Lens assembly, projection device, vehicle lamp and terminal

Abstract

This application provides a lens assembly, a projection device, a vehicle lamp, and a terminal. The lens assembly includes a base, a swing member, a rotating member, and a lens. The swing member is rotatably connected to the base. The rotating member is rotatably connected to the swing member. The lens is connected to the rotating member. When the lens assembly is in a non-operating state, the swing member is located outside the light transmission path of the base. When the lens assembly is in an operating state, the swing member can swing relative to the base, causing the lens to face the light transmission hole of the base. The swing member can change the position of the lens relative to the base, switching the position of the lens so that it moves into the light transmission path of the base. The rotating member can rotate the illuminated area around the light source; for example, the projection area can change from the left side to the right side of the light source. Embodiments of this application can expand the illuminated area of ​​the light source, thereby giving vehicle lamps or projection devices using lens assemblies a larger field of view to adapt to more usage scenarios.

Description

Technical Field

[0001] This application relates to the field of optical display, specifically to a lens assembly, projection device, vehicle lamp, and terminal. 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, vehicle lights generally switch directly between low beam and high beam while driving. In personalized usage scenarios such as welcome lights and light carpets, the illuminated area differs from the preset high beam or low beam area. However, current vehicle lights suffer from a small field of view and cannot flexibly adjust the light projection range, thus limiting the usage scenarios of the lights. Utility Model Content

[0003] Embodiments of this application provide a lens assembly, a projection device, a vehicle lamp, and a terminal. The lens assembly can expand the illuminated area of ​​the light source, thereby enabling the vehicle lamp or projection device using the lens assembly to have a larger field of view to adapt to more usage scenarios.

[0004] In a first aspect, this application provides a lens assembly, including a base, a swinging member, a rotating member, and a lens. The base has a light-transmitting hole that penetrates the base along a first direction, which is the thickness direction of the base. The base has a light-transmitting path that passes through the light-transmitting hole. The swinging member is rotatably connected to the base and has a lens mounting hole that penetrates the swinging member. The rotating member is rotatably connected to the swinging member. The lens is connected to the rotating member and covers the lens mounting hole; the lens can be driven by the rotating member to rotate relative to the swinging member. The lens assembly includes a non-working state and a working state. When the lens assembly is in the non-working state, the swinging member is located outside the light-transmitting path of the light-transmitting hole. When the lens assembly is in the working state, the swinging member can swing relative to the base, causing the lens to face the light-transmitting hole.

[0005] In this embodiment, the swinging component can change the position of the lens relative to the base, switching the lens's position so that the lens, which was originally outside the light transmission path of the base, moves into the light transmission path of the base. Changing the propagation direction of light passing through the lens can deflect the light closer to the light source, allowing the light passing through the lens to reach an area closer to the light source. The rotating component can rotate the illuminated area around the periphery of the light source; for example, the projection area can change from the left to the right side of the light source. This expands the field of view of the light source using the lens assembly, making the light source applicable to more usage scenarios.

[0006] In practical applications, when the lens assembly is used on a vehicle, it can be used in vehicle welcome scenarios when the area around the vehicle can be illuminated. As the driver approaches the vehicle, the vehicle can illuminate or project a pattern along the driver's path, not only making it easier for the driver to quickly find their vehicle in a dark environment, but also creating a warm atmosphere and optimizing the user experience.

[0007] When a vehicle is in motion, the light emitted from the headlights can create a light carpet effect after passing through a deflecting mirror. This 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 pedestrians and other vehicles to react in advance, preventing collisions.

[0008] In one possible implementation, the rotating member is annular, with the lens surrounding its inner circumferential surface. The rotating member has an annular groove recessed from its outer circumferential surface. The swing member is engaged within the annular groove and can slide within it.

[0009] In this embodiment, the change in the direction of light refraction is directly related to the rotation angle of the lens. The lens and the rotating component rotate at the same angle; by controlling the rotation angle of the rotating component, the positional change of the illumination area of ​​the light passing through the lens can be precisely and predictably controlled. This is crucial for applications requiring precise positioning of the illumination area (such as projection, aiming, and specific area illumination).

[0010] Furthermore, mounting the lens directly in the center of the rotating component allows for a compact structure. The central area of ​​the lens can coincide with the central area of ​​the rotating component, simplifying the optical path design and reducing the space occupied by the rotating component's movement.

[0011] When the rotating component rotates, it drives the lens to rotate, which can continuously and dynamically change the angle of the normal direction of the lens's exit surface and / or incident surface relative to the light source. This efficiently changes the convergence point or deflection direction of the light, enabling rapid, large-area scanning or precise positioning of the illumination area.

[0012] In one possible implementation, the swing member includes a body and a fixing part. The body has a lens mounting hole, a portion of the fixing part is located in the annular groove and can slide in the annular groove, and another portion of the fixing part protrudes relative to the annular groove and is fixedly connected to the body.

[0013] In this embodiment, the fixing part can decouple the direct fit between the rotating part and the swinging part. As an adapter structure between the body and the swinging part, the fixing part can reduce the requirements for the machining accuracy of the body and the rotating part. The fit tolerance between the fixing part and the body and the swinging part can be controlled and optimized independently. By adjusting the structure of the fixing part separately, the reliability of the connection between the body and the swinging body can be improved, and the machining difficulty and cost of the body and the swinging body itself can be significantly reduced.

[0014] During assembly, the fixing part can be first inserted into the annular groove of the rotating part, and then the fixing part can be fixed to the swinging part, making the installation process relatively simple. When the lens assembly requires maintenance, disassembly is simpler; just loosen the fixing point of the fixing part on the swinging part, and the rotating part can be easily removed. Replacing worn fixing parts is also simpler and faster, greatly improving the maintainability of the lens assembly.

[0015] In one possible implementation, the lens module further includes a second driven part and a second identification part. The second driven part is rotatably connected to the main body and contacts the outer peripheral surface of the rotating part. Rotation of the rotating part can drive the second driven part to rotate. The second identification part is connected to the main body and can detect the rotation angle of the second driven part.

[0016] In this embodiment, precise control of the illuminated area can be achieved by identifying the rotation angle of the lens. By monitoring the lens angle in real time, errors in the transmission of rotating components can be compensated in a timely manner, ensuring that the direction of light refraction accurately matches the preset value, thereby improving the positioning accuracy of the illuminated area. This is applicable to scenarios such as tracking moving targets or switching lighting.

[0017] In one possible implementation, the lens assembly further includes a fixing part, which is annular in shape. The outer peripheral surface of the fixing part is fixedly connected to the inner peripheral surface of the rotating member, and the inner peripheral surface of the fixing part is fixedly connected to the lens.

[0018] In this embodiment, the structural strength of the lens is generally slightly lower than that of the metal structural component. If the lens is directly mounted on the rotating component, local stress concentration is likely to occur at the contact surface between the lens and the rotating component, leading to lens cracking or deformation. By using a fixing part to buffer between the lens and the rotating component, and by connecting the fixing part to the peripheral surface of the lens, the load distribution around the lens can be made more uniform, reducing the risk of lens breakage.

