-cleaning component 120 is disposed on the first surface 111 or the second surface 112, or is disposed on both the first surface 111 and the second surface 112 at the same time. Among them, the self-cleaning component 120 includes a curved convex structure 121 with a micron or nanometer size and an inclined convex structure 122 with a micron or nanometer size.

[0043] It can be understood that the curved convex structure 121 and the inclined convex structure 122 are micro-nano structures. A micro-nano structure refers to a functional structure with a feature size in the micron or nanometer scale and arranged in a specific manner. The self-cleaning component 120 of the present application includes a plurality of curved convex structures 121 with a micron or nanometer size and a plurality of inclined convex structures 122 with a micron or nanometer size. Among them, the curved convex structure 121 and the inclined convex structure 122 with a micron or nanometer size cannot be perceived by the human eye. Even when the curved convex structure 121 and the inclined convex structure 122 are disposed on the lens structure 110 and protrude from at least one of the first surface 111 and the second surface 112, the curved convex structure 121 and the inclined convex structure 122 will not affect the line of sight of the human eye.

[0044] It can be understood that the surface of the curved convex structure 121 protruding from the lens structure 110 is a curved surface structure, which can receive light in different directions and has a certain focusing effect on the light, and the curved convex structure 121 can receive light better. Among them, in some embodiments, the curved convex structure 121 is a hemispherical structure, and the semi-circular curved surface of the hemispherical structure can receive light in different directions more uniformly, and can further improve the optical performance of the lens module 100 of the present application.

[0045] It can be understood that at least part of the surface of the inclined surface convex structure 122 protrudes from the lens structure 110 and is an inclined plane structure, and this inclined plane structure can reduce the total reflection of light and improve the utilization rate of light energy. Among them, in some embodiments, the inclined surface convex structure 122 is a triangular pyramid structure. Further, the inclined surface convex structure 122 is a regular triangular pyramid structure. It should be noted that in this application, the curved surface convex structure 121 can be set as a hemispherical structure, or the inclined surface convex structure 122 can be set as a triangular prism structure, or the curved surface convex structure 121 can be set as a hemispherical structure and the inclined surface convex structure 122 can be set as a triangular prism structure at the same time.

[0046] It can be understood that in some embodiments, multiple curved surface convex structures 121 and multiple inclined surface convex structures 122 can be randomly distributed on at least one of the first surface 111 and the second surface 112 of the lens structure 110. In other embodiments, multiple curved surface convex structures 121 and multiple inclined surface convex structures 122 can also be distributed on at least one of the first surface 111 and the second surface 112 of the lens structure 110 according to a preset rule. For example, multiple curved surface convex structures 121 and multiple inclined surface convex structures 122 are periodically distributed on at least one of the first surface 111 and the second surface 112 of the lens structure 110 according to the rule that one curved surface convex structure 121 is adjacent to one inclined surface convex structure 122.

[0047] It can be understood that when the curved surface convex structure 121 and the inclined surface convex structure 122 of the self-cleaning component 120 are arranged on at least one of the first surface 111 and the second surface 112 of the lens structure 110, the curved surface convex structure 121 and the inclined surface convex structure 122 make the surface of the lens structure 110 form protrusions and depressions, and the gaps between these protrusions and depressions are filled with air, which can form an extremely thin air layer with a nanometer thickness on the lens structure 110. Thus, the self-cleaning component 120 can form a micro-nano hydrophobic layer on the lens structure 110. Foreign objects such as dust, water droplets, and grease can only contact a few protruding points on the surface of the lens structure 110. Water droplets, grease, etc. can form spherical objects due to their own surface tension. These spherical objects can adsorb dust during the rolling process and finally roll away from the lens structure 110, thereby achieving the self-cleaning effect of the lens structure 110. The principle of self-cleaning realized by the lens module 100 formed by the lens structure 110 and the self-cleaning component 120 in this application is similar to the lotus effect. The so-called lotus effect refers to the self-cleaning phenomenon generated by the synergistic effect between the papillae of the micro-nano composite structure on the lotus leaf surface and the surface hydrophobic wax.

