GB1370020A - Arc-discharge lamp - Google Patents
Arc-discharge lampInfo
- Publication number
- GB1370020A GB1370020A GB6069771A GB6069771A GB1370020A GB 1370020 A GB1370020 A GB 1370020A GB 6069771 A GB6069771 A GB 6069771A GB 6069771 A GB6069771 A GB 6069771A GB 1370020 A GB1370020 A GB 1370020A
- Authority
- GB
- United Kingdom
- Prior art keywords
- halide
- fluoride
- mole
- praseodymium
- neodymium
- 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
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
Abstract
1370020 Metal-vapour lamps WESTING- HOUSE ELECTRIC CORP 30 Dec 1971 [21 Jan 1971] 60697/71 Heading H1D A discharge lamp has a filling which includes mercury providing, in operation a pressure of from 3 to 15 atmospheres; at least one of cerium halide, praseodymium halide, and neodymium halide, other than the fluoride, in a total amount of from 1À4 x 10<SP>-6</SP> to 5À4 x 10<SP>-5</SP> gm. mole cm.<SP>-1</SP> of spacing between the electrodes ; cesium halide, excluding the fluoride, in an amount of 3À5 Î 10<SP>-7</SP> to 5À4 Î 10<SP>-5</SP> gm. mole cm.<SP>-1</SP>; the molar ratio of the praseodymium, neodymium, and cerium halide to the cesium halide falling in the range 4 : 1 to 1 : 2À5; and a starting gas-e.g. 20 torr of argon. The halide is preferably the iodide, and the filling may additionally include the halide, other than the fluoride, of sodium, dysprasium, samarium, halmium, scandium, gadolinium, and indium, in specified ratios and amounts. The arc tube is mounted in an outer envelope (Fig. 1, not shown), and includes a starting electrode and series resistor. The arc tube may be of quartz or, as shown, of sintered polycrystalline alumina, with alumina end caps 46 through which pass exhaust and fill tubulations 50 which also support the electrodes 48.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10842771A | 1971-01-21 | 1971-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1370020A true GB1370020A (en) | 1974-10-09 |
Family
ID=22322119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6069771A Expired GB1370020A (en) | 1971-01-21 | 1971-12-30 | Arc-discharge lamp |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5133360B1 (en) |
BE (1) | BE778219A (en) |
DE (1) | DE2201831A1 (en) |
ES (1) | ES398575A1 (en) |
FR (1) | FR2122551B1 (en) |
GB (1) | GB1370020A (en) |
IT (1) | IT946752B (en) |
MY (1) | MY7500097A (en) |
NL (1) | NL7200871A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239232A (en) * | 1990-04-24 | 1993-08-24 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Light balance compensated mercury vapor and halogen high-pressure discharge lamp |
WO2004075229A2 (en) * | 2003-02-19 | 2004-09-02 | Flowil International Lighting (Holding) B.V. | Metal halide discharge lamp |
EP2387065A3 (en) * | 2010-05-13 | 2011-12-21 | Flowil International Lighting (Holding) B.V. | A high pressure discharge lamp for collagen regeneration in the skin |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2519377A1 (en) * | 1975-04-30 | 1976-11-11 | Patra Patent Treuhand | MERCURY VAPOR HIGH PRESSURE DISCHARGE LAMP |
JPS54129275U (en) * | 1978-02-27 | 1979-09-08 | ||
JPS54167667U (en) * | 1978-05-15 | 1979-11-26 | ||
JPS5537252U (en) * | 1978-08-30 | 1980-03-10 | ||
NL8005456A (en) * | 1980-10-02 | 1982-05-03 | Philips Nv | HIGH PRESSURE MERCURY DISCHARGE LAMP. |
DE3427280C2 (en) * | 1984-07-24 | 1986-06-12 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Metal halide high pressure discharge lamp |
US4801846A (en) * | 1986-12-19 | 1989-01-31 | Gte Laboratories Incorporated | Rare earth halide light source with enhanced red emission |
HU196861B (en) * | 1987-01-23 | 1989-01-30 | Tungsram Reszvenytarsasag | Low colour-temperature high-pressure metal-halide lamp with good colour reproduction |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3262012A (en) * | 1963-12-31 | 1966-07-19 | Sylvania Electric Prod | Electric discharge device having a thermostatically operated switch connected to a main electrode |
US3514659A (en) * | 1967-07-03 | 1970-05-26 | Sylvania Electric Prod | High pressure vapor discharge lamp with cesium iodide |
-
1971
- 1971-12-30 GB GB6069771A patent/GB1370020A/en not_active Expired
-
1972
- 1972-01-04 ES ES398575A patent/ES398575A1/en not_active Expired
- 1972-01-11 JP JP499372A patent/JPS5133360B1/ja active Pending
- 1972-01-15 DE DE19722201831 patent/DE2201831A1/en active Pending
- 1972-01-19 BE BE778219A patent/BE778219A/en unknown
- 1972-01-20 FR FR7201893A patent/FR2122551B1/fr not_active Expired
- 1972-01-20 IT IT1960272A patent/IT946752B/en active
- 1972-01-21 NL NL7200871A patent/NL7200871A/xx unknown
-
1975
- 1975-12-30 MY MY7500097A patent/MY7500097A/en unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239232A (en) * | 1990-04-24 | 1993-08-24 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Light balance compensated mercury vapor and halogen high-pressure discharge lamp |
WO2004075229A2 (en) * | 2003-02-19 | 2004-09-02 | Flowil International Lighting (Holding) B.V. | Metal halide discharge lamp |
WO2004075229A3 (en) * | 2003-02-19 | 2004-11-25 | Flowil Int Lighting | Metal halide discharge lamp |
GB2417364A (en) * | 2003-02-19 | 2006-02-22 | Flowil Internat Lighting | Metal halide discharge lamp |
GB2417364B (en) * | 2003-02-19 | 2006-11-29 | Flowil Internat Lighting | Metal halide discharge lamp |
EP2387065A3 (en) * | 2010-05-13 | 2011-12-21 | Flowil International Lighting (Holding) B.V. | A high pressure discharge lamp for collagen regeneration in the skin |
Also Published As
Publication number | Publication date |
---|---|
DE2201831A1 (en) | 1972-08-03 |
MY7500097A (en) | 1975-12-31 |
ES398575A1 (en) | 1974-10-01 |
BE778219A (en) | 1972-07-19 |
IT946752B (en) | 1973-05-21 |
NL7200871A (en) | 1972-07-25 |
FR2122551B1 (en) | 1977-01-14 |
JPS5133360B1 (en) | 1976-09-18 |
FR2122551A1 (en) | 1972-09-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |