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JPS5632582A - Method for increasing intensity of light emission of fluorescent material - Google Patents

Method for increasing intensity of light emission of fluorescent material

Info

Publication number
JPS5632582A
JPS5632582A JP10774279A JP10774279A JPS5632582A JP S5632582 A JPS5632582 A JP S5632582A JP 10774279 A JP10774279 A JP 10774279A JP 10774279 A JP10774279 A JP 10774279A JP S5632582 A JPS5632582 A JP S5632582A
Authority
JP
Japan
Prior art keywords
light emission
fluorescent material
intensity
treating
pressure
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.)
Pending
Application number
JP10774279A
Other languages
Japanese (ja)
Inventor
Jiro Shiokawa
Ginya Adachi
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.)
CHUGOKU TORYO KK
Chugoku Marine Paints Ltd
Original Assignee
CHUGOKU TORYO KK
Chugoku Marine Paints 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 CHUGOKU TORYO KK, Chugoku Marine Paints Ltd filed Critical CHUGOKU TORYO KK
Priority to JP10774279A priority Critical patent/JPS5632582A/en
Publication of JPS5632582A publication Critical patent/JPS5632582A/en
Pending legal-status Critical Current

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  • Luminescent Compositions (AREA)

Abstract

PURPOSE: To increase the intensity of light emission of a fluorescent material, remarkably (about 100 times), by treating the fluorescent material at specific high temperature and pressure.
CONSTITUTION: The intensity of light emission of a fluorescent material such as (Sr, Mg)2P2O7:Eu2+, etc. can be increased by 3W100 times by treating at 200W 1,200°C under a pressure of 500W50,000atm. for 1W6 hours. For example, SrCO3: Eu3+ obtained by the reaction of Sr(NO3)2 with a mixture of EuCl3 and (NH4)2 CO3, is mixed with H3BO3 thoroughly, and reacted in hydrogen stream at 1,000°C for 3 hours. The reaction product is ground to fine powder. The light emission intensity of the powder can be increased by about 100 times by treating at 700°C under a pressure of 30,000atm for 1 hour.
COPYRIGHT: (C)1981,JPO&Japio
JP10774279A 1979-08-23 1979-08-23 Method for increasing intensity of light emission of fluorescent material Pending JPS5632582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10774279A JPS5632582A (en) 1979-08-23 1979-08-23 Method for increasing intensity of light emission of fluorescent material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10774279A JPS5632582A (en) 1979-08-23 1979-08-23 Method for increasing intensity of light emission of fluorescent material

Publications (1)

Publication Number Publication Date
JPS5632582A true JPS5632582A (en) 1981-04-02

Family

ID=14466800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10774279A Pending JPS5632582A (en) 1979-08-23 1979-08-23 Method for increasing intensity of light emission of fluorescent material

Country Status (1)

Country Link
JP (1) JPS5632582A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163952A (en) * 1986-01-14 1987-07-20 Kobe Steel Ltd Surface defect detector
JPS62177436A (en) * 1986-01-31 1987-08-04 Toshiba Corp Inspecting device for transmittance
JP2002249769A (en) * 1996-09-20 2002-09-06 Siemens Ag Wavelength conversion casting material, method for producing the same, and light emitting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163952A (en) * 1986-01-14 1987-07-20 Kobe Steel Ltd Surface defect detector
JPS62177436A (en) * 1986-01-31 1987-08-04 Toshiba Corp Inspecting device for transmittance
JP2002249769A (en) * 1996-09-20 2002-09-06 Siemens Ag Wavelength conversion casting material, method for producing the same, and light emitting device
JP2008103756A (en) * 1996-09-20 2008-05-01 Siemens Ag Casting material, manufacturing method thereof, and light emitting device
JP2009071336A (en) * 1996-09-20 2009-04-02 Siemens Ag LED chip
JP2012238909A (en) * 1996-09-20 2012-12-06 Osram Ag Casting material, method of manufacturing the same, and light emitting element

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