Device, system, method and computer program for providing lighting to a vehicle

Abstract

Control unit (91) for controlling the lighting by a vehicle (1), configured to: Controlling a device (41) for providing a structured light beam (25) comprising a pattern (23); and Controlling the device (41) to change the pattern (23) in the structured light beam (25) depending on the detection of a deformation of the pattern caused by the impact of the structured light beam (25) on an approaching object while the vehicle (1) is moving.

Description

TECHNICAL AREA

[0001] The present disclosure relates to a device, a system, a method, and a computer program for providing lighting for a vehicle. In particular, but not exclusively, it relates to a device, a system, a method, and a computer program for providing lighting for a vehicle that allows the lighting to be adjusted.

[0002] Inventive aspects relate to a device, a system, a method, a computer program, and a vehicle. STATE OF THE ART

[0003] Vehicles must be equipped with lighting devices, such as headlights, to enable their use at night and in poor lighting conditions. The previously published prior art is: DE 20 2016 105 624 U1.

[0004] One objective of the present invention is to improve lighting devices for vehicles. BRIEF SUMMARY OF THE INVENTION

[0005] Inventive aspects and embodiments provide a device, a system, a method, a computer program and a non-transient computer-readable medium as claimed in the attached patent claims.

[0006] According to one aspect of the invention, a device for providing lighting to a vehicle is provided, wherein the device comprises: means for providing a light beam and means for controlling the light beam in order to produce a structured light beam.

[0007] The embodiments according to the invention offer the advantage of improved visibility for users driving at night or in poor visibility conditions. The structured light beam comprises a pattern that deforms when it encounters an object. This deformation of the pattern increases the visibility of the object for the driver of the vehicle.

[0008] The means for providing a light beam can include several light-emitting diodes.

[0009] The use of light-emitting diodes (LEDs) to provide the light beam offers a lightweight and effective light source. The LEDs can be individually switched on and off. This allows control over the size and shape of the light beam and / or the pattern within the beam. In some applications, the LEDs can be adjusted to provide different color temperatures. This allows the light source to be adapted to driving conditions and / or allows the user to arrange the LEDs in a preferred color setting.

[0010] The means for providing a light beam may include an optical device.

[0011] This optical device offers the advantage of directing light from a light source onto the means of projecting a pattern. This can improve the device's efficiency by reducing the amount of light wasted within it. The optical device may be a collimator or another suitable type of apparatus.

[0012] The means for controlling the light beam may include a liquid crystal display or other display device.

[0013] The liquid crystal display (LCD) allows a pattern to be created within the light beam by displaying an image on the LCD. The image displayed on the LCD can be controlled by any suitable controller and / or display driver. The image displayed on the LCD can be modified to change the pattern. Therefore, the LCD offers the advantages of a lightweight and programmable means for generating a structured light beam.

[0014] The means for controlling the light beam may include a mask.

[0015] The use of the mask offers the advantage that no electricity is required for operation, as the light is simply blocked to create the patterns needed to generate a structured beam of light.

[0016] The means for controlling the light beam can include one or more light-refracting components.

[0017] The refractive components offer the advantage of allowing light to be refracted into other parts of the beam. This makes the device more efficient, as it reduces the amount of wasted light.

[0018] The means for providing a beam of light may include a coherent light source.

[0019] The coherent light source offers the advantage that no additional optical components are required. Since the coherent light source provides a focused and collimated beam of light, there is no need for optical components such as collimators or focusing lenses. This can reduce the number of components in the device.

[0020] The coherent light source can include a laser.

[0021] The laser can provide the advantage of reducing the size of the device used to provide forward lighting to a vehicle.

[0022] The coherent light source can be arranged to provide white light.

[0023] Providing a coherent white light source can enable the light source to be used to provide headlights or other lights for a vehicle.

[0024] The means for controlling a light beam to generate a structured light beam can include a microelectromechanical mirror.

[0025] The microelectromechanical (MEM) mirror offers the advantage of reducing the size of the device used to provide forward-facing illumination to a vehicle. The MEM mirror can be rotated to control the pattern projected onto the beam. This allows the pattern and structure of the light to be modified as needed.

[0026] The means for controlling a light beam to generate a structured light beam can be arranged to allow the size and / or shape of the light beam to be changed.

[0027] This can allow for multiple settings for the forward-facing lighting. In some examples, this can allow the light beam to be switched between low beam and high beam. This can also allow for other settings; for example, a setting between low beam and high beam.

[0028] The device may include means for controlling the device to change a pattern in the structured light beam.

[0029] The means for controlling the device can include a control unit. The control unit can be implemented as hardware or by using instructions that enable hardware functionality.

[0030] This can offer the advantage of providing different patterns under different conditions. In some examples, the pattern can change as the vehicle approaches an object to make the object more visible to a user. In other examples, the pattern can change to prevent dazzling drivers of approaching vehicles.

[0031] In some examples, the means of controlling the device allows the pattern in the structured light beam to be changed based on the road in front of the vehicle.

[0032] This can offer the advantage of optimizing the structured light beam for the road ahead. For example, if the vehicle is traveling on a straight road, the pattern can consist of parallel horizontal lines, while the lines can be positioned at an angle corresponding to the road's curvature if the vehicle is traveling on a curved road. This can make it easier for the driver to see the road ahead.

[0033] In some examples, the means of controlling the device may allow a user to change the pattern in the structured beam of light.

[0034] By allowing users to change the pattern, the advantage is provided that they can select their preferred patterns and settings. This can make it possible to personalize different devices for use with different users.

[0035] The means of controlling the device can enable the pattern in the structured light beam to be changed automatically.

[0036] Enabling the pattern to change automatically can allow the light beam to be adjusted to improve visibility for the current lighting conditions and / or to improve the visibility of objects in front of the vehicle without requiring user input.

[0037] The pattern in the structured light beam can include several parallel lines.

[0038] The parallel lines offer the advantage of deforming when they collide with an object. This deformation can be clearly visible to a user, thus increasing the object's visibility. In some examples, the deformation of the parallel lines can be automatically detected by analyzing images of the pattern.

[0039] According to one aspect of the invention, a system for controlling lighting in a vehicle is provided, the system comprising: a device as previously described; and means for obtaining an image of the structured light incident on the object; means for detecting deformation of a projected pattern; and means for controlling the device to change the pattern in response to the detected deformation.

