JPS5490873A - Method of sealing tubular quarz bulb - Google Patents
Method of sealing tubular quarz bulbInfo
- Publication number
- JPS5490873A JPS5490873A JP16083077A JP16083077A JPS5490873A JP S5490873 A JPS5490873 A JP S5490873A JP 16083077 A JP16083077 A JP 16083077A JP 16083077 A JP16083077 A JP 16083077A JP S5490873 A JPS5490873 A JP S5490873A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- bulb
- quarz
- branch tube
- branch
- 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
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
PURPOSE: To provide a method of sealing tubular quarz bulb, according to which the portion of a quarz tube where it is to be sealed is arranged in the form of a multi-layer tube, whereby a high mechanical strength at the sealing portion can be obtained with no use of a thick tube, and yield of the sealing operation can be improved.
CONSTITUTION: Outer and inner branch tubes 2, 3 are connected concentrically to the end portion of a light emitting bulb 1 made of quarz tube. Metal foil 5 made of metal difficult to fuse is inserted to the inside of inner branch tube 3. Electrode 4 is connected to one end of the metal foil 5, and outer lead wire 6 is connected to the other end of the metal foil 5. They are fixed in required positions in the branch tube 3 and bulb 1 by means of stopper 7. In sealing operation, outer branch tube 2 is at first fused and press-fitted, and then inside of the main tube of bulb 1 and inner branch tube 3 is evacuated. In this state, branch tube portion is heated to sealedly fused the branch tube 3 and metal foil 5 together under the atmospheric pressure. After fusing, inner surface of outer branch tube 2 and outer surface of inner branch tube 3 are fused together when the branch tubes are heated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16083077A JPS5490873A (en) | 1977-12-27 | 1977-12-27 | Method of sealing tubular quarz bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16083077A JPS5490873A (en) | 1977-12-27 | 1977-12-27 | Method of sealing tubular quarz bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5490873A true JPS5490873A (en) | 1979-07-18 |
| JPS618531B2 JPS618531B2 (en) | 1986-03-14 |
Family
ID=15723321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16083077A Granted JPS5490873A (en) | 1977-12-27 | 1977-12-27 | Method of sealing tubular quarz bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5490873A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602530A2 (en) * | 1992-12-14 | 1994-06-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Method for producing a vacuum-tight seal between a ceramic and a metallic part, especially for discharge vessels and lamps |
| JP2004221069A (en) * | 2002-12-27 | 2004-08-05 | Matsushita Electric Ind Co Ltd | Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp and lamp unit |
-
1977
- 1977-12-27 JP JP16083077A patent/JPS5490873A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602530A2 (en) * | 1992-12-14 | 1994-06-22 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Method for producing a vacuum-tight seal between a ceramic and a metallic part, especially for discharge vessels and lamps |
| JP2004221069A (en) * | 2002-12-27 | 2004-08-05 | Matsushita Electric Ind Co Ltd | Manufacturing method of high-pressure discharge lamp, high-pressure discharge lamp and lamp unit |
| JP4606019B2 (en) * | 2002-12-27 | 2011-01-05 | パナソニック株式会社 | High pressure discharge lamp manufacturing method, high pressure discharge lamp and lamp unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618531B2 (en) | 1986-03-14 |
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