Light source inner lens, light source assembly and vehicle lamp
By designing an internal lens in the light source, the light is integrated and distributed to multiple light-emitting surfaces to form multiple parallel light-emitting strips, which solves the problem of high cost in existing technologies and achieves the effects of reducing costs and improving light efficiency.
Patent Information
- Application Number
- CN202520491513.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In existing technologies, to achieve the effect of multiple parallel light-emitting strips, a separate light source and PCB board are required for each light-emitting strip, resulting in high costs.
Design a light source internal lens, including a light integration part and a light reflection part, to integrate and distribute light to multiple light-emitting surfaces through the reflection surface, forming multiple parallel light-emitting strips, thereby reducing the number of LEDs used.
It improves light efficiency, reduces costs, and enhances the marketability of the product.
Smart Images
Figure CN223895764U_ABST
Abstract
Description
Technical Field
[0001] This utility model is applicable to the field of automotive lighting, and in particular relates to an inner lens of a light source, a light source assembly, and an automotive lamp. Background Technology
[0002] Since the invention of the automobile, headlights have been an essential component for vehicle safety. In recent years, in addition to basic safety and regulatory requirements, the effectiveness of their illumination has received increasing attention.
[0003] With the widespread use of LED technology, vehicle lighting design is no longer limited to complying with national laws and regulations; it also needs to achieve better commercial viability at the lowest cost.
[0004] To achieve better appearance and marketability, existing automotive lighting technology often incorporates multiple parallel light-emitting surfaces to create a multi-parallel light-emitting strip effect for the same function. Achieving this effect requires a separate light source and PCB board for each light-emitting strip, resulting in higher costs.
[0005] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content
[0006] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an inner lens of a light source, a light source assembly, and a vehicle lamp.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] In a first aspect, a light source internal lens includes a light integrating portion and a light reflecting portion. The light integrating portion extends and protrudes from the light reflecting portion along a first direction, and has a light-entry groove at the protruding end. The light integrating portion has a reflective outer wall surface. The light integrating portion is used to guide light rays incident from the light-entry groove into the light reflecting portion along the first direction. The light reflecting portion has a reflective surface and a light-exiting surface. The light-exiting surface includes a first light-exiting surface and a second light-exiting surface spaced apart along the first direction. The reflective surface includes a first reflective surface and a second reflective surface. The first reflective surface and the second reflective surface are spaced apart along the first direction. The first reflective surface is used to reflect light rays incident from the light integrating portion along the first direction along the second direction to the first light-exiting surface along the second direction. The second reflective surface is used to reflect light rays incident from the light integrating portion along the first direction along the second direction to the second light-exiting surface along the second direction.
[0009] In conjunction with the first aspect, in some implementations of the first aspect, a first reflective surface step is provided between the first reflective surface and the second reflective surface, the first reflective surface step extends along a first direction, and the first reflective surface and the second reflective surface are inclined surfaces inclined to the first reflective surface step.
[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the inner lens of the light source extends a certain length along a third direction, the light-emitting surface forms a strip-shaped light-emitting surface extending along a third direction, and the inner lens of the light source has multiple light-integrating parts, which are arranged along a third direction.
[0011] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the light-emitting surface further includes a third light-emitting surface, the first light-emitting surface, the second light-emitting surface and the third light-emitting surface are distributed at intervals along the first direction, and the reflective surface includes a third reflective surface, which is used to reflect the light rays incident from the light integration part along the first direction to the third light-emitting surface along the second direction.
[0012] In combination with the first aspect and the above implementation methods, in some implementation methods of the first aspect, a second reflective surface step is provided between the third reflective surface and the second reflective surface, the second reflective surface step extends along the first direction, and the third reflective surface is an inclined surface inclined to the second reflective surface step.
[0013] In combination with the first aspect and the above-described implementation, in some implementations of the first aspect, the inner lens of the light source is provided with multiple rows of light integration portions along the second direction.