[0040] The means for controlling the device can include a control unit. The control unit can be implemented as hardware or by using instructions that enable hardware functionality.

[0041] The control unit can also provide means for detecting the deformation of the projected pattern.

[0042] The system offers the advantage of detecting objects in front of the vehicle. Once an object is detected, information about it can be provided to the driver, or a warning can be issued. Furthermore, the system allows the projected pattern and / or other settings of the forward-facing lighting to be adjusted to enhance the object's visibility to the driver.

[0043] The means of capturing an image can include a camera.

[0044] The system has the advantage that a single camera can be used to detect objects. No additional sensors would be required to enable object detection. In some cases, the objects could be identified by analyzing the images captured by the camera.

[0045] According to one aspect of the invention, a system for controlling forward-facing lighting of a vehicle, as described above, is provided, wherein the means for detecting deformation of the projected pattern comprises an electronic processor with an electrical input for receiving one or more signals from the means for obtaining an image; and an electronic storage device electrically coupled to the electronic processor and comprising instructions stored therein; wherein the means for controlling the device for changing the pattern comprises the processor being arranged to access the storage device and execute the instructions stored therein, such that it is capable of detecting that the pattern is being deformed and of instructing the means for projecting the pattern to change the pattern.

[0046] According to one aspect of the invention, a vehicle is provided which includes a device as described above.

[0047] According to one aspect of the invention, a vehicle is provided which includes a system as described above.

[0048] According to one aspect of the invention, a method for controlling the lighting of a vehicle is provided, wherein the method comprises: controlling a device to provide a structured light beam; obtaining an image of the structured light beam striking an object; detecting deformation of a pattern in the structured light beam; changing the pattern in response to the detected deformation.

[0049] According to one aspect of the invention, a computer program is provided which includes instructions which, when executed by one or more processors, cause a system to perform at least the following: controlling a device to provide a structured light beam; obtaining an image of the structured light beam striking an object; detecting deformation of a pattern in the structured light beam; changing the pattern in response to the detected deformation.

[0050] According to one aspect of the invention, a non-transient computer-readable medium is provided, comprising a computer program as previously described.

[0051] According to one aspect of the invention, a device for providing lighting to a vehicle is provided, comprising: means for providing a structured light beam.

[0052] The means for providing a structured beam of light may include a light source and one or more of the following: a liquid crystal display, a mask, one or more refractive components, a microelectromechanical mirror.

[0053] According to one aspect of the invention, a device for providing lighting to a vehicle is provided, wherein the device comprises: a light source arranged to provide a beam of light; and one or more optical components arranged to project a pattern onto the beam of light in order to produce a structured beam of light.

[0054] According to one aspect of the invention, a device for providing lighting to a vehicle is provided, wherein the device comprises: means for providing a light beam; and means for projecting a pattern onto the light beam, wherein the means for projecting the pattern is controllable in order to allow the size and / or shape of the light beam to be controlled.

[0055] The means of projecting a pattern onto the light beam may include one or more of the following: a liquid crystal display, a mask, one or more refractive components, a microelectromechanical mirror.

[0056] The device can be used to provide forward-facing lighting for a vehicle.

[0057] Within the scope of this application, it is expressly intended that the various aspects, embodiments, examples, and alternatives presented in the preceding paragraphs, in the claims, and / or in the following description and drawings, and in particular their individual features, may be considered independently of one another or in any combination. This means that all embodiments and / or features of any embodiment may be combined in any way and / or combination, provided that these features are not incompatible.The applicant reserves the right to amend any originally filed patent claim or to file any new patent claim accordingly, including the right to amend any originally filed patent claim to depend on and / or incorporate any feature of any other claim, even if it was not previously claimed in this manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] One or more embodiments of the invention will now be described by way of example only with reference to the accompanying drawings; these show: Fig. 1 an exemplary vehicle which may include embodiments according to the invention; Fig. 2 an exemplary forward-facing beam; Fig. 3A and Fig. 3B schematically shows an exemplary forward-directed beam in use; Fig. 4 an exemplary device; Fig. 5 an exemplary device; Fig. 6A to 6D is another example device. Fig. 7A to 7C are examples of forward-facing rays; Fig. 8 schematically a system for determining a surface type; Fig. 9 a control unit; Fig. 10 a control unit in a system for controlling forward-facing lighting; Fig. 11 an exemplary procedure; Fig. 12 a control unit in a system for controlling settings of a vehicle; and Fig. 13 an exemplary procedure. DETAILED DESCRIPTION

[0059] Examples from this disclosure relate to a device and systems that enable the lighting in a vehicle 1 to be controlled. The figures show a device 41 for providing lighting to a vehicle 1, the device 41 comprising: means 43 for providing a light beam 21 and means 45 for controlling the light beam 21 to produce a structured light beam 25.

[0060] Fig. Figure 1 shows an exemplary vehicle 1, which may include a device 41 and systems 81, 103 according to examples in the present disclosure. The vehicle 1 includes headlights 3 arranged at the front of the vehicle 1 and arranged to provide a forward-directed beam of light for the vehicle 1. The headlights 3 may include the device 41 as described below. It is noted that the vehicle 1 consists of Fig. 1 is provided as one embodiment and that embodiments according to the invention can be provided in any vehicle 1.

[0061] Fig. Figure 2 shows a top view of a vehicle 1 in which a device 41 is used to provide a light beam 21. In the example from Fig. 2. The vehicle 1 comprises two headlights 3. Each headlight 3 can include a device 41 that provides a light beam 21. The light beams 21 can be combined to form the forward-directed light beam for the vehicle 1.

[0062] The device 41 is arranged to control the light beam 21 to form a structured light beam. The device 41 can be arranged to project a pattern 23 onto the light beams 21 to generate a structured light beam 25. The structured light beam 25 can comprise any light beam containing multiple light and dark stripes. The light and dark stripes can be formed by the pattern 23.

[0063] In the example from Fig. 2 The pattern 23 comprises several parallel lines 27. The parallel lines 27 form dark stripes in the structured light beam 25.

[0064] In the example from Fig. 2. The parallel lines 27 are arranged in a horizontal orientation. The parallel lines 27 are arranged in the structured light beam 25 such that the spaces between the parallel lines 27 are not visible when the structured light beam 25 strikes a flat horizontal surface, such as a road. The parallel lines 27 can be arranged such that, when the structured light beam 25 strikes a flat horizontal surface, such as a road, they appear on the horizon to the driver and provide only minimal distraction.

