Lighting device for motor vehicle headlights

Abstract

A lighting device (10) for a motor vehicle headlight for identifying and selectively blocking a light-emitting object (20) located in front of the lighting device (10) with a segmented light distribution, the lighting device (10) comprising the following components: a light generating unit (100) having a plurality of groups of luminous pixels (110a, 110b, 110c, 110d), a light sensor device (200) comprising a first light sensor (210) having a plurality of first sensor pixels (211) for identifying light from the light-emitting object (20), and a control unit (300) connected to the light generating unit (100) and the light sensor device (200) and configured to control the light generating unit (100) to generate the segmented light distribution, wherein the sensor The pixels (211) are capable of detecting light at detection solid angles (DRa, DRb, DRc, DRd) and are respectively assigned to luminous pixel groups (110a, 110b, 110c, 110d), wherein light incident on each first sensor pixel (211) can be detected as a light flow value assigned to the corresponding first sensor pixel (211), wherein the light sensor device (200) additionally comprises a second light sensor (220) for distance measurement, and wherein the control unit (300) is configured to compare the light flow values ​​detected by the corresponding first sensor pixels (211) individually with respectively predefinable threshold values ​​and to reduce the light flow of the corresponding luminous pixel group (110a, 110b, 110c, 110d) when the threshold value is exceeded.

Description

[0001] The invention relates to a lighting device for a motor vehicle headlight for detecting and selectively obscuring light-emitting objects located in front of the lighting device with a segmented light distribution, the lighting device comprising the following components:

[0002] a light generating unit comprising a plurality of luminous pixels arranged in rows and columns in a luminous pixel array, wherein the light generating unit is configured to radiate a segmented light distribution in a main radiation direction in front of the lighting device,

[0003] a light sensor arrangement for detecting light from an object radiating light, comprising a first light sensor having a plurality of first sensor pixels arranged in a row, wherein the first sensor pixels are configured to detect a light flux of light incident on the first light sensor in a wavelength range of 380 nm to 780 nm,

[0004] A control unit is connected to the light generating unit and the light sensor arrangement and is configured to actuate the light generating unit to generate a segmented light distribution.

[0005] Furthermore, the invention relates to a motor vehicle headlight having at least one lighting device according to the invention.

[0006] An ADB system or an ADB vehicle headlight typically comprises an environment recording device (such as a camera or a camera system) and a vehicle headlight system. A well-known function of an ADB system is that the vehicle headlight system controls the vehicle headlights based on information provided to the vehicle headlight system by the environment recording device, for example by blanking or dimming corresponding areas of the light distribution generated by the vehicle headlights.

[0007] In the case of matrix-type ADB systems, the blacked-out areas are usually produced by switching off / dimming the corresponding light sources. The above-described lighting device for a motor vehicle headlight is preferably a matrix-type device.

[0008] A disadvantage of ADB systems, particularly from the perspective of vehicle headlight manufacturers, is that the environment recording device is structurally separate from the vehicle headlight system. The aforementioned important components of an ADB system often come from different manufacturers. Vehicle headlight systems typically have interfaces designed to input information provided by the environment recording device. This results, for example, in vehicle headlight manufacturers relying on information provided by externally supplied, for example, purchased, environment recording devices when configuring dimming scenarios. This information is typically in the form of so-called object lists. The environment recording device generates such object lists by, for example, using the aforementioned camera system to record images within the camera system's field of view ("Field of View"), where the field of view is preferably adapted to the relevant area in front of the vehicle, and evaluating these images using a computing unit within the environment recording device. Adapting the field of view to the relevant area means that the field of view has a sufficiently large aperture angle to detect at least the roadway in front of the vehicle. The computing unit outputs the aforementioned object list. Vehicles such as trucks, passenger cars, motorcycles, etc., for example, may appear as objects in such lists. Coordinates in the camera system's coordinate system are typically assigned to each individual object. The origin coordinate system therefore usually has its origin approximately at the rear side of the rearview mirror in the interior of the motor vehicle, since the camera of the camera system is usually arranged there.

