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Title:
VEHICLE LIGHTS WITH MULTIPLE FUNCTIONS
Document Type and Number:
WIPO Patent Application WO/2024/044424
Kind Code:
A1
Abstract:
An exterior light may produce illumination using multiple light sources. In particular, the exterior light may include a pixelated light source (26) that provides high-beam and low-beam illumination through a group of lenses (34, 36), a cornering light source (44) that provides high-angle illumination through the group of lenses (34, 36), a pre-field light source (28) that provides additional illumination to supplement the low-beam illumination, a daytime running light source (30), and a turning indicator light source (30). All of the light sources in the exterior light emit light through a single cover lens (42), which forms a single aperture.

Inventors:
TANG XIAOFENG (US)
CHILD CHRISTOPHER (US)
Application Number:
PCT/US2023/070434
Publication Date:
February 29, 2024
Filing Date:
July 18, 2023
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
APPLE INC (US)
International Classes:
F21S41/255; B60Q1/00
Domestic Patent References:
WO2012156121A12012-11-22
WO2019207147A12019-10-31
Foreign References:
EP3486555A12019-05-22
DE102008036193A12010-02-04
EP3205928A12017-08-16
US11204147B12021-12-21
US20180306398A12018-10-25
DE102020116224A12020-12-24
DE102021100197A12022-07-14
JP2022028514A2022-02-16
US203562634010P
Attorney, Agent or Firm:
TREYZ, George, Victor (US)
Download PDF:
Claims:
Claims

What is Claimed is:

1. A headlight for a vehicle, comprising: a cover lens; a lens group comprising a first lens and a second lens; a cornering light source configured to emit light through the first lens, the second lens, and the cover lens; a pixelated light source configured to emit light through the first lens, the second lens, and the cover lens; a pre-field light source configured to emit light through the first lens and the cover lens; and a daytime running light source configured to emit light through the cover lens.

2. The headlight of claim 1 , further comprising: a first reflector, wherein the cornering light source is configured to emit light toward the first reflector that is reflected from the first reflector through the first lens, the second lens, and the cover lens.

3. The headlight of claim 2, further comprising: a second reflector, wherein the light that is reflected from the first reflector is reflected from the second reflector after passing through the first lens and the second lens.

4. The headlight of claim 1 , wherein the pixelated light source comprises an array of light-emitting diode pixels.

5. The headlight of claim 4, wherein the pixelated light source is configured to operate as a high-beam light source using pixels in a bottom portion of the array of light-emitting diode pixels.

6. The headlight of claim 5, wherein the pixelated light source is configured to operate as a low-beam light source using pixels in an upper portion of the array of light-emitting diode pixels.

7. The headlight of claim 6, wherein the pre-field light source is configured to emit light while the pixelated light source is operated as the low-beam light source.

8. The headlight of claim 1 , wherein the pre-field light source is one of a plurality of pre-field light sources that surround the pixelated light source, and wherein the daytime running light source surrounds the pre-field light source.

9. The headlight of claim 1 , further comprising a turn signal light source adjacent to the daytime running light source, wherein the turn signal light source and the daytime running light source are configured to emit light that passes only through the cover lens.

10. The headlight of claim 1, wherein the lens group is a fisheye lens group, and the first lens comprises a meniscus lens portion and a planar portion that surrounds the meniscus lens portion.

11. The headlight of claim 10, wherein the second lens comprises a convex lens.

12. A vehicle, comprising: a body; a cover lens formed in a single aperture in the body; and a headlight comprising a pixelated light source, a cornering light source, a turn indicator light source, and a daytime running light source are configured to emit light through the cover lens.

13. The vehicle of claim 12, wherein the pixelated light source comprises an array of pixels, lower pixels of the array of pixels are configured to emit a high beam, and upper pixels of the array of pixels are configured to emit a low beam.

14. The vehicle of claim 13, wherein the headlight further comprises a prefield light source that is configured to emit light through the cover lens while the upper pixels emit the low beam.

15. The vehicle of claim 13, further comprising: sensors in the body that sense an operating state, wherein the array of pixels is configured to emit the high beam or the low beam based on the operating state.

16. The vehicle of claim 15, wherein the operating state is selected from the group consisting of: operating on an incline, operating on a decline, operating terrain, and operating location.

17. The vehicle of claim 15, wherein the cornering light source is configured to change an angle of light emitted through the aperture based on the operating state.

