Light-emitting structure, sound equipment and surface design method
By adopting a light emitting structure with an exit curved surface convex design in the audio, the problems of low optical efficiency and poor uniformity of traditional audio are solved, and a more efficient and uniform lighting effect is achieved.
Patent Information
- Application Number
- CN202510172725.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-05-23
AI Technical Summary
When traditional audio achieves a specific form of lighting effect, there are problems of low optical efficiency and poor uniformity.
A light emitting structure is adopted, including a bracket, a lens and a light source. The lens is provided with an incident plane and an exit curved surface. The exit curved surface protrudes from the edge of the lens to the center, and is used to converge the light emitted by the light source and improve the uniformity of the irradiated area of the light source.
By adjusting the exit curved surface shape of the lens, the optical efficiency is improved, and the illumination intensity of the irradiated area of the light source is more uniform, achieving a uniform lighting effect in a specific form.
Smart Images
Figure CN120034765A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic equipment, and in particular to a light-emitting structure, a sound system and a surface design method. Background Art
[0002] With the development of the times, consumers have higher and higher requirements for the appearance and functionality of speakers. Specifically, in order to meet the actual use needs of consumers, speakers need to achieve specific lighting effects in addition to their traditional functions. However, traditional speakers have technical problems such as low optical efficiency and poor uniformity when achieving specific lighting effects.
[0003] Therefore, it is necessary to provide a new light-emitting structure, sound and surface design method to solve the above technical problems. Summary of the invention
[0004] The main purpose of the present invention is to provide a light-emitting structure, a speaker and a surface design method, aiming to solve the technical problems of low optical efficiency and poor uniformity of existing speakers.
[0005] To achieve the above object, the present invention provides a light emitting structure, comprising:
[0006] Bracket;
[0007] A lens, wherein the lens is arranged on the bracket and the lens is provided with an incident plane and an exit curved surface;
[0008] A light source, the light source is disposed on the bracket and is disposed toward the incident plane;
[0009] The exit curved surface protrudes from the edge of the lens toward the center of the lens, and the exit curved surface is provided with a vertex, and the vertex is located on one side of the central axis of the lens; the exit curved surface is used to converge the light emitted by the light source and to improve the uniformity of the irradiation area of the light source.
[0010] The present invention also provides a sound system, comprising:
[0011] A box body, wherein a plurality of handles are arranged on the top of the box body along the circumference thereof;
[0012] As the light-emitting structure described above, each of the handles is provided with the light-emitting structure;
[0013] A window plate is provided on each of the handles, and the window plate is arranged to face the exit curved surface.
[0014] The present invention further proposes a surface design method for an exit curved surface of a lens, which is applied to the light-emitting structure as described above, wherein the lens has a first direction, a second direction and a third direction, wherein the first direction, the second direction and the third direction are arranged perpendicularly in pairs, and the third direction is parallel to the optical axis of the lens, and it is defined that: a plane formed by the first direction and the third direction is a first plane, and a plane formed by the second direction and the third direction is a second plane; the surface design method comprises:
[0015] Acquire a required irradiation area, and adjust the surface shape of the light-emitting surface of the lens on the first plane and the second plane according to the required irradiation area, so that the actual irradiation area of the light source is the same as the required irradiation area, thereby forming a first curved surface;
[0016] Adjusting the convex amplitude of the light emitting surface of the lens in the third direction so that the light intensity irradiated by the light source to the required irradiation area is uniform, thereby forming a second curved surface;
[0017] The first curved surface and the second curved surface are stacked, and the first curved surface and the second curved surface are integrated with a preset function, so that a smooth transition surface is formed at the intersection of the first curved surface and the second curved surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 A schematic structural diagram of a light-emitting structure in an embodiment of the present invention;
[0020] Figure 2 for Figure 1 Exploded diagram of
[0021] Figure 3 for Figure 1 An exploded view from another perspective;
[0022] Figure 4 A schematic diagram of the structure of a speaker in an embodiment of the present invention;
[0023] Figure 5 for Figure 4 Schematic diagram from another perspective;
[0024] Figure 6 A rendering of the current irradiation area in an embodiment of the present invention;
[0025] Figure 7 A rendering of a desired irradiation area in an embodiment of the present invention;
[0026] Figure 8 A schematic flow chart of a surface design method in an embodiment of the present invention;
[0027] Fig. 9 A schematic flow chart of a surface design method in another embodiment of the present invention.
