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Patent Searching and Data


Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/020809
Kind Code:
A1
Abstract:
An embodiment can comprise a lighting device comprising: a substrate comprising first to fourth sides; a resin layer comprising a plurality of grooves comprising a floor surface, an emission surface and an inclined surface; a plurality of light-emitting diodes disposed inside the grooves and emitting a first light; a reflective layer formed on the inclined surface; and a diffusion layer disposed on the resin layer. The plurality of grooves extend in the direction from the third side to the fourth side and are aligned in the direction from the first side to the second side. The plurality of grooves comprise a first groove closest to the first side of the substrate and a second groove close to the first groove. The first light emitted from the light-emitting diode disposed in the second groove is reflected off the reflective layer formed on the inclined surface of the second groove, passes through the emission surface of the second groove, is reflected off the reflective layer formed on the inclined surface of the first groove and passes through the resin layer and the diffusion layer.

Inventors:
PARK HOON (KR)
EOM DONG IL (KR)
LEE YU WON (KR)
Application Number:
PCT/KR2020/009740
Publication Date:
February 04, 2021
Filing Date:
July 23, 2020
Export Citation:
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Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
F21S41/00; F21K9/60; F21S43/00; F21V9/30; F21Y115/10
Foreign References:
KR101734545B12017-05-11
KR20120014418A2012-02-17
KR20110136651A2011-12-21
KR101196909B12012-11-05
US20100232138A12010-09-16
Other References:
See also references of EP 4008950A4
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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