Phosphor-dispersed glass

US9434876B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9434876-B2
Application numberUS-201514920560-A
CountryUS
Kind codeB2
Filing dateOct 22, 2015
Priority dateOct 23, 2014
Publication dateSep 6, 2016
Grant dateSep 6, 2016

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Disclosed is a phosphor-dispersed glass, including: a glass material; and a phosphor dispersed in the glass material, wherein the glass material is substantially free of Nb 2 O 5 and contains: 15 to 40 mass % of SiO 2 ; 10 to 30 mass % of B 2 O 3 ; 1 to 35 mass % of ZnO; 0 to 20 mass % of Al 2 O 3 ; 2 to 30 mass % in total of at least one kind selected from the group consisting of BaO, CaO and SrO; 0 to 1 mass % of MgO; 5 to 35 mass % in total of R 2 O (at least one selected from the group consisting of Li 2 O, Na 2 O and K 2 O); and 0 to 15 mass % in total of at least one of antimony oxide and tin oxide.

First claim

Opening claim text (preview).

The invention claimed is: 1. A phosphor-dispersed glass, comprising: a glass material; and a phosphor dispersed in the glass material, wherein the glass material is substantially free of Nb 2 O 5 and contains: 15 to 40 mass % of SiO 2 ; 10 to 30 mass % of B 2 O 3 ; 1 to 35 mass % of ZnO; 0 to 20 mass % of Al 2 O 3 ; 2 to 30 mass % in total of at least one kind selected from the group consisting of BaO, CaO and SrO; 0 to 1 mass % of MgO; 5 to 35 mass % in total of R 2 O (at least one selected from the group consisting of Li 2 O, Na 2 O and K 2 O); and 0 to 15 mass % in total of at least one of antimony oxide and tin oxide. 2. The phosphor-dispersed glass according to claim 1 , wherein BaO is contained in an amount of 1 to 30 mass % in the glass material. 3. The phosphor-dispersed glass according to claim 1 , wherein each of antimony oxide and tin oxide is contained in an amount of at least 0.1 mass % in the glass material. 4. The phosphor-dispersed glass according to claim 1 , wherein the glass material has a linear expansion coefficient of 6 to 13 ppm/° C. at 30° C. to 300° C. and a softening temperature of 670° C. or lower. 5. The phosphor-dispersed glass according to claim 1 , wherein the phosphor is at least one kind selected from the group consisting of oxide phosphors, oxynitride phosphors, nitride phosphors, oxysulphide phosphors, sulfide phosphors, aluminate phosphors, halophosphate phosphors, fluoride phosphors and YAG phosphors. 6. The phosphor-dispersed glass according to claim 1 , further comprises an inorganic filler. 7. A light emitting device, comprising: the phosphor-dispersed glass according to claim 1 ; and either a light emitting diode or a laser diode.

Assignees

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Classifications

  • Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides · CPC title

  • Aluminates · CPC title

  • Wavelength conversion materials · CPC title

  • characterised by their material, e.g. binder · CPC title

  • Electricity · mapped topic

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What does patent US9434876B2 cover?
Disclosed is a phosphor-dispersed glass, including: a glass material; and a phosphor dispersed in the glass material, wherein the glass material is substantially free of Nb 2 O 5 and contains: 15 to 40 mass % of SiO 2 ; 10 to 30 mass % of B 2 O 3 ; 1 to 35 mass % of ZnO; 0 to 20 mass % of Al 2 O 3 ; 2 to 30 mass % in total of at least one kind selected from the group consisting of BaO, CaO and…
Who is the assignee on this patent?
Central Glass Co Ltd
What technology area does this patent fall under?
Primary CPC classification C09K11/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 06 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).