[0028] Description of Figure Numbers:
[0029] 100, bracket; 110, mounting hole; 120, mounting groove; 121, inner wall; 130, positioning groove; 140, positioning rod; 150, buckle; 200, lens; 210, exit curved surface; 220, lens body; 230, substrate; 231, positioning surface; 300, light source; 400, mounting plate; 410, positioning hole; 500, box; 510, handle; 600, window plate.
[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.
[0034] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0035] In order to meet the actual needs of consumers, in addition to realizing the traditional functions of audio, speakers also need to achieve specific forms of lighting effects. Then, in the actual production process, researchers found that traditional speakers mostly use physical shading sheets or aperture shading to achieve specific forms of lighting effects. Although this method can achieve specific forms of lighting effects, it uses shading to achieve it, which leads to the fact that the light from the light source entering the lens is not fully utilized, resulting in a technical problem of low optical efficiency; and, since most light sources are Lambertian distributed, this leads to a strong light intensity at the center of the final illumination area and a weak light intensity at the edge, resulting in a technical problem of poor uniformity.
[0036] The present invention provides a light emitting structure, a speaker and a surface design method, aiming to solve the technical problems of low optical efficiency and poor uniformity of the existing speakers.
[0037] See also Figures 1 to 3 In one embodiment of the present invention, the light emitting structure includes a bracket 100, a lens 200 and a light source 300. The lens 200 is arranged on the bracket 100, and the lens 200 is provided with an incident plane and an exit curved surface 210. The light source 300 is arranged on the bracket 100 and is arranged toward the incident plane. The exit curved surface 210 protrudes from the edge of the lens 200 toward the center of the lens 200, and the exit curved surface 210 is provided with a vertex, and the vertex is located on one side of the central axis of the lens 200. The exit curved surface 210 is used to converge the light emitted by the light source 300 and to improve the uniformity of the irradiation area of the light source 300. In this embodiment, the irradiation area of the light source 300 is fan-shaped. The vertex of the exit curved surface 210 can be a curved surface positioning point, which refers to a key point on the curved surface of the lens 200 for determining its position and direction.
[0038] The technical solution of the present invention can improve the optical efficiency by adjusting the surface shape of the exit curved surface 210 to converge the light emitted by the light source 300. At the same time, it can also make the light intensity of the irradiated area of the light source 300 more uniform, so as to improve the uniformity of the irradiated area of the light source 300. Accordingly, by installing the light emitting structure on the sound, the sound can achieve a uniform lighting effect with a specific form. In this embodiment, the light source 300 is used to emit light, and the light source 300 can be a light emitting element such as an LED lamp. The lens 200 is used to converge and diverge the light. By making the exit curved surface 210 of the lens 200 protrude from the edge of the lens 200 to the center, and making the vertex of the exit curved surface 210 located on one side of the central axis of the lens 200, the light emitted by the light source 300 can be converged into a fan shape; compared with the light effect of the fan shape achieved by the shielding method, the light emitting structure can make full use of the light emitted by the light source 300, improve the optical efficiency, and also make the irradiated area of the light source 300 brighter. At the same time, the above-mentioned design of the exit curved surface 210 of the lens 200 can also make the light intensity of the irradiation area of the light source 300 more uniform, thereby improving the uniformity of the irradiation area of the light source 300.
[0039] The surface design of the above-mentioned exit curved surface 210 can converge the light emitted by the light source 300 into a fan shape, mainly based on the refraction of light and the optical characteristics of the lens 200. Specifically, by designing the exit curved surface 210 of the lens 200 to bulge from the edge of the lens 200 to the center, and making the vertex of the exit curved surface 210 located on one side of the central axis of the lens 200, it can make the light emitted by the light source 300 refract when leaving the lens 200, so that the light is concentrated and spread in a certain direction of the lens 200, forming a special fan-shaped form. The surface design of the above-mentioned exit curved surface 210 can make the light intensity of the irradiated area of the light source 300 more uniform, mainly based on optical refraction and the propagation law of light. Specifically, when the light emitted by the light source 300 is directed toward the lens 200, the light will be refracted on the exit curved surface 210; and after the light passes through the lens 200, its propagation direction will be readjusted. Since the convex part of the exit curved surface 210 has a smaller refraction angle for the light and the edge part has a larger refraction angle, the light originally concentrated near the light source 300 will be dispersed and redistributed. Specifically, through the design of the exit curved surface 210, when the light passes through the lens 200, the light in the central area can be guided to the edge, thereby balancing the distribution of the light intensity and making the light intensity of the irradiated area of the light source 300 more uniform.
[0040] In addition, it should be noted that when a specific form of lighting effect is achieved by shielding, the installation of the shielding structure will increase the volume of the light-emitting structure; while the light-emitting structure in the present invention improves the optical efficiency and the uniformity of the irradiation area of the light source 300 by adjusting the surface shape of the lens 200, and it does not need to install additional structural components, which can reduce the volume of the light-emitting structure. This also enables the light-emitting structure in the present invention to be installed in a smaller space size. Moreover, through the surface design of the exit curved surface 210, the light-emitting structure in the present invention only requires one light source 300 and a lens 200 to achieve a uniform lighting effect with a specific form, which can reduce the number of optical components and thus reduce production costs.
[0041] In one embodiment of the present invention, the outer edge of the exit curved surface 210 is tilted from the exit curved surface 210 to a side away from the incident plane. In this embodiment, the outer edge of the exit curved surface 210 is tilted from the exit curved surface 210 to a side away from the incident plane, which can make the edge of the irradiation area of the light source 300 clearer. Specifically, the outer edge of the exit curved surface 210 is tilted, which can refract the light to the irradiation area (i.e., cut off the light) when the light passes through the outer edge of the lens 200, thereby making the edge of the irradiation area of the light source 300 clearer.
[0042] In one embodiment of the present invention, the vertex is located on the optical axis of the light source 300. In this embodiment, the vertex of the exit curved surface 210 is located on the optical axis of the light source 300, which can enhance the luminous effect of the optical structure. It should be noted that when assembling the light-emitting structure, the vertex of the exit curved surface 210 needs to be located on the optical axis of the light source 300, that is, the vertex of the exit curved surface 210 is synchronized with the optical axis of the light source 300, thereby ensuring the luminous effect of the optical mechanism.
[0043] See also Figure 2 and Figure 3In one embodiment of the present invention, the lens 200 includes an integrally formed lens body 220 and a substrate 230, the bracket 100 is provided with a mounting hole 110, a mounting groove 120 connected to the mounting hole 110, and a positioning groove 130 connected to the mounting groove 120, the lens body 220 is penetrated through the mounting hole 110, a part of the substrate 230 is accommodated in the mounting groove 120, and another part of the substrate 230 is accommodated in the positioning groove 130; the substrate 230 is provided with a plurality of positioning surfaces 231, the mounting groove 120 is provided with a plurality of inner walls 121, the number of the positioning surfaces 231 is equal to that of the inner walls 121, and each positioning surface 231 abuts against the corresponding inner wall 121. In this embodiment, the lens body 220 is installed on the bracket 100 through the substrate 230, and a part of the substrate 230 is accommodated in the mounting groove 120, and another part is accommodated in the positioning groove 130, which can position the substrate 230 to ensure the accuracy of the installation position of the lens body 220. At the same time, the positioning surfaces 231 of the mounting substrate 230 are correspondingly abutted against the inner walls 121 of the mounting groove 120, which can limit the position of the substrate 230, ensure the stability of the position of the substrate 230, and further ensure the stability of the position of the lens body 220, thereby reducing the possibility of shaking of the lens 200 when in use. In a specific embodiment, the substrate 230 and the mounting groove 120 are both square, and the portion of the substrate 230 accommodated in the mounting groove 120 corresponds to the structure and size of the mounting groove 120.
[0044] In one embodiment of the present invention, the light emitting structure further comprises a mounting plate 400, the mounting plate 400 is arranged on the bracket 100 in a manner facing the lens 200, the light source 300 is arranged on the side of the mounting plate 400 facing the lens 200, the mounting plate 400 is provided with a positioning hole 410, the bracket 100 is provided with a positioning rod 140, and the positioning rod 140 is passed through the positioning hole 410. In this embodiment, the light source 300 is mounted on the bracket 100 through the mounting plate 400. By opening the positioning hole 410 on the mounting plate 400 and providing the positioning rod 140 passing through the positioning hole 410 on the bracket 100, the mounting plate 400 can be positioned to ensure the accuracy of the installation position of the mounting plate 400; at the same time, the position of the mounting plate 400 can be limited to ensure the stability of the position of the mounting plate 400, thereby reducing the possibility of the light source 300 mounted on the mounting plate 400 shaking during use. In a specific embodiment, the bracket 100 is provided with a buckle 150, and the buckle 150 can abut against the end surface of the mounting plate 400 away from the lens 200. In other words, the mounting plate 400 is mounted on the bracket 100 by a buckling method, which can reduce the assembly difficulty of the light-emitting structure. In a more specific embodiment, the number of the buckles 150 is two, and the two buckles 150 are respectively arranged on both sides of the mounting plate 400.
[0045] See also Figure 4 and Figure 5The present invention further proposes a speaker, which includes the above-mentioned light-emitting structure. The specific structure of the light-emitting structure refers to the above-mentioned embodiment. Since the speaker adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.
[0046] The speaker also includes a box 500 and a window plate 600. A plurality of handles 510 are arranged on the top of the box 500 along its circumference. Each handle 510 is provided with the above-mentioned light-emitting structure and window plate 600, and the window plate 600 is arranged in a manner facing the exit curved surface 210. In this embodiment, the light-emitting structure is arranged in the handle 510, and the window plate 600 is installed on the handle 510 and is used to shield and protect the light-emitting structure. In order to make the appearance of the speaker more beautiful, the outer surface of the window sheet can be flush with the outer surface of the handle 510. In a specific embodiment, the box 500 is a square cylinder, and the number of handles 510 is four, and the four handles 510 are respectively arranged around the box 500. In this embodiment, when the light-emitting structure is installed on the handle of the speaker, the lens 200 is arranged at an angle with the horizontal plane.
[0047] See also Figures 6 to 9 The present invention also proposes a surface design method for the output curved surface of a lens, which is applied to the above-mentioned light-emitting structure. The lens 200 has a first direction, a second direction and a third direction. The first direction, the second direction and the third direction are arranged perpendicularly in pairs, and the third direction is parallel to the optical axis of the lens 200. It is defined that the plane formed by the first direction and the third direction is the first plane, and the plane formed by the second direction and the third direction is the second plane. Among them, the first direction refers to Figure 2 The second direction is the direction indicated by X in Figure 2 The third direction is the direction indicated by Y in Figure 2 The direction indicated by Z in .
[0048] See also Figure 8 , Figure 8 A schematic flow chart of a face shape design method in an embodiment of the present invention; the face shape design method comprises:
[0049] S100, obtaining a required irradiation area, and adjusting the surface shape of the light-emitting surface of the lens 200 on the first plane and the second plane according to the required irradiation area, so that the actual irradiation area of the light source 300 is the same as the required irradiation area, forming a first curved surface; wherein the surface shape of the light-emitting surface of the lens 200 on the first plane refers to the projection of the lens 200 on the first plane, and the surface shape of the light-emitting surface of the lens 200 on the second plane refers to the projection of the lens 200 on the second plane;
[0050] S200, adjusting the convex amplitude of the light-emitting surface of the lens 200 in the third direction, so that the light intensity of the light source 300 irradiating the required irradiation area is uniform, forming a second curved surface; wherein the convex amplitude refers to the height of the light-emitting surface of the lens 200 convex along the third direction in the plane of the first direction and the second direction;
[0051] S300, stacking a first curved surface and a second curved surface, and integrating the first curved surface and the second curved surface with a preset function, so that a smooth transition surface is formed at the intersection of the first curved surface and the second curved surface.
