EP 2757861 B1 20190306 - Led lighting module with variable colour temperature.
Title (en)
Led lighting module with variable colour temperature.
Title (de)
LED-Beleuchtungsmodul mit verstellbarer Farbtemperatur
Title (fr)
Module d'éclairage à DEL avec température de couleur variable
Publication
Application
Priority
EP 13151395 A 20130116
Abstract (en)
[origin: EP2757861A1] The present invention refers to a LED lighting module that comprises a primary chain of LED devices and secondary chains of LED devices. The primary chain of LED devices is connected in series to a current generator, adapted to provide a supply current to the lighting module. The secondary chains of LED devices are connected in parallel to one another and in series to said current generator and to said primary chains of LED devices. The primary chain and one the first and second secondary chains form different lighting units with different colour temperatures. The lighting module comprises one or more electronic switches, through which it is possible to alternatively turn on/off one of the lighting units in order to change the colour temperature of the light emitted by the lighting module.
IPC 8 full level
H05B 33/08 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/20 (2020.01 - EP US); H05B 45/44 (2020.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 13151395 A 20130116