JPS5562990A - Fluorescent substance and its preparation - Google Patents

Fluorescent substance and its preparation

Info

Publication number
JPS5562990A
JPS5562990A JP13583278A JP13583278A JPS5562990A JP S5562990 A JPS5562990 A JP S5562990A JP 13583278 A JP13583278 A JP 13583278A JP 13583278 A JP13583278 A JP 13583278A JP S5562990 A JPS5562990 A JP S5562990A
Authority
JP
Japan
Prior art keywords
mixture
fluorescent substance
heated
producing
oxide
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
JP13583278A
Other languages
Japanese (ja)
Other versions
JPS5821945B2 (en
Inventor
Hisamichi Yamada
Atsushi Suzuki
Akira Yamamoto
Takeshi Kano
Toshikatsu Manabe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP53135832A priority Critical patent/JPS5821945B2/en
Priority to GB7938272A priority patent/GB2037800B/en
Priority to NL7908109A priority patent/NL7908109A/en
Priority to DE19792944815 priority patent/DE2944815A1/en
Publication of JPS5562990A publication Critical patent/JPS5562990A/en
Publication of JPS5821945B2 publication Critical patent/JPS5821945B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7767—Chalcogenides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

PURPOSE: To obtain a high-performance fluorescent substance by heating a mixture of a Tb- or Pr-incorporated rare earth metal oxide, a mixture or conpound capable of producing an alkali metal sulfide when heated, and a F- or Cl-carrying compound.
CONSTITUTION: The objective fluorescent substance of formula I (Ln is one or more of the elements selected from Y, Gd, La, and Lu; A is Pr or Tb or both; X is F or Cl or both; x is a value satisfying the equation: 0.00003≤x≤0.2; the content of the X being 2W1,000ppm). This substance can be prepared by heating a mixture of (A) an oxide of the formula II or a compound capable of producing the oxide when heated, (B) a mixture or compound capable of producing an alkali metal sulfide when heated, and (C) a F- or Cl-carrying compound. The component (B) is, e.g., a mixture of an alkali carbonate and sulfur. The component (C) is, e.g., NaSO3F, NaCl. The heating temperature is preferably 900W1,400°C.
COPYRIGHT: (C)1980,JPO&Japio
JP53135832A 1978-11-06 1978-11-06 Fluorescent material and its manufacturing method Expired JPS5821945B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP53135832A JPS5821945B2 (en) 1978-11-06 1978-11-06 Fluorescent material and its manufacturing method
GB7938272A GB2037800B (en) 1978-11-06 1979-11-05 Phosphor and process for preparation thereof
NL7908109A NL7908109A (en) 1978-11-06 1979-11-06 METHOD FOR PREPARING A FLUORESCENT SUBSTANCE
DE19792944815 DE2944815A1 (en) 1978-11-06 1979-11-06 LUMINAIRES AND METHOD FOR THEIR PRODUCTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53135832A JPS5821945B2 (en) 1978-11-06 1978-11-06 Fluorescent material and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS5562990A true JPS5562990A (en) 1980-05-12
JPS5821945B2 JPS5821945B2 (en) 1983-05-04

Family

ID=15160814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53135832A Expired JPS5821945B2 (en) 1978-11-06 1978-11-06 Fluorescent material and its manufacturing method

Country Status (4)

Country Link
JP (1) JPS5821945B2 (en)
DE (1) DE2944815A1 (en)
GB (1) GB2037800B (en)
NL (1) NL7908109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07289373A (en) * 1994-04-26 1995-11-07 Yamakou:Kk Folding type stand device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56151376A (en) * 1980-04-25 1981-11-24 Hitachi Ltd Radiation detector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51151687A (en) * 1975-06-23 1976-12-27 Toshiba Corp Fluorescent membrane
JPS5210786A (en) * 1975-07-15 1977-01-27 Rion Co Ltd Airplane-noise measuring method
JPS5221288A (en) * 1975-08-13 1977-02-17 Hitachi Ltd Manufacturing method of fluorescent substance
JPS5328146A (en) * 1976-08-26 1978-03-16 Roussel Uclaf Process for preparing optically active aresrolone

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51151687A (en) * 1975-06-23 1976-12-27 Toshiba Corp Fluorescent membrane
JPS5210786A (en) * 1975-07-15 1977-01-27 Rion Co Ltd Airplane-noise measuring method
JPS5221288A (en) * 1975-08-13 1977-02-17 Hitachi Ltd Manufacturing method of fluorescent substance
JPS5328146A (en) * 1976-08-26 1978-03-16 Roussel Uclaf Process for preparing optically active aresrolone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07289373A (en) * 1994-04-26 1995-11-07 Yamakou:Kk Folding type stand device

Also Published As

Publication number Publication date
DE2944815A1 (en) 1980-05-08
GB2037800A (en) 1980-07-16
GB2037800B (en) 1983-02-16
JPS5821945B2 (en) 1983-05-04
NL7908109A (en) 1980-05-08

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