GB691297A - Improvements in electric discharge lamps - Google Patents
Improvements in electric discharge lampsInfo
- Publication number
- GB691297A GB691297A GB203549A GB203549A GB691297A GB 691297 A GB691297 A GB 691297A GB 203549 A GB203549 A GB 203549A GB 203549 A GB203549 A GB 203549A GB 691297 A GB691297 A GB 691297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- electric discharge
- jan
- thermal conductivity
- discharge lamps
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts of the lamp
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
691,297. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., DAVIES, L. J., and BEESON, E. J. G. Jan 12, 1950 [Jan. 25, 1949], No. 2035/49. Class 39(i). The anode of an electric discharge lamp of the compact source type comprises an outer sheath 1 of a highly refractory metal of relatively low thermal conductivity such as tungsten or molyb denum, over a core 2 no exposed to the discharge which is of a metal of lower melting point but higher thermal conductivity, such as copper. The sheath may be extended to form a lead in conductor, and the core further extended to form a terminal 3 and carry radiating fins 4. According to the Provisional Specification, the copper core may also have a cavity for cooling fluid. Specification 555,344 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB203549A GB691297A (en) | 1949-01-25 | 1949-01-25 | Improvements in electric discharge lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB203549A GB691297A (en) | 1949-01-25 | 1949-01-25 | Improvements in electric discharge lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB691297A true GB691297A (en) | 1953-05-13 |
Family
ID=9732455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB203549A Expired GB691297A (en) | 1949-01-25 | 1949-01-25 | Improvements in electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB691297A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010130544A1 (en) * | 2009-05-15 | 2010-11-18 | Osram Gesellschaft mit beschränkter Haftung | High-pressure discharge lamp having cooling element |
-
1949
- 1949-01-25 GB GB203549A patent/GB691297A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010130544A1 (en) * | 2009-05-15 | 2010-11-18 | Osram Gesellschaft mit beschränkter Haftung | High-pressure discharge lamp having cooling element |
| CN102422383A (en) * | 2009-05-15 | 2012-04-18 | 欧司朗股份有限公司 | High-pressure discharge lamp having cooling element |
| US8519623B2 (en) | 2009-05-15 | 2013-08-27 | Osram Gmbh | High-pressure discharge lamp having a cooling element |
| CN102422383B (en) * | 2009-05-15 | 2015-05-27 | 欧司朗股份有限公司 | High-pressure discharge lamp having cooling element |
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