JPS565883A - Method of producing fluorescent material - Google Patents

Method of producing fluorescent material

Info

Publication number
JPS565883A
JPS565883A JP8249379A JP8249379A JPS565883A JP S565883 A JPS565883 A JP S565883A JP 8249379 A JP8249379 A JP 8249379A JP 8249379 A JP8249379 A JP 8249379A JP S565883 A JPS565883 A JP S565883A
Authority
JP
Japan
Prior art keywords
rare earth
ammonium fluoride
flux
earth metal
activated
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
JP8249379A
Other languages
Japanese (ja)
Other versions
JPS615504B2 (en
Inventor
Shigeo Fujino
Toshio Jinnai
Takashi Hase
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.)
Dai Nippon Toryo KK
Original Assignee
Dai Nippon Toryo KK
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 Dai Nippon Toryo KK filed Critical Dai Nippon Toryo KK
Priority to JP8249379A priority Critical patent/JPS565883A/en
Publication of JPS565883A publication Critical patent/JPS565883A/en
Publication of JPS615504B2 publication Critical patent/JPS615504B2/ja
Granted legal-status Critical Current

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  • Luminescent Compositions (AREA)

Abstract

PURPOSE: On the production of fluorescent substances of rare earth metal silicate activated with rare earth metal, ammonium fluoride or acid ammonium fluoride is added as a flux and they are calcined to increase the emission efficiency and brightness of rare earth metal-activated rare earth silicate under excitation with ultraviolet rays, which is used as a fluorescent film for cathod ray tubes or discharge lamps.
CONSTITUTION: On the production of fluorescent substance of rare earth activated rare earth silicate of the formula (Ln is yttrium, lanthanum, gadolinium, lutetium; Ln' is cerium, europium or terbium; x, y satisfy following relations; 1×10-4≤x≤ 3×10-1, 0.8≤y≤2.2), at least one of ammonium fluoride and acid ammonium fluoride and, when necessary, additional barium compound are added to the starting materials for fluorescent substance as a flux by 1W7.5wt% and 0.5W3wt% respectively; they are calcined to give the objective fluorescent substance. The starting materials are provided by weighing, for example, Ln2O3, SiO2 and Ln'2O3 stoichiometrically and mixing them. The flux is mixed by a dry or wet method.
COPYRIGHT: (C)1981,JPO&Japio
JP8249379A 1979-06-29 1979-06-29 Method of producing fluorescent material Granted JPS565883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8249379A JPS565883A (en) 1979-06-29 1979-06-29 Method of producing fluorescent material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8249379A JPS565883A (en) 1979-06-29 1979-06-29 Method of producing fluorescent material

Publications (2)

Publication Number Publication Date
JPS565883A true JPS565883A (en) 1981-01-21
JPS615504B2 JPS615504B2 (en) 1986-02-19

Family

ID=13776010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8249379A Granted JPS565883A (en) 1979-06-29 1979-06-29 Method of producing fluorescent material

Country Status (1)

Country Link
JP (1) JPS565883A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56155283A (en) * 1980-05-02 1981-12-01 Toshiba Corp Fluorescent substance
FR2584731A1 (en) * 1985-07-12 1987-01-16 Tungsram Reszvenytarsasag Process for the manufacture of terbium-activated luminescent substances based on yttrium silicate
US4647781A (en) * 1983-01-31 1987-03-03 Hitachi Chemical Company, Ltd. Gamma ray detector
JPS645927U (en) * 1987-06-24 1989-01-13
JPS645928U (en) * 1987-06-24 1989-01-13
JPS6447827U (en) * 1987-09-14 1989-03-24
JPH0242927U (en) * 1988-09-19 1990-03-26
JPH02139927U (en) * 1989-04-25 1990-11-22
JPH04218588A (en) * 1990-04-20 1992-08-10 Hitachi Chem Co Ltd Single crystal scintillator and underground layer prospecting apparatus using the same
US5540947A (en) * 1993-11-25 1996-07-30 Minnesota Mining And Manufacturing Company X-ray intensifying screens and method of manufacturing the same
JP2003082346A (en) * 2001-09-13 2003-03-19 Hitachi Chem Co Ltd Phosphor composition
WO2003083010A1 (en) * 2002-03-28 2003-10-09 Hitachi Chemical Co.,Ltd. Phosphor and phosphor composition containing the same
CN1308987C (en) * 2004-07-30 2007-04-04 中国科学院上海光学精密机械研究所 Lutetium disilicate blended submicron imaging fluorescent sreen and its preparing method
US7329370B2 (en) 2003-10-22 2008-02-12 Korea Advanced Institute Of Science And Technology Transparent polycrystalline ceramic scintillators and methods of preparing the same
JP2015212311A (en) * 2014-05-01 2015-11-26 国立大学法人東北大学 Light emitting body and radiation detector
KR20160064314A (en) 2014-11-27 2016-06-08 (주)금강이엔지 Gate pump apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56155283A (en) * 1980-05-02 1981-12-01 Toshiba Corp Fluorescent substance
US4647781A (en) * 1983-01-31 1987-03-03 Hitachi Chemical Company, Ltd. Gamma ray detector
FR2584731A1 (en) * 1985-07-12 1987-01-16 Tungsram Reszvenytarsasag Process for the manufacture of terbium-activated luminescent substances based on yttrium silicate
JPH0545619Y2 (en) * 1987-06-24 1993-11-24
JPS645927U (en) * 1987-06-24 1989-01-13
JPS645928U (en) * 1987-06-24 1989-01-13
JPH0545618Y2 (en) * 1987-06-24 1993-11-24
JPS6447827U (en) * 1987-09-14 1989-03-24
JPH0437946Y2 (en) * 1987-09-14 1992-09-07
JPH0242927U (en) * 1988-09-19 1990-03-26
JPH02139927U (en) * 1989-04-25 1990-11-22
JPH04218588A (en) * 1990-04-20 1992-08-10 Hitachi Chem Co Ltd Single crystal scintillator and underground layer prospecting apparatus using the same
US5540947A (en) * 1993-11-25 1996-07-30 Minnesota Mining And Manufacturing Company X-ray intensifying screens and method of manufacturing the same
JP2003082346A (en) * 2001-09-13 2003-03-19 Hitachi Chem Co Ltd Phosphor composition
WO2003083010A1 (en) * 2002-03-28 2003-10-09 Hitachi Chemical Co.,Ltd. Phosphor and phosphor composition containing the same
US7122129B2 (en) 2002-03-28 2006-10-17 Hitachi Chemical Co., Ltd. Fluorescent substance and fluorescent composition containing the same
US7329370B2 (en) 2003-10-22 2008-02-12 Korea Advanced Institute Of Science And Technology Transparent polycrystalline ceramic scintillators and methods of preparing the same
CN1308987C (en) * 2004-07-30 2007-04-04 中国科学院上海光学精密机械研究所 Lutetium disilicate blended submicron imaging fluorescent sreen and its preparing method
JP2015212311A (en) * 2014-05-01 2015-11-26 国立大学法人東北大学 Light emitting body and radiation detector
KR20160064314A (en) 2014-11-27 2016-06-08 (주)금강이엔지 Gate pump apparatus

Also Published As

Publication number Publication date
JPS615504B2 (en) 1986-02-19

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