[0065] When the parallel lines 27 encounter an object other than the flat road surface, they can deform as described below.

[0066] In the example from Fig. In the second example, the parallel lines 27 are arranged in a regular pattern such that each parallel line 27 has the same thickness as other parallel lines 27, and the spaces between adjacent parallel lines 27 are the same for each parallel line 27 in the pattern 23. It should be noted that in other examples, the patterns 23 may be irregular. For example, the different parallel lines 27 may have different thicknesses, and there may be different spaces between different pairs of parallel lines 27.

[0067] It is noted that shapes other than parallel lines 27, which can be used in pattern 23, can be used in other embodiments of the invention. For example, in other examples, pattern 23 could comprise curved lines, dots, vertical lines, or any other suitable shapes or combinations of shapes.

[0068] In the example from Fig. In 2, the pattern 23 is projected onto the light beam 21 such that the pattern 23 is positioned at the widest part of the light beam 21. This can increase the effectiveness of the pattern 23 in enhancing the visibility of objects. In other examples, the pattern 23 can be provided at other positions in the light beam 21. In some examples, the device 41 can be arranged such that the pattern 23 can be provided at different positions in the light beam 21. In some examples, the position of the pattern 23 in the light beam 21 can be adjusted by a control unit 91 to ensure that objects remain visible as the vehicle 1 approaches the object.

[0069] Fig. 3A and Fig. Figure 3B schematically shows how pattern 23 improves the visibility of objects. Fig. Figure 3A shows a speed bump 31 located in the center of the road. The speed bump 31 comprises a raised section on the flat surface 33 of the road. It is useful for improving the visibility of these objects for a driver.

[0070] Fig. Figure 3B schematically shows the braking threshold 31, which is illuminated by a structured light beam 25. In the example from Fig. For the sake of clarity, only pattern 23 of the structured light beam 25 is shown in 3B.

[0071] When the pattern 23 encounters the speed bump 31, this causes a deformation of the parallel lines 27 in the pattern 23. The parallel lines 27 deform and curve around the shape of the speed bump 31. The deformation of the parallel lines 27 may be visible to the user. The pattern 23 also deforms, so that the gap between the parallel lines 27 also becomes visible to the driver. This increases the visibility of the speed bump 31.

[0072] In the example from Fig. In 3B, the parallel lines 27 are deformed such that a curvature 35 is visible in each of the parallel lines 27 at the edges of the speed bump 31. This can increase the visibility of the edge of the speed bump 31 to a driver of vehicle 1. In some examples, the positions of the curvatures in the pattern 23 can allow a control unit 91 to determine the shape and / or size of the speed bump or any other object. This information can be used to control vehicle settings.

[0073] The deformations of the pattern 23 generated by the object can depend on several factors, such as the object's size, shape, and position relative to the vehicle 1. The deformations can also depend on the pattern 23 provided in the structured light beam 25. In some examples, the device 41 can be controlled by a control unit 91 so that, when the structured light beam 25 strikes an object, the pattern 23 can change as the vehicle 1 approaches the object to ensure that the object remains visible.

[0074] It is pointed out that, although a braking threshold 31 is used in the examples of the Fig. 3A and Fig. Since 3B has been used, the deformation of pattern 23 can also be caused by any object placed in the structured light beam 25. The objects could include obstacles on the road, potholes, street furniture, or any other suitable object.

[0075] Fig. Figure 4 shows an exemplary device 41. The exemplary device 41 can be provided in a vehicle 1 and can be used to provide forward-facing lighting. The forward-facing lighting can include a structured light beam 25. The structured light beam 25 can be described in relation to Fig. 2 to 3B correspond. The device 41 can be provided in the headlight 3 of the vehicle 1. Each of the headlights 3 can include one device 41.

[0076] The device 41 comprises means 43 for providing a light beam 21 and means 45 for controlling the light beam 21 to generate a structured light beam 25. It should be noted that only the components required for the following description are shown. Fig. 4 are shown. The device 41 may include further components, such as optical devices and lenses, which are shown in Fig. 4 are not shown.

[0077] The means 43 for providing a light beam 21 can comprise any suitable light source. In some examples, the means 43 for providing a light beam 21 can comprise one or more light-emitting diodes (LEDs), a coherent light source, a laser, an incandescent lamp, or any other suitable light source.

[0078] The means 43 for providing a light beam 21 can provide white light. The color temperature of the light beam 21 can be determined by the means 43 for providing a light beam 21. In some examples, the means 43 for providing a light beam 21 can be configured to allow the color temperature of the provided light to be adjusted. This can allow the user to select a preferred shade of white. For example, users may prefer a white light with a high color temperature, which appears bluish-white. Other users may find that the high color temperature tires their eyes and may prefer white light with a low color temperature. The white light may appear yellowish-white.

[0079] In some examples, the means 43 for providing a light beam 21 can be controlled by a control unit 91 to allow the color temperature to be changed automatically without user input. For example, under foggy or snowy conditions, white light with a high color temperature can cause increased glare and eye fatigue, while white light with a low color temperature can increase visibility and reduce eye fatigue. If it is determined that the vehicle 1 will be used under foggy or snowy conditions, then the means 43 for providing a light beam 21 can be adjusted to lower the color temperature and improve visibility for the driver.

[0080] The device 41 is arranged such that the light beam 21 strikes the means 45 for controlling the light beam 21 to produce a structured light beam 25. The means 45 for controlling the light beam 21 to produce a structured light beam 25 can comprise any means that enables one or more dark stripes to be projected onto the light beam 21. In some examples, the means 45 for controlling the light beam 21 to produce a structured light beam 25 can comprise means for projecting a pattern 23 onto the light beam 21. In some examples, the means 45 for controlling the light beam 21 can comprise a display, a MEM device such as a MEM mirror, a mask, a refractive filter, or any other suitable means.The means 45 used to control the light beam 21 may depend on the means 43 used to provide the light beam 21, on the pattern 23 to be projected onto the light beam 21 and / or on any other suitable factor.

