Projection module, vehicle light, control system, vehicle, projection method, and related device

Abstract

A projection module (10), a vehicle light (100), a control system, a vehicle (1000), a projection method, and a related device. The projection module (10) comprises a base (11), a first rotating member (133), a second rotating member (134), a light source (12) and a first reflector (131). The first rotating member (133) is rotatably connected to the base (11), and the first rotating member (133) is capable of rotating around a first axis (1123a) relative to the base (11). The second rotating member (134) is rotatably connected to the first rotating member (133), and the second rotating member (134) is capable of rotating around a second axis (1332b) relative to the first rotating member (133), the second axis (1332b) intersecting the first axis (1123a). The light source (12) is mounted on the base (11), the first reflector (131) is connected to the second rotating member (134), and the first rotating member (133) rotates around the first axis (1123a) relative to the base (11), thereby driving the second rotating member (134) and the first reflector (131) to rotate around the first axis (1123a); and the first axis (1123a) passes through the first reflector (131), and the second rotating member (134) rotates, thereby driving the first reflector (131) to rotate around the second axis (1332b), so as to change the propagation direction of light. The projection module (10) can flexibly adjust the irradiation angle of the vehicle light (100), thereby expanding the illumination field of view.

Description

Projection modules, vehicle lights, control systems, vehicles, projection methods and related devices Technical Field

[0001] This application relates to the field of automotive lighting technology, specifically to a projection module, automotive lighting, control system, vehicle, projection method, and related devices. Background Technology

[0002] With the development of vehicle intelligence, consumers have developed more personalized demands for vehicle lights, such as welcome lights, projected patterns, and light carpets. Currently, pixel headlights used in vehicles have significant advantages in the diversity of welcome patterns and the projection range, showing potential to become the next generation of intelligent welcome projection lights. However, pixel headlights suffer from a relatively small field of view and a limited light projection range. Summary of the Invention

[0003] The embodiments of this application provide a projection module, vehicle headlights, a control system, a vehicle, a projection method, and related devices, which can flexibly adjust the illumination angle of the vehicle headlights, thereby expanding the illumination field of view of the projection module so that the projection module can be applied to more usage scenarios.

[0004] In a first aspect, this application provides a projection module, including a base, a first rotating member, a second rotating member, a light source, and a first reflector.

[0005] A first rotating member is rotatably connected to a base and can rotate relative to the base about a first axis. A second rotating member is rotatably connected to the first rotating member and can rotate relative to the first rotating member about a second axis, which intersects the first axis. A light source is mounted on the base and is used to emit light. A first reflector is connected to the second rotating member and is used to reflect light. The rotation of the first rotating member relative to the base about the first axis can drive the second rotating member and the first reflector to rotate about the first axis, thereby changing the direction of light propagation. The first axis passes through the first reflector. The second rotating member can rotate relative to the first rotating member about the second axis, and can drive the first reflector to rotate about the second axis, thereby changing the direction of light propagation.

[0006] Currently, projection modules need to illuminate different areas in different usage scenarios to provide lighting services to users under various conditions. To adjust the illumination area of ​​the projection module, a transmission component is generally used to change the angle of the light source, thereby changing the path of the light and thus altering the illumination area of ​​the projection module.

[0007] Because of the large size of the light source, it requires a significant amount of space to move during rotation. However, the space available for installing projection modules in typical vehicles is limited. Therefore, the movement of the light source is restricted by the installation space, preventing large-angle adjustments and thus limiting the field of view of the projection module.

[0008] In this embodiment, the position of the light source of the projection module can be fixed relative to the base. When it is necessary to adjust the illumination area of ​​the projection module, the angle of the first reflector can be adjusted, thereby changing the propagation path of the light from the light source and thus changing the illumination area of ​​the projection module. The first reflector can be any reflective plane mirror, etc. The volume of the first reflector is much smaller than the volume of the light source. Therefore, the space required for the first reflector to rotate is small, and the first reflector can make a large angle change in a limited space, thereby changing the illumination area to a greater extent. This allows the illumination area of ​​the projection module to vary over a wide range.

[0009] The first reflector can change its angle in the light path of the light source, thereby changing the direction of light propagation passing through the first reflector. It can deflect the light closer to the vehicle body, allowing the light passing through the first reflector to reach an area closer to the vehicle body, thus expanding the field of view of the projection module.

[0010] When the area around a vehicle can be illuminated, it can be used in vehicle welcome scenarios. As the driver approaches the vehicle, the vehicle can illuminate or project patterns into the path the driver is approaching, which not only helps the driver quickly find their vehicle in a dark environment, but also creates a warm atmosphere and optimizes the user experience.

[0011] When a vehicle is in motion, the light emitted by the light source can create a light carpet effect after passing through the first reflector. The turning light carpet can predict the vehicle's path in real time. As the vehicle is about to change lanes or turn, the light carpet bends accordingly, clearly indicating the vehicle's intention. This not only helps the driver better understand the vehicle's dynamics but also allows surrounding pedestrians and vehicles to react in advance, avoiding collisions.

[0012] The projection module can also adjust the distance and direction of the light in real time, move the light to different directions, or project auxiliary lights to meet various new scenario requirements.

[0013] Since the first axis passes through the first reflector, the first reflector has a small radius of rotation when it rotates around the first axis. Therefore, the position of the first reflector changes little when the first rotating element rotates around the first axis, and the first reflector can remain within the path of the light, preventing it from moving outside the path of the light and losing its function of changing the light path.

[0014] The second rotating component rotates in a different direction than the first rotating component, which allows the angle of the first reflective component to change in different directions. This enables the propagation direction of the light from the projection module to change flexibly in different directions, thereby expanding the field of view of the projection module.

[0015] In one possible implementation, the second axis is located in the plane containing the first reflector.

[0016] In this embodiment, when the first reflector rotates around the second axis, the first reflector can rotate on its own axis. Therefore, the required space for the first reflector to rotate around the second axis is small. Thus, the process of the first reflector rotating around the second axis is not limited by the installation space. Therefore, the first reflector can rotate around the second axis at a large angle, thereby changing the illumination area to a large extent, so that the illumination area of ​​the projection module can vary within a large range.

[0017] In one possible implementation, the projection module further includes a second reflector located in the optical path between the light source and the first reflector. The second reflector is capable of receiving light emitted by the light source and reflecting the light back to the first reflector.

[0018] In this embodiment, the second reflector can be fixed relative to the base, and light propagates towards the first reflector after passing through the second reflector. Since the position of the first reflector can move within a small range, or the center point of the first reflector can be fixed relative to the second reflector, the first reflector can always receive and reflect the light reflected by the second reflector when its angle changes.

[0019] In one possible implementation, the base includes a first mounting body and a second mounting body, the first mounting body and the second mounting body are bent and connected, the first mounting body is provided with a light source hole, and the light source hole penetrates the first mounting body along the thickness direction of the first mounting body;

[0020] The light source passes through the light source hole of the first mounting body and can emit light towards the side of the first mounting body facing the second mounting body. The first rotating member is rotatably connected to the surface of the second mounting body facing the first mounting body.

[0021] In this embodiment, the first mounting body of the base provides a mounting position for the light source and the second reflector. The second mounting body of the base can provide a mounting position for the first reflector, and for the first rotating component and the second rotating component that drive the first reflector. The base is bent to avoid the light source, the second reflector, the first rotating component, the second rotating component, and the first reflector being laid flat, thus improving the space utilization of the projection module.

[0022] In addition, because the first and second mounting bodies are bent and connected, there can be a gap between the first reflector mounted on the second mounting body and the first mounting body. Part of the light source structure can be located in this gap. The light emitted by the light source can be transmitted to the first reflector through the second reflector. The path of light propagation is shorter, thereby avoiding the weakening of light intensity during the propagation process due to the absorption, scattering and diffusion of light by the medium.

