Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/048153
Kind Code:
A1
Abstract:
A light-emitting device (100), comprising: a light source (10); a light guide element (20) located on a light emergent side of the light source and configured to conduct rays of light emitted by the light source, wherein the light guide element comprises a light emergent face (21) and an outer side face (22), and the outer side face comprises a first region (221) near the light emergent face; a reflecting element (30) arranged on the light emergent face of the light guide element and used to reflect at least some of the rays of light emitted from the light emergent face to the first region of the light guide element; and a light-emitting element (40) located on the first region of the light guide element and used to emit rays of light by being excited by the rays of light reflected by the reflecting element, wherein the intensity of the rays of light reflected by the reflecting element is positively correlated to the distance of the rays of light from the reflecting element to the first region. The brightness of the rays of light emitted by such a light-emitting device is improved.
Inventors:
HU FEI (CN)
TIAN ZIFENG (CN)
CHEN BIN (CN)
DUAN YINXIANG (CN)
XU HU (CN)
LI YI (CN)
TIAN ZIFENG (CN)
CHEN BIN (CN)
DUAN YINXIANG (CN)
XU HU (CN)
LI YI (CN)
Application Number:
PCT/CN2019/086933
Publication Date:
March 12, 2020
Filing Date:
May 15, 2019
Export Citation:
Assignee:
YLX INC (CN)
International Classes:
F21S2/00; F21V7/00; F21V8/00; F21Y115/15
Foreign References:
| CN108361566A | 2018-08-03 | |||
| CN102345803A | 2012-02-08 | |||
| CN104298060A | 2015-01-21 | |||
| CN205746116U | 2016-11-30 | |||
| CN1901186A | 2007-01-24 |
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