Optical module, vehicle lamp and vehicle

Abstract

The application discloses an optical module, a vehicle lamp and a vehicle. The optical module comprises a support and a light guide component. The support is provided with a mounting hole, and the light guide component is inserted and assembled in the mounting hole. The light guide component has a first wall surface and a second wall surface. The second wall surface is provided with a plurality of shaped grooves. The support has a first reflection surface and a second reflection surface. Part of the light inside the light guide component is refracted to the second reflection surface through the groove wall of the shaped groove and is reflected to the light exit side of the light guide component through the second reflection surface. Part of the light inside the light guide component is reflected to the first wall surface through the groove wall of the shaped groove. The light is refracted to the first reflection surface through the first wall surface and is reflected to the light exit side of the light guide component through the first reflection surface. The first reflection surface and the second reflection surface project the shape of the shaped groove to the light exit side, enrich the visual performance level when the vehicle lamp is lighted, and make the light exit side show the exclusive light and shadow shape, improve the visual recognition of the appearance, and meet the increasing personalized design demand.

Description

Technical Field

[0001] This application relates to the field of vehicle lighting technology, and more particularly to an optical module, a vehicle lamp, and a vehicle. Background Technology

[0002] With the continuous development of the automotive industry and the increasing aesthetic demands of consumers, automotive lighting is no longer limited to traditional functional lighting tools, and higher requirements are placed on the personalization of car lights. In the current technology, when car lights are lit, only the light-emitting surface has a light source, resulting in a monotonous lighting effect that cannot meet the needs of personalized design. At the same time, the large difference in brightness between the headlights and the surrounding dark environment can easily cause glare to people outside the vehicle, posing a safety hazard.

[0003] Therefore, improvements to existing technologies are necessary. Summary of the Invention

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

[0005] According to one aspect of this application, an optical module is provided, including a bracket and a light guide component. The bracket has a mounting hole, and the light guide component is inserted and assembled into the mounting hole. In a three-dimensional coordinate system, the light guide component has a first wall and a second wall disposed opposite each other in the Z-axis direction. The second wall has a plurality of shaped grooves, and the Z-axis direction is perpendicular to the main light emission direction of the light guide component. The bracket has a first reflective surface and a second reflective surface, which are respectively disposed on both sides of the light guide component in the Z-axis direction. The first reflective surface is opposite to the first wall, and the second reflective surface is opposite to the second wall. Part of the light inside the light guide component is refracted by the groove wall of the shaped groove to the second reflective surface and reflected by the second reflective surface toward the light emission side of the light guide component. Part of the light inside the light guide component is also reflected by the groove wall of the shaped groove toward the first wall, refracted by the first wall to the first reflective surface, and reflected by the first reflective surface toward the light emission side of the light guide component.

[0006] In one embodiment, the first reflective surface is planar, and the angle between the first reflective surface and the first wall surface is β, satisfying: 30°≤β≤60°; and / or, the second reflective surface is planar, and the angle between the second reflective surface and the second wall surface is α, satisfying: 30°≤α≤60°.

[0007] In one embodiment, 45°≤β≤60°, 30°≤α≤45°, and β≥α.

[0008] In one embodiment, the Z-axis direction is parallel to the direction of gravity, and the first wall and the second wall are arranged sequentially along the direction of gravity.

[0009] In one embodiment, in the X-axis direction, the second wall extends to the side of the second reflective surface away from the light-incident end of the light guide component, and the X-axis direction is parallel to the main light-out direction of the light guide component.

[0010] In one embodiment, in the X-axis direction, the portion of the second wall surface located on the side of the second reflective surface away from the light-incident end of the light guide component has a dimension of L1, and the dimension of the second reflective surface is L2, satisfying: 2 / 3≤L1 / L2≤3 / 2.

[0011] In one embodiment, the first reflective surface is curved, and the curved surface is convex outward toward the light-emitting side of the light guide component; the curvature of the curved surface gradually increases in the main light-emitting direction of the light guide component.

[0012] In one embodiment, the bracket and the light guide component are separately arranged, and the first wall surface is parallel to the second wall surface.

[0013] According to another aspect of this application, a vehicle lamp is provided, including any of the optical modules described above.

[0014] According to another aspect of this application, a vehicle is provided, including the aforementioned vehicle lights.

