JPS54150871A - Super high pressure mercury discharge lamp - Google Patents
Super high pressure mercury discharge lampInfo
- Publication number
- JPS54150871A JPS54150871A JP5852578A JP5852578A JPS54150871A JP S54150871 A JPS54150871 A JP S54150871A JP 5852578 A JP5852578 A JP 5852578A JP 5852578 A JP5852578 A JP 5852578A JP S54150871 A JPS54150871 A JP S54150871A
- Authority
- JP
- Japan
- Prior art keywords
- luminous tube
- tungsten
- electrodes
- mercury
- wall
- 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
- Discharge Lamp (AREA)
Abstract
PURPOSE: To provide a super high pressure mercury discharge lamp, wherein mercury, an inert gas and bromine are sealed in a luminous tube of quartz, and electrodes of tungsten are provided thereby preventing blackening and loss of clarity of the luminous tube to prolong the life of the tube and obtaining stabilized arc.
CONSTITUTION: Within a luminous tube 1 of quartz are sealed argon, and mercury and bromine in the form of mercury bromide. Use are made of rods of pure tungsten to electrodes 6, 7 which are connected to molybdenum foils 8, 9 which in turn are connected to outer lead wires 10, 11 for being connected to a source of electric power. Thus when tungsten scattered from the electrodes during the discharge of the luminous tube 1 has adhered to an inner wall of the luminous tube 1, the tungsten will immediately combine with the bromine present in the luminous tube 1 to from tungsten bromide so that the inner wall will be cleaned up to prevent blackening of the inner wall. Further, ends of the electrodes 6, 7 cannot be roughened so that the position of arc spot will not be displaced to obtain stabilized arc.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5852578A JPS54150871A (en) | 1978-05-17 | 1978-05-17 | Super high pressure mercury discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5852578A JPS54150871A (en) | 1978-05-17 | 1978-05-17 | Super high pressure mercury discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54150871A true JPS54150871A (en) | 1979-11-27 |
Family
ID=13086834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5852578A Pending JPS54150871A (en) | 1978-05-17 | 1978-05-17 | Super high pressure mercury discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54150871A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1225614A1 (en) * | 1999-10-18 | 2002-07-24 | Matsushita Electric Industrial Co., Ltd. | High-pressure discharge lamp, lamp unit, method for producing high-pressure discharge lamp, and incandescent lamp |
-
1978
- 1978-05-17 JP JP5852578A patent/JPS54150871A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1225614A1 (en) * | 1999-10-18 | 2002-07-24 | Matsushita Electric Industrial Co., Ltd. | High-pressure discharge lamp, lamp unit, method for producing high-pressure discharge lamp, and incandescent lamp |
EP1225614A4 (en) * | 1999-10-18 | 2007-03-07 | Matsushita Electric Ind Co Ltd | High-pressure discharge lamp, lamp unit, method for producing high-pressure discharge lamp, and incandescent lamp |
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