(19)
(11) EP 4 005 347 A1

(12)

(43) Date of publication:
01.06.2022 Bulletin 2022/22

(21) Application number: 20757439.3

(22) Date of filing: 28.07.2020
(51) International Patent Classification (IPC): 
H05B 45/20(2020.01)
(52) Cooperative Patent Classification (CPC):
H05B 45/20; H05B 45/10
(86) International application number:
PCT/US2020/043916
(87) International publication number:
WO 2021/021834 (04.02.2021 Gazette 2021/05)
(84) Designated Contracting States:
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 States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 31.07.2019 US 201916528108
05.11.2019 EP 19207130

(71) Applicant: Lumileds LLC
San Jose, CA 95131 (US)

(72) Inventor:
  • QIU, Yifeng
    San Jose, CA 95131 (US)

(74) Representative: Beckord & Niedlich Patentanwälte PartG mbB 
Marktplatz 17
83607 Holzkirchen
83607 Holzkirchen (DE)

   


(54) CONTROL DESIGN FOR PERCEPTUALLY UNIFORM COLOR-TUNING