[go: up one dir, main page]

JPS56168334A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS56168334A
JPS56168334A JP7298480A JP7298480A JPS56168334A JP S56168334 A JPS56168334 A JP S56168334A JP 7298480 A JP7298480 A JP 7298480A JP 7298480 A JP7298480 A JP 7298480A JP S56168334 A JPS56168334 A JP S56168334A
Authority
JP
Japan
Prior art keywords
stem
passage
electric discharge
exhaust
groove
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
JP7298480A
Other languages
Japanese (ja)
Inventor
Hiroshi Ito
Takao Takeda
Tadashi Yanagi
Hitoshi Yamazaki
Kenichi Hashimoto
Jun Imai
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7298480A priority Critical patent/JPS56168334A/en
Publication of JPS56168334A publication Critical patent/JPS56168334A/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
    • H01J61/10—Shields, screens, or guides for influencing the discharge
    • H01J61/103—Shields, screens or guides arranged to extend the discharge path

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To improve the exnaust efficiency of a bulb, by sealing a stem to an end of the bulb with a built-in control body for the passage of electric discharge and providing exhaust fine tubes, individually conducted to both ends of the passage for electric discharge formed by the control body for said passage, in said stem. CONSTITUTION:A stem 2 is sealed to the opening part of a cylindrical bulb with an opening at its one end. On a top face of the stem 2 a groove 3 crossing its central part is provided, and a pair of electrodes 4 are protrusively provided in a state at a face-to-face position by interposing the groove 3. To places in the vicinity of the electrodes 4, two exhaust fine tubes made of glass are welded, and their respective top ends are opened to the top face of the stem 2. Then the bottom end of a spirally twisted control body 6 made of glass for the pasage of electric discharge is fitted to the groove 3 in the stem 2 and secured by glass frit. Accordingly, the two exhaust fine tubes 5 being provided can double the sectional area of effective exhaust, further the passage for electric discharge being exhausted from the both ends can improve the exhaust efficiency.
JP7298480A 1980-05-30 1980-05-30 Fluorescent lamp Pending JPS56168334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7298480A JPS56168334A (en) 1980-05-30 1980-05-30 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7298480A JPS56168334A (en) 1980-05-30 1980-05-30 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS56168334A true JPS56168334A (en) 1981-12-24

Family

ID=13505156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7298480A Pending JPS56168334A (en) 1980-05-30 1980-05-30 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS56168334A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903447A (en) * 1971-10-22 1975-09-02 Westinghouse Electric Corp Single-ended electric discharge lamp having tubular envelope with partition means that provides a helical arc path
JPS5312180A (en) * 1976-07-20 1978-02-03 Matsushita Electronics Corp Fluorescent lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903447A (en) * 1971-10-22 1975-09-02 Westinghouse Electric Corp Single-ended electric discharge lamp having tubular envelope with partition means that provides a helical arc path
JPS5312180A (en) * 1976-07-20 1978-02-03 Matsushita Electronics Corp Fluorescent lamp

Similar Documents

Publication Publication Date Title
JPS6421859A (en) Electrodeless low voltage discharge lamp
JPS56168334A (en) Fluorescent lamp
CA2181289A1 (en) Fluorescent lamp with end of life arc quenching structure
US3296480A (en) Gas discharge lamps with sinuous discharge path between electrodes
GB527940A (en) Gas discharge tubular lamps
JPS61187295U (en)
KR880008374A (en) Low pressure mercury discharge lamp
JPS5761253A (en) Fluorescent lamp
JPS57113550A (en) Discharge lamp
EP0152264A3 (en) Fluorescent lamp device
JPS6349756U (en)
JPS5740850A (en) Low pressure discharge lamp
JPS5699957A (en) Fluorescent lamp
JPS5825068A (en) Discharge lamp
JPS58182259U (en) fluorescent lamp
JPS5624752A (en) Compact type fluorescent lamp and its manufacturing method
JPS5661759A (en) High-pressure sodium vapor lamp
JPS6098262U (en) metal vapor discharge lamp
JPS61193662U (en)
JPS56114277A (en) Discharge lamp
JPS6224934Y2 (en)
JPS58168067U (en) Alkali metal vapor discharge lamp
JPS61145469U (en)
JPS57132663A (en) Low pressure gas discharge lamp and low pressure gas discharge lamp device
JPS60188464U (en) metal vapor discharge lamp