[0081] In some examples, the means 45 for controlling the light beam 21 can also be arranged to allow the size and / or shape of the forward-directed light beam to be adjusted. For example, the means 45 for controlling the light beam 21 can allow the forward-directed light beam to be switched between a high beam and a low beam setting. In some examples, the means 45 for controlling the light beam 21 can allow the forward-directed light beam to be directed away from approaching drivers in order to reduce glare for them.

[0082] The pattern 23 projected onto the light beam 21 creates a structured light beam 25. The structured light beam 25 encompasses the pattern 23. In the example from Fig. 4. Pattern 23 includes several parallel lines 27. Other patterns 23 may be used in other examples of the revelation.

[0083] The structured light beam is projected onto the device 41 to provide a forward-directed light beam, or at least part of a forward-directed light beam, for the vehicle 1.

[0084] Fig. Figure 5 schematically shows an exemplary device 41 in greater detail. The exemplary device 41 from Fig. 5 further comprises means 43 for providing a light beam 21 and means 45 for projecting a pattern 23 onto the light beam 21 as previously described. Corresponding reference symbols are used for corresponding features.

[0085] In the exemplary device 41 from Fig. 5 includes the means 43 for providing a light beam 21 LEDs 53 and the means 45 for controlling the light beam 21 includes a display 59.

[0086] The device 41 from Fig. The device 41 comprises a coolant 51. The coolant 51 can include any means that can be arranged to cool the LEDs 53 or other light sources. The coolant 51 can be coupled to the LEDs 53 to reduce their temperature. This can increase the efficiency of the device 41. The coolant 51 can include any heat sink.

[0087] The LEDs 53 can be arranged in any array. The LEDs 53 can be arranged such that different LEDs in the array can be switched on and off. This can allow the size and / or shape of the light beam 21 to be controlled. In some examples, this could further enable a pattern 23 to be provided in the light beam 21.

[0088] The LEDs 53 can be white LEDs 53. The LEDs 53 can be controllable such that the color temperature of the light beam 21 can be adjusted. The color temperature can be set in response to user input. In some examples, the color temperature can be set automatically in response to conditions detected by the vehicle 1 or a control unit 91 in the vehicle 1.

[0089] The LEDs 53 can be coupled to one or more optical devices 55. The optical devices 55 can comprise any means arranged to collect light from the LEDs 53 and direct the light beam 21 onto the display 59. In some examples, the optical devices 55 can focus the light into a uniform beam so that the light beam 21 striking the display 29 has a uniform intensity. The optical devices 55 can comprise any suitable means, such as lenses, light guides, collimators, compound parabolic concentrators, or any other suitable device or combination of devices.

[0090] The optical devices 55 used may depend on the type of LEDs 53 used and on the type of display 59. In some examples, the optical devices 55 used may depend on the position of the LEDs 53 relative to the display 59.

[0091] In the example from Fig. The device 41 further comprises a polarizer 57. The polarizer 57 can be provided between the display 59 and the optical devices 55. The polarizer 57 can be arranged to polarize the light beam 21 before it strikes the display 59. The polarizer 57 can restrict the light passing through to correspond to a display 59. The polarizer 57 can improve the contrast of the pattern in the light beam 21.

[0092] The device 41 is arranged such that light passing through the polarizer 57 then strikes the display 59. The display 59 can comprise any means that can be used to display a pattern 23, which can then be projected onto the light beam 21. In the example from Fig. 5. The display 59 can comprise a liquid crystal display (LCD). Other display types can be used in other embodiments of the invention.

[0093] The LCD can comprise a matrix containing multiple pixels. The matrix can have multiple rows and multiple columns. Each pixel can be individually addressable. Each pixel can be switched on and off independently of other pixels in the array. This could allow a pattern 23 to be displayed on the screen 59 and projected onto the light beam 21.

[0094] Display 59 is configurable to show different images. This allows different patterns 23 to be projected onto the light beam 21. The different images can be displayed by turning different pixels in display 59 on or off.

[0095] The display 59 can be controlled by a control unit 91 or another display driver. The display 91 can be controlled to control the pixels in the display 59 in order to control the image displayed on the display 59. This can allow the pattern 23 in the structured light beam 25 to be changed as required. In some examples, the control unit 91 can allow a user to select a preferred pattern type 23 for the structured light beam 25. In some examples, the control unit 91 and the display 59 can allow a user to select different settings for the forward-facing lighting, such as switching between a high beam and a low beam setting. In some examples, the control unit 91 can allow the pattern 23 to be changed to adapt to the road ahead of the vehicle 1.For example, if vehicle 1 is traveling on a straight road, pattern 23 may include several horizontal parallel lines or other features optimized to highlight features on the straight road. If vehicle 1 is traveling on a curved road, for example, pattern 23 may include several lines provided at an angle to correspond to the curvature of the road, or other features optimized to highlight features of the road's curvature.

[0096] In some examples, the control unit 91 can allow the pattern 23 to be modified automatically without user input. For example, if an object is detected in front of a vehicle 1, the pattern 23 can be modified to ensure that the pattern 23 matches the object and / or to increase the object's visibility. The object's visibility can be increased by increasing the number of parallel lines 27 in a pattern 23, by increasing the width of the parallel lines 27, or by some other appropriate modification.

[0097] The device 41 is arranged such that light passing through the display 59 then strikes a far-field lens 61. The far-field lens 61 can comprise any means that may be arranged to direct the structured light beam 25 in front of the vehicle 1. The far-field lens 61 can deflect the structured light beam 25 to provide forward-directed illumination for the vehicle 1.

[0098] It is pointed out that changes to device 41 from Fig. 5. For example, in other examples, other means 45 for controlling the light beam 21 may include a mask or other filters. The mask can act to block light in the area of ​​the light beam 21 where dark areas are required. The use of masks or filters can provide the advantage that they do not require electricity to operate.

[0099] In some examples, the means 45 for controlling the light beam 21 may include one or more refractive components. The refractive components may be arranged to refract light from the region of the light beam 21 where the dark areas are provided and to direct the refracted light into the other regions of the light beam 21. This may increase the efficiency of the device 41 by reducing the amount of light that is wasted.

[0100] Fig. Figure 6A shows another exemplary device 41 and Fig. Figures 6B to 6D show examples of patterns 23 that can be projected onto the light beam 21. The exemplary device 41 from Fig. 6A further comprises means 43 for providing a light beam 21 and means 45 for controlling the light beam 21 as described above. Corresponding reference numerals are used for corresponding features.