[0009] If the control system now receives such an object list as input, it calculates the resulting light pattern based on the object list. To do this, the coordinates of the objects must first be converted into the coordinate system of the vehicle headlights. This requires relatively high computational effort, causes considerable time delays, and is a potential source of error. Furthermore, additional errors often occur due to incorrect object recognition by the computing unit of the surroundings recording device. A not uncommon error of this type is confusion between a truck traveling ahead and two motorcycles—the computing unit identifies the truck's taillights in a first recording, while interpreting the same taillights as two motorcycles in a subsequent second recording, for example. Since the vehicle headlight system's control system cannot influence this data, the area between the taillights can periodically brighten and dim, depending on whether the taillights in the object list are assigned to the two motorcycles (illuminated) or the truck (obscured). In some cases, this can cause the driver to be dazzled by light reflections.

[0010] Furthermore, situations can arise where, for example, an oncoming multi-lane vehicle with two spaced-apart vehicle headlights is perceived by the sensor unit only as two independent light sources, wherein two sensor pixels of the light sensor are each "activated" due to exceeding a predefinable luminous flux threshold, with an inactivated sensor pixel located between the two activated sensor pixels. This would cause the control unit to reduce the luminous flux of only the luminous pixel groups assigned to the two "activated" sensor pixels, thereby blinding the driver of the oncoming vehicle.

[0011] The object of the present invention is to provide an improved lighting device.

[0012] This object is achieved in that the light generating unit, the light sensor arrangement and the control unit are arranged together on a base carrier and together with the base carrier form a structural unit.

[0013] The luminous pixels of the luminous pixel array are divided into a plurality of luminous pixel groups, wherein the luminous pixel groups are each capable of generating a segment of a segmented light distribution with a light solid angle, wherein each luminous pixel group includes at least one luminous pixel,

[0014] and wherein the sensor pixels of the plurality of first sensor pixels are each capable of detecting light at a detection solid angle assigned to the respective sensor pixel and are respectively assigned to a group of luminous pixels, wherein a different detection solid angle is assigned to each sensor pixel of the plurality of first sensor pixels, wherein the detection solid angles substantially adjoin one another and form a total detection solid angle, wherein light of an object radiating light can be identified at the total detection solid angle, and wherein light incident on each first sensor pixel can be detected as an optical flow value assigned to the respective first sensor pixel,

[0015] wherein the detection solid angle detectable by the first sensor pixel is substantially the same as the luminous solid angle of the respectively assigned luminous pixel group,

[0016] The lighting device comprises a laser beam generating device for measuring the distance to an object located in front of the lighting device, the laser beam generating device being configured to radiate at least one laser beam in a wavelength range of 780 nm to 1 mm in front of the lighting device and to modify the at least one laser beam in a horizontal orientation.

[0017] wherein the light sensor arrangement additionally comprises a second light sensor comprising a plurality of second sensor pixels arranged in a row, wherein the second sensor pixels are configured to detect a light flux of light incident on the second light sensor and within the wavelength range of the laser beam of the laser beam generating unit,

[0018] wherein the control unit is configured to compare the luminous flow values ​​detected by the respective first sensor pixels individually with respectively predefinable threshold values ​​and to reduce the luminous flow of the corresponding luminous pixel group if the threshold value is exceeded,

[0019] wherein, if an exceeding of the threshold value is determined in two detection solid angles and a detection solid angle not exceeding the threshold value is determined in at least one detection solid angle between the two detection solid angles, the control unit is configured to derive an estimated object width corresponding to the number of first sensor pixels from the two detection solid angles exceeding the threshold value and the detection solid angle lying between the two detection solid angles, and to compare the estimated object width with an actual object width, the actual object width being determinable by the second light sensor using a run-time measurement of a laser beam reflected at the object,

[0020] wherein if the estimated object width corresponds to the actual object width, the control device is configured to reduce the optical flow of the corresponding luminous pixel group assigned to the first sensor pixel of the estimated object width despite the lack of a detection solid angle exceeding the threshold value between the detection solid angles exceeding the threshold value,

