JPS56106988A - Luminous material - Google Patents
Luminous materialInfo
- Publication number
- JPS56106988A JPS56106988A JP907480A JP907480A JPS56106988A JP S56106988 A JPS56106988 A JP S56106988A JP 907480 A JP907480 A JP 907480A JP 907480 A JP907480 A JP 907480A JP S56106988 A JPS56106988 A JP S56106988A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- moles
- incorporating
- luminous material
- weight ratio
- 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)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
PURPOSE: To novel luminous material for excitation with low-speed electron rays, exhibiting red emission, capable of imparting the electric conductivity to a fluorescent substance, and prepared by incorporating a fluorescent substance activated with Eu with an electric ally conductive material of indium oxide doped with tin at a specific weight ratio.
CONSTITUTION: A luminous material prepared by incorporating (A) one or more types of yttrium lanthanum gadolinium oxide (oxysulfide and vanadate) fluorescent substances activated with Eu expressed by (a) formula I (0≤x≤1; 0≤y≤1; x+ y≤1), (b) formula II and (c) formula III with (B) an electrically conductive material of indium oxide doped with tin expressed by formula IV (0.008≤x≤0.1) at a weight ratio between the components (A) and (B) of 14:1W1:14. The component (a) in the component (A) is obtained as follows: (1-x-y) moles Y3O3, x moles La2O3, y moles Gd2O3 and a necessary amount of Eu2O3 are dissolved in nitric acid, coprecipitating them with oxalic acid, and heating the precipitate in air into a mixed powder. The resultant powder is then mixed with B2O3, Na2CO3, etc. and calcined in air at 1,000°C or above.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP907480A JPS5943073B2 (en) | 1980-01-29 | 1980-01-29 | luminescent material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP907480A JPS5943073B2 (en) | 1980-01-29 | 1980-01-29 | luminescent material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56106988A true JPS56106988A (en) | 1981-08-25 |
JPS5943073B2 JPS5943073B2 (en) | 1984-10-19 |
Family
ID=11710452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP907480A Expired JPS5943073B2 (en) | 1980-01-29 | 1980-01-29 | luminescent material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5943073B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH048621Y2 (en) * | 1985-04-17 | 1992-03-04 |
-
1980
- 1980-01-29 JP JP907480A patent/JPS5943073B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5943073B2 (en) | 1984-10-19 |
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