[0052] Specifically, when designing the surface shape of the exit curved surface 210 of the lens 200, it is first necessary to obtain the current irradiation area ( Figure 6 The area indicated by N in the figure) and the required irradiation area is obtained according to the needs of consumers ( Figure 7 The area indicated by M in the figure) is used to calculate the size L of the current irradiation area. 1 and the size of the area to be irradiated L 2 , and according to the size L of the current irradiation area 1 and the size of the area to be irradiated L 2 Calculate the edge shrinkage ratio K 1 , with parameter K 1 Perform initial magnification constraints and establish the original model of the lens 200. Adjust the surface shape of the light-emitting surface of the lens 200 on the first plane and the second plane according to the required irradiation area, so that the actual irradiation area of the light source 300 is the same as the required irradiation area, forming a first curved surface. Among them, the first curved surface is a centrally convex shape, that is, the lens 200 at this time is a centrally convex structure. Adjust the convex amplitude of the light-emitting surface of the lens 200 in the third direction, so that the light intensity irradiated by the light source 300 to the required irradiation area is uniform, forming a second curved surface. Fit the first curved surface and the second curved surface to form a third curved surface, that is, stack the first curved surface and the second curved surface, and integrate the first curved surface and the second curved surface with a preset function, so that the transition at the junction of the first curved surface and the second curved surface is smooth and natural. Perform difference surface reduction and surface shape compensation on the fitted third curved surface, and after multiple iterative optimizations, finally form the output curved surface 210 of the lens 200. By designing the surface shape of the exit curved surface 210 of the lens 200 by the above method, uniform irradiation of the sound system installed with the above light-emitting structure in the required irradiation area can be achieved. It should be noted that the above steps S200 and S300 can be completed simultaneously or in steps; in this embodiment, steps S200 and S300 are completed simultaneously, that is, while forming the second curved surface, the first curved surface and the second curved surface are fitted, so that the transition at the intersection of the first curved surface and the second curved surface is smooth and natural.
[0053] Among them, the above-mentioned current irradiation area is semicircular, and the consumer's demand is to form a circular irradiation area on the outside of the speaker. Therefore, the above-mentioned required irradiation area can be a fan-shaped area with an angle of 90°, and the four required irradiation areas are combined into the circular irradiation area required by the consumer. By installing a light-emitting structure on each of the four handles 510 of the box 500, the irradiation areas of the four light-emitting structures can be combined into a circular irradiation area to meet the needs of consumers. It should be noted that in actual design, the exit curved surface 210 of the lens 200 can be designed into different surface shapes according to the actual needs of consumers and the structure of the box 500. For example: when the consumer's demand is a circular irradiation area and the box 500 is a triangular cylinder, the actual irradiation area of the light-emitting structure can be designed as a fan-shaped area with an angle of 120°.
[0054] In one embodiment of the present invention, the light emitting surface of the lens 200 has an upper area, and the step of adjusting the surface shape of the light emitting surface of the lens 200 on the first plane and the second plane according to the required irradiation area includes: adjusting the light emitting surface of the lens 200 according to the required irradiation area so that the upper area convexes toward the side away from the light incident surface of the lens 200. By adjusting the original model so that the upper area convexes toward the side away from the light incident surface of the lens 200, the light emitted by the light source 300 can be refracted when leaving the lens 200, and then the light is refracted to the required irradiation area, forming a special fan-shaped shape. In this embodiment, the upper area is located in the middle of the light emitting surface of the lens 200 along the first direction, and is located on the upper side of the central axis of the lens 200; specifically, the upper area is provided with a vertex, and the vertex is located on the upper side of the central axis of the lens 200. Specifically, after the step S100, the center of the light emitting surface of the lens in this embodiment will bulge along the third direction. At this time, the projections of the lens on the first plane and the second plane are both convex structures.
[0055] In one embodiment of the present invention, the step of adjusting the convex amplitude of the light-exiting surface of the lens 200 in the third direction includes: adjusting the light-exiting surface of the lens 200 so as to reduce the convex amplitude of the light-exiting surface of the lens 200 in the third direction. After the original model is adjusted in step S100, by adjusting the light-exiting surface of the lens 200 so as to reduce the convex amplitude of the light-exiting surface of the lens 200, the light intensity of the central area of the required irradiation area can be compensated to the edge area, thereby making the light intensity of the required irradiation area more uniform.
[0056] See also Fig. 9In another embodiment of the present invention, after the step of forming the first curved surface and before the step of adjusting the convex amplitude of the light-emitting surface of the lens 200 in the third direction, the method further includes step S101: adjusting the surface shape of the light-emitting surface of the lens 200 so that the light-emitting surface of the lens 200 is tilted along both sides of the first direction toward the side away from the light-entering surface of the lens 200. After the original model is adjusted in step S100, by adjusting the light-emitting surface of the lens 200 so that the light-emitting surface of the lens 200 is tilted along both sides of the first direction toward the side away from the light-entering surface of the lens 200, the light can be refracted to the required irradiation area when the light passes through the outer edge of the lens 200, thereby making the edge of the required irradiation area clearer.