[0021] and / or

[0022] If an exceeding of the threshold value is determined in the detection solid angle, the control unit is configured to derive an estimated object width, which corresponds to the first sensor pixel exceeding the threshold value, and to compare it with an actual object width, the actual object width being determinable by the second light sensor by means of a run-time measurement and / or triangulation of the laser beam reflected at the object, wherein the actual object width corresponds to the number of second sensor pixels that detect light of the laser beam reflected at the object, wherein if

[0023] If the actual object width is greater than the estimated object width, the control device is set up to reduce the optical flow of the following group of luminous pixels, namely, the group of luminous pixels corresponding to the first sensor pixel that exceeds the threshold value and those first sensor pixels whose detection solid angle is directly adjacent to the detection solid angle that determines the excess of the threshold value or corresponding to the first sensor pixel corresponding to the second sensor pixel that determines the actual object width.

[0024] In the case of triangulation, the distance between the laser beam generating unit and the individual second sensor pixels of the second light sensor is known, wherein the angle at which the laser beam is emitted over at least one row thereof is also known and can be determined or retrieved by the control unit. Furthermore, the angle of the laser beam reflected by the object is also detectable, for example, by the corresponding second sensor pixels of the second light sensor, and is thus known, so that the distance to the area of ​​the object impinged upon and reflected by the laser beam can be determined or calculated by the control unit.

[0025] It should be noted that the actual object width may correspond to the number of second sensor pixels that detect light from the laser beam reflected from the object. Here, the second sensor pixels correspond to the first sensor pixels, wherein the number of first sensor pixels and the number of second sensor pixels are the same, and exactly one second sensor pixel is assigned to each first sensor pixel. Each second sensor pixel is then also assigned the corresponding luminous pixel group of the corresponding first sensor pixel.

[0026] The actual object width or object size of an object located in front of the lighting device can also be determined or inferred from this, since the object width or object size can be determined by sweeping or scanning a plurality of points of the object with a laser beam that can be varied in horizontal orientation.

[0027] It can be provided that the distance of an object from the lighting device can be determined. A particularly simple construction results if the base carrier is designed in one piece.

[0028] It can be provided that the base carrier has a heat sink, on which the light sensor, the lighting device and the control unit are arranged.

[0029] Furthermore, it can be advantageously provided that the base carrier has a printed circuit board, wherein the light sensor, the luminous means and the control unit are arranged on the printed circuit board. It should be noted that in this case, the light sensor, the luminous means and the control unit are also arranged on the base carrier but do not contact the base carrier.

[0030] A particularly advantageous variant results when multiple sensor pixels are grouped in the form of "active pixel sensors" (APS-CMOS) manufactured using CMOS technology, in which some peripheral circuits for the functions of the photodiode (A / D conversion, readout timing, amplification) are implemented directly on the same semiconductor component.

[0031] In a particularly advantageous variant, it can be provided that the luminous pixel, in particular each luminous pixel, is designed as at least one LED light source.

[0032] Furthermore, it is conceivable that the control unit comprises at least two, preferably exactly two, microcontrollers which are connected to one another for communication, wherein preferably the first microcontroller is configured to control the light sensor and preferably the second microcontroller is configured to control the lighting device.

[0033] It can be advantageous if at least one of the microcontrollers is directly connected to the light-sensitive sensor element, for example, is located immediately downstream of the light-sensitive sensor element in the same electronics housing ("chip package"), and performs sensor-related data preprocessing. This preprocessing includes, for example, comparing the measured values ​​between pixels with each other and with stored values, or selecting and manipulating stored evaluation characteristics (readout rate, exposure time, amplification).

[0034] It can be provided that a sensor pixel of the plurality of second sensor pixels is respectively capable of detecting light with a recognition solid angle assigned to the corresponding sensor pixel and is respectively assigned to a sensor pixel of the plurality of first sensor pixels, wherein the recognition solid angle of the second sensor pixel is substantially identical to the corresponding detection solid angle of the first sensor pixel.

[0035] It can be provided that the laser beam of the laser beam generating device can be emitted in the manner of at least one horizontal line scan in front of the lighting device.

[0036] Laser scanning, also called laser sweeping, means sweeping a surface or a body with a laser beam in a line or grid-like manner in order to measure, process or image the surface or body.

[0037] It can be provided that the laser beam can be emitted in at least two rows, preferably in at least four rows, wherein the laser beam can be emitted in each case in a scanning manner in only one of the at least two rows.

[0038] It can also be provided that a plurality of laser beam generating units are included, which alternately scan or emit lines at different vertical distances.

[0039] It may be provided that the number of first sensor pixels is equal to the number of second sensor pixels.

[0040] It can be provided that the control unit is designed to determine the distance of a light-emitting object located in front of the lighting device from the lighting device by means of a run-time measurement using the second light sensor.

[0041] It may be provided that the segmented light distribution is designed as a segmented high-beam light distribution.

[0042] It can be provided that the lighting device comprises expansion optics for expanding the laser beam of the laser generating unit.

[0043] It can be provided that the expansion optical system is designed as a cylindrical lens, which is set up to expand the laser beam of the laser beam generating device in the vertical direction.

[0044] This should cover a larger area in the vertical direction.

[0045] It can be provided that, in the installed position of the lighting device, the first sensor pixels and the second sensor pixels are arranged one above the other in each case in a row on a common circuit board, and it is particularly preferred that the first sensor pixels and the second sensor pixels are arranged on the same sensor chip, which is manufactured, for example, in CMOS technology, and wherein the lighting device includes a sensor lens assigned to the first sensor pixel and the second sensor pixel.

[0046] It may be provided that the lens is designed as a cylindrical lens.

[0047] The common sensor lens is asymmetrical and is designed, for example, as a cylindrical lens in order to ensure local resolution in the horizontal direction. However, local resolution is not guaranteed in the vertical area. One sensor pixel observes the entire vertical area in a specific horizontal direction.

[0048] This ensures good horizontal resolution, but not vertical resolution. The cylindrical lens allows coverage of a certain vertical area; the vertical resolution for distance measurement is achieved by at least one laser emitter of the laser beam generating device, which can also emit alternately in vertically superimposed rows.

[0049] It should be noted that when there are multiple rows or row areas that are alternately scanned by the laser beam, they are adjacent to each other and do not overlap.

[0050] It can be provided that the first sensor pixel has a first filter which is designed to transmit light only in the wavelength range of 380 nm to 780 nm, wherein the second sensor pixel has a second filter which is designed to transmit light only in the wavelength range of 780 nm to 12 μm.

[0051] It can be provided that at least one laser beam of the laser beam arrangement is modulated.

[0052] This object is also achieved by a motor vehicle headlight having at least one lighting device according to the invention.

[0053] The present invention will be described in more detail below with reference to the accompanying exemplary drawings.

[0054] Figure 1An exemplary lighting device is shown, comprising a light generating unit having a plurality of light-emitting pixel groups, a light sensor device having a first light sensor and a second light sensor, a laser beam generating device, and a control unit operable to control the light generating unit and the light sensor device.

[0055] Figure 2 An exemplary diagram shows a laser beam which can be generated by a laser beam generating device, said laser beam being able to be varied in its horizontal orientation in a plurality of lines,

[0056] Figure 3 shows an exemplary driving situation with oncoming vehicles,

[0057] Figure 4 Shown in view of Figure 3 The driving conditions have a corresponding control over the sensor pixels of the first light sensor and the second light sensor and a corresponding control over the light pixel groups.

[0058] Figure 1 An exemplary lighting device 10 for a motor vehicle headlight is shown for detecting and selectively blocking a light-emitting object 20 located in front of the lighting device 10 with a segmented light distribution, for example a high-beam beam distribution. The lighting device 10 comprises a light generating unit 100 having a plurality of luminous pixels 110 arranged in rows and columns in a luminous pixel array, wherein the light generating unit 100 is configured to radiate a segmented light distribution in a main radiation direction in front of the lighting device 10.

