GB445094A - Arrangements for operating cathode ray tubes - Google Patents
Arrangements for operating cathode ray tubesInfo
- Publication number
- GB445094A GB445094A GB31685/35A GB3168535A GB445094A GB 445094 A GB445094 A GB 445094A GB 31685/35 A GB31685/35 A GB 31685/35A GB 3168535 A GB3168535 A GB 3168535A GB 445094 A GB445094 A GB 445094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode ray
- ray beam
- strasse
- nov
- deflecting
- 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
Landscapes
- Transforming Electric Information Into Light Information (AREA)
Abstract
445,094. Television. ROGOWSKI, W., 16, Flandrische Strasse, Siegel, Aachen, and DESERNO, P., 12, Swakopmunder Strasse, Berlin, both in Germany. Nov. 15, 1935, No. 31685. Convention date, Nov. 29, 1934. [Classes 39 (i) and 40 (iii)] The concentration of a cathode ray beam is controlled in accordance with the angle of deflection so that the spot on the fluorescent screen is as sharply defined at B, Fig. 1, as at A. The cathode ray beam is correctly focused when undeflected by a solenoid H, Fig. 2, the direct current through which is adjusted by a variable resistance R1. The deflecting potentials applied to the deflecting plates E over a transformer T are also fed to a potentiometer P 1 from which tappings are taken to a push-pull rectifier G, so that a unidirectional current, varying in accordance with the deflecting potentials, flows through an auxiliary focusing solenoid Z to produce a varying component in the concentration of the cathode ray beam. The screen S may be slanting with respect to the undeflected direction of the beam.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2196838X | 1934-11-27 | ||
| DE445094X | 1934-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB445094A true GB445094A (en) | 1936-04-02 |
Family
ID=32070589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31685/35A Expired GB445094A (en) | 1934-11-27 | 1935-11-15 | Arrangements for operating cathode ray tubes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2196838A (en) |
| FR (1) | FR797016A (en) |
| GB (1) | GB445094A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE894566C (en) * | 1950-10-15 | 1953-10-26 | Fernseh Gmbh | Deflection device for cathode ray tubes |
| DE895201C (en) * | 1939-07-27 | 1953-11-02 | Telefunken Gmbh | Circuit arrangement for the concentration of cathode rays |
| DE946634C (en) * | 1950-10-15 | 1956-08-02 | Fernseh Gmbh | Deflection circuit for oscilloscope or television purposes |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE430727A (en) * | 1937-10-20 | |||
| US2448771A (en) * | 1943-09-23 | 1948-09-07 | Du Mont Allen B Lab Inc | Cathode-ray oscillograph circuit |
| US2571306A (en) * | 1947-01-31 | 1951-10-16 | Rauland Corp | Cathode-ray tube focusing system |
| US2472165A (en) * | 1947-04-29 | 1949-06-07 | Philco Corp | Automatic focus control for cathode-ray tubes |
| US2572861A (en) * | 1947-06-03 | 1951-10-30 | Sylvania Electric Prod | Deflection system for cathode-ray tubes |
| US2714176A (en) * | 1952-06-28 | 1955-07-26 | Rca Corp | Beam-controlling systems for multibeam cathode ray tubes |
| US2808537A (en) * | 1954-03-08 | 1957-10-01 | Edgar W Van Winkle | Focus compensation circuit |
| BE545783A (en) * | 1955-03-05 | |||
| US3622836A (en) * | 1968-03-25 | 1971-11-23 | Eastman Kodak Co | Deflection amplifier with dynamic focus control |
-
1935
- 1935-10-28 FR FR797016D patent/FR797016A/en not_active Expired
- 1935-11-15 GB GB31685/35A patent/GB445094A/en not_active Expired
- 1935-11-19 US US50484A patent/US2196838A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE895201C (en) * | 1939-07-27 | 1953-11-02 | Telefunken Gmbh | Circuit arrangement for the concentration of cathode rays |
| DE894566C (en) * | 1950-10-15 | 1953-10-26 | Fernseh Gmbh | Deflection device for cathode ray tubes |
| DE946634C (en) * | 1950-10-15 | 1956-08-02 | Fernseh Gmbh | Deflection circuit for oscilloscope or television purposes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR797016A (en) | 1936-04-20 |
| US2196838A (en) | 1940-04-09 |
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