[0057] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.
Claims
1. A light emitting structure, characterized in that: include: Bracket; A lens, wherein the lens is arranged on the bracket and the lens is provided with an incident plane and an exit curved surface; A light source, the light source is disposed on the bracket and is disposed toward the incident plane; The exit curved surface protrudes from the edge of the lens toward the center of the lens, and the exit curved surface is provided with a vertex, and the vertex is located on one side of the central axis of the lens; the exit curved surface is used to converge the light emitted by the light source and to improve the uniformity of the irradiation area of the light source.
2. The light emitting structure according to claim 1, characterized in that: An outer edge of the exit curved surface is tilted from the exit curved surface toward a side away from the incident plane.
3. The light emitting structure according to claim 1, characterized in that: The vertex is located on the optical axis of the light source.
4. The light emitting structure according to claim 1, characterized in that: The lens comprises an integrally formed lens body and a substrate, the bracket is provided with a mounting hole, a mounting groove communicating with the mounting hole, and a positioning groove communicating with the mounting groove, the lens body is passed through the mounting hole, a part of the substrate is accommodated in the mounting groove, and another part of the substrate is accommodated in the positioning groove; The base plate is provided with a plurality of positioning surfaces, and the mounting groove is provided with a plurality of inner walls. The number of the positioning surfaces is equal to the number of the inner walls, and each positioning surface abuts against the corresponding inner wall.
5. The light emitting structure according to claim 1, characterized in that: The light-emitting structure also includes a mounting plate, which is arranged on the bracket in a manner of facing the lens, the light source is arranged on a side of the mounting plate facing the lens, the mounting plate is provided with a positioning hole, the bracket is provided with a positioning rod, and the positioning rod is passed through the positioning hole.
6. A sound system, characterized in that: include: A box body, wherein a plurality of handles are arranged on the top of the box body along the circumference thereof; The light-emitting structure according to any one of claims 1 to 5, wherein each of the handles is provided with the light-emitting structure; A window plate is provided on each of the handles, and the window plate is arranged to face the exit curved surface.
7. A method for designing the surface shape of an output curved surface of a lens, applied to the light-emitting structure according to any one of claims 1 to 5, wherein the lens has a first direction, a second direction and a third direction, the first direction, the second direction and the third direction are arranged perpendicularly in pairs, and the third direction is parallel to the optical axis of the lens, and it is defined that: a plane formed by the first direction and the third direction is a first plane, and a plane formed by the second direction and the third direction is a second plane; characterized in that: The surface design method comprises: Acquire a required irradiation area, and adjust the surface shape of the light-emitting surface of the lens on the first plane and the second plane according to the required irradiation area, so that the actual irradiation area of the light source is the same as the required irradiation area, thereby forming a first curved surface; Adjusting the convex amplitude of the light emitting surface of the lens in the third direction so as to make the light intensity of the light source irradiating the required irradiation area uniform, thereby forming a second curved surface; The first curved surface and the second curved surface are stacked, and the first curved surface and the second curved surface are integrated with a preset function, so that a smooth transition surface is formed at the intersection of the first curved surface and the second curved surface.
8. The surface design method according to claim 7, characterized in that: The light emitting surface of the lens has an upper area, and the step of adjusting the surface shape of the light emitting surface of the lens on the first plane and the second plane according to the required irradiation area includes: adjusting the light emitting surface of the lens according to the required irradiation area so that the upper area convexes toward the side away from the light incident surface of the lens.
9. The surface design method according to claim 7 or 8, characterized in that: The step of adjusting the protrusion amplitude of the light-emitting surface of the lens in the third direction includes: adjusting the light-emitting surface of the lens to reduce the protrusion amplitude of the light-emitting surface of the lens in the third direction.
10. The surface design method according to claim 7, characterized in that: After the step of forming the first curved surface and before the step of adjusting the protrusion amplitude of the light-emitting surface of the lens in the third direction, the method further includes the step of adjusting the surface shape of the light-emitting surface of the lens so that the light-emitting surface of the lens is tilted along both sides of the first direction toward the side away from the light-entering surface of the lens.