GB449176A - Improvements in or relating to cathode ray tube oscillographs - Google Patents
Improvements in or relating to cathode ray tube oscillographsInfo
- Publication number
- GB449176A GB449176A GB36663/34A GB3666334A GB449176A GB 449176 A GB449176 A GB 449176A GB 36663/34 A GB36663/34 A GB 36663/34A GB 3666334 A GB3666334 A GB 3666334A GB 449176 A GB449176 A GB 449176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- elemental
- screen
- electrons
- projected
- 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 241000036312 Juniperus coahuilensis Species 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Secondary Cells (AREA)
- Glass Compositions (AREA)
Abstract
449,176. Television receivers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and YOUNG, A. J., 61, Galveston Road, Putney, both in London, and MYERS, L. M., Roseberry, Cornfield Road, Middlesbrough. Dec. 21, 1934, No. 36663. [Classes 39 (i) and 40 (iii)] A main beam of electrons is projected on the whole of an area 2 where a picture is to be reproduced, and the density of electrons in different parts of the beam is controlled by an interposed permeable electrode 3 which is scanned by a signal-controlled cathode ray to produce controlling - potentials on different elemental areas. The scanning-ray is modulated in intensity or in velocity and is projected from an electron gun 4b towards the openwork electrode 3. The main beam passes through the electrode to the fluorescent screen 2, and either the electrode or the screen acts as an anode. The screen may consist of particles of carbon which glow when heated by electronic bombardment. The electrode 3 consists of a perforated aluminium plate coated with insulating aluminium oxide, which is coated with conductive material cross-ruled to produce a mosaic of elemental conductive areas, Figs. 2 and 3 (not shown). A sufficient leakage path for the elemental condensers is obtained through the oxide. Alternatively, the electrode consists of conductive rings set in an insulating compound.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB36663/34A GB449176A (en) | 1934-12-21 | 1934-12-21 | Improvements in or relating to cathode ray tube oscillographs |
| US46526A US2259506A (en) | 1934-12-21 | 1935-10-24 | Cathode ray tube oscillograph |
| FR798366D FR798366A (en) | 1934-12-21 | 1935-11-28 | Improvements to cathode ray oscillographs |
| DEM133009D DE755240C (en) | 1934-12-21 | 1935-12-22 | Arrangement for the reception of television broadcasts with a Braun tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB36663/34A GB449176A (en) | 1934-12-21 | 1934-12-21 | Improvements in or relating to cathode ray tube oscillographs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB449176A true GB449176A (en) | 1936-06-22 |
Family
ID=10390143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36663/34A Expired GB449176A (en) | 1934-12-21 | 1934-12-21 | Improvements in or relating to cathode ray tube oscillographs |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2259506A (en) |
| DE (1) | DE755240C (en) |
| FR (1) | FR798366A (en) |
| GB (1) | GB449176A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR812987A (en) * | 1936-01-30 | 1937-05-21 | Improvements to television receivers | |
| GB481094A (en) * | 1936-06-04 | 1938-03-04 | British Thomson Houston Co Ltd | Improvements in and relating to cathode ray devices |
| GB501535A (en) * | 1937-08-31 | 1939-02-28 | Baird Television Ltd | Improvements in or relating to television and like systems |
| BE482590A (en) * | 1945-09-05 | |||
| US2449339A (en) * | 1945-11-13 | 1948-09-14 | Rca Corp | Cathode-ray tube |
| US2614235A (en) * | 1950-04-22 | 1952-10-14 | Rca Corp | Color television pickup tube |
| US2631259A (en) * | 1950-07-12 | 1953-03-10 | Rca Corp | Color television |
| US2862141A (en) * | 1954-02-19 | 1958-11-25 | Westinghouse Electric Corp | Color television tube |
| US2887597A (en) * | 1955-10-27 | 1959-05-19 | Hughes Aircraft Co | Storage screen for direct-viewing storage tube |
| US3031597A (en) * | 1957-12-18 | 1962-04-24 | Itt | Information storage display tube and storage screen assembly therefor |
| US2967255A (en) * | 1958-08-05 | 1961-01-03 | Rca Corp | Image pickup device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE586454C (en) * | 1933-10-21 | Wladislaw Zeitlin Dipl Ing | Method for the brightness modulation of the Braun oscillograph for television purposes and image telegraphy | |
| DE349334C (en) * | 1922-02-28 | Lorenz Akt Ges C | Process for operating Braun tubes with glow cathode | |
| DE581499C (en) * | 1924-08-29 | 1934-09-29 | Apollinar Zeitlin | Braun tubes for telegraphy and television purposes |
| DE499604C (en) * | 1925-07-16 | 1930-06-10 | Abraham Joffe | Electrical insulating body made of crystalline materials |
| FR676546A (en) * | 1928-06-11 | 1930-02-24 | Transmitter and receiver tubes, intended in particular for electric television sets | |
| BE362358A (en) * | 1928-07-12 | |||
| FR715912A (en) * | 1930-05-01 | 1931-12-11 | ||
| US2015570A (en) * | 1930-11-19 | 1935-09-24 | Gen Electric | Cathode ray photographic apparatus |
-
1934
- 1934-12-21 GB GB36663/34A patent/GB449176A/en not_active Expired
-
1935
- 1935-10-24 US US46526A patent/US2259506A/en not_active Expired - Lifetime
- 1935-11-28 FR FR798366D patent/FR798366A/en not_active Expired
- 1935-12-22 DE DEM133009D patent/DE755240C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2259506A (en) | 1941-10-21 |
| DE755240C (en) | 1953-06-01 |
| FR798366A (en) | 1936-05-15 |
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