JPS56166284A - Fluorescent substance - Google Patents
Fluorescent substanceInfo
- Publication number
- JPS56166284A JPS56166284A JP7042980A JP7042980A JPS56166284A JP S56166284 A JPS56166284 A JP S56166284A JP 7042980 A JP7042980 A JP 7042980A JP 7042980 A JP7042980 A JP 7042980A JP S56166284 A JPS56166284 A JP S56166284A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- cerium
- formula
- expressed
- afterglow time
- 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: A novel fluorescent substance, consisting of sodium lanthanum thiogallate activated with cerium, having a short afterglow time, and particularly suitable for application to index color picture tubes.
CONSTITUTION: A fluorescent substance consisting of sodium lanthanum thiogallate activated with cerium and expressed by the formula Na0.5La0.5Ga2S4:Ce having the following characteristics: λmax:485nm; emission efficiency: 7%; afterglow time λ1/e: 40nsec. The fluorescent substance expressed by the formula Na0.5La0.5Ga2S4: Ce is prepared by mixing 0.5mol NaCl with 0.2375mol La2S3, 0.0125mol Ce2S3 and 1mol Ga2S3, and calcining the resultant mixture in a quartz boat in H2S gas at 900°C for 4hr.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7042980A JPS56166284A (en) | 1980-05-26 | 1980-05-26 | Fluorescent substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7042980A JPS56166284A (en) | 1980-05-26 | 1980-05-26 | Fluorescent substance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56166284A true JPS56166284A (en) | 1981-12-21 |
JPS6140276B2 JPS6140276B2 (en) | 1986-09-08 |
Family
ID=13431221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7042980A Granted JPS56166284A (en) | 1980-05-26 | 1980-05-26 | Fluorescent substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56166284A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5309070A (en) * | 1991-03-12 | 1994-05-03 | Sun Sey Shing | AC TFEL device having blue light emitting thiogallate phosphor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0423669Y2 (en) * | 1987-04-23 | 1992-06-02 | ||
JPH0423670Y2 (en) * | 1987-04-23 | 1992-06-02 |
-
1980
- 1980-05-26 JP JP7042980A patent/JPS56166284A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5309070A (en) * | 1991-03-12 | 1994-05-03 | Sun Sey Shing | AC TFEL device having blue light emitting thiogallate phosphor |
Also Published As
Publication number | Publication date |
---|---|
JPS6140276B2 (en) | 1986-09-08 |
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