Lens assembly, image display system, vehicle-mounted lamp, vehicle lamp system, and vehicle

Abstract

Provided in the embodiments of the present application are a lens assembly, an image display system, a vehicle-mounted lamp, a vehicle lamp system, and a vehicle. The lens assembly comprises a support, a driving member, a worm gear, a first swing arm and a lens component. The worm gear is connected to the driving member, and the driving member is configured to drive the worm gear to rotate. The first swing arm is rotatably connected to the support. The first swing arm is provided with a bevel gear portion. The bevel gear portion is configured to mesh with the worm gear, so that the first swing arm rotates relative to the support. The lens component is mounted on the first swing arm, and the lens component can rotate along with the first swing arm, so as to be located on a light exit path of image light output by a projection module and dim the image light, or move away from the light exit path. When dimming is required, the image light is dimmed by means of the lens component, so as to facilitate an improvement in the image display effect and the user experience, and when dimming is not required, the lens component is switched out of the light exit path, so as to realize flexible switching, such that various scenario requirements for image display of the projection module can be met.

Description

Lens assemblies, image display systems, automotive lights, vehicle lighting systems and vehicles

[0001] This application claims priority to Chinese Patent Application No. 202423030393.9, filed on December 10, 2024, entitled "Lens Assembly, Image Display System, Vehicle Light, Vehicle Lighting System and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of automotive lighting technology, and in particular to a lens assembly, an image display system, an automotive lamp, an automotive lighting system, and a vehicle. Background Technology

[0003] In recent years, consumers have developed more personalized demands for lighting fixtures on transportation vehicles (such as vehicle headlights). For example, ambient lighting such as near-field welcome lights and angel wings lights are very popular. However, some display parameters of existing projection modules (such as focal length, field of view, brightness, etc.) are usually set at the factory. In practical applications, for example, the projection module is not easy to adjust flexibly, which can result in poor image display or display effects that are not what users expect, affecting the user experience. Summary of the Invention

[0004] This application provides a lens assembly, an image display system, a vehicle lamp, a vehicle lighting system, and a vehicle. The lens assembly can adjust the image light output by the projection module, thereby improving the display effect and user experience.

[0005] In a first aspect, one embodiment of this application provides a lens assembly, which includes a support, a drive member, a worm gear, a first swing arm, and a lens component. The worm gear is connected to the drive member, which drives the worm gear to rotate. The first swing arm is rotatably connected to the support and has a helical gear portion for meshing with the worm gear, thereby causing the first swing arm to rotate relative to the support. The lens component is mounted on the first swing arm. The lens component can rotate with the first swing arm to be positioned in the output light path of the image light output by the projection module and to adjust the image light, or to be moved away from the output light path.

[0006] When the lens component is located on the output light path of the image light from the projection module, it can be considered to be in the working position. After the lens component is moved away from the output light path, it can be considered to be in the idle position. When the lens component is in the working position, it can dim the image light output by the projection module.

[0007] The lens assembly provided in this application drives the first swing arm to rotate relative to the bracket via a driving component, enabling the lens component to switch between a working position and an idle position. In this way, when it is necessary to adjust the image light of the projection module, the lens component is inserted into the output light path of the image light. Thus, without changing the display parameters of the projection module itself, the image light can be adjusted by the lens assembly set outside the projection module, which is beneficial to improving the image display effect. When it is not necessary to adjust the image light of the projection module, the lens component is removed from the output light path, realizing flexible switching and meeting the needs of various scenarios of image display of the projection module.

[0008] Furthermore, the transmission achieved through the meshing of the worm gear and helical gear allows for stepless adjustment, thereby improving the smoothness and stability of the first swing arm's rotation. When the lens component is in the working position, its position can be adjusted by regulating the rotation or swing angle of the first swing arm via the drive component, which expands the application range of the image display system. The meshing of the worm gear and helical gear enables self-locking, further enhancing the positional stability of the lens component. Consequently, the image light emitted from the lens component is less prone to flickering when projected onto the projection surface, thus improving the image display effect.

[0009] According to the first aspect, in one possible implementation, in the length extension direction of the first swing arm, the helical gear portion includes a plurality of helical teeth arranged along the periphery of the first end of the first swing arm, and the lens component is located at the second end of the first swing arm.

[0010] In this possible implementation, a helical gear portion is integrated at one end of the first swing arm, eliminating the need for a separate helical gear. This helps reduce the number of components in the lens assembly and simplifies the structure of the lens assembly.

[0011] According to the first aspect, in one possible implementation, the bracket is provided with a light-transmitting hole, and the first swing arm rotates relative to the bracket about a first rotation axis. In the direction of the first rotation axis, the drive component and the worm gear are both located outside the light-transmitting hole and on the same side of the bracket, which is beneficial to reduce the transmission distance and reduce the space occupied by the lens assembly.