[0048] The self-cleaning component 120 of the lens module 100 according to the embodiment of the present application includes a curved convex structure 121 and an inclined convex structure 122 provided on at least one of the first surface 111 and the second surface 112 of the lens structure 110. The curved convex structure 121 and the inclined convex structure 122 are micro-nano structures and can form a micro-nano hydrophobic layer on the surface of the lens structure 110, so that the lens module 100 of the present application has a self-cleaning function, and rainwater, sweat, and dust are not easily adhered to the lens structure 110 to affect the performance of the lens structure 110. At the same time, the curved convex structure 121 can better receive the light incident on the lens structure 110, and the inclined convex structure 122 can reduce the total reflection of the light incident on the lens structure 110 and improve the light energy utilization rate. Therefore, the curved convex structure 121 and the inclined convex structure 122 with different structures provided in the present application can produce different effects on the light incident on the lens structure 110, so that the lens module 100 of the present application has better optical performance. Based on this, the lens module 100 of the present application has both self-cleaning performance and better optical performance under the action of the self-cleaning component 120 and the lens structure 110.

[0049] Among them, please combine Figure 1 and please refer to Figure 2 , Figure 2 FIG. 10 is a schematic diagram of the first structure of the self-cleaning component 120 of the lens module 100 provided by the embodiment of the present application. In some embodiments, in the first direction H1 from the first surface 111 to the second surface 112, the heights of the curved convex structure 121 and the inclined convex structure 122 of the self-cleaning component 120 are equal. That is to say, the first maximum distance between the surface of the lens structure 110 where the curved convex structure 121 and the inclined convex structure 122 are provided and the curved convex structure 121 is equal to the second maximum distance between the surface and the inclined convex structure 122. For example, the heights H1 of the curved convex structure 121 and the inclined convex structure 122 in the embodiment of the present application are both about 0.0656 nanometers. At this time, the self-cleaning component 120 can form a relatively flat air layer and a micro-nano hydrophobic layer on the surface of the lens structure 110, and the contact area between dust, water droplets, and grease and the micro-nano hydrophobic layer is smaller and it is easier to separate from the lens structure 110. Therefore, the self-cleaning performance of the lens module 100 of the present application is better.

[0050] Among them, as Figure 1 and Figure 2As shown, in some embodiments, the ratio of the maximum cross-sectional dimension D1 of the curved convex structure 121 of the self-cleaning component 120 to the maximum cross-sectional dimension D2 of the inclined convex structure 122 is greater than or equal to 1 and less than or equal to 6. The maximum cross-sectional dimension D1 of the curved convex structure 121 is the maximum distance between any two points in the projected pattern formed by the curved convex structure 121 on the surface of the lens structure 110. Similarly, the maximum cross-sectional dimension D2 of the inclined convex structure 122 is the maximum distance between any two points in the projected pattern formed by the inclined convex structure 122 on the surface of the lens structure 110.

[0051] It can be understood that, in some embodiments, the ratio of the two maximum cross-sectional dimensions is greater than or equal to 2 and less than or equal to 4. For example, the maximum cross-sectional dimension D1 of the curved convex structure 121 of the self-cleaning component 120 can be 0.139 nanometers, and the maximum cross-sectional dimension D2 of the inclined convex structure 122 can be 0.0391 nanometers, and the ratio of the two is approximately 3.55.

[0052] In the lens module 100 according to the embodiment of the present application, when the ratio of the maximum cross-sectional dimension D1 of the curved convex structure 121 to the maximum cross-sectional dimension D2 of the inclined convex structure 122 is between 1 and 6, the cross-sectional dimension D2 of the curved convex structure 121 is larger, and the curved surface coverage area formed by the curved convex structure 121 is also larger. On the one hand, the curved convex structure 121 can better receive more light, making the optical performance of the lens module 100 of the present application better; on the other hand, the curved surface coverage area formed by the curved convex structure 121 is larger, and water droplets and grease are more likely to form spherical objects under their own surface tension and roll along the curved surface and roll out of the surface of the lens structure 110, making the self-cleaning performance of the lens module 100 of the present application better.

[0053] It should be noted that in the present application, the heights of the curved convex structure 121 and the inclined convex structure 122 can be set to be equal alone, or the ratio of the maximum cross-sectional dimension D1 of the curved convex structure 121 to the maximum cross-sectional dimension D2 of the inclined convex structure 122 is greater than or equal to 1 and less than or equal to 6. Of course, in the present application, the heights of the curved convex structure 121 and the inclined convex structure 122 can also be set to be equal, and the ratio of the maximum cross-sectional dimension of the curved convex structure 121 to the maximum cross-sectional dimension of the inclined convex structure 122 is greater than or equal to 1 and less than or equal to 6.

