JPS5442382A - Fluoroscent substance - Google Patents
Fluoroscent substanceInfo
- Publication number
- JPS5442382A JPS5442382A JP10164978A JP10164978A JPS5442382A JP S5442382 A JPS5442382 A JP S5442382A JP 10164978 A JP10164978 A JP 10164978A JP 10164978 A JP10164978 A JP 10164978A JP S5442382 A JPS5442382 A JP S5442382A
- Authority
- JP
- Japan
- Prior art keywords
- fluoroscent
- substance
- halide
- mef
- baking
- 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: Eu2+-activated composite halide fluoroscent substance, having high luminescence efficiency and excellent phosphor characteristics, which is composed of a specific compound activated by Eu2+ of the fluoride of an alkaline earth metal, the halide of an a lkaline earth metal, and a potassium halide.
CONSTITUTION: Fluoroscent substance having a composition represented by the formula 1, MeF2.xMe'X2.yKX':zEu2+, where Me and Me' are all at least one of the alkaline earth metals, Ba, Sr, and Ca, X and X' are all at least one of Cl and Br, and x, y, and z are, respectively, a number which meets the conditions, 0.80≤ x≤1.50, 0.33≤y≤1.50, and 0.001≤z≤0.20. A mixture of halides represented by MeF2, Me'X2, KX' and EuX"3 or Eu2O3 or a compound convertible into Eu2O3 at high temperatures, together with a flux, MgCl2, is filled into a heat-resistant vessel, and then baked at 600 to 1,000°C in a weak reductive atmosphere to convert Eu3+ into Eu2+. The baking is repeated under the same condition. After baking, washing, drying, and sieving made to manufacture desired fluoroscent substance.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10164978A JPS5442382A (en) | 1978-08-21 | 1978-08-21 | Fluoroscent substance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10164978A JPS5442382A (en) | 1978-08-21 | 1978-08-21 | Fluoroscent substance |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7526776A Division JPS5474290A (en) | 1976-06-25 | 1976-06-25 | Phopshor, method of making same, raoiation image converter, discharge lamp and cathode-ray tube employing same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5442382A true JPS5442382A (en) | 1979-04-04 |
JPS5757108B2 JPS5757108B2 (en) | 1982-12-02 |
Family
ID=14306218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10164978A Granted JPS5442382A (en) | 1978-08-21 | 1978-08-21 | Fluoroscent substance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5442382A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109899A (en) * | 1981-12-24 | 1983-06-30 | 富士写真フイルム株式会社 | Fluorescent agent and x-ray sensitizing paper |
JPS58109898A (en) * | 1981-12-24 | 1983-06-30 | 富士写真フイルム株式会社 | Fluorescent agent and x-ray sensitizing paper |
JPH0244028U (en) * | 1988-09-21 | 1990-03-27 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59164216A (en) * | 1983-03-08 | 1984-09-17 | Nissan Motor Co Ltd | Roof ventilator |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4942582A (en) * | 1972-05-24 | 1974-04-22 |
-
1978
- 1978-08-21 JP JP10164978A patent/JPS5442382A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4942582A (en) * | 1972-05-24 | 1974-04-22 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109899A (en) * | 1981-12-24 | 1983-06-30 | 富士写真フイルム株式会社 | Fluorescent agent and x-ray sensitizing paper |
JPS58109898A (en) * | 1981-12-24 | 1983-06-30 | 富士写真フイルム株式会社 | Fluorescent agent and x-ray sensitizing paper |
JPS6332112B2 (en) * | 1981-12-24 | 1988-06-28 | Fuji Photo Film Co Ltd | |
JPS6365119B2 (en) * | 1981-12-24 | 1988-12-14 | ||
JPH0244028U (en) * | 1988-09-21 | 1990-03-27 |
Also Published As
Publication number | Publication date |
---|---|
JPS5757108B2 (en) | 1982-12-02 |
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