JPS5671238A - Manufacture of emitter - Google Patents

Manufacture of emitter

Info

Publication number
JPS5671238A
JPS5671238A JP14856079A JP14856079A JPS5671238A JP S5671238 A JPS5671238 A JP S5671238A JP 14856079 A JP14856079 A JP 14856079A JP 14856079 A JP14856079 A JP 14856079A JP S5671238 A JPS5671238 A JP S5671238A
Authority
JP
Japan
Prior art keywords
emitter
missing
halide
flux
service life
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
JP14856079A
Other languages
Japanese (ja)
Inventor
Hiroshi Sugiyama
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP14856079A priority Critical patent/JPS5671238A/en
Publication of JPS5671238A publication Critical patent/JPS5671238A/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
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Luminescent Compositions (AREA)

Abstract

PURPOSE:To prevent the missing of emitter particle and to lengthen the service life of fluorescent lamp, by adding specific amount of Ba, Sr, Ca halide as a flux into emitter material and performing the activation processing. CONSTITUTION:Carbonate is generally employed as an emitter material while 0.2-2.0wt% of more than one or two kinds of Ba, Sr, Ca halide ard used as flux, then activation processing is performed to combine the emitter particles. Consequently the missing of emitter particle can be prevented and the service life of fluorescent lamp is lengthened.
JP14856079A 1979-11-15 1979-11-15 Manufacture of emitter Pending JPS5671238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14856079A JPS5671238A (en) 1979-11-15 1979-11-15 Manufacture of emitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14856079A JPS5671238A (en) 1979-11-15 1979-11-15 Manufacture of emitter

Publications (1)

Publication Number Publication Date
JPS5671238A true JPS5671238A (en) 1981-06-13

Family

ID=15455476

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14856079A Pending JPS5671238A (en) 1979-11-15 1979-11-15 Manufacture of emitter

Country Status (1)

Country Link
JP (1) JPS5671238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834904A2 (en) * 1996-10-07 1998-04-08 Ushiodenki Kabushiki Kaisha High pressure mercury ultraviolet lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834904A2 (en) * 1996-10-07 1998-04-08 Ushiodenki Kabushiki Kaisha High pressure mercury ultraviolet lamp
EP0834904A3 (en) * 1996-10-07 1998-06-03 Ushiodenki Kabushiki Kaisha High pressure mercury ultraviolet lamp

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