GB1211175A - High-pressure sodium vapor lamp - Google Patents
High-pressure sodium vapor lampInfo
- Publication number
- GB1211175A GB1211175A GB7099/68A GB709968A GB1211175A GB 1211175 A GB1211175 A GB 1211175A GB 7099/68 A GB7099/68 A GB 7099/68A GB 709968 A GB709968 A GB 709968A GB 1211175 A GB1211175 A GB 1211175A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- amalgam
- envelope
- vapour pressure
- alumina
- 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
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title abstract 9
- 229910052708 sodium Inorganic materials 0.000 title abstract 9
- 239000011734 sodium Substances 0.000 title abstract 9
- 229910000497 Amalgam Inorganic materials 0.000 abstract 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 5
- 229910052758 niobium Inorganic materials 0.000 abstract 3
- 239000010955 niobium Substances 0.000 abstract 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 abstract 2
- 239000011261 inert gas Substances 0.000 abstract 2
- 229910001388 sodium aluminate Inorganic materials 0.000 abstract 2
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 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
- MJGFBOZCAJSGQW-UHFFFAOYSA-N mercury sodium Chemical compound [Na].[Hg] MJGFBOZCAJSGQW-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000843 powder Substances 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
- 229910052724 xenon Inorganic materials 0.000 abstract 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 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
- H01J61/825—High-pressure sodium lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
- H01J61/22—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,211,175. Metal-vapour lamps. GENERAL ELECTRIC CO. 13 Feb., 1968 [16 Feb., 1967], No. 7099/68. Heading H1D. Sodium cleanup in a high-pressure lamp having an alumina envelope with a filling containing a sodium-mercury amalgam and an inert gas, which sodium exerts a partial pressure of 10 to 1000 torr. in operation, is prevented by arranging that the vapour pressure of sodium is lower than the equilibrium vapour pressure of sodium over sodium aluminate tending to condense at the coolest alumina surface in said envelope so that said tendency is inhibited. The required conditions may be obtained by adjusting the quantity of amalgam and the atomic fraction of sodium therein, having regard to the temperature of the coolest alumina surface in operation. The quantity of amalgam may exceed that vaporized in operation so that the sodium vapour pressure is excess-limited. Under this condition with the coolest alumina surface at a temperature of 600 to 1000 C., the atom fraction of sodium in the excess amalgam is from 0À6 to 0À8. The partial vapour pressure of the mercury is less than 10 atmospheres. Alternatively the amalgam may be totally vaporized so that the sodium vapour pressure is amount-limited. In the lamp shown, niobium end caps 12, 12<SP>1</SP> sealed to the alumina envelope 11 support tungsten electrodes 14, 14<SP>1</SP>, a niobium dummy exhaust tube 16<SP>1</SP> and a niobium exhaust tube 16 which is pierced at 18 and may form a reservoir where excess amalgam collects. The envelope 11 is supported by a single side rod frame 21 in an outer vitreous envelope 2 which is evacuated and provided with getter channels 25 containing barium powder. The inert gas is xenon. An oxygen-absorbing metal such as yttrium may be provided in the lamp as described in Specification 1,211,176 to destabilize sodium aluminate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61653967A | 1967-02-16 | 1967-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1211175A true GB1211175A (en) | 1970-11-04 |
Family
