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JPS5516370A - High voltage metal vapor gas discharge lamp - Google Patents

High voltage metal vapor gas discharge lamp

Info

Publication number
JPS5516370A
JPS5516370A JP8924578A JP8924578A JPS5516370A JP S5516370 A JPS5516370 A JP S5516370A JP 8924578 A JP8924578 A JP 8924578A JP 8924578 A JP8924578 A JP 8924578A JP S5516370 A JPS5516370 A JP S5516370A
Authority
JP
Japan
Prior art keywords
luminous tube
switch
filament
discharge lamp
gas discharge
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
JP8924578A
Other languages
Japanese (ja)
Other versions
JPS5939862B2 (en
Inventor
Isao Shoda
Shoji Origasa
Hitoshi Kodama
Hiroshi Ito
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 JP8924578A priority Critical patent/JPS5939862B2/en
Publication of JPS5516370A publication Critical patent/JPS5516370A/en
Publication of JPS5939862B2 publication Critical patent/JPS5939862B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To make the compensation operable for defective lighting as a gas discharge lamp, by connecting a series circuit, consisting of an auxiliary light source filament, a switch closing when not lighted a luminous tube and a switch closing when exceeding a lightable temperature, in parallel to the luminous tube. CONSTITUTION:Across power source terminals a, b, are connected in series an energizing coil 8 and main electrodes 3, 4 of a luminous tube 2, as well as connected a series circuit, consisting of a relay switch S17, an auxiliary light source filament 9 and a bimetal switch S210, in parallel to the luminous tube 2 for the power source. In this way, simultaneously with the luminous tube 2 going out, the switch is closed to construct a closed circuit, including the auxiliary light source filament 9 and the switch, for the power source, with the auxiliary filament 9 lighted, thus a defective lighting can be compensated during a time till the luminous tube becomes restartable.
JP8924578A 1978-07-21 1978-07-21 high pressure metal vapor discharge lamp Expired JPS5939862B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8924578A JPS5939862B2 (en) 1978-07-21 1978-07-21 high pressure metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8924578A JPS5939862B2 (en) 1978-07-21 1978-07-21 high pressure metal vapor discharge lamp

Publications (2)

Publication Number Publication Date
JPS5516370A true JPS5516370A (en) 1980-02-05
JPS5939862B2 JPS5939862B2 (en) 1984-09-26

Family

ID=13965357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8924578A Expired JPS5939862B2 (en) 1978-07-21 1978-07-21 high pressure metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS5939862B2 (en)

Also Published As

Publication number Publication date
JPS5939862B2 (en) 1984-09-26

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