JPS5578456A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS5578456A
JPS5578456A JP15153778A JP15153778A JPS5578456A JP S5578456 A JPS5578456 A JP S5578456A JP 15153778 A JP15153778 A JP 15153778A JP 15153778 A JP15153778 A JP 15153778A JP S5578456 A JPS5578456 A JP S5578456A
Authority
JP
Japan
Prior art keywords
luminance
fluorescent lamp
high efficiency
glass tube
europium
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
JP15153778A
Other languages
Japanese (ja)
Inventor
Haruo Shibata
Osamu Takano
Yoshinori Otaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP15153778A priority Critical patent/JPS5578456A/en
Publication of JPS5578456A publication Critical patent/JPS5578456A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE: To raise the color rendition of a fluorescent lamp while maintaing high efficiency by reducing the luminance of antimony practically to zero and using calcium halophosphate phosphor of high efficiency yellow luminance mostly of manganess luminance.
CONSTITUTION: 510g of calcium halophosphate of high efficiency yellow luminance having a chromaticity co-ordinates; x=0.447, y=0.450, 260g of europium and manganese activated barium manganese aluminate and 130g of europium activated yttrium vanadate are mixed well. 6.5g of the mixture is applied to the inner surface of a 40W-glass tube, dried and baked to form a phosphor film 2 over the inner surface of the 40W-glass tube which is processed to produce a fluorescent lamp.
COPYRIGHT: (C)1980,JPO&Japio
JP15153778A 1978-12-06 1978-12-06 Fluorescent lamp Pending JPS5578456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15153778A JPS5578456A (en) 1978-12-06 1978-12-06 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15153778A JPS5578456A (en) 1978-12-06 1978-12-06 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5578456A true JPS5578456A (en) 1980-06-13

Family

ID=15520672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15153778A Pending JPS5578456A (en) 1978-12-06 1978-12-06 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5578456A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054174A (en) * 1973-09-10 1975-05-13
JPS5348380A (en) * 1976-10-14 1978-05-01 Toshiba Corp Fluorescent lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054174A (en) * 1973-09-10 1975-05-13
JPS5348380A (en) * 1976-10-14 1978-05-01 Toshiba Corp Fluorescent lamp

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