Patent · US Active

Lighting device and lighting system comprising the lighting device

US11399423B2 · kind B2 · utility

2Cited by

0References

15Claims

0Family size

Assignee

LEDVANCE GMBH · DE

Inventors

Patrick Kotal · Regenstauf, DE
Krister Bergenek · Regensburg, DE
Shijun Nie · Tangxia, CN

Key dates

Filing date	Mar 19, 2021
Grant date	Jul 26, 2022
Priority date	—
Expiry date	Mar 19, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH05B47/19
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting device including an LED light source, wherein the LED light source includes a first LED strand for generating a first light with a first correlated color temperature and a second LED strand for generating a second light with a second color temperature different from the first color temperature. The lighting device further comprises control electronics with a controllable LED driver for driving the LED light source, wherein the control electronics comprise a switch for switching between the first LED strand and the second LED strand so that either the first LED strand or the second LED strand is activated depending on the switch position. A lighting system comprising the lighting device is further disclosed.

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