Light guide component, optical module, vehicle lamp and vehicle

Abstract

The invention discloses a light guide component, an optical module, a vehicle lamp and a vehicle. The light guide component is provided with a light inlet face and a light outlet face which are oppositely arranged. The light incident surface is provided with first interval grooves, and the first interval grooves divide the light incident side of the light guide component into a plurality of light incident parts; the light-emitting surface is provided with second interval grooves, and the second interval grooves divide the light-emitting side of the light guide part into a plurality of light-emitting parts. The light inlet parts are configured to totally reflect incident light and emit the incident light to the light outlet parts, the light outlet parts are configured to receive the light emitted by the light inlet parts, totally reflect the light and emit the light, and the light inlet parts and the light outlet parts are in one-to-one correspondence. The light inlet parts and the light outlet parts are in one-to-one correspondence, light rays are totally reflected in the light inlet parts and the light outlet parts, that is, light ray interference does not occur between the adjacent light inlet parts and the adjacent light outlet parts, the improvement of the lightening effect is facilitated, the cost is low, the structure is simple, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle lighting technology, and in particular to a light guide component, an optical module, a vehicle lamp, and a vehicle. Background Art

[0002] As the automotive industry evolves toward intelligence and personalization, headlight design has evolved from a single-function focus to a core vehicle for aesthetic expression and brand value. While meeting basic lighting requirements, it also demands layered lighting effects and dynamic interactivity. Existing technologies often rely on complex mechanical structures or high-density LED arrays to achieve high-quality and personalized display requirements, resulting in high costs, complex structures, and poor mass production consistency.

[0003] Therefore, there is a need to improve the existing technology. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art and to provide a light-guiding component, an optical module, a headlight and a vehicle.

[0005] According to one aspect of the present application, the present application provides a light-guiding component, having a light-entry surface and a light-exiting surface arranged relatively to each other; the light-entry surface is provided with a first spacing groove, which separates the light-entry side of the light-guiding component into a plurality of light-entry portions; the light-exiting surface is provided with a second spacing groove, which separates the light-exiting side of the light-guiding component into a plurality of light-exiting portions; the light-entry portion is configured to totally reflect the incident light and emit it toward the light-exiting portion, and the light-exiting portion is configured to receive the light emitted from the light-entry portion, and totally reflect and emit the light, and the plurality of light-entry portions correspond one-to-one to the plurality of light-exiting portions.

[0006] In one embodiment, it includes a connecting portion, which is arranged between the light incident portion and the light emitting portion; the connecting portion, the light incident portion and the light emitting portion are arranged in one piece.

[0007] In one embodiment, in the main light emitting direction of the light guide component, the width of the first spacing grooves between adjacent light incident portions gradually decreases.

[0008] According to another aspect of the present application, an optical module is provided, comprising any of the aforementioned light-guiding components; the optical module further comprises a light source assembly, the light source assembly comprising a printed circuit board and a first bracket, the first bracket being arranged between the printed circuit board and the light incident portion; the first bracket being provided with a plurality of first light-transmitting through holes, the plurality of first light-transmitting through holes corresponding one-to-one to the plurality of light incident portions, the end of the light incident portion away from the light exit portion being accommodated in the first light-transmitting through hole, and the portions of the printed circuit board opposite to the first light-transmitting through holes being respectively provided with light-emitting units.

[0009] In one embodiment, in the main light emitting direction of the light guide component, the first spacing groove includes a first groove section and a second groove section in sequence, the first bracket is embedded in the first groove section, and the size of the first groove section is smaller than that of the second groove section.

[0010] In one embodiment, a second bracket is further included, wherein the second bracket is provided with a plurality of second light-transmitting through holes, the plurality of second light-transmitting through holes correspond one-to-one to the plurality of light-emitting portions, and the ends of the light-emitting portions away from the light-incoming portions are accommodated in the second light-transmitting through holes.

[0011] In one embodiment, a light evenly distributed member is further included, and the light evenly distributed member is arranged on the light emitting side of the light emitting portion; the light evenly distributed member includes a light evenly distributed portion and a third bracket, and the third bracket is arranged on a side of the light evenly distributed portion away from the light emitting portion; the third bracket is provided with a plurality of third light-transmitting through holes, and the plurality of third light-transmitting through holes correspond one-to-one to the plurality of light emitting portions.

[0012] In one embodiment, a dimming component is further included, and the dimming component is arranged on the light-emitting side of the light-emitting portion; and a chrome coating is applied on the side of the dimming component facing the light-emitting portion.