[0023] In one possible implementation, the first rotating part includes a rotating body, a first support arm, and a second support arm. The rotating body is rotatably connected to a second mounting body. The first and second support arms are bent and connected to opposite ends of the rotating body, extending away from the second mounting body. A second rotating member is connected between the first and second support arms.

[0024] In this embodiment, the space between the first support arm and the second support arm can be used to connect the second rotating member. The first support arm and the second support arm can provide a certain distance between the second rotating member and the rotating body of the first rotating member, thus avoiding interference between the second rotating member and the rotating body of the first rotating member during rotation.

[0025] In one possible implementation, the second rotating member includes a mounting portion, a first rotating portion, and a second rotating portion. The first rotating portion and the second rotating portion are respectively connected to opposite sides of the mounting portion. The first rotating portion is rotatably connected to the end of the first support arm away from the rotating body, and the second rotating portion is rotatably connected to the end of the second support arm away from the rotating body. The mounting portion is connected to the first reflector.

[0026] In this embodiment, the first reflector is mounted on the mounting part in the middle of the second rotating part. When the two ends of the second rotating part rotate, the first reflector located between the second rotating parts can be rotated.

[0027] When the first rotating part of the second rotating component is subjected to a load or resistance, a reverse torque is generated, causing the rotation of the second rotating component to become unstable. Using a second support arm to support the second rotating part reduces the vibration and swaying of the second rotating component caused by uneven or sudden loads, thus maintaining the rotational stability of the second rotating component.

[0028] In one possible implementation, the projection module includes a first motor and a first worm gear. The first motor is connected to a second mounting body and the first worm gear is connected. The first motor can drive the first worm gear to rotate.

[0029] The first rotating component also includes a first gear section, which is connected to the rotating body and meshes with a first worm.

[0030] The first motor can drive the first worm gear to rotate, thereby driving the first gear section to rotate, and in turn driving the rotating body to rotate.

[0031] In one possible implementation, the projection module includes a second motor and a second worm gear. The second motor is connected to the first support arm and the second worm gear is connected. The second motor can drive the second worm gear to rotate.

[0032] The second rotating component also includes a first gear section, which is connected to the first rotating component, and the second gear section meshes with the second worm.

[0033] The second motor can drive the second worm gear to rotate, thereby driving the second gear section to rotate, which in turn drives the mounting section to rotate.

[0034] In this embodiment, the first motor and the second motor can automatically rotate the first rotating component and the second rotating component. The high-precision control capability of the motor ensures that when the worm gear rotates, the first rotating component and the second rotating component move along a predetermined trajectory and speed, thereby making the rotation angle of the first reflector more accurate, so as to make the positioning of the illumination area of ​​the projection module more accurate and improve the user experience.

[0035] In one possible implementation, the projection module further includes a second reflector bracket connected to the surface of the first mounting body facing the second mounting body. The second reflector is fixed to the second reflector bracket and is opposite to the light source.

[0036] In one possible implementation, the second reflector bracket includes a base connecting portion and a reflector connecting portion. The base connecting portion is connected to the first mounting body and has a light source receiving hole that communicates with the light source hole, with a portion of the light source located within the light source receiving hole. The reflector connecting portion is connected to the side of the base connecting portion opposite to the first mounting body and is connected to the second reflector.

[0037] Secondly, this application also provides a vehicle light, including a controller and a projection module as described above, wherein the controller can control a first rotating member and a second rotating member to drive the first reflector to move.

[0038] Thirdly, this application also provides a control system, including a controller and the above-mentioned projection module, wherein the controller is capable of controlling the first rotating member and the second rotating member to drive the first reflector to move.

[0039] Fourthly, this application also provides a vehicle, including a vehicle body, a controller, and a projection module as described above. Both the controller and the projection module are installed on the vehicle body. The controller is capable of controlling the first rotating member and the second rotating member to drive the first reflector to move.

[0040] Fifthly, this application provides a projection method applied to a vehicle, the vehicle including the projection module as described above, the projection method including:

[0041] In a first scene mode based on a vehicle, the first reflector of the control projection module rotates around a first axis and / or a second axis so that light passing through the first reflector is projected onto a first projection area, wherein the first axis passes through the first reflector and the second axis intersects with the first axis.

[0042] In one possible implementation, the projection method further includes:

[0043] In the second scene mode based on the vehicle, the first reflector of the control projection module rotates around the first axis and / or the second axis so that the light passing through the first reflector is projected onto the second projection area, which is different from the first projection area.

[0044] In one possible implementation, based on a first scene mode of a vehicle, controlling the rotation of the first reflector of the projection module about a first axis and / or a second axis includes:

[0045] Based on the first scene mode of transportation, determine the projection area;

[0046] Based on the first projection area, generate projection instructions;

[0047] Based on the projection command, the first reflector of the projection module is controlled to rotate around the first axis and / or the second axis.

[0048] In one possible implementation, the first projection region includes a first sub-region and a second sub-region;

[0049] Based on projection commands, the first reflector of the projection module is controlled to rotate around a first axis and / or a second axis, so that light rays passing through the first reflector are projected onto the first projection area, including:

[0050] Based on the projection command, the first rotating component and / or the second rotating component of the projection module are controlled to drive the first reflector to move by a first angle, so that the light passing through the first reflector is projected onto the first sub-region;

[0051] Based on the projection command, the first rotating component and / or the second rotating component of the projection module are controlled to move the first reflector to a second angle so that the light passing through the first reflector is projected onto the second sub-region; the first angle and the second angle are different, and the first sub-region and the second sub-region are different.

[0052] Sixthly, this application also provides a projection device, including a processor for performing the method described above.

[0053] In a seventh aspect, this application also provides a chip including logic circuitry and an interface, wherein the logic circuitry and the interface are coupled.

[0054] The interface is used to input and / or output information, and the logic circuit is used to execute the methods described above.

[0055] Eighthly, this application also provides a mobile terminal, including the projection device as described above, or the chip as described above.

[0056] Ninthly, this application prefers to provide a computer-readable storage medium for storing a computer program, wherein when the computer program is executed, the method described above is performed.

[0057] In a tenth aspect, this application also provides a computer program product, which includes a computer program, and when the computer program is executed, the method described above is performed. Attached Figure Description

[0058] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0059] Figure 1 is a structural schematic diagram of the vehicle provided in an embodiment of this application;

[0060] Figure 2 is a partial structural schematic diagram of the headlight shown in Figure 1;

[0061] Figure 3 is an exploded view of the projection module shown in Figure 2;

[0062] Figure 4 is a schematic diagram of the structure of the base shown in Figure 3;

[0063] Figure 5 is a schematic diagram of the structure of the second reflector bracket shown in Figure 3;

[0064] Figure 6 is a structural schematic diagram of the light source, base and second reflector bracket assembly shown in Figure 3;

[0065] Figure 7 is an exploded view of one angle of the first rotating component shown in Figure 3;

[0066] Figure 8 is a structural schematic diagram of the first rotating component shown in Figure 7 from another angle;

[0067] Figure 9 is a schematic diagram of the assembly of the base and the first rotating component shown in Figure 3;

[0068] Figure 10 is an exploded view of the second rotating component shown in Figure 3;

[0069] Figure 11 is a schematic diagram of the assembly of the second rotating component and the first rotating component shown in Figure 3;

[0070] Figure 12 is a structural schematic of the projection module shown in Figure 2 from another angle;

[0071] Figure 13 is a flowchart of the projection method of the vehicle headlights shown in Figure 1;

[0072] Figure 14 is a schematic diagram of the distribution of multiple sub-regions within the first projection area. Detailed Implementation

[0073] The specific embodiments of this application will now be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in other ways different from those described herein, and therefore, this application is not limited to these embodiments.

[0074] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0075] Multiple: refers to two or more.

[0076] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0077] The specific embodiments of this application will now be clearly described in conjunction with the accompanying drawings.

[0078] This application provides a vehicle that can flexibly adjust the projection area of ​​its headlights, expanding the field of view and achieving a wider range of illumination and projection.