[0019] In one possible implementation, the lens includes a first lens layer and a second lens layer, which are stacked together, and the peripheral surfaces of the first lens layer and the second lens layer are connected to the inner peripheral surface of the connector.

[0020] In this embodiment, stacking two lens layers increases the number of material layers in the lens, thereby increasing the number of reflections and refractions of light inside the lens and enhancing the refraction effect.

[0021] In one possible implementation, the lens assembly further includes a cover with a clearance groove, the cover being connected to the base and the clearance groove exposing the lens, and the cover covering the connector.

[0022] In this embodiment, the cover can cover the connector to prevent the connector from falling off the rotating part.

[0023] In one possible implementation, the lens assembly further includes a first motor and a first drive wheel. The first motor is connected to the rotating member and the first drive wheel. The outer peripheral surface of the rotating member is provided with a first gear tooth, which meshes with the first drive wheel. The first motor drives the first drive wheel to rotate, thereby causing the first gear tooth to rotate.

[0024] In this embodiment, the power of the first motor can drive the rotating component to rotate relative to the oscillating component through transmission, thereby causing the lens to rotate relative to the body of the oscillating component, so as to change the illuminated area of ​​the light passing through the lens.

[0025] In addition, the high-precision control capability of the motor ensures that the first drive wheel moves at a predetermined speed when it rotates, thereby making the rotation angle of the rotating part relative to the body of the oscillating body more precise, so as to make the positioning of the illuminated area of ​​the light transmitted through the lens more accurate and improve the user experience.

[0026] In one possible implementation, the lens module further includes a bearing connected between the wall of the lens mounting hole and the outer peripheral surface of the rotating component.

[0027] In this embodiment, the bearing can reduce the friction between the hole wall of the lens mounting hole and the outer peripheral surface of the rotating component, support the rotating component, and ensure that the rotating component can rotate smoothly and efficiently.

[0028] In one possible implementation, the body includes a mounting part and a swing arm. The mounting part is provided with a lens mounting hole. The swing arm includes a first end and a second end. The first end is fixedly connected to the mounting part, and the second end of the swing arm is rotatably connected to the base. The swing arm can swing around a second direction, which is different from the first direction.

[0029] In one possible implementation, the lens assembly further includes a second driven part and a second identification part. The second driven part is rotatably connected to the base, and the second identification part is disposed opposite to the second driven part in a second direction. The second identification part is capable of identifying the rotation angle of the second driven part.

[0030] The swing arm also includes a transmission part, which is connected to the outer periphery of the second end. The transmission part is in contact with the second driven member, and the swing arm can drive the second driven member to rotate through the transmission part.

[0031] In this embodiment, the swing angle of the swing member can be identified by the second driven part and the second recognition part, thereby determining the position of the incident surface of the lens on the swing part, and further determining the incident angle of light on the incident surface. The incident angle of light on the lens directly affects the refraction path of light within the lens, and thus affects the illumination area of ​​the light transmitted through the lens. By identifying the angle of the lens, the illuminated area can be better controlled, so that the light source using the lens assembly can accurately illuminate the preset area.

[0032] In one possible implementation, the lens assembly further includes a magnetic element connected to a second driven part. The rotation of the second driven part causes the magnetic element to rotate, and the second recognition part can recognize the rotation angle of the magnetic element.

[0033] In one possible implementation, the lens assembly further includes a second motor and a second drive wheel. The second motor is connected to the base, and its drive shaft is connected to the second drive wheel. The transmission part is a second gear, which is connected to the outer peripheral surface of the second end. The second gear meshes with the second drive wheel, and the second motor can drive the second gear to rotate via the second drive wheel.

[0034] Secondly, this application also provides a projection device, including a lamp source and the above-mentioned lens assembly. The lamp source is connected to a base and is capable of emitting light through a light-transmitting aperture. The projection device includes a first operating state and a second operating state. In the first operating state, the oscillating member is located outside the light path of the lamp source. In the second operating state, the lens is located within the light path of the lamp source.

[0035] Thirdly, this application also provides a vehicle lamp, including a lamp housing and the lens assembly as described above, the lens assembly being installed inside the lamp housing.

[0036] Fourthly, this application also provides a terminal, including a main body structure and a projection device as described above, the projection device being connected to the main body structure. Attached Figure Description

[0037] 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.

[0038] Figure 1 This is a schematic diagram of the vehicle structure provided in the embodiments of this application;

[0039] Figure 2 for Figure 1 The diagram shows the structure of the lens assembly.

[0040] Figure 3 yes Figure 1 The diagram shows a vehicle with a lens assembly that alters the light path of the lamp source to illuminate different areas.

[0041] Figure 4 yes Figure 2 An exploded view of the lens assembly shown.

[0042] Figure 5 yes Figure 4 The diagram shows the structure of the base.

[0043] Figure 6 yes Figure 4 The diagram shows the structure of the swing component.

[0044] Figure 7 yes Figure 6 An exploded view of the swing component shown;

[0045] Figure 8 yes Figure 2 A schematic diagram of the lens assembly from another angle is shown;

[0046] Figure 9 yes Figure 8 An exploded view of the lens assembly shown.

[0047] Figure 10 for Figure 4 The diagram shows the structure of the rotating component.

[0048] Figure 11 yes Figure 10 The diagram shows a rotating component fitted with a bearing and a fixed part.

[0049] Figure 12 yes Figure 11 The diagram shows the structure of the lens.

[0050] Figure 13 yes Figure 4 The diagram shows the structure of the oscillating component and the parts mounted on it.

[0051] Figure 14 yes Figure 13 A partially exploded view of the lens assembly shown;

[0052] Figure 15 yes Figure 1 The diagram shown illustrates the structure of the vehicle headlights in their first operating state.

[0053] Figure 16 yes Figure 1 The diagram shows a structural schematic of the vehicle headlights in their second operating state.

[0054] Figure 17 yes Figure 1The diagram shows another structural schematic of the vehicle headlights in their second operating state. Detailed Implementation

[0055] 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.

[0056] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0057] Multiple: refers to two or more.

[0058] 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.

[0059] The specific embodiments of this application will now be clearly described in conjunction with the accompanying drawings.

[0060] This application provides a terminal. The terminal includes a main body structure and a projection device connected to the main body structure. The terminal can be a vehicle, drone, robot, or other intelligent terminal or means of transportation. It should be understood that "vehicle" here is a broad concept, including means of transportation (such as commercial vehicles, passenger cars, motorcycles, flying cars, trains, etc.), industrial vehicles (such as forklifts, trailers, tractors, etc.), engineering vehicles (such as excavators, bulldozers, cranes, etc.), agricultural equipment (such as lawnmowers, harvesters, etc.). Similarly, a robot can be an automated guided vehicle (AGV), a walking conversational robot, a service robot, etc. This application does not limit the specific type of terminal.

