Light guide, ambilight and vehicle

Abstract

The utility model discloses light guide piece, atmosphere lamp and vehicle, light guide piece includes main part, has the first side and the second side of opposite setting, and the second side is used for light ray to emit, the first side of main part has the recessed setting of the light guide groove to the second side, and the light guide groove includes a plurality of groove parts, wherein, along the first direction from the first side to the second side, a plurality of groove parts are sequentially arranged, and the area of each groove part's circumferential surface is sequentially reduced, and each groove part's circumferential surface is configured to receive light and make light non-directional refraction and emit from the second side, to form a plurality of light-emitting areas with different brightness on the second side. When the light guide piece in the embodiment cooperates with the light source, a plurality of light-emitting areas with different brightness can be formed on the second side, which is more rich in light efficiency compared with uniform light-emitting mode, and is beneficial to forming differentiation with common range on the market.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a light guide, ambient light, and vehicle. Background Technology

[0002] With the rapid development of the automotive industry and technological advancements, ambient lighting, as an important component for enhancing the visual experience inside vehicles, has been widely used in recent years. Surface-emitting ambient lights are particularly favored for their ability to provide a uniform and soft light distribution. However, related technologies typically employ optical devices such as light guide plates to achieve a uniform light distribution, leading to issues like limited light efficacy and high homogeneity in this type of ambient lighting. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a light guide component that can improve the problems of monotonous and highly homogenized ambient lighting effects.

[0004] This utility model also proposes an ambient light and a vehicle using the aforementioned ambient light.

[0005] According to the first embodiment of the present invention, the light guide includes a main body having a first side and a second side disposed opposite to each other, the second side being used for light to be emitted, the first side of the main body having a light guide groove recessed toward the second side, the light guide groove including a plurality of groove portions; In this configuration, a plurality of grooves are sequentially arranged along a first direction from the first side to the second side, the area of ​​the peripheral side surface of each groove is sequentially reduced, and the peripheral side surface of each groove is configured to receive light and cause the light to be emitted from the second side after non-directional refraction, so as to form a plurality of light-emitting areas with different brightness on the second side.

[0006] The light guide component according to the embodiments of this utility model has at least the following beneficial effects: When the light guide in this embodiment is used in conjunction with the light source, it can form multiple light-emitting areas with different brightness on the second side, which is more luminous than the uniform light emission mode and helps to differentiate it from common light-emitting areas on the market.

[0007] In other embodiments of this utility model, along the first direction, the area of ​​the cross-section of each groove perpendicular to the first direction gradually decreases.

[0008] In other embodiments of this utility model, the peripheral side surface of each groove is provided as a frosted surface.

[0009] In other embodiments of the present invention, each of the grooves includes a groove bottom surface facing the first side, and in two adjacent grooves, the groove closer to the second side is formed on the groove bottom surface of the groove away from the second side; The light guide groove is configured such that the light flux entering the main body through the bottom surface of the groove is less than the light flux entering the main body through the peripheral side surface.

[0010] In other embodiments of this invention, the bottom surface of the groove is configured to allow total internal reflection of light.

[0011] In other embodiments of this utility model, in two adjacent grooves, the peripheral side of the groove closer to the first side surrounds the peripheral side of the groove away from the first side. The plurality of light-emitting regions with different brightness include a first region and at least one second region surrounding the first region. The maximum brightness of each region increases sequentially along the direction from the first region to the second region.

[0012] In other embodiments of this utility model, the brightness of each region increases sequentially along the direction from the first region to the second region.

[0013] The ambient light according to the second embodiment of the present invention includes: The aforementioned light guide component; A light source assembly includes a light-emitting element for generating light that illuminates the light guide element.

[0014] In other embodiments of this utility model, the light source assembly includes a plurality of the light-emitting elements; The light guide includes a plurality of light guide grooves, and the light source assembly and the light guide are distributed along the direction from the first side to the second side. The light guide grooves are correspondingly arranged with the light-emitting elements so that the light emitted by each light-emitting element can form a plurality of light-emitting areas with different brightness on the second side of the light guide. And / or, the plurality of light-emitting elements are divided into multiple groups, the ambient light also includes an outer trim and a touch element, the light guide, the outer trim and the touch element are distributed along the direction from the first side to the second side, the outer trim has multiple light-transmitting portions, the light-transmitting portions are correspondingly arranged with the light guide groove on the light guide, the touch element includes multiple touch points corresponding to the multiple groups of light-emitting elements, and in response to the triggering of the touch points, the corresponding group of light-emitting elements changes the light-emitting state.