[0079] Please refer to Figure 1, which is a structural schematic diagram of the vehicle 1000 provided in an embodiment of this application. The vehicle 1000 in this embodiment can be a known vehicle such as a car, airplane, ship, or rocket, or it can be a newly emerging vehicle in the future. The car can be an electric vehicle, a gasoline-powered vehicle, or a hybrid vehicle, such as a pure electric vehicle, a range-extended electric vehicle, a hybrid electric vehicle, a fuel cell vehicle, or a new energy vehicle; this application does not specifically limit its type. The following description uses a vehicle 1000 as an example.

[0080] The vehicle 1000 includes a headlight 100 and a vehicle body 200. Please refer to Figure 2, which is a partial structural schematic diagram of the headlight 100 shown in Figure 1. The headlight 100 includes a projection module 10 and a controller 20. Both the projection module 10 and the controller 20 are mounted on the vehicle body 200. The controller 20 can be electrically connected to the projection module 10. The controller 20 is capable of controlling the direction of light propagation from the light source of the projection module 10.

[0081] The controller 20 can communicate with the computer system in the vehicle 1000 via the vehicle's bus to receive various information or control signals, and then send information to the projection module 10 to control the direction of light propagation of the projection module 10, thereby achieving the desired lighting effect. It should be noted that, with technological advancements, the functionality of the controller 20 may be integrated into the vehicle's computer system, allowing the computer system to directly control the projection module 10 to change the direction of light propagation. For example, the controller 20 could be integrated into the cockpit domain controller. This application does not limit the specific operating method of the controller 20.

[0082] It should be noted that, in addition to being a headlight module within a vehicle headlight, the projection module 10 can also be any device capable of illuminating or projecting images. The light projected by the projection module 10 can be monochromatic light, colored light, or image light capable of displaying patterns, etc. This application does not limit the type of light emitted by the projection module 10.

[0083] The vehicle light 100 can be an external or internal light fixture on a vehicle. For example, the vehicle light 100 may also include a lamp housing (not shown). The lamp housing may cover the projection module 10. The vehicle light 100 may also integrate sensing modules, such as any of the sensing modules including lidar, millimeter-wave radar, or infrared detection devices, to form an integrated sensing and illumination vehicle light 100.

[0084] In this embodiment, the lidar is combined with the intelligent driving system of the vehicle 1000. The lidar can monitor the surrounding environment in real time and provide the vehicle 1000 with timely obstacle avoidance and braking information, thereby improving driving safety.

[0085] Millimeter-wave radar measures the distance to a target by emitting electromagnetic waves and receiving the reflected echoes. Millimeter-wave radar can be used for blind spot monitoring, lane change assist at low speeds, emergency braking, adaptive cruise control, and other functions.

[0086] Infrared detection devices utilize electromagnetic radiation with longer wavelengths and lower frequencies for communication and detection. Infrared technology can be used to detect the airtightness of vehicle lights 100, ensuring the quality and performance of the lights by detecting gas leakage between the lamp cover and the bulb.

[0087] External lighting can include headlights or welcome lights. Headlights, also known as headlamps, are installed on both sides of the front of the vehicle for illuminating the road at night. Headlights include low beams and high beams. Low beams illuminate the road ahead without glare or causing discomfort to oncoming vehicles or other road users. High beams illuminate the road ahead further ahead. Welcome lights are mainly installed at the bottom of the doors or below the side mirrors. They automatically illuminate the area around the door when the door is opened or the driver approaches the vehicle, providing lighting for passengers getting in and out.

[0088] Interior lighting fixtures can include dome lights and ambient lights. Dome lights are used for illumination inside the vehicle at night or in dimly lit conditions. Ambient lights can be installed on the vehicle's interior and are non-illuminating lights used to create a specific ambiance. In some other applications, ambient lights can also be installed on the exterior of the vehicle.

[0089] The following description will use headlight 100 as an example. However, it should be noted that the headlight 100 in this application can be any type of headlight 100 used on the vehicle 1000, and is not limited to headlights.

[0090] In recent years, with the rapid development of electric vehicles, the importance and practical value of vehicle intelligence have gradually become prominent. At the same time, consumers have also developed more personalized demands for vehicle lights, such as welcome lights, "angel wings," and light carpets. However, traditional welcome lights are achieved through film printed with specific patterns, which has drawbacks such as limited pattern variety and a small projection area.

[0091] Pixelated headlights allow for individual control of the on / off state and brightness of each pixel area, providing a solid hardware foundation for intelligent vehicle lighting and generating significant buzz in the consumer market. Due to their distinct advantages in the diversity of welcome patterns and projection range, pixelated headlights have the potential to become the next generation of intelligent welcome projection lights.

[0092] However, existing pixelated headlights have a small field of view (less than 20 degrees horizontally and less than 10 degrees vertically), and the projection distance in front of the vehicle is usually greater than 8 meters, which greatly limits the welcoming range. In the light carpet scenario, it is also limited by the field of view and can generally only cover one lane in front, which can only be used for indicating width. Its lighting effect in more important scenarios such as lane changing and turning is very limited.

[0093] Based on this, this application provides a projection module 10, which can improve the field of view of the vehicle headlight 100 and meet the various large field of view lighting needs of the vehicle headlight 100. It can realize a variety of highly flexible new scenarios such as cornering lighting, turning light carpet, slope lighting, and large-scale welcoming.

[0094] Please refer to Figures 2 and 3. Figure 3 is an exploded view of the projection module 10 shown in Figure 2. The projection module 10 includes a base 11, a light source 12, and a reflective component 13. Both the light source 12 and the reflective component 13 are connected to the base 11. The light source 12 is used to emit light. The reflective component 13 is used to change the direction of light propagation, thereby expanding the field of view of the projection module 10.

[0095] It should be noted that Figure 2 is only intended to schematically illustrate the connection relationship between the base 11, the light source 12, and the reflective component 13, and is not intended to specifically limit the connection positions, specific structures, or quantities of the various devices. Furthermore, the structure illustrated in this embodiment does not constitute a specific limitation on the projection module 10. In other embodiments of this application, the projection module 10 may include more or fewer components than illustrated, or combine certain components, or split certain components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of both.

[0096] The light source 12 can be a pixel-type headlight, which is based on micromirror matrix technology or light-emitting diode matrix technology, and is composed of a large number of tiny light-emitting units (pixels). These pixels can be independently controlled for switching and brightness, thereby achieving precise control over the light distribution and illumination range. The light source 12 can also project more complex graphics such as text or traffic signs, as well as videos, and can be used in driver assistance and entertainment scenarios.

[0097] Specifically, the light source 12 can be a digital light processing projector (DLP), a liquid crystal on silicon (LCoS), a thin film transistor liquid crystal display (TFT-LCD), a micro light emitting diode (Micro-LED), a silicon-based OLED (Micro-OLED), etc.

[0098] Please refer to Figure 4, which is a structural schematic diagram of the base 11 shown in Figure 3. The base 11 includes a first mounting body 111 and a second mounting body 112, which are bent and connected together.

[0099] The first mounting body 111 is provided with a light source hole 1111. The light source hole 1111 penetrates the first mounting body 111 along its thickness direction. For example, the first mounting body 111 also provides a plurality of screw holes 1112. The plurality of screw holes 1112 are distributed around the periphery of the light source hole 1111. The screw holes penetrate the first mounting body 111 along its thickness direction.

[0100] The second mounting body 112 includes a mounting body 1121, a first motor limiting part 1122, and a first shaft 1123. The first motor limiting part 1122 and the shaft protrude from one surface of the mounting body 1121. The first motor limiting part 1122 is used to accommodate the first motor described below. The first shaft 1123 is used to connect with the first rotating member described below.

[0101] Specifically, the first motor limiting part 1122 is provided with a first motor cavity 1124, a first connecting groove 1125, and a first shaft groove 1126. The first motor cavity 1124 is recessed from the surface of the first motor limiting part 1122 away from the second mounting body 112. The first connecting groove 1125 penetrates the groove sidewall of the first motor cavity 1124. The first shaft groove 1126 penetrates the groove sidewall of the first motor cavity 1124 and is spaced apart from the first connecting groove 1125.