[0054] Among them, please refer to again Figure 1 and Figure 2, the self-cleaning component 120 can include a plurality of self-cleaning units 1210, and each self-cleaning unit 1210 includes a curved surface convex structure 121 and an inclined surface convex structure 122. The number of the plurality of curved surface convex structures 121 of the self-cleaning component 120 is equal to that of the plurality of inclined surface convex structures 122, so that a curved surface convex structure 121 and an inclined surface convex structure 122 are correspondingly combined together to form a self-cleaning unit 1210.

[0055] It can be understood that, in a self-cleaning unit 1210, the curved surface convex structure 121 can be arranged at intervals with the inclined surface convex structure 122, and the curved surface convex structure 121 can also be connected with the inclined surface convex structure 122.

[0056] It can be understood that, in some embodiments, all the self-cleaning units 1210 can be arranged at intervals with each other. For example, as Figure 3 shown, Figure 3 FIG. 1 is a first distribution schematic diagram of the self-cleaning component 120 of the lens module 100 provided by the embodiment of the present application. All the self-cleaning units 1210 are distributed on the surface of the lens structure 110 at a certain row spacing and column spacing at intervals with each other, and all the self-cleaning units 1210 can be arranged in an array. Of course, in other embodiments, all or part of the self-cleaning units 1210 can be connected in sequence. For example, all the self-cleaning units 1210 can be distributed on the surface of the lens structure 110 in a form of being connected in sequence from head to tail. For another example, please refer to Figure 4 , Figure 4 FIG. 2 is a second distribution schematic diagram of the self-cleaning component 120 of the lens module 100 provided by the embodiment of the present application. Part of the self-cleaning units 1210 can be connected in sequence to form a row or a column of self-cleaning structures (such as the self-cleaning group 1220 described later), and the self-cleaning structures in different rows or different columns are arranged at intervals with each other.

[0057] Each self-cleaning unit 1210 of the self-cleaning component 120 of the embodiment of the present application includes a curved surface convex structure 121 and an inclined surface convex structure 122, and a plurality of self-cleaning units 1210 are arranged on the lens structure 110, so that the lens module 100 of the present application has both better optical performance and better self-cleaning performance.

[0058] Among them, please combine Figures 1 to 4 and please refer to Figure 5 , Figure 5 FIG. 3 is a third distribution schematic diagram of the self-cleaning component 120 of the lens module 100 provided by the embodiment of the present application. The self-cleaning component 120 includes a plurality of self-cleaning groups 1220 arranged at intervals, and each self-cleaning group 1220 includes a plurality of self-cleaning units 1210. Among them, the curved surface convex structures 121 in two adjacent self-cleaning groups 1220 are at least partially staggered.

[0059] It can be understood that multiple self-cleaning units 1210 in each self-cleaning group 1220 can be connected in sequence, and multiple self-cleaning units 1210 in each self-cleaning group 1220 can also be arranged at intervals. The self-cleaning group 1220 is a row self-cleaning structure or a column self-cleaning structure of the self-cleaning component 120.

[0060] It can be understood that the curved surface convex structures 121 in two adjacent self-cleaning groups 1220 can be completely staggered. For example, the curved surface convex structure 121 in one self-cleaning group 1220 can correspond to the inclined surface convex structure 122 in another adjacent self-cleaning group 1220. Of course, considering the sizes of the curved surface convex structure 121 and the inclined surface convex structure 122, the curved surface convex structures 121 in two adjacent self-cleaning groups 1220 can also be partially staggered.

[0061] It can be understood that the inclined surface convex structures 122 in two adjacent self-cleaning groups 1220 in the embodiments of the present application can also be completely staggered or partially staggered. Moreover, the present application can design that at least part of the curved surface convex structures 121 in two adjacent self-cleaning groups 1220 are staggered or at least part of the inclined surface convex structures 122 are staggered, and the present application can also design that at least part of the curved surface convex structures 121 in two adjacent self-cleaning groups 1220 are staggered and at least part of the inclined surface convex structures 122 are also staggered.

[0062] In the self-cleaning component 120 of the embodiments of the present application, at least part of the curved surface convex structures 121 or the inclined surface convex structures 122 in two adjacent self-cleaning groups 1220 are stagger-designed. At this time, the interval or gap between the two self-cleaning groups 1220 is closer, the protrusions and depressions in the micro-nano hydrophobic layer formed by the self-cleaning component 120 are denser, and the self-cleaning performance of the self-cleaning component 120 is better.

[0063] It should be noted that the present application can also design that the curved surface convex structures 121 in two adjacent self-cleaning groups 1220 are arranged in one-to-one correspondence, and the inclined surface convex structures 122 in two adjacent self-cleaning groups 1220 are also arranged in one-to-one correspondence.