[0015] The vehicle according to the third embodiment of the present invention includes: Body; The aforementioned ambient lighting.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a three-dimensional schematic diagram of the light guide component in an embodiment of this utility model; Figure 2 for Figure 1 The image shows a partial schematic diagram of a single light guide groove; Figure 3 for Figure 1 The image shows a cross-sectional view of a single light guide groove. Figure 4 This is an exploded view of an ambient light in one embodiment of the present invention; Figure 5 This is an exploded view of an ambient light according to another embodiment of the present invention.

[0018] Figure label: Light guide 100, first side 101, second side 102, first region 1021, second region 1022, third side 103, main body 110, light guide groove 120, groove 121, peripheral side 1211, groove bottom 1212, first groove 121a, second groove 121b, third groove 121c; Light source assembly 200, light-emitting element 210; Exterior trim 300, light-transmitting part 310; Touch component 400; Wire harness 500; Bracket 600. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] As mentioned earlier, most ambient lights on the market are designed to achieve uniform light source. While this makes the light softer, it also results in problems such as limited light effect and high homogeneity. Based on this, this utility model proposes a light guide that, when applied to ambient lights, can form multiple areas of different brightness, thereby making the light-emitting effect more three-dimensional.

[0025] Reference Figures 1 to 3 The first embodiment of this utility model provides a light guide 100, which includes a main body 110. The main body 110 is entirely made of a light-transmitting material, such as glass or a transparent acrylic sheet. The main body 110 has a first side 101 and a second side 102 disposed opposite to each other. For example, the main body 110 is configured as a flat plate structure, and the first side 101 and the second side 102 are disposed opposite to each other along the thickness direction of the main body 110. Specifically, the first side 101 is... Figure 3 The upper side shown, the second side 102 is Figure 3 The lower side is shown. The second side 102 is used for light emission; that is, the light emitted by the light source first passes through the light guide 100 and then exits from the second side 102. It should be noted that the light emitted by the light source can enter from the first side 101, or from other sides, such as the third side located between the first side 101 and the second side 102. In this case, the light source is installed laterally.

[0026] Reference Figure 2 , Figure 3 The main body 110 has a light guide groove 120 recessed towards the second side 102 on its first side 101. The light guide groove 120 includes a plurality of grooves 121 arranged sequentially along a first direction from the first side 101 to the second side 102. For example, the light guide groove 120 includes three grooves 121, but is not limited thereto; the light guide groove 120 may also include two, four, or other numbers of grooves 121. For ease of description, the three grooves 121 are respectively named the first groove 121a, the second groove 121b, and the third groove 121c. Figure 3 In the middle, from top to bottom, the first groove 121a, the second groove 121b and the third groove 121c are arranged in sequence, such that the first groove 121a is close to the first side 101, the third groove 121c is close to the second side 102, and the second groove 121b is located between the first groove 121a and the third groove 121c.

[0027] Along the first direction from the first side 101 to the second side 102, the area of ​​the peripheral side surface 1211 of each slot 121 decreases sequentially. That is, the area of ​​the peripheral side surface 1211 of the first slot 121a, the second slot 121b, and the third slot 121c decreases sequentially, which also means that the light flux incident through each peripheral side surface 1211 decreases sequentially. For example, when the slot 121 is a cylindrical slot, the peripheral side surface 1211 of the slot 121 can be obtained by calculating the circumference of a cylinder. When the slot 121 is a conical slot, the peripheral side surface 1211 of the slot 121 is obtained by calculating the circumference of a frustum of a cone. When the slot 121 is a rectangle or approximately rectangular (e.g., ...), the area of ​​the peripheral side surface 1211 of the slot 121 can be obtained by calculating the circumference of a frustum of a cone. Figure 2As shown, the corners of the rectangle (adjusted from sharp corners to rounded corners) can all be calculated in a corresponding manner. Meanwhile, in this embodiment, the peripheral surface 1211 of each groove 121 is configured to receive light, meaning that at least a portion of the light emitted from the light source can enter the main body 110 through the peripheral surface 1211. It should be noted that, on the one hand, the peripheral surface 1211 can be designed to make it easier for light to enter from the peripheral surface 1211, for example, by making the peripheral surface 1211 a slope to facilitate light reception. On the other hand, the light source or other optical devices can also be designed to make it easier for light to enter from the peripheral surface 1211, for example, by setting a lens structure between the light source and the light guide 100 to adjust the direction of light emission, so that most of the light can enter from the peripheral surface 1211. Furthermore, in this embodiment, the peripheral side surface 1211 of each groove 121 is configured to allow light to undergo non-directional refraction and exit from the second side 102. Non-directional refraction means that after light enters from the peripheral side surface 1211, it does not refract in a specific direction, but refracts in any direction while satisfying the law of refraction. Due to the randomness of the angle of light refraction, the light will propagate in more diverse directions within the light guide 100, increasing the chance of light converging on the second side 102, thereby increasing the amount of light that can enter the user's eye. On the other hand, non-directional refraction can also disrupt conditions such as total internal reflection, preventing the light from failing to exit from the second side 102 due to total internal reflection.

