GB471900A - Electric metallic-vapour arc discharge lamps - Google Patents
Electric metallic-vapour arc discharge lampsInfo
- Publication number
- GB471900A GB471900A GB7330/36A GB733036A GB471900A GB 471900 A GB471900 A GB 471900A GB 7330/36 A GB7330/36 A GB 7330/36A GB 733036 A GB733036 A GB 733036A GB 471900 A GB471900 A GB 471900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metallic
- envelope
- grid
- fins
- pool
- 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
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR805949T | 1935-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB471900A true GB471900A (en) | 1937-09-13 |
Family
ID=9251600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7330/36A Expired GB471900A (en) | 1935-08-13 | 1936-03-11 | Electric metallic-vapour arc discharge lamps |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE416993A (me) |
FR (1) | FR805949A (me) |
GB (1) | GB471900A (me) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6995513B2 (en) | 2001-05-08 | 2006-02-07 | Koninklijke Philips Electronics N.V. | Coil antenna/protection for ceramic metal halide lamps |
EP1632984A2 (en) * | 2004-09-07 | 2006-03-08 | Osram-Sylvania Inc. | Protected metal halide lamp |
-
0
- BE BE416993D patent/BE416993A/xx unknown
-
1935
- 1935-08-13 FR FR805949D patent/FR805949A/fr not_active Expired
-
1936
- 1936-03-11 GB GB7330/36A patent/GB471900A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6995513B2 (en) | 2001-05-08 | 2006-02-07 | Koninklijke Philips Electronics N.V. | Coil antenna/protection for ceramic metal halide lamps |
EP1632984A2 (en) * | 2004-09-07 | 2006-03-08 | Osram-Sylvania Inc. | Protected metal halide lamp |
EP1632984A3 (en) * | 2004-09-07 | 2007-09-05 | Osram-Sylvania Inc. | Protected metal halide lamp |
Also Published As
Publication number | Publication date |
---|---|
BE416993A (me) | |
FR805949A (fr) | 1936-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB468643A (en) | Improvements in or relating to extra-high-pressure metal vapour electric discharge devices | |
GB510828A (en) | Improvements in electric discharge devices | |
GB471900A (en) | Electric metallic-vapour arc discharge lamps | |
GB449862A (en) | Improvements in and relating to electric arc lamps | |
US2177710A (en) | Fluorescent sign lamp | |
GB616808A (en) | Improvements in or relating to electric high-pressure metal-vapour discharge tubes | |
US2030437A (en) | Electric discharge device | |
GB405605A (en) | Improvements in luminous electric discharge tubes | |
SU89303A1 (ru) | Малогабаритна люминесцентна лампа | |
GB446734A (en) | Improvements in the construction of electrodes for electric discharge devices | |
GB538855A (en) | Improvements in or relating to high-pressure metal vapour electric discharge tubes | |
GB471330A (en) | Improvements in or relating to electric discharge devices | |
GB465137A (en) | Improvements in and relating to electric discharge lamps | |
GB486394A (en) | High pressure metallic vapour electric discharge lamp | |
GB482070A (en) | Electric discharge lamp | |
GB828604A (en) | Improvements in or relating to low pressure electric discharge lamps | |
GB527796A (en) | Improvements in high-pressure metal-vapour electric discharge devices | |
GB491738A (en) | Improvements relating to artificially cooled high pressure metal vapour electric discharge lamps | |
GB465870A (en) | Improvements in and relating to electric gaseous discharge devices | |
GB643023A (en) | Improvements in or relating to electric discharge tubes | |
GB528577A (en) | Improvements relating to high pressure metal vapour lamps | |
GB466647A (en) | Improvements in or relating to electric discharge lamps | |
GB470302A (en) | Improvements in or relating to electric discharge lamps containing luminescent materials | |
GB550375A (en) | Improvements in and relating to vapour lamps | |
GB828605A (en) | Improvements in or relating to low pressure electric discharge lamps |