BE438506A - - Google Patents
Info
- Publication number
- BE438506A BE438506A BE438506DA BE438506A BE 438506 A BE438506 A BE 438506A BE 438506D A BE438506D A BE 438506DA BE 438506 A BE438506 A BE 438506A
- 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
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts 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
- H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL538855X | 1939-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE438506A true BE438506A (en:Method) |
Family
ID=19787240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE438506D BE438506A (en:Method) | 1939-04-01 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2267821A (en:Method) |
| BE (1) | BE438506A (en:Method) |
| DE (1) | DE730066C (en:Method) |
| FR (1) | FR865414A (en:Method) |
| GB (1) | GB538855A (en:Method) |
| NL (1) | NL52397C (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942062A (en) * | 1974-10-15 | 1976-03-02 | Rca Corporation | Metal vapor laser discharge device |
| HU191673B (en) * | 1984-06-12 | 1987-03-30 | Tungsram Reszvenytarsasag | High-pressure sodium lamp with improved colour response |
| US4591721A (en) * | 1984-10-10 | 1986-05-27 | Andors Analyzers Incorporated | Oxygen analysis employing absorption spectroscopy |
| US4798997A (en) * | 1985-12-26 | 1989-01-17 | Canon Kabushiki Kaisha | Lighting device |
| US4797598A (en) * | 1986-06-19 | 1989-01-10 | Canon Kabushiki Kaisha | Illumination apparatus |
-
0
- BE BE438506D patent/BE438506A/xx unknown
- NL NL52397D patent/NL52397C/xx active
-
1940
- 1940-03-29 GB GB5731/40A patent/GB538855A/en not_active Expired
- 1940-03-30 FR FR865414D patent/FR865414A/fr not_active Expired
- 1940-04-02 DE DEP80574D patent/DE730066C/de not_active Expired
- 1940-05-06 US US333653A patent/US2267821A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE730066C (de) | 1943-01-06 |
| GB538855A (en) | 1941-08-19 |
| NL52397C (en:Method) | |
| US2267821A (en) | 1941-12-30 |
| FR865414A (fr) | 1941-05-23 |