Double-color-temperature lamp bead and light emitting adjusting method thereof

Abstract

The invention relates to the technical field of vehicle lighting equipment, in particular to a double-color-temperature lamp bead and a light emitting adjusting method thereof.The double-color-temperature lamp bead comprises a bearing frame, a first light assembly and a second light assembly; a first groove and a second groove are formed in the bearing frame, and the first groove and the second groove are adjacent to each other; the light-emitting end of the first optical assembly is arranged in the first groove, and the light-emitting end of the second optical assembly is arranged in the second groove. The opening angle of the notch of the first groove is within a first preset range so as to form a narrow-opening structure; the distance between the groove bottom and the groove opening of the second groove is within a second preset depth range, so that a deep concave structure is formed. The total size and the manufacturing cost of the lamp are reduced, the complexity of the structure is reduced, the situation that lamplight display is disordered or signal transmission is not accurate is avoided, the optical requirements during display of the steering state and the automatic driving state can be met, and the safety risk is greatly reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle lighting equipment, and in particular relates to a dual-color temperature lamp bead and a light-emitting adjustment method thereof. Background Art

[0002] As the automotive industry rapidly develops toward intelligent and automated driving, autonomous driving technology is gradually moving from concept to reality and is widely used in various vehicles. Safety during the use of autonomous driving technology is a key factor that requires attention to prevent major safety accidents.

[0003] Existing autonomous driving technologies generally utilize multiple LEDs on a vehicle, each providing separate reminders for steering and autonomous driving functions. By displaying the vehicle's operating mode to the outside world, other drivers can be alerted and mitigate safety risks. However, the separate assembly of multiple LEDs not only increases the size and cost of the lamp, but also complicates wiring due to the independence of the multiple LEDs. This can easily lead to confusing lighting displays or inaccurate signal transmission, posing a serious threat to traffic safety. While phosphor coating technology can enable a single LED to display two colors, distinguishing the vehicle's steering and autonomous driving states through different luminescent colors is insufficient in practical applications to fully meet the optical requirements for displaying both steering and autonomous driving states. This increases the likelihood that other drivers will misjudge the displayed vehicle's operating mode, posing a significant safety risk. Summary of the Invention

[0004] In response to the above problems, the present invention proposes a dual-color temperature lamp bead, comprising: A carrier frame is provided with a first groove and a second groove, wherein the first groove and the second groove are adjacent to each other; a first optical component and a second optical component, wherein the light emitting end of the first optical component is disposed in the first groove, and the light emitting end of the second optical component is disposed in the second groove; The opening angle of the notch of the first groove is within a first preset range to form a narrow mouth structure; The distance between the groove bottom and the groove opening of the second groove is within a second preset depth range to form a deep concave structure.

[0005] In some specific embodiments, a distance between a groove edge of the first groove close to the second groove and a groove edge of the second groove close to the first groove is less than 2.5 mm.

[0006] In some specific embodiments, the first groove and the second groove are integrally formed with the supporting frame, so that the optical axis parallelism of the first groove and the second groove is less than or equal to 0.1 degrees.

[0007] In some specific embodiments, the groove wall of the first groove is covered with a reflective layer; A diffuse reflection structure is provided on the groove wall of the second groove.

[0008] In some specific embodiments, the opening angle of the notch of the first groove is the angle between the groove wall of the first groove and the perpendicular line of the groove bottom of the first groove, and the angle is within a first preset range; The first preset range is 30 degrees to 45 degrees.

[0009] In some specific embodiments, the second preset depth range is 1.4 times to 1.6 times the vertical distance between the bottom and the opening of the first groove.

[0010] In some specific embodiments, a heat dissipation channel is provided on the carrier; The heat dissipation channel is located between the first groove and the second groove, one end of the heat dissipation channel is communicated with the first groove, and the other end of the heat dissipation channel is communicated with the second groove.

[0011] In some specific embodiments, the support frame is made of optical material; The reflective layer is made of silver or aluminum.