[0013] According to another aspect of the present application, a vehicle lamp is provided, comprising any of the aforementioned optical modules.

[0014] According to another aspect of the present application, a vehicle is provided, comprising the aforementioned vehicle lamp.

[0015] The beneficial effect of the present application is that: by setting the first spacing groove, the light entrance side of the light guide component is partitioned into multiple light entrance parts, and by setting the second spacing groove, the light exit side of the light guide component is partitioned into multiple light exit parts. The light entrance parts correspond to the light exit parts one by one, and the light is totally reflected in the light entrance parts and the light exit parts, that is, there will be no light interference between adjacent light entrance parts and adjacent light exit parts, which is conducive to improving the lighting effect, has low cost, simple structure, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0017] Figure 1 Schematic diagram of an optical module provided in an embodiment of the present application.

[0018] Figure 2 yes Figure 1 sectional view of .

[0019] Figure 3 This is an exploded view of an optical module provided in an embodiment of the present application.

[0020] In the picture:

[0021] 10. Light guide member; 11. Light entrance portion; 111. Photon entrance surface; 12. Light exit portion; 121. Photon exit surface; 13. First spacing groove; 131. First groove segment; 132. Second groove segment; 14. Second spacing groove; 15. Connecting portion;

[0022] 20. Light source assembly; 21. Printed circuit board; 211. Light-emitting unit; 22. First bracket; 221. First light-transmitting through hole;

[0023] 30. Second bracket; 31. Second light-transmitting through hole;

[0024] 40. Light-distributing member; 41. Light-distributing portion; 42. Third bracket; 421. Third light-transmitting through hole;

[0025] 50. Dimming components. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0028] The light guide component, optical module, headlight and vehicle in this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the existing technology, complex mechanical structures or high-density LED arrays are often relied upon to achieve high-quality and personalized display requirements, which have the disadvantages of high cost, complex structure and poor mass production consistency.

[0030] To solve the above technical problems, an embodiment of the present application provides a light-guiding component having a light-entry surface and a light-exiting surface arranged opposite to each other; the light-entry surface is provided with a first spacing groove, which divides the light-entry side of the light-guiding component into a plurality of light-entry portions; the light-exiting surface is provided with a second spacing groove, which divides the light-exiting side of the light-guiding component into a plurality of light-exiting portions; the light-entry portion is configured to totally reflect incident light and emit it toward the light-exiting portion, and the light-exiting portion is configured to receive light emitted from the light-entry portion, totally reflect the light, and emit it, with the plurality of light-entry portions corresponding to the plurality of light-exiting portions in a one-to-one manner. This is explained in detail below.

[0031] See Figure 1-3 The light-guiding component 10 has a light-entry surface and a light-emitting surface that are relatively arranged; the light-entry surface is provided with a first spacing groove 13, and the first spacing groove 13 partitions the light-entry side of the light-guiding component 10 into a plurality of light-entry portions 11; the light-emitting surface is provided with a second spacing groove 14, and the second spacing groove 14 partitions the light-emitting side of the light-guiding component 10 into a plurality of light-emitting portions 12; the light-entry portion 11 is configured to totally reflect the incident light and emit it toward the light-emitting portion 12, and the light-emitting portion 12 is configured to receive the light emitted by the light-entry portion 11, and totally reflect and emit the light, and the plurality of light-entry portions 11 correspond one to one to the plurality of light-emitting portions 12.

[0032] By setting the first spacing groove 13, the light entrance side of the light guide component 10 is partitioned into multiple light entrance portions 11, that is, the multiple light entrance portions 11 are spaced apart from each other. By setting the second spacing groove 14, the light exit side of the light guide component 10 is partitioned into multiple light exit portions 12, that is, the multiple light exit portions 12 are spaced apart from each other. The light entrance portions 11 correspond to the light exit portions 12 one by one, that is, the light entering from one of the light entrance portions 11 passes through the light entrance portion 11, and is emitted into the light exit portion 12 corresponding to the light entrance portion 11, and is finally emitted. The light is totally reflected in the light entrance portion 11 and the light exit portion 12, that is, there is no light interference between adjacent light entrance portions 11 and adjacent light exit portions 12, which is beneficial to improving the lighting effect.

[0033] For the sake of convenience, a light input portion 11 and a light output portion 12 corresponding to the light input portion 11 are recorded as a group of light channels. The light-guiding component 10 has multiple independent and non-interfering light channels. In some embodiments, the light in each light channel can be controlled to achieve different lighting effects, thereby improving dynamic interactivity.

[0034] It is worth mentioning that each light entrance portion 11 has a photon entrance surface 111, and the light entrance surface of the light-guiding component 10 includes multiple photon entrance surfaces 111. In some embodiments, one photon entrance surface 111 can correspond to one light source (which can be a single lamp bead, multiple lamp beads, etc.), and the brightness and light color of the light source can be independently controlled, thereby improving the interactive performance, and adjacent photon entrance surfaces 111 are separated by a first spacing groove 13, thereby avoiding the high-density arrangement of light sources required for adjacent light entrance portions 11, avoiding heat concentration, and improving service life.

[0035] At the same time, each light-emitting portion 12 has a photon-emitting surface 121, and the light-emitting surface of the light-guiding component 10 includes multiple photon-emitting surfaces 121; different lighting effects can be achieved according to the shape of the photon-emitting surface 121. For example, in some embodiments, the light-emitting surface of the light-guiding component 10 is divided into multiple photon-emitting surfaces 121 similar to a diamond effect through the setting of the second spacing groove 14, that is, the light-guiding component 10 can achieve a lighting effect similar to a diamond. In some embodiments, other shapes can also be set. The shape and size of each photon-emitting surface 121 can be the same or different, and relevant settings are made according to actual lighting requirements, but are not limited to this.

[0036] It should be noted that the total reflection of the light when passing through the light incident portion 11 is the total reflection of the light when the light incident portion 11 is reflected by the light in the main light emitting direction of the light guide component 10 (such as Figure 2 Total reflection occurs on the side wall (as shown in the middle direction X, the same below), and the light will not be emitted from the light entrance part 11, thereby avoiding mutual interference between adjacent light entrance parts 11. The light exit part 12 is similar to this and will not be repeated here.

[0037] In some embodiments, the light guide component 10 includes a connecting portion 15 , which is disposed between the light incident portion 11 and the light emitting portion 12 ; the connecting portion 15 , the light incident portion 11 , and the light emitting portion 12 are integrally formed.

[0038] The connecting portion 15, the light input portion 11 and the light output portion 12 are integrally arranged, that is, the light guide component 10 is integrally arranged, and the light guide component 10 can be processed and formed by injection molding or other methods, thereby reducing production costs and processing difficulty; the integrated arrangement avoids an excessive number of parts (multiple light input portions 11, multiple light output portions 12), which is beneficial to improving the processing accuracy of the light guide component 10 and achieving good mass production consistency.

[0039] In some embodiments, in the main light-emitting direction of the light-guiding component 10 , the width of the first spacing grooves 13 between adjacent light-incident portions 11 gradually decreases.

[0040] The first spacing grooves 13 between adjacent light incident portions 11 are wide on the left and narrow on the right (eg Figure 2The arrangement shown in the figure facilitates demoulding of the light input portion 11 during injection molding, avoids damage to the light input portion 11 by the mold, and improves the processing quality of the light guide component 10.

[0041] It is worth mentioning that the second spacing groove 14 between adjacent light-emitting parts 12 can also be similarly arranged. Since the light-emitting part 12 and the light-incoming part 11 are arranged on both sides of the connecting part 15, their demolding directions are inconsistent, that is, the second spacing groove 14 is narrow on the left and wide on the right.

[0042] On the other hand, the present application also relates to an optical module, comprising any one of the aforementioned light-guiding components 10; the optical module also includes a light source assembly 20, the light source assembly 20 includes a printed circuit board 21 and a first bracket 22, the first bracket 22 is arranged between the printed circuit board 21 and the light input portion 11; the first bracket 22 is provided with a plurality of first light-transmitting through holes 221, the plurality of first light-transmitting through holes 221 correspond one-to-one to the plurality of light input portions 11, the end of the light input portion 11 away from the light output portion 12 is accommodated in the first light-transmitting through hole 221, and the parts of the printed circuit board 21 opposite to the first light-transmitting through holes 221 are respectively provided with light-emitting units 211.

[0043] Each first light-transmitting through hole 221 is provided with a light-emitting unit 211 and a light-entry portion 11 at its two ends in the axial direction (the first light-transmitting through hole 221). The first light-transmitting through hole 221 is equivalent to a light propagation channel, which guides the light emitted by the light-emitting unit 211 to the corresponding light-entry portion 11; by the arrangement of the first light-transmitting through hole 221 on the first bracket 22, multiple light-emitting units 211 are separated, thereby avoiding mutual interference of light between light-emitting units 211 in different areas (areas on the printed circuit board 21 opposite to different first light-transmitting through holes 221); at the same time, the end of the light-entry portion 11 away from the light-emitting portion 12 (i.e., the photon-entry surface 111) is accommodated in the first light-transmitting through hole 221, and adjacent photon-entry surfaces 111 are also separated by the first bracket 22 (first light-transmitting through hole 221), i.e., the light entering the light-entry portion 11 will not interfere with each other, thereby avoiding cross-lighting, which is beneficial to improving the lighting effect.

[0044] It should be noted that, in some embodiments, the light-emitting unit 211 can be composed of one or more lamp beads, that is, a first light-transmitting hole 221 can receive light emitted by one or more lamp beads, which is determined according to the area of ​​the photon incident surface 111, lighting requirements, etc.; in addition, the lamp beads can be a combination of one color or multiple colors, which is conducive to improving the diversity of the display.

[0045] In some embodiments, in the main light emitting direction of the light guide component 10, the first spacing groove 13 includes a first groove section 131 and a second groove section 132 in sequence, the first bracket 22 is embedded in the first groove section 131, and the size of the first groove section 131 is smaller than that of the second groove section 132.

[0046] In some embodiments, the first spacing groove 13 is set to be wider on the left and narrower on the right (see the previous embodiment for details, which will not be repeated here). The shape design of the first spacing groove 13 can limit the depth of the first bracket 22 (the dimension in the main light-emitting direction). When the first bracket 22 is embedded in the first groove section 131, it can be clamped with the first bracket 22 through the first groove section 131 to limit the relative position between the first bracket 22 and the light incident part 11, which is conducive to improving the assembly accuracy and reducing the assembly difficulty.

[0047] In addition, in the main light-emitting direction of the light-guiding component 10, the size of the second slot section 132 is larger than that of the first slot section 131, that is, the light-guiding component 10 has a longer light entrance portion 11, which provides sufficient length for the propagation of light. The light is more uniform after total reflection in the light entrance portion 11, which is beneficial to improving the uniformity after lighting.

[0048] In some embodiments, the optical module also includes a second bracket 30, which is provided with multiple second light-transmitting holes 31. The multiple second light-transmitting holes 31 correspond one-to-one to the multiple light-emitting portions 12, and the end of the light-emitting portion 12 away from the light-incoming portion 11 is accommodated in the second light-transmitting hole 31.

[0049] The second light-transmitting through hole 31 is similar to the first light-transmitting through hole 221, and is equivalent to a light propagation channel, which guides the light emitted from the light-emitting portion 12 to be emitted. Through the arrangement of the second bracket 30 and the second light-transmitting through hole 31, the ends of the multiple light-emitting portions 12 away from the light-input portion 11 (i.e., the photon-emitting surface 121) are spaced apart, and the light emitted from each photon-emitting surface 121 will not interfere with each other, thereby avoiding cross-lighting and being beneficial to improving the lighting effect.

[0050] In some embodiments, the optical module also includes a light uniforming member 40, which is arranged on the light output side of the light output portion 12; the light uniforming member 40 includes a light uniforming portion 41 and a third bracket 42, and the third bracket 42 is arranged on the side of the light uniforming portion 41 away from the light output portion 12; the third bracket 42 is provided with a plurality of third light-transmitting through holes 421, and the plurality of third light-transmitting through holes 421 correspond one-to-one to the plurality of light output portions 12.

[0051] In this embodiment, the third bracket 42 is arranged on the light-emitting side of the light-evening portion 41, which will not affect the entry of the positive rays on the light-incident side of the light-evening portion 41, and is conducive to better homogenization of the light. The homogenized light is emitted through the third light-transmitting through hole 421. The function of the third light-transmitting through hole 421 is similar to that of the first light-transmitting through hole 221 and the second light-transmitting through hole 31. It can separate the light and avoid cross-light, and can achieve different display effects according to the shape of the third light-transmitting through hole 421. It will not be repeated here. See the aforementioned embodiment for details.

[0052] In some embodiments, the optical module further includes a dimming component 50 , which is disposed on the light-emitting side of the light-emitting portion 12 ; a chrome coating is applied on the side of the dimming component 50 facing the light-emitting portion 12 .

[0053] By setting the chrome plating layer, the internal structure of the optical system can be effectively prevented from being visible, thereby improving the appearance.