[0061] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the vehicle 100 provided in this application embodiment. For ease of description, the vehicle 100 is used as an example for illustration below. The main structure of the vehicle 100 can be the vehicle body 10. The projection device can project images, videos, or text information onto the interior or exterior of the vehicle 100, thereby providing the driver with head-up display information, reducing the frequency of the driver looking down at the instrument panel, and improving driving safety. Alternatively, the projection device can project movies, game screens, etc., onto passengers, and, in conjunction with the audio system, create a mobile cinema or game space, enhancing the passenger's entertainment experience. Furthermore, the projection device can also project dynamic light and shadow effects onto the ground or vehicle surface, such as welcome light carpets, turn signals, etc., enhancing the technological feel and recognizability of the vehicle 100.

[0062] This application does not impose specific limitations on the use of the projection device. The following description uses a vehicle headlight 20 as an example of the projection device.

[0063] The vehicle lights 20 can be external or internal lights on the vehicle 100. External lights can be headlights or welcome lights, etc. Headlights, also known as headlamps, are installed on both sides of the front of the vehicle 100 for illuminating the road at night. Headlights include low beams and high beams. Low beams illuminate the road ahead of the vehicle 100 at close range without causing glare or discomfort to oncoming vehicles or other road users. High beams illuminate the road ahead of the vehicle 100 at a distance. Welcome lights are mainly installed at the bottom of the doors or below the exterior rearview mirrors. They automatically illuminate when the door is opened or the driver approaches the vehicle 100, providing lighting for passengers getting on and off the vehicle.

[0064] Interior lighting fixtures can include dome lights and ambient lights. Dome lights are used for interior illumination at night or in dimly lit conditions. Ambient lights can be installed on the interior of vehicle 100 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 vehicle 100.

[0065] The following description will use headlight 20 as an example. However, it should be noted that the headlight 20 in this application can be any type of headlight 20 used on the vehicle 100, and is not limited to headlights.

[0066] 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, vehicle lights generally switch directly between low beam and high beam while driving. In personalized usage scenarios such as welcome lights and light carpets, the illuminated area differs from the preset high beam or low beam area. However, current vehicle lights suffer from a small field of view and cannot flexibly adjust the light projection range, thus limiting the usage scenarios of the lights.

[0067] Based on this, the vehicle headlight 20 provided in the embodiments of this application can expand the illuminated area, thereby giving the vehicle headlight 20 a larger field of view to adapt to more usage scenarios. Specifically, as follows.

[0068] Please see Figure 2 , Figure 2 for Figure 1 The diagram shows the structure of the lens assembly 21. The vehicle headlight 20 may include a lamp housing (not shown), a light source (not shown), and the lens assembly 21. The lamp housing may have a receiving space, and the light source and lens assembly 21 may be located inside the lamp housing. The light source is capable of emitting light. The lens assembly 21 may be located in the path of light propagation to refract the light and change its direction of propagation.

[0069] The light source can be installed on the vehicle body 10. The vehicle body 10 is a basic structural component of the vehicle 100. The vehicle body 10 may include sheet metal, doors, windows, bumpers, headlight housings, taillight housings, front fenders, interior trim panels, and other vehicle accessories. The light source provided in this embodiment can be installed on any part of the vehicle body 10.

[0070] In some applications, light emitted from a lamp source can pass through the lens assembly 21, causing the light to be deflected. The principle behind this deflection can be based on reflection, refraction, or diffraction. The following explanation uses the refraction of light by the lens assembly 21 as an example.

[0071] In this embodiment, please refer to Figure 3 , Figure 3 yes Figure 1 The diagram shows a schematic of the structure of the lens assembly 21 of the vehicle 100, which alters the optical path of the lamp source to illuminate different areas. The lens assembly 21 can change its position in the optical path of the lamp source, thereby changing the propagation direction of the light passing through the lens assembly 21. It can deflect the light towards a direction closer to the vehicle body 10, allowing the light passing through the lens assembly 21 to reach areas closer to or farther from the vehicle body 10, thus expanding the field of view of the headlight 20.

[0072] When the area near the vehicle can be illuminated, it can be used in a vehicle 100 welcoming scene. When the driver approaches the vehicle 100, the vehicle 100 can illuminate or project a pattern in the path the driver is approaching. This not only makes it easier for the driver to quickly find their vehicle 100 in a dark environment, but also creates a warm atmosphere and optimizes the user experience.

[0073] While the vehicle is in motion, the light emitted from the lamp source can form a light carpet effect after passing through the lens assembly 21. The turning light carpet can predict the driving path of the vehicle 100 in real time. When the vehicle 100 is about to change lanes or turn, the light carpet will bend accordingly, thus clearly indicating the driving intention of the vehicle 100. This not only helps the driver better grasp the dynamics of the vehicle 100, but also allows pedestrians and other vehicles 100 to react in advance, avoiding collisions.

[0074] For example, the light source can be a pixel-type headlight, which is based on micromirror matrix technology or LED matrix technology and is composed of a large number of tiny light-emitting units (pixels). These pixels can be independently controlled for switching on and off and brightness, thereby achieving precise control over the light distribution and illumination range. The light source can also project text, traffic signs, or other complex graphics, as well as videos, for use in driver assistance and entertainment scenarios.

[0075] Specifically, the light source can be any of the following image sources: Digital Light Processing (DLP), Liquid Crystal on Silicon (LCoS), or Thin Film Transistor-Liquid Crystal Display (TFT-LCD). Alternatively, the light source can include one or more of the following light source components: Micro Light Emitting Diode (Micro-LED) or Micro-OLED.

[0076] Please see Figure 4 , Figure 4 yes Figure 2 The diagram shows an exploded view of the lens assembly 21. The lens assembly 21 includes a base 211, a swing member 212, a rotating member 213, and a lens 214. The base 211 provides a mounting position for the lamp source. The swing member 212 is connected to the base 211 and can swing relative to the base 211. The rotating member 213 is connected to the swing member 212 and can rotate relative to the swing member 212. The lens 214 is mounted on the rotating member 213 and can move relative to the base 211 under the influence of the rotating member 213 and the swing member 212.

[0077] Please see Figure 5 , Figure 5 yes Figure 4 The diagram shows the structure of the base 211. The base 211 includes a base body 2111, a first rotating shaft 2112, a second motor limiting part 2113, and a second sensor limiting part 2114. The first rotating shaft 2112, the second motor limiting part 2113, and the second sensor limiting part 2114 are all connected to the outer peripheral surface of the base body 2111. It should be noted that in the diagram, the Y direction is the forward direction of the vehicle 100; for ease of description, the Y direction is also defined as the first direction. The X direction is the width direction of the vehicle 100; for ease of description, the X direction is defined as the second direction. The Z direction is the height direction of the vehicle 100.

[0078] Specifically, the base body 2111 has a light-transmitting hole 2111a. The light-transmitting hole 2111a extends through the base body 2111 along the Y direction. The Y direction is defined as the thickness direction of the base 2111. The interior of the light-transmitting hole 2111a is used to accommodate a lamp source. The light-transmitting hole 2111a allows light from the lamp source to pass through.