[0012] According to the first aspect, in one possible implementation, the bracket includes a mounting portion and a support portion protruding from one side of the mounting portion. The mounting portion and the support portion together form a light-transmitting hole. In the direction of the first rotation axis, the width of the mounting portion is greater than the width of the support portion. The drive member and the worm gear are located within the receiving space enclosed by the support portion and the mounting portion.

[0013] In this possible implementation, the drive unit and the worm gear share the same storage space on one side of the support, occupying only a small side space on one side of the bracket. This can save side installation space while realizing the dimming and switching of the image light of the projection module, and facilitate the layout of other components.

[0014] According to the first aspect, in one possible implementation, the lens assembly further includes a second swing arm rotatably connected to the support, the lens component being connected between the first swing arm and the second swing arm, and a light-transmitting aperture being located between a portion of the second swing arm and a portion of the first swing arm in the direction of the first rotation axis.

[0015] In this possible implementation, the lens component is rotatably connected to the support via the first swing arm and the second swing arm, which helps to ensure that the lens component is supported at both ends in the direction of the first rotation axis, thereby improving the stability of the lens component.

[0016] According to the first aspect, in one possible implementation, the bracket is provided with a receiving groove, the driving component includes a driving body and a driving shaft, at least a portion of the driving body is received in the receiving groove, the driving shaft is connected to the driving body and extends out of the receiving groove, the driving shaft is connected to a worm gear, and the driving shaft is used to drive the worm gear to rotate.

[0017] In this possible implementation, the receiving slot can be used to position the drive component when it is mounted on the bracket, which helps to improve the convenience of lens assembly assembly.

[0018] According to the first aspect, in one possible implementation, the lens assembly further includes a cover connected to the support, the cover being disposed over the receiving groove, and a drive unit located between the cover and the support. The cover serves to protect the drive unit and prevent it from detaching from the support. The cover may, but is not limited to, being fixedly connected to the support by fasteners.

[0019] According to the first aspect, in one possible implementation, the worm gear is located between the cover and the support, and the cover can also be used to protect the worm gear and reduce interference from other components other than the lens assembly on the transmission between the worm gear and the helical gear.

[0020] According to the first aspect, in one possible implementation, the lens component includes at least one of a Fresnel lens, a mirror, a filter, a condenser, a diffuser, and a prism.

[0021] In this possible implementation, the image light is adjusted by one or more lenses in the lens component, which can support multiple scenarios, such as near-field welcome lighting, curved lighting, side light carpet and other new lighting scenarios.

[0022] Secondly, one embodiment of this application provides an image display system, including a projection module and a lens assembly provided according to any possible implementation of the first aspect, wherein the projection module is used to output image light.

[0023] Thirdly, one embodiment of this application provides a vehicle lamp, which includes a projection module and a lens assembly provided according to any possible implementation of the first aspect, wherein the projection module is used to output image light.

[0024] According to the first aspect, in one possible implementation, the projection module includes a light source, a projection chip, and a projection lens. The light source is used to output light to the projection chip, the projection chip is used to modulate the light input to the projection chip and output image light to the projection lens, the projection lens is used to project image light, and the lens component can be located in the light output path of the image light output by the projection lens, or can be moved away from the light output path.

[0025] Fourthly, one embodiment of this application provides a vehicle lighting system, including a lamp housing and a vehicle lamp according to the third aspect, wherein the vehicle lamp is housed within the lamp housing.

[0026] Fifthly, one embodiment of this application provides a vehicle, which includes at least one of an image display system provided according to the second aspect and vehicle lights provided according to the third aspect. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the light output path of an image display system provided in an embodiment of this application, in which the lens component is not located in the image light output from the projection module;

[0028] Figure 2 is a schematic diagram of the light output path of an image display system provided in an embodiment of this application, in which the lens component is not located in the image light output from the projection module;

[0029] Figure 3 is a schematic diagram of the lens assembly provided in one embodiment of this application;

[0030] Figure 4 is a structural schematic diagram of the lens assembly provided in one embodiment of this application from another perspective;

[0031] Figure 5 is a partial structural schematic diagram of the helical gear section provided in one embodiment of this application;

[0032] Figure 6 is a functional block diagram of a projection module provided in one embodiment of this application;

[0033] Figure 7 is a functional block diagram of a vehicle provided in one embodiment of this application;

[0034] Figure 8 is a schematic diagram of a vehicle provided in one embodiment of this application;

[0035] Figure 9 is a schematic diagram of a vehicle lighting system provided in one embodiment of this application.