18. The vehicle of claim 17, wherein the operating state is a direction and degree of a turn.

19. A vehicle, comprising: a body; a cover lens formed in an aperture of the body; and a headlight operable through the cover lens, wherein the headlight comprises: a lens group comprising a first lens and a second lens; a cornering light source configured to emit light through the first lens, the second lens, and the cover lens; a pixelated light source configured to emit light through the first lens, the second lens, and the cover lens; a pre-field light source configured to emit light through the first lens and the cover lens; a daytime running light source configured to emit light through the cover lens; and a turn indicator light source configured to emit light through the cover lens.

20. The vehicle of claim 19, wherein the pixelated light source comprises an array of pixels, lower pixels of the array of pixels are configured to emit a high beam, and upper pixels of the array of pixels are configured to emit a low beam.

Description:
VEHICLE LIGHTS WITH MULTIPLE FUNCTIONS

This application claims the benefit of U.S. provisional patent application No. 63/401,035, filed August 25, 2022, which is hereby incorporated by reference herein in its entirety.

Field

[0001] This relates generally to systems, and, more particularly, systems that have lights.

Background

[0002] Systems, such as buildings or vehicles, may have exterior lights. These lights may be provided with sources of illumination such as light-emitting diodes or lamps.

Summary

[0003] A system, such as a vehicle, may have lights such as headlights to produce headlight illumination. The headlights may include a pixelated light source that provides high-beam and low-beam illumination through a group of lenses, a cornering light source that provides high-angle illumination through the group of lenses, a pre-field light source that provides additional illumination to supplement the low-beam illumination, a daytime running light source, and a turning indicator light source.

[0004] In particular, the pixelated light source may include an array of light sources, such as an array of light-emitting diodes (LEDs). The pixelated light source may be adjusted between emitting high-beam illumination and low-beam illumination by emitting light with a lower portion of the array of light sources and an upper portion of the array of light sources, respectively. The pre-field light source may emit additional light when the pixelated light source emits low-beam illumination to provide sufficient illumination of a surface in front of the vehicle, such as the road, when in low-beam mode.

[0005] The cornering light source may emit light toward a first reflector, and the light may reflect through the lenses to a second reflector that both reflects and disperses the light through the cover lens. By reflecting the light using the first and second reflectors, light may be emitted at high angles relative to a normal axis of the headlight.

[0006] The daytime running light source and turning indicator light source may be provided in a ring (or other shape) around the other light sources, and may be activated based on the amount of ambient light (or the time of day) and the intent of the vehicle (or driver) to turn, respectively.

[0007] All of the light sources in the headlight may emit light through a single cover lens, which may form a single aperture in an opening in the body of the vehicle. Control circuitry in the vehicle may adjust the headlight between operating in a high-beam mode, low-beam mode, cornering mode, daytime running light mode, and turn indicator mode based on information from sensors in the vehicle or other criteria.

Brief Description of the Drawings

[0008] FIG. 1 is a top view of an illustrative vehicle with headlights in accordance with some embodiments.

[0009] FIG. 2 is a front view of an illustrative headlight in accordance with some embodiments.

[0010] FIG. 3 is a side view of a portion of an illustrative headlight in accordance with some embodiments.

[0011] FIG. 4 is a side view of a portion of an illustrative headlight providing cornering illumination in accordance with some embodiments.

[0012] FIG. 5 is a side view of a portion of an illustrative headlight providing high-beam illumination in accordance with some embodiments.

[0013] FIG. 6 is a side view of a portion of an illustrative headlight providing low-beam illumination in accordance with some embodiments.

[0014] FIG. 7 is a front view of an illustrative pixelated light source used for high and low- beam illumination in accordance with some embodiments.

[0015] FIG. 8 is a side view of a portion of an illustrative headlight providing running light or turn illumination in accordance with some embodiments.

Detailed Description

[0016] A system such as a vehicle or other system may have components that emit light such as headlights, taillights, and other lights. Headlights may be used to provide headlight illumination to illuminate a roadway. The headlight illumination may allow vehicle occupants to view the roadway at night and in other low ambient lighting conditions such as at dawn or dusk, when weather reduces ambient light, or when a vehicle is traveling through a dark tunnel. Headlight illumination may also be used to assist autonomous driving systems. [0017] In an illustrative arrangement, a headlight may be operated in high-beam, low-beam, cornering, daytime running light, and turn signal modes. The headlight may include an array of pixels that are used to form the high beam and low beam, a cornering light source and reflector that emits light at an angle, a pre-field light source that emits light in low-beam mode to provide an acceptably wide low-beam field of lighting, daytime running lights, and turn indicator lights. All of these light sources may operate through a single aperture, and at least some of the light sources may emit light through a lens system. The headlight may be coupled to a vehicle controller, and the vehicle controller may change the operating mode of the headlight based on the location of the vehicle, whether the vehicle is traveling uphill or downhill, the terrain on which the vehicle is moving, or other desired criteria.

