JPS54104677A - Lamp bulb - Google Patents
Lamp bulbInfo
- Publication number
- JPS54104677A JPS54104677A JP1098878A JP1098878A JPS54104677A JP S54104677 A JPS54104677 A JP S54104677A JP 1098878 A JP1098878 A JP 1098878A JP 1098878 A JP1098878 A JP 1098878A JP S54104677 A JPS54104677 A JP S54104677A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- external lead
- electrode rod
- external
- lead wire
- 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
Links
Abstract
PURPOSE: In a lamp bulb wherein an electrode rod constitutes electrode part, sealing part, and external lead rod part, to prevent the breakage of the external lead rod during the production and use of the bulb by coating the central portion (leaving end portions) of a lead wire with molten sealing glass and fitting a metal pipe to the coated portion.
CONSTITUTION: The central portion (leaving end portions) of a 0.5 mm ϕ tungsten electrode rod 1 is coated with molten sealing glass 2, and a Ni pipe 3 is fitted to the coated portion, with the end 4 pressed onto the external end 5 of the electrode rod 1 which serves also as an external lead rod. The external lead rod of the stem is connected with a lead wire 6. The electrode rod 1 is inserted into a luminescent bulbe main tube 7, and the joint of the main tube 7 and the sealing glass 2 is heated in a reducing gas or innert gas to seal the joint while coaxially rotating the both bodies. The sealing portion and the pipe 3 are fitted with a cap 9 through a heat- resistant cement 8. The cap 9 is electrically connected to the lead wire 6 by solder 10.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53010988A JPS5836802B2 (en) | 1978-02-01 | 1978-02-01 | tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53010988A JPS5836802B2 (en) | 1978-02-01 | 1978-02-01 | tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54104677A true JPS54104677A (en) | 1979-08-17 |
JPS5836802B2 JPS5836802B2 (en) | 1983-08-11 |
Family
ID=11765522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53010988A Expired JPS5836802B2 (en) | 1978-02-01 | 1978-02-01 | tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5836802B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61207201U (en) * | 1985-06-18 | 1986-12-27 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4929084U (en) * | 1972-06-14 | 1974-03-13 |
-
1978
- 1978-02-01 JP JP53010988A patent/JPS5836802B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4929084U (en) * | 1972-06-14 | 1974-03-13 |
Also Published As
Publication number | Publication date |
---|---|
JPS5836802B2 (en) | 1983-08-11 |
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