JPS5699961A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS5699961A
JPS5699961A JP140380A JP140380A JPS5699961A JP S5699961 A JPS5699961 A JP S5699961A JP 140380 A JP140380 A JP 140380A JP 140380 A JP140380 A JP 140380A JP S5699961 A JPS5699961 A JP S5699961A
Authority
JP
Japan
Prior art keywords
bulb
narrow
bulb part
potential gradient
glass bulb
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
JP140380A
Other languages
Japanese (ja)
Inventor
Hiroshi Imamura
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 JP140380A priority Critical patent/JPS5699961A/en
Publication of JPS5699961A publication Critical patent/JPS5699961A/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
    • H01J61/30—Vessels; Containers
    • H01J61/33—Special shape of cross-section, e.g. for producing cool spot

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To improve luminescence efficiency by arranging the narrow bulb part on the surface except the end of a glass bulb and accelerating the recombination of mercury ions and electrons during lighting-up of the lamp and increasing the potential gradient of positive column. CONSTITUTION:In the intermediate part of a glass bulb 1 except the end part of the bulb 1 in which phosphor 2 is coated on the inner wall, the narrow bulb part (1a) is formed. As for the narrow bulb part (1a), a variety of shapes can be formed by properly selecting the diameter, the length, and the quantity of the bulbs. In the glass bulb part 1 where the narrow bulb part (1a) exists, the sectional area reduces, and the density of the thermoelectrons which are emitted from the electrode increases, and the temperature of electrons vises. As a result of this, the potential gradient of positive column increases, and high luminescence efficiency can be obtained.
JP140380A 1980-01-11 1980-01-11 Fluorescent lamp Pending JPS5699961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP140380A JPS5699961A (en) 1980-01-11 1980-01-11 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP140380A JPS5699961A (en) 1980-01-11 1980-01-11 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5699961A true JPS5699961A (en) 1981-08-11

Family

ID=11500518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP140380A Pending JPS5699961A (en) 1980-01-11 1980-01-11 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5699961A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603847A (en) * 1983-06-21 1985-01-10 Japan Storage Battery Co Ltd Low-pressure mercury lamp
JPS61180447U (en) * 1985-04-30 1986-11-11
JPS61196454U (en) * 1985-05-30 1986-12-08
JPS63133444A (en) * 1986-11-25 1988-06-06 Semiconductor Energy Lab Co Ltd Light source for photoprocessing equipment and its usage
EP0577275A1 (en) * 1992-06-27 1994-01-05 Seung Jae Choi Fluorescent lamp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603847A (en) * 1983-06-21 1985-01-10 Japan Storage Battery Co Ltd Low-pressure mercury lamp
JPH0463507B2 (en) * 1983-06-21 1992-10-12 Japan Storage Battery Co Ltd
JPS61180447U (en) * 1985-04-30 1986-11-11
JPS61196454U (en) * 1985-05-30 1986-12-08
JPS63133444A (en) * 1986-11-25 1988-06-06 Semiconductor Energy Lab Co Ltd Light source for photoprocessing equipment and its usage
EP0577275A1 (en) * 1992-06-27 1994-01-05 Seung Jae Choi Fluorescent lamp

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