[0028] Because the peripheral surface 1211 can cause non-directional refraction of light, for the reasons mentioned above, when this part of the light is emitted from a certain area of ​​the second side 102, it is more easily received by the human eye than the light that enters from other parts and is emitted from other areas of the second side 102. Therefore, it is brighter than other areas in terms of visual effect. Furthermore, since the area of ​​the peripheral surface 1211 of each slot 121 decreases sequentially, that is, the light flux entering through each peripheral surface 1211 also decreases sequentially, a brightness difference will be formed in the aforementioned brighter area. Specifically, the larger the area of ​​the peripheral surface 1211, the brighter the corresponding light-emitting area will be. The above-mentioned configurations enable the light guide 100 in this embodiment to form multiple light-emitting areas with different brightness on the second side 102 when it is used in conjunction with the light source. That is, when the user observes the second side 102 of the light guide 100, multiple light-emitting areas with different brightness can be clearly seen on the second side 102 (for ease of description, these light-emitting areas can be named light-emitting intervals). Compared with the uniform light emission mode, the light effect is richer, which is beneficial to differentiate it from common ranges on the market. At the same time, this embodiment mainly achieves the change of light through the light guide 100, which has a simple structure. In addition, each light guide groove 120 can form the aforementioned light-emitting interval on the second side 102. Therefore, by increasing or decreasing the number of light guide grooves 120 on the light guide 100, the density of the light-emitting intervals on the second side 102 can be adjusted, thereby further adjusting and forming different light emission effects.

[0029] Based on the first embodiment, in some embodiments of this utility model, reference is made to Figure 3 Along the first direction, that is, from top to bottom, the cross-sectional area of ​​each groove 121 perpendicular to the first direction gradually decreases. Thus, the peripheral surface 1211 of each groove 121 is configured as an inclined or curved surface. When the light source assembly 200 emits light towards the first side 101 of the light guide 100, at least a portion of the light rays form a certain angle with the peripheral surface 1211, preventing the light rays from being parallel to the peripheral surface 1211 and thus unable to enter from it. Furthermore, the groove 121 has a central axis, and the gradual decrease in the cross-sectional area of ​​each groove 121 perpendicular to the first direction can also be understood as a gradual decrease in the distance from the peripheral surface 1211 to the central axis.

[0030] It should be noted that in some other embodiments, the area of ​​the cross section of each groove 121 perpendicular to the first direction can also remain constant. As mentioned above, in this case, the light source assembly 200 can be designed separately, or optical devices such as lenses can be added, so that the light emitted by the light source assembly 200 can still enter the peripheral side surface 1211 at a certain angle.

[0031] Based on the first embodiment, in some embodiments of this utility model, the peripheral side surface 1211 of each groove 121 is set as a frosted surface, that is, multiple irregular micro-protrusions (e.g., micron-level protrusions) are formed on the peripheral side surface 1211. When light shines on these irregular protrusions, part of the light will directly enter the main body 110 through the surface of the protrusion, and part of the light will be reflected once or multiple times between the protrusions. Each time the reflected light shines on the surface of the protrusion again, it will be reflected and refracted again. Since the protrusions are irregularly arranged, the surface of each protrusion is also irregular. Therefore, the direction of the light entering or reflected through these surfaces can be considered random, thus forming non-directional refraction. It should be noted that the frosted surface can be formed using a known process.

