FR564707A - Improvements in electron discharge devices - Google Patents
Improvements in electron discharge devicesInfo
- Publication number
- FR564707A FR564707A FR564707DA FR564707A FR 564707 A FR564707 A FR 564707A FR 564707D A FR564707D A FR 564707DA FR 564707 A FR564707 A FR 564707A
- Authority
- FR
- France
- Prior art keywords
- discharge devices
- electron discharge
- electron
- devices
- discharge
- Prior art date
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01J—MANUFACTURE OF DAIRY PRODUCTS
- A01J9/00—Milk receptacles
-
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)
-
- 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
- H01J29/485—Construction of the gun or of parts thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Animal Husbandry (AREA)
- Environmental Sciences (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US524874A US1632080A (en) | 1921-12-27 | 1921-12-27 | Electric discharge device |
Publications (1)
Publication Number | Publication Date |
---|---|
FR564707A true FR564707A (en) | 1924-01-09 |
Family
ID=9810947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR564707D Expired FR564707A (en) | 1921-12-27 | 1923-04-05 | Improvements in electron discharge devices |
Country Status (3)
Country | Link |
---|---|
US (1) | US1632080A (en) |
FR (1) | FR564707A (en) |
GB (1) | GB206081A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE768131C (en) * | 1932-03-18 | 1956-03-15 | Siegmund Loewe Dr | Braun's tube, in which all electrodes are held using holders attached to the pinch foot |
US2449569A (en) * | 1943-01-18 | 1948-09-21 | Sperry Corp | Electron beam apparatus |
BE469199A (en) * | 1945-09-15 | |||
US2517726A (en) * | 1946-07-17 | 1950-08-08 | Philco Corp | Ultra high frequency electron tube |
-
1921
- 1921-12-27 US US524874A patent/US1632080A/en not_active Expired - Lifetime
-
1923
- 1923-03-03 GB GB6240/23A patent/GB206081A/en not_active Expired
- 1923-04-05 FR FR564707D patent/FR564707A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1632080A (en) | 1927-06-14 |
GB206081A (en) | 1923-11-01 |
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