JPS5628280A - Fluorescent substance of calcium halophosphate - Google Patents

Fluorescent substance of calcium halophosphate

Info

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
Application number
JP10357879A
Other languages
Japanese (ja)
Inventor
Masao Asada
Yoshio Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10357879A priority Critical patent/JPS5628280A/en
Publication of JPS5628280A publication Critical patent/JPS5628280A/en
Pending legal-status Critical Current

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  • 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
JP10357879A 1979-08-16 1979-08-16 Fluorescent substance of calcium halophosphate Pending JPS5628280A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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