JPS5420828B2 - - Google Patents
Info
- Publication number
- JPS5420828B2 JPS5420828B2 JP5691072A JP5691072A JPS5420828B2 JP S5420828 B2 JPS5420828 B2 JP S5420828B2 JP 5691072 A JP5691072 A JP 5691072A JP 5691072 A JP5691072 A JP 5691072A JP S5420828 B2 JPS5420828 B2 JP S5420828B2
- Authority
- JP
- Japan
- 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
- 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
- H01J3/021—Electron guns using a field emission, photo emission, or secondary emission electron source
Landscapes
- Cold Cathode And The Manufacture (AREA)
- Electron Sources, Ion Sources (AREA)
- Particle Accelerators (AREA)
- Solid Thermionic Cathode (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5691072A JPS5420828B2 (en) | 1972-06-09 | 1972-06-09 | |
| GB2649673A GB1426509A (en) | 1972-06-09 | 1973-06-04 | Field-emission electron guns |
| US368520A US3887835A (en) | 1972-06-09 | 1973-06-11 | Field emission electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5691072A JPS5420828B2 (en) | 1972-06-09 | 1972-06-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4918258A JPS4918258A (en) | 1974-02-18 |
| JPS5420828B2 true JPS5420828B2 (en) | 1979-07-25 |
Family
ID=13040599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5691072A Expired JPS5420828B2 (en) | 1972-06-09 | 1972-06-09 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3887835A (en) |
| JP (1) | JPS5420828B2 (en) |
| GB (1) | GB1426509A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289453A (en) * | 1976-01-21 | 1977-07-27 | Hitachi Ltd | Electric field radiation device |
| US4714600A (en) * | 1984-12-24 | 1987-12-22 | Mobil Oil Corporation | Process for production of phosphoric acid from dry matrix by SO3 treatment and extraction |
| DE3930200A1 (en) * | 1989-09-09 | 1991-03-14 | Ptr Praezisionstech Gmbh | ELECTRIC BEAM GENERATOR, ESPECIALLY FOR AN ELECTRON BEAM CANNON |
| JPH06215714A (en) * | 1992-06-05 | 1994-08-05 | Hitachi Ltd | Field emission type transmission electron microscope |
| JP3131339B2 (en) * | 1993-12-22 | 2001-01-31 | 三菱電機株式会社 | Cathode, cathode ray tube and method of operating cathode ray tube |
| FR2792770A1 (en) * | 1999-04-22 | 2000-10-27 | Cit Alcatel | Increased vacuum residual pressure micropoint electron emission generator having cathode and interspersed electrons with rear heating element maintaining temperature above ambient. |
| EP2365511B1 (en) * | 2010-03-10 | 2013-05-08 | ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH | Feedback loop for emitter flash cleaning |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5323663A (en) * | 1976-08-18 | 1978-03-04 | Danfoss As | Circuit device for detecting physical character of flowing media using supersonic method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3678333A (en) * | 1970-06-15 | 1972-07-18 | American Optical Corp | Field emission electron gun utilizing means for protecting the field emission tip from high voltage discharges |
| JPS5323663B1 (en) * | 1971-04-12 | 1978-07-15 |
-
1972
- 1972-06-09 JP JP5691072A patent/JPS5420828B2/ja not_active Expired
-
1973
- 1973-06-04 GB GB2649673A patent/GB1426509A/en not_active Expired
- 1973-06-11 US US368520A patent/US3887835A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5323663A (en) * | 1976-08-18 | 1978-03-04 | Danfoss As | Circuit device for detecting physical character of flowing media using supersonic method |
Also Published As
| Publication number | Publication date |
|---|---|
| US3887835A (en) | 1975-06-03 |
| GB1426509A (en) | 1976-03-03 |
| JPS4918258A (en) | 1974-02-18 |