JPS568140Y2 - - Google Patents
Info
- Publication number
- JPS568140Y2 JPS568140Y2 JP1977154238U JP15423877U JPS568140Y2 JP S568140 Y2 JPS568140 Y2 JP S568140Y2 JP 1977154238 U JP1977154238 U JP 1977154238U JP 15423877 U JP15423877 U JP 15423877U JP S568140 Y2 JPS568140 Y2 JP S568140Y2
- 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
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
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- 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
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- 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 or ion-optical arrangement
-
- 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 or ion-optical arrangement
- H01J37/06—Electron sources; Electron guns
- H01J37/075—Electron guns using thermionic emission from cathodes heated by particle bombardment or by irradiation, e.g. by laser
-
- 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
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
- H01J37/28—Electron or ion microscopes; Electron or ion diffraction tubes with scanning beams
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7018701A NL7018701A (en) | 1970-12-23 | 1970-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5380361U JPS5380361U (en) | 1978-07-04 |
JPS568140Y2 true JPS568140Y2 (en) | 1981-02-23 |
Family
ID=19811873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1977154238U Expired JPS568140Y2 (en) | 1970-12-23 | 1977-11-18 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3745342A (en) |
JP (1) | JPS568140Y2 (en) |
CA (1) | CA957787A (en) |
DE (1) | DE2161027C3 (en) |
FR (1) | FR2119692A5 (en) |
GB (1) | GB1375995A (en) |
NL (1) | NL7018701A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4115720A (en) * | 1977-03-31 | 1978-09-19 | Rca Corporation | Device having thermionic cathode heated by field-emitted electrons |
NL7906958A (en) * | 1979-09-19 | 1981-03-23 | Philips Nv | METAL WIRE CATHOD FOR ELECTRON RADIUS. |
US4388560A (en) * | 1981-05-26 | 1983-06-14 | Hughes Aircraft Company | Filament dispenser cathode |
US4560897A (en) * | 1983-06-06 | 1985-12-24 | The United States Of America As Represented By The Department Of Energy | Rigid indented cylindrical cathode for X-ray tube |
NL8302275A (en) * | 1983-06-28 | 1985-01-16 | Philips Nv | ELECTRON RADIUS WITH METAL WIRE SOURCE. |
JPH0810637B2 (en) * | 1990-08-04 | 1996-01-31 | 三菱電機株式会社 | High frequency electron gun device |
US6091187A (en) * | 1998-04-08 | 2000-07-18 | International Business Machines Corporation | High emittance electron source having high illumination uniformity |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1028244B (en) * | 1954-09-18 | 1958-04-17 | Zeiss Carl Fa | Method and device for generating glowing electrons in electron beam devices |
-
1970
- 1970-12-23 NL NL7018701A patent/NL7018701A/xx unknown
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1971
- 1971-12-01 US US00203708A patent/US3745342A/en not_active Expired - Lifetime
- 1971-12-09 DE DE2161027A patent/DE2161027C3/en not_active Expired
- 1971-12-20 CA CA130,503A patent/CA957787A/en not_active Expired
- 1971-12-20 GB GB5900671A patent/GB1375995A/en not_active Expired
- 1971-12-23 FR FR7146402A patent/FR2119692A5/fr not_active Expired
-
1977
- 1977-11-18 JP JP1977154238U patent/JPS568140Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1028244B (en) * | 1954-09-18 | 1958-04-17 | Zeiss Carl Fa | Method and device for generating glowing electrons in electron beam devices |
Also Published As
Publication number | Publication date |
---|---|
DE2161027B2 (en) | 1979-03-08 |
US3745342A (en) | 1973-07-10 |
JPS5380361U (en) | 1978-07-04 |
CA957787A (en) | 1974-11-12 |
FR2119692A5 (en) | 1972-08-04 |
DE2161027A1 (en) | 1972-07-13 |
DE2161027C3 (en) | 1979-11-15 |
NL7018701A (en) | 1972-06-27 |
GB1375995A (en) | 1974-12-04 |