[0015] Compared with the prior art, this application has the following beneficial effects: the shape of the shaped groove is projected onto the light-emitting side through the first reflective surface and the second reflective surface, which enriches the visual performance layer when the headlight is lit. Through the setting of the shape of the shaped groove, the light-emitting side can display a unique light and shadow shape, improve the visual recognition of the appearance, and meet the increasingly high demand for personalized design. In addition, by projecting the shape of the shaped groove on the upper and lower sides of the light-emitting surface of the light guide component, the contrast can be reduced and the visual effect is good. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this application, the relevant drawings will be briefly described below. It is understood that the drawings described below are only for illustrating some embodiments of this application, and those skilled in the art can obtain many other technical features and connections not mentioned herein based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of an optical module provided in an embodiment of this application.

[0018] Figure 2 This is a cross-sectional view of an optical module provided in an embodiment of this application.

[0019] Figure 3 This is a cross-sectional view of another optical module provided in the embodiments of this application.

[0020] Figure 4 This is a schematic diagram of another optical module provided in an embodiment of this application.

[0021] Figure 5 yes Figure 4 Cross-sectional view at point BB.

[0022] Figure 6 This is a cross-sectional view of a dimming component provided in an embodiment of this application.

[0023] In the picture:

[0024] 10. Bracket; 11. Mounting hole; 12. First reflective surface; 13. Second reflective surface;

[0025] 20. Light guide component; 21. First wall surface; 22. Second wall surface; 23. Shaping groove;

[0026] 30. Buckle structure;

[0027] 40. Dimming component; 41. First light guide section; 411. First light emitting surface; 412. First light guide sub-section; 42. Second light guide section; 421. Second light emitting surface; 422. Second light guide sub-section; 4221. Third reflective surface; 42211. Reflective sub-surface; 4222. Second light incident surface; 43. Transition section;

[0028] 51. Initial sub-part; 52. Final sub-part;

[0029] 61. First side; 611. First end; 62. Second side; 621. Second end;

[0030] 70. Connecting wall. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0034] In existing technologies, when vehicle lights are turned on, only the light-emitting surface has a light source, resulting in a monotonous lighting effect that cannot meet the needs of personalized design. At the same time, the significant difference in brightness between the headlights and the surrounding dark environment can easily cause glare to people outside the vehicle, posing a safety hazard.

[0035] To address the aforementioned technical problems, this application provides an optical module, including a bracket and a light guide component. The bracket has mounting holes, and the light guide component is inserted and assembled into the mounting holes. In a three-dimensional coordinate system, the light guide component has a first wall and a second wall opposite to each other along the Z-axis. The second wall has a plurality of shaped grooves, and the Z-axis is perpendicular to the main light emission direction of the light guide component. The bracket has a first reflective surface and a second reflective surface, which are respectively disposed on both sides of the light guide component along the Z-axis. The first reflective surface is opposite to the first wall, and the second reflective surface is opposite to the second wall. Some light rays inside the light guide component are refracted by the groove wall of the shaped groove to the second reflective surface and reflected towards the light emission side of the light guide component. Additionally, some light rays inside the light guide component are reflected by the groove wall of the shaped groove to the first wall, refracted by the first wall to the first reflective surface, and reflected towards the light emission side of the light guide component. By projecting the shape of the shaped groove onto the light-emitting side through the first and second reflective surfaces, the visual layers of the headlights when illuminated are enriched. The design of the shaped groove allows for the display of unique light and shadow patterns on the light-emitting side, enhancing visual recognizability and meeting the growing demand for personalized design. Furthermore, by projecting the shape of the shaped groove onto the upper and lower sides of the light-emitting surface of the light guide component, contrast is reduced, resulting in a better visual effect. This will be explained in detail below.

[0036] See Figure 1-2The optical module includes a bracket 10 and a light guide component 20. The bracket 10 has mounting holes 11, and the light guide component 20 is inserted and assembled into the mounting holes 11. In a three-dimensional coordinate system, the light guide component 20 has a first wall 21 and a second wall 22 arranged opposite each other in the Z-axis direction. The second wall 22 has a plurality of shaped grooves 23, and the Z-axis direction is perpendicular to the main light emission direction of the light guide component 20. The bracket 10 has a first reflective surface 12 and a second reflective surface 13, which are respectively arranged in the Z-axis direction of the light guide component 20. On both sides of the direction, the first reflective surface 12 is opposite to the first wall surface 21, and the second reflective surface 13 is opposite to the second wall surface 22; some light inside the light guide component 20 is refracted by the groove wall of the shaping groove 23 to the second reflective surface 13, and then reflected by the second reflective surface 13 toward the light-emitting side of the light guide component 20; some light inside the light guide component 20 is also reflected by the groove wall of the shaping groove 23 toward the first wall surface 21, and then refracted by the first wall surface 21 to the first reflective surface 12, and then reflected by the first reflective surface 12 toward the light-emitting side of the light guide component 20.