[0102] A first shaft 1123 protrudes from the surface of the mounting body 1121. The axial direction of the first shaft 1123 is perpendicular to the plane of the mounting body 1121. The central axis of the first shaft 1123 is a first axis 1123a. The first axis 1123a may be perpendicular to the plane of the mounting body 1121. The first shaft 1123 is spaced apart from the first motor limiting part 1122. For example, the first shaft 1123 is provided with a threaded hole 1123b. The threaded hole 1123b is recessed from the surface of the first shaft 1123 away from the mounting body 1121.

[0103] The mounting body 1121 of the second mounting body 112 is bent and connected to the first mounting body 111. One side of the first motor limiting part 1122 and the first shaft 1123 faces the first mounting body 111. For example, a plurality of reinforcing ribs 113 are provided at the bent connection between the second mounting body 112 and the first mounting body 111.

[0104] In this embodiment, since the bending connection between the two plate-like structures often bears large stress and deformation, the reinforcing rib 113 can effectively improve the load-bearing capacity of the area and prevent structural damage to the base 11 caused by stress concentration.

[0105] The light source 12 is mounted on the side of the first mounting body 111 away from the second mounting body 112, and the light-emitting end of the light source 12 passes through the light source hole 1111 of the first mounting body 111. The light source 12 can emit light towards the side of the first mounting body 111 facing the second mounting body 112.

[0106] In this embodiment, the first mounting body 111 of the base 11 provides a mounting position for the light source 12 and part of the reflective components 13. The second mounting body 112 of the base 11 can provide a mounting position for another part of the reflective components 13. The base 11 bends the first mounting body 111 and the second mounting body 112 to avoid laying the light source 12, reflective components 13 and other structural components flat, thereby improving the space utilization of the projection module 10.

[0107] The reflective assembly 13 includes a first reflector 131, a second reflector 132, a first rotating member 133, a second rotating member 134, and a second reflector support 135. The first reflector 131 is rotatably connected to the base 11 via the first rotating member 133 and the second rotating member 134. The first rotating member 133 and the second rotating member 134 are used to adjust the angle of the first reflector 131. The second reflector 132 is fixedly connected to the base 11 via the second reflector support 135.

[0108] The light emitted by the light source 12 can be reflected by the second reflector 132 and transmitted to the surface of the first reflector 131. By adjusting the angle of the first reflector 131, the direction of light propagation can be adjusted, thereby changing the illumination area (projection area) of the projection module 10.

[0109] Specifically, the first reflector 131 and the second reflector 132 can be plane mirrors. Alternatively, the first reflector 131 and the second reflector 132 can be concave mirrors, convex mirrors, or curved mirrors of other structures. The following description and illustrations use plane mirrors as examples of the first reflector 131 and the second reflector 132, but it should be understood that the first reflector 131 and the second reflector 132 are not limited thereto.

[0110] Please refer to Figure 5, which is a structural schematic diagram of the second reflector bracket 135 shown in Figure 3. The second reflector bracket 135 includes a base connecting portion 1351 and a reflector connecting portion 1352 connected to each other. The base connecting portion 1351 may be cylindrical.

[0111] The base connecting portion 1351 is provided with a light source receiving hole 1353 and a screw hole 1354. The light source receiving hole 1353 is located in the middle part of the cylindrical base connecting portion 1351. The screw hole 1354 is provided around the light source receiving hole 1353.

[0112] For example, the base connection portion 1351 is provided with a plurality of screw holes 1354. The reflector connection portion 1352 is connected to one side of the base connection portion 1351.

[0113] Please refer to Figures 4, 5, and 6. Figure 6 is a schematic diagram of the assembly of the light source 12, base 11, and second reflector bracket 135 shown in Figure 3. The base connecting portion 1351 is connected to the first mounting body 111 of the base 11. The base connecting portion 1351 is arranged around the light source hole 1111. The light source receiving hole 1353 communicates with the light source hole 1111. For example, the screw hole 1354 of the base connecting portion 1351 is opposite to the screw hole 1112 of the first mounting body 111. The projection module 10 may also be provided with screws. The screws can pass through the screw hole 1354 of the base connecting portion 1351 and the screw hole 1112 of the first mounting body 111, and are fixedly connected to the light source 12.

[0114] The reflector connector 1352 is connected to the base connector 1351 on the side opposite to the first mounting body 111. The reflector connector 1352 is spaced apart from the light source 12. The surface of the reflector connector 1352 facing the light source 12 is connected to the second reflector 132.

[0115] For example, the second reflector bracket 135 can be integrally formed with the base 11 to reduce the assembly process of the second reflector bracket 135 and the base 11 and reduce the positioning error of the assembly of the second reflector bracket 135 and the base 11.

[0116] In some possible implementations, the reflector connection portion 1352 of the second reflector bracket 135 can be connected to the base connection portion 1351 via a transmission member. The reflector connection portion 1352 can be adjusted relative to the base connection portion 1351 via the transmission member, thereby adjusting the angle of the second reflector 132 relative to the base 11.

[0117] In this embodiment, adjusting the angle of the second reflector 132 can change the propagation direction of the light from the light source 12. This, combined with the refraction of the light by the first reflector 131, allows the light to be adjusted to a wider range of illumination positions, thereby expanding the field of view of the projection module 10 and making the projection module 10 suitable for more application scenarios.

[0118] Please refer to Figures 7 and 8. Figure 7 is an exploded view of the first rotating member 133 shown in Figure 3 from one angle. Figure 8 is a structural schematic diagram of the first rotating member 133 shown in Figure 7 from another angle. The first rotating member 133 may include a rotating body 1331, a first support arm 1332, a second support arm 1333, a first gear part 1334, and a second motor limiting part 1335. For ease of description, the length direction of the rotating body 1331 is defined as the extension direction of the first rotating member 133. The middle section of the rotating body 1331 is provided with a first shaft hole 1331a. The first shaft hole 1331a penetrates the rotating body 1331 along the thickness direction of the rotating body 1331.

[0119] The first support arm 1332 and the second support arm 1333 are bent and connected to opposite ends of the rotating body 1331. A second shaft 1332a protrudes from the end of the first support arm 1332 away from the rotating body 1331. A third shaft 1333a protrudes from the end of the second support arm 1333 away from the rotating body 1331. In the extending direction of the first rotating member 133, the first support arm 1332 and the second support arm 1333 are arranged opposite each other. The second shaft 1332a and the third shaft 1333a are opposite each other and coaxially arranged. The central axis of the second shaft 1332a and the third shaft 1333a is the second axis 1332b.

[0120] The first gear part 1334 is connected to the rotating body 1331. Specifically, the first gear part 1334 can be connected to the middle section of the rotating body 1331, and the center of the first shaft hole 1331a of the rotating body 1331 is taken as the axis.

[0121] Please refer to Figures 7 and 9. Figure 9 is a schematic diagram of the assembly of the base 11 and the first rotating component 133 shown in Figure 3. The second motor limiting part 1335 is connected to the first support arm 1332. The second motor limiting part 1335 has a second motor cavity 1335a, a second connecting groove 1335b, and a second shaft groove 1335c. The second motor cavity 1335a is recessed from the surface of the second motor limiting part 1335 away from the first support arm 1332. The second connecting groove 1335b penetrates the side wall of the second motor cavity 1335a. The second shaft groove 1335c penetrates the side wall of the second motor cavity 1335a and is spaced apart from the second connecting groove 1335b.

