NL192009A - - Google Patents
Info
- Publication number
- NL192009A NL192009A NL192009DA NL192009A NL 192009 A NL192009 A NL 192009A NL 192009D A NL192009D A NL 192009DA NL 192009 A NL192009 A NL 192009A
- 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
- H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US389625A US2976457A (en) | 1953-11-02 | 1953-11-02 | Electron lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL192009A true NL192009A (en:Method) |
Family
ID=23539026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL192009D NL192009A (en:Method) | 1953-11-02 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2976457A (en:Method) |
| FR (1) | FR1113393A (en:Method) |
| GB (1) | GB773377A (en:Method) |
| NL (1) | NL192009A (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL285301A (en:Method) * | 1961-11-15 | |||
| DE1216455B (de) * | 1964-03-25 | 1966-05-12 | Siemens Ag | Verfahren zum Ausrichten der Feldachse eines elektronenoptischen Linsen, insbesondere in einem Elektronenmikroskop zugeordneten Stigmators und Anordnung zur Durchfuehrung des Verfahrens |
| US3358174A (en) * | 1964-12-18 | 1967-12-12 | Gen Electric | Electron gun having a segmented control electrode |
| GB1233812A (en:Method) * | 1969-05-16 | 1971-06-03 | ||
| JPS5945171B2 (ja) * | 1979-12-28 | 1984-11-05 | 日本電子株式会社 | 電子レンズ |
| JPS57206173A (en) * | 1981-06-15 | 1982-12-17 | Nippon Telegr & Teleph Corp <Ntt> | Focusing deflecting device for charged corpuscule beam |
| US4673794A (en) * | 1985-05-10 | 1987-06-16 | National Research Institute For Metals | Electron beam welding method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB455200A (en) * | 1935-06-19 | 1936-10-15 | Fernseh Ag | Improvements in or relating to deflecting means for cathode-ray tubes |
| US2354287A (en) * | 1942-04-20 | 1944-07-25 | Rca Corp | Dynamic method of correcting the spherical aberration of electron lenses |
| US2443107A (en) * | 1945-07-30 | 1948-06-08 | Rca Corp | Electron optical system and method |
| BE477488A (en:Method) * | 1945-08-28 | |||
| US2455676A (en) * | 1946-05-21 | 1948-12-07 | Rca Corp | Electron lens correction device |
| FR944238A (fr) * | 1947-03-13 | 1949-03-30 | Csf | Méthode de correction des optiques électroniques |
| GB665094A (en) * | 1947-04-12 | 1952-01-16 | Ass Elect Ind | Improvements relating to the reduction of primary spherical aberration in magnetic electron lenses |
| BE481554A (en:Method) * | 1947-06-26 | |||
| US2555850A (en) * | 1948-01-28 | 1951-06-05 | Nicholas D Glyptis | Ion trap |
-
0
- NL NL192009D patent/NL192009A/xx unknown
-
1953
- 1953-11-02 US US389625A patent/US2976457A/en not_active Expired - Lifetime
-
1954
- 1954-10-05 GB GB28710/54A patent/GB773377A/en not_active Expired
- 1954-10-13 FR FR1113393D patent/FR1113393A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2976457A (en) | 1961-03-21 |
| FR1113393A (fr) | 1956-03-28 |
| GB773377A (en) | 1957-04-24 |