[0037] For ease of explanation, in the following embodiments, the X-axis direction is the front-to-back direction of the vehicle, which is also the main light-emitting direction of the light guide component 20; the Y-axis direction is the left-to-right direction of the vehicle; and the Z-axis direction is the up-to-down direction of the vehicle, which is also the vertical direction.

[0038] In this embodiment, a shaped groove 23 is provided on the second wall surface 22. Light rays from inside the light guide component 20 that are directed toward the shaped groove 23 are partially refracted directly by the shaped groove 23 to the second reflective surface 13, and then reflected towards the light-emitting side of the light guide component 20 by the reflection of the second reflective surface 13. Some of the light rays that are directed toward the shaped groove 23 are also reflected by the shaped groove 23 to the first wall surface 21, refracted by the first wall surface 21 to the first reflective surface 12, and then reflected towards the light-emitting side of the light guide component 20 by the reflection of the first reflective surface 12. The shape of the shaped groove 23 is projected onto the light-emitting side through the first reflective surface 12 and the second reflective surface 13, which enriches the visual performance layers when the headlight is lit. Through the design of the shaped groove 23, the light-emitting side can display a unique light and shadow shape, improve the visual recognition of the appearance, and meet the increasingly high demand for personalized design.

[0039] It is worth mentioning that the first reflective surface 12 and the second reflective surface 13 are arranged on the upper and lower sides of the light guide component 20. When the headlights are lit, they can widen the light emission range (i.e., the light emission range in the Z-axis direction becomes larger), making the headlights more eye-catching at night and improving driving safety. When actually lit, the brightness of the light emission surface of the light guide component 20 is relatively high. If only the light emission surface is lit, the contrast between the high brightness of the light emission surface and the surrounding darker ambient brightness is high (i.e., the difference between light and dark is large), which will be dazzling at night and is not conducive to driving safety. In this application, by projecting the shape groove 23 on the upper and lower sides of the light emission surface of the light guide component 20, the contrast can be reduced and the visual effect is better.

[0040] In addition, by using the opposing surfaces of the bracket 10 and the light guide component 20 as reflective surfaces (first reflective surface 12 and second reflective surface 13), no other structures are required, making the overall assembly simple and cost-effective.

[0041] It should be noted that the shape of the shaped groove 23 is not specifically limited here. The shape design is based on the lighting requirements and can be satisfied as long as the design requirements are met. The light inside the light guide component 20 is the light that enters the light guide component 20 through the light incident surface of the light guide component 20. This light mainly exits through the light emitting surface of the light guide component 20. Some of the light is also directed to the first reflective surface 12 and the second reflective surface 13 respectively by adjusting the groove wall of the shaped groove 23. This will not be described in detail here.

[0042] See Figure 3 The first reflecting surface 12 is planar, and the angle between the first reflecting surface 12 and the first wall surface 21 is β, satisfying: 30°≤β≤60°; and / or, the second reflecting surface 13 is planar, and the angle between the second reflecting surface 13 and the second wall surface 22 is α, satisfying: 30°≤α≤60°.

[0043] For ease of explanation, a reference surface perpendicular to the X-axis direction (i.e., the main light-emitting direction of the light guide component 20) is defined as the projection surface η. The projection surface η is set on the light-emitting side of the light guide component 20. In the following embodiments, the lighting is illustrated by the light being projected onto the projection surface η. In the following embodiments, the first wall surface 21 is set above the second wall surface 22.

[0044] When β is less than 30°, the first reflecting surface 12 tends to be horizontally positioned (in this embodiment, the first wall surface 21 is horizontally positioned as an example, and the same applies below). The projection range of the first reflecting surface 12 on the projection surface η is small, that is, the projection range (vertical dimension) of the light reflected by the first reflecting surface 12 on the projection surface η is small, which means the illuminated area is small. The distance between the projections of two adjacent shaping grooves 23 is small, the projected patterns are too compact, the visual effect is average, and in Figure 3 From the perspective of the light reflected by the first reflecting surface 12, the light will be deflected to the lower left. In the vehicle headlight application embodiment, the observation position of the person outside the vehicle is generally higher than the headlight, and the downward light is not conducive to being observed.

