JPS5780634A - Manufacturing method for annular fluorescent lamp - Google Patents

Manufacturing method for annular fluorescent lamp

Info

Publication number
JPS5780634A
JPS5780634A JP15744080A JP15744080A JPS5780634A JP S5780634 A JPS5780634 A JP S5780634A JP 15744080 A JP15744080 A JP 15744080A JP 15744080 A JP15744080 A JP 15744080A JP S5780634 A JPS5780634 A JP S5780634A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
annular fluorescent
bulb
sealed
mercury
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
JP15744080A
Other languages
Japanese (ja)
Inventor
Nichimaru Fujio
Hiroshi Kajita
Kazunori Fukunaga
Masaru Yamaguchi
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 Holdings Corp
Original Assignee
Matsushita Electronics Corp
Matsushita Electric Industrial 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 Matsushita Electronics Corp, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electronics Corp
Priority to JP15744080A priority Critical patent/JPS5780634A/en
Publication of JPS5780634A publication Critical patent/JPS5780634A/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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To safety manufacture an annular fluorescent lamp at a high speed by using a mercury contained metal capsule for controlling the quantity of sealed mercury. CONSTITUTION:A stem 9 with an exhaust pipe 8 is sealed on the end of the bulb 7 of an annular fluorescent lamp and a metal capsule 5 is hooked and housed in the exhaust pipe 8. A concave 10 and a collar 11 for holding the bulb are provided at the sealing section of the bulb 7 over all circumferences when the annular fluorescent lamp is molded. Part of this collar 11 is enclosed by the high frequency heating coil 12 of a high frequency induction heater. The metal capsule 5 is high-frequency-heated and opened, and mercury 4 is sealed in the bulb 7.
JP15744080A 1980-11-07 1980-11-07 Manufacturing method for annular fluorescent lamp Pending JPS5780634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15744080A JPS5780634A (en) 1980-11-07 1980-11-07 Manufacturing method for annular fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15744080A JPS5780634A (en) 1980-11-07 1980-11-07 Manufacturing method for annular fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5780634A true JPS5780634A (en) 1982-05-20

Family

ID=15649688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15744080A Pending JPS5780634A (en) 1980-11-07 1980-11-07 Manufacturing method for annular fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5780634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581494A1 (en) * 1992-07-21 1994-02-02 General Electric Company Electric discharge lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130184A (en) * 1974-09-06 1976-03-15 Hitachi Ltd KEIKORAN PUNOSEIZOHOHO
JPS54139280A (en) * 1978-04-20 1979-10-29 Matsushita Electronics Corp Nethod of fabricating annular fluorescent lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130184A (en) * 1974-09-06 1976-03-15 Hitachi Ltd KEIKORAN PUNOSEIZOHOHO
JPS54139280A (en) * 1978-04-20 1979-10-29 Matsushita Electronics Corp Nethod of fabricating annular fluorescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581494A1 (en) * 1992-07-21 1994-02-02 General Electric Company Electric discharge lamp

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