JPS5648064A - Gas discharge lamp - Google Patents

Gas discharge lamp

Info

Publication number
JPS5648064A
JPS5648064A JP12364679A JP12364679A JPS5648064A JP S5648064 A JPS5648064 A JP S5648064A JP 12364679 A JP12364679 A JP 12364679A JP 12364679 A JP12364679 A JP 12364679A JP S5648064 A JPS5648064 A JP S5648064A
Authority
JP
Japan
Prior art keywords
gas discharge
discharge lamp
lamp
electrically
voltage
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
JP12364679A
Other languages
Japanese (ja)
Inventor
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 JP12364679A priority Critical patent/JPS5648064A/en
Publication of JPS5648064A publication Critical patent/JPS5648064A/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
    • H01J61/92—Lamps with more than one main discharge path

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To prevent a lamp from failing completely by providing two gas discharge lamps connected electrically in parallel in an outer tube. CONSTITUTION:Two gas discharge lamps 1, 2 are provided in an outer tube 22. The gas discharge lamp 1 is for high voltage discharge, and the gas discharge lamp 2 is connected to the discharge lamp 1 electrically in parallel. An impedance element 7 is connected to the gas discharge lamp 2 electrically in series, and the relation between the terminal voltage V0 of a circuit including the gas discharge lamp 2 and impedance element 7 and the light starting voltage Vs is so established that it satisfys Vo>=Vs. The gas discharge lamp 1 is lighted by connecting the gas discharge lamp 25 to a source 24 through a stabilizer 23. When the discharge lamp 1 fails to light due to a depression of the source voltage, the gas discharge lamp 2 starts to light.
JP12364679A 1979-09-26 1979-09-26 Gas discharge lamp Pending JPS5648064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12364679A JPS5648064A (en) 1979-09-26 1979-09-26 Gas discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12364679A JPS5648064A (en) 1979-09-26 1979-09-26 Gas discharge lamp

Publications (1)

Publication Number Publication Date
JPS5648064A true JPS5648064A (en) 1981-05-01

Family

ID=14865740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12364679A Pending JPS5648064A (en) 1979-09-26 1979-09-26 Gas discharge lamp

Country Status (1)

Country Link
JP (1) JPS5648064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037201C2 (en) * 2009-08-13 2011-02-15 J M Geluk Beheer B V Gas discharge type lighting device.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037201C2 (en) * 2009-08-13 2011-02-15 J M Geluk Beheer B V Gas discharge type lighting device.

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