B60Q2200/38

Method for correcting a light pattern, automotive lighting device and automotive lighting assembly
11761850 · 2023-09-19 · ·

A method for correcting a first light pattern provided by a lighting device with a matrix of light sources. The method includes steps of providing some resolution data of the light sources, simulating a test map of the light pattern using the resolution data, and simulating distortion maps of the test map. Each distortion map is associated to a distortion factor. Also included is obtaining a real distorted light pattern, comparing the real distorted light pattern with the distortion maps, finding a distortion map which is the most similar to the real distorted map and applying a correction factor to correct the real distorted light pattern, thus obtaining a corrected light pattern. The correction factor is related to the distortion factor of the distortion map which is the most similar to the real distorted map.

Method for calibrating a position of a matrix headlamp of a motor vehicle, control device, and motor vehicle
11807156 · 2023-11-07 · ·

The present disclosure relates to a method for calibrating a position of a matrix headlamp of a motor vehicle by means of a camera of the motor vehicle, wherein the matrix headlamp has a plurality of segments controllable independently of one another for light emission. At least one first image of a sign is recorded by means of the camera, a location area in which the sign is arranged is determined, illuminance of a first segment is changed, at least one second image is recorded and checked, whether a change in a glare effect detected on the basis of the at least one recorded second image has occurred, and if so, the position of the matrix headlamp is calibrated depending on the first segment and position information derived from the location area.

ILLUMINATION ARRANGEMENT WITH AN ILLUMINATION MODULE AND A PERIPHERAL MODULE CONNECTED TO THE SAME

An illumination arrangement includes with a control unit, an illumination module connected to the control unit via a bidirectional first channel that features an LED matrix for generating light, and a peripheral module connected to the illumination module via a second channel. The control unit can be used to generate data for controlling the illumination module and for controlling the peripheral module. The data for controlling the illumination module and data for controlling the peripheral module can be transferred to the illumination module via the first channel. The data for controlling the peripheral module can be transferred from the illumination module to the peripheral module via the second channel. The second channel is a bidirectional channel via which data can be transferred from the peripheral module to the illumination module that, after being received by the illumination module, can be transferred to the control unit via the first channel.

Method and system for avoiding pixels errors in high-definition headlamps

A high-definition vehicular headlamp has a light module configured to produce a matrix of light-emitting points each of which has a coordinate pair. The headlamp generates a light image in front of the vehicle, and the light image is divided into a matrix of pixels that correspond respectively to the light-emitting points of the light module. A specified partial image content is generated in a partial region of the light image. The partial image content acts upon a set of coordinate pairs of light-emitting points, including coordinate pairs having defective light-emitting points that could cause pixel errors. A displacement vector is formed by comparing coordinate pairs of defective light-emitting points with the set of coordinate pairs of the light-emitting points on which the partial image content acts, and the partial image content is reproduced in the partial region of the light image that has been displaced by the displacement vector.

METHOD AND SYSTEM FOR AVOIDING PIXELS ERRORS IN HIGH-DEFINITION HEADLAMPS

A high-definition vehicular headlamp has a light module configured to produce a matrix of light-emitting points each of which has a coordinate pair. The headlamp generates a light image in front of the vehicle, and the light image is divided into a matrix of pixels that correspond respectively to the light-emitting points of the light module. A specified partial image content is generated in a partial region of the light image. The partial image content acts upon a set of coordinate pairs of light-emitting points, including coordinate pairs having defective light-emitting points that could cause pixel errors. A displacement vector is formed by comparing coordinate pairs of defective light-emitting points with the set of coordinate pairs of the light-emitting points on which the partial image content acts, and the partial image content is reproduced in the partial region of the light image that has been displaced by the displacement vector.

METHOD FOR CORRECTING A LIGHT PATTERN, AUTOMOTIVE LIGHTING DEVICE AND AUTOMOTIVE LIGHTING ASSEMBLY
20220107241 · 2022-04-07 · ·

A method for correcting a first light pattern provided by a lighting device with a matrix of light sources. The method includes steps of providing some resolution data of the light sources, simulating a test map of the light pattern using the resolution data, and simulating distortion maps of the test map. Each distortion map is associated to a distortion factor. Also included is obtaining a real distorted light pattern, comparing the real distorted light pattern with the distortion maps, finding a distortion map which is the most similar to the real distorted map and applying a correction factor to correct the real distorted light pattern, thus obtaining a corrected light pattern. The correction factor is related to the distortion factor of the distortion map which is the most similar to the real distorted map.

LIGHTING DEVICE FOR A VEHICLE

An illuminating apparatus for a vehicle, in particular a headlamp for a vehicle, comprises a housing, at least one light module for generating a light function, a supporting frame, which is pivotably arranged in the housing. The light module is mounted on the supporting frame such that it is pivoted along with the pivoting of the supporting frame. A manually actuatable adjuster pivots the supporting frame around a horizontal axis. The adjuster has a setting spindle, which is rotatable around its longitudinal axis and is used to pivot the supporting frame, a servomotor including an adjusting element, which is linearly displaceable in a displacement direction for the purpose of implementing an automatic headlamp leveling control. The setting spindle and the adjusting element being connected to each other in such a way that a movement of the adjusting element in the displacement direction effectuates a movement of the setting spindle.

Light control systems and methods
10953785 · 2021-03-23 ·

Provided is a beam-steering mechanism, comprising a lens and a light source positioned in a focal plane of the lens. One of the light source and the lens moves relative to the other of the light source and the lens. The light source outputs a light beam at the lens which forms an illumination spot on a surface from the light beam. The illumination spot moves in a direction in response to a movement of one of the light source and the lens.

METHOD FOR CALIBRATING A POSITION OF A MATRIX HEADLAMP OF A MOTOR VEHICLE, CONTROL DEVICE, AND MOTOR VEHICLE
20210016705 · 2021-01-21 · ·

The present disclosure relates to a method for calibrating a position of a matrix headlamp of a motor vehicle by means of a camera of the motor vehicle, wherein the matrix headlamp has a plurality of segments controllable independently of one another for light emission. At least one first image of a sign is recorded by means of the camera, a location area in which the sign is arranged is determined, illuminance of a first segment is changed, at least one second image is recorded and checked, whether a change in a glare effect detected on the basis of the at least one recorded second image has occurred, and if so, the position of the matrix headlamp is calibrated depending on the first segment and position information derived from the location area.

Method for calibrating an electromagnetic radiation-emitting device using a sensor unit

A method for calibrating an electromagnetic radiation-emitting device configured to emit electromagnetic radiation using a sensor configured to detect electromagnetic radiation emitted by the electromagnetic radiation-emitting device includes projecting a pattern onto a projection surface by way of the emitted electromagnetic radiation, acquiring an image of the projection of the pattern using the sensor, and calculating at least one trajectory in an image plane of the sensor that describes a propagation of the emitted electromagnetic radiation based on a position of a characteristic feature of the pattern in the image and on a further item of information. The method further includes calculating a specific feature along an associated trajectory and calculating an incorrect position of the device by evaluating a geometric correspondence relationship between points in a world coordinate system and their image points in the image plane of the sensor.