[0079] A first rotating shaft 2112 is mounted on the outer peripheral surface of the base body 2111. Exemplarily, the first rotating shaft 2112 may include a first sub-shaft 2112a and a second sub-shaft 2112b. The first sub-shaft 2112a is connected to the surface of the base body 2111 facing the X direction. The second sub-shaft 2112b is connected to the surface of the base body 2111 facing the opposite direction to the X direction. The first sub-shaft 2112a and the second sub-shaft 2112b are coaxial and opposite to each other.

[0080] The second motor limiting part 2113 can be located on the surface of the base body 2111 facing the X direction. The second motor limiting part 2113 is spaced apart from the first sub-shaft 2112a. Alternatively, the second motor limiting part 2113 can be located on the surface of the base body 2111 in the opposite direction to the X direction. The second motor limiting part 2113 is spaced apart from the second sub-shaft 2112b.

[0081] For example, please continue reading Figure 5 The second motor limiting part 2113 includes a motor connector 2113a and a shaft connector 2113b. The motor connector 2113a has a limiting groove 2113c, which can penetrate the motor connector 2113a along the Z direction. The shaft connector 2113b is located on the side of the motor connector 2113a facing the opposite direction to the Z direction. The shaft connector 2113b and the motor connector 2113a are spaced apart. The surface of the shaft connector 2113b facing the Z direction has a recessed shaft connecting groove 2113d.

[0082] The second sensing limiting portion 2114 can be located on the surface of the base body 2111 facing the X direction. The second sensing limiting portion 2114 is spaced apart from the first sub-shaft 2112a. Alternatively, the second sensing limiting portion 2114 can be located on the opposite surface of the base body 2111 facing the X direction. The second sensing limiting portion 2114 is spaced apart from the first sub-shaft 2112a. For example, the second sensing limiting portion 2114 and the second motor limiting portion 2113 can be located on the same side of the base 2111, and the second sensing limiting portion 2114 and the second motor limiting portion 2113 are spaced apart.

[0083] Specifically, the second sensing limiting part 2114 includes a positioning post 2114a and a connecting post 2114b. The positioning post 2114a can be located on the side of the first rotating shaft 2112 facing the Z direction. The connecting post 2114b is spaced apart from the positioning post 2114a. For example, there can be multiple connecting posts 2114b, and this application does not limit the number of connecting posts 2114b.

[0084] Please refer to the following: Figure 6 and Figure 7 , Figure 6 yes Figure 4 The diagram shows the structure of the swing element 212. Figure 7 yes Figure 6 The diagram shows an exploded view of the swing member 212. The swing member 212 includes a body 2121 and a fixing part 2122. The body 2121 is used to connect to the base 211. The fixing part 2122 is used to fix the rotating member 213 to the body 2121.

[0085] Specifically, the body 2121 includes a mounting portion 2121a and a swing arm 2121b. The mounting portion 2121a includes a first surface 2121c and a second surface 2121d disposed opposite to each other along the thickness direction. The mounting portion 2121a is provided with a lens mounting hole 2121e. The lens mounting hole 2121e extends through the first surface 2121c and the second surface 2121d along the thickness direction (Y direction) of the mounting portion 2121a.

[0086] The second surface 2121d is provided with a first motor limiting part 2123 and a first sensing limiting part 2124. The first motor limiting part 2123 is used to fix the motor that drives the rotating member 213 to rotate. The first sensing limiting part 2124 is used to fix the sensing device that identifies the rotation angle of the rotating member 213. See the description below for details.

[0087] The first motor limiting part 2123 is connected to the second surface 2121d. The first motor limiting part 2123 can be located on the side opposite to the Z direction of the lens mounting hole 2121e.

[0088] For example, the first motor limiting part 2123 includes a motor connecting body 2123a and a rotating shaft connecting body 2123b. The motor connecting body 2123a is provided with a limiting groove 2123c, which can penetrate the motor connecting body 2123a in the X direction. The rotating shaft connecting body 2123b is located on the side of the motor connecting body 2123a facing the opposite direction to the X direction. The rotating shaft connecting body 2123b is spaced apart from the motor connecting body 2123a. The surface of the rotating shaft connecting body 2123b facing the X direction is recessed with a shaft connecting groove 2123d.

[0089] The first sensing limiting part 2124 is connected to the second surface 2121d. For example, the first sensing limiting part 2124 and the first motor limiting part 2123 may both be located on the same side of the lens mounting hole 2121e.

[0090] Specifically, the first sensing limiting part 2124 includes a positioning post 2124a and a connecting post 2124b. The connecting post 2124b is spaced apart from the positioning post 2124a. For example, there may be multiple connecting posts 2124b, and this application does not limit the number of connecting posts 2124b.

[0091] The swing arm 2121b includes a first end 2125 and a second end 2126. The first end 2125 is fixedly connected to the mounting part 2121a. The second end 2126 of the swing arm 2121b is rotatably connected to the base 211.

[0092] The second end 2126 of the swing arm 2121b is provided with a shaft hole 2126b. The shaft hole 2126b extends through the second end 2126 in the X direction. The swing arm 2121b is capable of reciprocating about the X direction as the central axis. For example, there can be two swing arms 2121b. The two swing arms 2121b are respectively connected to the first surface 2121c of the mounting part 2121a and are arranged opposite to each other in the X direction. One swing arm 2121b can be integrally formed with the mounting part 2121a, and the other swing arm 2121b can be detachably connected to the mounting part 2121a.

[0093] The body 2121 of the swing member 212 is connected to the base 211. The mounting portion 2121a of the body 2121 can be located on the side of the base 211 facing the Y direction. The swing arm 2121b of the body 2121 is rotatably connected to the base 211. The shaft hole 2126b of one swing arm 2121b is sleeved on the first sub-shaft 2112a, and the shaft hole 2126b of the other swing arm 2121b is sleeved on the second sub-shaft 2112b. For example, a bearing can be provided between the hole wall of the shaft hole 2126b and the first shaft. The bearing can reduce the friction when the swing arm 2121b swings relative to the base 211, so that the swing arm 2121b can move more smoothly.

[0094] The fixing part 2122 is an annular structure with an opening 2122a. The fixing part 2122 is connected to the second surface 2121d and is disposed around the lens mounting hole 2121e. The fixing part 2122 is fixedly connected to the second surface 2121d. The fixing part 2122 is used to connect with the rotating member 213.

[0095] In this embodiment, the fixing part 2122 can decouple the direct mating relationship between the rotating part 213 and the body 2121 of the swinging part 212. As an adaptation structure between the body 2121 and the swinging part 212, the fixing part 2122 can reduce the requirements for the machining accuracy of the body 2121 and the rotating part 213. The mating tolerance of the fixing part 2122 with the body 2121 and the swinging part 212 can be independently controlled and optimized. By adjusting the structure of the fixing part 2122 alone, the reliability of the connection between the body 2121 and the rotating part 213 can be improved, and the machining difficulty and cost of the swinging part 212 itself can be significantly reduced.

