JPS5628280A - Fluorescent substance of calcium halophosphate - Google Patents
Fluorescent substance of calcium halophosphateInfo
- Publication number
- JPS5628280A JPS5628280A JP10357879A JP10357879A JPS5628280A JP S5628280 A JPS5628280 A JP S5628280A JP 10357879 A JP10357879 A JP 10357879A JP 10357879 A JP10357879 A JP 10357879A JP S5628280 A JPS5628280 A JP S5628280A
- Authority
- JP
- Japan
- Prior art keywords
- magnesium
- fluorescent substance
- calcium halophosphate
- calcium
- amount
- 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.)
- Pending
Links
Landscapes
- Luminescent Compositions (AREA)
Abstract
PURPOSE: A fluorescent substance of calcium halophosphate, suitable for a fluorescent lamp for lighting, having improved initial emission efficiency and its retention, and comprising a specific amount of magnesium.
CONSTITUTION: A fluorescent substance comprising 10W400ppm magnesium, e.g. magnesium oxide, carbonate, chloride or fluoride. The amount of magnesium must be controlled at a prescribed value when impurities are contained in the fluorescent substance composition. A prescribed amount of magnesium must be added to a material containing no magnesium, and magnesium is also added to a calcium halophosphate fluorescent substance wherein calcium is partly substituted by zinc or barium.
EFFECT: The initial emission efficiency and its retention are improved by 0.5W2.5% and 1.5W2% as compared with the absence of magnesium.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10357879A JPS5628280A (en) | 1979-08-16 | 1979-08-16 | Fluorescent substance of calcium halophosphate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10357879A JPS5628280A (en) | 1979-08-16 | 1979-08-16 | Fluorescent substance of calcium halophosphate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5628280A true JPS5628280A (en) | 1981-03-19 |
Family
ID=14357660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10357879A Pending JPS5628280A (en) | 1979-08-16 | 1979-08-16 | Fluorescent substance of calcium halophosphate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5628280A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60216395A (en) * | 1984-04-12 | 1985-10-29 | 松下電器産業株式会社 | Voice analyzer/synthesizer |
US6483234B1 (en) | 2000-08-30 | 2002-11-19 | Koninklijke Philips Electronics N.V. | Single-component arctic bright calcium halophosphate phosphor |
CN102453484A (en) * | 2010-10-15 | 2012-05-16 | 奇美实业股份有限公司 | Phosphor and luminescence device |
-
1979
- 1979-08-16 JP JP10357879A patent/JPS5628280A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60216395A (en) * | 1984-04-12 | 1985-10-29 | 松下電器産業株式会社 | Voice analyzer/synthesizer |
US6483234B1 (en) | 2000-08-30 | 2002-11-19 | Koninklijke Philips Electronics N.V. | Single-component arctic bright calcium halophosphate phosphor |
CN102453484A (en) * | 2010-10-15 | 2012-05-16 | 奇美实业股份有限公司 | Phosphor and luminescence device |
CN102453484B (en) * | 2010-10-15 | 2015-03-25 | 奇美实业股份有限公司 | Phosphor and luminescence device |
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