[0059] Furthermore, the lighting device 10 includes a light sensor device 200 for detecting light from an object 20 radiating light, the light sensor device having a first light sensor 210 having a plurality of first sensor pixels 211 arranged in a row, wherein the first sensor pixels 211 are configured to detect a light flux of light in a wavelength range of 380 nm to 780 nm, i.e., visible light, incident on the first light sensor 210.

[0060] The lighting device 10 further includes a control unit 300, which is connected to the light generating unit 100 and the light sensor device 200 and is configured to control the light generating unit 100 to generate a segmented light distribution, wherein the light generating unit 100, the light sensor device 200 and the control unit 300 are arranged together on a base carrier 50 and together with the base carrier 50 form a structural unit.

[0061] The luminescent pixels 110 in the luminescent pixel array are divided into a plurality of luminescent pixel groups 110a, 110b, 110c, and 110d, wherein each luminescent pixel group includes at least one luminescent pixel 110, and wherein the luminescent pixel groups 110a, 110b, 110c, and 110d can generate segments of a segmented light distribution at luminescent solid angles LRa, LRb, LRc, and LRd, respectively, as in Figure 3 This can be seen schematically in .

[0062] The sensor pixels of the plurality of first sensor pixels 211 of the first light sensor 210 can respectively detect light at the detection solid angles DRa, DRb, DRc, DRd assigned to the corresponding sensor pixels 211 (also in Figure 3 ) and are respectively assigned to the luminous pixel groups 110a, 110b, 110c, 110d, wherein a different detection solid angle is assigned to each of the plurality of first sensor pixels 211.

[0063] The detection solid angles DRa, DRb, DRc, DRd are essentially adjacent to one another and form a total detection solid angle with which light from an object 20 radiating light can be identified, wherein the light incident on each first sensor pixel 211 can be detected as an optical flow value assigned to the corresponding first sensor pixel 211.

[0064] The detection solid angles DRa, DRb, DRc, DRd detectable by the first sensor pixel 211 are substantially the same as the luminous solid angles LRa, LRb, LRc, LRd of the respectively assigned luminous pixel groups 110a, 110b, 110c, 110d.

[0065] In order to measure the distance or size of an object 20 located in front of the lighting device 10, the lighting device 10 includes a laser beam generating device 400, which is configured to radiate at least one laser beam 410 in a wavelength range of 780 nm to 1 mm in front of the lighting device 10 and to change the at least one laser beam 410 in a horizontal orientation.

[0066] The laser beam 410 of the laser beam generating device 400 can be determined in such a way that it is scanned in front of the lighting device 10 in at least one horizontal line. Figure 2 In the example shown, four rows are shown.

[0067] Additionally, light sensor device 200 includes a second light sensor 220, which includes a plurality of second sensor pixels 221 arranged in a row, wherein second sensor pixels 221 are configured to detect a light flux incident on second light sensor 220 within the wavelength range of laser beam 410 of laser generating unit 400. A sensor pixel in plurality of second sensor pixels 221 can each detect light at an identification solid angle ERa, ERb, ERc, ERd assigned to the respective sensor pixel 221, and is each assigned to a respective one of plurality of first sensor pixels 211, wherein the identification solid angle of the second sensor pixel 221 is substantially identical to the corresponding detection solid angle DRa, DRb, DRc, DRd of the first sensor pixel 211. The number of first sensor pixels 211 corresponds to the number of second sensor pixels 221.

[0068] The control unit 300 is furthermore configured to compare the luminous flux values ​​detected by the respective first sensor pixels 211 individually with respectively predefinable threshold values ​​and to reduce the luminous flux of the corresponding luminous pixel group 110a, 110b, 110c, 110d if the threshold value is exceeded.