[0122] Referring to Figures 4, 7, and 9, the middle section of the rotating body 1331 is fitted onto the first shaft 1123 of the second mounting body 112 of the base 11. The rotating body 1331 is rotatably connected to the second mounting body 112 via the first shaft 1123. For example, the first rotating component 133 further includes a bearing 1336, a washer 1337, and a screw 1338. The bearing 1336 is fitted onto the outer periphery of the first shaft 1123. The wall of the first shaft hole 1331a of the rotating body 1331 is connected to the outer periphery of the bearing 1336. The washer 1337 can be fitted onto the first shaft 1123 and is located on the side of the bearing 1336 and the rotating body 1331 facing away from the second mounting body 112. The screw 1338 is connected to the wall of the threaded hole 1123b of the first shaft 1123. The end of the screw 1338 facing away from the first shaft 1123 can press against the washer 1337.

[0123] In this embodiment, the first rotating member 133 is capable of rotating relative to the base 11 around the first axis 1123a. The bearing 1336 supports the rotating body 1331 of the first rotating member 133, reduces the coefficient of friction of the rotating body 1331 during rotation, and ensures its rotational accuracy. This helps the first rotating member 133 maintain a stable operating state and prevents the first rotating member 133 from being damaged due to excessive friction.

[0124] The gasket 1337 limits the bearing 1336 and the rotating body 1331 between the gasket 1337 and the second mounting body 112, preventing the bearing 1336 and the rotating body 1331 from falling off the first shaft 1123.

[0125] The first support arm 1332 and the second support arm 1333 extend away from the second mounting body 112. For example, the first support arm 1332 may be integrally formed with the rotating body 1331. The second support arm 1333 may be connected to the rotating body 1331 by screws.

[0126] In this embodiment, after the second rotating member 134 is connected to the first support arm 1332, the second support arm 1333 is connected to the rotating body 1331 by screws, and the second support arm 1333 is rotatably connected to the second rotating member 134, thereby clamping the second rotating member 134 between the first support arm 1332 and the second support arm 1333.

[0127] Alternatively, the first support arm 1332, the second support arm 1333, and the rotating body 1331 can be integrally formed. A second axis 1332b passing through the first support arm 1332 and the second support arm 1333 intersects the first axis 1123a. For example, the second axis 1332b can be perpendicular or approximately perpendicular to the first axis 1123a.

[0128] The second rotating member 134 is rotatably connected between the first support arm 1332 and the second support arm 1333. The second rotating member 134 is capable of rotating relative to the first rotating member 133 about the second axis 1332b.

[0129] In this embodiment, the space between the first support arm 1332 and the second support arm 1333 can be used to connect the second rotating member 134. The first support arm 1332 and the second support arm 1333 can provide a certain distance between the second rotating member 134 and the rotating body 1331 of the first rotating member 133, so as to avoid interference between the second rotating member 134 and the rotating body 1331 of the first rotating member 133 during rotation.

[0130] Please refer to Figure 10, which is an exploded view of the second rotating member 134 shown in Figure 3. The second rotating member 134 includes a mounting portion 1341, a first rotating portion 1342, a second rotating portion 1343, and a second gear portion 1344. The first rotating portion 1342 and the second rotating portion 1343 are respectively connected to opposite sides of the mounting portion 1341.

[0131] The first rotating part 1342 is provided with a second shaft hole 1345. The second shaft hole 1345 protrudes from the surface of the first rotating part 1342 away from the mounting part 1341.

[0132] The second rotating part 1343 is provided with a third shaft hole 1346. The third shaft hole 1346 protrudes from the surface of the second rotating part 1343 away from the mounting part 1341. The second shaft hole 1345 and the third shaft hole 1346 can be coaxially arranged.

[0133] Please refer to Figures 7, 10, and 11. Figure 11 is a schematic diagram of the assembly of the second rotating member 134 and the first rotating member 133 shown in Figure 3. The first rotating part 1342 is rotatably connected to the end of the first support arm 1332 away from the rotating body 1331. The second shaft hole 1345 of the first rotating part 1342 is sleeved on the second shaft body 1332a of the first support arm 1332. For example, the second rotating part 1343 also includes a bearing 1347. The bearing 1347 is sleeved on the outer periphery of the second shaft body 1332a of the first support arm 1332. The hole wall of the second shaft hole 1345 is connected to the outer periphery of the bearing 1347.

[0134] The second rotating part 1343 is rotatably connected to the end of the second support arm 1333 away from the rotating body 1331. The third shaft hole 1346 of the second rotating part 1343 is fitted into the third shaft body 1333a of the second support arm 1333. For example, the second rotating part 1343 also includes a bearing 1361. The bearing 1361 is fitted onto the outer periphery of the third shaft body 1333a of the second support arm 1333. The hole wall of the third shaft hole 1346 is connected to the outer periphery of the bearing.

[0135] In this embodiment, the first reflector 131 is mounted on the mounting portion 1341 in the middle of the second rotating member 134. When the two ends of the second rotating member 134 rotate, the first reflector 131 located between the second rotating portions 1343 can be rotated.

[0136] When the first rotating part 1342 of the second rotating member 134 is subjected to load or resistance, a reverse torque is generated, causing the rotation of the second rotating member 134 to become unstable. By using the second support arm 1333 to support the second rotating part 1343, the vibration and sway of the second rotating member 134 caused by uneven or sudden loads can be reduced, thus maintaining the rotational stability of the second rotating member 134.

[0137] The second gear part 1344 is connected to the outer periphery of the first rotating part 1342. The second gear part 1344 is centered on the central axis of the second shaft hole 1345.

[0138] Please refer to Figure 12, which is a structural schematic of the projection module 10 shown in Figure 2 from another angle. The first reflector 131 is connected to the mounting portion 1341 of the second rotating member 134. The first reflector 131 and the second reflector 132 are disposed opposite each other. The first axis 1123a, serving as the rotation center of the first rotating member 133, can pass through the first reflector 131. For example, the first reflector 131 can be rectangular, and the first axis 1123a can pass through the geometric center of the first reflector 131.

[0139] In this embodiment, the second reflector 132 can be fixed relative to the base 11, and light propagates towards the first reflector 131 after passing through the second reflector 132. Since the position of the first reflector 131 can move within a small range, or the center point of the first reflector 131 can be fixed relative to the second reflector 132, the first reflector 131 can always receive and reflect the light reflected by the second reflector 132 when changing its angle. When the projection module 10 needs to adjust the projection area, the first rotating member 133 can rotate relative to the base 11 around the first axis 1123a, causing the second rotating member 134 and the first reflector 131 to rotate around the first axis 1123a, thereby changing the direction of light propagation.

[0140] Currently, projection modules need to illuminate different areas in different usage scenarios to provide lighting services to users under various conditions. To adjust the illumination area of ​​the projection module, a transmission component is generally used to change the angle of the light source, thereby changing the path of the light and thus altering the illumination area of ​​the projection module.

[0141] Because of the large size of the light source, it requires a significant amount of space to move during rotation. However, the space available for installing projection modules in typical vehicles is limited. Therefore, the movement of the light source is restricted by the installation space, preventing large-angle adjustments and thus limiting the field of view of the projection module.

[0142] In this embodiment, the position of the light source 12 of the projection module 10 can be fixed relative to the base 11. When it is necessary to adjust the illumination area of ​​the projection module 10, the angle of the first reflector 131 can be adjusted to change the propagation path of the light from the light source 12, thereby changing the illumination area of ​​the projection module 10. The first reflector 131 can be any reflective plane mirror, etc. The volume of the first reflector 131 is much smaller than the volume of the light source 12. Therefore, the space required for the first reflector 131 to rotate is small, and the first reflector 131 can make a large angle change in a limited space, thereby changing the illumination area to a greater extent, so that the illumination area of ​​the projection module 10 can be varied within a large range.

[0143] The first reflector 131 can change its angle in the light path of the light source 12, thereby changing the propagation direction of the light passing through the first reflector 131. It can deflect the light closer to the vehicle body, so that the light passing through the first reflector 131 can reach the area closer to the vehicle body, thereby expanding the field of view of the projection module 10.

[0144] When the area around a vehicle can be illuminated, it can be used in vehicle welcome scenarios. As the driver approaches the vehicle, the vehicle can illuminate or project patterns into the path the driver is approaching, which not only helps the driver quickly find their vehicle in a dark environment, but also creates a warm atmosphere and optimizes the user experience.

