GB569436A - Improvements in television transmitting tubes - Google Patents

Improvements in television transmitting tubes

Info

Publication number
GB569436A
GB569436A GB13613/43A GB1361343A GB569436A GB 569436 A GB569436 A GB 569436A GB 13613/43 A GB13613/43 A GB 13613/43A GB 1361343 A GB1361343 A GB 1361343A GB 569436 A GB569436 A GB 569436A
Authority
GB
United Kingdom
Prior art keywords
source
mosaic
electrons
aug
television transmitting
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
Application number
GB13613/43A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB569436A publication Critical patent/GB569436A/en
Expired legal-status Critical Current

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
    • H01J29/02—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
    • 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
    • H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

569,436. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 20, 1943, No. 13613. Convention date, Aug. 21, 1942. [Class 39 (i)] In a television transmitting tube including within an evacuated envelope, an electron gun 2, a mosaic target electrode 12, and means for scanning the mosaic with the beam from the gun, a signal plate 4 is co-extensive with the mosaic and a source 13 of photo-electrons is provided. co-planar with the mosaic but so placed that the capacity between the source 13 and plate 4 is negligible. The purpose of this additional. source of electrons is to introduce compensation in the picture to remove dark spot formation. Further photo electric surfaces 15 may be provided to assist this control and a lamp 14 with a filter 16 of varying opacity may be provided'to illuminate the source 13 from behind. Specification 491,292 is referred to.
GB13613/43A 1942-08-21 1943-08-20 Improvements in television transmitting tubes Expired GB569436A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455596A US2368884A (en) 1942-08-21 1942-08-21 Television transmitting apparatus

Publications (1)

Publication Number Publication Date
GB569436A true GB569436A (en) 1945-05-24

Family

ID=23809476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13613/43A Expired GB569436A (en) 1942-08-21 1943-08-20 Improvements in television transmitting tubes

Country Status (2)

Country Link
US (1) US2368884A (en)
GB (1) GB569436A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916175C (en) * 1950-10-28 1954-08-05 Cfcmug Image dismantling tube

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733292A (en) * 1956-01-31 System fqb correcting-the-equilibrium
US2445040A (en) * 1943-05-13 1948-07-13 Rca Corp Dark spot corrector
US2504972A (en) * 1946-04-29 1950-04-25 Farnsworth Res Corp Picture and sound transmitter
NL76663C (en) * 1949-10-25
DE880147C (en) * 1949-10-27 1953-05-07 Pye Limited, Cambridge (Grossbritannien) Arrangement for generating television picture signals by means of a picture storage tube
US2667600A (en) * 1950-10-02 1954-01-26 Cathodeon Ltd Television pickup tube
NL94738C (en) * 1950-12-06
US2755401A (en) * 1951-11-16 1956-07-17 Rca Corp Color television pickup tubes
US2765422A (en) * 1951-11-19 1956-10-02 Itt Television camera tube
US2881353A (en) * 1952-01-09 1959-04-07 Hyman A Michlin Producing luminescent images by electroluminescence
US2771566A (en) * 1953-01-09 1956-11-20 Itt Cathode ray electron discharge device
US2735035A (en) * 1953-07-08 1956-02-14 Television pick-up tubes and transmitting
US2951899A (en) * 1954-08-30 1960-09-06 Gen Electric Information storage method and apparatus
US2900569A (en) * 1955-07-11 1959-08-18 Rca Corp Photoconductive type pickup tubes
US3158683A (en) * 1961-11-21 1964-11-24 Philco Corp Composite signal-producing apparatus with means for producing sync pulses by offsetting black level

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916175C (en) * 1950-10-28 1954-08-05 Cfcmug Image dismantling tube

Also Published As

Publication number Publication date
US2368884A (en) 1945-02-06

Similar Documents

Publication Publication Date Title
GB569436A (en) Improvements in television transmitting tubes
GB614248A (en) Improvements in or relating to television and like pick-up tubes
GB471149A (en) Improvements relating to television or like transmitting tubes
GB449176A (en) Improvements in or relating to cathode ray tube oscillographs
GB501058A (en) Improvements in or relating to cathode ray tubes
GB520106A (en) Improvements in or relating to television and like transmitting cathode ray tubes
GB518574A (en) Improvements in or relating to cathode ray tubes
GB590468A (en) Television transmitting system
GB417182A (en) Improvements in cathode ray tubes
GB461646A (en) Improvements in or relating to television and like transmitters
GB450973A (en) Improvements in or relating to cathode-ray tubes
GB469897A (en) Improvements in or relating to cathode ray tubes
GB442724A (en) Braun tube
GB675868A (en) Improvements relating to television or like pick-up tubes
GB470496A (en) Television tube
GB683603A (en) Improvements in or relating to electron discharge pick-up tubes suitable for use in television
GB613891A (en) Improvements in or relating to cathode ray tubes
GB440196A (en) Improvements in and relating to electric discharge devices
GB475928A (en) Improvements in or relating to television
GB529410A (en) Improvements in or relating to television transmitting cathode ray tubes
GB478967A (en) Improvements in or relating to electric discharge devices
GB657633A (en) Improvements relating to circuit arrangements comprising a television transmission tube
GB402607A (en) Improvements in or relating to television and like systems
GB486787A (en) Improvements in image dissector tubes for use in television systems
GB626141A (en) Improvements relating to electron discharge devices such as television transmission tubes