JPS5663764A - Metal vapor discharge lamp - Google Patents

Metal vapor discharge lamp

Info

Publication number
JPS5663764A
JPS5663764A JP14009379A JP14009379A JPS5663764A JP S5663764 A JPS5663764 A JP S5663764A JP 14009379 A JP14009379 A JP 14009379A JP 14009379 A JP14009379 A JP 14009379A JP S5663764 A JPS5663764 A JP S5663764A
Authority
JP
Japan
Prior art keywords
ballast
mercury
thermoresponsive element
thermoresponsive
outer tube
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
JP14009379A
Other languages
Japanese (ja)
Other versions
JPS6153827B2 (en
Inventor
Masahiro Dobashi
Ryo Suzuki
Katsuya Otani
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 JP14009379A priority Critical patent/JPS5663764A/en
Priority to NLAANVRAGE8002167,A priority patent/NL183069C/en
Priority to DE3015451A priority patent/DE3015451C2/en
Priority to GB8013988A priority patent/GB2050688B/en
Publication of JPS5663764A publication Critical patent/JPS5663764A/en
Priority to US06/407,697 priority patent/US4481446A/en
Publication of JPS6153827B2 publication Critical patent/JPS6153827B2/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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/06—Starting switches thermal only
    • H05B41/08—Starting switches thermal only heated by glow discharge

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To avoid the dielectric breakdown of a ballast or the like due to surge voltages, by filling mercury in the outer tube of a metal vapor discharge lamp equipped with a luminous tube and starting thermoresponsive element and allowing the thermoresponsive element to function in an atmosphere of the vapor of mercury. CONSTITUTION:In an outer tube 7 of a high pressure sodium lamp or the like, there are provided a luminous tube 1 and a thermoresponsive element 4 such as a bimetal switch or the like. The luminous tube 1 and termoresponsive element 4 are connected to a power source 9 through a ballast 8. The lamp is started and lighted by using a pulselike high voltage which occurs at the ballast 8 spontaneously upon an opening of the contact of the thermoresponsive element 4. Mercury is filled in the outer tube 7 while controlling its filling gas pressure not higher than 20 Torr. Thus, a part of a surge voltage which is produced upon an actuation of the thermoresponsive element 4 is consumed through a discharge caused at the contact of the element 4. This avoids occurrence of any annecessary high voltages, thereby protecting the ballast 8 or the like from damages due to dielectric breakdown.
JP14009379A 1979-04-26 1979-10-30 Metal vapor discharge lamp Granted JPS5663764A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP14009379A JPS5663764A (en) 1979-10-30 1979-10-30 Metal vapor discharge lamp
NLAANVRAGE8002167,A NL183069C (en) 1979-04-26 1980-04-15 METAL VAPOR DISCHARGE LAMP.
DE3015451A DE3015451C2 (en) 1979-04-26 1980-04-22 Metal vapor discharge lamp
GB8013988A GB2050688B (en) 1979-04-26 1980-04-28 Metal vapour discharge lamp
US06/407,697 US4481446A (en) 1979-04-26 1982-08-12 Metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14009379A JPS5663764A (en) 1979-10-30 1979-10-30 Metal vapor discharge lamp

Publications (2)

Publication Number Publication Date
JPS5663764A true JPS5663764A (en) 1981-05-30
JPS6153827B2 JPS6153827B2 (en) 1986-11-19

Family

ID=15260782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14009379A Granted JPS5663764A (en) 1979-04-26 1979-10-30 Metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS5663764A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798923A (en) * 1987-10-22 1989-01-17 American Telephone And Telegraph Company, At&T Bell Laboratories Latch/switch for securing a circuit modules into a housing with accompanying circuit switching

Also Published As

Publication number Publication date
JPS6153827B2 (en) 1986-11-19

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