[0045] When the value of β is greater than 60°, the first reflective surface 12 tends to be vertically set, and the projection range of the first reflective surface 12 on the projection surface η is large. That is, the projection range of the light reflected by the first reflective surface 12 on the projection surface η is large, which means that the distance between the projections of two adjacent shaped grooves 23 is too large, the projected pattern is too sparse, and the visual effect is average. At the same time, when the value of β is greater than 60°, the first reflective surface 12 will occupy more space in the Z-axis direction, which is not conducive to the flat design of the headlight.

[0046] In summary, when 30°≤β≤60°, it can ensure that the spacing between the projections of adjacent shaped grooves 23 is reasonable and the visual effect is good, while also ensuring that there is a reasonable lighting range (the range size in the vertical direction) without occupying too much space in the Z-axis direction.

[0047] The value of α is similar to that of β. It is worth mentioning that when the value of α is less than 30°, the light reflected by the second reflecting surface 13 will be deflected to the upper left. This will not be elaborated further here.

[0048] It should be noted that the values ​​of α and β outside the above-mentioned range also fall within the protection scope of this application. For example, when the value of α is greater than 60°, the light reflected by the second reflecting surface 13 is emitted downward and to the lower left, which can illuminate the ground near the vehicle and improve the illumination near the vehicle at night. It is not limited to this, and the relevant angles can be set according to actual usage needs.

[0049] In some embodiments, 45°≤β≤60°, 30°≤α≤45°, and β≥α.

[0050] In this embodiment, the first wall 21 and the second wall 22 are arranged sequentially along the direction of gravity for discussion, that is, the first wall 21 is located on top of the second wall 22; according to the analysis of the aforementioned embodiment, the larger the value of β, the more the light is emitted to the upper left ( Figure 3 (View angle, the same below) Similarly, the smaller the value of α, the more the light rays are emitted to the upper left. That is, within the above value range, the light rays reflected by the first reflecting surface 12 and the second reflecting surface 13 are emitted to the upper left, making them easier for people outside the vehicle to observe and improving visual recognition. This will not be elaborated here.

[0051] It is worth mentioning that in some embodiments, the angle can be 45°≤α≤60° and 30°≤β≤45°. In this case, the light reflected by the first reflective surface 12 and the second reflective surface 13 will propagate more to the lower left, which can illuminate the area near the vehicle body and improve nighttime driving safety. The relevant settings can be made according to actual usage needs, which will not be elaborated here.

[0052] In some embodiments, the Z-axis direction is parallel to the gravity direction, and the first wall surface 21 and the second wall surface 22 are arranged sequentially along the gravity direction.

[0053] In this embodiment, the first wall surface 21 is located above the second wall surface 22, that is, the shaped groove 23 is located on the bottom second wall surface 22. In the actual product embodiment, the height at which the human eye observes is higher than the installation height of the product (vehicle headlight), making it difficult for the human eye to observe the shaped groove 23, thus improving the overall aesthetics and visual effect.

[0054] In some embodiments, in the X-axis direction, the second wall surface 22 extends to the side of the second reflective surface 13 away from the light-incident end of the light guide component 20, and the X-axis direction is parallel to the main light-out direction of the light guide component 20.

[0055] The second wall 22 extends to the side of the second reflective surface 13 away from the side of the guide tube where the light-inlet end is not visible, that is, the second wall 22 extends to the left side of the second reflective surface 13. Figure 3 (View angle), that is, the second wall 22 will have a part protruding from the second reflective surface 13. When lit, the part of the second wall 22 located on the left side of the second reflective surface 13 will have light shining directly downward (light light refracted downward through the groove wall of the shaped groove 23). This part of the light does not pass through the second reflective surface 13 (the second reflective surface 13 is shorter in the X-axis direction). That is, this part of the light can illuminate the area near the vehicle body, improve the illumination near the vehicle body at night, and help drive safely at night.

[0056] In some embodiments, in the X-axis direction, the portion of the second wall 22 located on the side of the light guide component 20 opposite to the second reflective surface 13 has a dimension of L1, and the second reflective surface 13 has a dimension of L2, satisfying: 2 / 3≤L1 / L2≤3 / 2.

