JPS55129482A - Fluorescent material and its preparation - Google Patents

Fluorescent material and its preparation

Info

Publication number
JPS55129482A
JPS55129482A JP3688779A JP3688779A JPS55129482A JP S55129482 A JPS55129482 A JP S55129482A JP 3688779 A JP3688779 A JP 3688779A JP 3688779 A JP3688779 A JP 3688779A JP S55129482 A JPS55129482 A JP S55129482A
Authority
JP
Japan
Prior art keywords
fluorescent material
pref
halogen
preparation
amount
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
JP3688779A
Other languages
Japanese (ja)
Other versions
JPS604855B2 (en
Inventor
Shinkichi Tanimizu
Masaki Nakano
Teruki Suzuki
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 JP54036887A priority Critical patent/JPS604855B2/en
Priority to US06/134,674 priority patent/US4353808A/en
Publication of JPS55129482A publication Critical patent/JPS55129482A/en
Publication of JPS604855B2 publication Critical patent/JPS604855B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prepare an Eu-doped halo-phosphate fluorescent material which emits fluorescent light having mainly blue spectrum, in high efficiency and stimmulation purity.
CONSTITUTION: A fluorescent material of formula (MII is Zn, Mg, Ca, or Ba; MIII is Al, Y, La, or Gd; M' is Ca, Sr, or Ba; X is halogen; z is 0.0015W0.20; x is 0W0.999; y is 0W0.999; x+y+z≤1) is prepared by mixing the above elements as halides, wherein the ratio of a/b is 0.3W1.2 and the amount of the halogen is in excess of the stoichiometric amount (pref. 1.25W3.5 times), and calcining the mixture in a reducing atmosphere (pref. at 900W1300°C).
COPYRIGHT: (C)1980,JPO&Japio
JP54036887A 1979-03-30 1979-03-30 phosphor Expired JPS604855B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54036887A JPS604855B2 (en) 1979-03-30 1979-03-30 phosphor
US06/134,674 US4353808A (en) 1979-03-30 1980-03-27 Phosphors and process for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54036887A JPS604855B2 (en) 1979-03-30 1979-03-30 phosphor

Publications (2)

Publication Number Publication Date
JPS55129482A true JPS55129482A (en) 1980-10-07
JPS604855B2 JPS604855B2 (en) 1985-02-07

Family

ID=12482281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54036887A Expired JPS604855B2 (en) 1979-03-30 1979-03-30 phosphor

Country Status (1)

Country Link
JP (1) JPS604855B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755159A (en) * 1980-09-18 1982-04-01 Olympus Optical Co Microwave device for endoscope
JPH03152853A (en) * 1989-11-08 1991-06-28 Nichia Chem Ind Ltd Fluorescent lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63169439A (en) * 1986-12-31 1988-07-13 Atsushi Miyata Bathwater circulating and temperature keeping device attachable in bathroom

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833159A (en) * 1971-08-26 1973-05-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833159A (en) * 1971-08-26 1973-05-08

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755159A (en) * 1980-09-18 1982-04-01 Olympus Optical Co Microwave device for endoscope
JPS631065B2 (en) * 1980-09-18 1988-01-11 Olympus Optical Co
JPH03152853A (en) * 1989-11-08 1991-06-28 Nichia Chem Ind Ltd Fluorescent lamp
JP2543207B2 (en) * 1989-11-08 1996-10-16 日亜化学工業株式会社 Fluorescent lamp

Also Published As

Publication number Publication date
JPS604855B2 (en) 1985-02-07

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