JPS5468784A - Fluorescent substance - Google Patents
Fluorescent substanceInfo
- Publication number
- JPS5468784A JPS5468784A JP13479577A JP13479577A JPS5468784A JP S5468784 A JPS5468784 A JP S5468784A JP 13479577 A JP13479577 A JP 13479577A JP 13479577 A JP13479577 A JP 13479577A JP S5468784 A JPS5468784 A JP S5468784A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent substance
- aluminum phosphate
- phosphate
- activtaed
- alumnum
- 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 provide a fluorescent substance having enhanced temp. dependence of luminance and a specific compsn. of Tb-activated aluminum phosphate of at least one of Y, Gd and La.
CONSTITUTION: The fluorescent substance is represented by formula I (where Re is at least one of Y, Gd and La, 0.25≤n≤1,3, 0.01≤x≤0.5, 0≤y≤0.3 and 0≤z≤ 0.9). Part of Al and P of the Tb-activtaed aluminum phosphate may be replaced by Si, and Ce may be substituted for part of Re as coactivator. The fluorescent substance is easily produced by a usual metode. For example, oxide, carbonate, nitrate, etc. of Re consisting of at least one of Y, Ga and La, Tb and optionally Ce, and alumnum phosphate are blended with SiO2 and a flux if desired, finely pulverized, uniformly mixed, and calcined.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13479577A JPS5945023B2 (en) | 1977-11-11 | 1977-11-11 | fluorescent material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13479577A JPS5945023B2 (en) | 1977-11-11 | 1977-11-11 | fluorescent material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5468784A true JPS5468784A (en) | 1979-06-02 |
JPS5945023B2 JPS5945023B2 (en) | 1984-11-02 |
Family
ID=15136707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13479577A Expired JPS5945023B2 (en) | 1977-11-11 | 1977-11-11 | fluorescent material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5945023B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4565948A (en) * | 1981-06-18 | 1986-01-21 | Tokyo Shibaura Denki Kabushiki Kaisha | Fluorescent lamp |
US4629582A (en) * | 1981-06-16 | 1986-12-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Green-emitting phosphor |
-
1977
- 1977-11-11 JP JP13479577A patent/JPS5945023B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4629582A (en) * | 1981-06-16 | 1986-12-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Green-emitting phosphor |
US4565948A (en) * | 1981-06-18 | 1986-01-21 | Tokyo Shibaura Denki Kabushiki Kaisha | Fluorescent lamp |
Also Published As
Publication number | Publication date |
---|---|
JPS5945023B2 (en) | 1984-11-02 |
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