[0018] In general, a headlight may be included in any desired vehicle (or other system). FIG. 1 is a top view of a portion of an illustrative vehicle in which a headlight may be included. In the example of FIG. 1, vehicle 10 is the type of vehicle that may carry passengers (e.g., an automobile, truck, or other automotive vehicle). Configurations in which vehicle 10 is a robot (e.g., an autonomous robot) or other vehicle that does not carry human passengers may also be used. Vehicles such as automobiles may sometimes be described herein as an example. As shown in FIG. 1, vehicle 10 may be operated on roads such as roadway 14.

[0019] Vehicle 10 may be manually driven (e.g., by a human driver), may be operated via remote control, and/or may be autonomously operated (e.g., by an autonomous driving system or other autonomous propulsion system). Using vehicle sensors such as lidar, radar, visible and/or infrared cameras (e.g., two-dimensional and/or three-dimensional cameras), proximity (distance) sensors, and/or other sensors, an autonomous driving system and/or driver-assistance system in vehicle 10 may perform automatic braking, steering, and/or other operations to help avoid undesired collisions with pedestrians, inanimate objects, and/or other external structures such as illustrative obstacle 26 on roadway 14.

[0020] Vehicle 10 may include a body such as body 18. Body 18 may include vehicle structures such as body panels formed from metal and/or other materials, may include doors, a hood, a trunk, fenders, a chassis to which wheels are mounted, a roof, etc. Windows may be formed in the doors (e.g., on the sides of vehicle body 18, on the roof of vehicle 10, and/or in other portions of vehicle 10). Windows, doors, and other portions of body 18 may separate the interior of vehicle 10 from the exterior environment that is surrounding vehicle 10. Doors may be opened and closed to allow people to enter and exit vehicle 10. Seats and other structures may be formed in the interior of vehicle body 18.

[0021] Vehicle 10 may have automotive lighting such as one or more headlights (sometimes referred to as headlamps), driving lights, fog lights, daytime running lights, turn signals, brake lights, and/or other lights. As shown in FIG. 1, for example, vehicle 10 may have lights such as lights 16. In general, lights 16 may be mounted on front F of vehicle 10, on rear R of vehicle 10 (e.g., at locations 17), on left and/or right sides S of vehicle 10, and/or other portions of body 18. In an illustrative configuration, which may sometimes be described herein as an example, lights 16 are headlights and are mounted to front F of body 12. There may be, as an example, left and right headlights 16 located respectively on the left and right of vehicle 10 to provide headlight illumination 20 in the forward direction (e.g., in the +Y direction in which vehicle 10 moves when driven forward in the example of FIG. 1). Vehicle 10 may have any suitable number of headlights 16 (e.g., at least one, at least two, fewer than three, etc.). Headlight 16 may be mounted in an opening in body 18 or may otherwise be coupled to a supporting portion of body 18. By shining headlights 16 on roadway 14 in front of vehicle 10, vehicle 10 may illuminate roadway 14 and obstacles on roadway 14 such as obstacle 26.

[0022] Vehicle 10 may have components 24. Components 24 may include propulsion and steering systems (e.g., manually adjustable driving systems and/or autonomous driving systems having wheels coupled to body 18, steering controls, one or more motors for driving the wheels, etc.), and other vehicle systems. Components 24 may include control circuitry (also referred to as a vehicle controller herein) and input-output devices. Control circuitry in components 24 may be configured to run an autonomous driving application, a navigation application (e.g., an application for displaying maps on a display), and software for controlling vehicle climate control devices, headlights, interior lighting, media playback, window movement, door operations, sensor operations, and/or other vehicle operations. For example, the control system may form part of an autonomous driving system that drives vehicle 10 on roadways such as roadway 14 autonomously using data such as sensor data. The control circuitry may include processing circuitry and storage and may be configured to perform operations in vehicle 10 using hardware (e.g., dedicated hardware or circuitry), firmware and/or software. Software code for performing operations in vehicle 10 and other data is stored on non-transitory computer readable storage media (e.g., tangible computer readable storage media) in the control circuitry. The software code may sometimes be referred to as software, data, program instructions, computer instructions, instructions, or code. The non-transitory computer readable storage media may include non-volatile memory such as non-volatile random-access memory, one or more hard drives (e.g., magnetic drives or solid state drives), one or more removable flash drives or other removable media, or other storage. Software stored on the non-transitory computer readable storage media may be executed on the processing circuitry of components 24. The processing circuitry may include application-specific integrated circuits with processing circuitry, one or more microprocessors, a central processing unit (CPU) or other processing circuitry.

