BE424909A - - Google Patents
Info
- Publication number
- BE424909A BE424909A BE424909DA BE424909A BE 424909 A BE424909 A BE 424909A BE 424909D A BE424909D A BE 424909DA BE 424909 A BE424909 A BE 424909A
- 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
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
- H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS829447X | 1936-12-05 | ||
| DEM136632D DE684934C (de) | 1936-12-05 | 1936-12-16 | Elektrische Metalldampfbogenlampe mit festen, zu hoher Elektronenemission aktivierten Elektroden und einem Vorratsbehaelter fuer das zu verdampfende Metall |
| GB4561/37A GB473583A (en) | 1936-12-05 | 1937-02-15 | Improvements in and relating to metal vapour discharge tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE424909A true BE424909A (en:Method) | 1937-12-31 |
Family
ID=9779466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE424909D BE424909A (en:Method) | 1936-12-05 | 1937-11-29 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE424909A (en:Method) |
| DE (1) | DE684934C (en:Method) |
| FR (1) | FR829447A (en:Method) |
| GB (1) | GB473583A (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1274228B (de) * | 1965-08-16 | 1968-08-01 | Patra Patent Treuhand | Elektrische Quecksilberniederdruck-Entladungslampe, insbesondere Leuchtstofflampe |
| NL6709573A (en:Method) * | 1967-07-10 | 1969-01-14 | ||
| NL166578C (nl) * | 1973-12-19 | 1981-08-17 | Philips Nv | Ontladingsbuis voorzien van twee inwendige elektroden. |
| WO2016135008A1 (en) * | 2015-02-26 | 2016-09-01 | Philips Lighting Holding B.V. | Lighting device with dispenser for a reactive substance |
-
1936
- 1936-12-16 DE DEM136632D patent/DE684934C/de not_active Expired
-
1937
- 1937-02-15 GB GB4561/37A patent/GB473583A/en not_active Expired
- 1937-11-18 FR FR829447D patent/FR829447A/fr not_active Expired
- 1937-11-29 BE BE424909D patent/BE424909A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR829447A (fr) | 1938-06-24 |
| GB473583A (en) | 1937-10-15 |
| DE684934C (de) | 1939-12-08 |