[0064] Among them, please combine Figures 1 to 5 and please refer to Figure 6 , Figure 6 which is the second structural schematic diagram of the self-cleaning component 120 of the lens module 100 provided by the embodiments of the present application. The self-cleaning component 120 includes multiple self-cleaning layers 1230 stacked along the first direction H1, and each self-cleaning layer 1230 includes multiple self-cleaning units 1210.

[0065] It can be understood that multiple self-cleaning layers 1230 are stacked in the first direction H1, making the self-cleaning component 120 of the present application a multi-layer structure. Among them, multiple self-cleaning units 1210 in each self-cleaning layer 1230 can form multiple self-cleaning groups 1220 as shown in Figure 4 , Figure 5 .

[0066] It can be understood that each curved surface convex structure 121 in adjacent two self-cleaning layers 1230 can be arranged in one-to-one correspondence, and each inclined surface convex structure 122 in adjacent two self-cleaning layers 1230 can also be arranged in one-to-one correspondence. At this time, one self-cleaning layer 1230 close to the lens structure 110 can serve as a backup layer for the upper self-cleaning layer 1230. When the upper self-cleaning layer 1230 is damaged, the lower self-cleaning layer 1230 can continue to play the role of self-cleaning.

[0067] It can be understood that each curved surface convex structure 121 in adjacent two self-cleaning layers 1230 can be arranged at least partially staggeredly; each inclined surface convex structure 122 in adjacent two self-cleaning layers 1230 can also be arranged at least partially staggeredly. At this time, the multiple self-cleaning layers 1230 can encrypt the gaps between the layered structures, further improving the self-cleaning performance of the lens module 100.

[0068] The self-cleaning component 120 of the embodiment of the present application is provided with multiple self-cleaning layers 1230, and the multiple self-cleaning layers 1230 can complement each other, improving the self-cleaning performance of the lens module 100.

[0069] Among them, please refer to Figure 7 , Figure 7 , which is the second structural schematic diagram of the lens module 100 provided by the embodiment of the present application. The lens structure 110 of the embodiment of the present application includes a polarizing plate structure with a polarization function.

[0070] As shown in Figure 7 , the lens structure 110 includes a first carrier layer 113, a polarization layer 114, and a second carrier layer 115 stacked in the first direction H1. The surface of the first carrier layer 113 facing away from the polarization layer 114 is the first surface 111, and the first surface 111 is the outer surface of the polarizing plate structure. The surface of the second carrier layer 115 facing away from the polarization layer 114 is the second surface 112, and the second surface 112 is the inner surface of the polarizing plate structure. Both the first carrier layer 113 and the second carrier layer 115 can carry the self-cleaning component 120.

[0071] It can be understood that multiple curved surface convex structures 121 and multiple inclined surface convex structures 122 can be formed on the first surface 111 of the first carrier layer 113 through an etching process. Multiple curved surface convex structures 121 and multiple inclined surface convex structures 122 can also be formed on the second surface 112 of the second carrier layer 115 through an etching process.

[0072] It is understandable that the polarization layer 114 is a structure that can convert natural light into polarized light, which has the functions of shielding and transmitting incident light. Only the light wave consistent with the vibration direction of the polarization layer 114 can pass through the polarization layer 114. Among them, the polarization layer 114 can include a linear polarization film layer and a circular polarization film layer. Among them, the polarization layer 114 can be a single-layer polarization film layer or a multi-layer polarization film layer. Under the action of the polarization layer 114, after the user wears the lens module 100 of the present application, they can watch 3D videos or 3D graphics.

[0073] It is understandable that the polarizer structure of the present application is a transparent or semi-transparent structure, and the color of the polarizer structure can be, but is not limited to, gray. The size of the polarizer structure can be designed according to actual needs.

[0074] The lens structure 110 of the embodiment of the present application includes a polarizer structure. The lens structure 110 has a polarization effect. The lens module 100 can improve the texture of the user's viewing of 3D images, making the lens module 100 of the present application not only a self-cleaning lens but also have a 3D viewing function. The lens module 100 of the present application has the function of 3D glasses.

[0075] Based on the structure of the above lens module 100, please refer to Figure 8 , Figure 8 which is the first structural schematic diagram of the wearable device 10 provided by the embodiment of the present application. The wearable device 10 of the present application includes the lens module 100 of any of the above embodiments and the frame module 200, and the frame module 200 is connected to and bears the lens module 100.

