NL255680A - - Google Patents
Info
- Publication number
- NL255680A NL255680A NL255680DA NL255680A NL 255680 A NL255680 A NL 255680A NL 255680D A NL255680D A NL 255680DA NL 255680 A NL255680 A NL 255680A
- Authority
- NL
- Netherlands
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
-
- 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
- H01J23/06—Electron or ion guns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/027—Construction of the gun or parts thereof
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB32396/59A GB915812A (en) | 1959-09-23 | 1959-09-23 | Improvements in electron-guns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL255680A true NL255680A (fr) |
Family
ID=10337973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL255680D NL255680A (fr) | 1959-09-23 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3141988A (fr) |
| DE (2) | DE6606171U (fr) |
| GB (1) | GB915812A (fr) |
| NL (1) | NL255680A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL278366A (fr) * | 1961-05-27 | |||
| FR2641899A1 (fr) * | 1989-01-17 | 1990-07-20 | Thomson Tubes Electroniques | Canon a electrons muni d'un dispositif actif produisant un champ magnetique au voisinage de la cathode |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB665094A (en) * | 1947-04-12 | 1952-01-16 | Ass Elect Ind | Improvements relating to the reduction of primary spherical aberration in magnetic electron lenses |
| DE1032420B (de) * | 1949-11-30 | 1958-06-19 | Loewe Opta Ag | Kathodenstrahlroehre |
| US3098942A (en) * | 1955-02-24 | 1963-07-23 | Zenith Radio Corp | Magnetic centering device for cathode ray tubes |
-
0
- NL NL255680D patent/NL255680A/xx unknown
-
1959
- 1959-09-23 GB GB32396/59A patent/GB915812A/en not_active Expired
-
1960
- 1960-09-19 US US56924A patent/US3141988A/en not_active Expired - Lifetime
- 1960-09-20 DE DE19606606171U patent/DE6606171U/de not_active Expired
- 1960-09-20 DE DEN18938A patent/DE1231358B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1231358B (de) | 1966-12-29 |
| GB915812A (en) | 1963-01-16 |
| US3141988A (en) | 1964-07-21 |
| DE6606171U (de) | 1970-10-01 |