Invention Grant
- Patent Title: Light-emitting ceramic and light-emitting device
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Application No.: US16349809Application Date: 2017-06-16
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Publication No.: US11245243B2Publication Date: 2022-02-08
- Inventor: Qian Li , Yusan Chen , Yanzheng Xu
- Applicant: APPOTRONICS CORPORATION LIMITED
- Applicant Address: CN Guangdong
- Assignee: APPOTRONICS CORPORATION LIMITED
- Current Assignee: APPOTRONICS CORPORATION LIMITED
- Current Assignee Address: CN Guangdong
- Agency: Marshall, Gerstein & Borun LLP
- Priority: CN201611004965.3 20161115
- International Application: PCT/CN2017/088634 WO 20170616
- International Announcement: WO2018/090614 WO 20180524
- Main IPC: H01S3/16
- IPC: H01S3/16 ; G02B1/11 ; C04B35/78 ; H01L33/50 ; H01L33/64 ; C04B35/50 ; H01L33/46 ; C09K11/77
Abstract:
A light-emitting ceramic and a light-emitting device. The light-emitting ceramic comprises a YAG substrate and light-emitting centers and diffusion particles evenly dispersed in the YAG substrate. The light-emitting centers are lanthanide-doped YAG fluorescent powder particles of 10-20 μm in grain size. The particle size of the scattering particles is 20-50 nm. The YAG substrate is a lanthanide-doped YAG ceramic. Also, the grain size of the YAG substrate is less than the grain size of the YAG fluorescent powder particles.
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