JPS5468085A - Preparation of tube type incandescent lamp - Google Patents
Preparation of tube type incandescent lampInfo
- Publication number
- JPS5468085A JPS5468085A JP13423077A JP13423077A JPS5468085A JP S5468085 A JPS5468085 A JP S5468085A JP 13423077 A JP13423077 A JP 13423077A JP 13423077 A JP13423077 A JP 13423077A JP S5468085 A JPS5468085 A JP S5468085A
- Authority
- JP
- Japan
- Prior art keywords
- filament
- bulb
- sealed
- heating
- end portion
- 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: To prevent the turbulence of the distribution characteristic of light and the deformation of a filament, by sealing the filament after uniformly prolonging it.
CONSTITUTION: One end portion of a bulb 1 is blocked by a blockade body 8 while holding a filament 2 consisting of alternative luminous portions 3 and non-luminous portions 4 at right locations, the other end portion of the bulb 1 is crush sealed by heating it by means of an oxyhydrogen burner 7, etc. while preventing the oxidation of an external leading-in wire 6, etc. by feeding inactive gas into the bulb 1 from an exhaust tube 9, metallic foil 5 and the external leading-in wire 6 are sealed, the bulb 1 is inverted, the filament 2 is conduction heated, and the other end portion is crush sealed by heating it by means of the burner 7, etc. while being provided with tension by prolongation, thus completing the sealing of the filament 2. Consequently, the whole yield point of the filament 2 uniformly lowers by heating, thus preventing the local deformation of the filament 2 in the case when the other end porton is sealed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13423077A JPS6038823B2 (en) | 1977-11-09 | 1977-11-09 | Manufacturing method of tube-shaped incandescent light bulb |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13423077A JPS6038823B2 (en) | 1977-11-09 | 1977-11-09 | Manufacturing method of tube-shaped incandescent light bulb |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5468085A true JPS5468085A (en) | 1979-05-31 |
JPS6038823B2 JPS6038823B2 (en) | 1985-09-03 |
Family
ID=15123457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13423077A Expired JPS6038823B2 (en) | 1977-11-09 | 1977-11-09 | Manufacturing method of tube-shaped incandescent light bulb |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6038823B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01186548A (en) * | 1988-01-13 | 1989-07-26 | Ushio Inc | Manufacture of tubular incandescent lamp |
KR970071900A (en) * | 1996-04-10 | 1997-11-07 | 유미코 니시보리 | Double end type halogen lamp and manufacturing method thereof |
-
1977
- 1977-11-09 JP JP13423077A patent/JPS6038823B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01186548A (en) * | 1988-01-13 | 1989-07-26 | Ushio Inc | Manufacture of tubular incandescent lamp |
KR970071900A (en) * | 1996-04-10 | 1997-11-07 | 유미코 니시보리 | Double end type halogen lamp and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6038823B2 (en) | 1985-09-03 |
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