US 12,337,767 B2
Vehicle headlamp
Oleksandr Chistov, Wieselburg (AT); and Martin Brandstetter, Ybbs (AT)
Assigned to ZKW Group GmbH, Wieselburg (AT)
Filed by ZKW Group GmbH, Wieselburg (AT)
Filed on Dec. 14, 2022, as Appl. No. 18/080,920.
Claims priority of application No. 21214785 (EP), filed on Dec. 15, 2021.
Prior Publication US 2023/0182655 A1, Jun. 15, 2023
Int. Cl. H01L 29/94 (2006.01); B60Q 1/24 (2006.01); B60R 11/04 (2006.01); B60W 30/08 (2012.01); F21S 41/20 (2018.01); G06T 7/73 (2017.01); G06T 7/80 (2017.01); G06V 20/58 (2022.01)
CPC B60R 11/04 (2013.01) [B60Q 1/249 (2022.05); B60W 30/08 (2013.01); F21S 41/285 (2018.01); G06T 7/73 (2017.01); G06T 7/85 (2017.01); G06V 20/58 (2022.01); B60R 2300/8093 (2013.01); B60W 2420/403 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A vehicle headlamp system comprising:
two vehicle headlamps (10, 11, 12) for detecting an obstacle in front of the vehicle headlamp system, wherein each of the two vehicle headlamps is a vehicle headlamp (10) for illuminating a light distribution and for detecting an obstacle in front of the vehicle headlamp (10) in a main direction (X), comprising:
a housing (100) with a front opening (110) directed in the main direction (X) and a cover lens (200) closing the opening (110) of the housing (100);
an obstacle detection device comprising a camera (300) for capturing images (310) of the environment in front of the camera (300) in the main direction (X) in order to detect obstacles in front of the vehicle headlamp (10), wherein the camera (300) is disposed inside the housing (100); and
a camera calibration system for automatically calibrating the spatial orientation of the camera (300), wherein the camera calibration system is configured to keep the camera (300) in a predetermined target position (P1), wherein the camera calibration system comprises:
an adjustment device for adjusting the spatial orientation of the camera (300) within the housing (100),
a reference mark (400) non movable in relation to the housing (100) and arranged in an image producing field of view of the camera (300) in the housing (100), so that the reference mark (400) is visible in the images (310) by the camera (300), wherein each image (310) having a constant predetermined reference mark position sector (310a), and wherein the camera (300) is in the target position (P1), when the reference mark (400) is arranged within the predetermined reference mark position sector (310a) of the images (310), and
a control device which is connected to the camera (300) and the adjustment device, wherein the control device is configured to receive the images (310) captured by the camera (300), wherein the control device controls the adjustment device in order to remove the deviation from the target position (P1) of the camera (300), when the reference mark (400) is outside the predetermined reference mark position sector (310a) of the images (300) in a non-target position (P2); and
a further control device which is connected to the cameras (300), the control devices and the adjustment devices of the vehicle headlamps (10), wherein the further control device is configured to receive captured images (310) of both vehicle headlamps (10), and wherein the further control device by means of a program stored in the further control device is configured to align the cameras (300) via the adjustment devices with respect to each other in such a way that, when images (310) captured by the cameras (300) at the same time are overlapped by the program, the images (310) substantially overlap with respect to the horizon and/or a roadside in the images (310), wherein the camera calibration system of each vehicle headlamp (10) brings the cameras (300) in the target position (P1) in case the further control device align the cameras (300) in a way that the cameras (300) are in the non-target position (P2).