JPS54107177A - Production of annular fluorescent lamp - Google Patents
Production of annular fluorescent lampInfo
- Publication number
- JPS54107177A JPS54107177A JP1354978A JP1354978A JPS54107177A JP S54107177 A JPS54107177 A JP S54107177A JP 1354978 A JP1354978 A JP 1354978A JP 1354978 A JP1354978 A JP 1354978A JP S54107177 A JPS54107177 A JP S54107177A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- evacuation
- dimensions
- tip end
- evacuation pipe
- 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
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
PURPOSE: To lower the rejection rate of lamps and to enhance lamp characteristics by fixing by fixing an evacuation pipe to a predetermined position so that the pipe formed has a constant length and forming the pipe in a predetermined shape while restricting the dimensions thereof.
CONSTITUTION: In an evacuation pipe forming step, the evacuation pipe 2 of a bulb 1 is sufficiently heated by burner 3. The tip end of the pipe 2 thus heated is nipped by an evacuation pipe nipper 5. Keeping this condition, the nipper 5 is traveled up to a point where the tip end locates in the position of the formed pipe 2, and fixed in situ. An evacuation pipe dimensions restrictor 6 is pressed against the tip end of the pipe 2, and the dimensions of the pipe 2 are adjusted. Keeping this condition, an evacuation pipe forming jig is moved rightward and leftward to form the pipe 2 into a predetermined shape.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1354978A JPS54107177A (en) | 1978-02-10 | 1978-02-10 | Production of annular fluorescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1354978A JPS54107177A (en) | 1978-02-10 | 1978-02-10 | Production of annular fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54107177A true JPS54107177A (en) | 1979-08-22 |
Family
ID=11836233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1354978A Pending JPS54107177A (en) | 1978-02-10 | 1978-02-10 | Production of annular fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107177A (en) |
-
1978
- 1978-02-10 JP JP1354978A patent/JPS54107177A/en active Pending
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