FR2172230A1 - - Google Patents
Info
- Publication number
- FR2172230A1 FR2172230A1 FR7305200A FR7305200A FR2172230A1 FR 2172230 A1 FR2172230 A1 FR 2172230A1 FR 7305200 A FR7305200 A FR 7305200A FR 7305200 A FR7305200 A FR 7305200A FR 2172230 A1 FR2172230 A1 FR 2172230A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
- H01S3/09707—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser using an electron or ion beam
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J3/00—Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps
- H01J3/02—Electron guns
- H01J3/027—Construction of the gun or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
- H01S3/038—Electrodes, e.g. special shape, configuration or composition
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Solid Thermionic Cathode (AREA)
- Electron Sources, Ion Sources (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22647272A | 1972-02-15 | 1972-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2172230A1 true FR2172230A1 (enExample) | 1973-09-28 |
| FR2172230B1 FR2172230B1 (enExample) | 1978-02-10 |
Family
ID=22849036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7305200A Expired FR2172230B1 (enExample) | 1972-02-15 | 1973-02-14 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3745401A (enExample) |
| JP (1) | JPS4890463A (enExample) |
| DE (1) | DE2307531A1 (enExample) |
| FR (1) | FR2172230B1 (enExample) |
| GB (1) | GB1370753A (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917968A (en) * | 1974-02-22 | 1975-11-04 | Texas Instruments Inc | Area flood gun |
| DE2449263A1 (de) * | 1974-10-16 | 1976-04-22 | Steigerwald Strahltech | Strahlteiler fuer elektronenstrahlarbeitsmaschinen |
| US4695677A (en) * | 1985-06-06 | 1987-09-22 | Ruth Dale G | Wire tensioning system |
| KR0148123B1 (ko) * | 1990-10-24 | 1998-11-02 | 김정배 | 필라멘트 설치 방법 및 그 장치 |
| US5236159A (en) * | 1991-12-30 | 1993-08-17 | Energy Sciences Inc. | Filament clip support |
| DE19843852A1 (de) * | 1998-09-24 | 2000-03-30 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektrische Glühlampe |
| KR100459953B1 (ko) * | 2001-02-20 | 2004-12-04 | 후다바 덴시 고교 가부시키가이샤 | 전자관과 그 제조 방법 |
| DE10324202A1 (de) * | 2003-05-28 | 2004-12-16 | Aixtron Ag | Maskenhaltevorrichtung |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB353905A (en) * | 1929-09-25 | 1931-07-29 | Philips Nv | Improvements relating to electron discharge tubes or thermionic valves |
| US3506871A (en) * | 1967-05-29 | 1970-04-14 | Air Reduction | Electron beam gun having elongated tensioned emitter |
-
1972
- 1972-02-15 US US00226472A patent/US3745401A/en not_active Expired - Lifetime
-
1973
- 1973-01-22 GB GB317273A patent/GB1370753A/en not_active Expired
- 1973-02-12 JP JP1738873A patent/JPS4890463A/ja active Pending
- 1973-02-14 FR FR7305200A patent/FR2172230B1/fr not_active Expired
- 1973-02-15 DE DE19732307531 patent/DE2307531A1/de active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB353905A (en) * | 1929-09-25 | 1931-07-29 | Philips Nv | Improvements relating to electron discharge tubes or thermionic valves |
| US3506871A (en) * | 1967-05-29 | 1970-04-14 | Air Reduction | Electron beam gun having elongated tensioned emitter |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2172230B1 (enExample) | 1978-02-10 |
| DE2307531A1 (de) | 1973-08-23 |
| JPS4890463A (enExample) | 1973-11-26 |
| GB1370753A (en) | 1974-10-16 |
| US3745401A (en) | 1973-07-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |