Light-emitting structure, vehicle lamp and vehicle
By designing an optical structure with a reflective zone and a thick-walled light guide on the light-incident body, the problems of optical overlap and high power requirements caused by the small spacing between the light-emitting lamps were solved, thereby improving brightness uniformity and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-10
Smart Images
Figure CN223985081U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive lighting equipment technology, and in particular to a light-emitting structure, an automotive lamp, and a vehicle. Background Technology
[0002] With the development of automotive lighting technology, diverse dynamic lighting designs are receiving increasing attention. In related technologies, to achieve dynamic display effects, multiple LEDs are typically designed, with a corresponding concentrator on a thick wall. As the size of the light-emitting surface is compressed smaller and smaller, the spacing between the LEDs is also becoming increasingly smaller to accommodate multiple LEDs and concentrators with the shrinking surface. However, this smaller spacing can prevent the LEDs from being placed at the focal point of the optical structure, or, even when ensuring the LEDs are at the focal point, the optical structure may overlap due to the excessively small spacing. This necessitates higher power sources and significantly increases costs. Utility Model Content
[0003] This application provides a light-emitting structure, a vehicle lamp, and a vehicle to address the problem in related technologies where the spacing between light-emitting lamps is too small, causing the lamps to be unable to be placed at the focal point of the optical structure, or where the optical structures overlap due to excessive spacing when the lamps are placed at the focal point. This results in the need for higher light source power and significantly increased costs.
[0004] Firstly, a light-emitting structure is provided, comprising:
[0005] The light-emitting component includes a first light-emitting group and a second light-emitting group. The first light-emitting group includes a first light-emitting lamp, and the second light-emitting group includes a second light-emitting lamp. The first light-emitting group and the second light-emitting group have different light functions.
[0006] A thick-walled light guide has an optical surface and a light-emitting surface. The optical surface is located on the light-emitting side of the first light-emitting group and is disposed corresponding to the first light-emitting group. It is used to receive the first light emitted by the first light-emitting group and transmit it to the light-emitting surface so that the first light is emitted from the light-emitting surface; and...
[0007] The light-incident body is located on the light-emitting side of the second light-emitting group and is disposed corresponding to the second light-emitting group. The light-incident body has a light-incident surface, which includes at least two reflective areas that are spaced apart along the light-emitting direction of the second light-emitting group. The reflective areas are inclined toward the second light-emitting group and are used to receive the second light emitted by the second light-emitting group and reflect it to the optical surface, so that the second light enters the thick-walled light guide through the optical surface and exits from the light-emitting surface.
[0008] The light-emitting structure of this application embodiment is designed with a light-incident surface including a reflective area. The reflective area is tilted toward the second light-emitting group, which can make the incident angle of more second light rays reaching the reflective area greater than the critical angle, thereby enabling total internal reflection at the reflective area and reducing light loss.
[0009] The aforementioned design ensures that the extension direction of the reflective zone aligns with the distribution direction of the second light-emitting lamps within the second light-emitting group. This facilitates the reflective zone receiving the second light emitted by all the second light-emitting lamps. Furthermore, it guarantees that the brightness of various parts of the light-emitting surface is approximately uniform in the first direction, thus improving lighting performance.
[0010] In some embodiments, the optical surface includes a first surface and a second surface.
[0011] The first surface is tilted toward the first light-emitting group and is used to receive the first light emitted by the first light-emitting group and transmit it to the light-emitting surface.
[0012] Along the light-emitting direction of the reflective area, the second side is set corresponding to the reflective area to receive the second light emitted from the reflective area and transmit it to the thick-walled light guide body.
[0013] Based on the above embodiments, the first surface is tilted towards the first light-emitting group, which can make the incident angle of more first rays reaching the first surface greater than the critical angle, thereby enabling total internal reflection at the first surface and reducing light loss.
[0014] In some embodiments, the second surface extends along the first direction.
[0015] Based on the above embodiments, the extension direction of the second surface is consistent with the distribution direction of the second light-emitting lamps in the second light-emitting group, which is beneficial for the second surface to receive the second light emitted by all the second light-emitting lamps.
[0016] In some embodiments, the light-incident surface includes at least two reflective regions spaced apart along the light-emitting direction of the second light-emitting group and a connecting region connecting two adjacent reflective regions, wherein the connecting region and the reflective regions are arranged at an angle.
[0017] Based on the above embodiments, the more reflective areas there are, the denser the distribution of the reflective areas, and the smaller the interval between two adjacent reflective areas, the better the uniformity of the light effect of the light-emitting surface. It can be achieved that when the light effect on the light-emitting surface is observed with the naked eye, the dark area effect on the light-emitting surface cannot be perceived.
[0018] In some embodiments, the optical surface includes at least two second surfaces, each corresponding to one of at least two reflective areas.
[0019] In some embodiments, the incident surface is close to the thick-walled light guide along the light emission direction of the reflective region.
[0020] In some embodiments, the light-emitting element includes at least two second light-emitting groups, which are distributed at intervals from the first light-emitting group along a preset direction, and the at least two second light-emitting groups are located on the same side of the first light-emitting group along the preset direction, and the different light-emitting groups have different light functions.
[0021] Based on the above embodiments, the more light-emitting groups there are, the richer the dynamic display effect of the light-emitting structure.
[0022] In some embodiments, the light-emitting structure includes at least two light-incident elements, and the at least two light-incident elements are arranged in a one-to-one correspondence with at least two second light-emitting groups;
[0023] Along the light-emitting direction of the reflection zone, the reflection zones of different incident light bodies are staggered and correspond to different areas of the second surface.
[0024] Based on the above embodiments, it is possible to achieve misalignment of light rays when different light-emitting groups are lit.
