JPS569959A - Metal halide lamp - Google Patents

Metal halide lamp

Info

Publication number
JPS569959A
JPS569959A JP8494579A JP8494579A JPS569959A JP S569959 A JPS569959 A JP S569959A JP 8494579 A JP8494579 A JP 8494579A JP 8494579 A JP8494579 A JP 8494579A JP S569959 A JPS569959 A JP S569959A
Authority
JP
Japan
Prior art keywords
ring
luminous bulb
metal halide
halide lamp
main electrodes
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
JP8494579A
Other languages
Japanese (ja)
Other versions
JPS643027B2 (en
Inventor
Hiromitsu Matsuno
Shunji Kazui
Mikiya Yamane
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8494579A priority Critical patent/JPS569959A/en
Publication of JPS569959A publication Critical patent/JPS569959A/en
Publication of JPS643027B2 publication Critical patent/JPS643027B2/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/10—Shields, screens, or guides for influencing the discharge

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To prevent the occurrence of snake phenomenon of arc nearly completely by a simple constitution of an additional provision of a ring in a luminous bulb. CONSTITUTION:Between main electrodes 2 and 3 in a luminous bulb 1, is supported by means of a support rod 6 a ring 5 having an inner diameter of 12mm. and made of a tungsten wire of 0.5mm. in diameter spacedly from the inner wall of the luminous bulb 1. The ring 5 is installed so as to enclose the arc formed between the main electrodes 2 and 3. At the side of the main electrode 2, an auxiliary electrode 4 is installed.
JP8494579A 1979-07-06 1979-07-06 Metal halide lamp Granted JPS569959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8494579A JPS569959A (en) 1979-07-06 1979-07-06 Metal halide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8494579A JPS569959A (en) 1979-07-06 1979-07-06 Metal halide lamp

Publications (2)

Publication Number Publication Date
JPS569959A true JPS569959A (en) 1981-01-31
JPS643027B2 JPS643027B2 (en) 1989-01-19

Family

ID=13844776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8494579A Granted JPS569959A (en) 1979-07-06 1979-07-06 Metal halide lamp

Country Status (1)

Country Link
JP (1) JPS569959A (en)

Also Published As

Publication number Publication date
JPS643027B2 (en) 1989-01-19

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