Phosphors, fabricating method thereof, and light emitting device employing the same
US-9080105-B1 · Jul 14, 2015 · US
Phosphor, light emitting device and lighting apparatus
US9525110B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9525110-B2 |
| Application number | US-201314436079-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 19, 2013 |
| Priority date | Oct 16, 2012 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
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An object of the invention is to provide a phosphor that emits a light containing much red and green light components and a light-emitting device and a lighting apparatus comprising the phosphor that have favorable color rendering properties. An oxide nitride phosphor having a garnet structure represented by Formula [1]: A w Al x C y :Ce z , in Formula [1], A=(Lu a ,Y b ), a+b=1, 0<a<1, 0<b<1, C═(O c ,N d ), 10≦c+d≦16, 1.4≦c/d, 2≦w+z≦4, 4.0<x≦7.0); the molar ratio of Ce/A is ≧0.015 and the nitrogen content is 0.007 mass % or more.
First claim
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The invention claimed is: 1. A phosphor having a garnet structure represented by General Formula: (Lu a ,Y b ) w Al x (O c ,N d ) y :Ce z , wherein a+b=1, 0<a<1, 0<b<1, 10≦(c+d)×y≦16, 1.4≦c/d, 2≦w+z≦4, and 4.0<x≦7.0; the molar ratio of Ce and (sum of Lu+Y) is 0.015≦Ce/(Lu+Y) and the nitrogen content is 0.007 mass % or more. 2. A light-emitting device comprising a light-emitting element and the phosphor according to claim 1 . 3. A lighting apparatus comprising the light-emitting device according to claim 2 .
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between a chip and a stacked lead frame, conducting package substrate or heat sink · CPC title
Encapsulations, e.g. protective coatings · CPC title
Aluminium Nitrides or Aluminium Oxynitrides · CPC title
based on aluminates · CPC title
Cerium oxides or oxide-forming salts thereof · CPC title
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- What does patent US9525110B2 cover?
- An object of the invention is to provide a phosphor that emits a light containing much red and green light components and a light-emitting device and a lighting apparatus comprising the phosphor that have favorable color rendering properties. An oxide nitride phosphor having a garnet structure represented by Formula [1]: A w Al x C y :Ce z , in Formula [1], A=(Lu a ,Y b ), a+b=1, 0<a<1, 0<b<1, …
- Who is the assignee on this patent?
- Denki Kagaku Kogyo Kk, Denka Company Ltd
- What technology area does this patent fall under?
- Primary CPC classification H10H20/8512. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).