[0057] When the value of L1 / L2 is less than 2 / 3, the portion of the second wall 22 protruding from the second reflective surface 13 is smaller, meaning less light is emitted directly downwards, which is detrimental to illumination near the vehicle body. Simultaneously, the smaller portion of the second wall 22 protruding from the second reflective surface 13 also indicates that the second reflective surface 13 is positioned to the left (…). Figure 3 With a relatively long viewing angle, in the vehicle headlight application embodiment, the second reflective surface 13 is easily observed by the human eye outside the vehicle. The light guide component 20 (i.e. the second wall 22) has a generally poor blocking effect on the second reflective surface 13, resulting in a generally poor visual effect.

[0058] When the value of L1 / L2 is greater than 3 / 2, the size of the second reflecting surface 13 in the X-axis direction is smaller, that is, the second reflecting surface 13 receives less light and the light utilization rate is poor.

[0059] See Figure 2 The first reflective surface 12 is curved and protrudes outward toward the light-emitting side of the light guide component 20; the curvature of the surface gradually increases in the main light-emitting direction of the light guide component 20.

[0060] In this embodiment, the first reflective surface 12 is... Figure 2 The curved surface shown diffuses light from the first reflective surface 12 to a wider viewing angle, making it easier to observe in vehicle headlight applications, thus improving visibility and enhancing driving safety.

[0061] It should be noted that the β angle discussed in the previous embodiments may be the angle between the tangent of the curved surface and the first wall surface 21 in this embodiment, which will not be discussed here.

[0062] In addition, the curvature of the surface gradually increases, that is, the angle between the tangent of the surface and the first wall 21 gradually increases along the main light output direction of the light guide component 20.

[0063] In some embodiments, the bracket 10 and the light guide component 20 are separately disposed, and the first wall surface 21 is parallel to the second wall surface 22.

[0064] When the bracket 10 and the light guide component 20 are integrally formed, a demolding angle needs to be reserved on the light guide component 20, which will occupy space in the Z-axis direction. However, in this embodiment, the first wall 21 is parallel to the second wall 22, so there is no need to reserve a demolding angle. This is beneficial to reduce the space occupied by the optical module in the Z-axis direction and is also beneficial to the arrangement of other components in the vehicle light.

[0065] It is worth mentioning that the bracket 10 and the light guide component 20 are set separately, which can be processed separately, reducing the difficulty of production and improving production efficiency.

[0066] It should be noted that in the actual assembly process, the light guide component 20 and the bracket 10 can be connected by laser welding. In order to ensure the stability of the relative position between the light guide component 20 and the bracket 10 during the welding process, a snap-fit ​​structure 30 can be set between them to ensure temporary relative stability. Of course, in the actual production process, other methods can also be used for fixing, which will not be elaborated here.

[0067] See Figure 4-6 The optical module also includes a dimming component 40, which is disposed on the light-incident side of the light guide component 20. The dimming component 40 has a first light-emitting surface 411 and a second light-emitting surface 421 that are interconnected and angled together. In a three-dimensional coordinate system, the main light-emitting direction of the dimming component 40 is parallel to the X-axis direction. The dimming component 40 includes a first light guide portion 41 and a second light guide portion 42. The first light guide portion 41 includes a plurality of first light guide sub-parts 412 arranged sequentially along the Y-axis direction. The sub-parts 412 are arranged in a staggered manner in the X-axis direction, and the light-emitting surfaces of the multiple first light-guiding sub-parts 412 constitute the first light-emitting surface 411; the second light-guiding part 42 is disposed at one end of the first light-guiding part 41 in the Y-axis direction, and the second light-guiding part 42 includes at least one second light-guiding sub-part 422, and the light-emitting surface of at least one second light-guiding sub-part 422 constitutes the second light-emitting surface 421; in the X-axis direction, the maximum size of the second light-guiding sub-part 422 is smaller than the minimum size of the first light-guiding sub-part 412.

[0068] For ease of explanation, in the following embodiments, the X-axis direction is the front-to-back direction of the vehicle, which is also the main light-emitting direction of the dimming component 40 (i.e., the main light-emitting direction of the first light guide 41 and the second light guide 42), the Y-axis direction is the left-to-right direction of the vehicle, and the Z-axis direction is the up-to-down direction of the vehicle, which is also the vertical direction. In the following embodiments, the second light guide 42 is described as having a second light guide sub-part 422, and the second light-emitting surface 421 corresponding to the second light guide 42 is perpendicular to the X-axis direction. In other embodiments, multiple second light guide sub-parts 422 can be arranged sequentially along the Y-axis direction, and the second light-emitting surface 421 can also be set at a certain angle to the X-axis direction to ensure that the main light-emitting direction is parallel to the X-axis direction. These details will not be elaborated here.

