BE428489A - - Google Patents
Info
- Publication number
- BE428489A BE428489A BE428489DA BE428489A BE 428489 A BE428489 A BE 428489A BE 428489D A BE428489D A BE 428489DA BE 428489 A BE428489 A BE 428489A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/58—Arrangements for focusing or reflecting ray or beam
- H01J29/62—Electrostatic lenses
- H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
- H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL7413D DE1019343B (de) | 1937-06-08 | 1937-06-08 | Kathodenstrahlroehre fuer Fernsehzwecke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE428489A true BE428489A (en:Method) |
Family
ID=7257248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE428489D BE428489A (en:Method) | 1937-06-08 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE428489A (en:Method) |
| DE (1) | DE1019343B (en:Method) |
| FR (1) | FR49602E (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743972B1 (en:Method) * | 1971-02-05 | 1982-09-18 | ||
| JPS5480666A (en) * | 1977-12-09 | 1979-06-27 | Mitsubishi Electric Corp | Electron gun |
-
0
- BE BE428489D patent/BE428489A/xx unknown
-
1937
- 1937-06-08 DE DEL7413D patent/DE1019343B/de active Pending
-
1938
- 1938-06-07 FR FR49602D patent/FR49602E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR49602E (fr) | 1939-05-16 |
| DE1019343B (de) | 1957-11-14 |