JPS5498070A - Method of fabricating fluorescent lamp - Google Patents

Method of fabricating fluorescent lamp

Info

Publication number
JPS5498070A
JPS5498070A JP380578A JP380578A JPS5498070A JP S5498070 A JPS5498070 A JP S5498070A JP 380578 A JP380578 A JP 380578A JP 380578 A JP380578 A JP 380578A JP S5498070 A JPS5498070 A JP S5498070A
Authority
JP
Japan
Prior art keywords
bulb
gas
current
argon gas
argon
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
JP380578A
Other languages
Japanese (ja)
Inventor
Shinichi Tsunekawa
Kotaro Kawamoto
Makoto Hojo
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 JP380578A priority Critical patent/JPS5498070A/en
Publication of JPS5498070A publication Critical patent/JPS5498070A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To provide the subject method comprising sending an inert gas of more than the large atmospheric pressure into a bulb, and causing a current to flow to the electrodes in this atmosphere to decompose and activate a cathodic substance whereby the decomposed gas is not adsorbed to the fluorescent body.
CONSTITUTION: One exhaust pipe 8 is connected to a device 9 for supplying an inert gas such as argon or the like, and another exhaust 8 is connected to an exhaust device 10. Respective conductive wires 4 are connected to a power source devices 11, respectively. Then, an argon gas is introduced into the bulb 1 from the supplying device 9 to substitute argon gas for air within the bulb 1. Upon this occasion, the bulb is preheated and cleaned in high degree. Then, the interior of the bulb 1 is maintained in the argon gas atmosphere of more than the large atmospheric pressure, and a current is caused to flow to the electrode filament 5 thereby to carry out the decomposition and activation of the cathodic substance 6 such as barium carbonate applied on the electrode. In the midway of the activation, mercury is caused to fall dropwise in the bulb or a pulse voltage is applied at the ultimate period of the current flowing.
COPYRIGHT: (C)1979,JPO&Japio
JP380578A 1978-01-18 1978-01-18 Method of fabricating fluorescent lamp Pending JPS5498070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP380578A JPS5498070A (en) 1978-01-18 1978-01-18 Method of fabricating fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP380578A JPS5498070A (en) 1978-01-18 1978-01-18 Method of fabricating fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5498070A true JPS5498070A (en) 1979-08-02

Family

ID=11567399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP380578A Pending JPS5498070A (en) 1978-01-18 1978-01-18 Method of fabricating fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5498070A (en)

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