[0069] If the threshold value is exceeded in two detection solid angles DRb, DRd and the detection solid angle DRc is not exceeded in at least one detection solid angle between the two detection solid angles DRb, DRd, as in Figure 3 and 4 As shown in the example shown in , the control unit 300 is set up to derive an estimated object width of the oncoming vehicle 20, and to compare the estimated object width, which corresponds to the number of first sensor pixels 211 consisting of two detection solid angles DRb, DRd and a detection solid angle DRc located between the two detection solid angles, and which exceeds a threshold value in the case of the two detection solid angles DRb, DRd, with the actual object width, which can be determined by the second light sensor 220 by means of runtime measurement and / or triangulation of the laser beam 410 reflected at the vehicle 20.

[0070] If the estimated object width now corresponds to the actual object width, the control device 300 is set up to reduce the optical flow of the corresponding luminous pixel groups 110b, 110c, 110d of the first sensor pixels 211 assigned to the estimated object width despite the lack of exceeding the threshold value in the detection solid angle DRc between the detection solid angles DRb, DRd, in which the threshold value is exceeded.

[0071] Furthermore, control unit 300 is configured to determine the distance of light-emitting object 20 located in front of lighting device 10 from lighting device 10 by means of second light sensor 220 by means of runtime measurement and / or triangulation.

[0072] Furthermore, the lighting device 10 may include an expansion lens for expanding the laser beam 410 of the laser generating unit 400 , wherein the expansion lens is configured as a cylindrical lens configured to expand the laser beam 410 of the laser beam generating device 400 in the vertical direction.

[0073] In the case of triangulation, the distance between laser generating unit 400 and the individual second sensor pixels 221 of second light sensor 220 is known, wherein the angle at which the laser beam is emitted in at least one row thereof is also known and can be determined or retrieved by control unit 300. Furthermore, the angle of the laser beam reflected at the object can also be detected, for example, by the corresponding second sensor pixels 221 of second light sensor 220 and thus known, whereby the distance of the area of ​​the object that is struck and reflected by the laser beam can be determined or calculated by the control unit.

[0074] Furthermore, it can be provided that, when a threshold value is exceeded in the detection solid angles DRa, DRb, DRc, the control unit is set up to derive an estimated object width and compare it with the actual object width, the estimated object width corresponding to the first sensor pixel 211 exceeding the threshold value, the actual object width being determinable by the second light sensor 220 by means of a run-time measurement and / or triangulation of the laser beam 410 reflected at the object 20, wherein the actual object width corresponds to the number of second sensor pixels in the case of the second pixel sensor, the light of the laser beam reflected at the object being detected, wherein, if the actual object width is greater than the estimated object width, the control device is set up to reduce the optical flow of the following luminous pixel groups 110a, 110b, 110c, i.e., the luminous pixel groups corresponding to the first sensor pixel exceeding the threshold value and those first sensor pixels 211 whose detection solid angle is directly adjacent to the detection solid angle in which the threshold value is exceeded or to the first sensor pixels corresponding to the second sensor pixels determining the actual object width.

[0075] Reference Signs List

[0076] Lighting fixtures... 10

[0077] Objects, vehicles... 20

[0078] Basic carrier... 50

[0079] Light generating unit... 100

[0080] Luminous Pixels... 110

[0081] Luminous pixel groups 110a, 110b, 110c, 110d

[0082] Light sensor device...200

[0083] First light sensor...210

[0084] First sensor pixel 211

[0085] Second light sensor...220

[0086] Second sensor pixels...221

[0087] Control unit...300

[0088] Laser generation unit...400

[0089] Laser beam... 410

[0090] Illumination solid angle… LRa, LRb, LRc, LRd

[0091] Detection solid angle… DRa, DRb, DRc, DRd

[0092] Identify the solid angles... ERa, ERb, ERc, Erd.