[0069] Multiple first light guide sub-units 412 are arranged sequentially along the Y-axis and staggered sequentially along the X-axis, that is, the first light guide portion 41 formed by splicing multiple first light guide sub-units 412 is inclined (e.g., Figure 6 (As shown in the perspective, the same below); At the same time, the second light guide 42 is disposed at one end of the first light guide 41 in the Y-axis direction, and the maximum dimension of the second light guide sub-part 422 of the second light guide 42 in the X-axis direction is smaller than the minimum dimension of the first light guide sub-part 412 in the X-axis direction. That is, the end of the dimming component 40 where the second light guide 42 is disposed is recessed upward, so that the end of the dimming component 40 where the second light guide 42 is disposed forms a narrow end structure, which reduces the space occupied by the dimming component 40 in the X-axis direction, which is conducive to providing sufficient installation space for other components in the headlight. In addition, the end of the dimming component 40 where the second light guide 42 is disposed helps to avoid interference with the surrounding structure, provides clearance space, and is conducive to improving the convenience of assembly.

[0070] To facilitate understanding, the following counterexamples are provided: Figure 6 As shown, the dashed box on the right side of the dimming component 40 represents the conventional arrangement of the dimming component 40, which occupies more space in the X-axis direction compared to the present application (represented by the dimension L3 in the X-axis direction). In the present application, by retracting the second light guide sub-part 422 upward, the overall space occupied by the dimming component 40 in the X-axis direction is shortened (represented by the dimension L4 in the X-axis direction, which is significantly smaller than L3). At the same time, by setting the first light-emitting surface 411 and the second light-emitting surface 421 at an angle, the second light-emitting surface 421 corresponding to the second light guide part 42 is deflected upward (compared to the overall tilted light-emitting surface in the prior art), ensuring the uniformity of the size of the second light guide part 42 in the X-axis direction, which is beneficial to improving the uniformity of illumination.

[0071] It is worth mentioning that the main light-emitting directions of the first light guide 41 and the second light guide 42 are both parallel to the X-axis direction, and the light propagation direction is consistent. This helps to avoid light crosstalk interference between different light-emitting surfaces (the first light-emitting surface 411 and the second light-emitting surface 421) and improves the overall lighting uniformity.

[0072] In addition, in this embodiment, by limiting the size of the second light guide 42 in the X-axis direction, the overall volume of the corner area of ​​the dimming component 40 is compressed from the structural source. The light guide functional area does not need to be reduced or the overall light-emitting area needs to be changed, so the dimming component 40 can be made lightweight and miniaturized. This setting helps to reduce the space occupied by the dimming component 40 in the vehicle headlight and vehicle mounting position, and also reduces the material consumption in the production of the dimming component 40, which is conducive to the overall lightweight design and reduces production costs.

[0073] It should be noted that the first light-emitting surface 411 and the second light-emitting surface 421 are set at an angle, which is not equal to 180°.

[0074] In some embodiments, the first light guide sub-parts 412 located at both ends of the first light guide portion 41 in the Y-axis direction are the initial sub-part 51 and the final sub-part 52; in the X-axis direction, the light emitting surface corresponding to the initial sub-part 51 is disposed on the side opposite to the light emitting surface corresponding to the final sub-part 52; in the direction from the initial sub-part 51 toward the final sub-part 52, the minimum size of each first light guide sub-part 412 in the X-axis direction gradually decreases.

[0075] To facilitate understanding, it should first be noted that each first photoguide section 412 has a light input end, that is, in Figure 6 Below the viewing angle (the same below); at the same time, a reference plane η perpendicular to the X-axis direction is set, and the reference plane η is set on the light-emitting side (above) of the dimming component 40.

[0076] In this embodiment, the light-emitting surface corresponding to the initial sub-part 51 is located above the light-emitting surface corresponding to the end sub-part 52 (i.e., on the side away from the light-incident end of the end sub-part 52). That is, the initial sub-part 51 is closer to the reference surface η than the end sub-part 52. In the direction from the initial sub-part 51 to the end sub-part 52 (from left to right), the distance between the first light-emitting surface 411 corresponding to the first light guide part 41 and the reference surface η (the distance in the X-axis direction) gradually increases. In other words, in this direction (from left to right), the propagation distance of the light corresponding to each first light guide sub-part 412 gradually increases, and the light loss due to the distance propagation gradually increases. At the same time, in the direction from left to right, the minimum size of each first light guide sub-part 412 in the X-axis direction gradually decreases. That is, the medium propagation distance of the light corresponding to each first light guide sub-part 412 (the size of the first light guide sub-part 412 in the X-axis direction) gradually decreases, and the light loss due to the medium propagation gradually decreases.

