JPS56168342A - High pressure electric discharge lamp - Google Patents

High pressure electric discharge lamp

Info

Publication number
JPS56168342A
JPS56168342A JP7201780A JP7201780A JPS56168342A JP S56168342 A JPS56168342 A JP S56168342A JP 7201780 A JP7201780 A JP 7201780A JP 7201780 A JP7201780 A JP 7201780A JP S56168342 A JPS56168342 A JP S56168342A
Authority
JP
Japan
Prior art keywords
coil
electric discharge
winding
luminous tube
electrodes
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
JP7201780A
Other languages
Japanese (ja)
Inventor
Keiji Watabe
Masahiro Dobashi
Ryo Suzuki
Masato Saito
Katsuya Otani
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 JP7201780A priority Critical patent/JPS56168342A/en
Publication of JPS56168342A publication Critical patent/JPS56168342A/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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To perform an easy start of electric discharge in a luminous tube and reduce a length of time required for its restart, by forming main electrodes in the luminous tube into the constitution with a coil and its winding end, extended in the inside of the coil toward an axial direction of winding, and heating the electrodes for a start of electric discharge. CONSTITUTION:A main electrode of a luminous tube is constituted by a spirally wound coil 22 made of tungsten or treated tungsten and an end wire 21 formed by extending a winding end of the coil 22 in the inside of the coil further toward an axial direction of coil winding. Though this electric discharge lamp starts electric discharge if voltage is applied across main electrodes and obtains a stable state of lighting, in case of a restart for the lamp after once turned off, the electrode 2 is kept in a heated state by flowing an electric current in between the end wire 21 of the main electrode and an end part 23 of the coil 22, and then voltage is applied to across the main electrodes to start electric discharge. Also for a normal start, the main electrode may be heated.
JP7201780A 1980-05-29 1980-05-29 High pressure electric discharge lamp Pending JPS56168342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7201780A JPS56168342A (en) 1980-05-29 1980-05-29 High pressure electric discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7201780A JPS56168342A (en) 1980-05-29 1980-05-29 High pressure electric discharge lamp

Publications (1)

Publication Number Publication Date
JPS56168342A true JPS56168342A (en) 1981-12-24

Family

ID=13477216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7201780A Pending JPS56168342A (en) 1980-05-29 1980-05-29 High pressure electric discharge lamp

Country Status (1)

Country Link
JP (1) JPS56168342A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906151B1 (en) 2008-01-29 2009-07-03 주식회사 새한텅스텐 A filament for electrode of hot cathode fluorescent lamp and the method manufacturing thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906151B1 (en) 2008-01-29 2009-07-03 주식회사 새한텅스텐 A filament for electrode of hot cathode fluorescent lamp and the method manufacturing thereof

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