[0036] Reference numerals: 1. Image display system; 10. Projection module; 11. Light source; 12. Projection chip; 13. Projection lens; 30. Lens assembly; 31. Bracket; 312. Mounting part; 314. Support part; 316. Light-transmitting hole; 318. Receiving slot; 32. Driving component; 322. Driving body; 324. Driving shaft; 33. Worm gear; 34. First swing arm; 341. Helical gear part; 3411. Helical gear; 35. Lens component; 36. Second swing arm; 37. Cover; 110. Computer system; 111. Processor; 112. Memory; 120. Advanced driver assistance system; 130. Sensing system; 140. Lighting prompt system; 150. Display system; 160. Peripheral equipment; 170. Control system; 180. Power supply; 100. Vehicle; 101. Headlight; 201. Lamp housing. Detailed Implementation

[0037] In recent years, consumers have developed more personalized demands for lighting fixtures on transportation vehicles (such as vehicle headlights). For example, ambient lighting such as near-field welcome lights and angel wings lights are very popular. However, some display parameters of existing projection modules (such as focal length, field of view, brightness, etc.) are usually set at the factory. But in actual applications, for example, the projection module is not easy to adjust flexibly, which can result in poor image display or display effects that are not expected by users. For example, the field of view is too small, or the display range is too small, or the brightness is insufficient, or the display mode is limited, etc., which affects the user experience.

[0038] Based on this, referring to Figures 1 and 2, one embodiment of this application provides an image display system 1, including a projection module 10 and a lens assembly 30. The projection module 10, as an image generation unit (PGU), is used to output image light. The lens assembly 30 is used to adjust the image light output by the projection module 10 to improve display effects and user experience. Adjusting the image light by the lens assembly 30 includes at least one of changing the optical path of the image light, focusing and brightening the image light, expanding the illumination range of the image light, and adjusting the color of the image light. Changing the optical path of the image light includes deflecting the image light incident on the lens assembly 30 by a specific angle.

[0039] Referring to Figures 3 and 4, this application provides a lens assembly 30, which includes a support 31, a drive member 32, a worm gear 33, a first swing arm 34, and a lens component 35. The worm gear 33 is connected to the drive member 32, which drives the worm gear 33 to rotate. The first swing arm 34 is rotatably connected to the support 31 and is provided with a helical gear portion 341, which meshes with the worm gear 33 to cause the first swing arm 34 to rotate relative to the support 31. The lens component 35 is mounted on the first swing arm 34. The lens component 35 can rotate with the first swing arm 34 to be positioned in the output light path of the image light output by the projection module 10 and to adjust the image light, or to be moved away from the output light path.

[0040] As shown in Figure 2, when the lens component 35 is located on the output light path of the image light from the projection module 10, it can be considered to be in the working position. The specific position of the working position is not limited; the position of the lens component 35 can be adjusted to meet various application scenarios. As shown in Figure 1, when the lens component 35 is moved away from the output light path, it can be considered to be in the idle position. When the lens component 35 is in the working position, it can dim the image light output by the projection module 10. For example, in some embodiments, when the lens component 35 is in the idle position, the image light projected by the projection module 10 does not pass through the lens component 35, and the projection position of the image light on the projection plane is P1. The display mode of the image display system 1 can be the normal lighting mode. When the lens component 35 is in the working position, the image light projected by the projection module 10 passes through the lens component 35, and the projection position of the image light adjusted by the lens component 35 on the projection plane is P2. Compared with P1, the distance between P2 and the projection module 10 is smaller. The display mode of the image display system 1 can be the near-field welcoming mode or the near-field projection mode, etc.

[0041] Please refer to Figures 3 and 4. The lens assembly 30 provided in this application drives the first swing arm 34 to rotate relative to the bracket 31 via the drive component 32, enabling the lens component 35 to switch between a working position and an idle position. In this way, when it is necessary to adjust the image light of the projection module 10, the lens component 35 is inserted into the output light path of the image light. Thus, without changing the display parameters of the projection module 10 itself, the lens assembly 30 set outside the projection module 10 helps to improve the image display effect. When it is not necessary to adjust the image light of the projection module 10, the lens component 35 is removed from the output light path, realizing flexible switching and meeting the various scenario requirements of the image display of the projection module 10.

[0042] Furthermore, the transmission achieved through the meshing of the worm gear 33 and the helical gear 341 allows for stepless adjustment, thereby improving the smoothness and stability of the rotation of the first swing arm 34. When the lens component 35 is in the working position, its position can be adjusted by changing the rotation or swing angle of the first swing arm 34 via the drive component 32, which helps to expand the application range of the image display system 1. The meshing of the worm gear 33 and the helical gear 341 enables self-locking, which helps to improve the positional stability of the lens component 35. As a result, the image light after being dimmed by the lens component 35 is less prone to shaking when displayed on the projection plane, thus improving the image display effect.

