BE569498A - - Google Patents
Info
- Publication number
- BE569498A BE569498A BE569498DA BE569498A BE 569498 A BE569498 A BE 569498A BE 569498D A BE569498D A BE 569498DA BE 569498 A BE569498 A BE 569498A
- 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
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/025—Associated optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
- H01J61/325—U-shaped lamps
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL219119 | 1957-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE569498A true BE569498A (en:Method) |
Family
ID=19750932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE569498D BE569498A (en:Method) | 1957-07-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE569498A (en:Method) |
| CH (1) | CH366597A (en:Method) |
| DE (1) | DE1793020U (en:Method) |
| GB (1) | GB883618A (en:Method) |
-
0
- BE BE569498D patent/BE569498A/xx unknown
-
1958
- 1958-07-15 GB GB2263958A patent/GB883618A/en not_active Expired
- 1958-07-15 CH CH6179358A patent/CH366597A/de unknown
- 1958-07-15 DE DE1958N0008880 patent/DE1793020U/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB883618A (en) | 1961-12-06 |
| CH366597A (de) | 1963-01-15 |
| DE1793020U (de) | 1959-08-06 |