[0025] In some embodiments, the thick-walled light guide also has a reflective surface, which is disposed opposite to the light-emitting surface along a second direction, wherein the second direction is along the length direction of the thick-walled light guide;
[0026] The reflective surface is used to receive the first and second rays output from the optical surface and reflect them back to the light-emitting surface.
[0027] Based on the above embodiments, the arrangement of the reflective surface can achieve optical path deflection, which is beneficial for compressing the size of the light-emitting structure in the second direction.
[0028] In some embodiments, the optical surface and the light-emitting surface are arranged opposite each other along a second direction, wherein the second direction is along the length direction of the thick-walled light guide.
[0029] Based on the above embodiments, it is beneficial to simplify the structure of thick-walled light guides.
[0030] In some embodiments, the first light-emitting group and the second light-emitting group are located on the same side of the light-emitting body along the extension direction of the light-emitting body.
[0031] Based on the above embodiments, it is advantageous to achieve optical alignment operation on the same side of the light-incident body.
[0032] In some embodiments, the light-emitting element further includes:
[0033] The first circuit board, the first light-emitting group and the second light-emitting group are mounted on the same side of the first circuit board and are all electrically connected to the first circuit board.
[0034] Based on the above embodiments, the integration of the circuit board can be improved, the number of circuit boards used can be reduced, and the soldering process between circuit boards can be reduced, while achieving the dynamic display effect of the light-emitting structure.
[0035] In some embodiments, the first light-emitting group and the second light-emitting group are located on opposite sides of the light-emitting body along the extension direction of the light-emitting body.
[0036] Based on the above embodiments, the first light-emitting group and the second light-emitting group can be more dispersed, which is beneficial for heat dissipation.
[0037] In some embodiments, the light-emitting element further includes:
[0038] The second circuit board, the first light-emitting group is mounted on the second circuit board and electrically connected to the second circuit board;
[0039] The third circuit board, the second light-emitting group is mounted on the third circuit board and electrically connected to the third circuit board.
[0040] Based on the above embodiments, heat dissipation is facilitated.
[0041] In some embodiments, it also includes:
[0042] The first light-concentrating body is connected to the thick-walled light guide. The first light-concentrating body is located on the light-emitting side of the first light-emitting group and is used to receive the first light and transmit it to the thick-walled light guide.
[0043] The second light-concentrating body is connected to the incident light body and is located on the light-emitting side of the second light-emitting group. It is used to receive the second light rays and transmit them to the incident light body.
[0044] Based on the above embodiments, the first light emitted by the first light-emitting group is focused by the first light-concentrating body, and the second light emitted by the second light-emitting group is focused by the second light-concentrating body. That is, the first light and the second light are focused by different light-concentrating structures. Compared with the related technology in which all the light emitted by the light-emitting lamps is focused by the light-concentrating part in the thick-walled light guide, the first light-emitting lamp in the first light-emitting group and the second light-emitting lamp in the second light-emitting group can be arranged more dispersedly, which is conducive to heat dissipation.
[0045] In some embodiments, the light incident body is connected to a thick-walled light guide.
[0046] Based on the above embodiments, the assembly process of the two components within the vehicle headlight is simplified.
[0047] Secondly, a vehicle lamp is provided, including the aforementioned light-emitting structure.
[0048] Thirdly, a vehicle is provided, including the aforementioned vehicle lights. Attached Figure Description
[0049] Figure 1 This is a three-dimensional structural schematic diagram of the light-emitting structure provided in the first embodiment of this application;
[0050] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the light-emitting structure.
[0051] Figure 3 yes Figure 1 The diagram shows the optical path of the light-emitting structure.
[0052] Figure 4 yes Figure 1 The diagram shown is a schematic representation of the light-emitting element in the light-emitting structure.
[0053] Figure 5 yes Figure 1 The schematic diagram of the light-emitting structure shown omits the light-emitting component;
[0054] Figure 6 This is a cross-sectional schematic diagram of the light-emitting structure provided in the second embodiment of this application;
[0055] Figure 7 yes Figure 6 The diagram shows the optical path of the light-emitting structure.
[0056] Figure 8 yes Figure 6 The schematic diagram of the light-emitting structure shown omits the light-emitting component;
[0057] Figure 9 This is a cross-sectional schematic diagram of the light-emitting structure provided in the third embodiment of this application;
[0058] Figure 10 yes Figure 9 The diagram shows the optical path of the light-emitting structure.
[0059] Figure 11 yes Figure 9 The schematic diagram of the light-emitting structure shown omits the light-emitting component;
[0060] Figure 12 This is a cross-sectional schematic diagram of the light-emitting structure provided in the fourth embodiment of this application;
[0061] Figure 13 yes Figure 12 The diagram shows the optical path of the light-emitting structure.
[0062] Figure 14 yes Figure 12 The schematic diagram of the light-emitting structure shown omits the light-emitting component;
[0063] Figure 15 This is a cross-sectional schematic diagram of the light-emitting structure provided in the fifth embodiment of this application;
[0064] Figure 16 yes Figure 15 The diagram shows the optical path of the light-emitting structure.
[0065] Figure 17 yes Figure 15 The schematic diagram of the light-emitting structure shown omits the light-emitting component;
[0066] Figure 18 This is a cross-sectional schematic diagram of the light-emitting structure provided in the fifth embodiment of this application;
[0067] Figure 19 yes Figure 18 The diagram shows the optical path of the light-emitting structure.
[0068] Figure 20 yes Figure 18 The schematic diagram shown omits the light-emitting element in the light-emitting structure.