[0012] In some specific embodiments, the carrier is further provided with: Controller; an ambient light sensor, wherein a detection end of the ambient light sensor is arranged in a direction away from the supporting frame, and an output end of the ambient light sensor is electrically connected to an input end of the controller; The driving circuit has an input end electrically connected to the output end of the controller, and an output end electrically connected to the light-emitting end of the first optical component and the light-emitting end of the second optical component respectively.

[0013] A method for adjusting the light emission of a dual-color temperature lamp bead based on the same concept, using the dual-color temperature lamp bead as described in any of the above specific embodiments, includes the following steps: Obtain the vehicle's operating mode to determine whether the vehicle is in a steering state or an autonomous driving state; When it is determined that the vehicle is in a turning state, the light-emitting end of the first light component is driven to emit light, the light is converged through the narrow structure of the first groove, and the light-emitting end of the second light component is driven to turn off; When it is determined that the vehicle is in the automatic driving state, the light emitting end of the second light assembly is driven to emit light, and the light is diffused through the deep concave structure of the second groove; When the light-emitting end of the second light component emits light, the driving level and ambient brightness of the vehicle are obtained, and the light color depth of the light-emitting end of the second light component is adjusted based on the driving level, and the light brightness of the light-emitting end of the second light component is adjusted based on the ambient brightness.

[0014] Compared to the prior art, the dual-color temperature lamp beads of the present invention have at least the following advantages: by providing the first and second grooves, as well as the first and second optical components, on the carrier frame, dual-color integration is achieved on a single lamp bead. Compared to the original separate combination of multiple lamp beads, the total volume and manufacturing cost of the lamp are greatly reduced. Furthermore, the complexity of the structure is reduced, facilitating installation and wiring, thereby avoiding confusing lighting displays or inaccurate signal transmission, and improving safety. At the same time, by positioning the light-emitting end of the first optical component within the narrow opening structure of the first groove and the light-emitting end of the second optical component within the deep recess structure of the second groove, the optical requirements for displaying the steering state and the autonomous driving state can be met, respectively, so that drivers of other vehicles can make accurate judgments about the operating mode of the displayed vehicle, greatly reducing safety risks.

[0015] Compared to the prior art, the dual-color temperature lamp bead luminescence adjustment method of the present invention has at least the following advantages: because it uses the dual-color temperature lamp bead described above, it has the same beneficial effects as the dual-color temperature lamp bead described above. At the same time, the dual-color temperature lamp bead luminescence adjustment method can respectively converge and diffuse the light from the light-emitting end of the first light component and the light-emitting end of the second light component through the first groove and the second groove, and also control the operating priority of the light-emitting end of the first light component and the light-emitting end of the second light component, and adjust the light color depth and light brightness of the light-emitting end of the second light component, further meeting the optical requirements for displaying the steering state and the automatic driving state, facilitating other vehicle drivers to make accurate judgments about the operating mode of the displayed vehicle, and greatly reducing safety risks.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a dual-color temperature lamp bead in an embodiment of the present invention is shown; Figure 2 A schematic transverse cross-sectional view of a dual-color temperature lamp bead in an embodiment of the present invention is shown; Figure 3 The flowchart of the light emission adjustment method of the dual-color temperature lamp beads in the embodiment of the present invention is shown.

[0019] In the figure, 100 is a supporting frame; 110 is a first groove; 120 is a second groove; 200 is a first optical component; and 300 is a second optical component. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] Reference Figure 1 , an embodiment of the present invention provides a dual-color temperature lamp bead, including: a carrier 100, a first optical component 200 and a second optical component 300. A first groove 110 and a second groove 120 are provided on the carrier 100, and the first groove 110 and the second groove 120 are arranged adjacent to each other. The light-emitting end of the first optical component 200 is arranged in the first groove 110, and the light-emitting end of the second optical component 300 is arranged in the second groove 120. The opening angle of the notch of the first groove 110 is within a first preset range to form a narrow mouth structure. The distance between the groove bottom and the notch of the second groove 120 is within a second preset depth range to form a deep concave structure.