[0032] Based on the first embodiment, in some embodiments of this utility model, reference is made to Figure 3 Along a first direction from the first side 101 to the second side 102, in two adjacent slots 121, the minimum cross-sectional area of ​​the slot 121 farther from the second side 102 is greater than the maximum cross-sectional area of ​​the slot 121 closer to the second side 102, thereby forming a stepped surface between the two adjacent slots 121. This stepped surface also constitutes the bottom surface 1212 of the larger slot 121 (the slot 121 farther from the second side 102), or in other words, the smaller slot 121 (the slot 121 closer to the second side 102) is formed on the bottom surface 1212 of the larger slot 121. For example, the minimum cross-sectional area of ​​the first slot 121a is greater than the maximum cross-sectional area of ​​the second slot 121b, and the second slot 121b is formed on the bottom surface 1212 of the first slot 121a. By setting the stepped surface, it is convenient to achieve the staggered arrangement of the peripheral surfaces 1211 of different slots 121, thereby facilitating the formation of multiple light-emitting areas with clear distinction between light and dark areas.

[0033] Based on the above structure, in this embodiment, the light guide groove 120 is further configured such that, in the same groove 121, the light flux entering the main body 110 through the bottom surface 1212 of the groove 121 is less than the light flux entering the main body 110 through the peripheral side surface 1211. In this way, more light can enter through the peripheral side surface 1211 to undergo non-directional refraction within the main body 110, instead of entering from the bottom surface 1212, thus avoiding the formation of local bright spots at the boundary of adjacent light-emitting areas and affecting the visual effect.

[0034] As a specific way to implement the above solution, the bottom surface 1212 of the groove is configured to cause total internal reflection of light, so that most of the light rays incident on the bottom surface 1212 will be reflected and will not enter the main body 110. For example, the bottom surface 1212 of the groove is set as a mirror surface, which can be formed by a polishing process.

[0035] Based on the first embodiment, in some embodiments of this utility model, reference is made to Figure 2 , Figure 3 In two adjacent slots 121, the peripheral side 1211 of the slot 121 closer to the first side 101 surrounds the peripheral side 1211 of the slot 121 farther from the first side 101. For example, the peripheral side 1211 of the first slot 121a surrounds the peripheral side 1211 of the second slot 121b, and the peripheral side 1211 of the second slot 121b surrounds the peripheral side 1211 of the third slot 121c; furthermore, the central axes of each slot 121 are collinear.

[0036] Based on the above structure, multiple light-emitting regions with different brightness include a first region 1021 and at least one second region 1022 surrounding the first region 1021. Light enters from the peripheral side 1211 of the groove 121 closest to the second side 102 and exits from the second side 102 to form the first region 1021. Light enters from the peripheral side 1211 of other grooves 121 and exits from the second side 102 to form the second region 1022. For example, light enters from the peripheral side 1211 of the first groove 121a and exits from the second side 102 to form a first region 1021. Light enters from the peripheral side 1211 of the second groove 121b and the third groove 121c and exits from the second side 102 to form two second regions 1022. The first region 1021 is located in the center. The two second regions 1022 are arranged in a ring. The smaller second region 1022 surrounds the outside of the first region 1021, and the larger second region 1022 surrounds the outside of the smaller second region 1022.

[0037] In this embodiment, along the direction from the first region 1021 to the second region 1022, that is, from the inner circle to the outer circle, the maximum brightness of each region increases sequentially. Taking the aforementioned example, the maximum brightness of the first region 1021 is less than the maximum brightness of the smaller second region 1022, and the maximum brightness of the smaller second region 1022 is less than the maximum brightness of the larger second region 1022. Furthermore, the maximum brightness of the first region 1021 is less than the minimum brightness of the smaller second region 1022, and the maximum brightness of the smaller second region 1022 is less than the minimum brightness of the larger second region 1022. Thus, when the user observes from the second side 102, they can see a light effect that is distributed in a ring and shows an increase in brightness from the inside to the outside.

[0038] Based on the foregoing embodiments, in some embodiments of this utility model, the brightness of each region increases sequentially along the direction from the first region 1021 to the second region 1022. That is, the foregoing embodiments described the brightness relationship between each region, and this embodiment further describes the brightness change within the same region. Thus, along the direction from the first region 1021 to the second region 1022, the brightness in the entire light-emitting interval (the set of light-emitting regions corresponding to the same light guide groove 120) shows a gradually increasing trend, thereby creating a depth-of-field effect.

