JPS5744955A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS5744955A
JPS5744955A JP11993480A JP11993480A JPS5744955A JP S5744955 A JPS5744955 A JP S5744955A JP 11993480 A JP11993480 A JP 11993480A JP 11993480 A JP11993480 A JP 11993480A JP S5744955 A JPS5744955 A JP S5744955A
Authority
JP
Japan
Prior art keywords
lamp
reduced
shield
fluorescent lamp
lamp current
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.)
Granted
Application number
JP11993480A
Other languages
Japanese (ja)
Other versions
JPS6330738B2 (en
Inventor
Seigo Wada
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 JP11993480A priority Critical patent/JPS5744955A/en
Publication of JPS5744955A publication Critical patent/JPS5744955A/en
Publication of JPS6330738B2 publication Critical patent/JPS6330738B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To suppress the increase of lamp current thus to prevent the increase of the ballast loss and to improve the total efficiency, by arranging the discharge shield across the filament coated with the electron emission subsistance to separate the discharge space at the end section of tube into two. CONSTITUTION:A counter U-shaped discharge shield 9 is provided across a filament 5 in the proximity of an electrode, where the base section of said shield 9 is fixed to a stem 4. Consequently the lamp current can be reduced without lowering the entire light flux emitted from the lamp, thereby a fluorescent lamp having high total efficiency can be obtained where the lamp current is reduced and the ballast loss is reduced without sacrifice of the advantage of high lamp efficiency of such fluorescent lamp as encapsulated with heavy rare gas such as krypton.
JP11993480A 1980-08-29 1980-08-29 Fluorescent lamp Granted JPS5744955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11993480A JPS5744955A (en) 1980-08-29 1980-08-29 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11993480A JPS5744955A (en) 1980-08-29 1980-08-29 Fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS5744955A true JPS5744955A (en) 1982-03-13
JPS6330738B2 JPS6330738B2 (en) 1988-06-20

Family

ID=14773777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11993480A Granted JPS5744955A (en) 1980-08-29 1980-08-29 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5744955A (en)

Also Published As

Publication number Publication date
JPS6330738B2 (en) 1988-06-20

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