A light collecting structure and a vehicle lamp comprising the same
By introducing a refractive part that collimates and diffuses light, as well as a total internal reflection structure, the problem of the dark ring between the inner and outer diameters of the concentrator is solved, achieving uniform light distribution and improving the brightness uniformity of the headlights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
The light in the central area of the existing concentrator is too concentrated, and a dark ring is formed between the inner and outer diameters of the concentrator, resulting in uneven brightness.
A light-concentrating structure is designed, including a first refractive part and a diffuser part. By collimating and diffusing light, the light in the central area is diffused to both sides using a diffusion pattern. Combined with a total reflection part and a thick-walled component, uniform light distribution is achieved.
The dark rings were eliminated, the uniformity of the emitted light was improved, and the lighting effect of the headlights was enhanced.
Smart Images
Figure CN224498266U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of light-concentrating technology, specifically relating to a light-concentrating structure and a vehicle lamp containing the same. Background Technology
[0002] With the rapid development of modern technology and the continuous innovation of vehicle headlight design, the uniformity of the lighting effect of the lights is also particularly important while meeting regulations. The most common method is to use LEDs in conjunction with concentrators and optical components to achieve the effect of system light emission.
[0003] Existing solutions have strong energy in the inner diameter of the concentrator, resulting in bright illumination. However, traditional concentrators illuminate in a circular pattern after collimating the light. Since a dark area, or dark ring, is formed between the inner and outer diameters of the concentrator, uneven brightness is often produced. Therefore, a concentrator with uniform illumination is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a light-concentrating structure and a vehicle lamp containing the same, in order to solve the technical problem that the light in the middle area of the light-concentrating structure is too concentrated, and a dark ring is formed between the inner and outer diameters of the light-concentrating structure, resulting in uneven brightness. The invention aims to diffuse the central light to the periphery, improve the uniform distribution of the emitted light, and thus reduce the dark ring.
[0005] To address the aforementioned technical problems, this utility model provides a light-concentrating structure and a vehicle lamp incorporating the same, comprising:
[0006] A concentrator, on which a light source is provided;
[0007] A first refractive section is disposed on the middle part of the concentrator, and the first refractive section includes a collimating section and a diffuser section connected to each other;
[0008] The collimating part is used to collimate the light rays, and the diffuser part is used to diffuse the light rays;
[0009] One portion of the light rays enters the concentrator parallel to the collimating part, while the other portion of the light rays diffuses into the concentrator through the diffuser part.
[0010] Furthermore, the diffusion section includes multiple diffusion patterns, and the multiple diffusion patterns are recessed or raised;
[0011] The diffusion pattern is polygonal, and the collimation portion connects the diffusion patterns.
[0012] Furthermore, the diffusion section includes multiple diffusion patterns, and the multiple diffusion patterns are recessed or raised;
[0013] The diffusion pattern is a ring structure, and multiple diffusion patterns are arranged radially from the inside to the outside, with the collimation part connecting adjacent diffusion patterns.
[0014] Furthermore, symmetrical second refractive parts are provided at both ends of the first refractive part, and the second refractive parts are used to refract light.
[0015] The second refractive part and the first refractive part form a groove, and the light source is disposed in the groove;
[0016] A total reflection part is provided at the end of the second refractive part away from the first refractive part, and the total reflection part is used to completely reflect the light refracted by the second refractive part.
[0017] Furthermore, a thick-walled member is connected to the end of the condenser away from the light source, the condenser is in communication with the interior of the thick-walled member, and a light-emitting surface is provided at the end of the thick-walled member away from the condenser;
[0018] Furthermore, the total reflective part is provided with patterns or textures.
[0019] Furthermore, the light source can be of any color and type.
[0020] A vehicle light comprising a focusing structure as described in any of the above.
[0021] The beneficial effects of this utility model are:
[0022] This invention, by setting a first refractive part, allows light to diffuse through the diffuser on the first refractive part and then diffuse towards both sides of the center, entering the concentrator and the thick-walled component in sequence. This reduces the excessive concentration of light in the middle area of the concentrator and diffuses the light to both sides of the middle area before exiting near the middle area. The light is emitted at an angle. In contrast, existing solutions emit light horizontally, resulting in no light at the inner and outer diameters of the concentrator, thus creating a dark ring. In this application, the light at both ends diffuses to both sides, thereby eliminating the dark ring and improving the uniformity of the emitted light.
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram and optical path diagram of the light-concentrating structure of this utility model and the vehicle lamp containing it;
[0026] Figure 2 This is a structural schematic diagram and optical path diagram of the concentrator according to Embodiment 1 of this utility model;
[0027] Figure 3 yes Figure 2 Top view;
[0028] Figure 4 This is a structural schematic diagram and optical path diagram of the concentrator according to Embodiment 2 of this utility model;
[0029] Figure 5 yes Figure 4 Top view;
[0030] Figure 6 This is the optical path diagram of a concentrator in the existing technology.