[0039] As a specific way to achieve the above effect, the cross-sectional area of ​​each groove 121 can be set to gradually decrease as described above. Based on this, for the peripheral side 1211 of the same groove 121, the closer it is to the second side 102, the smaller the area that receives light, and the less light emitted from the second side 102, and the lower the brightness.

[0040] The second embodiment of this utility model also proposes an ambient light, as shown in the reference. Figure 4 , Figure 5 It includes a light source assembly 200 and a light guide 100 as described in the preceding embodiments. The light source assembly 200 includes a light-emitting element 210, which is used to generate light that illuminates the light guide 100. The light is emitted from the second side 102 of the light guide 100 to form the aforementioned light-emitting areas. For example, the light-emitting element 210 can be an LED. In some specific embodiments, refer to... Figure 4 The light source assembly 200 is configured as a light strip and is positioned to the side of the light guide 100, specifically on the third side located between the first side 101 and the second side 102. Specifically, when the light guide 100 is configured as a rectangle with unequal length and width, the light source assembly 200 is parallel to the width direction of the light guide 100. In other specific embodiments, refer to... Figure 5 The light source assembly 200 is set as a lamp panel and is positioned toward the first side 101 of the light guide 100. That is, the light source assembly 200 and the light guide 100 are distributed along the direction from the first side 101 to the second side 102. Specifically, when the light guide 100 is set as a rectangular body with unequal length and width, the light source assembly 200 is set on a rectangular lamp panel with a shape that matches it.

[0041] Based on the second embodiment, in some embodiments of this utility model, reference is made to Figure 4 , Figure 5The ambient light can also be equipped with a bracket 600, an outer trim 300, and a wiring harness 500. The bracket 600 serves as the mounting base for mounting the light guide 100, and the outer trim 300 covers the light guide 100. For example, the bracket 600 and the outer trim 300 are connected and fixed by means of snap-fit, adhesive, or threaded connection, defining a mounting cavity in which both the light guide 100 and the light source assembly 200 are located. The outer trim 300 has a light-transmitting portion 310, which corresponds to the light guide groove 120 on the light guide 100, allowing light to pass through so that the user can see the corresponding lighting effect. For example, the light-transmitting portion 310 can be a through groove opened on the light guide 100. Figure 4 , Figure 5 This is an example of such a structure, which can also be a solid structure made of light-transmitting material on the light guide 100.

[0042] The wiring harness 500 is used to realize the electrical connection between the light source assembly 200 and the vehicle head unit.

[0043] Based on the second embodiment, in some embodiments of this utility model, reference is made to Figure 4 , Figure 5 The light source assembly 200 includes multiple light-emitting elements 210, which can be arranged in an array or similar manner. For example, the multiple light-emitting elements 210 can be arranged in a rectangular array. The multiple light-emitting elements 210 can be controlled uniformly, or individually, either as a single element or a group of elements. The control includes turning the light-emitting elements 210 on and off, adjusting their color, brightness, illumination duration, and illumination sequence, thereby achieving display effects such as breathing lights or flowing lights.

[0044] Correspondingly, the light guide 100 includes multiple light guide grooves 120. The light source assembly 200 and the light guide 100 are distributed along the direction from the first side 101 to the second side 102. The light guide grooves 120 are correspondingly arranged with the light-emitting elements 210 so that the light emitted by each light-emitting element 210 can form multiple light-emitting areas with different brightness on the second side 102 of the light guide 100. That is, the light emitted by a single light-emitting element 210 can form multiple light-emitting areas with different brightness, and the overall combination of the light-emitting areas formed by multiple light-emitting elements 210 can form a rich light effect.

[0045] Based on the second embodiment, in some embodiments of this utility model, reference is made to Figure 4 , Figure 5The light source assembly 200 includes multiple light-emitting elements 210, which can be arranged in an array or similar manner. For example, the multiple light-emitting elements 210 are arranged in a rectangular array. The multiple light-emitting elements 210 are divided into multiple groups, each group including one or more light-emitting elements 210. The number of light-emitting elements 210 in different groups can be equal or unequal. In this embodiment, each group of light-emitting elements 210 can be controlled individually.

