JPS57205937A - Manufacture of metal vapor electric-discharge lamp - Google Patents

Manufacture of metal vapor electric-discharge lamp

Info

Publication number
JPS57205937A
JPS57205937A JP8814581A JP8814581A JPS57205937A JP S57205937 A JPS57205937 A JP S57205937A JP 8814581 A JP8814581 A JP 8814581A JP 8814581 A JP8814581 A JP 8814581A JP S57205937 A JPS57205937 A JP S57205937A
Authority
JP
Japan
Prior art keywords
electrode
emitter
binder
discharge lamp
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
JP8814581A
Other languages
Japanese (ja)
Inventor
Kenji Narisei
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 JP8814581A priority Critical patent/JPS57205937A/en
Publication of JPS57205937A publication Critical patent/JPS57205937A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)

Abstract

PURPOSE:To improve the characteristic of a high-pressure metal-vapor electric- discharge lamp by making no carbon to remain in an electron discharging matter (an emitter), which is supported by an electrode for the lamp and is applied to the electrode before sintered, by using a substance containing oxygen elements as a binder for the emitter. CONSTITUTION:ThO2 powder used as an emitter is suspended in an aqueous soution of a binder containing oxygen elements, such as polyethylene oxide. Next, an electrode 1 is immersed in thus prepared suspension so as to make the spaces 3 of a coil 2 to be filled with ThO2. After that, the electrode 1 is heated in a stream of nitrogen gas. Even when sintering is thus performed in an inactive gas, the binder almost completely undergoes combustion. As a result, no carbon remains in the electrode 1, and a remarkably improved lamp characteristic can be realized.
JP8814581A 1981-06-10 1981-06-10 Manufacture of metal vapor electric-discharge lamp Pending JPS57205937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8814581A JPS57205937A (en) 1981-06-10 1981-06-10 Manufacture of metal vapor electric-discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8814581A JPS57205937A (en) 1981-06-10 1981-06-10 Manufacture of metal vapor electric-discharge lamp

Publications (1)

Publication Number Publication Date
JPS57205937A true JPS57205937A (en) 1982-12-17

Family

ID=13934761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8814581A Pending JPS57205937A (en) 1981-06-10 1981-06-10 Manufacture of metal vapor electric-discharge lamp

Country Status (1)

Country Link
JP (1) JPS57205937A (en)

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