[0096] During assembly, the fixing part 2122 can be first inserted into the annular groove of the rotating part 213, and then the fixing part 2122 can be fixed to the body 2121 of the swinging part 212, making the installation process relatively simple. When the lens assembly 21 requires maintenance, the rotating part 213 can be easily removed by simply loosening the fixing point of the fixing part 2122 on the body 2121 of the swinging part 212. Replacing the worn fixing part 2122 is also simpler and faster, greatly improving the maintainability of the lens assembly 21.

[0097] Furthermore, the fixing part 2122 can also clamp the outer peripheral surface of the rotating member 213. When the rotating member 213 tends to rotate relative to the fixing part 2122, there is friction between the inner peripheral surface of the fixing part 2122 and the outer peripheral surface of the rotating member 213, generating frictional damping. Frictional damping can prevent the rotating member 213 from rotating due to imbalance, impact, or other disturbances, thus affecting the path of light passing through the lens 214 and improving the dynamic stability of the rotating member 213.

[0098] In one possible implementation, please refer to [the relevant documentation]. Figure 8 and Figure 9 , Figure 8 yes Figure 2 A schematic diagram of the lens assembly 21 from another angle. Figure 9 yes Figure 8 The diagram shows an exploded view of the lens assembly 21. The lens assembly 21 also includes a second driven part 2151 and a second recognition part 2152. The second driven part 2151 is rotatably connected to the positioning post 2114a of the second sensing and limiting part 2114 of the base 211. The second recognition part 2152 is disposed opposite to the second driven part 2151 in the X direction, and the second recognition part 2152 is capable of recognizing the rotation angle of the second driven part 2151.

[0099] The swing arm 2121b also includes a transmission part (not shown). The transmission part is connected to the outer periphery of the second end 2126. The transmission part contacts the second driven part 2151, and the swing of the swing arm 2121b can drive the second driven part 2151 to rotate through the transmission part. Exemplarily, the transmission part can be integrally formed with the swing arm 2121b. The transmission part can be a second gear. The second gear is connected to the outer peripheral surface of the second end 2126.

[0100] In this embodiment, the swing angle of the swing member 212 can be identified by the second driven part 2151 and the second identification part 2152, thereby determining the position of the incident surface of the lens 214 on the swing part, and further determining the incident angle of the light on the incident surface. The incident angle of the light on the lens 214 directly affects the refraction path of the light within the lens 214, and thus affects the illumination area of ​​the light transmitted through the lens 214. By identifying the angle of the lens 214, the illuminated area can be better controlled, so that the light source using the lens assembly 21 can accurately illuminate the preset area.

[0101] For example, the second driven part 2151 has an annular protrusion 2153 on the side opposite to the positioning post 2114a. A magnetic element 2154 is disposed inside the annular protrusion 2153. The inner circumferential surface of the annular protrusion 2153 can be connected to the magnetic element 2154. Rotation of the second driven part 2151 causes the magnetic element 2154 to rotate, and the second identification part 2152 can identify the rotation angle of the magnetic element 2154.

[0102] The second sensing limiting part 2114 also includes a first limiting plate 2155 and a second limiting plate 2156. The first limiting plate 2155 and the second limiting plate 2156 are connected to the connecting post 2114b of the second sensing limiting part 2114. The first limiting plate 2155 and the second limiting plate 2156 are spaced apart in the Z direction. The first limiting plate 2155 is used to limit the second driven part 2151, and the second limiting plate 2156 is used to limit the second identification part 2152.

[0103] For details, please continue reading Figure 9 The first limiting plate 2155 is provided with a first limiting hole 2155a, a second limiting hole 2155b and a third limiting hole 2155c.

[0104] A first limiting hole 2155a penetrates the first limiting plate 2155 along its thickness direction. A second limiting hole 2155b penetrates the first limiting plate 2155 along its thickness direction. There can be multiple second limiting holes 2155b. A third limiting hole 2155c penetrates the first limiting plate 2155 along its thickness direction. There can be multiple third limiting holes 2155c. For example, the first limiting hole 2155a, the second limiting hole 2155b, and the third limiting hole 2155c can be spaced apart along the Z-direction.

[0105] The first limiting plate 2155 is also provided with a spacer block 2155d. The spacer block 2155d is connected to the surface of the first limiting plate 2155 opposite to the second driven part 2151. The end face of the spacer block 2155d opposite to the first limiting plate 2155 is provided with a limiting protrusion 2155e.

[0106] The first limiting hole 2155a is fitted around the outer periphery of the annular protrusion 2153 of the second driven part 2151. The wall of the first limiting hole 2155a can contact the outer peripheral surface of the annular protrusion 2153. The second limiting hole 2155b is opposite to a portion of the connecting posts 2114b of the first sensing limiting part 2124. The end face of the connecting post 2114b of the first sensing limiting part 2124 can abut against the surface of the first limiting plate 2155. The first limiting hole 2155a can be fixedly connected to the connecting post 2114b by screws. The third limiting hole 2155c is fitted around the outer periphery of a portion of the connecting posts 2114b of the first sensing limiting part 2124, so that the connecting post 2114b can pass through the first limiting plate 2155 and be fixedly connected to the second limiting plate 2156.

[0107] The second limiting plate 2156 is provided with a fourth limiting hole 2156a and a positioning hole 2156b. The fourth limiting hole 2156a penetrates the second limiting plate 2156 along its thickness direction. There can be multiple fourth limiting holes 2156a. The positioning hole 2156b penetrates the second limiting plate 2156 along its thickness direction. There can be multiple positioning holes 2156b.

[0108] The fourth limiting hole 2156a of the second limiting plate 2156 is opposite to the connecting post 2114b passing through the third limiting hole 2155c, and the connecting post 2114b can be fixedly connected to the second limiting plate 2156 by screws. The positioning hole 2156b is fitted around the outer periphery of the limiting protrusion 2155e on the surface of the spacer block 2155d. The surface of the second limiting plate 2156 facing the first limiting plate 2155 can abut against the spacer block 2155d.

[0109] The second identification part 2152 can be connected to the surface of the second limiting plate 2156 facing the first limiting plate 2155. The second identification part 2152 is spaced apart from the magnetic element 2154.

[0110] For some possible implementations, please refer to [link / reference]. Figure 8 The lens assembly 21 also includes a second motor 216 and a second drive wheel 217. The second motor 216 can drive the swing arm 2121b to swing via the second drive wheel 217.

[0111] Specifically, the second motor 216 is connected to the motor connector 2113a of the second motor limiting portion 2113 of the base 211. At least a portion of the second motor 216 is located within the limiting groove 2113c of the motor connector 2113a. The second motor 216 is provided with a drive shaft that extends from the second motor 216 toward the shaft connector 2113b of the second motor limiting portion 2113. The end of the drive shaft away from the second motor 216 can be connected to the groove wall of the shaft connecting groove 2113d of the shaft connector 2113b via a bearing.

[0112] The second drive wheel 217 is sleeved on the outer periphery of the drive shaft of the second motor 216. Alternatively, the second drive wheel 217 may be integrally formed with the drive shaft. For example, the second drive wheel 217 may be a worm gear.

