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1. CN111365685 - Light-emitting device with high red light brightness and high reliability

Office
China
Application Number 201811596755.7
Application Date 26.12.2018
Publication Number 111365685
Publication Date 03.07.2020
Publication Kind A
IPC
F21V 9/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
9Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
30Elements containing photoluminescent material distinct from or spaced from the light source
32characterised by the arrangement of the photoluminescent material
F21V 7/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
22characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
28characterised by coatings
F21V 29/71
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
70characterised by passive heat-dissipating elements, e.g. heat-sinks
71using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21V 7/24
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
22characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
24characterised by the material
CPC
F21V 29/71
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
70characterised by passive heat-dissipating elements, e.g. heat-sinks
71using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21V 7/24
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
22characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
24characterised by the material
F21V 7/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
22characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
28characterised by coatings
F21V 9/32
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
9Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
30Elements containing photoluminescent material distinct from or spaced from the light source
32characterised by the arrangement of the photoluminescent material
H01L 25/075
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
25Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; ; Multistep manufacturing processes thereof
03all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L51/00, e.g. assemblies of rectifier diodes
04the devices not having separate containers
075the devices being of a type provided for in group H01L33/00
Applicants APPOTRONICS INC.
深圳光峰科技股份有限公司
Inventors TIAN ZIFENG
田梓峰
ZHANG SHIZHONG
张世忠
LI YI
李屹
Agents 北京信慧永光知识产权代理有限责任公司 11290
北京信慧永光知识产权代理有限责任公司 11290
Title
(EN) Light-emitting device with high red light brightness and high reliability
(ZH) 一种具有高的红光亮度和高的可靠性的发光装置
Abstract
(EN)
The invention provides a light-emitting device. The light-emitting device comprises a heat conduction substrate, a reflecting layer and a light-emitting layer which are sequentially stacked from bottom to top. The light-emitting device is characterized in that the reflecting layer is a gold reflecting layer, the light-emitting layer comprises any one or more of Y3Al5O12: Ce 3+ fluorescent powder,(Y, Gd)3Al5O12: Ce 3+ fluorescent powder, alpha-SiAlON: Eu 2+ fluorescent powder and (Sr, Ca) AlSiN3: Eu 2+ fluorescent powder, the doping concentration of Ce 3+ in the Y3Al5O12: Ce 3+ fluorescent powder is 1.2mol% or above, the doping concentration of Ce 3+ in the (Y, Gd)3Al5O12: Ce 3+ fluorescent powder is 0.5mol% or above, and the doping concentration of Gd 3+ is 10mol% or above.

(ZH)
本发明提供了一种发光装置,包括从下到上依次层叠设置的导热基板、反射层和发光层,其特征在于:所述反射层为金反射层,所述发光层包括Y3Al5O12:Ce3+荧光粉、(Y,Gd)3Al5O12:Ce3+荧光粉、α‑SiAlON:Eu2+荧光粉和(Sr,Ca)AlSiN3:Eu2+荧光粉中的任意一种或多种,所述Y3Al5O12:Ce3+荧光粉中的Ce3+的掺杂浓度为1.2mol%以上,所述(Y,Gd)3Al5O12:Ce3+荧光粉中的Ce3+的掺杂浓度为0.5mol%以上并且Gd3+的掺杂浓度为10mol%以上。

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