JPS57138768A - High pressure electric-discharge lamp - Google Patents

High pressure electric-discharge lamp

Info

Publication number
JPS57138768A
JPS57138768A JP2391181A JP2391181A JPS57138768A JP S57138768 A JPS57138768 A JP S57138768A JP 2391181 A JP2391181 A JP 2391181A JP 2391181 A JP2391181 A JP 2391181A JP S57138768 A JPS57138768 A JP S57138768A
Authority
JP
Japan
Prior art keywords
main electrode
high pressure
discharge lamp
starting auxiliary
pressure electric
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
JP2391181A
Other languages
Japanese (ja)
Inventor
Keiji Watabe
Ryo Suzuki
Masato Saito
Masahiro Dobashi
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 JP2391181A priority Critical patent/JPS57138768A/en
Publication of JPS57138768A publication Critical patent/JPS57138768A/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
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To reduce the discharge initiation voltage necessary for restarting a high pressure electric-discharge lamp by making the electric potential at the discharge initiation of an starting auxiliary body to be the same as that of one main electrode, and making the end of the starting auxiliary body to be a given distance apart from the other main electrode. CONSTITUTION:A starting auxiliary body 15 consists of a metal body 16 made of molybdenum wire and a cylindrical insulator 17, which is made of alumina porcelain and covers the metal body 16 except about 5mm. of its end. One end of the metal body 16 is electrically and mechanically connected to a supporting frame 4, which has the same electric potential as that of a main electrode 2, and the other end of the body 16 is made below 1.5mm. apart from a main electrode 3.
JP2391181A 1981-02-20 1981-02-20 High pressure electric-discharge lamp Pending JPS57138768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2391181A JPS57138768A (en) 1981-02-20 1981-02-20 High pressure electric-discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2391181A JPS57138768A (en) 1981-02-20 1981-02-20 High pressure electric-discharge lamp

Publications (1)

Publication Number Publication Date
JPS57138768A true JPS57138768A (en) 1982-08-27

Family

ID=12123660

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2391181A Pending JPS57138768A (en) 1981-02-20 1981-02-20 High pressure electric-discharge lamp

Country Status (1)

Country Link
JP (1) JPS57138768A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6960883B2 (en) 2001-12-28 2005-11-01 Ushio Denki Kabushiki Kaisya Flash lamp device and flash emitting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6960883B2 (en) 2001-12-28 2005-11-01 Ushio Denki Kabushiki Kaisya Flash lamp device and flash emitting device

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