[0113] The second gear teeth on the outer periphery of the second end 2126 of the swing arm 2121b mesh with the second drive wheel 217, and the second motor 216 can drive the second gear teeth to rotate through the second drive wheel 217.

[0114] The second motor 216 can drive the second drive wheel 217 to rotate, thereby causing the swing arm 2121b of the swing member 212 to rotate. When the swing arm 2121b of the swing member 212 rotates, the second driven part 2151 is driven, thereby causing the magnetic part 2154 to rotate. The second identification part 2152 can identify the rotation angle of the magnetic part 2154, thereby determining the rotation angle of the swing arm 2121b.

[0115] Please see Figure 10 , Figure 10 for Figure 4 The diagram shows the structure of the rotating component 213. The rotating component 213 is annular. It includes an inner circumferential surface 2131, an outer circumferential surface 2132, a first surface 2133, and a second surface 2134. The first surface 2133 and the second surface 2134 are opposite in the thickness direction of the rotating component 213. The inner circumferential surface 2131 of the rotating component 213 has a recessed connecting member receiving groove 2135. The connecting member receiving groove 2135 is used to receive the lens 214. The connecting member receiving groove 2135 penetrates through the first surface 2133 of the rotating component 213. The outer circumferential surface of the rotating component 213 has an annular groove 2136 and a first gear tooth 2137. The annular groove 2136 is spaced apart from the first surface 2133 and the second surface 2134. The first gear tooth 2137 is connected to the outer circumferential surface of the rotating component 213 and is located between the annular groove 2136 and the first surface 2133.

[0116] Please refer to the following: Figure 10 and Figure 11 , Figure 11 yes Figure 10 The diagram shows a rotating member 213 fitted with a bearing 2138 and a fixed part 2122. Part of the annular groove 2136 of the rotating member 213 engages with the fixed part 2122 of the oscillating member 212. That is, part of the fixed part 2122 is located within the annular groove 2136 of the rotating member 213 and can slide within the annular groove 2136, while another part of the fixed part 2122 protrudes relative to the annular groove 2136 and is fixedly connected to the body 2121 of the oscillating member 212.

[0117] For example, a bearing 2138 may be fitted onto a portion of the outer peripheral surface between the annular groove 2136 of the rotating member 213 and the second surface 2134. The inner peripheral surface of the bearing 2138 is fitted onto the outer peripheral surface of the rotating member 213, and the outer peripheral surface of the bearing 2138 is connected to the wall of the lens mounting hole 2121e of the body 2121 of the swing member 212.

[0118] In this embodiment, the bearing 2138 can reduce the friction between the hole wall of the lens mounting hole 2121e and the outer peripheral surface of the rotating member 213, support the rotating member 213, and ensure that the rotating member 213 can rotate smoothly and efficiently.

[0119] For some possible implementations, please refer to [link / reference]. Figure 11 The lens assembly 21 also includes a connector 218. The connector 218 is annular. The outer peripheral surface of the connector 218 is fixedly connected to the inner peripheral surface 2131 of the rotating member 213. Alternatively, the outer peripheral surface of the connector 218 can be fixedly connected to the inner peripheral surface 2131 of the rotating member 213 by adhesive. The inner peripheral surface of the connector 218 is fixedly connected to the lens 214.

[0120] In this embodiment, the rotating component 213 is generally made of metal. The lens 214 generally has slightly lower structural strength than metal components. If the lens 214 is directly mounted on the rotating component 213, localized stress concentration can easily occur at the contact surface between the lens 214 and the rotating component 213, leading to easy cracking or deformation of the lens 214. By using a connecting component 218 to buffer the movement between the lens 214 and the rotating component 213, and by connecting the connecting component 218 to the peripheral surface of the lens 214, the load distribution around the lens 214 can be made more uniform, reducing the risk of lens 214 breakage.

[0121] Furthermore, the change in the direction of light refraction is directly related to the rotation angle of lens 214. Lens 214 rotates at the same angle as rotating element 213. By controlling the rotation angle of rotating element 213, the positional change of the illumination area of ​​the light passing through lens 214 can be precisely and predictably controlled. This is crucial for applications requiring precise positioning of the illumination area (such as projection, aiming, and targeted area lighting).

[0122] By directly mounting the lens 214 in the middle of the rotating component 213, a compact structure can be formed. The middle region of the lens 214 can coincide with the middle region of the rotating component 213, thereby simplifying the optical path design and reducing the space occupied by the rotation of the lens 214.

[0123] When the rotating component 213 rotates, it drives the lens 214 to rotate, which can continuously and dynamically change the angle of the normal direction of the exit surface and / or incident surface of the lens 214 relative to the light source, thereby efficiently changing the convergence point or deflection direction of the light, and realizing rapid, large-area scanning or precise positioning of the illumination area.

[0124] The lens 214 is connected to the rotating member 213 and covers the lens mounting hole 2121e. The lens 214 can be driven by the rotating member 213 to rotate relative to the swing member 212.

[0125] For example, please refer to Figure 12 , Figure 12 yes Figure 11 The diagram shows the structure of lens 214. Lens 214 includes a first lens layer 2141 and a second lens layer 2142, which are stacked together. The peripheral surfaces of the first lens layer 2141 and the second lens layer 2142 are connected to the inner peripheral surface of the connector 218.

[0126] In this embodiment, two lenses 214 are stacked. Increasing the number of material layers of the lens 214 can increase the number of reflections and refractions of light inside the lens 214, thereby enhancing the refraction effect.

[0127] This application uses a Fresnel lens 214 as an example for illustration. Exemplarily, the Fresnel lens 214 provided in this embodiment can be made of polyolefin materials, glass, plastics, composite materials, etc.

[0128] A complete Fresnel lens 214, viewed in cross-section, has a surface composed of a series of serrated grooves, with an elliptical arc at its center. Each groove can be considered an independent microlens 214, which adjusts light rays into parallel or focused light. When light enters from one side of the lens 214, it is refracted and diffracted by these grooves, and then focused into a point on the other side of the lens 214 or exits as parallel light. The Fresnel lens 214 in this embodiment can be a part of a complete Fresnel lens 214.

[0129] In this embodiment, the Fresnel lens 214 achieves a lighter and thinner design by removing some material. This lightweight and thin design makes the Fresnel lens 214 easier to install.

[0130] For one possible implementation, please refer to [link / reference]. Figure 12The first lens layer 2141 includes a first light-incident surface 2141a and a first light-exiting surface 2141b. The first light-incident surface 2141a can be a plane, a sphere, or a freeform surface. The first light-incident surface 2141a is the incident surface of light rays from the first lens layer 2141. The first light-exiting surface 2141b is a first sawtooth surface. The first sawtooth surface includes multiple strip-shaped optical surfaces 2141c (or partially annular or linear) and connecting surfaces 2141d. The optical surfaces 2141c and connecting surfaces 2141d are bent and connected to form sawtooth. The connecting surface 2141d can be perpendicular to the first light-incident surface 2141a. The strip-shaped optical surfaces 2141c can be spherical surfaces with a certain curvature. The strip-shaped optical surfaces 2141c are also the Fresnel surfaces of the Fresnel lens 214. The strip-shaped optical surfaces are the exit surfaces of light rays.

[0131] The second lens layer 2142 includes a second light-incident surface 2142a and a second light-exiting surface 2142b. The second light-incident surface 2142a is adapted to the first light-exiting surface 2141b. The second light-incident surface 2142a is attached to the first light-exiting surface 2141b. The second light-exiting surface 2142b includes a plurality of strip-shaped optical surfaces 2142c (or partially annular or linear) and a connecting surface 2142d. The optical surfaces 2142c and the connecting surface 2142d are bent and connected to form a sawtooth pattern. The strip-shaped optical surfaces 2142c can be spherical surfaces with a certain curvature. The curvature of the strip-shaped optical surfaces 2142c of the second light-exiting surface 2142b is different from the curvature of the optical surfaces 2141c of the first light-exiting surface 2141b. For example, the curvature of the optical surfaces 2142c of the second light-exiting surface 2142b can be smaller than the curvature of the first light-exiting surface 2141b.

[0132] For example, the incident surface (first incident surface 2141a) and the exit surface (second exit surface 2142b) of lens 214 can also be interchanged. That is, lens 214 can be flipped so that the serrated exit surface (second exit surface 2142b) of Fresnel lens 214 faces the light source. This application does not limit the way lens 214 is used.

[0133] Please see Figure 13 , Figure 13 yes Figure 4 The diagram shows the structure of the oscillating member 212 and the components mounted on it. The lens assembly 21 also includes a first motor 219 and a first drive wheel 220. The first motor 219 can drive the rotating member 213 to rotate via the first drive wheel 220.

[0134] The first motor 219 is connected to the motor connector 2113a of the first motor limiting portion 2123 of the swing member 212. At least a portion of the first motor 219 is located within the limiting groove 2123c of the motor connector 2123a. The first motor 219 is provided with a drive shaft that extends from the first motor 219 to the rotating shaft connector 2123b of the first motor limiting portion 2123. The end of the drive shaft away from the first motor 219 can be connected to the groove wall of the shaft connecting groove 2123d of the rotating shaft connector 2123b via a bearing.

[0135] The first drive wheel 220 is sleeved on the drive shaft of the first motor 219. Alternatively, the first drive wheel 220 may be integrally formed with the drive shaft. For example, the first drive wheel 220 may be a worm gear.

[0136] The first gear 2137 of the rotating component 213 is engaged with the first drive wheel 220. The first motor 219 can drive the first gear 2137 to rotate via the first drive wheel 220.

[0137] The first motor 219 can drive the first drive wheel 220 to rotate, thereby driving the rotating component 213 and the lens 214 to rotate.

[0138] In this embodiment, the power of the first motor 219 can drive the rotating member 213 to rotate relative to the swing member 212 through transmission, thereby driving the lens 214 to rotate relative to the body 2121 of the swing member 212, so as to change the illumination area of ​​the light passing through the lens 214.

[0139] In addition, the high-precision control capability of the motor ensures that the first drive wheel 220 moves at a predetermined speed when it rotates, thereby making the rotation angle of the rotating part 213 relative to the body 2121 of the swing body more precise, so as to make the positioning of the illuminated area of ​​the light transmitted through the lens 214 more accurate and improve the user experience.

[0140] For some possible implementation methods, please refer to the following: Figure 7 , Figure 13 and Figure 14 , Figure 14 yes Figure 13 The diagram shows a partially exploded view of the lens assembly 21. The lens assembly 21 also includes a first driven part 221 and a first identification part 222. The first driven part 221 is rotatably connected to the positioning post 2114a of the first sensing limiting part 2124 and meshes with the first gear tooth 2137 of the rotating member 213. The first driven part 221 can be driven to rotate by the rotating member 213. The first identification part 222 is connected to the body 2121 and can identify the rotation angle of the first driven part 221.

[0141] For example, a magnetic element 223 is provided at the center of the side of the first driven part 221 opposite to the positioning post 2114a. The rotation of the first driven part 221 drives the magnetic element 223 to rotate, and the first identification part 222 can identify the rotation angle of the magnetic element 223.

[0142] The first sensing limiting part 2124 also includes a third limiting plate 224. The third limiting plate 224 is connected to the connecting post 2124b of the first sensing limiting part 2124 by screws. The orthographic projection of the third limiting plate 224 onto the body 2121 of the swing member 212 covers at least a portion of the first driven part 221. A first identification part 222 is provided on the surface of the third limiting plate 224 facing the first driven part 221. For example, the first identification part 222 can be a Hall sensor. The first identification part 222 can identify changes in the magnetic field, thereby identifying the rotation angle of the magnetic member 223.

[0143] In this embodiment, precise control of the illuminated area can be achieved by identifying the rotation angle of the lens 214. By monitoring the angle of the lens 214 in real time, errors in the transmission of the rotating component 213 can be compensated in a timely manner, ensuring that the direction of light refraction accurately matches the preset value, thereby improving the positioning accuracy of the illuminated area. This is applicable to scenarios such as tracking moving targets or switching lighting.

[0144] The headlight 20 includes a first working state and a second working state. When the headlight 20 is in the first working state, the swing member 212 is located outside the light path of the lamp source. When the headlight 20 is in the second working state, the lens 214 is located inside the light path of the lamp source.

[0145] When the headlight 20 is in its first working state, please refer to the following: Figure 3 and Figure 15 , Figure 15 yes Figure 1 The diagram shows the structure of the headlight 20 in its first working state. The lens assembly 21 is in a non-working state, and the swing member 212 is located outside the light transmission path of the light-transmitting aperture 2111a. At this time, the headlight 20 can illuminate the first area A.

[0146] When headlight 20 is in its second operating state, please refer to the following: Figure 3 , Figure 16 and Figure 17 , Figure 16 yes Figure 1 The diagram shows a structural schematic of the headlight 20 in its second working state. Figure 17 yes Figure 1 The diagram shows another structural schematic of the headlight 20 in its second operating state. The lens assembly 21 is in the operating state, with the lens 214 facing the light-transmitting aperture 2111a.

[0147] In this embodiment, the swing member 212 can change the position of the lens 214 relative to the base 211, thereby switching the position of the lens 214 so that the lens 214, which is located outside the light transmission path of the light-transmitting aperture 2111a, moves into the light transmission path of the light-transmitting aperture 2111a. By changing the propagation direction of the light passing through the lens 214, the light can be deflected closer to the light source, allowing the light passing through the lens 214 to reach the second region B, which is closer to the light source. The rotating member 213 can rotate the illuminated area around the periphery of the light source. For example, the projection area can change from the third region C1 on the left side of the light source to the third region C2 on the right side, thereby expanding the field of view of the light source using the lens assembly 21. This makes the light source using the lens assembly 21 applicable to more usage scenarios.