[0031] In the picture:
[0032] 1. First refractive section; 11. Collimation section; 12. Diffusion section; 121. Diffusion pattern; 2. Second refractive section; 3. Total internal reflection section; 4. Concentrator; 5. Thick-walled component; 51. Light-emitting surface. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0034] Example 1:
[0035] like Figures 2-3 As shown, a light-concentrating structure and a vehicle lamp containing the same are disclosed, comprising: a light-concentrating element 4, wherein a light source is disposed on the light-concentrating element 4, the light source being of any color and type, such as single-core, dual-core, etc.; a first refractive part 1 is disposed on the middle part of the light-concentrating element 4, the first refractive part 1 being used to collimate and diffuse the light emitted by the light source, the light entering the light-concentrating element 4 through the first refractive part 1, thereby improving the uniformity of the light.
[0036] The first refractive part 1 includes a collimating part 11 and a diffuser part 12 connected to each other; a portion of the diffuser part 12 is recessed, and another portion of the diffuser part 12 is protruding; the collimating part 11 is used to collimate light rays, and the diffuser part 12 is used to diffuse light rays; the recessed and protruding arrangement of the diffuser part 12 makes the angle of light diffusion after passing through the diffuser part 12 larger; in addition, the collimating part 11 also has the function of weakly diffusing light rays, and the diffuser part 12 also has the function of weakly collimating light rays.
[0037] In this embodiment, light emitted from the light source at any angle is directed onto the first refractive part 1. Part of the light is collimated by the collimating part 11 into parallel vertical (horizontal) light rays that enter the concentrator 4. Another part of the light rays is diffused vertically by the diffuser 12 and enters the concentrator 4. The light rays diffused by the diffuser 12 are obliquely directed onto both sides of the collimated light rays, thereby dispersing the light rays that are too concentrated in the middle area to both sides and improving the uniformity of the light rays.
[0038] It should be noted that the diffuser 12 includes multiple diffuser patterns 121, which are polygonal in shape. Collimation sections 11 connect the diffuser patterns 121. The diffuser patterns 121 are randomly distributed on the first refractive section 1, and their size, shape, form and arrangement can be adjusted and changed according to the usage requirements. The diffuser patterns 121 are used to diffuse light into the concentrator 4, and the collimation sections 11 are between the diffuser patterns 121.
[0039] Example 2:
[0040] like Figure 4 and Figure 5 As shown, the difference from Embodiment 1 is that the diffusion section 12 includes a plurality of diffusion patterns 121, the diffusion patterns 121 are annular structures, the plurality of diffusion patterns 121 are arranged radially from the inside to the outside, the plurality of diffusion patterns 121 are arranged sequentially to the outside, and a collimation section 11 is connected between adjacent diffusion patterns 121.
[0041] Furthermore, the diffusion pattern 121 of this application is not limited to polygons and rings; the diffusion pattern 121 of this application can be any shape that satisfies both diffusion function and random distribution and radial arrangement.
[0042] Example 3:
[0043] like Figure 1 As shown, based on Embodiment 1 and Embodiment 2, symmetrical second refractive parts 2 are provided at both ends of the first refractive part 1. The second refractive part 2 is used to refract light. The second refractive part 2 and the first refractive part 1 form a groove, and the light source is located in the groove. A total reflection part 3 is provided at the end of the second refractive part 2 away from the first refractive part 1. The total reflection part 3 is used to completely reflect the light refracted by the second refractive part 2. The two total reflection parts 3 are symmetrically arranged.
[0044] The end of the condenser 4 away from the light source is connected to a thick-walled member 5, which is connected to the total reflection part 3 of the condenser 4. The condenser 4 and the interior of the thick-walled member 5 are connected, and the end of the thick-walled member 5 away from the condenser 4 is provided with a light-emitting surface 51.
[0045] One portion of the light is collimated by the collimating part 11 and undergoes total internal reflection on the inner wall of the thick-walled member 5 before being emitted horizontally from the light-emitting surface 51; the other portion of the light is diffused by the diffuser 12 and undergoes total internal reflection on the inner wall of the thick-walled member 5 before being emitted from the light-emitting surface 51 along the direction close to the center of the light-emitting surface 51.