[0043] In this embodiment, the first swing arm 34 can rotate relative to the support 31 about the first rotation axis, and the worm gear 33 can rotate relative to the support 31 about the second rotation axis. The second rotation axis and the first rotation axis can be, but are not limited to, being perpendicular to each other.

[0044] In some embodiments of this application, the bracket 31 supports the drive component 32, the worm gear 33, the first swing arm 34, and the lens component 35. The bracket 31 can be an independent structure or it can be part of the vehicle 100. The bracket 31 includes a mounting portion 312 and a support portion 314 protruding from one side of the mounting portion 312. The mounting portion 312 and the support portion 314 together form a light-transmitting hole 316. The mounting portion 312 is used to connect with other structures. In the direction of the first rotation axis, the width of the mounting portion 312 is greater than the width of the support portion 314. The drive component 32 and the worm gear 33 are located within the receiving space enclosed by the support portion 314 and the mounting portion 312. The first swing arm 34 can rotate relative to the bracket 31 around the first rotation axis. In the direction of the first rotation axis, the drive member 32 and the worm gear 33 are both located outside the light-transmitting hole 316 and on the same side of the bracket 31. The drive member 32 and the worm gear 33 share the receiving space on one side of the support part 314, occupying only a small side space on one side of the bracket 31. This can save side installation space while realizing the dimming and switching of the image light of the projection module 10, and facilitate the layout of other components. For example, the headlights of a vehicle are located on the front side of the vehicle. The space for installing headlights on the front side is small, and there are usually two headlights. When the lens assembly 30 is applied to the headlights of a vehicle for dimming, the space occupied by the meshing structure of the worm gear 33 and the helical gear part 341 is small, which is more conducive to the dual-lamp scenario of the vehicle.

[0045] The mounting section 312 has a receiving groove 318 on its outer wall facing the receiving space for receiving at least a portion of the drive component 32. The receiving groove 318 can be used to position the drive component 32 when it is mounted on the bracket 31, which helps to improve the ease of assembly of the lens assembly 30. It is understood that the receiving groove 318 can be omitted, and the drive component 32 can be directly mounted on the bracket 31.

[0046] It is understood that this application does not limit the structure of the bracket 31. For example, the mounting part 312 can be omitted. The bracket 31 is provided with a light-transmitting hole 316. The first swing arm 34 rotates relative to the bracket 31 around the first rotation axis. In the direction of the first rotation axis, the driving member 32 and the worm gear 33 are both located outside the light-transmitting hole 316 and on the same side of the bracket 31, which is beneficial to reduce the transmission distance and reduce the space occupied by the lens assembly 30.

[0047] It is understandable that the drive component 32 may not be mounted on the bracket 31, but on other structures. For example, when the lens assembly 30 is used in a vehicle, the bracket 31 may be a part of the vehicle body structure.

[0048] In some embodiments of this application, referring to Figures 4 and 5, in the length extension direction of the first swing arm 34, the helical gear portion 341 includes a plurality of helical teeth 3411, which are arranged along the periphery of the first end of the first swing arm 34, and the lens component 35 is located at the second end of the first swing arm 34. The helical gear portion 341 is integrated into the periphery of one end of the first swing arm 34, eliminating the need for a separate helical gear, which helps reduce the number of components in the lens assembly 30 and simplifies the structure of the lens assembly 30.

[0049] It is understood that the multiple helical teeth 3411 are not limited to being located at the periphery of the first end of the first swing arm 34, that is, the helical gear portion 341 is not limited to being located at the first end of the first swing arm 34. The helical gear portion 341 can be provided at other positions of the first swing arm 34, for example, the helical gear portion 341 is formed in the middle of the side of the first swing arm 34 facing the support 31.

[0050] It is understood that the first swing arm 34 can be rotatably connected to the bracket 31 through the first rotating shaft. The first rotating shaft can protrude from the first swing arm 34 or the bracket 31, or the first rotating shaft can rotatably pass through the first swing arm 34 and the bracket 31, as long as the first swing arm 34 can rotate relative to the bracket 31.

[0051] It is understood that the first swing arm 34 may include a separately configured arm body and a helical gear part 341. The helical gear part 341 may be a separate gear structure and is fixed to the arm body.

[0052] In some embodiments of this application, please refer again to Figures 3 and 4. The driving component 32 includes a driving body 322 and a driving shaft 324. At least a portion of the driving body 322 is housed within a receiving groove 318. The driving shaft 324 is connected to the driving body 322 and extends out of the receiving groove 318. The driving shaft 324 is connected to a worm gear 33 and is used to drive the worm gear 33 to rotate. The driving component 32 can be a motor. It is understood that this application does not limit the specific type of the driving component 32; the driving component 32 can be a cylinder, hydraulic cylinder, etc.

[0053] In some embodiments of this application, the lens assembly 30 further includes a second swing arm 36 rotatably connected to the support 31, and the lens component 35 is connected between the first swing arm 34 and the second swing arm 36. In the direction of the first rotation axis, the light-transmitting hole 316 is located between the second swing arm 36 and the first swing arm 34. The lens component 35 is rotatably connected to the support 31 via the first swing arm 34 and the second swing arm 36, which helps to ensure that both ends of the lens component 35 are supported in the direction of the first rotation axis, thereby improving the stability of the lens component 35.

[0054] It is understood that this application does not limit the specific structure of the first swing arm 34 and the second swing arm 36; the second swing arm 36 may also be omitted, that is, the lens component 35 may be supported only by the first swing arm 34; the number of swing arms may also be increased to improve the support strength for the lens component 35.

[0055] In some embodiments of this application, the lens assembly 30 further includes a cover 37 connected to the support 31, the cover 37 covering the receiving groove 318, and the drive body 322 located between the cover 37 and the support 31. The cover 37 is used to protect the drive member 32 and also to prevent the drive member 32 from detaching from the support 31. The cover 37 may, but is not limited to, be fixedly connected to the support 31 by fasteners.

[0056] In some embodiments of this application, the worm gear 33 is located between the cover 37 and the bracket 31. The cover 37 is used to protect the worm gear 33 and also to reduce interference from other components other than the lens assembly 30 on the transmission between the worm gear 33 and the helical gear portion 341.

[0057] The lens component 35 includes at least one of a Fresnel lens, a reflector, a filter, a condenser lens, a diffuser lens, and a prism. By using one or more lenses in the lens component 35, the image light can be adjusted, supporting multiple scenarios, such as near-field welcome lighting, curved lighting, and side light carpets.

[0058] A Fresnel lens, also known as a threaded lens, has one smooth surface and the other side can include a wedge-shaped surface. Multiple wedge-shaped surfaces can be arranged in a ring structure or concentric circles. Fresnel lenses can be made from thin sheets of polyolefin material or glass. This application does not limit the material of the Fresnel lens. The image light emitted directly from the projection module 10 is deflected by the Fresnel lens from the first light-emitting path to the second light-emitting path. This application does not limit the deflection direction of the second light-emitting path relative to the first light-emitting path. The actual deflection angle can be determined based on the angle of the wedge-shaped surface of the Fresnel lens and / or other optical elements. For example, the deflection can be made in one of the directions of the first rotation axis: downward, left, or right. A downward deflection can achieve near-field welcoming effects, a left or right deflection can achieve a light carpet illumination effect, and an upward deflection can be used for projection into underground parking lots or outdoors, etc.

[0059] The lens component 35 may also include a frame for supporting and mounting the lens. The frame, the first swing arm 34, and the second swing arm 36 may be integrated or separate components.

[0060] A reflector can change the direction of a light beam emitted by an incident light source. For example, the lens assembly 30 may include two reflectors. The direction of the image light emitted by the projection module 10 can be changed by the two reflectors, thereby achieving the effect of deflecting the image light path and realizing the projection of an image near the front of the vehicle, thus achieving the effect of beam deflection.

[0061] A filter can be used for light filtering. A filter can remove unwanted spectral components or interfering light from the light incident on it. The color of the image light output by the projection module 10 can also be adjusted using a filter.

[0062] A condenser lens can focus light, thus enhancing the brightness of an image. A diffuser lens can be used to expand the illuminated area of ​​an image. A diffuser lens focuses and scatters incident light, causing the light to diffuse. The principle of a diffuser lens is mainly related to the microscopic morphology of its surface; the mirror surface of a diffuser has microstructures, including tiny irregular or regular concave-convex structures. A prism can be used to split image light.

[0063] A prism is a transparent object formed by two intersecting but non-parallel planes used to split light or cause light beams to disperse.

[0064] Referring to Figure 6, the projection module 10 includes a light source 11, a projection chip 12, and a projection lens 13. The light source 11 outputs light to the projection chip. The light source 11 can be an illumination source, for example, an illumination source for the vehicle 100. The light output by the light source 11 can be monochromatic light, or the light source 11 can output light of two or more colors. The projection chip 12 modulates the light input to the projection chip 12 and outputs image light to the projection lens 13. The projection lens 13 projects the image light. The lens assembly 30 adjusts the image light output from the projection lens 13. It is understood that this application does not limit the structure of the projection module 10.

[0065] The projection chip 12 can be a liquid crystal on silicon (LCoS) modulator, which is a reflective spatial light modulator that has the function of changing the polarization direction of incident linearly polarized light. Alternatively, the projection chip can be a reflective spatial light modulator that does not have the function of changing the polarization direction of incident linearly polarized light, such as a micro-electro-mechanical system (MEMS) or a digital micromirror device (DMD). Furthermore, the projection chip can also be a transmissive spatial light modulator, such as a liquid crystal display (LCD). In this embodiment, the projection chip is a DMD chip.

[0066] It should be noted that the image display system 1 described above can be mainly applied to vehicle 100. More specifically, it can be mainly applied to intelligent cockpit or vehicle lighting systems installed on vehicle 100, etc. The vehicle lighting and vehicle 100 provided in this application will be described in detail below.

[0067] Figure 7 is a functional schematic diagram of a vehicle 100 according to an embodiment of this application. As shown in Figure 7, the vehicle 100 may include various systems, each system including multiple components. For example, the illustrated components include a computer system 110, an advanced driving assistance system (ADAS) 120, a sensing system 130, a lighting and prompting system 140, a display system 150, one or more peripheral devices 160 (one is shown as an example), a control system 170, and a power supply 180. These subsystems can communicate with each other, including but not limited to wired and wireless communication. The vehicle 100 may also include other functional systems, such as an engine system that provides power to the vehicle 100, a cockpit, etc., which are not limited herein.

[0068] The vehicle shown in this embodiment includes a sensing system 130, which may include several detection devices. These detection devices can sense the measured information and convert the sensed information into electrical signals or other required forms of information output according to a certain rule. For example, the sensor system may include a positioning system, an inertial measurement unit (IMU), radar, a laser rangefinder, a camera, etc. The sensor system may also include sensors from the internal systems of the vehicle 100 (e.g., in-vehicle air quality monitor, fuel gauge, oil temperature gauge, etc.). Sensor data from one or more of these sensors can be used to detect objects and their corresponding characteristics (position, shape, orientation, speed, etc.). This detection and identification is a key function for the safe operation of the vehicle 100.

[0069] Specifically, the positioning system can be a Global Positioning System (GPS), a BeiDou system, or another positioning system, which can be used to estimate the geographical location of the vehicle 100. An Inertial Measurement Unit (IMU) is used to sense changes in the position and orientation of the vehicle 100 based on inertial acceleration. In one embodiment, the IMU can be a combination of an accelerometer and a gyroscope. Radar can use radio signals or ultrasound to sense objects in the surrounding environment of the vehicle 100. This embodiment does not limit the specific type of radar; for example, the radar can be millimeter-wave radar or lidar. A laser rangefinder can use laser light to sense objects in the environment in which the vehicle 100 is located. In some embodiments, the laser rangefinder may include one or more laser sources, a laser scanner, one or more detectors, and other system components. A camera device can be used to capture images of the surrounding environment of the vehicle 100, and can be a still camera, a video camera, a monocular / binocular camera, or an infrared imager, etc.

[0070] The lighting prompting system 140 includes various devices that serve a lighting prompting function. Taking a vehicle 100 as an example (e.g., a car), these include, but are not limited to, headlights, taillights, and turn signals. The headlights include high beams, low beams, and intelligent headlights. Specifically, the car's intelligent headlights can implement an Adaptive Driving Beam (ADB) system to avoid dazzling oncoming drivers or pedestrians. They can also project text, traffic signs, or other complex graphics, as well as videos, and are widely used in driver assistance and entertainment scenarios. It should be understood that the aforementioned lighting prompting system 140 can also be referred to as a "vehicle lighting system," as shown in Figure 8. The vehicle lighting system can include the vehicle's headlights 101. Taking the image display system 1 as an example (see Figure 9), the vehicle lighting system includes a lamp housing 201 and a vehicle lamp, with the vehicle lamp housed within the lamp housing 201. The vehicle lamp can be an intelligent headlight, and the high beams and low beams can be housed within the lamp housing 201. The vehicle-mounted light includes a projection module 10 and a lens assembly 30. The projection module 10 is used to output image light.

[0071] Please refer to Figure 7 again. The display system 150 can display image information, such as navigation information and play videos. The display system 150 includes an instrument panel, a monitor, a head-up display (HUD), etc., which are not limited in this application.

[0072] Peripheral device 160 may include several components, such as a communication system, a touch screen, a user interface, a microphone, and a speaker. The communication system is used to enable network communication between the vehicle 100 and other devices. In practical applications, the communication system can employ wireless or wired communication technologies to achieve network communication between the vehicle 100 and other devices. The wired communication technology can refer to communication between the vehicle and other devices via network cables or fiber optics. The wireless communication technology can refer to infrared technology, Bluetooth, ZigBee, wireless local area network (WLAN), etc., or it can refer to third-generation mobile communication technology (3G), fourth-generation mobile communication technology (4G), fifth-generation mobile communication technology (5G), and future next-generation or even next-next-generation mobile communication technologies; this application does not limit the scope of the application.