Claims

1. A lighting device (10) for a motor vehicle headlight, the lighting device (10) being used to detect and selectively block a light-emitting object (20) located in front of the lighting device (10) with a segmented light distribution, the lighting device (10) comprising the following components: - a light generating unit (100), comprising a plurality of luminous pixels (110), the luminous pixels (110) being arranged in a luminous pixel array in one or more rows and columns, wherein the light generating unit (100) is configured to The front emits a segmented light distribution in the main radiation direction, - a light sensor device (200) for detecting light of an object (20) radiating light, comprising a first light sensor (210) having a plurality of first sensor pixels (211) arranged in a row, wherein the first sensor pixels (211) are configured to detect a light flux of light incident on the first light sensor (210) in a wavelength range of 380 nm to 780 nm, a control unit (300) connected to the light generating unit (100) and the light sensor device (200) and configured to control the light generating unit (100) to generate a segmented light distribution, It is characterized by: The light generating unit (100), the light sensor device (200) and the control unit (300) are arranged together on a base carrier (50) and together with the base carrier (50) form a structural unit. The luminous pixels (110) of the luminous pixel array are divided into a plurality of luminous pixel groups (110a, 110b, 110c, 110d), wherein the luminous pixel groups (110a, 110b, 110c, 110d) are respectively capable of generating segments of the segmented light distribution at luminous solid angles (LRa, LRb, LRc, LRd), wherein each luminous pixel group comprises at least one luminous pixel (110), and wherein the sensor pixels of the plurality of first sensor pixels (211) are respectively capable of detecting light at a detection solid angle (DRa, DRb, DRc, DRd) assigned to the respective sensor pixel (211) and are respectively assigned to the luminous pixel groups (110a, 110b, 110c, 110d), wherein a different detection solid angle is assigned to each sensor pixel of the plurality of first sensor pixels (211), wherein the detection solid angles (DRa, DRb, DRc, DRd) are substantially adjacent to each other and constitute a total detection solid angle at which light of an object (20) radiating light can be identified, and wherein light incident on each first sensor pixel (211) can be detected as an optical flow value assigned to the respective first sensor pixel (211), wherein the detection solid angle (DRa, DRb, DRc, DRd) detectable by the first sensor pixel (211) is substantially the same as the luminous solid angle (LRa, LRb, LRc, LRd) of the respectively assigned luminous pixel group (110a, 110b, 100c, 110d), The lighting device (10) has a laser beam generating device (400) for measuring the distance of an object (20) located in front of the lighting device (10), wherein the laser beam generating device is configured to radiate at least one laser beam (410) in a wavelength range of 780 nm to 12 μm in front of the lighting device (10) and to change the horizontal orientation of the at least one laser beam (410). wherein the light sensor device (200) additionally comprises a second light sensor (220), the second light sensor (220) comprising a plurality of second sensor pixels (221) arranged in a row, wherein the second sensor pixels (221) are configured to detect a light flux of light incident on the second light sensor (220) within the wavelength range of the laser beam (410) of the laser beam generating device (400), wherein the control unit (300) is configured to compare the light flow values ​​detected by the respective first sensor pixels (211) individually with respectively predefinable threshold values ​​and to reduce the light flow of the corresponding luminous pixel group (110a, 110b, 110c, 110d) when the threshold value is exceeded, wherein, when an exceeding of the threshold value is determined in two detection solid angles (Dra, DRc) and a detection solid angle (DRb) not exceeding the threshold value is determined in at least one detection solid angle between the two detection solid angles (Dra, DRc), the control unit (300) is configured to derive an estimated object width, which corresponds to the number of first sensor pixels (211) consisting of the two detection solid angles (Dra, DRc) exceeding the threshold value and the detection solid angle (DRc) lying between the two detection solid angles, and to compare it with an actual object width, the actual object width being determinable by the second light sensor (220) by means of a runtime measurement and / or triangulation of a laser beam (410) reflected at the object (20), Wherein, if the estimated object width corresponds to the actual object width, the control unit (300) is configured to reduce the optical flow of the corresponding luminous pixel group (110a, 110b, 110c) of the first sensor pixel (211) assigned to the estimated object width despite the lack of an angle exceeding the threshold in the detection solid angle (DRb) between the detection solid angles (Dra, DRc) exceeding the threshold.

