BE536427A - - Google Patents
Info
- Publication number
- BE536427A BE536427A BE536427DA BE536427A BE 536427 A BE536427 A BE 536427A BE 536427D A BE536427D A BE 536427DA BE 536427 A BE536427 A BE 536427A
- 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
- H01J29/56—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
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
- H01J37/153—Electron-optical or ion-optical arrangements for the correction of image defects, e.g. stigmators
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Sources, Ion Sources (AREA)
- Electron Beam Exposure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL328885X | 1954-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE536427A true BE536427A (en) |
Family
ID=19784274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE536427D BE536427A (en) | 1954-03-11 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2862129A (en) |
| BE (1) | BE536427A (en) |
| CH (1) | CH328885A (en) |
| DE (1) | DE1040716B (en) |
| FR (1) | FR1120444A (en) |
| GB (1) | GB779462A (en) |
| NL (2) | NL95815C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL285301A (en) * | 1961-11-15 | |||
| US3374349A (en) * | 1966-11-14 | 1968-03-19 | Victor G. Macres | Electron probe having a specific shortfocal length magnetic lens and light microscope |
| GB2192092A (en) * | 1986-06-25 | 1987-12-31 | Philips Electronic Associated | Magnetic lens system |
| JPS63241842A (en) * | 1987-03-30 | 1988-10-07 | Toshiba Corp | Color cathode-ray tube |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE440927A (en) * | 1940-05-08 | |||
| NL82605C (en) * | 1942-04-08 | |||
| GB609480A (en) * | 1944-09-30 | 1948-10-01 | Otto Ernst Heinrich Klemperer | Improvements in or relating to a electron discharge apparatus in which a flattened or ribbon-shaped electron beam is employed |
| US2455676A (en) * | 1946-05-21 | 1948-12-07 | Rca Corp | Electron lens correction device |
| GB665094A (en) * | 1947-04-12 | 1952-01-16 | Ass Elect Ind | Improvements relating to the reduction of primary spherical aberration in magnetic electron lenses |
| US2520813A (en) * | 1947-12-10 | 1950-08-29 | Rudenberg Reinhold | Electron optical system |
| US2707246A (en) * | 1952-09-04 | 1955-04-26 | Gen Electric | Combination focusing-ion trap structures for cathode-ray tubes |
| DE927525C (en) * | 1953-05-06 | 1955-05-12 | Siemens Ag | Arrangement for the compensation of the axial astigmatism of electric or magnetic electron lenses |
-
0
- BE BE536427D patent/BE536427A/xx unknown
- NL NLAANVRAGE7700795,A patent/NL185815B/en unknown
- NL NL95815D patent/NL95815C/xx active
-
1955
- 1955-02-28 US US491161A patent/US2862129A/en not_active Expired - Lifetime
- 1955-03-04 DE DEN10298A patent/DE1040716B/en active Pending
- 1955-03-08 GB GB6789/55A patent/GB779462A/en not_active Expired
- 1955-03-09 FR FR1120444D patent/FR1120444A/en not_active Expired
- 1955-03-09 CH CH328885D patent/CH328885A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB779462A (en) | 1957-07-24 |
| NL185815B (en) | |
| NL95815C (en) | |
| US2862129A (en) | 1958-11-25 |
| DE1040716B (en) | 1958-10-09 |
| FR1120444A (en) | 1956-07-05 |
| CH328885A (en) | 1958-03-31 |