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Light-emitting element, method for producing same and light-emitting device
US9202995B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9202995-B2 |
| Application number | US-201414255059-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 17, 2014 |
| Priority date | Oct 18, 2011 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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A light-emitting element that includes a first wavelength conversion unit and a second wavelength conversion unit. The first wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented by A 1 B 1 O w1 . The second wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented by A 2 B 2 O w2 . A 1 and A 2 each include at least one element selected from the group consisting of La, Y, Gd, Yb and Lu, and 0.001 mol % to 5 mol % of Bi. B 1 and B 2 each include at least one element selected from the group consisting of Sn, Zr and Hf. The content of La in A 1 is higher than the content of La in A 2 . The contents of Y, Gd, and Lu in A 2 are higher than the contents of Y, Gd and Lu in A 1 .
First claim
Opening claim text (preview).
The invention claimed is: 1. A light-emitting element comprising a first wavelength conversion unit; and a second wavelength conversion unit disposed on the first wavelength conversion unit, wherein the first wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented by A 1 B 1 O w1 in which A 1 includes at least one element selected from the group consisting of La, Y, Gd, Yb and Lu, and 0.001 mol % to 5 mol % of…
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Classifications
Electricity · mapped topic
- H10H20/8513Primary
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9202995B2 cover?
- A light-emitting element that includes a first wavelength conversion unit and a second wavelength conversion unit. The first wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented by A 1 B 1 O w1 . The second wavelength conversion unit includes a ceramic containing, as a primary component, a pyrochlore-type compound represented b…
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification H10H20/8513. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 01 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).