EP 3487265 A1 20190522 - LIGHTING APPARATUS FOR A DISPLAY DEVICE
Title (en)
LIGHTING APPARATUS FOR A DISPLAY DEVICE
Title (de)
BELEUCHTUNGSVORRICHTUNG FÜR ANZEIGEVORRICHTUNG
Title (fr)
APPAREIL D'ÉCLAIRAGE POUR AN DISPOSITIF D'AFFICHAGE
Publication
Application
Priority
EP 17201953 A 20171115
Abstract (en)
A lighting apparatus has a plurality of light sources (31) for emitting light. The lighting apparatus has a reflective element (33) and a photodetector (34). The light sources (31) are located at different respective locations on a surface (32). The reflective element (33) is arranged to receive light from at least two of the plurality of light sources (31) and to direct the received light to the photodetector (34). The photodetector (34) is located at a location on the surface that is between the locations of the at least two light sources (31). The lighting apparatus may be used in a display device (50), with each of the light sources being operable to generate an image for display at a screen of the display device (50).
IPC 8 full level
H05B 44/00 (2022.01)
CPC (source: EP)
H05B 45/22 (2020.01)
Citation (search report)
- [X] US 2012146058 A1 20120614 - TSANG JIAN-SHIHN [TW]
- [I] WO 2006054234 A2 20060526 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [I] US 2007045524 A1 20070301 - RAINS JACK C JR [US], et al
- [I] US 2013293877 A1 20131107 - RAMER DAVID P [US], et al
- [I] US 2013169163 A1 20130704 - SWAMY RAJENDRA [US], et al
- [I] WO 2009144657 A1 20091203 - PHILIPS INTELLECTUAL PROPERTY [DE], et al
- [A] WO 2013178597 A1 20131205 - OSRAM GMBH [DE]
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)
EP 3487265 A1 20190522; EP 3487265 B1 20220406; TR 201719137 A2 20190621
DOCDB simple family (application)
EP 17201953 A 20171115; TR 201719137 A 20171129