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:
Mar. 19, 2024
Filed:
May. 19, 2022
Grirem Advanced Materials Co., Ltd., Beijing, CN;
Grirem Hi-tech Co., Ltd., Hebei, CN;
Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd., Hebei, CN;
Ronghui Liu, Beijing, CN;
Shaowei Qin, Beijing, CN;
Yuanhong Liu, Beijing, CN;
Yanfeng Li, Beijing, CN;
Xiaoxia Chen, Beijing, CN;
Xiaole Ma, Beijing, CN;
Yuan Xue, Beijing, CN;
GRIREM ADVANCED MATERIALS CO., LTD., Beijing, CN;
Grirem Hi-Tech Co., Ltd, Langfang, CN;
Rare Earth Functional Materials (Xiong'an) Innovation Center Co., Ltd., Baoding, CN;
Abstract
The invention relates to a phosphor with garnet structure and a light-emitting device comprising the phosphor, wherein the phosphor includes the following components in percentage by weight: 38.47-45.19% of Y element, 9.49-22.09% of Al element, 2.06-24.31% of Ga element, 27.3-32.04% of O element, 0.43-1.46% of Ce element. In the phosphor particles, the shortest distance from the surface of one side of the particle to the surface of the opposite side through the centroid of the particle is defined as R, the longest distance is R1, and 5 μm≤R≤40 μm; any distance from the particle surface to the centroid is r, and 0<r<½R; and the space with the distance from the particle surface to the centroid direction being less than or equal to r is defined as r.