The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2022
Filed:
Jun. 16, 2017
Applicant:
Appotronics Corporation Limited, Guangdong, CN;
Inventors:
Assignee:
APPOTRONICS CORPORATION LIMITED, Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/16 (2006.01); G02B 1/11 (2015.01); C04B 35/78 (2006.01); H01L 33/50 (2010.01); H01L 33/64 (2010.01); C04B 35/50 (2006.01); H01L 33/46 (2010.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
H01S 3/1643 (2013.01); C04B 35/50 (2013.01); C04B 35/78 (2013.01); C09K 11/7774 (2013.01); G02B 1/11 (2013.01); H01L 33/46 (2013.01); H01L 33/502 (2013.01); H01L 33/641 (2013.01); C04B 2235/782 (2013.01); C04B 2235/786 (2013.01); C04B 2235/95 (2013.01); C04B 2237/123 (2013.01); C04B 2237/125 (2013.01); C09K 11/7715 (2013.01);
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.