GB521992A - Improvements in or relating to television transmitter cathode ray tubes - Google Patents
Improvements in or relating to television transmitter cathode ray tubesInfo
- Publication number
- GB521992A GB521992A GB34945/38A GB3494538A GB521992A GB 521992 A GB521992 A GB 521992A GB 34945/38 A GB34945/38 A GB 34945/38A GB 3494538 A GB3494538 A GB 3494538A GB 521992 A GB521992 A GB 521992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- metal
- silver
- layer
- oxidized
- 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
- 229910044991 metal oxide Inorganic materials 0.000 abstract 4
- 150000004706 metal oxides Chemical class 0.000 abstract 4
- 239000010445 mica Substances 0.000 abstract 3
- 229910052618 mica group Inorganic materials 0.000 abstract 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052792 caesium Inorganic materials 0.000 abstract 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 abstract 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229910001923 silver oxide Inorganic materials 0.000 abstract 1
- -1 vanadic' oxide Chemical compound 0.000 abstract 1
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
- H01J29/02—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
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/39—Charge-storage screens
- H01J29/43—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
521,992. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1938, No. 34945. Convention date, Nov. 30, 1937. [Class 39 (i)] A photo-sensitive mosaic electrode has on a mica base 14 a layer 16 of higher metal-oxide such as manganese dioxide, vanadic' oxide, chromic oxide or stannic oxide i.e. an oxide higher than the monoxide. On this is deposited the usual discrete oxidized silver elements 17 which are sensitized with caesium 18; the caesium which falls on the layer 16 between the discrete elements becomes oxidized reducing the metal oxide to the monoxide and itself losing its conducting property. The metal oxide may be formed on the mica base inside the cathode ray tube or before the base is inserted in the tube. The discrete elements are deposited on the metal-oxide either from finely divided silver oxide or from a film of silver subsequently segregated into particles and oxidized. The back of the mica base has the usual continuous conducting layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US177195A US2171213A (en) | 1937-11-30 | 1937-11-30 | Television transmitting tube and electrode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB521992A true GB521992A (en) | 1940-06-05 |
Family
ID=22647596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34945/38A Expired GB521992A (en) | 1937-11-30 | 1938-11-30 | Improvements in or relating to television transmitter cathode ray tubes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2171213A (en) |
| DE (1) | DE705015C (en) |
| GB (1) | GB521992A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429933A (en) * | 1945-08-08 | 1947-10-28 | Western Electric Co | Image translating device |
| US2730639A (en) * | 1950-10-16 | 1956-01-10 | Emi Ltd | Target structures such as are utilised in television transmission tubes |
| US2690519A (en) * | 1952-09-17 | 1954-09-28 | Farnsworth Res Corp | Incandescent screen for projection tubes |
| US3449162A (en) * | 1965-09-17 | 1969-06-10 | Analytic Systems Co | Method of making oxygen measuring cells |
| US3761762A (en) * | 1972-02-11 | 1973-09-25 | Rca Corp | Image intensifier camera tube having an improved electron bombardment induced conductivity camera tube target comprising a chromium buffer layer |
-
1937
- 1937-11-30 US US177195A patent/US2171213A/en not_active Expired - Lifetime
-
1938
- 1938-11-30 GB GB34945/38A patent/GB521992A/en not_active Expired
- 1938-12-01 DE DER103924D patent/DE705015C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE705015C (en) | 1941-04-15 |
| US2171213A (en) | 1939-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB415411A (en) | Improvements in high vacuum cathode ray tubes | |
| GB465060A (en) | Improvements in and relating to cathode ray tube television transmitting apparatus | |
| GB521992A (en) | Improvements in or relating to television transmitter cathode ray tubes | |
| GB454422A (en) | Improvements in or relating to photo-electrically sensitive means for use in cathode ray tubes and like devices | |
| GB471149A (en) | Improvements relating to television or like transmitting tubes | |
| US2162391A (en) | Electron tube with high ohmic wall coatings | |
| GB449176A (en) | Improvements in or relating to cathode ray tube oscillographs | |
| GB529777A (en) | Improvements in or relating to television transmitting and like cathode ray tubes | |
| GB534343A (en) | Improvements in and relating to photo-sensitive electrode structures | |
| GB462550A (en) | Improvements in or relating to television transmission systems comprising cathode ray tubes | |
| GB363103A (en) | Improvements in and relating to photo-electric apparatus | |
| GB421201A (en) | Improvements in or relating to methods of manufacturing cathode ray tubes and like apparatus | |
| GB469079A (en) | Improvements in or relating to electron discharge devices comprising photo-electrically-active electrodes | |
| US2682479A (en) | Photosurface of a panchromatic type and method of preparing same | |
| GB505618A (en) | Improvements in or relating to electron discharge devices, more particularly for television transmission systems | |
| GB1378990A (en) | Luminescent screen assemblies for post-deflection focusing type colour picture tubes | |
| GB384094A (en) | Improvements in or relating to television and like receivers and cathode ray tubes for use therein | |
| GB383889A (en) | Improvements in or relating to cathode ray tubes | |
| GB435639A (en) | Improvements in or relating to the reception of television and the like by cathode ray tubes | |
| GB519042A (en) | Improvements in or relating to cathode ray tubes and to fluorescent screens suitabletherefor | |
| GB516455A (en) | Improvements relating to cathode ray tubes | |
| GB514881A (en) | X-ray converter | |
| GB518588A (en) | Improvements in or relating to screens for cathode ray tubes | |
| GB491292A (en) | Improvements in or relating to cathode ray television transmitter tubes | |
| GB402607A (en) | Improvements in or relating to television and like systems |