[0076] It is understandable that the wearable device 10 of the present application can be, but is not limited to, a smart glasses device. At this time, the frame module 200 can include a frame 210 and two temple arms (not shown in the drawings). The two temple arms are connected to opposite sides of the frame 210, and the lens module 100 is disposed on the frame 210. Among them, in some embodiments, the self-cleaning component 120 of the lens module 100 can also be disposed on the frame module 200. For example, the self-cleaning component 120 can also be disposed on the frame 210 of the smart glasses device. As Figure 9 and Figure 10 shown, Figure 9 is a cross-sectional structural schematic diagram of the wearable device 10 provided by the embodiment of the present application, Figure 10 is another cross-sectional structural schematic diagram of the wearable device 10 provided by the embodiment of the present application. Among them, Figure 9 is a schematic diagram of a cross-section taken from the first surface 111 of the lens module 100, Figure 10It is a schematic diagram of a cross-section taken from the second surface 112 of the lens module 100. The self-cleaning component 120 of the embodiment of the present application is simultaneously disposed on the first surface 111, the second surface 112 of the lens module 100 and the frame 210, so that the wearable device 10 has better self-cleaning performance.

[0077] It can be understood that the wearable device 10 of the present application can also be a smart helmet device. At this time, the frame module 200 can be a headgear structure, and the frame module 200 is used to cover the user's head.

[0078] Among them, please refer to Figure 11 , Figure 11 is the second structural schematic diagram of the wearable device 10 provided by the embodiment of the present application. The wearable device 10 of the embodiment of the present application can further include a projection optical machine 300. The projection optical machine 300 includes a display 310 and a lens 320. The display 310 is used to emit an optical signal towards the lens 320, and the lens 320 is used to modulate the optical signal. The lens 320 can be disposed opposite to the lens module 100 and enable the lens module 100 to receive the optical signal. Among them, the display 310 includes an OLED screen structure, an LCD screen structure or a Micro-LED screen structure.

[0079] It can be understood that the wearable device 10 of the embodiment of the present application can be, but is not limited to, a VR / AR / XR device, and the wearable device 10 can be applied to multiple fields. For example, in the field of traffic navigation, the display 310 can directly superimpose navigation information on the lens module 100 of the wearable device 10, which can avoid the danger of accidents caused by users looking down at their mobile phones or car navigation; and, drivers or passengers can mark dangerous or deceleration-required road conditions so that other users wearing the wearable device 10 can also receive reminders, thereby reducing the occurrence of accidents; moreover, users wearing the wearable device 10 can record from their own perspective, providing more evidence for determining the cause of the accident. For another example, in the medical field, VR / AR / XR devices can help doctors perform surgical operations, enabling doctors to better understand the condition before surgery and display the patient's vital signs and surgical operation information during surgery, improving the success rate of surgery. For another example, VR / AR / XR devices can also be used as teleprompters, so that users do not have to look at the prompter board unnaturally when giving a speech. For another example, in outdoor sports, VR / AR / XR devices can implement a virtual running companion function. The VR / AR / XR devices are connected to the user's mobile device through a matching APP, and users can set virtual characters by themselves to achieve the running companion function.

[0080] It can be understood that the clarity of the display screen of VR / AR / XR devices is mainly related to the resolution of the display 310 and the display receiving structure (such as the lens module 100 of the present application). When the display 310 of the present application includes a Micro-LED screen structure, the resolution of the display 310 of the wearable device 10 is better; at the same time, when the lens module 100 of the present application is used as the display screen receiving structure, the lens module 100 has better self-cleaning performance and optical performance under the action of the self-cleaning component 120. Therefore, the lens module 100 of the present application can not only better receive the light projected by the display screen, but also ensure the display effect, and the wearable device 10 of the present application has better display performance.

[0081] It can be understood that the wearable device 10 of the present application can be prepared by the following steps: First, provide a first carrier layer 113 and a second carrier layer 115 according to product requirements; then, form a plurality of curved convex structures 121 and a plurality of inclined convex structures 122 with micro-nano structures on the first surface 111 of the first carrier layer 113 by etching process, and also form a plurality of curved convex structures 121 and a plurality of inclined convex structures 122 with micro-nano structures on the second surface 112 of the second carrier layer 115 by etching process; then, also form a plurality of curved convex structures 121 and a plurality of inclined convex structures 122 with micro-nano structures on the frame module 200, such as the spectacle frame 210, by etching process; provide a polarizing layer 114 with the same size as the first carrier layer 113 and the second carrier layer 115; bond the first carrier layer 113, the polarizing layer 114 and the second carrier layer 115 together to form the lens module 100, and make the polarizing layer 114 located in the middle of the two lenses; assemble the lens module 100 with the frame module 200.