[0077] In this embodiment, by gradually reducing the size of the first photoguide part 412 in the X-axis direction, the propagation loss of light in the medium is reduced, so as to balance the high loss caused by long-distance propagation. This offsets the gains and losses, which helps to improve the overall lighting uniformity and avoid large differences in brightness between the left and right ends.

[0078] It is worth mentioning that the size of the first light guide sub-part 412 gradually decreases from left to right, that is, the first light guide sub-part 41 has a gradually narrowing gradient structure, which is beneficial to reduce the overall volume occupied in the X-axis direction. At the same time, in some embodiments, the second light guide sub-part 42 is located on the side of the end sub-part 52 away from the initial sub-part 51. The size difference between the end sub-part 52 and the second light guide sub-part 42 in the X-axis direction is small, which is beneficial to reduce the brightness difference between the two, that is, to improve the uniformity of illumination.

[0079] In some embodiments, the second light guide portion 422 has a third reflective surface 4221 and a second light incident surface 4222. The second light incident surface 4222 is disposed on one side of the second light guide portion 422 in the Z-axis direction. The third reflective surface 4221 and the second light emitting surface 421 are spaced apart in the X-axis direction. The third reflective surface 4221 is divided into a plurality of reflective sub-surfaces 42211 along the Z-axis direction. Two adjacent reflective sub-surfaces 42211 are referred to as a first surface 61 and a second surface 62. In the Z-axis direction, the first surface 61 and the second surface 62 are spaced apart. The end of the first surface 61 near the second surface 62 is the first end 611, and the end of the second surface 62 near the first surface 61 is the second end 621. The first end 611 is disposed between the second end 621 and the second light emitting surface 421.

[0080] The second light-incident surface 4222 is used to receive light emitted from the light source (LED bead) and direct the light towards the third reflective surface 4221. The light is then reflected by the third reflective surface 4221 and emitted towards the second light-exiting surface 421. In the X-axis direction, the first surface 61 and the second surface 62 are arranged at intervals, with the first end 611 of the first surface 61 located between the second end 621 of the second surface 62 and the second light-exiting surface 421. Figure 5 From a visual perspective, the second end 621 is positioned to the left of the first end 611, forming an overlapping, stepped reflective surface; with this configuration, a portion of the second surface 62 near the first surface 61 will not receive light emitted from the light source (e.g., Figure 5 The area shown in H is blocked by the first surface 61 and cannot receive light from the light source. This reduces the overall light reception efficiency of the third reflective surface 4221, thereby reducing the light output brightness of the second light guide 42. This balances the excessive brightness caused by the short medium propagation distance of the second light guide 42 (second light guide sub-part 422) in the X-axis direction, which helps to improve the uniformity of overall illumination.

[0081] It is worth mentioning that by setting the reflective surfaces in a stepped manner to stagger the various reflective sub-surfaces 42211, the optical paths of the various reflective sub-surfaces 42211 can be prevented from interfering with each other, which is also conducive to improving the uniformity of the overall illumination.

[0082] In some embodiments, the dimming component 40 further includes a transition portion 43, which is disposed between the first light guide portion 41 and the second light guide portion 42; in the X-axis direction, the maximum size of the transition portion 43 is smaller than the minimum size of the first light guide portion 412, and the minimum size of the transition portion 43 is larger than the maximum size of the second light guide portion 422.

[0083] The transition section 43 facilitates a smooth transition from the first light guide section 41 to the second light guide section 42, avoiding abrupt changes in structure (size in the X-axis direction). It also helps to avoid a large brightness contrast between the first light-emitting surface 411 and the second light-emitting surface 421, resulting in more uniform and continuous overall illumination.

[0084] It is worth mentioning that the provision of the transition section 43 helps to increase the structural strength between the first light guide section 41 and the second light guide section 42 (when the size difference between the first light guide section 41 and the second light guide section 42 in the X-axis direction is large, it is easy to break at the connection between the two), thus improving the service life of the product.

[0085] In some embodiments, a connecting wall 70 is formed between the first light guide portion 412 near the second light guide portion 42 and the second light guide portion 42 near the first light guide portion 41, and the connecting wall 70 is provided with a textured structure.