[0023] The input-output devices of components 24 may include displays, sensors, buttons, light-emitting diodes and other light-emitting devices, haptic devices, speakers, and/or other devices for gathering environmental measurements, information on vehicle operations, and/or user input and for providing output. The sensors in components 24 may include ambient light sensors, touch sensors, force sensors, proximity sensors, optical sensors such as cameras operating at visible, infrared, and/or ultraviolet wavelengths (e.g., fisheye cameras, two- dimensional cameras, three-dimensional cameras, and/or other cameras), capacitive sensors, resistive sensors, ultrasonic sensors (e.g., ultrasonic distance sensors), microphones, radiofrequency sensors such as radar sensors, lidar (light detection and ranging) sensors, door open/close sensors, seat pressure sensors and other vehicle occupant sensors, window sensors, position sensors for monitoring location, orientation, and movement, speedometers, satellite positioning system sensors, and/or other sensors. Output devices in components 24 may be used to provide vehicle occupants and others with haptic output, audio output, visual output (e.g., displayed content, light, etc.), and/or other suitable output.

[0024] During operation, the control circuitry of components 24 may gather information from sensors and/or other input-output devices such as lidar data, camera data (images), radar data, and/or other sensor data. Cameras, touch sensors, physical controls, and other input devices may be used to gather user input. Using wireless communications with vehicle 10, remote data sources may provide the control circuitry of components 24 with database information. Displays, speakers, and other output devices may be used to provide users with content such as interactive on-screen menu options and audio. A user may interact with this interactive content by supplying touch input to a touch sensor in a display and/or by providing user input with other input devices. If desired, the control circuitry of vehicle 10 may use sensor data, user input, information from remote databases, and/or other information in providing a driver with driver assistance information (e.g., information on nearby obstacles on a roadway and/or other environment surrounding vehicle 10) and/or in autonomously driving vehicle 10.

[0025] Light from headlights 16 can distract drivers and others in oncoming traffic or other traffic around vehicle 10, so it may be desirable to provide headlights 16 with the ability to operate in a high-beam mode in which headlight illumination from headlights 16 is provided over a relatively large area (e.g., a high-beam pattern that encompasses both objects that are far in front of vehicle 10 and objects that are closer to vehicle 10) and in a low-beam mode in which illumination is provided over a reduced area (e.g., a low-beam pattern that is directed downward towards roadway 14 directly in front of vehicle 10). When a driver or vehicle system in vehicle 10 detects oncoming traffic or vehicles that are traveling in the same direction but are in front of vehicle 10, the headlights may be placed in the low-beam mode to avoid directing excessive light towards the traffic. When no oncoming traffic is present, the headlights may be adjusted to operate in the high-beam mode to increase the area over which illumination is provided.

[0026] In addition to operating in high-beam and low-beam modes, it may be desirable for headlights 16 to operate in a cornering mode, in which light is emitted at an angle when vehicle 10 is turning around a comer, in a daytime running light mode, and in a turn indicator mode, in which headlight 16 indicates that the vehicle is planning to turn. A front view of an illustrative headlight that may operate in high-beam mode, low-beam mode, cornering mode, daytime running light mode, and turn mode is shown in FIG. 2.

[0027] FIG. 2 is a front view of an illustrative adjustable headlight 16 for vehicle 10. As shown in FIG. 2, headlight 16 may be ring shaped and include pixelated high-beam and low- beam portion 26 in the center of headlight 16. Pre-field optics portion 28 may surround beam portion 26, and daytime running light and turn portion 30 may surround pre-field optics portion 28.

[0028] In operation, circuitry within vehicle 10, such as control circuitry of components 24, may switch headlight 16 between a high-beam or low-beam mode in which light is emitted through beam portion 26 (along with pre-field optics portion 28 in the low-beam mode), a cornering mode in which light is emitted at an angle out of beam portion 26 (i.e., an angle relative to a normal axis of headlight 16), a daytime running light mode in which light is emitted out of portion 30, and a turn mode in which light is emitted out of portion 30. Although FIG. 2 shows portions 26, 28, and 30 as being separated, this is merely for illustrative purposes. Headlight 26 may emit light in all five modes out of a single aperture, such as aperture 31. Aperture 31 may be formed on a surface of vehicle 10, such as on front F, and may be in an opening of the vehicle body or otherwise mounted to the vehicle body. Aperture 31 may be filled with a cover, such as a cover lens, if desired.

