GB518455A - Improvements in high-pressure metal-vapour electric discharge lamps - Google Patents
Improvements in high-pressure metal-vapour electric discharge lampsInfo
- Publication number
- GB518455A GB518455A GB28477/38A GB2847738A GB518455A GB 518455 A GB518455 A GB 518455A GB 28477/38 A GB28477/38 A GB 28477/38A GB 2847738 A GB2847738 A GB 2847738A GB 518455 A GB518455 A GB 518455A
- Authority
- GB
- United Kingdom
- Prior art keywords
- watts
- envelope
- pressure
- electrodes
- distance
- 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
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
- H01J61/822—High-pressure mercury lamps
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE212737X | 1938-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518455A true GB518455A (en) | 1940-02-27 |
Family
ID=5809614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28477/38A Expired GB518455A (en) | 1938-09-10 | 1938-09-30 | Improvements in high-pressure metal-vapour electric discharge lamps |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2272467A (enrdf_load_stackoverflow) |
| BE (1) | BE440887A (enrdf_load_stackoverflow) |
| CH (1) | CH212737A (enrdf_load_stackoverflow) |
| FR (1) | FR860095A (enrdf_load_stackoverflow) |
| GB (1) | GB518455A (enrdf_load_stackoverflow) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2469607A (en) * | 1943-09-20 | 1949-05-10 | Gen Electric | Electric lamp unit |
| US2545884A (en) * | 1946-01-18 | 1951-03-20 | Gen Electric | High-pressure mercury vapor electric discharge lamp |
| US2467687A (en) * | 1946-07-08 | 1949-04-19 | Gen Electric | High-pressure discharge lamp |
| US2673944A (en) * | 1948-12-23 | 1954-03-30 | Gen Electric | Electric discharge lamp |
| US2682007A (en) * | 1951-01-11 | 1954-06-22 | Hanovia Chemical & Mfg Co | Compact type electrical discharge device |
| US2667592A (en) * | 1951-01-11 | 1954-01-26 | Hanovia Chemical & Mfg Co | Electrode for compact type electrical discharge devices |
| US2707247A (en) * | 1951-06-05 | 1955-04-26 | Hanovia Chemical & Mfg Co | Vapor electric discharge lamp |
| US3662175A (en) * | 1969-12-22 | 1972-05-09 | Tuttle Inc | Apparatus for generating ultra violet light |
| US3714493A (en) * | 1970-04-06 | 1973-01-30 | Gen Electric | Compact metal halide arc lamp containing primarily mercury iodide |
| US3882346A (en) * | 1973-11-05 | 1975-05-06 | Gen Electric | Ceramic arc tube mounting structure |
| DE2826733C2 (de) * | 1977-07-05 | 1982-07-29 | General Electric Co., Schenectady, N.Y. | Hochdruck-Metalldampf-Entladungslampe |
| US4161672A (en) * | 1977-07-05 | 1979-07-17 | General Electric Company | High pressure metal vapor discharge lamps of improved efficacy |
| US4170746A (en) * | 1977-12-27 | 1979-10-09 | General Electric Company | High frequency operation of miniature metal vapor discharge lamps |
| US4199701A (en) * | 1978-08-10 | 1980-04-22 | General Electric Company | Fill gas for miniature high pressure metal vapor arc lamp |
| US5083059A (en) * | 1990-12-31 | 1992-01-21 | Welch Allyn, Inc. | Electrode for metal halide discharge lamp |
| US5253153A (en) * | 1992-09-16 | 1993-10-12 | General Electric Company | Vehicle headlamp comprising a metal-halide discharge lamp including an inner envelope and a surrounding shroud |
-
0
- BE BE440887D patent/BE440887A/xx unknown
-
1938
- 1938-09-30 GB GB28477/38A patent/GB518455A/en not_active Expired
-
1939
- 1939-08-17 CH CH212737D patent/CH212737A/de unknown
- 1939-09-07 US US293850A patent/US2272467A/en not_active Expired - Lifetime
- 1939-09-09 FR FR860095D patent/FR860095A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2272467A (en) | 1942-02-10 |
| CH212737A (de) | 1940-12-15 |
| BE440887A (enrdf_load_stackoverflow) | |
| FR860095A (fr) | 1941-01-06 |
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