[0145] While the vehicle is in motion, the light emitted by the light source 12, after passing through the first reflector 131, can also form a light carpet effect. This turning light carpet can predict the vehicle's path in real time. When the vehicle is about to change lanes or turn, the light carpet bends accordingly, clearly indicating the vehicle's driving intention. This not only helps the driver better understand the vehicle's dynamics but also allows surrounding pedestrians and vehicles to react in advance, avoiding collisions.

[0146] The projection module 10 can also adjust the distance and left and right in real time to move the light, or project auxiliary lane lights and other new scene requirements.

[0147] Since the first axis 1123a passes through the first reflector 131, the first reflector 131 has a small radius of rotation when it rotates around the first axis 1123a. Therefore, when the first rotating member 133 rotates around the first axis 1123a, the position of the first reflector 131 changes little. The first reflector 131 can remain within the path of light, preventing it from moving outside the path of light and losing its function of changing the light path.

[0148] The second rotating member 134 and the first rotating member 133 rotate in different directions, so that the angle of the first reflector 131 can change in different directions, thereby allowing the propagation direction of the light from the projection module 10 to change flexibly in different directions, thus expanding the field of view of the projection module 10.

[0149] The second rotating member 134 can rotate relative to the first rotating member 133 about the second axis 1332b, and can drive the first reflecting member 131 to rotate about the second axis 1332b, thereby changing the direction of light propagation. The second axis 1332b is located in the plane where the first reflecting member 131 is located. For example, the second axis 1332b can coincide with the axis of symmetry of the first reflecting member 131.

[0150] In this embodiment, when the first reflector 131 rotates around the second axis 1332b, the first reflector 131 can rotate on its own axis. Therefore, the required space for the first reflector 131 to rotate around the second axis 1332b is small. Thus, the rotation of the first reflector 131 around the second axis 1332b is not limited by the installation space. Therefore, the first reflector 131 can rotate around the second axis 1332b at a large angle, thereby changing the illumination area to a large extent, so that the illumination area of ​​the projection module 10 can vary within a large range.

[0151] In some other possible implementations, the connection between the first rotating member 133 and the second rotating member 134 of the projection module 10 can be adjusted. For example, the second rotating member 134 can be rotatably connected to the base 11. Specifically, the first rotating portion 1342 and the second rotating portion 1343 of the second rotating member 134 can be rotatably connected to the base 11.

[0152] The first rotating member 133 can be rotatably connected to the second rotating member 134. The rotating body 1331 of the first rotating member 133 can be rotatably connected to the middle position of the second rotating member 134. The first reflector 131 can be mounted on the first rotating member 133.

[0153] In this embodiment, the installation order of the first rotating member 133 and the second rotating member 134 can be flexibly adjusted. This application does not restrict the installation order of the first rotating member 133 and the second rotating member 134. The first rotating member 133 and the second rotating member 134 can be connected between the base 11 and the first reflector 131 to adjust the angle of the first reflector 131 relative to the base 11.

[0154] In one possible implementation, referring again to Figures 4, 9, and 11, the projection module 10 further includes a first motor 1371, a first worm gear 1372, a second motor 1373, and a second worm gear 1374. The first motor 1371 is connected to the first motor limiting portion 1122 of the second mounting body 112. The first motor 1371 may be located within the first motor cavity 1124 of the first motor limiting portion 1122. The first worm gear 1372 passes through the first shaft groove 1126 and is connected to the first motor 1371. The first motor 1371 can drive the first worm gear 1372 to rotate. The first motor 1371 can also be connected to an external power source via an electrical connection wire, which passes through the first connecting groove 1125 to connect the first motor 1371 to the external power source.

[0155] The end of the first worm gear 1372 facing away from the first motor 1371 meshes with the first gear portion 1334 of the first rotating member 133. The first motor 1371 can drive the first worm gear 1372 to rotate, thereby driving the first gear portion 1334 to rotate, and in turn driving the rotating body 1331 to rotate. The rotation of the rotating body 1331 of the first rotating member 133 can drive the second rotating member 134 and the first reflector 131 to rotate.

[0156] The second motor 1373 is connected to the second motor limiting part 1335 on the first support arm 1332. The second motor 1373 can be located within the second motor cavity 1335a of the second motor limiting part 1335. The second worm gear 1374 passes through the second shaft groove 1335c and is connected to the second motor 1373. The second motor 1373 can drive the second worm gear 1374 to rotate. The second motor 1373 can also be connected to an external power source via an electrical connection wire, which passes through the second connecting groove 1335b to connect the second motor 1373 to the external power source.

[0157] The end of the second worm gear 1374 that is away from the second motor 1373 meshes with the second gear portion 1344 of the second rotating member 134. The second motor 1373 can drive the second worm gear 1374 to rotate, thereby driving the second gear portion 1344 to rotate, and in turn driving the second rotating member 134 to rotate. The rotation of the second rotating member 134 can drive the second reflector 132 to rotate.

[0158] In this embodiment, the first motor 1371 and the second motor 1373 can automatically rotate the first rotating component 133 and the second rotating component 134. The high-precision control capability of the motors ensures that when the worm gear rotates, the first rotating component 133 and the second rotating component 134 move along a predetermined trajectory and speed, thereby making the rotation angle of the first reflector 131 more accurate, so as to make the positioning of the illumination area of ​​the projection module 10 more accurate and improve the user experience.

[0159] It should be noted that the method of using worm gear and gear transmission to drive the first rotating member 133 and the second rotating member 134 to rotate described above is only an exemplary illustration of the rotation of the first reflector 131. The first rotating member 133 and / or the second rotating member 134 can also be driven to rotate by connecting to a friction belt and by a motor driving the friction belt to rotate.

[0160] Friction belt drives typically have high transmission efficiency, effectively utilizing friction and exhibiting low energy loss during transmission. During torque transmission, the friction belt adheres closely to the first rotating component 133 or the second rotating component 134, efficiently transmitting power to them through friction.

[0161] Alternatively, the first rotating member 133 and / or the second rotating member 134 can also be driven to rotate by connecting to a chain and by a motor driving the chain to rotate.

[0162] Chain drives are generally highly reliable, do not slip, and can operate stably at low speeds. This characteristic allows chain drives to maintain high transmission efficiency and reliability.

[0163] Alternatively, the first rotating member 133 and / or the second rotating member 134 can be connected to a rack, and the rack can be driven by a motor to rotate the first rotating member 133 and / or the second rotating member 134. In the case where the transmission component is a rack, the first gear portion 1334 and / or the second gear portion 1344 can mesh with the rack.

[0164] Rack and pinion drives can maintain a constant transmission ratio, making power transmission stable and reliable, and providing precise control over output speed and torque.

[0165] In other possible implementations, the first rotating member 133 and / or the second rotating member 134 may also be implemented by designing other specific transmission mechanisms, including but not limited to linkages, rocker arms, crankshafts, cams, pneumatic mechanisms, etc.

[0166] During the use of the vehicle headlight 100, the controller 20 can determine the working state of the vehicle headlight 100, or the controller 20 can receive signals or instructions from the cockpit or other control domains, and drive the first reflector 131 to move based on the instructions of the working state, so that the vehicle headlight is in different working states.

[0167] The vehicle headlight includes a first operating state, a second operating state, and a third operating state. In the first operating state, the angle of the first reflector 131 can be adjusted via the first rotating component 133, while the second rotating component 134 remains stationary. At this time, after the headlight is installed on the vehicle, the extension direction of the first axis 1123a of the projection module 10 can be the height direction of the vehicle. The extension direction of the second axis 1332b can be the width direction of the vehicle. When the first rotating component 133 rotates around the first axis 1123a, it can drive the first reflector 131 to rotate, allowing the projection area of ​​the light to change in the left-right direction of the vehicle.