ID=24469912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7099/68A Expired GB1211175A (en) | 1967-02-16 | 1968-02-13 | High-pressure sodium vapor lamp |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3453477A (en) |
| DE (1) | DE1639111B2 (en) |
| FR (1) | FR1555062A (en) |
| GB (1) | GB1211175A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135502A (en) * | 1983-02-18 | 1984-08-30 | Egyesuelt Izzolampa | High-pressure sodium lamp |
| AU570434B2 (en) * | 1983-03-10 | 1988-03-17 | Gte Products Corporation | Sodium lamp |
| AU578237B2 (en) * | 1983-03-10 | 1988-10-20 | Gte Products Corporation | Sodium lamp |
| AU578603B2 (en) * | 1983-03-10 | 1988-11-03 | Gte Products Corporation | Unsaturated vapor pressure type high pressure sodium lamp |
| AU578601B2 (en) * | 1983-03-10 | 1988-11-03 | Gte Products Corporation | Arc tube fabrication process |
| AU578602B2 (en) * | 1983-03-10 | 1988-11-03 | Gte Products Corporation | Unsaturated vapor high pressure sodium lamp getter mounting |
| US4855643A (en) * | 1983-03-10 | 1989-08-08 | Gte Products Corporation | Unsaturated vapor pressure type high pressure sodium lamp |
| US4859905A (en) * | 1983-03-10 | 1989-08-22 | Gte Products Corporation | Unsaturated vapor high pressure sodium lamp getter mounting |
| US5022882A (en) * | 1983-03-10 | 1991-06-11 | Gte Products Corporation | Arc tube dosing process for unsaturated high pressure sodium lamp |
| US5026311A (en) * | 1983-03-10 | 1991-06-25 | Gte Products Corporation | Arc tube fabrication process |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL154865B (en) * | 1967-03-31 | 1977-10-17 | Philips Nv | ELECTRIC GAS DISCHARGE LAMP WITH A COVER OF TIGHTLY INSERTED ALUMINUM OXIDE AND METHOD FOR MANUFACTURING SUCH GAS DISCHARGE LAMP. |
| US3521108A (en) * | 1968-07-17 | 1970-07-21 | Gen Electric | Metallic vapor arc-lamp having high intensity sun-like emission |
| DE2209805C2 (en) * | 1972-03-01 | 1983-09-29 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Metal vapor high pressure discharge lamp |
| US3882346A (en) * | 1973-11-05 | 1975-05-06 | Gen Electric | Ceramic arc tube mounting structure |
| US3996487A (en) * | 1975-05-14 | 1976-12-07 | Westinghouse Electric Corporation | Ceramic discharge lamp with reduced heat drain |
| US4075530A (en) * | 1976-04-21 | 1978-02-21 | Japan Storage Battery Company Limited | High pressure sodium vapor lamp of unsaturated vapor pressure type |
| US4035682A (en) * | 1976-08-26 | 1977-07-12 | General Electric Company | Universal burning alkali metal vapor lamp with amalgam storage in exhaust tubulation |
| CH631575A5 (en) * | 1978-04-28 | 1982-08-13 | Bbc Brown Boveri & Cie | METHOD FOR INCREASING THE LIFE OF A GAS DISCHARGE VESSEL. |
| FR2542135B1 (en) * | 1983-03-01 | 1986-08-22 | Tungsram Reszvenytarsasag | HIGH PRESSURE SODIUM STEAM LAMP |
| US4617492A (en) * | 1985-02-04 | 1986-10-14 | General Electric Company | High pressure sodium lamp having improved pressure stability |
| EP0282657A1 (en) * | 1987-03-16 | 1988-09-21 | Iwasaki Electric Co., Ltd. | High pressure sodium vapor lamp having unsaturated vapor pressure type characteristics |
| JP2928813B2 (en) * | 1988-02-10 | 1999-08-03 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Unsaturated high pressure sodium lamp |
| US5150017A (en) * | 1991-06-27 | 1992-09-22 | Gte Products Corporation | High pressure sodium discharge lamp |
| US5336968A (en) * | 1992-06-30 | 1994-08-09 | General Electric Company | DC operated sodium vapor lamp |
| US6157132A (en) * | 1998-08-19 | 2000-12-05 | General Electric Company | Discharge lamp emission material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248590A (en) * | 1963-03-01 | 1966-04-26 | Gen Electric | High pressure sodium vapor lamp |
