FR845527A - - Google Patents
Info
- Publication number
- FR845527A FR845527A FR845527DA FR845527A FR 845527 A FR845527 A FR 845527A FR 845527D A FR845527D A FR 845527DA FR 845527 A FR845527 A FR 845527A
- 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.)
- 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
- H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
-
- 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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
- H01J29/702—Convergence correction arrangements therefor
- H01J29/703—Static convergence systems
-
- 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
- H01J2229/003—Preventing or cancelling fields entering the enclosure
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF83894D DE745611C (de) | 1937-11-03 | 1937-11-03 | Einrichtung zur Herabsetzung bzw. Unterdrueckung des bei speichernden Bildfaengerroehren auftretenden, durch das magnetische Erdfeld bedingten Stoereffektes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR845527A true FR845527A (da) | 1939-08-25 |
Family
ID=7114180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR845527D Expired FR845527A (da) | 1937-11-03 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE745611C (da) |
| FR (1) | FR845527A (da) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL274303A (da) * | 1961-02-03 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB393651A (en) * | 1930-12-13 | 1933-06-12 | Ulrich Wolfgang Doering | Improvements in or relating to cathode ray tubes |
| CH177048A (de) * | 1932-09-10 | 1935-05-15 | Tobis Tonbild Syndikat Aktieng | Verfahren und Vorrichtung zur Darstellung von elektrischen Modulationen mit Hilfe von Kathodenstrahlröhren. |
| US2224933A (en) * | 1934-02-09 | 1940-12-17 | Loewe Radio Inc | Magnetic distortion correcting means for cathode ray tubes |
| GB454486A (en) * | 1935-02-01 | 1936-10-01 | William Stewart Brown | Improvements in and relating to television transmitting apparatus embodying cathode ray tubes |
| GB449822A (en) * | 1935-03-18 | 1936-07-06 | Gen Electric Co Ltd | Improvements in or relating to cathode ray tubes for use, for example, in television |
-
0
- FR FR845527D patent/FR845527A/fr not_active Expired
-
1937
- 1937-11-03 DE DEF83894D patent/DE745611C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE745611C (de) | 1944-05-15 |