BE424970A - - Google Patents
Info
- Publication number
- BE424970A BE424970A BE424970DA BE424970A BE 424970 A BE424970 A BE 424970A BE 424970D A BE424970D A BE 424970DA BE 424970 A BE424970 A BE 424970A
- 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 |
|---|---|---|---|
| DE830283X | 1936-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE424970A true BE424970A (en:Method) |
Family
ID=6749568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE424970D BE424970A (en:Method) | 1936-12-03 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE424970A (en:Method) |
| FR (1) | FR830283A (en:Method) |
| NL (1) | NL55624C (en:Method) |
-
0
- NL NL55624D patent/NL55624C/xx active
- BE BE424970D patent/BE424970A/xx unknown
-
1937
- 1937-12-02 FR FR830283D patent/FR830283A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR830283A (fr) | 1938-07-25 |
| NL55624C (en:Method) |