JPS5736768A - High pressure metallic vapor discharge lamp - Google Patents

High pressure metallic vapor discharge lamp

Info

Publication number
JPS5736768A
JPS5736768A JP11023880A JP11023880A JPS5736768A JP S5736768 A JPS5736768 A JP S5736768A JP 11023880 A JP11023880 A JP 11023880A JP 11023880 A JP11023880 A JP 11023880A JP S5736768 A JPS5736768 A JP S5736768A
Authority
JP
Japan
Prior art keywords
dysprosium
react
halogenide
halide lamp
halogen compound
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
JP11023880A
Other languages
Japanese (ja)
Inventor
Kenichi Kawasumi
Sadao Kaiwa
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 JP11023880A priority Critical patent/JPS5736768A/en
Publication of JPS5736768A publication Critical patent/JPS5736768A/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
    • H01J61/20—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To produce a metal halide lamp with high color rendering property and high luminous efficiency, by introducing into a luminous tube, a certain excess ratio of dysprosium more than the chemical equivalent weight necessary to react with a halogn compound, then by sealing the tube, and by making them to react with each other. CONSTITUTION:In a metal halide lamp which is to contain, at least, the sealed thallium halogenide and dysprosium halogenide the production of dysprosium halogenide is achieved by the reaction of dysposium with a halogen compound in the luminous tube. In this case, the dysprosium metal is introduced, sealed and then mixed with the halogen compound to make a mixture, which is subjected to reaction; the former dysprosium metal whose amount being excessive by 20-60% more than chemical equivalent weight necessary to react with the halogen compound. By means of this, the metal halide lamp having high color rendering property and high luminous efficiency with narrow dispersion of the light source color can be produced in a simple way.
JP11023880A 1980-08-13 1980-08-13 High pressure metallic vapor discharge lamp Pending JPS5736768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11023880A JPS5736768A (en) 1980-08-13 1980-08-13 High pressure metallic vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11023880A JPS5736768A (en) 1980-08-13 1980-08-13 High pressure metallic vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS5736768A true JPS5736768A (en) 1982-02-27

Family

ID=14530601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11023880A Pending JPS5736768A (en) 1980-08-13 1980-08-13 High pressure metallic vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS5736768A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250958A (en) * 1985-04-30 1986-11-08 Iwasaki Electric Co Ltd Metal halide lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61250958A (en) * 1985-04-30 1986-11-08 Iwasaki Electric Co Ltd Metal halide lamp

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