[0069] Explanation of reference numerals in the attached figures:
[0070] 1. Light-emitting structure;
[0071] 10. Light-emitting component; 11. First light-emitting group; 111. First light-emitting lamp; 12. Second light-emitting group; 121. Second light-emitting lamp; 13a. First circuit board; 131. First surface; 132. Second surface; 13b. Second circuit board; 13c. Third circuit board;
[0072] 20. Thick-walled light guide; 21. Optical surface; 211. First surface; 212. Second surface; 22. Light-emitting surface; 23. Reflecting surface;
[0073] 30. Announcement body; 31. Announcement surface; 311. Reflection zone; 312. Connecting zone;
[0074] 40. First light-concentrating element; 41. First light-concentrating section;
[0075] 50. Second light-concentrating element; 51. Second light-concentrating section;
[0076] x, first direction; y, second direction; z, third direction. Detailed Implementation
[0077] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.
[0078] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0079] Example 1
[0080] See Figures 1 to 5 The light-emitting structure 1 provided in this application includes a light-emitting element 10, a thick-walled light guide 20, and a light-incident element 30.
[0081] The light-emitting element 10 includes a first light-emitting group 11 and a second light-emitting group 12. The first light-emitting group 11 includes a first light-emitting lamp 111, and the second light-emitting group 12 includes at least two second light-emitting lamps 121 spaced apart along a first direction x. The first light-emitting group 11 and the second light-emitting group 12 have different light functions. The thick-walled light guide 20 has an optical surface 21 and a light-emitting surface 22. The optical surface 21 is located on the light-emitting side of the first light-emitting group 11 and is disposed corresponding to the first light-emitting group 11. It is used to receive the first light emitted by the first light-emitting group 11 and transmit it to the light-emitting surface 22 so that the first light is emitted through the light-emitting surface 22. The light-incident body 30 is located on the light-emitting side of the second light-emitting group 12 and is disposed corresponding to the second light-emitting group 12. The light-incident body 30 has a light-incident surface 31, which includes a reflective area 311 extending along the first direction x. The reflective area 311 is inclined toward the second light-emitting group 12. The reflective area 311 is used to receive the second light emitted by the second light-emitting group 12 and reflect it to the optical surface 21, so that the second light enters the thick-walled light guide 20 through the optical surface 21 and is emitted from the light-emitting surface 22.
[0082] The first light-emitting group 11 and the second light-emitting group 12 in the above design have different light functions, wherein the light function may include at least one of the following: light emission color and light emission brightness; thus, the lighting effect when the first light-emitting group 11 is lit is different from the lighting effect when the second light-emitting group 12 is lit, which can realize the dynamic display effect of the light-emitting structure 1.
[0083] For example, the first light-emitting group 11 and the second light-emitting group 12 may have different light-emitting colors: the first light-emitting group 11 emits red light when lit, and the second light-emitting group 12 emits yellow light when lit. For example, the first light-emitting group 11 and the second light-emitting group 12 may have different light-emitting brightness: the brightness of the first light-emitting group 11 when lit is higher than the brightness of the second light-emitting group 12 when lit.
[0084] In the above design, the second light-emitting group 12 is reflected into the thick-walled light guide 20 through the reflection area 311 of the light-incident body 30. Compared with the related technologies where different light-emitting groups all correspond to thick-walled light guides, the distance between the first light-emitting group 11 and the second light-emitting group 12 can be increased, so that the arrangement space of the light-gathering structure of the two is larger and can be set at the focal point of the light-gathering structure.
[0085] The light-incident surface 31 of the aforementioned light-incident body 30 includes a reflective region 311. The reflective region 311 is inclined toward the second light-emitting group 12, which allows more of the second light rays to reach the reflective region 311 at an incident angle greater than the critical angle, thereby enabling total internal reflection at the reflective region 311 and reducing light loss. The inclination angle of the reflective region 311 toward the second light-emitting group 12 can be determined based on factors such as the refractive index of the light-incident body 30, and is not limited thereto.
[0086] The aforementioned design extends the reflective area 311 along the first direction x. That is, the extension direction of the reflective area 311 is consistent with the distribution direction of the second light-emitting lamps 121 within the second light-emitting group 12. This facilitates the reflective area 311 receiving and reflecting the second light emitted by all the second light-emitting lamps 121. Furthermore, it ensures that the brightness of each part of the light-emitting surface 22 is approximately uniform along the first direction x, thus improving lighting performance.
[0087] Next, see Figures 1 to 5 The light-emitting element 10 is described in detail.
[0088] The first light-emitting group 11 includes at least two first light-emitting lamps 111 spaced apart along the first direction x. It is understood that for the same light-emitting surface 22, the more first light-emitting lamps 111 there are, the more beneficial it is to achieve a brighter overall lighting effect and reduce dark areas.
[0089] In some embodiments, the first light-emitting group 11 includes at least three first light-emitting lamps 111 that are equally spaced along the first direction x. Thus, when all the first light-emitting lamps 111 are lit, the light distribution is more uniform, which is beneficial to improving the uniformity of the light output surface 22.
[0090] It is understood that if the first light-emitting group 11 includes at least two first light-emitting lamps 111, the operating modes of the first light-emitting group 11 may include: all the first light-emitting lamps 111 in the first light-emitting group 11 are lit, or some of the first light-emitting lamps 111 in the first light-emitting group 11 are lit while the remaining first light-emitting lamps 111 are not lit. The operating modes of the first light-emitting group 11 can be flexibly adjusted according to the usage requirements, and there are no limitations on this.
[0091] The first light, 111, is an LED light. LED lights have the advantages of being energy-efficient, having a long lifespan, and being miniaturized.
[0092] The first light-emitting group 11 includes monochrome LEDs. Monochrome LEDs emit light of a single color, exhibiting high color consistency, stable luminous efficacy, uniform brightness, and low power consumption. The first light-emitting group 11 also includes multicolor LEDs. Multicolor LEDs can meet diverse color requirements. The first light-emitting group 11 can include both monochrome and multicolor LEDs; that is, some of the first light-emitting lamps 111 within the first light-emitting group 11 may use monochrome LEDs, while others may use multicolor LEDs, allowing for the superposition of these LEDs to achieve richer colors. The multicolor LEDs can be either dual-color or tri-color LEDs.
