JPS54146481A - High-pressure sodium lamp - Google Patents
High-pressure sodium lampInfo
- Publication number
- JPS54146481A JPS54146481A JP5531478A JP5531478A JPS54146481A JP S54146481 A JPS54146481 A JP S54146481A JP 5531478 A JP5531478 A JP 5531478A JP 5531478 A JP5531478 A JP 5531478A JP S54146481 A JPS54146481 A JP S54146481A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- krypton
- xenon
- sealed
- pressure sodium
- 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
- Discharge Lamp (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
PURPOSE: To enable the starting of a high-pressure sodium lamp at a low voltage, by filling the lamp with a start assisting rare gas which is a mixed gas consisting of 100 parts of xenon and 5 to 30 parts of krypton.
CONSTITUTION: End plugs 2, 3 made of alumina ceramic are sealed up with a ceramic cement in both the ends of a light-permeable luminous tube 1 made of polycrystalline alumina ceramic or single-crystal alumina. Niobium tubes 4, 5 are sealed up as electrical current conductors in the end plugs 2, 3. Tungsten coil electrodes 6, 7 filled with an electron emitting substance are held by the niobium tubes. Sodium which is a light emitting substance, mercury which acts as a buffer gas, and the start assisting rare gas which is the mixed gas consisting of 100 parts of xenon and 5 to 30 parts of krypton are filled in the luminous tube 1.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5531478A JPS54146481A (en) | 1978-05-09 | 1978-05-09 | High-pressure sodium lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5531478A JPS54146481A (en) | 1978-05-09 | 1978-05-09 | High-pressure sodium lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54146481A true JPS54146481A (en) | 1979-11-15 |
JPS6254231B2 JPS6254231B2 (en) | 1987-11-13 |
Family
ID=12995089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5531478A Granted JPS54146481A (en) | 1978-05-09 | 1978-05-09 | High-pressure sodium lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146481A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5535494A (en) * | 1978-09-05 | 1980-03-12 | Philips Nv | Discharge lamp |
JPS5665456A (en) * | 1979-10-31 | 1981-06-03 | Mitsubishi Electric Corp | Metal vapor discharge lamp |
JPS5838449A (en) * | 1981-08-31 | 1983-03-05 | Matsushita Electronics Corp | High pressure sodium lamp |
JPS5838450A (en) * | 1981-08-31 | 1983-03-05 | Matsushita Electronics Corp | High pressure sodium lamp |
JPS595555A (en) * | 1982-06-30 | 1984-01-12 | Japan Storage Battery Co Ltd | High pressure sodium lamp comprising starter |
-
1978
- 1978-05-09 JP JP5531478A patent/JPS54146481A/en active Granted
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5535494A (en) * | 1978-09-05 | 1980-03-12 | Philips Nv | Discharge lamp |
JPS587231B2 (en) * | 1978-09-05 | 1983-02-08 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | discharge lamp |
JPS5665456A (en) * | 1979-10-31 | 1981-06-03 | Mitsubishi Electric Corp | Metal vapor discharge lamp |
JPS5838449A (en) * | 1981-08-31 | 1983-03-05 | Matsushita Electronics Corp | High pressure sodium lamp |
JPS5838450A (en) * | 1981-08-31 | 1983-03-05 | Matsushita Electronics Corp | High pressure sodium lamp |
JPH0465492B2 (en) * | 1981-08-31 | 1992-10-20 | Matsushita Electronics Corp | |
JPH0465491B2 (en) * | 1981-08-31 | 1992-10-20 | Matsushita Electronics Corp | |
JPS595555A (en) * | 1982-06-30 | 1984-01-12 | Japan Storage Battery Co Ltd | High pressure sodium lamp comprising starter |
JPH0415579B2 (en) * | 1982-06-30 | 1992-03-18 | Japan Storage Battery Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6254231B2 (en) | 1987-11-13 |
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