[0168] At this point, the projection area of ​​the headlights can be changed either all at once or in real time. When the vehicle is in motion, the projection area can change left and right to illuminate the left and right auxiliary lanes. Alternatively, during a turn, the lighting area can be adjusted in real time at different points along the curve to avoid blind spots and improve driving safety in darkness. Furthermore, during oncoming traffic, the lighting area can be flexibly adjusted left and right to prevent light from illuminating oncoming vehicles, thus avoiding blurred vision or glare that could severely affect their driving judgment and operation.

[0169] In the second operating state, the angle of the first reflector 131 can be adjusted by the second rotating member 134, while the first rotating member 133 remains stationary. At this time, the first reflector 131 can rotate around the second axis 1332b, so that the projection area of ​​the light can change according to the distance of the vehicle.

[0170] At this time, the projection area of ​​the headlights can be changed all at once or in real time. When the vehicle is in motion, the projection area changes depending on the distance from the vehicle, which allows the driver to easily switch between low beam and high beam and flexibly adjust the position of the high and low beams to adapt to road surfaces with inclines.

[0171] In its third operating state, the headlights can simultaneously adjust the angle of the first reflector 131 by rotating the first rotating member 133 and the second rotating member 134. At this time, the projection area of ​​the headlights can flexibly change left and right, near and far, relative to the vehicle. When the vehicle is parked, the headlights can provide a wide-range moving light source, creating effects such as a light carpet or near-field welcome. When the vehicle is moving, the projection area can adapt to various complex road surfaces, thus accurately illuminating the driving area.

[0172] This application also provides a projection method for a vehicle headlight 100. Please refer to Figure 13, which is a flowchart of the projection method for the vehicle headlight 100 shown in Figure 1. This method is applied to a vehicle 1000, which includes the projection module 10 as described above. The projection method includes:

[0173] S100: Based on the first scene mode of the vehicle 1000, control the first reflector 131 of the projection module 10 to rotate around the first axis 1123a and / or the second axis 1332b so that the light passing through the first reflector 131 is projected onto the first projection area, wherein the first axis 1123a passes through the first reflector 131 and the second axis 1332b intersects with the first axis 1123a.

[0174] Specifically, controller 20 can be used to execute step S100. Controller 20 can be the controller of projection module 10 or a controller of other domains. Controllers of other domains include terminal wireless control, remote key, vehicle cockpit domain controller, vehicle sensors, etc. Projection module 10 can also acquire information from such controllers 20 to determine the scene mode of vehicle 1000. Based on the scene mode of vehicle 1000, the controller 20 of projection module 10 or other domain controllers determines the projection area.

[0175] For example, the first scene mode can be any one of the following: high beam mode, low beam mode, near-field welcome mode, curve lighting mode, moving light signal mode, left and right auxiliary lane lighting mode, light carpet mode, etc.

[0176] In addition to S100, projection methods may also include:

[0177] S200: Based on the second scene mode of the vehicle 1000, the first reflector 131 of the projection module 10 is controlled to rotate around the first axis 1123a and / or the second axis 1332b so that the light passing through the first reflector 131 is projected onto the second projection area, which is different from the first projection area.

[0178] The second scene mode can be another of the following: high beam mode, low beam mode, near-field welcome mode, curve lighting mode, moving light signal mode, left and right auxiliary lane lighting mode, light carpet mode, etc. The second scene mode is different from the first scene mode.

[0179] Specifically, S100: Based on the first scene mode of the vehicle 1000, control the first reflector 131 of the projection module 10 to rotate around the first axis 1123a and / or the second axis 1332b, so that the light passing through the first reflector 131 is projected onto the first projection area, wherein the first axis 1123a passes through the first reflector 131, and the second axis 1332b intersects the first axis 1123a, including:

[0180] Step 1: Determine the first projection area based on the first scene mode of the vehicle 1000.

[0181] Step 2: Generate a projection command based on the first projection area. This projection command can be directly acquired by the controller 20 of the projection module 10, or it can be a command received by the projection module 10 from other domain controllers. The projection command instructs the projection module 10 to project the corresponding image within the projection area.

[0182] In some possible embodiments, the projection command includes projection area information, and the controller 20 of the projection module 10 generates specific parameters for controlling the first reflector 131 based on the projection area information. The specific parameters for controlling the first reflector 131 include the rotation angle of the first rotating member 133 and / or the second rotating member 134, and the rotation speed of the first rotating member 133 and / or the second rotating member 134, etc. For example, if the first reflector 131 needs to rotate 90 degrees around the first axis 1123a, the controller 20 of the projection module 10 will control the first rotating member 133 to drive the second rotating member 134 and the first reflector 131 to rotate 90 degrees.

[0183] Step 3: Based on the projection command, control the first reflector 131 of the projection module 10 to rotate around the first axis 1123a and / or the second axis 1332b, so that the light passing through the first reflector 131 is projected onto the projection area. The first axis 1123a passes through the first reflector 131, and the second axis 1332b intersects the first axis 1123a. It should be noted that the projection area can be any projection area of ​​the light from the light source 12 after reflection by the first reflector 131. The projection position can also be flexibly adjusted according to actual needs to meet the requirements of different welcoming scenarios.

[0184] It should be noted that this application does not limit the image information carried by the light. For example, in normal projection mode, the projection of the light from light source 12 is used for road lighting. As another example, in near-field projection mode, the projection of the light from light source 12 can achieve a welcoming effect similar to ambient lighting.

[0185] In one possible use case, the first projection area includes a first sub-region and a second sub-region.

[0186] Based on projection commands, the first reflector 131 of the projection module 10 is controlled to rotate around the first axis 1123a and / or the second axis 1332b, so that light passing through the first reflector 131 is projected onto the projection area, including:

[0187] Based on the projection command, the first rotating member 133 and / or the second rotating member 134 of the projection module 10 are controlled to drive the first reflector 131 to move by a first angle so that the light passing through the first reflector 131 is projected onto the first sub-region.

[0188] Based on the projection command, the first rotating member 133 and / or the second rotating member 134 of the projection module 10 are controlled to drive the first reflector 131 to move at a second angle so that the light passing through the first reflector 131 is projected onto the second sub-region; the first angle and the second angle are different, and the first sub-region and the second sub-region are different.

[0189] The above scenario can be understood as a projection transformation from one dynamic scene to another. A dynamic scene refers to a change in usage state, such as a user moving their activity point within a scene mode area.

[0190] For example, the scene mode is a near-field welcoming scene, which dynamically projects based on changes in the user's position.

[0191] Specifically, please refer to Figure 14, which is a schematic diagram of the distribution of multiple sub-regions within the first projection area A. The first projection area A corresponding to the near-field welcoming scene mode is divided into multiple sub-projection areas based on the user's position, such as the first sub-region A1 and the second sub-region A2. The user is located in the first sub-region A1 at the first moment. The user moves within the first projection area A corresponding to the near-field welcoming scene, moving from the first sub-region A1 to the second sub-region A2, and is located in the second sub-region A2 at the second moment. For example, the user is located in the first sub-region A1 at time t1 and in the second sub-region A2 at time t2. A dynamic projection instruction set is generated based on these two sub-projection areas. The dynamic projection instruction set includes the rotation direction, rotation angle, and projection area of ​​different regions. For example, the first sub-region A1 corresponds to parameter a (the first rotation direction and first rotation angle of the first rotating component 133, and / or the second rotation direction and second angle of the second rotating component 134, etc.), and the second sub-region A2 corresponds to parameter b (the third rotation direction and third rotation angle of the first rotating component 133, and / or the fourth rotation direction and fourth angle of the second rotating component 134, etc.).

[0192] In the same scene mode of a vehicle, different sub-projection areas can correspond to different projection parameters. The controller 20 can control the projection module 10 to project, so as to illuminate the corresponding projection area.

[0193] In one possible design, this application also provides a control system, including a controller 20 and the aforementioned projection module 10, wherein the controller 20 is capable of controlling the first rotating member 133 and the second rotating member 134 to drive the first reflector 131 to move.