[0014] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the third direction is inclined to the second direction, the inner lens of the light source has an inclined light-emitting surface, the reflecting surface forms multiple steps along the third direction, and the multiple steps are equidistant from the light-emitting surface along the second direction.
[0015] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the reflective surface is a total reflection surface, and the light-emitting surface is provided with concave or convex light-expanding textures.
[0016] In a second aspect, a light source assembly includes a light source, a housing, and an inner lens of the light source as described in any implementation of the first aspect, wherein the light source is disposed facing the light-incident groove, and the housing has a light-transmitting area disposed at a position corresponding to the light-emitting surface.
[0017] Thirdly, a vehicle lamp comprising a light source assembly as described in any implementation of the second aspect.
[0018] One of the above technical solutions has at least one of the following advantages or beneficial effects: In the technical solution of this utility model, the light reflecting part of the inner lens of the light source has a first light emitting surface and a second light emitting surface. The first light emitting surface and the second light emitting surface are distributed at intervals along the first direction, so that the light rays introduced by the light integrating part along the first direction can be split and reflected to the first light emitting surface and the second light emitting surface respectively, thereby forming the light emission effect of multiple parallel light emitting strips. This utility model can improve the light efficiency utilization rate, reduce the number of LEDs used, reduce costs, and improve the marketability of the product.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0021] Figure 1 This is a schematic diagram of the optical path of one embodiment of the light source assembly of this utility model;
[0022] Figure 2 yes Figure 1 The diagram shown is a schematic representation of the light-emitting surface of the embodiment.
[0023] Figure 3 This is a schematic diagram of the optical path of another embodiment of the light source assembly of this utility model;
[0024] Figure 4 yes Figure 3 The diagram shown is a schematic representation of the light-emitting surface of the embodiment.
[0025] Figure 5 This is a schematic diagram of the reflective surface of an embodiment of the light source assembly of this utility model;
[0026] Figure 6 yes Figure 5 Cross-sectional view at point AA. Detailed Implementation
[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0028] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0029] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.
[0030] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.
[0031] in, Figures 1-6 The reference direction coordinate system of the present invention is given, and the embodiments of the present invention will be described below.
[0032] See Figure 1This utility model provides an inner lens 100 for a light source. The inner lens 100 is made of a light-transmitting material and includes a light-integrating part 101 and a light-reflecting part 102. The light-integrating part 101 and the light-reflecting part 102 can be connected as a whole by two separate components, or they can be divided into two parts by a virtual surface. The light-integrating part 101 extends and protrudes from the light-reflecting part 102 along a first direction, and has a light-entry groove 103 at the protruding end. The light-integrating part 101 has a reflective outer wall surface and is used to reflect light entering through the light-entry groove 103. Light rays are guided into the light reflecting section 102 along a first direction. The light reflecting section 102 has a reflecting surface and a light emitting surface. The light emitting surface includes a first light emitting surface 104 and a second light emitting surface 105 spaced apart along the first direction. The reflecting surface includes a first reflecting surface 106 and a second reflecting surface 107, which are spaced apart along the first direction. The first reflecting surface 106 reflects the light rays entering from the light integrating section 101 along the first direction to the first light emitting surface 104 along the second direction. The second reflecting surface 107 reflects the light rays entering from the light integrating section 101 along the first direction to the second light emitting surface 105 along the second direction. Light rays entering from the light entrance groove 103 first pass through the light integrating section 101 for parallel light integration, then enter the light reflecting section 102. In the light entrance reflection section 102, the light rays are reflected by the reflecting surface and finally emitted from the light emitting surface.
[0033] Combination Figure 1 , Figure 2 In the technical solution of this utility model, the light reflecting part 102 of the inner lens 100 of the light source has a first light emitting surface 104 and a second light emitting surface 105. The first light emitting surface 104 and the second light emitting surface 105 are distributed at intervals along a first direction, so that the light rays introduced by the light integrating part 101 along the first direction can be split and reflected to the first light emitting surface 104 and the second light emitting surface 105 respectively, thereby forming a light emission effect of multiple parallel light emitting strips. This utility model can improve the light efficiency utilization rate, reduce the number of LEDs used, reduce costs, and improve the marketability of the product.
