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JPS56123659A - Metal-halide lamp - Google Patents

Metal-halide lamp

Info

Publication number
JPS56123659A
JPS56123659A JP2700480A JP2700480A JPS56123659A JP S56123659 A JPS56123659 A JP S56123659A JP 2700480 A JP2700480 A JP 2700480A JP 2700480 A JP2700480 A JP 2700480A JP S56123659 A JPS56123659 A JP S56123659A
Authority
JP
Japan
Prior art keywords
closed
tube
vacuum
contact
thermo
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
JP2700480A
Other languages
Japanese (ja)
Inventor
Masahiko Asakura
Akihiro Inoue
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 JP2700480A priority Critical patent/JPS56123659A/en
Publication of JPS56123659A publication Critical patent/JPS56123659A/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 prevent chattering of a vacuum closed type normally closed thermo- contact and ensure its certain starting by connecting the vacuum closed type normally closed thermo-contact and a current blocking member such as a glow starter type ignition tube between a pair of auxiliary filaments for starting. CONSTITUTION:A luminous tube 2 is arranged in an outside tube 1, and the main electrodes 3 and 4 of the tube 2 are connected to a stabilizer 12, and also connected to the auxiliary filaments 5 and 6 for starting respectively. Between the filaments 5 and 6, and in a vacuum vessel 9 is connected a series circuit consisting of a current blocking member 8 such as a glow starter type ignition tube 10 and a vacuum closed type normally closed thermo-contact 7 accommodating a usually closed bimetal switch 10 and a heater 11. Therefore, when the switch 7 is restored and closed, current does not flow in the circuit, so chattering can be eliminated, and the breakdown of the insulation of instruments due to high voltage in restarting can be prevented certainly.
JP2700480A 1980-03-04 1980-03-04 Metal-halide lamp Pending JPS56123659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2700480A JPS56123659A (en) 1980-03-04 1980-03-04 Metal-halide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2700480A JPS56123659A (en) 1980-03-04 1980-03-04 Metal-halide lamp

Publications (1)

Publication Number Publication Date
JPS56123659A true JPS56123659A (en) 1981-09-28

Family

ID=12208973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2700480A Pending JPS56123659A (en) 1980-03-04 1980-03-04 Metal-halide lamp

Country Status (1)

Country Link
JP (1) JPS56123659A (en)

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