EP 3061136 A1 20160831 - LIGHT-EMITTING DEVICE AND METHOD FOR ADJUSTING THE EMISSION OF SAID DEVICE
Title (en)
LIGHT-EMITTING DEVICE AND METHOD FOR ADJUSTING THE EMISSION OF SAID DEVICE
Title (de)
LICHTEMITTIERENDE VORRICHTUNG UND VERFAHREN ZUR EINSTELLUNG DER EMISSION DIESER VORRICHTUNG
Title (fr)
DISPOSITIF EMISSIF LUMINEUX ET PROCEDE D'AJUSTEMENT DE SON EMISSION
Publication
Application
Priority
- FR 1360416 A 20131025
- EP 2014072898 W 20141024
Abstract (en)
[origin: WO2015059294A1] The invention relates to a light-emitting device (100) comprising: a light-emitting diode (102) having an emitting layer comprising a ternary or quaternary semiconductor including a chemical element from column 13 of the periodic table of elements, from among Al, Ga and In, and having an atomic composition that varies over the thickness of the emitting layer, and/or at least two emitting layers each comprising such a semiconductor, the atomic compositions of the element being different from one layer to another; a device (108) for detecting a wavelength and intensity of a light emitted by the diode; a switched-mode electric power supply (110) which can supply the diode with a periodic signal having a duty factor α; a device (111) for controlling the switched-mode electric power supply, which can alter α and a peak value of the periodic signal according to detected values and target values.
IPC 8 full level
H01L 33/06 (2010.01); H01L 25/16 (2006.01); H01L 33/32 (2010.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H01L 25/167 (2013.01 - EP US); H01L 31/147 (2013.01 - US); H01L 33/0025 (2013.01 - US); H01L 33/06 (2013.01 - EP US); H01L 33/08 (2013.01 - US); H01L 33/32 (2013.01 - EP US); H01L 33/502 (2013.01 - US); H05B 45/14 (2020.01 - US); H05B 45/24 (2020.01 - EP US); H01L 33/18 (2013.01 - EP US); H01L 33/24 (2013.01 - EP US); H01L 2224/16225 (2013.01 - EP US); H01L 2924/0002 (2013.01 - EP US)
Citation (search report)
See references of WO 2015059294A1
Citation (examination)
US 2013087761 A1 20130411 - KIMURA SHIGEYA [JP], et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015059294 A1 20150430; EP 3061136 A1 20160831; FR 3012675 A1 20150501; FR 3012675 B1 20151225; US 2016276328 A1 20160922
DOCDB simple family (application)
EP 2014072898 W 20141024; EP 14790568 A 20141024; FR 1360416 A 20131025; US 201415031992 A 20141024