[0029] Although FIG. 2 shows headlight 16 as having a circular shape, this is merely illustrative. In general, headlight 16 may have any desired shape, such as a circular ring shape, a rectangular ring shape, a rectangular ring shape with rounded comers, a straight line, a solid circle, a solid rectangle, or another ring shape or solid shape. Regardless of the shape of the headlight, a side view of an illustrative multi-function headlight, such as headlight 16, that emits light out of a single aperture is shown in FIG. 3.

[0030] As shown in FIG. 3, headlight 16 may include pixelated light source 27 (also referred to as beam light source 27 herein). Pixelated light source 27 may include any desired number of individual pixels 32, such as at least 100 pixels 32, at least 1000 pixels 32, at least 100,000 pixels 32, or other desired number of pixels 32. Each pixel 32 may be an individual light source, such as an individual light-emitting diode (LED), or may include an individual shutter over a shared light source. In general, pixelated light source 27 may be operated in a high-beam mode or a low-beam mode, and may emit light that forms beam portion 26 of FIG. 2. In the high-beam mode, some of pixels 32, such as the bottom portion of the array of pixels 32, may emit light, while other pixels 32, such as the top portion of the array of pixels 32, may emit light in the low-beam mode.

[0031] Pixelated light source 27 may emit light through convex lens 34 and meniscus lens 36. Together lenses 34 and 36 may form a fisheye lens group through which pixelated light source 27 emits light. In this way, the fisheye lens group may act as a projector for the light sources in headlight 16. Lens elements (lenses) 34 and 36 may be formed from any suitable transparent material, such as glass or polymer. Although FIG. 3 shows two lenses forming the fisheye lens group, this is merely illustrative. In general, any desired number of lenses may be included in the fisheye lens group, such as two lenses, at least three lenses, at least four lenses, or other desired number of lenses. [0032] When pixelated light source 27 is operated in the low-beam mode, pre-field light sources 29 may also emit light. In particular, because a top portion of the array of pixels 32 is used to emit light in the low-beam mode, there may not be enough light to cover a desired field of lighting in front of vehicle 10. Therefore, pre-field light sources 29 may emit light out of pre-field optics portion 28 of FIG. 2. Pre-field light sources may be a ring of light sources, such as a ring of light-emitting diodes (LEDs) that surround convex lens 34.

[0033] As shown in FIG. 3, pre-field light sources 29 may emit light through planar portions 38 of lens 36. In particular, planar portions 38 may allow light from pre-field light sources 29 to pass through without any distortion. In this way, pre-field light sources 29 may supplement light from beam light source 27 when it is operated in a low-beam mode.

[0034] Although FIG. 3 shows pre-field light sources 29 overlapped by planar portions 38 of lens 36, this is merely illustrative. If desired, lens 36 may not extend over pre-field light sources 29, or pre-field light sources 29 may operate through a curved portion of lens 36. [0035] Headlight 16 may also include daytime running light sources and turn light sources 33. For example, light sources 33 may include light sources, such as a plurality of LEDs, light pipes (pipes into which light is emitted and output in a desired shape, such as a ring shape), or light blades (individual portions of light pipes that together from a desired shape, such as a ring shape) of a first color and a second color. The light sources of the first color, such as amber LEDs, may operate as turn indicators, while the light sources of the second color, such as white LEDs, may operate as daytime running lights. Light sources 33 may be adjacent to lens 36 and may emit light through portion 30 of FIG. 2 without passing through lenses 34 or 36 (i.e., light from light sources 33 may not be redirected by lenses 34 or 36).

[0036] Headlight 16 may also include cornering light 44. Cornering light 44 may include a single light source (e.g., an LED), as shown in FIG. 3, or may include multiple light sources. Cornering light 44 may emit light toward reflector 46, which may be a mirror or other reflective surface. Reflector 46 may reflect light at an angle through lenses 34 and 36 and onto reflector 40. Reflector 40 may be a cylindrical reflector, or other desired type of reflector, that reflects and spreads the light after it has passed through lens 36. The light emitted by cornering light source 44 may then be emitted through the central portion of headlight 16 (i.e., portion 26 of FIG. 2) at a high angle (e.g., a high angle from a normal axis of headlight 16) to allow the light to follow a turn toward which vehicle 10 is moving or planning to move. For example, cornering light source 44 may emit light up to 90° (or other desired angle, such as up to 85°, up to 80°, etc.) from an axis normal to headlight 16 (i.e., normal to an upper surface of cover lens 42). In this way, light from cornering light source 44 may illuminate a turn in the road before, or while, vehicle 10 turns.

