EP 3623696 B1 20220223 - PANEL LIGHT APPARATUS
Title (en)
PANEL LIGHT APPARATUS
Title (de)
PLATTENLICHTVORRICHTUNG
Title (fr)
APPAREIL D'ÉCLAIRAGE DE PANNEAU
Publication
Application
Priority
CN 201821501945 U 20180913
Abstract (en)
[origin: EP3623696A1] A panel light apparatus includes a heat sink frame (11; 41; 972; 9831; 672; 752; 759; 995), a first LED light bar (31; 32), an optical guiding module (13; 71) and a back cover (28; 831; 911; 975; 781; 653) (28; 831; 911; 975; 781; 653). The first LED light bar (31; 32) has a first plugging structure (312; 313; 314; 315) to be plugged to a second plugging structure of the heat sink frame (11; 41; 972; 9831; 672; 752; 759; 995). Heat of the LED light bar(511; 512) is transmitted to the heat sink frame (11; 41; 972; 9831; 672; 752; 759; 995). The optical guiding module (13; 71) includes a light diffusion layer (231; 714; 632; 864; 872; 902; 881; 917; 892; 891; 944; 9742; 774) and a light guiding layer (232; 713; 63; 863; 871; 901; 916; 891; 943; 9741; 773). A lateral side of the light guiding layer (232; 713; 63; 863; 871; 901; 916; 891; 943; 9741; 773) faces to LED modules (945; 9511; 9512; 996) of the first LED light bar (31; 32) for guiding light of the LED modules (945; 9511; 9512; 996) to the diffusion layer. The light guiding layer (232; 713; 63; 863; 871; 901; 916; 891; 943; 9741; 773) and the light diffusion layer (231; 714; 632; 864; 872; 902; 881; 917; 892; 891; 944; 9742; 774) are fixed together as an assembly module before being placed in the surrounding border.
IPC 8 full level
F21V 21/04 (2006.01); F21S 8/02 (2006.01); F21S 8/04 (2006.01); F21Y 115/10 (2016.01)
CPC (source: EP)
F21S 8/026 (2013.01); F21S 8/04 (2013.01); F21V 21/049 (2013.01); F21Y 2115/10 (2016.07)
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)
EP 3623696 A1 20200318; EP 3623696 B1 20220223; CN 208997878 U 20190618
DOCDB simple family (application)
EP 19188350 A 20190725; CN 201821501945 U 20180913