JPS56168347A - High pressure electric discharge lamp - Google Patents

High pressure electric discharge lamp

Info

Publication number
JPS56168347A
JPS56168347A JP7201580A JP7201580A JPS56168347A JP S56168347 A JPS56168347 A JP S56168347A JP 7201580 A JP7201580 A JP 7201580A JP 7201580 A JP7201580 A JP 7201580A JP S56168347 A JPS56168347 A JP S56168347A
Authority
JP
Japan
Prior art keywords
thermally operated
heater
contact
thermally
operated element
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
JP7201580A
Other languages
Japanese (ja)
Inventor
Ryo Suzuki
Keiji Watabe
Masahiro Dobashi
Katsuya Otani
Masato Saito
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 JP7201580A priority Critical patent/JPS56168347A/en
Publication of JPS56168347A publication Critical patent/JPS56168347A/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
    • H01J61/56—One or more circuit elements structurally associated with the lamp

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To reduce a length of time required for the restart of a lamp after it is turned off, by providing a thermally operated switch which works not for a temperature rise in the whole body but for only when partially heated. CONSTITUTION:A thermally operated switch 14 is constituted by the first thermally operated element 16, the second thermally operated element 17, bimetal contact 19, contact bar 20 and lead wire 21. A heater 15 being set in the vicinity of the second thermally operated element 17 gives only a few amount of heat to the first thermally operated element 16. In lighting operation, electric conduction of the heater 15 causes the second thermally operated element 17 to raise its temperature with the contact 19 as left in an open state. And if a luminous tube 1 is turned off, the both thermally operated elements are at equal temperature to close the contact 19 then an electric current flows in the heater 15, filament 5 and thermally operated switch 14. Then the heating of the heater 15 causes the thermally operated switch 14 to open again, thus voltage is applied to across the main electrodes 2, 3 with the filament 5 in a red-heat state.
JP7201580A 1980-05-29 1980-05-29 High pressure electric discharge lamp Pending JPS56168347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7201580A JPS56168347A (en) 1980-05-29 1980-05-29 High pressure electric discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7201580A JPS56168347A (en) 1980-05-29 1980-05-29 High pressure electric discharge lamp

Publications (1)

Publication Number Publication Date
JPS56168347A true JPS56168347A (en) 1981-12-24

Family

ID=13477158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7201580A Pending JPS56168347A (en) 1980-05-29 1980-05-29 High pressure electric discharge lamp

Country Status (1)

Country Link
JP (1) JPS56168347A (en)

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