JPS5463570A - Method of manufacturing fluorescent lamp - Google Patents

Method of manufacturing fluorescent lamp

Info

Publication number
JPS5463570A
JPS5463570A JP12927277A JP12927277A JPS5463570A JP S5463570 A JPS5463570 A JP S5463570A JP 12927277 A JP12927277 A JP 12927277A JP 12927277 A JP12927277 A JP 12927277A JP S5463570 A JPS5463570 A JP S5463570A
Authority
JP
Japan
Prior art keywords
filament
gas
seconds
energized
evacuating
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
JP12927277A
Other languages
Japanese (ja)
Other versions
JPS618532B2 (en
Inventor
Makoto Hojo
Koichi Tsuda
Shinichi Tsunekawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12927277A priority Critical patent/JPS5463570A/en
Publication of JPS5463570A publication Critical patent/JPS5463570A/en
Publication of JPS618532B2 publication Critical patent/JPS618532B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE: To improve the lamp characteristics of a fluorescent lamp by increasing the conducting current of an electrode filament at inert gas evacuating side larger than that of the filament at inert gas feeding side to exactly and sufficiently execute the arc discharge of the filament at the evacuating side and also to exactly decompose and activate the cathode materials at both ends.
CONSTITUTION: A bulb 1 is evacuated to vacuum by an evacuating unit 12, and is fed with Ar gas by a gas supplying unit 11. The electrode filament 6 at the Ar gas feeding side is energized by the current of 800mA for two seconds after two seconds upon starting of the gas feeding, of 700mA for two seconds, and of 600mA for two seconds so as to decompose and activate the cathode material 8. The electrode filament 7 at the gas evacuating side is also energized similarly in cycle to that of the filament 6. However, the filament 7 is energized with the same current first and second times as that of the gas feeding side, and is energized then with increased current third time by 1.1 to 1.5 times, namely, 660mA to 900mA as compared with that at the gas feeding side.
COPYRIGHT: (C)1979,JPO&Japio
JP12927277A 1977-10-28 1977-10-28 Method of manufacturing fluorescent lamp Granted JPS5463570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12927277A JPS5463570A (en) 1977-10-28 1977-10-28 Method of manufacturing fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12927277A JPS5463570A (en) 1977-10-28 1977-10-28 Method of manufacturing fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS5463570A true JPS5463570A (en) 1979-05-22
JPS618532B2 JPS618532B2 (en) 1986-03-14

Family

ID=15005474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12927277A Granted JPS5463570A (en) 1977-10-28 1977-10-28 Method of manufacturing fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5463570A (en)

Also Published As

Publication number Publication date
JPS618532B2 (en) 1986-03-14

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