JPS5710678A - Fluorescent substance - Google Patents

Fluorescent substance

Info

Publication number
JPS5710678A
JPS5710678A JP8422680A JP8422680A JPS5710678A JP S5710678 A JPS5710678 A JP S5710678A JP 8422680 A JP8422680 A JP 8422680A JP 8422680 A JP8422680 A JP 8422680A JP S5710678 A JPS5710678 A JP S5710678A
Authority
JP
Japan
Prior art keywords
fluorescent substance
activator
yttrium
europium
1w15atom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8422680A
Other languages
Japanese (ja)
Other versions
JPS6121506B2 (en
Inventor
Noboru Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8422680A priority Critical patent/JPS5710678A/en
Publication of JPS5710678A publication Critical patent/JPS5710678A/en
Publication of JPS6121506B2 publication Critical patent/JPS6121506B2/ja
Granted legal-status Critical Current

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  • Luminescent Compositions (AREA)

Abstract

PURPOSE: A novel fluorescent substance that is prepared by substituting a part of yttrium with europium ion in a specific proportion as an activator, thus emitting red light when irradiated with electron or ultraviolet rays.
CONSTITUTION: A compound of Al2O3.2Y2O3: Eu3+, in which the trivalent europium cation substitutes yttrium preferably by 1W15atom% as an activator, is used as a fluorescent substance. The objective fluorescent substance is produced by throughly mixing Y2O3, Al(OH)3 and Eu2O3 by a dry method or coprecipitating oxalates of Y, Al and Eu from an aqueous solution of their chlorides and by calcinating the mixture of their coprecipitate in furnace in an oxidative atmosphere, preferably in the air at 1,200W1,700°C for 1W24hr.
COPYRIGHT: (C)1982,JPO&Japio
JP8422680A 1980-06-21 1980-06-21 Fluorescent substance Granted JPS5710678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8422680A JPS5710678A (en) 1980-06-21 1980-06-21 Fluorescent substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8422680A JPS5710678A (en) 1980-06-21 1980-06-21 Fluorescent substance

Publications (2)

Publication Number Publication Date
JPS5710678A true JPS5710678A (en) 1982-01-20
JPS6121506B2 JPS6121506B2 (en) 1986-05-27

Family

ID=13824557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8422680A Granted JPS5710678A (en) 1980-06-21 1980-06-21 Fluorescent substance

Country Status (1)

Country Link
JP (1) JPS5710678A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2405408A (en) * 2002-06-12 2005-03-02 Gen Electric Improved europium-activated phosphors containing oxides of rare-earth and Group III metals and method of making the same
GB2411176A (en) * 2004-02-17 2005-08-24 Gen Electric Improved europium-activated phosphors containing oxides of rare-earth and Group III metals

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229932Y2 (en) * 1985-08-29 1990-08-13

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2405408A (en) * 2002-06-12 2005-03-02 Gen Electric Improved europium-activated phosphors containing oxides of rare-earth and Group III metals and method of making the same
US7022263B2 (en) 2002-06-12 2006-04-04 General Electric Company Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same
GB2405408B (en) * 2002-06-12 2007-09-19 Gen Electric Improved europium-activated phosphors containing oxides of rare-earth and group IIIB metals and method of making the same
GB2411176A (en) * 2004-02-17 2005-08-24 Gen Electric Improved europium-activated phosphors containing oxides of rare-earth and Group III metals
GB2411176B (en) * 2004-02-17 2009-10-14 Gen Electric Improved europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same

Also Published As

Publication number Publication date
JPS6121506B2 (en) 1986-05-27

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