JPS6441160A - High pressure metal vapor discharge lamp - Google Patents
High pressure metal vapor discharge lampInfo
- Publication number
- JPS6441160A JPS6441160A JP19673587A JP19673587A JPS6441160A JP S6441160 A JPS6441160 A JP S6441160A JP 19673587 A JP19673587 A JP 19673587A JP 19673587 A JP19673587 A JP 19673587A JP S6441160 A JPS6441160 A JP S6441160A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- sodium
- electrode conductor
- light
- high pressure
- 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
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE:To prevent sodium electric discharge in a light emitting tube and also prevent sodium dissipation in the tube because of adhesives at the tube end by affixing an insulative substance to the outer surface of the tip of electrode conductor of a sodium lamp. CONSTITUTION:An electrode conductor 3 is fitted at the end of an alumina light-emitting tube 1 of a high voltage sodium lamp, with an insulating cap 6 interposed, and that surface of electrode conductor 3 which is not surrounded by the insulating cap 6, is fixed to the end of alumina light-emitting tube 1 by a seal 5. Accordingly the sodium amalgum 4 encapsulated in the light- emitting tube 1 is not electrically contacted with the electrode conductor, so that there is no risk of damaging the tube by electric discharge from the amalgum 4 at the time of lamp starting. There is either no risk of the seal 5 flowing into the tube 1, so that it will never react with the sodium in the tube 1 to cause dissipation thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19673587A JPS6441160A (en) | 1987-08-06 | 1987-08-06 | High pressure metal vapor discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19673587A JPS6441160A (en) | 1987-08-06 | 1987-08-06 | High pressure metal vapor discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441160A true JPS6441160A (en) | 1989-02-13 |
Family
ID=16362723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19673587A Pending JPS6441160A (en) | 1987-08-06 | 1987-08-06 | High pressure metal vapor discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441160A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007048832A (en) * | 2005-08-08 | 2007-02-22 | Mitsubishi Electric Corp | Optical semiconductor device |
-
1987
- 1987-08-06 JP JP19673587A patent/JPS6441160A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007048832A (en) * | 2005-08-08 | 2007-02-22 | Mitsubishi Electric Corp | Optical semiconductor device |
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