[0082] It can be understood that after the wearable device 10 is prepared, the present application can also perform a hydrophobic function test and a projection effect test. Specifically, drop water droplets, sweat, oil and dust on the first surface 111 and the second surface 112 of the lens module 100 to verify the self-cleaning effect of the lens module 100. Power on the projection optical machine 300 of the wearable device 10 to test the projection effect of the wearable device 10 and verify the clarity of the picture received by the lens module 100.

[0083] Based on the above description, under the action of the self-cleaning component 120 of the curved convex structure 121 and the inclined convex structure 122, the lens module 100 and the wearable device 10 of the embodiment of the present application have better self-cleaning performance; moreover, when the lens module 100 includes a polarizing film structure, the lens module 100 and the wearable device 10 can improve the texture of the 3D picture viewed by the user; furthermore, when the display 310 of the wearable device 10 of the present application includes a Micro-LED screen structure, the resolution of the display 310 of the wearable device 10 of the present application is better, and the wearable device 10 has better display performance.

[0084] It should be noted that the "multiple" mentioned in this application generally refers to two or more. Moreover, the directional terms mentioned in the embodiments of this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are only references to the directions in the attached drawings. Therefore, the directional terms used are for explaining and understanding the embodiments of this application, rather than for limiting the embodiments of this application. In each of the drawings, units with similar structures are denoted by the same reference numerals. For clarity, the various parts in the drawings are not drawn to scale. In addition, some related parts may not be shown in the drawings.

[0085] It should be understood that in the description of this application, terms such as "first", "second", etc. are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0086] It can be understood that those skilled in the art can, under the guidance of the above embodiments, combine various implementation manners in the above embodiments to obtain technical solutions of various implementation manners. The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of this application shall be included within the protection scope of this application.

[0087] The above provides a detailed introduction to the lens module and the wearable device provided by this application. Specific examples are used in this article to elaborate on the principles and implementation manners of this application. The descriptions of the above embodiments are only for helping to understand this application. At the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be understood as a limitation to this application.

Claims

1. A lens module, characterized in that: include: A lens structure comprising a first surface and a second surface arranged opposite to each other; and The self-cleaning component is arranged on at least one of the first surface and the second surface, and the self-cleaning component includes a micron or nanometer-sized curved surface protrusion structure and a micron or nanometer-sized inclined surface protrusion structure.

2. The lens module according to claim 1, characterized in that: The curved surface protruding structure is a hemispherical structure, and the inclined surface protruding structure is a triangular pyramid structure.

3. The lens module according to claim 1, characterized in that: In the direction from the first surface to the second surface, the curved surface protrusion structure and the inclined surface protrusion structure have the same height.

4. The lens module according to claim 1, characterized in that: The ratio of the maximum cross-sectional dimension of the curved surface protrusion structure to the maximum cross-sectional dimension of the inclined surface protrusion structure is greater than or equal to 1 and less than or equal to 6.

5. The lens module according to claim 1, characterized in that: The self-cleaning assembly includes a plurality of self-cleaning units, each of which includes one of the curved surface protrusion structures and one of the inclined surface protrusion structures; wherein some of the self-cleaning units are connected in sequence; or, all of the self-cleaning units are arranged at intervals from each other.

6. The lens module according to claim 5, characterized in that: The self-cleaning component includes multiple self-cleaning groups, each of which includes multiple self-cleaning units; wherein the curved surface protrusion structures in two adjacent self-cleaning groups are at least partially staggered, and the inclined surface protrusion structures in two adjacent self-cleaning groups are at least partially staggered.

7. The lens module according to claim 5, characterized in that: The self-cleaning component includes a plurality of stacked self-cleaning layers, and each of the self-cleaning layers includes a plurality of the self-cleaning units.

8. The lens module according to claim 7, characterized in that: The lens structure includes a polarizing plate structure.

9. A wearable device, characterized in that: include: The lens module according to any one of claims 1 to 8; and The frame module is connected to the lens module and carries the lens module.

10. The wearable device according to claim 9, characterized in that: The wearable device further comprises: A projection optical machine, comprising a display and a lens, wherein the display is used to emit a light signal toward the lens, the lens is used to modulate the light signal, and the lens module is used to receive the light signal; Wherein, the display includes an OLED screen structure, an LCD screen structure or a Micro-LED screen structure.

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