[0046] In this embodiment, the light rays collimated by the collimating part 11 enter the concentrator 4 vertically (horizontally) and then strike the thick-walled member 5. After total internal reflection on the inner wall of the thick-walled member 5, the light rays exit horizontally from the center of the light-emitting surface 51. The light rays diffused by the diffuser 12 enter the concentrator 4 to both sides and then strike the thick-walled member 5. After multiple total internal reflections on the inner wall of the thick-walled member 5, the light rays exit obliquely from both sides of the light-emitting surface 51, with the oblique direction being closer to the center of the light-emitting surface 51. The diffusion pattern 121 diffuses the light rays that are too concentrated in the center of the concentrator 4 to both sides, thereby improving the uniformity of the light rays.
[0047] It should be noted that, as Figure 6 As shown, in the existing solution, the light from the concentrator 4 is emitted horizontally, and there is no light between the inner and outer diameters of the concentrator 4, thus forming a dark ring. In this application, the diffused light is emitted at an angle to both sides, thereby illuminating the dark ring area, eliminating the dark ring, and improving the lighting effect of the headlight.
[0048] The total reflection part 3 is provided with a pattern or texture. The light emitted by the light source can be refracted by the second refraction part 2 and then shine on the total reflection part 3. After being totally reflected by the total reflection part 3, it enters the thick-walled part 5. The light emitted by the light source can also be diffused by the diffusion part 12 and shine on the total reflection part 3. After being totally reflected by the total reflection part 3, it enters the thick-walled part 5. The pattern or texture of the light in the total reflection part 3 improves the uniformity. The pattern can be a diffusion pattern 121.
[0049] In this embodiment, the concentrator 4 is made of PC or PMMA material. Polycarbonate (PC) and polymethyl methacrylate (PMMA) have high toughness, impact resistance, high surface hardness and high light transmittance, and are less expensive than glass materials.
[0050] Example 4:
[0051] A vehicle light, comprising a focusing structure as described in any of the above embodiments.
[0052] In summary, a portion of the light emitted from the light source is collimated by the collimator 11 and then enters the concentrator 4 vertically (horizontally) before striking the thick-walled member 5. After total internal reflection on the inner wall of the thick-walled member 5, it exits horizontally from the center of the light-emitting surface 51. Another portion of the light is diffused by the diffuser 12 and then enters the concentrator 4 to both sides before striking the thick-walled member 5. After multiple total internal reflections on the inner wall of the thick-walled member 5, it exits obliquely from both sides of the light-emitting surface 51, with the oblique direction being closer to the center of the light-emitting surface 51. The diffusion pattern 121 diffuses the light portion that is too concentrated in the center of the concentrator 4 to both sides, thereby improving the uniformity of the light and eliminating the dark ring of the concentrator 4.
[0053] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0054] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0056] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A light-concentrating structure, characterized in that, include: A concentrator (4) is provided with a light source; The first refractive part (1) is disposed on the middle part of the concentrator (4). The first refractive part (1) includes a collimating part (11) and a diffuser part (12) connected to each other. The collimating part (11) is used to collimate the light rays, and the diffuser part (12) is used to diffuse the light rays. One portion of the light rays enters the concentrator (4) parallel to the collimating part (11), while the other portion of the light rays diffuses into the concentrator (4) through the diffuser part (12).
2. The light-concentrating structure as described in claim 1, characterized in that, The diffuser (12) includes a plurality of diffuser patterns (121), which are recessed or raised. The diffusion pattern (121) is polygonal, and the collimation portion (11) is connected between the diffusion patterns (121).
3. A light-concentrating structure as described in claim 1, characterized in that, The diffuser (12) includes a plurality of diffuser patterns (121), which are recessed or raised. The diffusion pattern (121) is a ring structure, and multiple diffusion patterns (121) are arranged radially from the inside to the outside. The collimation part (11) is connected between adjacent diffusion patterns (121).
4. A light-concentrating structure as described in claim 1, characterized in that, The first refractive part (1) has symmetrical second refractive parts (2) at both ends, and the second refractive parts (2) are used to refract light. The second refractive part (2) and the first refractive part (1) form a groove, and the light source is disposed in the groove; The second refractive part (2) is provided with a total reflection part (3) at the end away from the first refractive part (1), and the total reflection part (3) is used to reflect the light refracted by the second refractive part (2).
5. A light-concentrating structure as described in claim 1, characterized in that, The condenser (4) is connected to a thick-walled member (5) at the end away from the light source. The condenser (4) is in communication with the interior of the thick-walled member (5). The end of the thick-walled member (5) away from the condenser (4) is provided with a light-emitting surface (51).
6. A light-concentrating structure as described in claim 4, characterized in that, The total reflective part (3) is provided with patterns or textures.
7. A light-concentrating structure as described in claim 1, characterized in that, The light source can be of any color and type.
8. A vehicle light, characterized in that, Includes the light-concentrating structure as described in any one of claims 1 to 7.