[0101] In the example from Fig. 6A comprises the means 43 for providing a light beam 21 and a coherent light source 63. The coherent light source 63 may comprise a laser or any other suitable means.

[0102] The coherent light source 63 can provide a very small and focused beam of light 21. Because the beam of light 21 is small and focused, it is not necessary to arrange an optical device between the coherent light source 63 and the means 45 for controlling the beam of light 21.

[0103] In the exemplary device 41 from Fig. The means 45 for controlling the light beam 21 includes a MEM mirror 65. Since the light beam 21 provided by the coherent light source 63 is very narrow, this allows a very small component, such as a MEM mirror 65, to be used as the means 45 for projecting a pattern 23 onto the light beam 21. This allows the device 41 to be very small. This can reduce the size of the headlights 3 at the front of the vehicle 1.

[0104] The MEM mirror 65 is arranged such that the light beam 21 from the coherent light source 63 strikes the MEM mirror 65. The MEM mirror 65 is arranged to reflect at least a part of the incident light beam 25.

[0105] The MEMs can be arranged to be rotated so that the small incident light beam 21 is reflected to provide the forward-directed light beam for the vehicle 1. The MEMs can also be arranged to allow a pattern 23 to be projected onto the light beam 21. The pattern 23 can comprise a structured light beam as previously described.

[0106] Fig. Figures 6B to 6C show exemplary patterns 23 that can be projected into the light beam 21 by the MEM mirrors 65.

[0107] In Fig. 6B includes a single dark section 67 in the pattern. The single dark section 67 is provided in the upper section of the light beam 21. The dark section enables the device 41 to provide dipped light.

[0108] The pattern from Fig. 6C comprises an ellipse 68. Other shapes may be used in other embodiments of the invention. The ellipse 68 is provided in the central section of the light beam 21 and can be used to provide high beam. The pattern from 6C further comprises a dark rectangle 69. The dark rectangle 69 may be arranged to reduce glare for approaching drivers. In some examples, the MEMs 65 may be arranged such that the position of the rectangle 69 changes as an approaching vehicle 1 approaches the device 41. In some examples, the MEMs 65 may be arranged such that the size of the rectangle 69 changes as an approaching vehicle 1 approaches the device 41.

[0109] In Fig. 6D comprises pattern 23, several horizontal parallel lines 27. Pattern 23 can be used to increase the visibility of objects as described previously.

[0110] The means 45 for controlling the light beam 21 can further enable the settings of the forward-facing illumination to be changed. The means 45 for controlling the light beam 21 can enable the size and / or shape of the light beam 21 to be changed. This can enable the forward-facing illumination to be changed between high beam and any other settings.

[0111] Fig. Figures 7A to 7C show exemplary forward-facing beams 21 that can be provided using the device 41 in various control settings.

[0112] Fig. Figure 7A shows three different settings of the forward-facing lighting that can be provided by the device 41. The different settings of the forward-facing lighting include a low beam 71, a high beam 73, and a medium beam 75.

[0113] The low beam 71 can be a conventional low beam. The low beam 71 can be directed towards the ground 77 and can project only a short distance in front of the vehicle 1. The high beam 73 can be a conventional high beam. The high beam 73 can be directed at the driver's eye level in front of the vehicle 1. The high beam 73 can be projected at a great distance in front of the vehicle 1.

[0114] The center beam 75 can provide a forward-facing illumination setting that lies between the low beam 71 and the high beam 73. The center beam 75 can be projected further than the low beam 71. The center beam 75 could be projected to a similar distance as the high beam 73. However, the center beam 75 is projected at a lower height than the high beam 73. The center beam 75 can be projected at a height below the driver's eye level.

[0115] The central beam of light can improve the visibility of the driver of vehicle 1 without dazzling approaching drivers. Fig. Figure 7B shows a high beam setting 73 in use, with an approaching vehicle 1A. As the high beam 73 spreads to the driver's eye level, it causes the high beam 73 to strike the windshield of the approaching vehicle 1A. This can cause glare and impaired visibility for the driver of the approaching vehicle 1A.

[0116] Fig. Figure 7B shows a central light beam 75, which can be provided by the device 41 as previously described. The central light beam 75 extends over the same horizontal distance as the high beam 73 and thus provides improved visibility for the driver of vehicle 1. However, since the central light beam 75 is projected below the driver's eye level, it only strikes the lower portion of the approaching vehicle 1A. The central light beam 75 does not strike the windshield of the approaching vehicle 1A and therefore does not cause glare for the driver of the approaching vehicle 1A.

[0117] In some examples, the means 45 for controlling the light beam 21 can enable the forward lighting settings to be changed automatically without user input. For example, if it is determined that the vehicle 1 is approaching a condition in which glare would impair visibility, then the means 45 for controlling the light beam 21 could switch the shape of the light beam 21 from high beam 75 to medium beam 75 or to low beam 71. Conditions under which glare could impair visibility could include conditions such as snow, ice, haze, fog, approaching vehicles 1A, or other appropriate conditions.

[0118] Fig. Figure 8 shows a vehicle 1 that includes a system 81 for determining a surface type. In the example from Fig. 8. The vehicle 1 includes a means 83 for projecting a light beam 85 onto the ground 87 in front of the vehicle 1. The vehicle 1 may further include means for analyzing the light reflected from the ground 87 to identify the surface type of the ground 85, and means for controlling one or more settings of the vehicle 1 in response to the identified surface type. The means for analyzing and the means for controlling may be provided inside the vehicle and are thus not located in Fig. 8 shown.

[0119] The means 83 for projecting a light beam 85 onto the ground 87 in front of the vehicle 1 can comprise any suitable light source. In some examples, the means 83 for projecting a light beam 85 onto the ground 87 in front of the vehicle 1 can comprise a coherent light source, such as a laser.

[0120] The means 83 for projecting a light beam 85 onto the ground 87 in front of the vehicle 1 can be arranged such that the light beam 85 strikes the ground 87 at a point in front of the forward-directed light beam 75 of the vehicle 1. In the example of Fig. 8 is the forward-facing ray 75, a middle ray 75 as previously described. Other forward-facing rays may be used in other examples of the revelation.