[0093] The second light-emitting group 12 includes at least two second light-emitting lamps 121 spaced apart along the first direction x. It is understood that for the same light-emitting surface 22, the more second light-emitting lamps 121 there are, the more beneficial it is to achieve a brighter overall lighting effect and reduce dark areas.
[0094] In some embodiments, the second light-emitting group 12 includes at least three second light-emitting lamps 121 that are equally spaced along the first direction x. Thus, when all the second light-emitting lamps 121 are lit, the light distribution is more uniform, which is beneficial to improving the uniformity of the light output surface 22.
[0095] It is understood that if the second light-emitting group 12 includes at least two second light-emitting lamps 121, the operating modes of the second light-emitting group 12 may include: all the second light-emitting lamps 121 in the second light-emitting group 12 are lit, or some of the second light-emitting lamps 121 in the second light-emitting group 12 are lit while the remaining second light-emitting lamps 121 are not lit. The operating modes of the second light-emitting group 12 can be flexibly adjusted according to the usage requirements, and there are no limitations on this.
[0096] If the first light-emitting group 11 includes at least two first light-emitting lamps 111 distributed at intervals along the first direction x, and the second light-emitting group 12 includes at least two second light-emitting lamps 121 distributed at intervals along the first direction x, the first light-emitting lamps 111 and the second light-emitting lamps 121 can be arranged in a one-to-one correspondence, or the first light-emitting lamps 111 and the second light-emitting lamps 121 can be arranged in a staggered manner.
[0097] The operating modes of the light-emitting structure 1 may include: all the first light-emitting lamps 111 in the first light-emitting group 11 are lit; all the second light-emitting lamps 121 in the second light-emitting group 12 are lit; and some of the first light-emitting lamps 111 in the first light-emitting group 11 and some of the second light-emitting lamps 121 in the second light-emitting group 12 are lit. It should be noted that if some of the first light-emitting lamps 111 in the first light-emitting group 11 and some of the second light-emitting lamps 121 in the second light-emitting group 12 are lit, the lit first light-emitting lamps 111 and lit second light-emitting lamps 121 are staggered so that they can fill each other when lit, thereby improving the uniformity of the light output surface 22.
[0098] The second light source 121 is an LED light. LED lights have the advantages of energy efficiency, long service life, and miniaturization.
[0099] The second light-emitting group 12 includes monochromatic LEDs. Monochromatic LEDs emit light of a single color, exhibiting high color consistency, stable luminous efficacy, uniform brightness, and low power consumption. The second light-emitting group 12 also includes multicolor LEDs. Multicolor LEDs can meet diverse color requirements. The second light-emitting group 12 can include both monochromatic and multicolor LEDs; that is, some of the second light-emitting lamps 121 within the second light-emitting group 12 may use monochromatic LEDs, while others may use multicolor LEDs, allowing for the superposition of these LEDs to achieve richer colors. The multicolor LEDs can be either dual-color or tri-color LEDs.
[0100] The first light-emitting group 11 and the second light-emitting group 12 are located on the same side of the light-emitting body 30 along the extending direction of the light-emitting body 30. This facilitates the light-adjustment alignment operation on the same side of the light-emitting body 30.
[0101] The light-emitting element 10 also includes a circuit board for carrying the light-emitting groups and providing electrical signals to the light-emitting groups. In some embodiments, the light-emitting element 10 includes a first circuit board 13a, and the first light-emitting group 11 and the second light-emitting group 12 are both mounted on the first circuit board 13a and electrically connected to the first circuit board 13a. In this way, while achieving the dynamic display effect of the light-emitting structure 1, the integration of the circuit board can be improved, the number of circuit boards used can be reduced, and the soldering processes between circuit boards can be reduced.
[0102] Furthermore, the first light-emitting group 11 and the second light-emitting group 12 are mounted on the same side of the first circuit board 13a. For example, the first circuit board 13a has a first surface 131 and a second surface 132 that are relatively distributed, and the first light-emitting group 11 and the second light-emitting group 12 are both mounted on the first surface 131.
[0103] The first light-emitting group 11 and the second light-emitting group 12 (e.g., along the third direction z) are distributed at intervals, so that the first light-emitting group 11 and the second light-emitting group 12 are dispersed, which is beneficial to heat dissipation.
[0104] In some embodiments, the distance between the first light-emitting group 11 and the second light-emitting group 12 (e.g., along the third direction z) is greater than or equal to 5 mm. By reasonably limiting the distance between the first light-emitting group 11 and the second light-emitting group 12, it can be ensured that the distance between the first light-emitting group 11 and the second light-emitting group 12 is sufficient to facilitate heat dissipation. Optionally, the distance between the first light-emitting group 11 and the second light-emitting group 12 (e.g., along the third direction z) can be 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc.
[0105] The distribution directions of the first light-emitting group 11 and the second light-emitting group 12 intersect with the distribution direction of the first light-emitting lamps 111 within the first light-emitting group 11. This allows for a more dispersed arrangement of the first light-emitting lamps 111 and the second light-emitting lamps 121, which is beneficial for heat dissipation. In some embodiments, the distribution directions of the first light-emitting group 11 and the second light-emitting group 12 are perpendicular to the distribution direction of the first light-emitting lamps 111 within the first light-emitting group 11, resulting in a more regular arrangement of the first light-emitting lamps 111 and the second light-emitting lamps 121.
[0106] Next, see Figures 1 to 5 The thick-walled light guide 20 is described in detail.
