FR843273A - Perfectionnements aux tubes à rayon cathodique - Google Patents
Perfectionnements aux tubes à rayon cathodiqueInfo
- Publication number
- FR843273A FR843273A FR843273DA FR843273A FR 843273 A FR843273 A FR 843273A FR 843273D A FR843273D A FR 843273DA FR 843273 A FR843273 A FR 843273A
- Authority
- FR
- France
- Prior art keywords
- cathode ray
- ray tubes
- tubes
- cathode
- ray
- 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
-
- 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
- H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB24837/37A GB505751A (en) | 1937-09-13 | 1937-09-13 | Improvements in or relating to cathode ray tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR843273A true FR843273A (fr) | 1939-06-28 |
Family
ID=10218008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR843273D Expired FR843273A (fr) | 1937-09-13 | 1938-09-10 | Perfectionnements aux tubes à rayon cathodique |
Country Status (3)
Country | Link |
---|---|
US (1) | US2229766A (fr) |
FR (1) | FR843273A (fr) |
GB (1) | GB505751A (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE475602A (fr) * | 1946-08-23 | |||
FR937296A (fr) * | 1947-06-21 | 1948-08-12 | Csf | Perfectionnements aux dispositifs de mise au point, pour microscope électronique |
US2569654A (en) * | 1948-11-19 | 1951-10-02 | John M Cage | Cathode-ray tube |
US2597363A (en) * | 1951-06-29 | 1952-05-20 | Ibm | Cathode-ray storage tube |
NL187314B (nl) * | 1953-05-15 | Toyama Chemical Co Ltd | Antibacterieel preparaat, alsmede een op plaats 1 gesubstitueerd 7-(3-aminopyrrolidino)-6-fluor-4-oxo-1,4-dihydro-1,8-naftyridine-3-carbonzuur derivaat. | |
BE543332A (fr) * | 1954-12-06 | |||
US2975315A (en) * | 1957-03-13 | 1961-03-14 | Rauland Corp | Cathode-ray tube |
GB2015195A (en) * | 1978-02-15 | 1979-09-05 | Tektronix Inc | Cathode Ray Tube Having Low Voltage Focus and Dynamic Correction |
US5220239A (en) * | 1991-12-09 | 1993-06-15 | Chunghwa Picture Tubes, Ltd. | High density electron beam generated by low voltage limiting aperture gun |
US5159240A (en) * | 1991-12-09 | 1992-10-27 | Chunghwa Picture Tubes, Ltd. | Low voltage limiting aperture electron gun |
US5223764A (en) * | 1991-12-09 | 1993-06-29 | Chunghwa Picture Tubes, Ltd. | Electron gun with low voltage limiting aperture main lens |
US5182492A (en) * | 1992-05-20 | 1993-01-26 | Chunghwa Picture Tubes, Ltd. | Electron beam shaping aperture in low voltage, field-free region of electron gun |
-
1937
- 1937-09-13 GB GB24837/37A patent/GB505751A/en not_active Expired
-
1938
- 1938-09-10 FR FR843273D patent/FR843273A/fr not_active Expired
- 1938-09-13 US US229724A patent/US2229766A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2229766A (en) | 1941-01-28 |
GB505751A (en) | 1939-05-15 |
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