[0121] In some examples, the light beam 85 could strike a point on the ground 87 that is far enough in front of the vehicle 1 to allow the vehicle 1 sufficient time to determine the surface type on the ground before reaching the ground 87. In some examples, the light beam 85 could strike a point on the ground that is on the order of 400 m in front of the vehicle 1.

[0122] The means 83 for projecting the light beam 85 can be provided as a separate light source from the headlights and all other forward-facing lighting devices. In the example from Fig. In figure 8, the means 83 for projecting the light beam 85 onto the roof of the vehicle 1 is provided. In other embodiments of the invention, the means 83 for projecting the light beam 85 may be provided at other positions on the vehicle 1.

[0123] The light beam 85 can comprise any suitable type of light. In some examples, the light beam 85 can comprise coherent light. This can enable a spectral analysis of reflected light. In some examples, the light beam 85 can comprise infrared light. The infrared light would not be visible to the driver of vehicle 1. This would prevent the driver from being distracted by the light beam 85. In other examples, the light beam 85 can comprise light in the visible part of the electromagnetic spectrum.

[0124] The light beam 85 can be provided as a small, narrow beam. The light beam 85 can be large enough to allow spectral analysis of reflected light, but small enough to prevent glare or other problems for the approaching vehicle 1A.

[0125] The light striking the ground 87 can be reflected back towards the vehicle 1. The amount and wavelengths of light reflected from ground 87 depend on the surface type of ground 87. For example, ice has different reflective properties than surfaces such as gravel or sand. This causes the light beam 85 to be reflected with varying intensity. The reflected light can be analyzed by any suitable method to determine the surface type of ground 87.

[0126] In some examples, the surface area can be determined by performing a spectral analysis of the reflected light. Any suitable means can be used to perform the spectral analysis of the light. For example, a spectrometer can be used in some examples.

[0127] The information obtained from the spectral analysis can then be compared with information obtained from known types of surfaces. If the spectrum of the reflected light corresponds to the spectrum of a known surface type, this can make it possible to identify the surface type of soil 87.

[0128] In response to the determination of the surface type of ground 87, one or more settings of vehicle 1 can be controlled. The settings of vehicle 1 can be controlled to improve the performance of vehicle 1 when driving on ground 87, which comprises the identified surface type.

[0129] In some examples, the settings of vehicle 1 that are controlled may include settings relating to the forward-facing lighting of vehicle 1. In these examples, controlling the settings of the forward-facing lighting device may include controlling one or more of the following: the brightness of the forward-facing light beam, the size of the forward-facing light beam, the shape of the forward-facing light beam, the color temperature of the forward-facing light beam, an applied pattern to create structured light in the forward-facing light beam, and any other suitable parameter.

[0130] Changing the settings related to the vehicle's forward-facing lighting 1 allows the forward-facing light beam to be adjusted according to the requirements of the identified surface type. For example, if the identified surface type is a highly reflective surface, such as ice or water, the forward-facing lighting can be switched to a medium light beam 75 to prevent the driver from being dazzled by reflections from the highly reflective surface. In other examples, the forward-facing light beam could be controlled to make it easier for the driver to see the surface.

[0131] In some examples, the settings of Vehicle 1 that are controlled may include settings related to the traction control, stability control, and / or anti-lock braking system (ABS) of Vehicle 1. For example, as Vehicle 1 approaches a low-friction surface, traction control may be activated, or other settings may be activated before the user reaches the low-friction surface. This can provide an enhanced experience for the driver of Vehicle 1, as they might otherwise not notice the change in surface.

[0132] The device 41 and the systems 81 as described above can be controlled by means of one or more control units 91. An example of a control unit 91 is shown in Fig. 9 is shown and described below. The control unit 91 can be a chip or a chipset. The control unit 91 can form part of one or more systems included in the vehicle 1. The control unit 91 can be configured to control the forward-facing lighting of the vehicle 1 or any other control setting of the vehicle 1.

[0133] The implementation of a control unit 91 can be carried out as a control unit circuit. The control unit 91 can be implemented entirely in hardware, it can have only certain aspects in software, such as firmware, or it can be a combination of hardware and software (including firmware).

[0134] As in Fig. As shown in Figure 9, the control unit 91 can be implemented using instructions that enable hardware functionality, for example, using executable instructions of a computer program 97 in a general-purpose processor or in a special-purpose processor 93, which may be stored in a computer-readable storage medium (diskette, memory, etc.) in order to be executed by such a processor 93.

[0135] The processor 93 is configured to read from and write to the memory 95. The processor 93 may further include an output interface through which data and / or instructions are output by the processor 93, and an input interface through which data and / or instructions are input to the processor 93.

[0136] Memory 95 contains a computer program 97, which comprises computer program instructions 99 (computer program code) that controls the operation of the control unit 91 when loaded into the processor 93. The computer program instructions 97 of the computer program 97 provide the logic and routines that enable the control unit 91 to control the forward-facing lighting of the vehicle 1 and any other control settings of the vehicle 1. By reading memory 95, the processor 93 is able to load and execute the computer program 97.

[0137] As in Fig. As shown in Figure 9, the computer program 97 can reach the control unit 91 via any suitable delivery mechanism 101. The delivery mechanism 101 can be, for example, a non-transient, computer-readable storage medium, a computer program product, a storage device, a recording medium such as a Compact Disc Read-Only Memory (CD-ROM) or a Digital Versatile Disc (DVD)—in other words, a manufactured product that tangibly embodies the computer program 97. The delivery mechanism can be a signal designed to reliably transmit the computer program 97. The control unit 91 can forward or transmit the computer program 97 as a computer data signal.

[0138] Although Memory 95 is represented as a single component / circuit, it may be implemented as one or more separate components / circuits, some or all of which may be integrated / removable and / or provide permanent / semi-permanent / dynamic / cached storage.

[0139] Although the Processor 93 is depicted as a single component / circuit, it can be implemented as one or more separate components / circuits, some or all of which may be integrated / removable. The Processor 93 can be a single-core or multi-core processor.

[0140] Fig. Figure 10 shows a control unit 91 in a system 103 for controlling forward-facing lighting. The system includes a control unit 91, which corresponds to the above description with respect to Fig. 9. System 103 further comprises a device 41 for providing forward-facing illumination, which corresponds to the description in relation to one of the Fig. can correspond to 2 to 8.

