Patent · US Active

Illumination device

US10966294B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Robert ISELE · Fürstenfeldbruck, DE
Juergen Bruegl · Munich, DE
Florian Altinger · 南湖街道, CN

Key dates

Filing date	Nov 2, 2018
Grant date	Mar 30, 2021
Priority date	—
Expiry date	May 22, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An illumination device for a motor vehicle includes one or more multi-color LED units which each have a settable color point and settable brightness, wherein each multi-color LED unit is an individual semiconductor component having multiple single-color LEDs of different colors and a microcontroller. The single-color LEDs and the microcontroller are surrounded by a housing of the semiconductor component. The microcontroller is designed to control each single-color LED of an associated multi-color LED unit depending on a current temperature value of the associated multi-color LED unit in such a way that a set color point and a set brightness are held constant during operation of the associated multi-color LED unit.

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