[0107] The thick-walled light guide 20 has a light-emitting surface 22, which is used to emit the first light beam and the second light beam. In this way, it can be ensured that when the first light-emitting group 11 and the second light-emitting group 12 are lit, light is emitted from the light-emitting surface 22, and different light effects are displayed at the light-emitting surface 22.
[0108] The light-emitting surface 22 is provided with optical patterns, which helps to diffuse light and achieve a uniform light effect.
[0109] The thick-walled light guide 20 also has an optical surface 21. The optical surface 21 is used to receive the first light and the second light and transmit the first light and the second light to the light-emitting surface 22, and then emit them out through the light-emitting surface 22.
[0110] The optical surface 21 includes a first surface 211, which is inclined toward the first light-emitting group 11. The first surface 211 is used to receive the first light emitted by the first light-emitting group 11 and reflect the first light so that the first light is emitted through the light-emitting surface 22.
[0111] The first surface 211 is tilted toward the first light-emitting group 11, which can make the incident angle of more first light rays when they reach the first surface 211 greater than the critical angle, thereby enabling total internal reflection at the first surface 211 and reducing light loss.
[0112] The tilt angle of the first surface 211 toward the first light-emitting group 11 can be determined based on factors such as the refractive index of the thick-walled light guide 30, and is not limited thereto.
[0113] The first surface 211 extends along the first direction x. That is, the extension direction of the first surface 211 is consistent with the distribution direction of the first light-emitting lamps 111 in the first light-emitting group 11, which is beneficial for the first surface 211 to receive the first light emitted by all the first light-emitting lamps 111 and reflect the first light.
[0114] The optical surface 21 includes at least two first surfaces 211 that are spaced apart along the light emission direction of the first light-emitting group 11. The more first surfaces 211 there are, the denser the distribution of the first surfaces 211, and the smaller the interval between two adjacent first surfaces 211, the less noticeable the dark area effect on the light-emitting surface 22 can be observed when the light effect on the light-emitting surface 22 is observed with the naked eye.
[0115] The optical surface 21 also includes a second surface 212, which is connected between two adjacent first surfaces 211 and is set at an angle to the first surfaces 211. The second surface 212 may not be tilted relative to the first light-emitting group 11.
[0116] The optical surface 21 is also used to receive the second light ray output from the incident light body 30 and transmit it into the thick-walled light guide 20 so that the second light ray is emitted through the emitting surface 22. Here, the optical surface 21 can be regarded as the interface between the thick-walled light guide 20 and the air. The second light ray output from the incident light body 30 passes through the air and then enters the thick-walled light guide 20. That is, it enters the optically denser medium from the optically less dense medium and can be refracted at the optical surface 21 into the thick-walled light guide 20.
[0117] It is understandable that since the second light enters the optical surface 21, which is determined by the properties of the medium, both the first surface 211 and the second surface 212 can receive the second light output from the light source 30 and refract it into the thick-walled light guide 20 so that the second light is emitted through the light-emitting surface 22.
[0118] In this embodiment, along the light-emitting direction of the reflective area 311, the second surface 212 is disposed corresponding to the reflective area 311, and is used to receive the second light emitted from the reflective area 311 and transmit it into the thick-walled light guide 20.
[0119] The optical surface 21 includes at least two second surfaces 212, and the at least two second surfaces 212 are arranged in a one-to-one correspondence with at least two reflective areas 311.
[0120] The second surface 212 extends along the first direction x. That is, the extension direction of the second surface 212 is consistent with the distribution direction of the second light-emitting lamps 121 in the second light-emitting group 12, which is beneficial for the second surface 212 to receive the second light emitted by all the second light-emitting lamps 121.
[0121] The thick-walled light guide 20 also includes a reflective surface 23, which is positioned opposite to the light-emitting surface 22 along the second direction y. The optical surface 21 is positioned opposite to the reflective surface 23 along the third direction z. The reflective surface 23 is used to receive the first light and the second light output from the optical surface 21 and reflect the first light and the second light to the light-emitting surface 22. The first direction x, the second direction y, and the third direction z are all perpendicular to each other.
[0122] The first direction x can be the width direction of the thick-walled light guide 20, the second direction y can be the length direction of the thick-walled light guide 20, and the third direction z can be the thickness direction of the thick-walled light guide 20.
[0123] The reflective surface 23 can be tilted toward the optical surface 21 so that more first and second rays arrive at the reflective surface 23 at an incident angle greater than the critical angle, thereby enabling total internal reflection at the reflective surface 23 and reducing light loss.
[0124] The tilt angle of the reflecting surface 23 toward the optical surface 21 can be determined based on factors such as the refractive index of the thick-walled light guide 30, and is not limited thereto.
[0125] The reflective surface 23 can be provided with a reflective layer to improve the light reflection effect.
[0126] Next, see Figures 1 to 5 The incident light body 30 is described in detail.
[0127] The distribution direction of the light incident body 30 and the thick-walled light guide 20 (e.g., distributed along the third direction z) is consistent with the distribution direction of the second light emitting group 12 and the first light emitting group 11. The light incident body 30 is located on the side where the optical surface 21 is located, so as to facilitate the light incident body 30 to transmit the second light towards the optical surface 21.
[0128] The light-incident surface 31 of the light-incident body 30 includes a reflective area 311. The reflective area 311 is inclined toward the second light-emitting group 12. The reflective area 311 is used to receive the second light emitted by the second light-emitting group 12 and reflect it to the optical surface 21, so that the second light enters the thick-walled light guide 20 through the optical surface 21 and is emitted from the light-emitting surface 22.
[0129] The reflective area 311 is tilted toward the second light-emitting group 12, which can make the incident angle of more second light rays when they reach the reflective area 311 greater than the critical angle, thereby enabling total internal reflection at the reflective area 311 and reducing light loss.
