EP 1610593 B2 20200219 - 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 LED mit verschiedenen Spektrum

Title (fr)

Génération de lumière blanche avec des diodes électroluminescentes de spectres différents

Publication

EP 1610593 B2 20200219 (EN)

Application

EP 05076817 A 20001120

Priority

US 16653399 P 19991118
US 20114000 P 20000502
US 23567800 P 20000927
EP 00980578 A 20001120
US 0031877 W 20001120

Abstract (en)

[origin: EP1610593A2] 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 8 full level

F21K 9/20 (2016.01); 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 (opposition)

Opponent :

US 5060118 A 19911022 - PENROD RICHARD J [US], et al
DE 69305002 T2 19970403 - MATSUSHITA ELECTRIC WORKS LTD [JP]
EP 0851462 A2 19980701 - MATSUSHITA ELECTRIC WORKS LTD [JP]
DE 69204429 T2 19960502 - IGUZZINI ILLUMINAZIONE [IT]
DE 19829270 A1 19990107 - HOFMANN HARALD PROF DR ING [DE]
JP H04154086 A 19920527 - MATSUSHITA ELECTRIC WORKS LTD
GB 2306636 A 19970507 - ASHLEY & ROCK LTD [GB]
US 6095661 A 20000801 - LEBENS GARY A [US], et al
WO 0054655 A1 20000921 - BAUSCH & LOMB SURGICAL INC [US]
US 5301090 A 19940405 - HED AHARON Z [US]
WO 0019141 A1 20000406 - KONINKL PHILIPS ELECTRONICS NV [NL]
US 6028694 A 20000222 - SCHMIDT GREGORY W [US]
WO 9628956 A1 19960919 - PHILIPS ELECTRONICS NV [NL], et al

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