NL200487A - - Google Patents
Info
- Publication number
- NL200487A NL200487A NL200487DA NL200487A NL 200487 A NL200487 A NL 200487A NL 200487D A NL200487D A NL 200487DA NL 200487 A NL200487 A NL 200487A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
- H01J23/087—Magnetic focusing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE787290X | 1954-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL200487A true NL200487A (da) |
Family
ID=6699202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL200487D NL200487A (da) | 1954-09-21 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2941111A (da) |
| NL (1) | NL200487A (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2999959A (en) * | 1960-04-04 | 1961-09-12 | Bell Telephone Labor Inc | Traveling wave tube |
| US3255370A (en) * | 1961-11-17 | 1966-06-07 | Sylvania Electric Prod | High convergence electron gun with magnetically shielded cathode |
| US3387167A (en) * | 1964-11-06 | 1968-06-04 | Varian Associates | Linear beam microwave tube having pole caps providing a tapered magnetic field along the beam axis |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2159534A (en) * | 1935-07-23 | 1939-05-23 | Firm Fernseh Ag | Cathode ray focusing coil |
| GB515308A (en) * | 1938-05-25 | 1939-12-01 | Miller Harold | Improvements in or relating to magnetic electron lenses |
| USRE22389E (en) * | 1940-07-13 | 1943-11-02 | Electron beam concentrating | |
| US2687490A (en) * | 1949-09-22 | 1954-08-24 | Sperry Corp | High-frequency beam tube device |
| NL89376C (da) * | 1950-06-17 | |||
| NL93297C (da) * | 1951-12-29 | |||
| US2822500A (en) * | 1952-04-08 | 1958-02-04 | Itt | Traveling wave electron discharge devices |
| US2844754A (en) * | 1953-04-29 | 1958-07-22 | Bell Telephone Labor Inc | Electron beam focusing system |
| BE550523A (da) * | 1955-10-27 |
-
0
- NL NL200487D patent/NL200487A/xx unknown
-
1955
- 1955-07-18 US US522702A patent/US2941111A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2941111A (en) | 1960-06-14 |