[0022] Specifically, the first groove 110 and the second groove 120 are opened on the same side of the carrier 100, and the first groove 110 and the second groove 120 are adjacent to each other. The light-emitting end of the first optical component 200 is arranged in the first groove 110, and the steering function is displayed by emitting light from the light-emitting end of the first optical component 200. The light-emitting end of the second optical component 300 is arranged in the second groove 120, and the automatic driving function is displayed by emitting light from the light-emitting end of the second groove 120. In this way, two-color integration is achieved on a single lamp bead. Compared with the original separate combination of multiple lamp beads, the total volume and manufacturing cost of the lamp are greatly reduced. In addition, the complexity of the structure is reduced, which facilitates installation and wiring to avoid confusing light displays or inaccurate signal transmission, thereby improving safety. At the same time, by setting the angle limit of the opening angle of the notch of the first groove 110 to be within the first preset range, the first groove 110 is formed into a narrow mouth structure as a whole. By setting the light-emitting end of the first optical component 200 in the narrow mouth structure of the first groove 110, under the action of the narrow mouth structure, when the light-emitting end of the first optical component 200 emits light, the light emitted by the light-emitting end of the first optical component 200 can be subjected to a strong directionality convergence process, thereby ensuring the penetration and clarity of the light emitted by the light-emitting end of the first optical component 200, meeting the optical requirements when displaying the steering state, and By limiting the distance between the bottom and the opening of the second groove 120 to within a second predetermined depth range, the second groove 120 forms a deep concave structure. By positioning the light-emitting end of the second optical component 300 within the deep concave structure of the second groove 120, the deep concave structure allows the light emitted from the light-emitting end of the second optical component 300 to undergo multiple scattering and diffusion processing. This ensures the uniformity and softness of the light emitted by the light-emitting end of the second optical component 300, meeting the optical requirements for displaying the autonomous driving state. By separately meeting the optical requirements for displaying the steering state and the autonomous driving state, drivers of other vehicles can accurately judge the operating mode of the displayed vehicle, greatly reducing safety risks.

[0023] In some specific embodiments of the present invention, referring to Figure 2 The distance between the groove edge of the first groove 110 on the side close to the second groove 120 and the groove edge of the second groove 120 on the side close to the first groove 110 is less than 2.5 mm. Specifically, the first groove 110 and the second groove 120 are integrally formed by the carrier 100, so that the first groove 110 and the second groove 120 are not only arranged adjacent to each other, but also the distance between the groove edge of the first groove 110 on the side close to the second groove 120 and the groove edge of the second groove 120 on the side close to the first groove 110 is limited to less than 2.5 mm, thereby avoiding the visual separation of light signals and improving the efficiency of information transmission.

[0024] In some specific embodiments of the present invention, referring to Figure 2 The first groove 110 and the second groove 120 are integrally formed with the carrier 100, so that the optical axis parallelism of the first groove 110 and the second groove 120 is less than or equal to 0.1 degrees. Specifically, the first groove 110 and the second groove 120 share the same carrier 100, and the carrier 100 is integrally formed with the mold, so that the optical axis parallelism between the first groove 110 and the second groove 120 can be limited to less than 0.1 degrees, thereby eliminating the optical axis deviation caused by the original multiple lamp beads separate combination method.

[0025] In some specific embodiments of the present invention, referring to Figure 1 The groove wall of the first groove 110 is covered with a reflective layer. The groove wall of the second groove 120 is provided with a diffuse reflection structure.

[0026] Specifically, a reflective layer is provided on the walls of the bottom of the first groove. This layer highly reflects the light emitted by the light-emitting end of the first optical component 200, thereby focusing the light and providing a highly directional light output. This ensures the penetration and clarity of the light emitted by the light-emitting end of the first optical component 200, allowing clear identification of turn signals even in rainy, foggy weather or at long distances, thus meeting the optical requirements for displaying the turn status. A diffuse reflective structure is laser-etched on the walls of the second groove 120. This diffuse reflective structure multiplies the light emitted by the light-emitting end of the second optical component 300, thereby diffusing the light and forming a uniform and soft surface light source. This ensures the uniformity and softness of the light emitted by the light-emitting end of the second optical component 300, preventing strong light from directly impinging on the eyes of pedestrians or other vehicle drivers, and meeting the optical requirements for large-area soft color rendering when displaying the autonomous driving status.

[0027] In some specific embodiments of the present invention, referring to Figure 2 The opening angle of the notch of the first groove 110 is the angle between the groove wall of the first groove 110 and the perpendicular line of the groove bottom of the first groove 110, and the angle is within a first preset range. The first preset range is 30 degrees to 45 degrees. Specifically, a perpendicular line is set vertically to the groove bottom of the first groove 110, and the angle between the groove wall of the first groove 110 and the perpendicular line of the groove bottom of the first groove 110 is the opening angle of the notch of the first groove 110, and the angle limit of the angle is set within the first preset range. Among them, the first preset range is between 30 degrees and 45 degrees, so that the first groove 110 forms a narrow structure as a whole, so as to meet the optical requirements when displaying the steering state.

[0028] In some specific embodiments of the present invention, referring to Figure 2 The second preset depth range is from 1.4 times to 1.6 times the vertical distance between the bottom and the opening of the first groove 110. Specifically, the vertical distance between the bottom and the opening of the second groove 120 is greater than or equal to 1.4 times the vertical distance between the bottom and the opening of the first groove 110, and the vertical distance between the bottom and the opening of the second groove 120 is less than or equal to 1.6 times the vertical distance between the bottom and the opening of the first groove 110. That is, when the bottoms of the first groove 110 and the second groove 120 are at the same height, the height of the opening of the second groove 120 is 40% to 60% higher than that of the opening of the first groove 110, thereby achieving a deep concave structure of the second groove 120, which facilitates meeting the optical requirements for displaying the autonomous driving state.

[0029] In some embodiments of the present invention, a heat dissipation channel is provided on the carrier 100 . The heat dissipation channel is located between the first groove 110 and the second groove 120 , with one end of the heat dissipation channel communicating with the first groove 110 and the other end of the heat dissipation channel communicating with the second groove 120 .

[0030] Specifically, a bracket is embedded in the carrier frame 100, and a heat dissipation channel is formed by the bracket. The heat dissipation channel is located between the first groove 110 and the second groove 120, so that one end of the heat dissipation channel extends toward the first groove 110 until it is connected with the first groove 110, and the other end of the heat dissipation channel can extend toward the second groove 120 until it is connected with the second groove 120, so that the heat source between the two functional areas of the first groove 110 and the second groove 120 can be concentrated through the heat dissipation channel, so that uniform heat can be achieved between the first groove 110 and the second groove 120.

[0031] Furthermore, the bracket is made of copper-silver alloy to ensure the efficiency of heat transfer between the first groove 110 and the second groove 120 .

[0032] In some specific embodiments of the present invention, the support frame 100 is made of an optical material. The reflective layer is made of silver or aluminum. Specifically, the support frame 100 is made of an optical material, which not only assists the high refraction of the reflective layer at the first groove 110, but also assists the repeated scattering of the diffuse reflection structure at the second groove 120, thereby ensuring the optical requirements for displaying the steering state and the autonomous driving state respectively. The reflective layer is made of silver or aluminum, thereby ensuring the reflective effect of the reflective layer.

[0033] In some specific embodiments of the present invention, the carrier 100 is further provided with a controller, an ambient light sensor, and a driver circuit. The detection end of the ambient light sensor is positioned away from the carrier 100, and its output is electrically connected to the input of the controller. The input of the driver circuit is electrically connected to the output of the controller, and its output is electrically connected to the light-emitting end of the first optical assembly 200 and the light-emitting end of the second optical assembly 300, respectively.

[0034] Specifically, the output end of the controller is electrically connected to the input end of the driving circuit, the output end of the driving circuit is electrically connected to the light-emitting end of the first optical component 200 and the light-emitting end of the second optical component 300 respectively, and the output end of the ambient light sensor is electrically connected to the input end of the controller.

[0035] The detection end of the ambient light sensor is arranged in a direction away from the carrier 100 and is used to detect the brightness of the environment in which the vehicle is located. When the dual-color temperature lamp beads are actually used, the vehicle sends the operating status to the controller. When the controller determines that the vehicle is in a turning state, the controller sends a corresponding drive instruction to the drive circuit, which drives the light-emitting end of the first light component 200 to emit light and drives the light-emitting end of the second light component 300 to turn off. In this way, the operating priority of the light-emitting end of the first light component 200 and the light-emitting end of the second light component 300 is controlled. That is, when it is determined that the vehicle is in a turning state and the light-emitting end of the first light component 200 is emitting light, the automatic driving function of the vehicle is prohibited from being turned on and the light-emitting end of the second light component 300 is prohibited from emitting light. When the controller determines that the vehicle is in autonomous driving mode, it also sends a corresponding driving instruction to the driving circuit, which drives the light-emitting end of the second light assembly 300 to emit light. At this time, there is no need to drive the light-emitting end of the first light assembly 200 to turn off. That is, when the vehicle is determined to be in autonomous driving mode and the light-emitting end of the second light assembly 300 is illuminated, the vehicle's steering function is still allowed to be used and the light-emitting end of the first light assembly 200 is still allowed to emit light, thereby reducing safety risks.

[0036] Furthermore, when the controller determines that the vehicle is in an autonomous driving state, it simultaneously determines the driving level of the autonomous driving state and adjusts the output voltage level and PWM signal of the driver circuit at the light-emitting end of the second optical component 300 accordingly. For example, when the vehicle's driving level is determined to be level 3, the driver circuit's output voltage level at the light-emitting end of the second optical component 300 is 3.3V, and the output PWM signal is a light green PWM signal, so that the light emitted by the light-emitting end of the second optical component 300 forms a light green light source. When the vehicle's driving level is determined to be level 4, the driver circuit's output voltage level at the light-emitting end of the second optical component 300 is 5V, and the output PWM signal is a dark green PWM signal, so that the light emitted by the light-emitting end of the second optical component 300 forms a dark green light source. This meets the optical requirements for displaying the autonomous driving state, facilitating other drivers' accurate judgment of the driving level of a vehicle in autonomous driving mode, and significantly reducing safety risks.

[0037] At the same time, when the controller determines that the vehicle is in autonomous driving mode, it also synchronously receives detection results from the ambient light sensor to determine the ambient brightness of the vehicle's location and adjusts the output current of the driver circuit at the light-emitting end of the second optical component 300 accordingly. For example, when the ambient brightness of the vehicle's location is high, i.e., during the daytime, the output current of the driver circuit at the light-emitting end of the second optical component 300 is adjusted to 120% of the rated current. When the ambient brightness of the vehicle's location is low, i.e., during the nighttime, the output current of the driver circuit at the light-emitting end of the second optical component 300 is adjusted to 70% of the rated current. This further meets the optical requirements for displaying the autonomous driving mode, facilitating other drivers' accurate judgment of the vehicle's autonomous driving status and significantly reducing safety risks.

[0038] Furthermore, electrode pins are respectively provided in the first groove 110 and the second groove 120 so that the output end of the driving circuit can be electrically connected to the light-emitting end of the first optical component 200 and the light-emitting end of the second optical component 300 through corresponding motor pins.

[0039] Furthermore, the light-emitting end of the first optical component 200 and the light-emitting end of the second optical component 300 are both LED chips, which are easy to install and set up.

[0040] Reference Figure 3, an embodiment of the present invention also provides a method for adjusting the luminescence of a dual-color temperature lamp bead, which uses the dual-color temperature lamp bead as described in any of the specific embodiments above, and includes the following steps: obtaining the operating mode of the vehicle to determine whether the vehicle is in a turning state or an automatic driving state. When it is determined that the vehicle is in a turning state, the light-emitting end of the first light component 200 is driven to emit light, and the light is converged through the narrow mouth structure of the first groove 110, and the light-emitting end of the second light component 300 is driven to turn off. When it is determined that the vehicle is in an automatic driving state, the light-emitting end of the second light component 300 is driven to emit light, and the light is diffused through the deep concave structure of the second groove 120. When the light-emitting end of the second light component 300 is emitting light, the driving level and ambient brightness of the vehicle are obtained, and the light color depth of the light-emitting end of the second light component 300 is adjusted based on the driving level, and the light brightness of the light-emitting end of the second light component 300 is adjusted based on the ambient brightness.

