JPS55124937A - Metal haloide lamp - Google Patents

Metal haloide lamp

Info

Publication number
JPS55124937A
JPS55124937A JP3301479A JP3301479A JPS55124937A JP S55124937 A JPS55124937 A JP S55124937A JP 3301479 A JP3301479 A JP 3301479A JP 3301479 A JP3301479 A JP 3301479A JP S55124937 A JPS55124937 A JP S55124937A
Authority
JP
Japan
Prior art keywords
lanthanium
thorium
scandium
yttrium
lamp
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
JP3301479A
Other languages
Japanese (ja)
Inventor
Satoru Kono
Akihiro Kamiya
Bungo Nakahara
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 JP3301479A priority Critical patent/JPS55124937A/en
Publication of JPS55124937A publication Critical patent/JPS55124937A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To suppress a rise of a starting voltage and lamp voltage of the lamp and decrease a deterioration of the luminous flux maintaining rate, by adding and sealing at least a kind of the lanthanium system rare earth metal, thorium, yttrium, scandium. CONSTITUTION:At both ends of a luminous tube bulb 1, are constructed crush sealed portions 2, 2. In the bulb 1, a pair of main electrodes 3, 3 are arranged apart in a face-to-face style to each other. In the bulb 1 are sealed a mercury, metal haloide and rare gas further added and sealed at least one kind among the lanthanium system rare earth metal, thorium, yttrium and scandium. The relation is made as follows. M>=3.0X10<-8>(gr atom/cc), log M>=18.1logN+77.6 where Ngr atom for mercury sealing quantity per unit volume and Mgr for sealing quantity of lanthanium system rare earth metal, thorium, yttrium, scandium metals per unit volume.
JP3301479A 1979-03-20 1979-03-20 Metal haloide lamp Pending JPS55124937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3301479A JPS55124937A (en) 1979-03-20 1979-03-20 Metal haloide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3301479A JPS55124937A (en) 1979-03-20 1979-03-20 Metal haloide lamp

Publications (1)

Publication Number Publication Date
JPS55124937A true JPS55124937A (en) 1980-09-26

Family

ID=12374950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3301479A Pending JPS55124937A (en) 1979-03-20 1979-03-20 Metal haloide lamp

Country Status (1)

Country Link
JP (1) JPS55124937A (en)

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