G01M11/065

Method for Photometric Characterization of the Optical Radiation Characteristics of Light Sources and Radiation Sources
20220018709 · 2022-01-20 ·

The present disclosure relates to a method for photometrical charting of a light source (Q, 3) clamped within a positioning device (1) and stationary relative to an object coordinate system (T) by means of a luminance density measurement camera (4) arranged stationary relative to a world coordinate system (W), wherein the light source (Q, 3) is moved between a first actual measurement position (P1′) and at least one further actual measurement position (P2′ to P5′) along a kinematic chain of the positioning device (1) within the world coordinate system (W), wherein a luminance density measurement image (81 to 85) describing the spatial distribution of a photometric characteristic within a measurement surface is recorded by means of the luminance density measurement camera (4) in each actual measurement position (P1′ to P5′) with the light source (Q, 3) turned on, and wherein the position and/or orientation of the object coordinate system (T) relative to the world coordinate system (W) is recorded in each actual measurement position (P1′ to P5′) in direct reference to the world coordinate system (W) without reference to the kinematic chain of the positioning device (1). Moreover, the present disclosure relates to the use of such a method for photometric charting of a headlight (3).

Apparatus and method for controlling intelligent headlamp
11135964 · 2021-10-05 · ·

An apparatus for controlling an intelligent headlamp may include: a capturing unit configured to capture a forward image of a vehicle; a lamp driving unit configured to independently drive LEDs of a headlamp configured as a matrix LED; a storage unit configured to store an initial origin point, a changed origin point and an offset for adjusting the position of the headlamp; and a control unit configured to control the lamp driving unit to turn on the headlamp, detect an origin point from the forward image inputted from the capturing unit, set the offset for adjusting the position of the headlamp by comparing the detected origin point to the initial origin point or the changed origin point stored in the storage unit, and store a changed origin point, newly set based on the detected origin point, and the offset in the storage unit.

High-volume, long-range headlamp aiming

A system for aiming a headlamp of a vehicle includes a displaceable aiming surface and an imaging system. The imaging system includes a translatable aim box carrying at least one headlamp imager oriented to capture images of a single headlamp and/or one or more vehicle features adjacent to the single headlamp. At least one fixed imager is oriented to capture one or more images of the displaceable aiming surface. The translatable aim box may be configured to translate between the single headlamp and another headlamp. One or more computing devices are configured to perform methods for headlamp aim correction using the described system. Methods for headlamp aim correction are described.

CALIBRATION OF A LIGHT-FIELD GENERATION DEVICE

Disclosed is a method for calibrating a light field generating device, which has a display unit with pixels for generating light and a lens field unit with optical lenses for deflecting the light generated by the display unit, and a control unit for controlling the display unit, each lens of the lens field unit being assigned a plurality of pixels of the display unit. Also disclosed are a light field generating device based on the above method and an illumination device having the disclosed light field generation device.

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.

APPARATUS AND METHOD FOR CONTROLLING INTELLIGENT HEADLAMP
20200398736 · 2020-12-24 ·

An apparatus for controlling an intelligent headlamp may include: a capturing unit configured to capture a forward image of a vehicle; a lamp driving unit configured to independently drive LEDs of a headlamp configured as a matrix LED; a storage unit configured to store an initial origin point, a changed origin point and an offset for adjusting the position of the headlamp; and a control unit configured to control the lamp driving unit to turn on the headlamp, detect an origin point from the forward image inputted from the capturing unit, set the offset for adjusting the position of the headlamp by comparing the detected origin point to the initial origin point or the changed origin point stored in the storage unit, and store a changed origin point, newly set based on the detected origin point, and the offset in the storage unit.

Light pattern drawing device for aligning illuminated areas outside of vehicle

An illumination device capable of correcting a deviation of a drawing position when drawing is performed at a position deviated from a designed target position on a road surface is provided. The illumination device can include: a first irradiation unit configured to irradiate light having a first light distribution pattern; and a second irradiation unit configured to irradiate light having a second light distribution pattern different from the first light distribution pattern, wherein at least one of the first light distribution pattern and the second light distribution pattern includes a main pattern and an auxiliary pattern configured to have an assisting function.

Method of analyzing a light distribution of a vehicle headlight

The invention describes a method of analyzing a light distribution of a vehicle headlight. The method determines a cutoff line based on a brightness distribution within a column of an image of the light distribution, the column being perpendicular to a horizon in the image. The method compares the cutoff line with a reference cutoff line and uses the deviations revealed by such comparison to attribute a reduced quality of the light distribution to a particular one of several possible causes. The invention further describes a vehicle headlight analyzer which is arranged to perform the method. The invention finally describes a corresponding computer program product comprising code for executing the method on a processing device.

HIGH-VOLUME, LONG-RANGE HEADLAMP AIMING

A system for aiming a headlamp of a vehicle includes a displaceable aiming surface and an imaging system. The imaging system includes a translatable aim box carrying at least one headlamp imager oriented to capture images of a single headlamp and/or one or more vehicle features adjacent to the single headlamp. At least one fixed imager is oriented to capture one or more images of the displaceable aiming surface. The translatable aim box may be configured to translate between the single headlamp and another headlamp. One or more computing devices are configured to perform methods for headlamp aim correction using the described system. Methods for headlamp aim correction are described.

Method of automatically adjusting leveling of pixel light headlamp for vehicle

Disclosed is a method of automatically adjusting the leveling of a pixel light headlamp for a vehicle, which may automatically adjust the leveling of a headlamp that is configured for implementing a pixel light using a DMD optical system.