[0130] The tilt angle of the reflective area 311 toward the second light-emitting group 12 can be determined based on factors such as the refractive index of the thick-walled light guide 30, and is not limited thereto.
[0131] The reflective area 311 extends along the first direction x. That is, the extension direction of the reflective area 311 is consistent with the distribution direction of the second light-emitting lamps 121 in the second light-emitting group 12, which is beneficial for the reflective area 311 to receive the second light emitted by all the second light-emitting lamps 121 and reflect the second light.
[0132] The light-incident surface 31 includes at least two reflective areas 311 spaced apart along the light-emitting direction of the second light-emitting group 12. The more reflective areas 311 there are, the denser the distribution of the reflective areas 311, and the smaller the interval between two adjacent reflective areas 311, the less noticeable the dark area effect on the light-emitting surface 22 can be observed when the light effect on the light-emitting surface 22 is observed with the naked eye.
[0133] The light emission direction of the second light-emitting group 12 can be approximately parallel to the light emission direction of the first light-emitting group 11. For example, Figures 1 to 5 The light emission direction of the second light-emitting group 12 shown is approximately horizontal, just like the light emission direction of the first light-emitting group 11.
[0134] The light-incident surface 31 also includes a connecting region 312, which connects two adjacent reflective regions 311. The connecting region 312 and the reflective region 311 are arranged at an angle. The connecting region 312 may not be tilted relative to the light emission direction of the second light-emitting group 12.
[0135] The light-incident surface 31 can be roughly in the form of a sawtooth structure with alternating reflective areas 311 and connecting areas 312.
[0136] In the light emission direction of the second light-emitting group 12, the light-incident surface 31 is close to the thick-walled light guide 20, which is beneficial for the miniaturization design of the light-incident body 30. The light-incident body 30 is roughly triangular in shape.
[0137] The light source 30 is connected to the thick-walled light guide 20, which simplifies the assembly process of the two in the vehicle light.
[0138] Next, see Figures 1 to 5 The light-emitting structure 1 will be described in further detail.
[0139] The light-emitting structure 1 also includes a first light-concentrating body 40, which is connected to the thick-walled light guide 20. The first light-concentrating body 40 is located on the light-emitting side of the first light-emitting group 11 and is used to receive the first light and transmit it to the thick-walled light guide 20.
[0140] The first light-concentrating body 40 includes a first light-concentrating part 41 corresponding to a first light-emitting lamp 111. Each first light-concentrating part 41 is used to concentrate the first light emitted by the corresponding first light-emitting lamp 111. For example, if the first light-emitting group 11 includes N first light-emitting lamps 111 distributed along a first direction x, then the first light-concentrating body 40 includes N first light-concentrating parts 41 distributed along the first direction x, and the N first light-concentrating parts 41 are arranged in a one-to-one correspondence with the N first light-emitting lamps 111.
[0141] The first light-concentrating element 40 is integrated with the thick-walled light guide 20 to reduce assembly and alignment processes.
[0142] The first light-concentrating element 40 and the thick-walled light guide 20 are integrally molded to reduce assembly processes and lower production costs.
[0143] The light-emitting structure 1 also includes a second light-concentrating body 50, which is connected to the light-incident body 30. The second light-concentrating body 50 is located on the light-emitting side of the second light-emitting group 12 and is used to receive the second light and transmit it to the light-incident body 30.
[0144] The second light-concentrating body 50 includes a second light-concentrating section 51 corresponding to a second light-emitting lamp 121. Each second light-concentrating section 51 is used to concentrate the second light emitted by the corresponding second light-emitting lamp 121. For example, if the second light-emitting group 12 includes M second light-emitting lamps 121 distributed along the first direction x, then the second light-concentrating body 50 includes M second light-concentrating sections 51 distributed along the first direction x, and the M second light-concentrating sections 51 are arranged in a one-to-one correspondence with the M second light-emitting lamps 121.
[0145] The second light-concentrating body 50 is integrated with the incident light body 30 to reduce assembly and alignment processes.
[0146] The second light-concentrating body 50 and the incident light body 30 are integrally molded to reduce assembly processes and lower production costs.
[0147] In the above design, the first light emitted by the first light-emitting group 11 is focused by the first light-concentrating body 40, and the second light emitted by the second light-emitting group 12 is focused by the second light-concentrating body 50. That is, the first light and the second light are focused by different light-concentrating structures. Compared with the related technology in which all the light emitted by the light-emitting lamps is focused by the light-concentrating part in the thick-walled light guide, the first light-emitting lamp 111 in the first light-emitting group 11 and the second light-emitting lamp 121 in the second light-emitting group 12 can be arranged more dispersedly, which is conducive to heat dissipation.
[0148] In summary, the embodiments of this application design a first light-emitting group 11 and a second light-emitting group 12 with different light functions; wherein, the first light emitted by the first light-emitting group 11 is focused by the first light-concentrating body 40 and transmitted into the thick-walled light guide 20, reflected by the optical surface 21 of the thick-walled light guide 20, and finally diffused out by the pattern of the light-emitting surface 22; the second light emitted by the second light-emitting group 12 is focused by the second light-concentrating body 50 and transmitted into the light-incident body 30, and further transmitted by the light-incident body 30 to the optical surface 21 of the thick-walled light guide 20, enters the thick-walled light guide 20 through the optical surface 21, and finally diffused out by the pattern of the light-emitting surface 22.
