JPS5454472A - High voltage metal vapor discharge lamp - Google Patents

High voltage metal vapor discharge lamp

Info

Publication number
JPS5454472A
JPS5454472A JP12111377A JP12111377A JPS5454472A JP S5454472 A JPS5454472 A JP S5454472A JP 12111377 A JP12111377 A JP 12111377A JP 12111377 A JP12111377 A JP 12111377A JP S5454472 A JPS5454472 A JP S5454472A
Authority
JP
Japan
Prior art keywords
luminous tube
spiral
electrodes
arc
ions
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
JP12111377A
Other languages
Japanese (ja)
Inventor
Isao Shoda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12111377A priority Critical patent/JPS5454472A/en
Publication of JPS5454472A publication Critical patent/JPS5454472A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE: To restrain arc and prevent swelling of luminous tube by installing spirals in the luminous tube in such a fashion as to enclose arc created between electrodes.
CONSTITUTION: Specified quantity of mercury, gallium iodide, and rare gas for starting is enclosed in luminous tube 1 made of light transmitting quartz which contains a pair of electrodes 2 located at both opposite ends, and spiral 3 made of quartz rods winded in circumferential direction is inserted so that both ends 3a are almost in contact with ends 2a of electrodes 2 and that they enclose the arc created between these electrodes 2. Because spiral 3 absorbs electrons and ions in the high temperature arc, the electric resistance in the neighborhood becomes greater, and the electrons and ions are prevented from dispersing further from spiral 3 when luminous tube 1 is lighted, thus preventing swelling of luminous tube 1. Wire diameter d1 is lmm ϕ or more, spiral space P is 5-40mm, ratio d21D between luminous tube inside diameter D and spiral body inside diameter d2 is 0.6 or more
COPYRIGHT: (C)1979,JPO&Japio
JP12111377A 1977-10-07 1977-10-07 High voltage metal vapor discharge lamp Pending JPS5454472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12111377A JPS5454472A (en) 1977-10-07 1977-10-07 High voltage metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12111377A JPS5454472A (en) 1977-10-07 1977-10-07 High voltage metal vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS5454472A true JPS5454472A (en) 1979-04-28

Family

ID=14803195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12111377A Pending JPS5454472A (en) 1977-10-07 1977-10-07 High voltage metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS5454472A (en)

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