BE541432A - - Google Patents
Info
- Publication number
- BE541432A BE541432A BE541432DA BE541432A BE 541432 A BE541432 A BE 541432A BE 541432D A BE541432D A BE 541432DA BE 541432 A BE541432 A BE 541432A
- Authority
- BE
- Belgium
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
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/073—Main electrodes for high-pressure discharge lamps
- H01J61/0735—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode
- H01J61/0737—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/073—Main electrodes for high-pressure discharge lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2855264X | 1954-09-22 | ||
| FR811016X | 1955-01-22 | ||
| FR2879427X | 1955-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE541432A true BE541432A (en:Method) |
Family
ID=32329518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE541432D BE541432A (en:Method) | 1954-09-22 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2855264A (en:Method) |
| BE (1) | BE541432A (en:Method) |
| DE (1) | DE1047313B (en:Method) |
| GB (1) | GB811016A (en:Method) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1132241B (de) * | 1960-02-11 | 1962-06-28 | Philips Nv | Elektrische Gasentladungslampe mit kalter Kathode |
| NL269416A (en:Method) * | 1960-09-21 | |||
| US5357167A (en) * | 1992-07-08 | 1994-10-18 | General Electric Company | High pressure discharge lamp with a thermally improved anode |
| US8087966B2 (en) * | 2004-04-21 | 2012-01-03 | Koninklijke Philips Electronics N.V. | Method for the thermal treatment of tungsten electrodes free from thorium oxide for high-pressure discharge lamps |
| US7633216B2 (en) * | 2005-11-28 | 2009-12-15 | General Electric Company | Barium-free electrode materials for electric lamps and methods of manufacture thereof |
| US8188663B2 (en) * | 2009-01-05 | 2012-05-29 | General Electric Company | High intensity discharge lamp |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2007926A (en) * | 1930-10-21 | 1935-07-09 | Sirian Lamp Co | Light emitting unit |
| US2006081A (en) * | 1934-03-02 | 1935-06-25 | Hanovia Chemical & Mfg Co | Electrode for vapor electric devices |
| US2057908A (en) * | 1935-01-08 | 1936-10-20 | Flexlume Corp | Luminous tube |
| CH197418A (de) * | 1936-08-03 | 1938-04-30 | Quarzlampen Gmbh | Elektrische Hochdruckmetalldampfentladungsröhre mit durch die Entladung aufgeheizter Oxydelektrode. |
| US2249672A (en) * | 1936-12-10 | 1941-07-15 | Gen Electric | Discharge device |
| GB486138A (en) * | 1937-01-19 | 1938-05-31 | Gen Electric Co Ltd | Improvements in electrodes for high-pressure metal vapour electric discharge devices |
| DE697428C (de) * | 1937-02-05 | 1940-10-14 | Patra Patent Treuhand | Elektrische, einen Betriebsdruck von mehr als 5 Atmosphaeren aufweisende Quecksilberdampfentladungslampe mit entladungsgeheizten Betriebsgluehelektroden und Anlasselektroden |
| NL54021C (en:Method) * | 1937-03-09 | |||
| US2187774A (en) * | 1937-10-08 | 1940-01-23 | Gen Electric | Electric discharge lamp adapted for use as source in optical projection apparatus |
| US2304412A (en) * | 1939-10-04 | 1942-12-08 | Gen Electric | Electric high pressure discharge lamp |
| DE880360C (de) * | 1943-07-14 | 1953-06-22 | Patra Patent Treuhand | Elektrische kugelfoermige Hochdruckentladungslampe |
| GB639536A (en) * | 1946-04-17 | 1950-06-28 | Gen Electric Co Ltd | Improvements in and relating to mercury vapour lamps |
| US2670451A (en) * | 1950-01-12 | 1954-02-23 | Westinghouse Electric Corp | Short arc high-pressure vapor discharge lamp |
| US2682007A (en) * | 1951-01-11 | 1954-06-22 | Hanovia Chemical & Mfg Co | Compact type electrical discharge device |
| US2687489A (en) * | 1952-06-26 | 1954-08-24 | Hanovia Chemical & Mfg Co | Electrode |
| FR1084263A (fr) * | 1953-06-04 | 1955-01-18 | Ets Claude Paz & Silva | Procédé pour la fabrication d'une électrode pour appareil à décharge électrique |
-
0
- BE BE541432D patent/BE541432A/xx unknown
-
1955
- 1955-09-20 US US535331A patent/US2855264A/en not_active Expired - Lifetime
-
1956
- 1956-01-09 DE DEE11797A patent/DE1047313B/de active Pending
- 1956-01-16 US US559424A patent/US2879427A/en not_active Expired - Lifetime
- 1956-01-20 GB GB2003/56A patent/GB811016A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1047313B (de) | 1958-12-24 |
| GB811016A (en) | 1959-03-25 |
| US2855264A (en) | 1958-10-07 |
| US2879427A (en) | 1959-03-24 |