[0194] In one possible design, this application also provides a projection device. The projection device in the embodiments of this application may be a device equipped with a processor / chip capable of executing computer execution instructions, or it may be a processor / chip capable of executing computer execution instructions. Optionally, the projection device may be an electronic device, or it may be a processor / chip within an electronic device. The projection device is used to execute the projection method in the embodiments of this application.

[0195] In one possible implementation, this application also provides a chip, which includes a processor and an interface. The number of processors can be one or more, and the number of interfaces can be multiple. It should be noted that the functions corresponding to the processor and the interface can be implemented through hardware design, software design, or a combination of both; no limitation is imposed here.

[0196] Optionally, the chip may also include a memory for storing necessary program instructions and data.

[0197] In this application, the processor can be used to call the implementation program of the projection method provided in one or more embodiments of this application on the projection device from memory, and execute the instructions included in the program. The interface can be used to output the processor's execution results. Specifically, in this application, the interface can be used to output various messages or information from the processor.

[0198] This application also provides a mobile terminal, which includes at least one projection device, or electronic device, or chip.

[0199] Optionally, the mobile terminal can be a means of transportation, such as a car, truck, aircraft, drone, slow transport vehicle, spacecraft, or ship, or any other possible means of transportation used in any possible scenario. This application embodiment does not limit this.

[0200] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer-readable storage medium in which a computer program is stored.

[0201] According to the method provided in the embodiments of this application, the embodiments of this application also provide a computer program product, which includes a computer program.

[0202] The above are exemplary embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A projection module, characterized in that, include: Base; A first rotating member is rotatably connected to the base, and the first rotating member is capable of rotating relative to the base about a first axis. The second rotating member is rotatably connected to the first rotating member, and the second rotating member is capable of rotating relative to the first rotating member about a second axis, the second axis intersecting the first axis; A light source, mounted on the base, is used to emit light; A first reflector is connected to the second rotating member, and the first reflector is used to reflect the light. The first rotating member rotates relative to the base around the first axis, which can drive the second rotating member and the first reflector to rotate around the first axis, thereby changing the propagation direction of the light. The first axis passes through the first reflector, and the second rotating member can rotate relative to the first rotating member around the second axis, thereby driving the first reflector to rotate around the second axis, thereby changing the propagation direction of the light.

2. The projection module according to claim 1, characterized in that, The second axis is located in the plane where the first reflector is located.

3. The projection module according to claim 1 or 2, characterized in that, The projection module further includes a second reflector located in the optical path between the light source and the first reflector. The second reflector is capable of receiving light emitted by the light source and reflecting the light back to the first reflector.

4. The projection module according to claim 3, characterized in that, The base includes a first mounting body and a second mounting body, the first mounting body and the second mounting body are bent and connected, the first mounting body is provided with a light source hole, and the light source hole penetrates the first mounting body along the thickness direction of the first mounting body; The light source passes through the light source hole of the first mounting body, and the light source can emit light towards the side of the first mounting body facing the second mounting body. The first rotating member is rotatably connected to the surface of the second mounting body facing the first mounting body.

5. The projection module according to claim 4, characterized in that, The first rotating component includes a rotating body, a first support arm, and a second support arm. The rotating body is rotatably connected to the second mounting body. The first support arm and the second support arm are bent and connected to opposite ends of the rotating body. The first support arm and the second support arm extend away from the second mounting body. The second rotating component is connected between the first support arm and the second support arm.

6. The projection module according to claim 5, characterized in that, The second rotating member includes a mounting portion, a first rotating portion, and a second rotating portion. The first rotating portion and the second rotating portion are respectively connected to opposite sides of the mounting portion. The first rotating portion is rotatably connected to the end of the first support arm away from the rotating body. The second rotating portion is rotatably connected to the end of the second support arm away from the rotating body. The mounting portion is connected to the first reflector.

7. The projection module according to claim 6, characterized in that, The projection module includes a first motor and a first worm gear. The first motor is connected to the second mounting body and the first worm gear is connected. The first motor can drive the first worm gear to rotate. The first rotating component further includes a first gear portion, which is connected to the rotating body and meshes with the first worm. The first motor can drive the first worm gear to rotate, thereby driving the first gear section to rotate, and in turn driving the rotating body to rotate.

8. The projection module according to claim 7, characterized in that, The projection module includes a second motor and a second worm gear. The second motor is connected to the first support arm and the second worm gear is connected to the second worm gear. The second motor can drive the second worm gear to rotate. The second rotating component further includes a second gear portion, which is connected to the first rotating component and meshes with the second worm. The second motor can drive the second worm gear to rotate, thereby driving the second gear part to rotate, and in turn driving the mounting part to rotate.

9. The projection module according to claim 4, characterized in that, The projection module also includes a second reflector bracket, which is connected to the surface of the first mounting body facing the second mounting body. The second reflector is fixed to the second reflector bracket and is opposite to the light source.

10. The projection module according to claim 9, characterized in that, The second reflector bracket includes a base connecting part and a reflector connecting part. The base connecting part is connected to the first mounting body. The base connecting part is provided with a light source receiving hole. The light source receiving hole communicates with the light source hole, and part of the light source is located in the light source receiving hole. The reflector connection portion is connected to the side of the base connection portion away from the first mounting body, and the reflector connection portion is connected to the second reflector.

11. A vehicle light, characterized in that, Includes a controller and a projection module as described in any one of claims 1-10, wherein the controller is capable of controlling the first rotating member and the second rotating member to drive the first reflector to move.

12. A control system, characterized in that, The system includes a controller and the projection module according to any one of claims 1-10, wherein the controller is capable of controlling the first rotating member and the second rotating member to drive the first reflector to move.

13. A means of transportation, characterized in that, The vehicle includes a vehicle body, a controller, and a projection module as described in any one of claims 1-10, wherein the controller and the projection module are both mounted on the vehicle body, and the controller is capable of controlling the first rotating member and the second rotating member to drive the first reflector to move.

14. A projection method applied to vehicles, characterized in that, The vehicle includes the projection module according to any one of claims 1-10, and the projection method includes: Based on the first scene mode of the vehicle, the first reflector of the projection module is controlled to rotate around a first axis and / or a second axis so that light passing through the first reflector is projected onto a first projection area, wherein the first axis passes through the first reflector and the second axis intersects with the first axis.

15. The projection method according to claim 14, characterized in that, The projection method further includes: Based on the second scene mode of the vehicle, the first reflector of the projection module is controlled to rotate around the first axis and / or the second axis so that the light passing through the first reflector is projected onto the second projection area, which is different from the first projection area.

16. The projection method according to claim 14, characterized in that, The first scene mode based on the vehicle, controlling the first reflector of the projection module to rotate around the first axis and / or the second axis includes: Based on the first scene mode of the vehicle, a first projection area is determined; Based on the first projection area, a projection instruction is generated; Based on the projection command, the first reflector of the projection module is controlled to rotate around the first axis and / or the second axis.

17. The projection method according to claim 14, characterized in that, The first projection area includes a first sub-region and a second sub-region; Based on the projection command, controlling the first reflector of the projection module to rotate around a first axis and / or a second axis, so that light passing through the first reflector is projected onto the first projection area, including: Based on the projection command, the first rotating component and / or the second rotating component of the projection module are controlled to move the first reflector by a first angle, so that the light passing through the first reflector is projected onto the first sub-region; Based on the projection command, the first rotating component and / or the second rotating component of the projection module are controlled to move the first reflector by a second angle, so that the light passing through the first reflector is projected onto the second sub-region; the first angle and the second angle are different, and the first sub-region and the second sub-region are different.

18. A projection device, characterized in that, Includes a processor for performing the method as described in any one of claims 14-17.

19. A chip, characterized in that, It includes logic circuits and interfaces, wherein the logic circuits and the interfaces are coupled; The interface is used for inputting and / or outputting information, and the logic circuit is used to perform the method as described in any one of claims 14-17.

20. A mobile terminal, characterized in that, This includes the projection device as described in claim 18, or the chip as described in claim 19.

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