2. The lighting device according to claim 1, characterized in that If an exceeding of the threshold value is determined in the detection solid angle (DRa, DRb, DRc), the control unit is configured to derive an estimated object width, which corresponds to the first sensor pixel (211) exceeding the threshold value, and compare it with the actual object width, the actual object width being determinable by the second light sensor (220) by means of a run-time measurement and / or triangulation of the laser beam (410) reflected at the object (20), wherein the actual object width corresponds to the number of second sensor pixels which detect the light of the laser beam reflected at the object, wherein if If the actual object width is greater than the estimated object width, the control unit is configured to reduce the optical flow of the following groups of luminous pixels (110a, 110b, 110c), namely, the groups of luminous pixels corresponding to the first sensor pixel exceeding the threshold value and those first sensor pixels (211) whose detection solid angle is directly adjacent to the detection solid angle determined to exceed the threshold value or corresponding to the first sensor pixel corresponding to the second sensor pixel determining the actual object width.

3. The lighting device according to claim 1, wherein The sensor pixels of the plurality of second sensor pixels (221) are each capable of detecting light at an identification solid angle (ERa, ERb, ERc, ERd) assigned to the corresponding sensor pixel (221), and are respectively assigned to sensor pixels among the plurality of first sensor pixels (211), wherein the identification solid angle of the second sensor pixel (221) is substantially the same as the corresponding detection solid angle (DRa, DRb, DRc, DRd) of the first sensor pixel (211).

4. The lighting device according to any one of claims 1 to 3, characterized in that At least one laser beam (410) of the laser beam generating device (400) can be emitted in front of the lighting device (10) in a manner of at least one horizontal line scanning.

5. The lighting device according to claim 4, characterized in that The laser beam (410) can be emitted alternately in at least two rows, wherein the laser beam (410) can be emitted in a scanning manner in only one of the at least two rows.

6. The lighting device according to any one of claims 1 to 3, characterized in that: The number of the first sensor pixels (211) is equal to the number of the second sensor pixels (221).

7. The lighting device according to any one of claims 1 to 3, characterized in that: The control unit (300) is configured to determine the distance of a light-emitting object (20) located in front of the lighting device (10) from the lighting device (10) by means of a run-time measurement and / or triangulation using the second light sensor (220).

8. The lighting device according to any one of claims 1 to 3, characterized in that: The segmented light distribution is designed as a segmented high-beam light distribution.

9. The lighting device according to any one of claims 1 to 3, characterized in that: The lighting device (10) comprises an expansion optical element for expanding the laser beam (410) of the laser beam generating device (400).

10. The lighting device according to claim 9, characterized in that The expansion optical element is designed as a cylindrical lens, which is configured to expand the laser beam (410) of the laser beam generating device (400) in the vertical direction.

11. The lighting device according to any one of claims 1 to 3, characterized in that: In the installed position of the lighting device, the first sensor pixels (211) and the second sensor pixels (221) are arranged one above the other in a row on a common circuit board, wherein the lighting device comprises sensor lenses assigned to the first sensor pixels and the second sensor pixels (211, 221).

12. The lighting device according to claim 11, characterized in that The first sensor pixels and the second sensor pixels are arranged on the same sensor chip.

13. The lighting device according to claim 11, characterized in that The sensor lens is designed as a cylindrical lens.

14. The lighting device according to claim 11, characterized in that The first sensor pixel (211) has a first filter which is designed to transmit light only in the wavelength range of 380 nm to 780 nm, wherein the second sensor pixel (221) has a second filter which is designed to transmit light only in the wavelength range of 780 nm to 12 μm.

15. The lighting device according to any one of claims 1 to 3, characterized in that: At least one laser beam of the laser beam generating device (400) is modulated.

16. A motor vehicle headlamp comprising at least one lighting device according to any one of claims 1 to 15.

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