[0041] Through the luminous adjustment method of the dual-color temperature lamp beads, the light of the light-emitting end of the first light component 200 and the light-emitting end of the second light component 300 can be converged and diffused respectively through the first groove 110 and the second groove 120, and the operating priority of the light-emitting end of the first light component 200 and the light-emitting end of the second light component 300 can be controlled, and the luminous color depth and luminous brightness of the light-emitting end of the second light component 300 can be adjusted, further meeting the optical requirements for displaying the steering state and the automatic driving state, facilitating the drivers of other vehicles to make accurate judgments on the operating mode of the vehicle making the display, and greatly reducing safety risks.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual color temperature lamp bead, characterized in that: include: A carrier (100) is provided with a first groove (110) and a second groove (120), wherein the first groove (110) and the second groove (120) are adjacently arranged; A first optical component (200) and a second optical component (300), wherein the light-emitting end of the first optical component (200) is disposed in the first groove (110), and the light-emitting end of the second optical component (300) is disposed in the second groove (120); The opening angle of the notch of the first groove (110) is within a first preset range to form a narrow mouth structure; The distance between the groove bottom and the groove opening of the second groove (120) is within a second preset depth range to form a deep concave structure.

2. The dual color temperature lamp bead according to claim 1, characterized in that: The distance between the groove edge of the first groove (110) close to the second groove (120) and the groove edge of the second groove (120) close to the first groove (110) is less than 2.5 mm.

3. The dual color temperature lamp bead according to claim 1, characterized in that: The first groove (110) and the second groove (120) are integrally formed by the carrier (100), so that the optical axis parallelism of the first groove (110) and the second groove (120) is less than or equal to 0.1 degrees.

4. The dual color temperature lamp bead according to claim 1, characterized in that: The groove wall of the first groove (110) is covered with a reflective layer; A diffuse reflection structure is provided on the groove wall of the second groove (120).

5. The dual color temperature lamp bead according to claim 1, characterized in that: The opening angle of the notch of the first groove (110) is the angle between the groove wall of the first groove (110) and the vertical line of the groove bottom of the first groove (110), and the angle is within a first preset range; The first preset range is 30 degrees to 45 degrees.

6. The dual color temperature lamp bead according to claim 1, characterized in that: The second preset depth range is 1.4 times to 1.6 times the vertical distance between the bottom and the notch of the first groove (110).

7. The dual color temperature lamp bead according to claim 1, characterized in that: The carrier (100) is provided with a heat dissipation channel; The heat dissipation channel is located between the first groove (110) and the second groove (120), one end of the heat dissipation channel is communicated with the first groove (110), and the other end of the heat dissipation channel is communicated with the second groove (120).

8. The dual color temperature lamp bead according to claim 4, characterized in that: The material of the carrier (100) is optical material; The reflective layer is made of silver or aluminum.

9. The dual color temperature lamp bead according to claim 1, characterized in that: The carrier (100) is further provided with: Controller; an ambient light sensor, the detection end of which is arranged in a direction away from the carrier (100), and the output end of which is electrically connected to the input end of the controller; A driving circuit has an input end electrically connected to an output end of the controller, and an output end electrically connected to a light-emitting end of the first optical component (200) and a light-emitting end of the second optical component (300), respectively.

10. A method for adjusting the light emission of a dual-color temperature lamp bead, using the dual-color temperature lamp bead according to any one of claims 1 to 9, characterized in that: The following steps are involved: Obtain the vehicle's operating mode to determine whether the vehicle is in a steering state or an autonomous driving state; When it is determined that the vehicle is in a turning state, the light-emitting end of the first light component (200) is driven to emit light, the light is converged through the narrow mouth structure of the first groove (110), and the light-emitting end of the second light component (300) is driven to turn off; When it is determined that the vehicle is in an automatic driving state, the light-emitting end of the second light component (300) is driven to emit light, and the light is diffused through the deep concave structure of the second groove (120); When the light-emitting end of the second light component (300) emits light, the driving level and ambient brightness of the vehicle are acquired, and the light color depth of the light-emitting end of the second light component (300) is adjusted based on the driving level, and the light brightness of the light-emitting end of the second light component (300) is adjusted based on the ambient brightness.

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