JPS5498070A - Method of fabricating fluorescent lamp - Google Patents
Method of fabricating fluorescent lampInfo
- 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
Links
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
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) |
-
1978
- 1978-01-18 JP JP380578A patent/JPS5498070A/en active Pending
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