[0149] This application also provides a vehicle lamp, which includes the light-emitting structure 1 described above. The light-emitting structure 1 refers to the above embodiments. Since the vehicle lamp adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0150] This application also provides a vehicle, which includes the aforementioned vehicle headlight. The vehicle headlight includes the aforementioned light-emitting structure 1. The light-emitting structure 1 refers to the above embodiments. Since the vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0151] Example 2
[0152] The difference between this embodiment and Embodiment 1 is that, as shown in the following... Figures 6 to 8 The light-emitting element 10 includes at least two second light-emitting groups 12, which are distributed at intervals with the first light-emitting group 11 along a preset direction (e.g., the third direction z), and the at least two second light-emitting groups 12 are located on the same side of the first light-emitting group 11 along the preset direction (e.g., the third direction z). Different light-emitting groups have different light functions. The more light-emitting groups there are, the richer the dynamic display effect of the light-emitting structure 1.
[0153] The light-emitting structure 1 includes at least two light-incident bodies 30, and the at least two light-incident bodies 30 are arranged in a one-to-one correspondence with at least two second light-emitting groups 12. In the light-emitting direction of the reflection area 311 of the light-incident body 30, the reflection areas 311 of different light-incident bodies 30 are staggered and correspond to different regions of the second surface 212 of the optical surface 21 of the thick-walled light guide 20.
[0154] For example, see Figures 6 to 8 The light emission direction of the reflection area 311 of the light-incident body 30 is approximately along the third direction z. The reflection areas 311 of different light-incident bodies 30 are staggered in the second direction y and correspond to different areas of the second surface 212 of the optical surface 21 of the thick-walled light guide 20.
[0155] The light-emitting structure 1 includes at least two second light-concentrating bodies 50, which are arranged in a one-to-one correspondence with at least two second light-emitting groups 12, for concentrating the second light emitted by the corresponding second light-emitting group 12 and transmitting it to the corresponding light-incident body 30.
[0156] Example 3
[0157] The difference between this embodiment and Embodiment 1 is that, as shown in the following... Figures 9 to 11 The first light-emitting group 11 and the second light-emitting group 12 are located on opposite sides of the light-emitting body 30 along the extending direction of the light-emitting body 30 (e.g., the second direction y). In this way, the first light-emitting group 11 and the second light-emitting group 12 can be more dispersed, which is beneficial for heat dissipation.
[0158] The light-emitting element 10 includes a second circuit board 13b and a third circuit board 13c. The first light-emitting group 11 is mounted on the second circuit board 13b and electrically connected to the second circuit board 13b, and the second light-emitting group 12 is mounted on the third circuit board 13c and electrically connected to the third circuit board 13c.
[0159] The first light-concentrating body 40 and the second light-concentrating body 50 are located on opposite sides of the light-concentrating body 30 along the extending direction of the light-concentrating body 30 (e.g., the second direction y).
[0160] Example 4
[0161] The difference between this embodiment and Embodiment 1 is that, as shown in the following... Figures 12 to 14 The optical surface 21 and the light-emitting surface 22 are arranged opposite each other along the second direction y, wherein the second direction y is along the length direction of the thick-walled light guide 20. That is, omitting the reflecting surface 23 in Embodiment 1 is beneficial to the simplification of the structure of the thick-walled light guide 20.
[0162] The light incident body 30 and the thick-walled light guide 20 are distributed along the second direction y, and the light incident body 30 is located on the side where the optical surface 21 is located.
[0163] The first light-concentrating body 40 and the second light-concentrating body 50 are located on the same side of the light-concentrating body 30 along the extension direction of the light-concentrating body 30.
[0164] Example 5
[0165] The difference between this embodiment and Embodiment 4 is that, as shown in the following... Figures 15 to 17 The light-emitting element 10 includes at least two second light-emitting groups 12, which are distributed at intervals with the first light-emitting group 11 along a preset direction (e.g., the second direction y), and the at least two second light-emitting groups 12 are located on the same side of the first light-emitting group 11 along the preset direction (e.g., the second direction y). Different light-emitting groups have different light functions. The more light-emitting groups there are, the richer the dynamic display effect of the light-emitting structure 1.
[0166] The light-emitting structure 1 includes at least two light-incident bodies 30, and the at least two light-incident bodies 30 are arranged in a one-to-one correspondence with at least two second light-emitting groups 12. In the light-emitting direction of the reflection area 311 of the light-incident body 30, the reflection areas 311 of different light-incident bodies 30 are staggered and correspond to different regions of the second surface 212 of the optical surface 21 of the thick-walled light guide 20.
[0167] For example, see Figures 15 to 17 The light emission direction of the reflection area 311 of the light-incident body 30 is approximately along the third direction z. The reflection areas 311 of different light-incident bodies 30 are staggered in the second direction y and correspond to different areas of the second surface 212 of the optical surface 21 of the thick-walled light guide 20.
[0168] The light-emitting structure 1 includes at least two second light-concentrating bodies 50, which are arranged in a one-to-one correspondence with at least two second light-emitting groups 12, for concentrating the second light emitted by the corresponding second light-emitting group 12 and transmitting it to the corresponding light-incident body 30.
[0169] Example 6
[0170] The difference between this embodiment and Embodiment 4 is that, as shown in the following... Figures 18 to 20 The first light-emitting group 11 and the second light-emitting group 12 are located on opposite sides of the light-emitting body 30 along the extending direction (e.g., the third direction z) of the light-emitting body 30. In this way, the first light-emitting group 11 and the second light-emitting group 12 can be more dispersed, which is beneficial for heat dissipation.
[0171] The light-emitting element 10 includes a second circuit board 13b and a third circuit board 13c. The first light-emitting group 11 is mounted on the second circuit board 13b and electrically connected to the second circuit board 13b, and the second light-emitting group 12 is mounted on the third circuit board 13c and electrically connected to the third circuit board 13c.
[0172] The first light-concentrating body 40 and the second light-concentrating body 50 are located on opposite sides of the light-concentrating body 30 along the extending direction of the light-concentrating body 30 (e.g., the third direction z).
