JPS55161349A - Metal halide lamp - Google Patents

Metal halide lamp

Info

Publication number
JPS55161349A
JPS55161349A JP7022479A JP7022479A JPS55161349A JP S55161349 A JPS55161349 A JP S55161349A JP 7022479 A JP7022479 A JP 7022479A JP 7022479 A JP7022479 A JP 7022479A JP S55161349 A JPS55161349 A JP S55161349A
Authority
JP
Japan
Prior art keywords
iodide
bulb
thorium
scandium
luminous
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
JP7022479A
Other languages
Japanese (ja)
Inventor
Satoru Kono
Akihiro Kamiya
Shinji Mochimaru
Bungo Nakahara
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 JP7022479A priority Critical patent/JPS55161349A/en
Publication of JPS55161349A publication Critical patent/JPS55161349A/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To improve light efficiency and lower starting voltage by properly setting the ratio of thorium iodide and scandium iodide in a luminous tube. CONSTITUTION:Electrodes 2, 2 and an auxiliary electrode 3 are sealed in a bulb 1 made of quartz glass, and a luminous bulb is formed. In this luminous bulb, scandium, sodium, thorium, iodine, mercury, and rare gas for starting are sealed. The mol ratio of thorium iodide and scandium iodide (ThI4/ScI3) in the luminous bulb is set at less than 0.1.
JP7022479A 1979-06-05 1979-06-05 Metal halide lamp Pending JPS55161349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7022479A JPS55161349A (en) 1979-06-05 1979-06-05 Metal halide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7022479A JPS55161349A (en) 1979-06-05 1979-06-05 Metal halide lamp

Publications (1)

Publication Number Publication Date
JPS55161349A true JPS55161349A (en) 1980-12-15

Family

ID=13425357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7022479A Pending JPS55161349A (en) 1979-06-05 1979-06-05 Metal halide lamp

Country Status (1)

Country Link
JP (1) JPS55161349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63136454A (en) * 1986-10-06 1988-06-08 ゼネラル・エレクトリック・カンパニイ Metal halide lamp sealed with halide composition for controlling characteristic of light emitting tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63136454A (en) * 1986-10-06 1988-06-08 ゼネラル・エレクトリック・カンパニイ Metal halide lamp sealed with halide composition for controlling characteristic of light emitting tube

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