FR957324A - - Google Patents
Info
- Publication number
- FR957324A FR957324A FR957324DA FR957324A FR 957324 A FR957324 A FR 957324A FR 957324D A FR957324D A FR 957324DA FR 957324 A FR957324 A FR 957324A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H01J29/48—Electron guns
- H01J29/487—Replacing parts of the gun; Relative adjustment of the electrodes
-
- 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
- H01J37/10—Lenses
- H01J37/12—Lenses electrostatic
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electron Sources, Ion Sources (AREA)
- Electron Tubes For Measurement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US673218A US2452893A (en) | 1946-05-31 | 1946-05-31 | Electron lens assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR957324A true FR957324A (en) | 1950-02-18 |
Family
ID=24701742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR957324D Expired FR957324A (en) | 1946-05-31 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2452893A (en) |
| BE (1) | BE480180A (en) |
| FR (1) | FR957324A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2665384A (en) * | 1950-07-18 | 1954-01-05 | Hubert P Yockey | Ion accelerating and focusing system |
| US2719243A (en) * | 1951-07-03 | 1955-09-27 | Du Mont Allen B Lab Inc | Electrostatic electron lens |
| US2759117A (en) * | 1952-05-16 | 1956-08-14 | Farrand Optical Co Inc | Electron lens |
| US2881347A (en) * | 1954-08-31 | 1959-04-07 | Sylvania Electric Prod | Electronic tube packet |
| FR2574978B1 (en) * | 1984-12-14 | 1987-01-16 | Commissariat Energie Atomique | DEVICE FOR IRRADIATION OF MATERIAL BY AN ELECTRONIC BEAM |
| WO2002013227A1 (en) * | 2000-07-27 | 2002-02-14 | Ebara Corporation | Sheet beam test apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USB388112I5 (en) * | 1935-03-30 | |||
| BE426251A (en) * | 1937-02-11 | |||
| GB493790A (en) * | 1937-04-30 | 1938-10-14 | British Thomson Houston Co Ltd | Improvements in or relating to cathode ray devices |
| US2330930A (en) * | 1941-04-30 | 1943-10-05 | Rca Corp | Scanning type of electron microscope |
| US2347965A (en) * | 1942-01-29 | 1944-05-02 | Rca Corp | Art of electron microscopy |
| US2400332A (en) * | 1944-09-27 | 1946-05-14 | Gen Electric | Self-adjusting electrode support |
-
0
- FR FR957324D patent/FR957324A/fr not_active Expired
- BE BE480180D patent/BE480180A/xx unknown
-
1946
- 1946-05-31 US US673218A patent/US2452893A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE480180A (en) | |
| US2452893A (en) | 1948-11-02 |