[0086] In this embodiment, by providing a textured structure on the connecting wall 70, light cannot pass through the connecting wall 70, which can effectively prevent direct crosstalk between the first light guide 41 and the second light guide 42, and is beneficial to improving the uniformity of overall lighting.

[0087] In some embodiments, the connecting wall 70 is disposed on the transition portion 43, which will not be described in detail here.

[0088] In some embodiments, the first light-emitting surface 411 is provided with a first diffusion pattern, and the second light-emitting surface 421 is provided with a second diffusion pattern, wherein the diffusion rate of the first diffusion pattern is lower than the diffusion rate of the second diffusion pattern.

[0089] In this embodiment, the second light-emitting surface 421 corresponds to the second light guide part 42. The second light guide sub-part 422 of the second light guide part 42 has a smaller size in the X-axis direction, that is, the distance the light travels in the medium is shorter. The light intensity emitted through the second light-emitting surface 421 is high, which easily forms bright spots, and the difference in brightness between it and the first light-emitting surface 411 is too large. This application uses a second diffusion pattern with a large diffusion rate to fully diffuse the light, which helps to avoid bright spots and also helps to improve the overall lighting uniformity.

[0090] Similarly, the first diffusion pattern has a smaller diffusion rate, which avoids the second light-emitting surface 421 (the second light-emitting surface 421 has a larger size in the X-axis direction, and the light will be lost due to the long medium propagation, resulting in lower brightness) emitting light intensity, which is beneficial to improving the overall lighting uniformity.

[0091] On the other hand, this application also relates to a vehicle light, including any of the aforementioned optical modules.

[0092] On the other hand, this application also relates to a vehicle including the aforementioned headlights.

[0093] In the various embodiments of this application, unless otherwise specified or logically conflicting, the terminology or descriptions between different embodiments are consistent and can be referenced mutually. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships. In this application, "at least one" means one or more, and "more than one" means two or more.

[0094] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0095] The technical subject matter provided by the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand this application and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An optical module, characterized in that, The system includes a bracket and a light guide component. The bracket has mounting holes, and the light guide component is inserted and assembled into the mounting holes. In a three-dimensional coordinate system, the light guide component has a first wall and a second wall that are arranged opposite to each other in the Z-axis direction. The second wall is provided with a plurality of grooves, and the Z-axis direction is perpendicular to the main light output direction of the light guide component. The bracket has a first reflective surface and a second reflective surface, which are respectively disposed on both sides of the light guide component in the Z-axis direction. The first reflective surface is opposite to the first wall surface, and the second reflective surface is opposite to the second wall surface. Some of the light inside the light guide component is refracted through the groove wall of the shaping groove to the second reflective surface, and then reflected by the second reflective surface toward the light-emitting side of the light guide component; Inside the light guide component, some light is reflected by the groove wall of the shaped groove and directed toward the first wall surface. This light is refracted by the first wall surface to the first reflective surface, and then reflected by the first reflective surface toward the light-emitting side of the light guide component.

2. The optical module as described in claim 1, characterized in that, The first reflective surface is planar, and the angle between the first reflective surface and the first wall surface is β, satisfying: 30°≤β≤60°; And / or, The second reflective surface is planar, and the angle between the second reflective surface and the second wall surface is α, which satisfies: 30°≤α≤60°.

3. The optical module as described in claim 2, characterized in that, 45°≤β≤60°, 30°≤α≤45°, and β≥α.

4. The optical module as described in claim 1, characterized in that, The Z-axis is parallel to the direction of gravity, and the first wall and the second wall are arranged sequentially along the direction of gravity.

5. The optical module as described in claim 4, characterized in that, In the X-axis direction, the second wall extends to the side of the second reflective surface away from the light-incident end of the light guide component, and the X-axis direction is parallel to the main light-out direction of the light guide component.

6. The optical module as described in claim 5, characterized in that, In the X-axis direction, the portion of the second wall surface located on the side of the second reflective surface away from the light-incident end of the light guide component has a dimension of L1, and the dimension of the second reflective surface is L2, satisfying: 2 / 3≤L1 / L2≤3 / 2.

7. The optical module as described in claim 4, characterized in that, The first reflective surface is curved, and the curved surface is convex outward toward the light-emitting side of the light guide component; In the main light-emitting direction of the light guide component, the curvature of the surface gradually increases.

8. The optical module as described in claim 1, characterized in that, The bracket and the light guide component are separate, and the first wall surface is parallel to the second wall surface.

9. A vehicle light, characterized in that, Includes the optical module as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Including the vehicle lights as described in claim 9.

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