JPS5650045A - Electrode for discharge lamp - Google Patents

Electrode for discharge lamp

Info

Publication number
JPS5650045A
JPS5650045A JP12527679A JP12527679A JPS5650045A JP S5650045 A JPS5650045 A JP S5650045A JP 12527679 A JP12527679 A JP 12527679A JP 12527679 A JP12527679 A JP 12527679A JP S5650045 A JPS5650045 A JP S5650045A
Authority
JP
Japan
Prior art keywords
tungsten
bulb
mainly composed
discharge lamp
anode
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
JP12527679A
Other languages
Japanese (ja)
Other versions
JPS5821377B2 (en
Inventor
Hideo Koizumi
Yoichi Miyashita
Yoshiyuki Tokuda
Nobuhiro Koga
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 JP54125276A priority Critical patent/JPS5821377B2/en
Publication of JPS5650045A publication Critical patent/JPS5650045A/en
Publication of JPS5821377B2 publication Critical patent/JPS5821377B2/en
Expired 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
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0735—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To provide a long-life discharge lamp as a result of reduced electrode deformation and reduced blackening of the bulb, by forming its electrodes with a sintered material mainly composed of tungsten and containing oxygen in a proportion not higher than a predetermined level. CONSTITUTION:A xenon lamp is constituted in such a way that its arrangement is made by opposing a cathode 2 composed of thorium-tungsten to an anode 3 mainly composed of tungsten in a quartz bulb 1, and xenon gas is enclosed in the bulb 1. The oxygen content of the anode 3 mainly composed of a sintered material principally at a level not higher comprising than 10ppm.
JP54125276A 1979-10-01 1979-10-01 Electrode for discharge lamp Expired JPS5821377B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54125276A JPS5821377B2 (en) 1979-10-01 1979-10-01 Electrode for discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54125276A JPS5821377B2 (en) 1979-10-01 1979-10-01 Electrode for discharge lamp

Publications (2)

Publication Number Publication Date
JPS5650045A true JPS5650045A (en) 1981-05-07
JPS5821377B2 JPS5821377B2 (en) 1983-04-28

Family

ID=14906058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54125276A Expired JPS5821377B2 (en) 1979-10-01 1979-10-01 Electrode for discharge lamp

Country Status (1)

Country Link
JP (1) JPS5821377B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1684329A2 (en) * 2004-10-14 2006-07-26 Ushiodenki Kabushiki Kaisha Ultrahigh pressure mercury lamp
JP2010146990A (en) * 2008-12-22 2010-07-01 Ushio Inc Discharge lamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136453U (en) * 1983-02-28 1984-09-12 株式会社吉野工業所 Elastic cap for pump equipment
JPS62184839U (en) * 1986-05-17 1987-11-24

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450160A (en) * 1977-09-28 1979-04-19 Toshiba Corp Electrode of discharge lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450160A (en) * 1977-09-28 1979-04-19 Toshiba Corp Electrode of discharge lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1684329A2 (en) * 2004-10-14 2006-07-26 Ushiodenki Kabushiki Kaisha Ultrahigh pressure mercury lamp
EP1684329A3 (en) * 2004-10-14 2007-09-19 Ushiodenki Kabushiki Kaisha Ultrahigh pressure mercury lamp
JP2010146990A (en) * 2008-12-22 2010-07-01 Ushio Inc Discharge lamp

Also Published As

Publication number Publication date
JPS5821377B2 (en) 1983-04-28

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