[0046] The ambient light also includes a touch element 400 and the aforementioned exterior trim 300. The light guide 100, exterior trim 300, and touch element 400 are distributed along the direction from the first side 101 to the second side 102, that is, the touch element 400 is located on the outside of the exterior trim 300 behind the light guide 100, thus facilitating user touch. The touch element 400 includes multiple touch points corresponding to multiple groups of light-emitting elements 210. The user triggers the touch points by touching them. In response to the triggering of the touch points, the corresponding group of light-emitting elements 210 changes its light-emitting state. The change of light-emitting state includes changing the on / off state of the light-emitting elements 210, changing the color of the light-emitting elements 210, changing the brightness of the light-emitting elements 210, etc. For example, when all groups of light-emitting elements 210 are in the off state, the user can touch the touch points of a specific part to light up the corresponding part of the light-emitting elements 210, thereby customizing different patterns.

[0047] The touch element 400 can be a known touch film.

[0048] In order to achieve electrical connection between the touch device 400 and the light source assembly 200, the ambient light also includes a connecting cable, with both ends of the connecting cable electrically connected to the touch device 400 and the light source assembly 200, respectively.

[0049] A second aspect of this utility model also proposes a vehicle, which includes a body and ambient lighting 10 as described in the foregoing embodiments. The ambient lighting 10 is connected to the body, for example, to the dashboard, door trim, center console, etc. The vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. It can also be a commercial vehicle, such as a van, bus, small truck, or large trailer. The vehicle can be a gasoline-powered vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A light guide, characterized in that The device includes a main body with a first side and a second side disposed opposite to each other. The second side is used for light to be emitted. The first side of the main body has a light guide groove recessed toward the second side. The light guide groove includes a plurality of grooves. In this configuration, a plurality of grooves are sequentially arranged along a first direction from the first side to the second side, the area of ​​the peripheral side surface of each groove is sequentially reduced, and the peripheral side surface of each groove is configured to receive light and cause the light to be emitted from the second side after non-directional refraction, so as to form a plurality of light-emitting areas with different brightness on the second side.

2. A light guide according to claim 1, characterised in that Along the first direction, the area of ​​the cross-section of each groove perpendicular to the first direction gradually decreases.

3. The light guide of claim 1, wherein, The peripheral side surface of each groove is provided with a frosted surface.

4. The light guide of claim 1, wherein, Each of the grooves includes a groove bottom surface facing the first side. In two adjacent grooves, the groove closer to the second side is formed on the groove bottom surface of the groove away from the second side. The light guide groove is configured such that the light flux entering the main body through the bottom surface of the groove is less than the light flux entering the main body through the peripheral side surface.

5. A light guide according to claim 4, wherein, The bottom surface of the groove is configured to allow total internal reflection of light.

6. The light guide of claim 1, wherein, In two adjacent slots, the peripheral side of the slot closer to the first side surrounds the peripheral side of the slot farther from the first side. The multiple light-emitting regions with different brightness include a first region and at least one second region surrounding the first region. The maximum brightness of each region increases sequentially along the direction from the first region to the second region.

7. A light guide according to claim 6, characterised in that Along the direction from the first region to the second region, the brightness in each region increases sequentially.

8. An ambient light characterized by, include: The light guide element according to any one of claims 1 to 7; A light source assembly includes a light-emitting element for generating light that illuminates the light guide element.

9. The atmosphere lamp according to claim 8, characterized in that The light source assembly includes a plurality of the light-emitting elements; The light guide includes a plurality of light guide grooves, and the light source assembly and the light guide are distributed along the direction from the first side to the second side. The light guide grooves are correspondingly arranged with the light-emitting elements so that the light emitted by each light-emitting element can form a plurality of light-emitting areas with different brightness on the second side of the light guide. And / or, the plurality of light-emitting elements are divided into multiple groups, the ambient light also includes an outer trim and a touch element, the light guide, the outer trim and the touch element are distributed along the direction from the first side to the second side, the outer trim has multiple light-transmitting portions, the light-transmitting portions are correspondingly arranged with the light guide groove on the light guide, the touch element includes multiple touch points corresponding to the multiple groups of light-emitting elements, and in response to the triggering of the touch points, the corresponding group of light-emitting elements changes the light-emitting state.

10. Vehicle, characterized in that include: Body; The ambient light according to any one of claims 1 to 9.

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