JPS57168464A - High pressure electric-discharge lamp - Google Patents

High pressure electric-discharge lamp

Info

Publication number
JPS57168464A
JPS57168464A JP5348781A JP5348781A JPS57168464A JP S57168464 A JPS57168464 A JP S57168464A JP 5348781 A JP5348781 A JP 5348781A JP 5348781 A JP5348781 A JP 5348781A JP S57168464 A JPS57168464 A JP S57168464A
Authority
JP
Japan
Prior art keywords
high pressure
discharge lamp
quartz glass
foil
main electrode
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
JP5348781A
Other languages
Japanese (ja)
Inventor
Ryo Suzuki
Keiji Watabe
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 JP5348781A priority Critical patent/JPS57168464A/en
Publication of JPS57168464A publication Critical patent/JPS57168464A/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 facilitate greatly the discharge initiation of a high pressure electric- discharge lamp by sealing airtightly a metal foil by use of a quartz glass to make a starting auxiliary body, connecting one end of the metal foil to one of the main electrodes so that they have the same electric potential, and installing the said auxiliary body close to the emission tube. CONSTITUTION:A starting auxiliary body 15 is provided near an emission tube 1 used for a high pressure electric-discharge lamp. The body 15 is prepared by charging a metal foil 16 airtightly in a quartz glass 17 except one end of the foil 16, and the end of the foil 16 is connected to a main electrode 2 so that they have the same electric potential. The shortest distance between the outer wall of the tube 1 and the body 15 is adjusted to below 7mm.. Owing to the quartz glass 17, charged particles existing around a main electrode 3 and drawn by the body 15 don't concentrate on the body 15 and come to extend easily toward the main electrode 2 along the body 15. Consequently, the starting voltage can be reduced and the restarting time can be shortened without deteriorating the life of the lamp.
JP5348781A 1981-04-09 1981-04-09 High pressure electric-discharge lamp Pending JPS57168464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5348781A JPS57168464A (en) 1981-04-09 1981-04-09 High pressure electric-discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5348781A JPS57168464A (en) 1981-04-09 1981-04-09 High pressure electric-discharge lamp

Publications (1)

Publication Number Publication Date
JPS57168464A true JPS57168464A (en) 1982-10-16

Family

ID=12944195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5348781A Pending JPS57168464A (en) 1981-04-09 1981-04-09 High pressure electric-discharge lamp

Country Status (1)

Country Link
JP (1) JPS57168464A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048133A1 (en) * 1998-03-19 1999-09-23 Koninklijke Philips Electronics N.V. Unit comprising a short-arc discharge lamp with a starting antenna
US6960883B2 (en) 2001-12-28 2005-11-01 Ushio Denki Kabushiki Kaisya Flash lamp device and flash emitting device
KR100973119B1 (en) 2008-01-15 2010-07-29 우시오덴키 가부시키가이샤 Lamp unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048133A1 (en) * 1998-03-19 1999-09-23 Koninklijke Philips Electronics N.V. Unit comprising a short-arc discharge lamp with a starting antenna
US6960883B2 (en) 2001-12-28 2005-11-01 Ushio Denki Kabushiki Kaisya Flash lamp device and flash emitting device
KR100973119B1 (en) 2008-01-15 2010-07-29 우시오덴키 가부시키가이샤 Lamp unit

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