JPS5589381A - Treatment of fluorescent substance emitting light in electric field - Google Patents
Treatment of fluorescent substance emitting light in electric fieldInfo
- Publication number
- JPS5589381A JPS5589381A JP16260978A JP16260978A JPS5589381A JP S5589381 A JPS5589381 A JP S5589381A JP 16260978 A JP16260978 A JP 16260978A JP 16260978 A JP16260978 A JP 16260978A JP S5589381 A JPS5589381 A JP S5589381A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- electric field
- emitting light
- substance
- treatment
- 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
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: To remove copper sulfide deposited on the surface of the title copper- activated sulfide-type fluorescent substance completely, and to obtain the emission of high brightness, by washing the substance with a non-toxic aqueous solution of an oxidizing agent.
CONSTITUTION: A sulfide-type fluorescent substance comprising calcined active copper as an activator, emitting light in an electric field, is washed with an aqueous solution of an oxidizing agent, e.g. hedrogen peroxide, once to several times.
EFFECT: The reflection spectrum of the substance (a) treated by this method is much better than those (b) before washing and (c) treated by the conventional method.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16260978A JPS5589381A (en) | 1978-12-27 | 1978-12-27 | Treatment of fluorescent substance emitting light in electric field |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16260978A JPS5589381A (en) | 1978-12-27 | 1978-12-27 | Treatment of fluorescent substance emitting light in electric field |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5589381A true JPS5589381A (en) | 1980-07-05 |
JPS619994B2 JPS619994B2 (en) | 1986-03-27 |
Family
ID=15757842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16260978A Granted JPS5589381A (en) | 1978-12-27 | 1978-12-27 | Treatment of fluorescent substance emitting light in electric field |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589381A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5009808A (en) * | 1988-12-27 | 1991-04-23 | Gte Products Corporation | Process for producing electroluminescent yellow zinc sulfide phosphors |
JP2006188692A (en) * | 2004-12-28 | 2006-07-20 | Osram Sylvania Inc | Electroluminescent phosphor |
WO2008024061A1 (en) * | 2006-08-25 | 2008-02-28 | Abb Research Ltd | A method of removing unwanted sulphur compounds from the insulating oil of an electrical apparatus |
-
1978
- 1978-12-27 JP JP16260978A patent/JPS5589381A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5009808A (en) * | 1988-12-27 | 1991-04-23 | Gte Products Corporation | Process for producing electroluminescent yellow zinc sulfide phosphors |
JP2006188692A (en) * | 2004-12-28 | 2006-07-20 | Osram Sylvania Inc | Electroluminescent phosphor |
WO2008024061A1 (en) * | 2006-08-25 | 2008-02-28 | Abb Research Ltd | A method of removing unwanted sulphur compounds from the insulating oil of an electrical apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS619994B2 (en) | 1986-03-27 |
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