[0173] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.
Claims
1. A light emitting structure (1) characterized in that, The application relates to a light-emitting device, which comprises a light-emitting part (10), a thick-wall light guide (20) and a light inlet part (30). The light-emitting part (10) comprises a first light-emitting group (11) and a second light-emitting group (12), the first light-emitting group (11) comprises a first light-emitting lamp (111), and the second light-emitting group (12) comprises at least two second light-emitting lamps (121) which are spaced apart along a first direction (x); the first light-emitting group (11) and the second light-emitting group (12) have different light functions. The thick-wall light guide (20) has an optical surface (21) and an out-light surface (22); the optical surface (21) is located on the out-light side of the first light-emitting group (11) and is arranged correspondingly to the first light-emitting group (11); the optical surface (21) is used for receiving first light emitted by the first light-emitting group (11) and transmitting the first light to the out-light surface (22) so that the first light is emitted by the out-light surface (22). The light inlet part (30) is located on the out-light side of the second light-emitting group (12) and is arranged correspondingly to the second light-emitting group (12); the light inlet part (30) has a light inlet surface (31); the light inlet surface (31) comprises a reflection area (311) which extends along the first direction (x); the reflection area (311) is arranged obliquely towards the second light-emitting group (12) and is used for receiving second light emitted by the second light-emitting group (12) and reflecting the second light to the optical surface (21) so that the second light enters the thick-wall light guide (20) via the optical surface (21) and is emitted by the out-light surface (22).
2. The light emitting structure (1) according to claim 1, characterized in that The optical surface (21) comprises a first surface (211) and a second surface (212). The first surface (211) is arranged obliquely towards the first light-emitting group (11) and is used for receiving first light emitted by the first light-emitting group (11) and transmitting the first light to the out-light surface (22). Along the out-light direction of the reflection area (311), the second surface (212) is arranged correspondingly to the reflection area (311) and is used for receiving second light output by the reflection area (311) and transmitting the second light into the thick-wall light guide (20).
3. The light emitting structure (1) according to claim 2, characterized in that The second surface (212) extends along the first direction (x).
4. The light emitting structure (1) according to claim 2, characterized in that The light inlet surface (31) comprises at least two reflection areas (311) which are spaced apart along the out-light direction of the second light-emitting group (12) and at least two connecting areas (312) which are connected between adjacent two reflection areas (311) and are arranged at an angle with the reflection areas (311). The optical surface (21) comprises at least two second surfaces (212) which are arranged correspondingly to at least two reflection areas (311) one by one.
5. The light emitting structure (1) according to claim 4, characterized in that Along the out-light direction of the reflection area (311), the light inlet surface (31) is in a close state relative to the thick-wall light guide (20).
6. The light-emitting structure (1) according to any one of claims 2 to 5, characterized in that The light-emitting device (10) comprises at least two second light-emitting groups (12) which are spaced apart along a preset direction from the first light-emitting group (11) and are located on the same side of the first light-emitting group (11) along the preset direction; different light-emitting groups have different light functions.
7. The light emitting structure (1) according to claim 6, characterized in that The light emitting structure (1) comprises at least two light inlets (30), and the at least two light inlets (30) are arranged one by one with the at least two second light emitting groups (12); The reflection areas (311) of different light inlets (30) are arranged in a staggered manner along the light emitting direction of the reflection area (311), and correspond to different areas of the second surface (212).
8. The light emitting structure (1) according to claim 1, characterized in that The thick-walled light guide (20) further has a reflection surface (23) arranged opposite to the light output surface (22) along a second direction (y), wherein the second direction (y) is along the length direction of the thick-walled light guide (20). The reflection surface (23) is used for receiving the first light and the second light output by the optical surface (21) and reflecting the first light and the second light to the light output surface (22).
9. The light emitting structure (1) according to claim 1, characterized in that The optical surface (21) and the light output surface (22) are arranged opposite along a second direction (y), wherein the second direction (y) is along the length direction of the thick-walled light guide (20).
10. The light emitting structure (1) according to claim 1, characterized in that The first light emitting group (11) and the second light emitting group (12) are located on the same side of the light inlet (30) along the extension direction of the light inlet (30).
11. The light emitting structure (1) according to claim 10, characterized in that The light emitting component (10) further comprises: A first circuit board (13a), and the first light emitting group (11) and the second light emitting group (12) are mounted on the same side of the first circuit board (13a) and are electrically connected to the first circuit board (13a).
12. The light emitting structure (1) according to claim 1, characterized in that The first light emitting group (11) and the second light emitting group (12) are located on opposite sides of the light inlet (30) along the extension direction of the light inlet (30).
13. The light emitting structure (1) according to claim 12, characterized in that The light emitting component (10) further comprises: A second circuit board (13b), and the first light emitting group (11) is mounted on the second circuit board (13b) and is electrically connected to the second circuit board (13b); A third circuit board (13c), and the second light emitting group (12) is mounted on the third circuit board (13c) and is electrically connected to the third circuit board (13c).
14. The light emitting structure (1) according to claim 1, characterized in that Further comprising: A first light concentrator (40) connected to the thick-walled light guide (20), the first light concentrator (40) is located on the light output side of the first light emitting group (11) and is used for receiving the first light and transmitting to the thick-walled light guide (20); A second light concentrator (50) connected to the light inlet (30), the second light concentrator (50) is located on the light output side of the second light emitting group (12) and is used for receiving the second light and transmitting to the light inlet (30).
15. The light emitting structure (1) according to claim 1, characterized in that The light inlet (30) is connected to the thick-walled light guide (20).
16. A vehicle light, characterized by The light emitting structure (1) of any one of claims 1 to 15.
17. A vehicle characterized by comprising: The vehicle lamp of claim 16. The vehicle lamp of claim 16.