JPS56116263A - Metal-vapor discharge lamp - Google Patents

Metal-vapor discharge lamp

Info

Publication number
JPS56116263A
JPS56116263A JP1940880A JP1940880A JPS56116263A JP S56116263 A JPS56116263 A JP S56116263A JP 1940880 A JP1940880 A JP 1940880A JP 1940880 A JP1940880 A JP 1940880A JP S56116263 A JPS56116263 A JP S56116263A
Authority
JP
Japan
Prior art keywords
electrode
luminous
metal
discharge lamp
heat
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
JP1940880A
Other languages
Japanese (ja)
Inventor
Katsuya Otani
Ryo Suzuki
Keiji Watabe
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 JP1940880A priority Critical patent/JPS56116263A/en
Publication of JPS56116263A publication Critical patent/JPS56116263A/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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To prevent any crack generation in the luminous-tube body near an electrode, by adjusting the distance between the end of the electrode and the outer surface of the luminous tube of a heat-proof metal belt to be over a given value. CONSTITUTION:A heat-resisting metal belt 18 is provided near an electrode 6 of a luminous-tube body 1. Here, the distance, amm., between the end of the electrode 6 and the heat-resisting metal belt 18 should be a>=0, and it is prefered to be a>= 2mm.. If a is adjusted to be a>=0, the crack generation in the luminous-tube body 1 near the electrode 6 is decreased; if a>=2, any crack generation can be prevented.
JP1940880A 1980-02-19 1980-02-19 Metal-vapor discharge lamp Pending JPS56116263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1940880A JPS56116263A (en) 1980-02-19 1980-02-19 Metal-vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1940880A JPS56116263A (en) 1980-02-19 1980-02-19 Metal-vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS56116263A true JPS56116263A (en) 1981-09-11

Family

ID=11998424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1940880A Pending JPS56116263A (en) 1980-02-19 1980-02-19 Metal-vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS56116263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582148A1 (en) * 1985-05-16 1986-11-21 Ushio Electric Inc DISCHARGE LAMP WITH CONTINUOUS CURRENT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582148A1 (en) * 1985-05-16 1986-11-21 Ushio Electric Inc DISCHARGE LAMP WITH CONTINUOUS CURRENT
US4673843A (en) * 1985-05-16 1987-06-16 Ushio Denki Kabushiki Kaisha DC discharge lamp

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