[0037] All of the light sources in headlight 16 may emit light through cover lens 42, which may be formed in a single aperture in vehicle body 18, as shown in FIG. 3, or otherwise coupled to a portion of vehicle body 18. In this way, headlight 16 may operate as a high- beam light, low-beam light, daytime running light, turn indicator, and cornering light through a single aperture (cover lens 42).

[0038] An illustrative diagram of light emitted by a cornering light source in headlight 16 is shown in FIG. 4. As shown in FIG. 4, light emitted by cornering light source 44, which may be an LED or other desired light source, may emit light 48 toward reflector 46. Reflector 46 may reflect the light as light 50, which may be refracted within lens 34 as light 52, output from lens 34 as light 54, refracted within lens 36 as light 56, and output from lens 36 as light 58. Light 58 may reflect and spread from reflector 40 as light 60, which may pass out of vehicle 10 through cover lens 42. In particular, because reflector 40 may be both reflective and diffusive, such as a cylindrical reflector, for example, light 60 may be spread from a single beam of light (light 58) into a wide beam of light (light 60). Light 60 may have a high angle relative to a normal axis of cover lens 42, such as up to 90°, up to 85°, or up to 80°. Light 60 may light the road on which vehicle 10 is traveling, such as around a turn that vehicle 10 is approaching or intends to turn.

[0039] Although only a single cornering light source 44 is shown in FIG. 4, this is merely illustrative. If desired, one or more additional cornering light sources, such as a light source on the left side of pixelated light source 26 in FIG. 4, may emit light at a high angle through cover lens 42.

[0040] Control circuitry in vehicle 10, such as control circuitry in components 24, may adjust headlight 16 to operate in a cornering mode. For example, if sensors in vehicle 10, such as lidar sensors, infrared cameras, radar sensors, position sensors (such as GPS sensors) or other sensors, detect that vehicle 10 is about to turn, the control circuitry may activate cornering light source 44 to illuminate an area of the road around the turn.

[0041] Additionally, the control circuitry may adjust an angle of light (light 60) emitted through cover lens 42, if desired. For example, the control circuitry may adjust the angle at which light source 44 emits light toward reflector 46, may adjust a position or angle of reflector 46, may adjust a position or angle of reflector 40, or may otherwise change the angle at which light 60 is emitted. In particular, the control circuitry may make an adjustment to the angle of light 60 based on the direction and degree of an upcoming turn to be made by vehicle 10. For example, light 60 may be adjusted to be output to the right at a 90° angle from a normal axis of cover lens 42 in response to determining that the vehicle is approaching a tight right turn, while light 60 may be adjusted to be output to the left at a lower angle (such as 60°) from a normal axis of cover lens 42 in response to determining that the vehicle is approaching a wide left turn. The direction and degree of the upcoming turn may be based on information from sensors in vehicle 10, such as lidar sensors, position sensors (e.g., GPS sensors), infrared cameras, or other desired sensors.

[0042] In addition to providing cornering lighting, headlight 16 may provide high-beam and low-beam illumination. An illustrative diagram of light emitted by a pixelated light source as a high beam is shown in FIG. 5. As shown in FIG. 5, pixelated light source 26 (i.e., some of pixels 32) may emit light 62, which may be redirected by lens 34 as light 64, which in turn may be redirected by lens 36 as light 66. Light 66 may be high-beam light that is emitted out of cover lens 42. High-beam light 66 may, for example, illuminate both objects that are far in front of vehicle 10 and objects that are closer to vehicle 10. In some cases, however, such as when there is an oncoming vehicle or pedestrian, or vehicle/pedestrian otherwise in front of vehicle 10, it may be undesirable to operate headlight 16 in a high-beam mode. For example, high-beam 66 may distract, temporarily blind, or otherwise interfere with others that are in front of vehicle 10. In these situations (or other situations), it may be desirable to operate headlight 16 in a low-beam mode. An illustrative diagram of light emitted by the pixelated light source as a low beam is shown in FIG. 6.

[0043] As shown in FIG. 6, pixelated light source 26 (i.e., some of pixels 32), may emit light 68, which may be redirected by lens 34 as light 70, which in turn may be redirected by lens 36 as light 72. Light 72 may be low-beam light that is emitted out of cover lens 42. Low-beam light 72 may be, for example, directed downward towards a roadway directly in front of vehicle 10. By operating headlight 16 in a low-beam mode, headlight 16 may be prevented from distracting oncoming drivers or pedestrians or drives/pedestrians otherwise in front of vehicle 10 (e.g., drivers or pedestrians traveling the same direction in front of vehicle 10).