[0073] The control system 170 may include several components, such as a steering unit, a braking unit, an automatic driving system, a map navigation system, a network time synchronization system, and an obstacle avoidance system. The control system 170 can receive information (such as vehicle speed, distance, etc.) sent by the sensor system 130 to realize functions such as automatic driving and map navigation.

[0074] Optionally, the control system 170 may also include components such as a throttle controller and an engine controller for controlling the vehicle's speed, which is not limited in this application.

[0075] Power source 180 represents a system that provides electricity or energy to a vehicle, which may include, but is not limited to, rechargeable lithium batteries or lead-acid batteries. In practical applications, one or more battery components in power source 180 are used to provide electrical energy or power for starting the vehicle, and the type and materials of power source 180 are not limited in this application.

[0076] Several functions of the vehicle 100 can be controlled and implemented by the computer system 110. The computer system 110 may include one or more processors 111 (the figure shows one processor 111 as an example) and a memory 112 (also referred to as a storage device). In practical applications, the memory 112 may be inside or outside the computer system 110, for example, as a cache in the vehicle 100, etc., and this application does not limit it.

[0077] The processor 111 may be one or more graphics processing units (GPUs), field programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system-on-chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic devices (PLDs), or other integrated chips, or any combination of the above chips or processors 111.

[0078] The memory 112 may include volatile memory, such as RAM; the memory 112 may also include non-volatile memory, such as ROM, flash memory, HDD, or SSD; the memory 112 may also include combinations of the above types of memory 112. The memory 112 can be used to store a set of program code or instructions corresponding to the program code, so that the processor 111 can call the program code or instructions stored in the memory 112 to implement the corresponding functions of the vehicle. In this application, the memory 112 may store a set of program code for controlling the vehicle 100. The processor 111 can call the program code to control the safe operation of the vehicle 100. How to achieve the safe operation of the vehicle 100 is described in detail below in this application.

[0079] In some vehicles 100, such as cars with certain autonomous driving functions, an Advanced Driving Assistance System (ADAS) is also included. ADAS continuously senses the surrounding environment during vehicle operation, collects data, identifies static and dynamic objects, and combines this data with navigation map data to perform system calculations and analyses. This allows the driver to anticipate potential dangers, effectively increasing driving comfort and safety. For example, ADAS can control the vehicle using data acquired by the sensor system 130 to avoid driving hazards. Alternatively, ADAS can control the vehicle using in-vehicle data, which may include key data from the vehicle's instrument panel (fuel consumption, engine speed, temperature, etc.), vehicle speed information, steering wheel angle information, or vehicle posture data. Specifically, ADAS control of the vehicle includes, but is not limited to, adjusting the vehicle's direction of travel, controlling the vehicle's speed, and automatic parking.

[0080] In one possible implementation, the sensing system 130 detects signals emitted by authorized user equipment in the vehicle and sends the detected information to the computer system 110. The computer system 110 analyzes and processes the detected information to generate control signals, which can then be transmitted via bus to ADAS, image display system 1, display system 150, peripheral devices 160, and control system 170, etc. As an example, the computer system 110 detects that the user equipment meets trigger conditions and activates the lighting warning system 140. Furthermore, the computer system 110 can also generate corresponding control signals based on real-time status changes of the user equipment, and the lighting warning system 140 adjusts the illumination effect of the vehicle lights according to these control signals.

[0081] The subsystems illustrated in this embodiment are merely examples and do not constitute a limitation. In practical applications, the vehicle 100 can combine several components according to different functions to obtain subsystems with corresponding functions. In practical applications, the vehicle 100 may include more or fewer subsystems or components, and this application does not impose any limitations.

[0082] The vehicle 100 in this application embodiment can be a known vehicle 100 such as a car, airplane, ship, or rocket, or it can be a newly emerging vehicle 100 in the future. The car can be an electric car, a gasoline car, or a hybrid car, such as a pure electric car, a range-extended electric car, a hybrid electric car, a fuel cell car, or a new energy car, etc., and this application does not make specific limitations in this regard.

[0083] In some embodiments, the image display system 1 may be other devices applied to the vehicle 100, such as a projection device applied to the cabin of the vehicle 100, which includes at least one of the image display system 1 and vehicle lights.

[0084] It should be understood that expressions such as “comprising” and “may include” used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as “comprising” and / or “having” are to be interpreted as indicating a particular characteristic, number, operation, constituent element, component, or combination thereof, but not to exclude the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0085] Furthermore, in this application, the expression "and / or" includes any and all combinations of the associated listed words. For example, the expression "A and / or B" may include A, may include B, or may include both A and B.

[0086] In this application, expressions including ordinal numbers such as "first" and "second" may modify the elements. However, such elements are not limited by the foregoing expressions. For example, the foregoing expressions do not limit the order and / or importance of the elements. The foregoing expressions are only used to distinguish one element from other elements. For example, "first user equipment" and "second user equipment" refer to different user equipment, although both "first user equipment" and "second user equipment" are user equipment. Similarly, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0087] When a component is referred to as "connected" or "accessed" to other components, it should be understood that this component not only connects directly to or accesses other components, but also that another component may exist between this component and other components. On the other hand, when a component is referred to as "directly connected" or "directly accessed" to other components, it should be understood that no component exists between them.

[0088] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lens assembly (30), characterized in that, The lens assembly (30) includes a bracket (31), a drive unit (32), a worm gear (33), a first swing arm (34), and a lens component (35); The worm gear (33) is connected to the driving member (32), and the driving member (32) is used to drive the worm gear (33) to rotate; The first swing arm (34) is rotatably connected to the bracket (31). The first swing arm (34) is provided with a helical gear (341), which is used to mesh with the worm gear (33) so that the first swing arm (34) rotates relative to the bracket (31). The lens component (35) is mounted on the first swing arm (34). The lens component (35) can rotate with the first swing arm (34) to be located on the output light path of the image light output by the projection module (10) and to adjust the image light, or to be moved away from the output light path.

2. The lens assembly (30) according to claim 1, characterized in that, In the length extension direction of the first swing arm (34), the helical gear portion (341) includes a plurality of helical teeth (3411), the plurality of helical teeth (3411) are arranged along the periphery of the first end of the first swing arm (34), and the lens component (35) is located at the second end of the first swing arm (34).

3. The lens assembly (30) according to claim 1, characterized in that, The bracket (31) is provided with a light-transmitting hole (316), and the first swing arm (34) rotates relative to the bracket (31) around a first rotation axis. In the direction of the first rotation axis, the driving member (32) and the worm gear (33) are both located outside the light-transmitting hole (316) and on the same side of the bracket (31).

4. The lens assembly (30) according to claim 3, characterized in that, The bracket (31) includes a mounting part (312) and a support part (314) protruding from one side of the mounting part (312). The mounting part (312) and the support part (314) together form the light-transmitting hole (316). In the direction of the first rotation axis, the width of the mounting part (312) is greater than the width of the support part (314). The driving member (32) and the worm gear (33) are located in the receiving space formed by the support part (314) and the mounting part (312).

5. The lens assembly (30) according to claim 3, characterized in that, The lens assembly (30) further includes a second swing arm (36) rotatably connected to the bracket (31), and the lens component (35) is connected between the first swing arm (34) and the second swing arm (36). In the direction of the first rotation axis, the light-transmitting hole (316) is located between a portion of the second swing arm (36) and a portion of the first swing arm (34).

6. The lens assembly (30) according to claim 1, characterized in that, The bracket (31) is provided with a receiving groove (318). The driving component (32) includes a driving body (322) and a driving shaft (324). At least part of the driving body (322) is received in the receiving groove (318). The driving shaft (324) is connected to the driving body (322) and extends out of the receiving groove (318). The driving shaft (324) is connected to the worm gear (33) and is used to drive the worm gear (33) to rotate.

7. The lens assembly (30) according to claim 6, characterized in that, The lens assembly (30) also includes a cover (37) connected to the bracket (31), the cover (37) covering the receiving groove (318), and the drive body (322) located between the cover (37) and the bracket (31).

8. The lens assembly (30) according to claim 7, characterized in that, The worm gear (33) is located between the cover (37) and the bracket (31).

9. The lens assembly (30) according to claim 1, characterized in that, The lens component (35) includes at least one of a Fresnel lens, a mirror, a filter, a condenser, a diffuser, and a prism.

10. An image display system (1), characterized in that, Includes a projection module (10) and a lens assembly (30) according to any one of claims 1-9, wherein the projection module (10) is used to output image light.

11. A vehicle-mounted light, characterized in that, The vehicle-mounted light includes a projection module (10) and a lens assembly (30) according to any one of claims 1-9, wherein the projection module (10) is used to output image light.

12. The vehicle-mounted light according to claim 11, characterized in that, The projection module (10) includes a light source (11), a projection chip (12), and a projection lens (13). The light source (11) is used to output light to the projection chip (12). The projection chip (12) is used to modulate the light input to the projection chip (12) and output image light to the projection lens (13). The projection lens (13) is used to project the image light. The lens component (35) can be located in the light output path of the image light output by the projection lens (13), or can be moved away from the light output path.

13. A vehicle lighting system, characterized in that, Includes a lamp housing (201) and a vehicle lamp according to claim 11 or 12, the vehicle lamp being housed within the lamp housing (201).

14. A means of transport (100), characterized in that, The vehicle (100) includes at least one of the image display system (1) according to claim 10 and the vehicle-mounted lights according to claim 11.

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