BE470596A - - Google Patents
Info
- Publication number
- BE470596A BE470596A BE470596DA BE470596A BE 470596 A BE470596 A BE 470596A BE 470596D A BE470596D A BE 470596DA BE 470596 A BE470596 A BE 470596A
- 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
- H01J29/54—Arrangements for centring ray or beam
-
- 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
- H01J29/64—Magnetic lenses
- H01J29/68—Magnetic lenses using permanent magnets only
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB613846A GB615553A (en) | 1946-02-27 | 1946-02-27 | Improvements in or relating to devices for focusing an electron beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE470596A true BE470596A (en:Method) |
Family
ID=9809118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE470596D BE470596A (en:Method) | 1946-02-27 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE470596A (en:Method) |
| ES (1) | ES176695A1 (en:Method) |
| FR (1) | FR939447A (en:Method) |
| GB (1) | GB615553A (en:Method) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB670431A (en) * | 1949-02-24 | 1952-04-16 | Patrick Richard James Court | Magnetic focussing device for cathode ray tubes |
| US2533687A (en) * | 1949-05-27 | 1950-12-12 | Quam Nichols Company | Magnetic focusing device |
| GB678297A (en) * | 1949-09-14 | 1952-09-03 | John Dudley Francis Green | Suspension arrangement for cathode ray tubes |
| US2533688A (en) * | 1950-01-31 | 1950-12-12 | Quam Nichols Company | Focusing device |
| US2594099A (en) * | 1950-04-22 | 1952-04-22 | Ite Circuit Breaker Ltd | Focusing coil for cathode-ray tubes |
| NL75013C (en:Method) * | 1950-05-04 | |||
| US2533689A (en) * | 1950-06-28 | 1950-12-12 | Quam Nichols Company | Magnetic focusing device |
| US2581657A (en) * | 1950-07-26 | 1952-01-08 | Myron R Heppner | Focusing and centering device for cathode-ray tubes |
| US2568668A (en) * | 1950-08-18 | 1951-09-18 | Best Mfg Co Inc | Cathode-ray tube focusing device of the permanent magnet type |
| US2592185A (en) * | 1950-12-09 | 1952-04-08 | Quam Nichols Company | Focusing device |
| US2580606A (en) * | 1951-03-21 | 1952-01-01 | Best Mfg Company Inc | Cathode-ray tube focusing device |
-
0
- BE BE470596D patent/BE470596A/xx unknown
-
1946
- 1946-02-27 GB GB613846A patent/GB615553A/en not_active Expired
- 1946-12-20 FR FR939447D patent/FR939447A/fr not_active Expired
-
1947
- 1947-02-26 ES ES176695A patent/ES176695A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES176695A1 (es) | 1947-06-01 |
| GB615553A (en) | 1949-01-07 |
| FR939447A (fr) | 1948-11-15 |