[0044] To operate pixelated light source 26 as a high-beam or a low-beam, different portions of pixel array 32 may be used. An illustrative example of pixelated light source 26 is shown in FIG. 7.

[0045] As shown in FIG. 7, pixelated light source 26 may include pixels 32 that extend across an array of pixels. The array of pixels may have upper portion 67 and lower portion 69. In general, upper portion 67 may include any number of upper pixels of the array, such as 50% of the upper pixels, between 25% and 50% of the upper pixels, less than 40% of the upper pixels, or other desired number of the upper pixels. Lower portion 69 may include the remaining pixels of the array of pixels.

[0046] To emit a high beam, lower portion 69 of the array of pixels may emit light. The light emitted by lower portion 69 may be emitted at a high intensity, if desired, and may be emitted from a top portion of portion 26 (FIG. 2) after the beam is refracted by lenses 34 and 36. To emit a low beam, upper portion 67 of the array of pixels may emit light. If desired, upper portion 67 may emit light with a lower intensity than when pixelated light source 26 is emitting the high beam (e.g., a lower voltage may be applied to the light sources). Moreover, the low beam may be emitted from a bottom portion of portion 26 (FIG. 2) after the low beam is refracted by lenses 34 and 36. In this way, different portions of the array of pixels 32 may be used to output a high beam or a low beam from pixelated light source 26.

[0047] Control circuitry in vehicle 10 (such as in components 24 of FIG. 1) may control whether pixelated light source 26 emits a high beam or a low beam. For example, if sensors in vehicle 10, such as lidar sensors, radar sensors, infrared cameras, or other sensors, detect oncoming traffic or other traffic with which the high beam may interfere, the control circuitry may switch pixelated light source 26 from emitting a high beam to emitting a low beam, to avoid distracting or temporarily blinding drivers in the oncoming traffic. Alternatively or additionally, the control circuitry may switch between emitting a high beam or a low beam with pixelated light source 26 based on a time of day, the terrain on which vehicle 10 is driving (e.g., if there are a lot of comers to be traversed), or the location of vehicle 10.

[0048] Because pixelated light source 26 emits the low beam using upper portion 67 of the array of pixels 32, it may be desirable to increase the amount of light emitted in low-beam mode toward the ground in front of vehicle 10. Therefore, as shown in FIG. 6, pre-field light sources 28 may emit light 74 while pixelated light source 26 is operated in low-beam mode. In particular, pre-field light sources 28 may be one or more light sources, such as one or more LEDs, one or more light guides, etc., that surround lens 34. Light 74 may pass through planar portions 38 of lens 36 to ensure that light 74 is undistorted by lens 36. Alternatively, lens 36 may not overlap pre-field light sources 28 (i.e., lens 36 may have a length that is less than the length between pre-field light sources 28), if desired. Light 74 may exit cover lens 42 with low-beam light 72 and may provide additional lighting as compared with low-beam light 72 alone. In this way, pre-field light sources 28 may provide additional light when pixelated light source 26 is operated in low-beam mode and may sufficiently illuminate a surface in front of vehicle 10 (such as a road) for a driver of vehicle 10.

[0049] In addition to operating in high-beam, low-beam, and cornering modes, headlight 16 may operate in daytime running light and turning indicator modes. An illustrative diagram of headlight 16 operating in these modes is shown in FIG. 8.

[0050] As shown in FIG. 8, light sources 30 may emit light 76 out of cover lens 42. Light sources 30 may include a daytime running light source and a turn indicator light source. For example, light sources 30 may include white/clear LEDs or a white/clear light pipe to provide daytime running light illumination may include amber LEDS or an amber light pipe to provide turn indicator illumination. In some embodiments, light source 30 may include a singular, ring-shaped light guide/pipe, or a series of individual light guides/pipes that together form a combined desired shape (e.g., a circular ring shape), through which different colored LEDs emit light for daytime running light or turn indicator light functionality. Light source 30 may form a ring or otherwise fully or partially surround lens 36, and emit light directly out of cover lens 42 without being redirected by lenses 34 or 36.

[0051] Control circuitry in vehicle 10, such as control circuitry in components 24, may adjust headlight 16 to operate in a daytime running light and/or turn indicator mode. For example, if sensors in vehicle 10, such as lidar sensors, radar sensors, position sensors (such as GPS sensors), steering system input, infrared cameras, or other sensors, detect that vehicle 10 is about to turn, the control circuitry may activate light source 30 to provide a turn indicator. Moreover, if sensors in vehicle 10, such as ambient light sensors, determine that it is daytime (or otherwise light in the environment of vehicle 10), the control circuitry may activate light source 30 to provide a daytime running light illumination. If desired, however, the control circuitry may activate the daytime running light illumination based on the time of day, rather than (or in addition to) using an environmental sensor.

