JPS57147581A - Green emitting fluorescent substance and its preparation - Google Patents
Green emitting fluorescent substance and its preparationInfo
- Publication number
- JPS57147581A JPS57147581A JP3346481A JP3346481A JPS57147581A JP S57147581 A JPS57147581 A JP S57147581A JP 3346481 A JP3346481 A JP 3346481A JP 3346481 A JP3346481 A JP 3346481A JP S57147581 A JPS57147581 A JP S57147581A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- zinc
- oxide
- terbium
- dysprosium
- 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 green emitting fluorescent substance useful for a cathode ray tube for color television, exhibiting an emission with high luminance, obtained by adding a specific amount of zinc to a fluorescent substance of oxysulfide of a rare earth element activated with terbium and dysprosium, shown by a specific formula.
CONSTITUTION: A raw material mixture (e.g., a mixture of yttrium oxide, terbium oxide, dysprosium oxide, sulfur, sodium carbonate) of a fluorescent substance of oxysulfide of a rare earth element activated with terbium and dysprosium, shown by the formula (Ln is Y, Gd, La, or Lu; 0.001≤p≤0.1, 0.00005≤q≤ 0.02) is blended with ≤14,000ppm (preferably 300W14,000ppm) zinc as a zinc compound (e.g., zinc sulfide, zinc oxide, etc.), to give the desired fluorescent substance containing ≤40ppm (preferably 10W40ppm).
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3346481A JPS57147581A (en) | 1981-03-09 | 1981-03-09 | Green emitting fluorescent substance and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3346481A JPS57147581A (en) | 1981-03-09 | 1981-03-09 | Green emitting fluorescent substance and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57147581A true JPS57147581A (en) | 1982-09-11 |
| JPH0129834B2 JPH0129834B2 (en) | 1989-06-14 |
Family
ID=12387258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3346481A Granted JPS57147581A (en) | 1981-03-09 | 1981-03-09 | Green emitting fluorescent substance and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57147581A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299409A2 (en) * | 1987-07-16 | 1989-01-18 | Kasei Optonix, Ltd. | Radiographic intensifying screen |
| JPH01165690A (en) * | 1987-12-22 | 1989-06-29 | Nichia Chem Ind Ltd | Phosphor and x-ray intensifying screen prepared by using the same |
| DE10228138B4 (en) * | 2001-06-25 | 2017-07-13 | Kasei Optonix, Ltd. | Gadolinium oxysulfide phosphor for digital radiography, radiographic image conversion screen and radiograph-forming device |
-
1981
- 1981-03-09 JP JP3346481A patent/JPS57147581A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299409A2 (en) * | 1987-07-16 | 1989-01-18 | Kasei Optonix, Ltd. | Radiographic intensifying screen |
| JPH01165690A (en) * | 1987-12-22 | 1989-06-29 | Nichia Chem Ind Ltd | Phosphor and x-ray intensifying screen prepared by using the same |
| DE10228138B4 (en) * | 2001-06-25 | 2017-07-13 | Kasei Optonix, Ltd. | Gadolinium oxysulfide phosphor for digital radiography, radiographic image conversion screen and radiograph-forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0129834B2 (en) | 1989-06-14 |
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