[0034] In some embodiments, see Figure 1 A first reflective surface step 108 is provided between the first reflective surface 106 and the second reflective surface 107. The first reflective surface step 108 extends along a first direction. The first reflective surface 106 and the second reflective surface 107 are inclined surfaces that are inclined to the first reflective surface step 108. The first reflective surface step 108 is parallel to the light introduced by the light integration part 101, so that the light introduced by the light integration part 101 will not be reflected to the light-emitting surface direction by the first reflective surface step 108. The light introduced by the light integration part 101 is reflected to different light-emitting surfaces by the inclined reflective surfaces that are staggered along the first direction, thereby forming the light-emitting effect of multiple parallel light-emitting strips.
[0035] In some embodiments, see Figure 2 The inner lens 100 of the light source extends a certain length along a third direction, and the light-emitting surface forms a strip-shaped light-emitting surface extending along a third direction. The inner lens 100 of the light source has multiple light-integrating parts 101, which are arranged along a third direction. The multiple light-integrating parts 101 are used to integrate the light from multiple arranged LED light sources and guide it into the light-reflecting part 102. The light from the multiple light-integrating parts 101 is reflected and spliced in the light-reflecting part 102 to form a continuous light strip along a third direction.
[0036] The light-emitting surface can have more than two light-emitting surfaces, for example, in some embodiments, see [reference needed]. Figure 3 , Figure 4 The light-emitting surface also includes a third light-emitting surface 109. The first light-emitting surface 104, the second light-emitting surface 105, and the third light-emitting surface 109 are distributed at intervals along a first direction. The reflective surface includes a third reflective surface 110, which is used to reflect the light rays incident from the light integration unit 101 along the first direction to the third light-emitting surface 109 along a second direction. In this embodiment, the third light-emitting surface 109 is provided outside of the first light-emitting surface 104 and the second light-emitting surface 105, thereby forming the light-emitting effect of three parallel light-emitting strips, further satisfying the application scenarios of three parallel light-emitting strips.
[0037] Further, see Figure 3 A second reflective surface step 111 is provided between the third reflective surface 110 and the second reflective surface 107. The second reflective surface step 111 extends along the first direction, and the third reflective surface 110 is an inclined surface inclined to the second reflective surface step 111. The second reflective surface step 111 has a similar function to the first reflective surface step 108. It does not participate in the reflection of light in the optical path. Its main purpose is to achieve the function of spacing between different reflective surfaces along the first direction. The light introduced by the light integration part 101 is reflected by the inclined reflective surfaces that are staggered along the first direction to different light-emitting surfaces, thereby forming the light-emitting effect of multiple parallel light-emitting strips.
[0038] In some embodiments, see Figure 3 The inner lens 100 of the light source is provided with multiple rows of light-integrating sections 101 along the second direction to meet the needs of more parallel light-emitting strips. Each row of light-integrating section 101 can correspond to a different reflecting surface, for example, in... Figure 3In the illustrated embodiment, the center of the first row of light-integrating parts 101 coincides with the first reflective surface step 108, and the light from the first row of light-integrating parts 101 is reflected by the first reflective surface 106 and the second reflective surface 107 to the first light-emitting surface 104 and the second light-emitting surface 105. Meanwhile, the center of the second row of light-integrating parts 101 coincides with the center point of the third reflective surface 110, and the light from the second row of light-integrating parts 101 is reflected by the third reflective surface 110 to the third light-emitting surface 109.
[0039] In some embodiments, see Figure 5 , Figure 6 The third direction is tilted relative to the second direction, and the lens 100 inside the light source has an tilted light-emitting surface. This embodiment is used to form a tilted light-emitting surface in a scenario. The reflective surface forms multiple steps along the third direction, and the distances from these multiple steps to the light-emitting surface along the second direction are equal. For example, in... Figure 6 In the process, the distances from multiple steps to the light-emitting surface are a, b, c, d, and e, respectively, where a = b = c = d = e, to ensure the uniformity of light emission.