[0052] Although light 16 has been described as a headlight, this is merely illustrative. In general, one or more functions of light 16 may be incorporated elsewhere on vehicle 10, such as a taillight on rear R of FIG. 1. For example, light 16 may have a running light, brake light, reverse light, turn indicator, and rear cornering light that all operate out of a single aperture. In general, however, light 16, which has multiple lighting functions out of a single aperture, may be incorporated anywhere in vehicle 10.

[0053] In accordance with an embodiment, a headlight for a vehicle is provided that includes a cover lens, a lens group includes a first lens and a second lens, a cornering light source configured to emit light through the first lens, the second lens, and the cover lens, a pixelated light source configured to emit light through the first lens, the second lens, and the cover lens, a pre-field light source configured to emit light through the first lens and the cover lens and a daytime running light source configured to emit light through the cover lens.

[0054] In accordance with another embodiment, the headlight includes a first reflector, the cornering light source is configured to emit light toward the first reflector that is reflected from the first reflector through the first lens, the second lens, and the cover lens.

[0055] In accordance with another embodiment, the headlight includes a second reflector, the light that is reflected from the first reflector is reflected from the second reflector after passing through the first lens and the second lens.

[0056] In accordance with another embodiment, the pixelated light source includes an array of light-emitting diode pixels.

[0057] In accordance with another embodiment, the pixelated light source is configured to operate as a high-beam light source using pixels in a bottom portion of the array of lightemitting diode pixels.

[0058] In accordance with another embodiment, the pixelated light source is configured to operate as a low-beam light source using pixels in an upper portion of the array of lightemitting diode pixels.

[0059] In accordance with another embodiment, the pre-field light source is configured to emit light while the pixelated light source is operated as the low-beam light source.

[0060] In accordance with another embodiment, the pre-field light source is one of a plurality of pre-field light sources that surround the pixelated light source, and the daytime running light source surrounds the pre-field light source.

[0061] In accordance with another embodiment, the headlight includes a turn signal light source adjacent to the daytime running light source, the turn signal light source and the daytime running light source are configured to emit light that passes only through the cover lens.

[0062] In accordance with another embodiment, the lens group is a fisheye lens group, and the first lens includes a meniscus lens portion and a planar portion that surrounds the meniscus lens portion.

[0063] In accordance with another embodiment, the second lens includes a convex lens. [0064] In accordance with an embodiment, a vehicle is provided that includes a body, a cover lens formed in a single aperture in the body and a headlight includes a pixelated light source, a cornering light source, a turn indicator light source, and a daytime running light source are configured to emit light through the cover lens.

[0065] In accordance with another embodiment, the pixelated light source includes an array of pixels, lower pixels of the array of pixels are configured to emit a high beam, and upper pixels of the array of pixels are configured to emit a low beam.

[0066] In accordance with another embodiment, the headlight further includes a pre-field light source that is configured to emit light through the cover lens while the upper pixels emit the low beam.

[0067] In accordance with another embodiment, the vehicle includes sensors in the body that sense an operating state, the array of pixels is configured to emit the high beam or the low beam based on the operating state.

[0068] In accordance with another embodiment, the operating state is selected from the group consisting of: operating on an incline, operating on a decline, operating terrain, and operating location.

[0069] In accordance with another embodiment, the cornering light source is configured to change an angle of light emitted through the aperture based on the operating state.

[0070] In accordance with another embodiment, the operating state is a direction and degree of a turn.

[0071] In accordance with an embodiment, a vehicle is provided that includes a body, a cover lens formed in an aperture of the body and a headlight operable through the cover lens, the headlight includes a lens group includes a first lens and a second lens, a cornering light source configured to emit light through the first lens, the second lens, and the cover lens, a pixelated light source configured to emit light through the first lens, the second lens, and the cover lens, a pre-field light source configured to emit light through the first lens and the cover lens, a daytime running light source configured to emit light through the cover lens and a turn indicator light source configured to emit light through the cover lens.

[0072] In accordance with another embodiment, the pixelated light source includes an array of pixels, lower pixels of the array of pixels are configured to emit a high beam, and upper pixels of the array of pixels are configured to emit a low beam.

[0073] The foregoing is merely illustrative and various modifications can be made to the described embodiments. The foregoing embodiments may be implemented individually or in any combination.