JPS55155457A - Discharge lamp - Google Patents

Discharge lamp

Info

Publication number
JPS55155457A
JPS55155457A JP6436779A JP6436779A JPS55155457A JP S55155457 A JPS55155457 A JP S55155457A JP 6436779 A JP6436779 A JP 6436779A JP 6436779 A JP6436779 A JP 6436779A JP S55155457 A JPS55155457 A JP S55155457A
Authority
JP
Japan
Prior art keywords
oxide
yttrium oxide
lanthanum oxide
sintered body
discharge lamp
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
JP6436779A
Other languages
Japanese (ja)
Inventor
Keiji Watabe
Masato Saito
Masahiro Dobashi
Yoriaki Ibuki
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 JP6436779A priority Critical patent/JPS55155457A/en
Publication of JPS55155457A publication Critical patent/JPS55155457A/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes

Abstract

PURPOSE:To reduce darkening of valve wall and prolong life by using electron radiating substance which is obtained by mixing yttrium oxide and lanthanum oxide with heatproof metal. CONSTITUTION:An electrode is formed by arranging a sintered body 2 on an electrode core wire 1. The sintered body 2 contains heatproof metal and yttrium oxide and lanthanum oxide in 0.2-60wt% for the heatproof metal, and lanthanum oxide is contained in 0.5-50mol% for yttrium oxide. When such electron radiating substance is used, darkening on valve wall is reduced, and long life can be obtained.
JP6436779A 1979-05-24 1979-05-24 Discharge lamp Pending JPS55155457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6436779A JPS55155457A (en) 1979-05-24 1979-05-24 Discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6436779A JPS55155457A (en) 1979-05-24 1979-05-24 Discharge lamp

Publications (1)

Publication Number Publication Date
JPS55155457A true JPS55155457A (en) 1980-12-03

Family

ID=13256222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6436779A Pending JPS55155457A (en) 1979-05-24 1979-05-24 Discharge lamp

Country Status (1)

Country Link
JP (1) JPS55155457A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818863A (en) * 1981-07-24 1983-02-03 Iwasaki Electric Co Ltd High pressure sodium lamp
JPS5819458U (en) * 1981-07-31 1983-02-05 岩崎電気株式会社 high pressure sodium lamp
JPS5826444A (en) * 1981-08-10 1983-02-16 Iwasaki Electric Co Ltd High-pressure sodium lamp
US4525379A (en) * 1983-01-08 1985-06-25 U.S. Philips Corporation Method of manufacturing an electrode for a high-pressure gas discharge lamp and electrode for such a lamp
EP0383108A1 (en) * 1989-02-15 1990-08-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH High-pressure discharge lamp for operation with an alternating current

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818863A (en) * 1981-07-24 1983-02-03 Iwasaki Electric Co Ltd High pressure sodium lamp
JPS5819458U (en) * 1981-07-31 1983-02-05 岩崎電気株式会社 high pressure sodium lamp
JPS5826444A (en) * 1981-08-10 1983-02-16 Iwasaki Electric Co Ltd High-pressure sodium lamp
US4525379A (en) * 1983-01-08 1985-06-25 U.S. Philips Corporation Method of manufacturing an electrode for a high-pressure gas discharge lamp and electrode for such a lamp
EP0383108A1 (en) * 1989-02-15 1990-08-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH High-pressure discharge lamp for operation with an alternating current
US5081396A (en) * 1989-02-15 1992-01-14 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen M.B.H. Ac high pressure discharge lamp, especially for high current level operation

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