[0141] In these examples, the control unit 91 can be configured to provide control signals to the device 41. The control unit 91 can be configured to output control signals to control the means 45 for projecting a pattern 23 onto the light beam 21. This can enable the control unit 91 to control the patterns 21 in the structured light beam 25. This can further enable the control unit 91 to control other settings of the forward-facing illumination, such as the size and / or shape of the beam, the color temperature, and any other suitable parameters.

[0142] In some examples, the control unit 91 may be configured to control the device 41 in response to user input. For example, the driver of vehicle 1 may be able to select a preferred pattern 23 to provide the structured light beam 25. In some examples, the control unit 91 may allow a driver to control other settings of the forward-facing lighting, such as the size and / or shape of the forward-facing light beam, the color temperature, and any other parameters.

[0143] In some examples, the control unit 91 can be arranged to automatically activate the device 41 without user input. For example, it can activate the parameters of the forward-facing lighting in response to input from a sensor.

[0144] In the example from Fig. The system 103 comprises an image acquisition device 105. The image acquisition device 105 may include a camera or any other suitable device that may be arranged to capture images. The image acquisition device 105 may be arranged to capture images of the area illuminated by the structured light beam 25. This may make it possible to arrange the image acquisition device 105 to capture images that include the patterns 23 in the structured light beam 25.

[0145] The imaging device 105 can be coupled to the control unit 91 in such a way that signals indicating the images captured by the image acquisition device 105 are provided to the control unit 91. The control unit 91 can then enable the analysis of the images obtained by the image acquisition device 105. In the example from Fig. The control unit 91 can be positioned to analyze the image in order to identify a deformation of the pattern 23. Any suitable image processing technique can be used to identify these deformations.

[0146] The identified deformations of pattern 23 can be used to detect an object in front of vehicle 1. The deformations of pattern 23 can be used to identify the size and shape of the object in front of vehicle 1.

[0147] In response to the detected deformation, pattern 23 can be modified. Pattern 23 can be modified to increase the visibility of the object to the driver of vehicle 1. The pattern can be modified by increasing the number of lines in the pattern, by increasing the width of the lines in pattern 23, or by another appropriate means.

[0148] In some examples, once an object has been identified, information about the object can be provided to the driver of vehicle 1. For example, a warning message can be displayed on a windshield display (head-up display (HUD)) or on any other means to inform the driver about the object.

[0149] Accordingly, the control unit 91 comprises the following: at least one processor 93; and at least one memory 95, including computer program code 99, wherein the at least one memory 95 and the computer program code 99 are arranged to cause the control unit 91 to perform at least the following: controlling a device for providing a light beam; controlling a device 41 for providing a pattern 23 to the light beam 21 in order to provide a structured light beam 25; receiving a structured light beam 25 striking an object; detecting deformation of the projected pattern 23 in the structured light beam 25; and changing the projected pattern 23 in response to the detected deformation.

[0150] It should be noted that System 103 may include components in other examples that are in Fig. 10 cannot be shown. For example, the system 103 could include other sensors that can be used to identify objects and other conditions that may affect the settings selected for the vehicle's forward-facing lighting 1.

[0151] Fig. Figure 11 shows an example procedure. The procedure can be performed using the system consisting of Fig. The method is carried out in section 10. Block 111 comprises controlling a device 41 to provide a light beam. Block 113 comprises controlling the device 41 to project a pattern 23 onto the light beam 21 to generate a structured light beam 25. Block 115 comprises obtaining an image of the structured light beam 25 striking an object, and Block 117 comprises detecting the deformation of the projected pattern 23 in the structured light beam 25. Block 119 comprises modifying the projected pattern 23 in response to the detected deformation.

[0152] Fig. Figure 12 shows a control unit 91 in a system 81 for controlling settings of a vehicle 1. The system 81 includes a means 83 for projecting a light beam 85 onto the ground 87 in front of the vehicle 1. The system 81 further includes means 121 for analyzing the reflected light and means 123 for controlling the settings of the vehicle 1.

[0153] The means 83 for projecting a beam of light 85 onto the ground 87 can be a light source, as previously described in relation to Fig. 8 described. The means 83 for projecting a light beam 85 onto the ground 87 can be controlled by the control unit 91.

[0154] The means 83 for projecting a light beam 85 onto the ground 87 and the control unit 91 can be located at different points in the vehicle 1. For example, the means 83 for projecting a light beam 85 onto the ground 87 can be located at the front of the vehicle 1 to allow the light to be projected in front of the vehicle 1. The control unit 91 can be part of a control system that can be located at any point in the vehicle 1.

[0155] The control unit 91 can be described above with regard to Fig. 9 correspond.

[0156] The instrument 121 for analyzing reflected light may comprise any means that enables information to be obtained from the reflected light. In some examples, the instrument 121 for analyzing reflected light may be configured to perform a spectral analysis of the reflected light. The instrument 121 for analyzing reflected light may be configured to identify the wavelengths and / or luminous intensities of the reflected light. In some examples, the instrument 121 for analyzing reflected light may comprise a spectrometer or other suitable means.

[0157] The information obtained from the reflected light can be analyzed to identify the soil surface type. The soil surface type 87 can be identified by comparing properties of the obtained spectrum of the reflected light with properties of spectra for reflection from known surface types. In some examples, the comparison between the obtained spectrum and the known spectra can be performed by a module of the control unit 91.

[0158] The means 121 for analyzing reflected light can be coupled to the control unit 91 to enable information indicative of the identified surface type to be provided to the control unit 91. The control unit 91 can comprise one or more modules that provide means 123 for controlling one or more settings of the vehicle 1. The vehicle 1 settings that can be controlled could include settings for forward-facing lighting, traction control, a braking system, and any other suitable settings.

[0159] Accordingly, the control unit 91 comprises the following: at least one processor 93; and at least one memory 95, including computer program code 99, wherein the at least one memory 95 and the computer program code 99 are arranged to enable the control unit 91 to perform at least the following: controlling a light source to project a beam of light onto the ground in front of the vehicle; analyzing light reflected from the ground to identify a surface type; and controlling one or more settings of the vehicle in response to the identified surface type.

[0160] Fig. Figure 13 shows an example procedure. The procedure can be performed using the system consisting of Fig. 12 will be implemented.