[0040] In some embodiments, the reflective surface is a total reflective surface, which is formed by setting a concave or convex texture.
[0041] It is understandable that reflective surfaces can also be made into total reflective surfaces by applying coatings or other methods.
[0042] In some embodiments, the light-emitting surface has concave or convex light-diffusing textures to achieve the required emission angle to meet regulatory requirements and emission uniformity.
[0043] See Figure 1 , Figure 3 The embodiments of this utility model also provide a light source assembly, including a light source 200, a housing 300 and an inner lens 100 of the light source in any of the above embodiments. The light source 200 may be an LED lamp bead. The light source 200 is set directly opposite the light-incident groove 103. The housing 300 has a light-transmitting area set at the position corresponding to the light-emitting surface.
[0044] An embodiment of this utility model also provides a vehicle lamp, including the light source component in any of the above embodiments.
[0045] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0046] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A lens inside a light source, characterized in that, The device includes a light-integrating part and a light-reflecting part. The light-integrating part extends and protrudes from the light-reflecting part along a first direction, and has a light-entry groove at the protruding end. The light-integrating part has a reflective outer wall surface. The light-integrating part is used to guide light entering through the light-entry groove into the light-reflecting part along the first direction. The light-reflecting part has a reflective surface and a light-exiting surface. The light-exiting surface includes a first light-exiting surface and a second light-exiting surface that are spaced apart along the first direction. The reflective surface includes a first reflective surface and a second reflective surface that are spaced apart along the first direction. The first reflective surface is used to reflect light entering the light-integrating part along the first direction along the first direction to the first light-exiting surface along a second direction. The second reflective surface is used to reflect light entering the light-integrating part along the first direction along the second direction to the second light-exiting surface along the second direction.
2. The inner lens of the light source according to claim 1, characterized in that, A first reflective surface step is provided between the first reflective surface and the second reflective surface. The first reflective surface step extends along a first direction, and the first reflective surface and the second reflective surface are inclined surfaces inclined to the first reflective surface step.
3. The inner lens of the light source according to claim 1, characterized in that, The inner lens of the light source extends a certain length along a third direction, and the light-emitting surface forms a strip-shaped light-emitting surface extending along a third direction. The inner lens of the light source has multiple light-integrating parts, and the multiple light-integrating parts are arranged along a third direction.
4. The inner lens of the light source according to claim 3, characterized in that, The light-emitting surface further includes a third light-emitting surface. The first light-emitting surface, the second light-emitting surface, and the third light-emitting surface are distributed at intervals along a first direction. The reflective surface includes a third reflective surface, which is used to reflect the light rays incident from the light-integrating part along the first direction to the third light-emitting surface along the second direction.
5. The inner lens of the light source according to claim 4, characterized in that, A second reflective surface step is provided between the third reflective surface and the second reflective surface. The second reflective surface step extends along a first direction, and the third reflective surface is an inclined surface that is inclined to the second reflective surface step.
6. The inner lens of the light source according to claim 4, characterized in that, The inner lens of the light source has multiple rows of light integration sections along the second direction.
7. The inner lens of the light source according to claim 3, characterized in that, The third direction is inclined to the second direction, the inner lens of the light source has an inclined light-emitting surface, the reflective surface forms multiple steps along the third direction, and the multiple steps are equidistant from the light-emitting surface along the second direction.
8. The inner lens of the light source according to claim 1, characterized in that, The reflective surface is a total reflection surface, and the light-emitting surface is provided with concave or convex light-expanding textures.
9. A light source assembly, characterized in that, The device includes a light source, a housing, and an inner lens of the light source as described in any one of claims 1 to 8. The light source is positioned directly opposite the light-incident groove, and the housing has a light-transmitting area at a position corresponding to the light-out surface.
10. A vehicle light, characterized in that, Includes the light source assembly as described in claim 9.