Patent · US Active

Method of analyzing a light distribution of a vehicle headlight

US10724920B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

LUMILEDS LLC · US

Inventors

Yul Jens Eberlein · Aachen, DE
Maximilian Heithoff · Goldkronach, DE
Lukas Kuepper · Aachen, DE

Key dates

Filing date	Nov 27, 2017
Grant date	Jul 28, 2020
Priority date	—
Expiry date	Nov 27, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/20076
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.