[0148] In practical use, when the lens assembly 21 is applied to the vehicle 100, it can be used in a welcoming scene when the area near the vehicle 100 can be illuminated. When the driver approaches the vehicle 100, the vehicle 100 can illuminate or project a pattern into the path the driver is approaching, which not only makes it easier for the driver to quickly find their vehicle 100 in a dark environment, but also creates a warm atmosphere and optimizes the user experience.

[0149] When a vehicle is in motion, the light emitted from the lamp source can form a light carpet effect after passing through lens 214. This turning light carpet can predict the vehicle 100's path in real time. When the vehicle 100 is about to change lanes or turn, the light carpet bends accordingly, clearly indicating the vehicle 100's driving intention. This not only helps the driver better understand the vehicle 100's dynamics but also allows pedestrians and other vehicles to react in advance, avoiding collisions.

[0150] For some possible implementation methods, please refer to [the relevant documentation / reference]. Figure 2 and Figure 4 The lens assembly 21 also includes a cover 225. The cover 225 has a relief groove 2251 and is connected to one side of the second surface 2121d of the swing member 212. The relief groove 2251 exposes the lens 214 and the cover 225 covers the connector 218.

[0151] In this embodiment, the cover 225 can cover the connector 218 to prevent the connector 218 from falling off the rotating member 213. The cover 225 can also cover the rotating member 213, connector 218, fixing part 2122, first motor 219, first driven part 221, first identification part 222 and other structures on the body 2121 of the swing member 212, so as to make the appearance of the lens assembly 21 more concise.

[0152] For example, the headlight 20 may also be equipped with a controller (not shown). The controller can communicate with the computer system in the vehicle 100 via the vehicle 100's bus to receive various information or control signals, and then send information to the headlight 20 to control the direction of light propagation of the headlight 20 to achieve the desired lighting effect. It should be noted that, with the development of technology, the controller's function may be integrated into the vehicle's computer system, with the computer system directly controlling the headlight 20 to change the direction of light propagation. For example, the controller may be integrated into the cockpit domain controller. This application does not limit the specific working method of the controller.

[0153] The headlight 20 can also integrate some sensing modules, such as integrating any of the sensing modules such as lidar, millimeter-wave radar or infrared detection devices into the headlight 20 to form a headlight 20 with integrated sensing and illumination.

[0154] In this embodiment, the lidar is combined with the intelligent driving system of the vehicle 100. The lidar can monitor the surrounding environment in real time and provide the vehicle 100 with timely obstacle avoidance and braking information, thereby improving driving safety.

[0155] 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.

[0156] 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 20, ensuring the quality and performance of the lights 20 by detecting gas leakage between the lamp cover and the bulb.

[0157] 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 lens assembly, characterized by, include: The base has a light-transmitting hole that penetrates the base along a first direction, which is the thickness direction of the base. The base has a light-transmitting path that passes through the light-transmitting hole. A swinging component is rotatably connected to the base, and the swinging component is provided with a lens mounting hole that penetrates the swinging component; A rotating component, which is rotatably connected to the swinging component; A lens is connected to the rotating member and covers the lens mounting hole. The lens can be driven by the rotating member to rotate relative to the swing member. When the lens assembly is in a non-working state, the oscillating member is located outside the light transmission path. When the lens assembly is in a working state, the oscillating member can oscillate relative to the base, causing the lens to face the light transmission hole.

2. The lens assembly of claim 1, wherein, The rotating component is annular, with its inner circumferential surface surrounding the lens. The rotating component has an annular groove formed by the outer circumferential surface of the rotating component, and the swinging component is engaged within the annular groove.

3. The lens assembly of claim 2, wherein, The swinging component includes a body and a fixing part. The body is provided with the lens mounting hole. Part of the fixing part is located in the annular groove and can slide in the annular groove. Another part of the fixing part protrudes relative to the annular groove and is fixedly connected to the body.

4. The lens assembly of claim 3, wherein, The lens module further includes a first driven part and a first identification part. The first driven part is rotatably connected to the body and contacts the outer peripheral surface of the rotating member. The rotation of the rotating member can drive the first driven part to rotate. The first identification part is connected to the body and can identify the rotation angle of the first driven part.

5. The lens assembly of claim 3 or 4, wherein, The lens assembly further includes a connector, which is annular in shape. The outer peripheral surface of the connector is fixedly connected to the inner peripheral surface of the rotating component, and the inner peripheral surface of the connector is fixedly connected to the lens.

6. The lens assembly of claim 5, wherein, The lens includes a first lens layer and a second lens layer, which are stacked together, and the peripheral surfaces of the first lens layer and the second lens layer are connected to the inner peripheral surface of the connector.

7. The lens assembly of claim 6, wherein, The lens assembly also includes a cover with a clearance groove. The cover is connected to the swing member and covers the connector and the rotating member. The clearance groove exposes the lens.

8. The lens assembly according to any one of claims 1-4, characterized in that, The lens assembly further includes a first motor and a first drive wheel, wherein the first motor is connected to the swing member and the first drive wheel; The outer circumferential surface of the rotating component is provided with a first gear tooth, which meshes with the first drive wheel. The first motor drives the first drive wheel to rotate, thereby causing the first gear tooth to rotate.

9. The lens assembly of claim 5, wherein, The main body includes a mounting part and a swing arm. The mounting part is provided with the lens mounting hole. The swing arm includes a first end and a second end. The first end is fixedly connected to the mounting part, and the second end is rotatably connected to the base. The swing arm can swing about a second direction as an axis, and the second direction is different from the first direction.

10. The lens assembly of claim 9, wherein, The lens assembly further includes a second driven part and a second identification part. The second driven part is rotatably connected to the base, and the second identification part and the second driven part are disposed opposite to each other in the second direction. The second identification part is capable of identifying the rotation angle of the second driven part. The swing arm also includes a transmission part, which is connected to the outer periphery of the second end and contacts the second driven part. The swing arm can drive the second driven part to rotate through the transmission part.

11. The lens assembly of claim 10, wherein, The lens assembly also includes a magnetic component connected to the second driven part. The rotation of the second driven part drives the magnetic component to rotate, and the second recognition part can recognize the rotation angle of the magnetic component.

12. The lens assembly of claim 10, wherein, The lens assembly further includes a second motor and a second drive wheel, the second motor being connected to the base and the second drive wheel; The transmission unit meshes with the second drive wheel, and the second motor can drive the transmission unit to rotate through the second drive wheel.

13. A projection apparatus, characterized by comprising: Includes a light source and a lens assembly as described in any one of claims 1-12, wherein the light source is connected to the base and is capable of emitting light through the light-transmitting hole; The projection device includes a first working state and a second working state. When the projection device is in the first working state, the oscillating member is located outside the light path of the lamp source. When the projection device is in the second working state, the lens is located inside the light path of the lamp source.

14. A vehicle light, characterized in that, It includes a lamp housing and a lens assembly as described in any one of claims 1-12, the lens assembly being mounted within the lamp housing.

15. A terminal, characterized by It includes a body structure and a lens assembly as described in any one of claims 1-12, the lens assembly being connected to the body structure.

Images