[0054] It is worth mentioning that in some embodiments, the side of the dimming component 50 away from the light emitting portion 12 is composed of multiple sub-surfaces, and each sub-surface corresponds one-to-one to the light emitting portion 12. The size, shape, angle between adjacent sub-surfaces, etc. of the sub-surface are adjusted according to different display requirements.

[0055] On the other hand, the present application also relates to a vehicle lamp comprising any one of the aforementioned optical modules.

[0056] On the other hand, the present application also relates to a vehicle comprising the aforementioned vehicle lamp.

[0057] The technical solution provided in the embodiment of the present application is intended to partition the light entrance side of the light guide component 10 into a plurality of light entrance portions 11 by setting the first spacing groove 13, and partition the light exit side of the light guide component 10 into a plurality of light exit portions 12 by setting the second spacing groove 14. The light entrance portions 11 correspond to the light exit portions 12 one-to-one, and light is totally reflected in the light entrance portions 11 and the light exit portions 12, that is, there will be no light interference between adjacent light entrance portions 11 and adjacent light exit portions 12, which is conducive to improving the lighting effect, has low cost, simple structure, and reduces production costs.

[0058] In the various embodiments of this application, unless otherwise specified or logically conflicting, the terms or descriptions between different embodiments are consistent and can be referenced from each other. The technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships. In this application, "at least one" means one or more, and "more" means two or more.

[0059] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

[0060] The above is a detailed introduction to the light-guiding components, optical modules, headlights and vehicles provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A light guide component, characterized in that: Having a light incident surface and a light emitting surface arranged oppositely; The light incident surface is provided with a first spacing groove, and the first spacing groove divides the light incident side of the light guide component into a plurality of light incident portions; The light emitting surface is provided with a second spacing groove, and the second spacing groove divides the light emitting side of the light guide component into a plurality of light emitting parts; The light input portion is configured to totally reflect the incident light and emit it toward the light output portion, and the light output portion is configured to receive the light emitted from the light input portion, totally reflect the light and emit it, and the multiple light input portions correspond one to one to the multiple light output portions.

2. The light guide component according to claim 1, wherein It comprises a connecting portion, which is arranged between the light incident portion and the light emitting portion; the connecting portion, the light incident portion and the light emitting portion are arranged in one piece.

3. The light guide component according to claim 2, wherein In the main light emitting direction of the light guide component, the width of the first spacing grooves between adjacent light incident portions gradually decreases.

4. An optical module, characterized in that: The optical module further comprises a light guide component according to any one of claims 1 to 3; the optical module further comprises a light source assembly, the light source assembly comprises a printed circuit board and a first bracket, the first bracket being arranged between the printed circuit board and the light incident portion; The first bracket is provided with a plurality of first light-transmitting through holes, and the plurality of first light-transmitting through holes correspond one-to-one to the plurality of light-entering parts. The ends of the light-entering parts away from the light-emitting parts are accommodated in the first light-transmitting through holes, and the parts of the printed circuit board opposite to the first light-transmitting through holes are respectively provided with light-emitting units.

5. The optical module according to claim 4, wherein: In the main light emitting direction of the light guide component, the first spacing groove includes a first groove section and a second groove section in sequence, the first bracket is embedded in the first groove section, and the size of the first groove section is smaller than that of the second groove section.

6. The optical module according to claim 4, wherein: It also includes a second bracket, which is provided with a plurality of second light-transmitting through holes. The plurality of second light-transmitting through holes correspond one-to-one to the plurality of light-emitting portions, and the ends of the light-emitting portions away from the light-incident portions are accommodated in the second light-transmitting through holes.

7. The optical module according to claim 4, wherein: It also includes a light evenly distributed member, which is arranged on the light output side of the light output portion; The light evenly distributed component includes a light evenly distributed portion and a third bracket, wherein the third bracket is arranged on a side of the light evenly distributed portion away from the light emitting portion; the third bracket is provided with a plurality of third light-transmitting through holes, and the plurality of third light-transmitting through holes correspond one-to-one to the plurality of light emitting portions.

8. The optical module according to claim 4, wherein: It also includes a dimming component, which is arranged on the light-emitting side of the light-emitting portion; A chrome coating is applied on a side of the dimming component facing the light emitting portion.

9. A vehicle lamp, characterized in that: The optical module comprises the optical module according to any one of claims 4 to 8.

10. A vehicle, characterized in that: Comprising the vehicle light as claimed in claim 9.

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