[0161] The method comprises, in block 131, projecting a light beam 85 onto the ground 87 in front of the vehicle 1. In block 133, the method comprises analyzing light reflected from the ground 87 to identify a surface type of the ground 87, and in block 135, controlling one or more settings of the vehicle 1 in response to the identified surface type.

[0162] For the purposes of this disclosure, it is noted that the control unit(s) described herein may each comprise a control unit or a computing device with one or more electronic processors. A vehicle and / or a system thereof may comprise a single control unit or electronic control unit, or alternatively, different functions of the control unit(s) may be embodied or incorporated in different control units or control devices. A set of instructions could be provided which, when executed, cause the control unit(s) or control device(s) to implement the control techniques described herein (including the described method(s)).The set of instructions can be embedded in one or more electronic processors, or alternatively, the set of instructions could be provided as software that is executed by one or more electronic processors. For example, a first control unit can be implemented in software that runs on one or more electronic processors, and one or more further control units can also be implemented in software that runs on one or more processors, optionally the same one or more electronic processors as the first control unit. It should be noted, however, that other arrangements are also suitable, and therefore the present disclosure is not intended to limit any particular arrangement. In any case, the set of instructions described above can be stored in a computer-readable storage medium (e.g.,embedded in a non-transient storage medium) which may include any mechanism for storing information in a form readable by a machine or electronic processor / computing device, including, without limitation: a magnetic storage medium (e.g., floppy disk); an optical storage medium (e.g., CD-ROM); a magneto-optical storage medium; a read-only memory (ROM); a random-access memory (RAM); a erasable programmable memory (e.g., EPROM and EEPROM); flash memory; or electrical or other types of medium for storing such information / instructions.

[0163] The one in Fig. 11 and Fig.The 13 blocks shown can represent steps in a procedure and / or sections of code in computer program 97. The representation of a particular order for the blocks does not necessarily imply that there is a required or preferred order for the blocks, and the order and arrangement of the blocks can be varied. Furthermore, it may be possible for some steps to be omitted.

[0164] Although embodiments of the present invention have been described in the preceding sections with reference to various examples, it should be noted that modifications can be made to the given examples without deviating from the scope of the claimed invention.

[0165] The features described in the preceding description can be used in combinations that differ from the combinations explicitly described.

[0166] Although functions have been described with reference to certain features, these functions can be performed by other functions, regardless of whether they have been described or not.

[0167] Although features have been described with reference to specific embodiments, these features may also be present in other embodiments, regardless of whether they have been described or not.

[0168] While the foregoing specification has attempted to draw attention to those features of the invention which were considered to be of particular importance, it should be understood that the applicant claims protection in respect of any patentable feature or patentable combination of features referred to above and / or shown in the drawings, regardless of whether particular importance has been attached to them or not.

Claims

[1] Control device (91) for controlling the lighting by a vehicle (1), configured to: Controlling a device (41) for providing a structured light beam (25) comprising a pattern (23); and Controlling the device (41) to change the pattern (23) in the structured light beam (25) depending on the detection of a deformation of the pattern caused by the impact of the structured light beam (25) on an approaching object while the vehicle (1) is moving. [2] Control device (91) according to claim 1, wherein controlling the device (41) for providing the structured light beam (25) comprises controlling a plurality of light-emitting diodes. [3] Control device (91) according to one of the preceding claims, wherein controlling the device (41) for providing the structured light beam (25) comprises controlling an optical device. [4] A control device (91) according to any one of the preceding claims, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises controlling a liquid crystal display. [5] Control device (91) according to one of claims 1 to 3, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises controlling a mask. [6] Control device (91) according to one of claims 1 to 3, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises controlling one or more light-refracting components. [7] The control device (91) of claim 1, wherein controlling the device (41) for providing the structured light beam (25) comprises controlling a coherent light source. [8] The control device (91) of claim 7, wherein the coherent light source comprises a laser. [9] Control device (91) according to one of claims 7 to 8, wherein the coherent light source is arranged to provide white light. [10] Control device (91) according to one of claims 7 to 9, wherein controlling the device (41) for providing the structured light beam (25) comprises controlling a microelectromechanical mirror. [11] A control device (91) according to any one of the preceding claims, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises enabling the size and / or shape of the structured light beam (25) to be changed. [12] A controller (91) according to any one of the preceding claims, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises enabling the pattern (23) in the structured light beam (25) to be changed based on the road ahead of the vehicle. [13] A control device (91) according to any one of the preceding claims, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises allowing a user to change the pattern (23) in the structured light beam (25). [14] A control device (91) according to any one of the preceding claims, wherein controlling the device (41) for changing the pattern (23) in the structured light beam (25) comprises enabling the pattern (23) in the structured light beam (25) to be changed automatically. [15] Control device (91) according to one of the preceding claims, wherein the pattern (23) comprises a plurality of parallel lines (27). [16] System (103) for controlling the lighting by a vehicle (1), the system (103) comprising: a device (41) for providing illumination by a vehicle (1), the device (41) comprising: means (43) for providing a light beam (21) and means (45) for controlling the light beam (21) to produce a structured light beam (25) comprising a pattern (23); means (105) for capturing an image of the structured light beam (25) impinging on an approaching object; Means for detecting the deformation of the pattern caused by the impingement of the structured light beam (25) on the approaching object while the vehicle (1) is moving; and Means for controlling the device (41) to change the pattern (23) in the structured light beam (25) depending on the detected deformation. [17] The system (103) of claim 16, wherein the means (105) for capturing an image comprises a camera. [18] Vehicle (1) comprising a control unit (91) according to one of claims 1 to 15 or a system (103) according to claim 16 or 17. [19] A method for controlling lighting by a vehicle (1), the method comprising: Controlling a device (41) for providing a structured light beam (25) comprising a pattern (23); and Changing the pattern (23) in the structured light beam (25) depending on the detected deformation of the pattern (23) generated by the impact of the structured light beam (25) on an approaching object while the vehicle (1) is moving. [20] A computer program (97) comprising instructions which, when executed by one or more processors, cause a system (103) to perform at least the following: Controlling a device (41) for providing a structured light beam (25) comprising a pattern (23); and Changing the pattern (23) in the structured light beam (25) depending on a detected deformation of the pattern (23) generated by the impact of the structured light beam (25) on an approaching object while the vehicle (1) is moving. [21] A non-transient computer-readable storage medium comprising a computer program (97) according to claim 20.

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