Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/195745
Kind Code:
A1
Abstract:
A lighting device disclosed in an embodiment of the present invention may comprise: a substrate; a light source which is disposed on the substrate; and a light guide member which is disposed on the substrate and the light source, wherein: the light guide member comprises a light exit surface and a first reflection surface opposite to the light exit surface; the first reflection surface comprises a plurality of reflection portions having different heights with respect to the upper surface of the substrate; and each of the plurality of reflection portions comprises a plurality of first surfaces which are inclined to the upper surface of the substrate.
Inventors:
LIM EAY JIN (KR)
KO KWANG HYUN (KR)
YANG HYUN DUCK (KR)
LEE DONG HYUN (KR)
KO KWANG HYUN (KR)
YANG HYUN DUCK (KR)
LEE DONG HYUN (KR)
Application Number:
PCT/KR2023/004536
Publication Date:
October 12, 2023
Filing Date:
April 04, 2023
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
F21S43/241; F21S41/24
Foreign References:
| JPH076610A | 1995-01-10 | |||
| KR20190081790A | 2019-07-09 | |||
| JP2007227356A | 2007-09-06 | |||
| KR20140083807A | 2014-07-04 | |||
| KR20180076708A | 2018-07-06 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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