JPS5659449A - Fluorescent discharge lamp - Google Patents

Fluorescent discharge lamp

Info

Publication number
JPS5659449A
JPS5659449A JP13493979A JP13493979A JPS5659449A JP S5659449 A JPS5659449 A JP S5659449A JP 13493979 A JP13493979 A JP 13493979A JP 13493979 A JP13493979 A JP 13493979A JP S5659449 A JPS5659449 A JP S5659449A
Authority
JP
Japan
Prior art keywords
discharge lamp
fluorescent discharge
winding
filament coil
flicker
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
JP13493979A
Other languages
Japanese (ja)
Inventor
Yutaka Oyamada
Yasunori Okada
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
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 filed Critical Matsushita Electronics Corp
Priority to JP13493979A priority Critical patent/JPS5659449A/en
Publication of JPS5659449A publication Critical patent/JPS5659449A/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
    • H01J61/067—Main electrodes for low-pressure discharge lamps

Landscapes

  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To prevent the flicker of light at the tube end part of a fluorescent discharge lamp, by arranging the pitch of a winding at the final part of a filament coil in the fluorescent discharge lamp to specific dimensions. CONSTITUTION:In a fluorescent discharge lamp having a tube 26-35mm. in its outside diameter and an envelope body located sideward of its filament coil, the pitch of a winding at the final winding part in the filament coil is formed to not less than 1,000mum. In this way, the flicker of light in an electode part at the tube end can be completely eliminated.
JP13493979A 1979-10-18 1979-10-18 Fluorescent discharge lamp Pending JPS5659449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13493979A JPS5659449A (en) 1979-10-18 1979-10-18 Fluorescent discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13493979A JPS5659449A (en) 1979-10-18 1979-10-18 Fluorescent discharge lamp

Publications (1)

Publication Number Publication Date
JPS5659449A true JPS5659449A (en) 1981-05-22

Family

ID=15140080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13493979A Pending JPS5659449A (en) 1979-10-18 1979-10-18 Fluorescent discharge lamp

Country Status (1)

Country Link
JP (1) JPS5659449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008198598A (en) * 2007-01-15 2008-08-28 Matsushita Electric Ind Co Ltd Fluorescent lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49132876A (en) * 1973-04-06 1974-12-20
JPS5153661U (en) * 1974-10-23 1976-04-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49132876A (en) * 1973-04-06 1974-12-20
JPS5153661U (en) * 1974-10-23 1976-04-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008198598A (en) * 2007-01-15 2008-08-28 Matsushita Electric Ind Co Ltd Fluorescent lamp

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