EP 2554019 A1 20130206 - OPTOELECTRONIC DEVICE
Title (en)
OPTOELECTRONIC DEVICE
Title (de)
OPTOELEKTRONISCHE VORRICHTUNG
Title (fr)
DISPOSITIF OPTOÉLECTRONIQUE
Publication
Application
Priority
- DE 102010013493 A 20100331
- EP 2011054960 W 20110330
Abstract (en)
[origin: WO2011121046A1] An optoelectronic device for emitting mixed light comprises: - a first semiconductor light source (1) having a first light-emitting diode (11), which emits light in a first wavelength range with a first intensity during operation, wherein the first wavelength range and/or the first intensity have/has a first temperature dependence, - a second semiconductor light source (2) having a second light-emitting diode (21, 22), which emits light in a second wavelength range with a second intensity during operation, wherein the first and the second wavelength ranges differ from one another and wherein the second wavelength range and/or the second intensity have/has a second temperature dependence, which differs from the first temperature dependence, - a third semiconductor light source (3) having a third light-emitting diode (31), which emits light in a third wavelength range with a third intensity during operation, - a resistance element (4) having a temperature-dependent electrical resistance, and - a semiconductor light source control element (9) for controlling the intensity of the third semiconductor light source (3), - wherein the following are connected in a parallel circuit: the first series circuit comprising the resistance element (4) and the first semiconductor light source (1) in a first branch (101) of the parallel circuit, the second semiconductor light source (2) in a second branch (102) of the parallel circuit and a second series circuit comprising the third semiconductor light source (3) and the semiconductor light source control element (9) in a third branch (103) of the parallel circuit.
IPC 8 full level
H05B 44/00 (2022.01); H05B 37/02 (2006.01)
CPC (source: EP KR US)
H05B 45/20 (2020.01 - EP US); H05B 45/28 (2020.01 - KR); H05B 47/10 (2020.01 - EP KR US); H05B 47/20 (2020.01 - KR)
Citation (search report)
See references of WO 2011121046A1
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)
WO 2011121046 A1 20111006; CN 103098545 A 20130508; CN 103098545 B 20160302; DE 102010013493 A1 20111006; EP 2554019 A1 20130206; EP 2554019 B1 20170621; KR 20130025394 A 20130311; US 2013088166 A1 20130411; US 9538609 B2 20170103
DOCDB simple family (application)
EP 2011054960 W 20110330; CN 201180018060 A 20110330; DE 102010013493 A 20100331; EP 11720049 A 20110330; KR 20127028606 A 20110330; US 201113637438 A 20110330