JPS57152660A - Metal vapor electric-discharge lamp - Google Patents

Metal vapor electric-discharge lamp

Info

Publication number
JPS57152660A
JPS57152660A JP3771081A JP3771081A JPS57152660A JP S57152660 A JPS57152660 A JP S57152660A JP 3771081 A JP3771081 A JP 3771081A JP 3771081 A JP3771081 A JP 3771081A JP S57152660 A JPS57152660 A JP S57152660A
Authority
JP
Japan
Prior art keywords
lead wire
current
electric
discharge
limiting resistance
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.)
Granted
Application number
JP3771081A
Other languages
Japanese (ja)
Other versions
JPH03741B2 (en
Inventor
Akihiro Inoue
Akihiro Kamiya
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 JP3771081A priority Critical patent/JPS57152660A/en
Publication of JPS57152660A publication Critical patent/JPS57152660A/en
Publication of JPH03741B2 publication Critical patent/JPH03741B2/ja
Granted 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
    • H01J61/56—One or more circuit elements structurally associated with the lamp

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To prevent the fusing of the conductive members and the breakdown of the outer tube by constituting a metal vapor electric-discharge lamp so that the current of discharge in which a lead wire works as a luminous point always flows through a current-limiting resistance. CONSTITUTION:The distance between a lead wire 17b, which connects a lighting tube 15 and a current-limiting resistance 18, and another conductive member having an electric potential corresponding to that of the lead wire 17b is maintained to be smaller than the distance between the lead wire 17b and any other conductive member, which is installed within an outer tube 1 and has a different electric potential. The lead wire 17b becomes a luminous point all the time when pulse voltage develops outer tube electric discharge without causing any lighting of an emission tube 2. Since the current of the electric discharge, in which the lead wire 17b works as a luminous point, always flows through the current-limiting resistance 18, this electric discharge is stopped immediately after its development.
JP3771081A 1981-03-16 1981-03-16 Metal vapor electric-discharge lamp Granted JPS57152660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3771081A JPS57152660A (en) 1981-03-16 1981-03-16 Metal vapor electric-discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3771081A JPS57152660A (en) 1981-03-16 1981-03-16 Metal vapor electric-discharge lamp

Publications (2)

Publication Number Publication Date
JPS57152660A true JPS57152660A (en) 1982-09-21
JPH03741B2 JPH03741B2 (en) 1991-01-08

Family

ID=12505071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3771081A Granted JPS57152660A (en) 1981-03-16 1981-03-16 Metal vapor electric-discharge lamp

Country Status (1)

Country Link
JP (1) JPS57152660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6154149A (en) * 1984-08-22 1986-03-18 Mitsubishi Electric Corp Metallic vapor discharge lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155673A (en) * 1978-05-26 1979-12-07 Matsushita Electronics Corp High pressure sodium lamp
JPS5541650A (en) * 1978-09-18 1980-03-24 Toshiba Corp Metallic vapor discharge lamp
JPS55130061A (en) * 1979-03-30 1980-10-08 Mitsubishi Electric Corp Metal vapour discharge lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54155673A (en) * 1978-05-26 1979-12-07 Matsushita Electronics Corp High pressure sodium lamp
JPS5541650A (en) * 1978-09-18 1980-03-24 Toshiba Corp Metallic vapor discharge lamp
JPS55130061A (en) * 1979-03-30 1980-10-08 Mitsubishi Electric Corp Metal vapour discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6154149A (en) * 1984-08-22 1986-03-18 Mitsubishi Electric Corp Metallic vapor discharge lamp

Also Published As

Publication number Publication date
JPH03741B2 (en) 1991-01-08

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