| US3384798A (en) * | 1966-04-26 | 1968-05-21 | Gen Electric | High pressure saturation vapor sodium lamp containing mercury |
-
1967
- 1967-02-16 US US616539A patent/US3453477A/en not_active Expired - Lifetime
-
1968
- 1968-02-12 FR FR1555062D patent/FR1555062A/fr not_active Expired
- 1968-02-13 GB GB7099/68A patent/GB1211175A/en not_active Expired
- 1968-02-16 DE DE19681639111 patent/DE1639111B2/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135502A (en) * | 1983-02-18 | 1984-08-30 | Egyesuelt Izzolampa | High-pressure sodium lamp |
| AU570434B2 (en) * | 1983-03-10 | 1988-03-17 | Gte Products Corporation | Sodium lamp |
| AU578237B2 (en) * | 1983-03-10 | 1988-10-20 | Gte Products Corporation | Sodium lamp |
| AU578603B2 (en) * | 1983-03-10 | 1988-11-03 | Gte Products Corporation | Unsaturated vapor pressure type high pressure sodium lamp |
| AU578601B2 (en) * | 1983-03-10 | 1988-11-03 | Gte Products Corporation | Arc tube fabrication process |
| AU578602B2 (en) * | 1983-03-10 | 1988-11-03 | Gte Products Corporation | Unsaturated vapor high pressure sodium lamp getter mounting |
| US4855643A (en) * | 1983-03-10 | 1989-08-08 | Gte Products Corporation | Unsaturated vapor pressure type high pressure sodium lamp |
| US4859905A (en) * | 1983-03-10 | 1989-08-22 | Gte Products Corporation | Unsaturated vapor high pressure sodium lamp getter mounting |
| US5022882A (en) * | 1983-03-10 | 1991-06-11 | Gte Products Corporation | Arc tube dosing process for unsaturated high pressure sodium lamp |
| US5026311A (en) * | 1983-03-10 | 1991-06-25 | Gte Products Corporation | Arc tube fabrication process |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1555062A (en) | 1969-01-24 |
| DE1639111A1 (en) | 1971-03-11 |
| US3453477A (en) | 1969-07-01 |
| DE1639111B2 (en) | 1971-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1211175A (en) | High-pressure sodium vapor lamp | |
| GB1143452A (en) | Improvements in high pressure saturated vapor sodium lamp containing mercury | |
| US3979624A (en) | High-efficiency discharge lamp which incorporates a small molar excess of alkali metal halide as compared to scandium halide | |
| US3334261A (en) | High pressure discharge device having a fill including iodine mercury and at least one rare earth metal | |
| GB998464A (en) | Improvements in gaseous electric discharge lamps | |
| US3781586A (en) | Long lifetime mercury-metal halide discharge lamps | |
| US3558963A (en) | High-intensity vapor arc-lamp | |
| CA1125352A (en) | Fill gas for miniature high pressure metal vapor arc lamp | |
| GB1253948A (en) | Metal halide discharge lamp | |
| GB1071103A (en) | Electric discharge lamp | |
| US3279877A (en) | Method for processing high-pressure vapor-discharge arc tube | |
| GB1428494A (en) | Sodium vapour lamp having starting means | |
| GB1138913A (en) | Metal vapor discharge lamp | |
| GB1211176A (en) | High-pressure sodium vapor lamp | |
| GB1060350A (en) | Improvements in or relating to high pressure mercury vapour electric discharge lamps | |
| US5327042A (en) | Metal halide lamp | |
| GB1370020A (en) | Arc-discharge lamp | |
| GB986514A (en) | Improvements in the manufacture of electric incandescent lamps | |
| US3644773A (en) | A hydrogen-halogen filament lamp with a hydrogen getter flag | |
| ES399456A1 (en) | High pressure mercury vapour discharge lamp | |
| GB1248157A (en) | Metallic vapor arc-lamp | |
| US5022882A (en) | Arc tube dosing process for unsaturated high pressure sodium lamp | |
| GB1531280A (en) | Metal halide lamps | |
| GB1056817A (en) | Improvements in and relating to electric discharge lamps | |
| US3577029A (en) | High-pressure electric discharge device containing mercury, halogen, scandium and samarium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |