EP 1610593 A2 20051228 - Generation of white light with Light Emitting Diodes having different spectrum
Title (en)
Generation of white light with Light Emitting Diodes having different spectrum
Title (de)
Erzeugung von weissem Licht mit Leuchtdioden mit verschiedenen Spektren
Title (fr)
Génération de lumière blanche avec des diodes électroluminescentes de spectres différents
Publication
Application
Priority
- US 16653399 P 19991118
- US 20114000 P 20000502
- US 23567800 P 20000927
- EP 00980578 A 20001120
- US 0031877 W 20001120
Abstract (en)
A light source for generating essentially white light, comprising at least one first white LED having a first spectrum and at least one second white LED having a second spectrum, the first spectrum being different than the second spectrum.
IPC 1-7
IPC 8 full level
F21K 99/00 (2010.01); H05B 33/08 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/20 (2020.01 - EP US); H05B 45/22 (2020.01 - US); H05B 47/175 (2020.01 - EP US); H05B 45/22 (2020.01 - EP)
Citation (applicant)
EP 0936682 A1 19990818 - NICHIA KAGAKU KOGYO KK [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1610593 A2 20051228; EP 1610593 A3 20070523; EP 1610593 B1 20150708; EP 1610593 B2 20200219
DOCDB simple family (application)
EP 05076817 A 20001120