GB606653A - Television transmitting tube - Google Patents

Television transmitting tube

Info

Publication number
GB606653A
GB606653A GB12150/44A GB1215044A GB606653A GB 606653 A GB606653 A GB 606653A GB 12150/44 A GB12150/44 A GB 12150/44A GB 1215044 A GB1215044 A GB 1215044A GB 606653 A GB606653 A GB 606653A
Authority
GB
United Kingdom
Prior art keywords
screen
centre
secondary emitter
anodes
electrons
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
GB12150/44A
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 GB606653A publication Critical patent/GB606653A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/48—Tubes with amplification of output effected by electron multiplier arrangements within the vacuum space
    • 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
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/34—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at cathode potential, e.g. orthicon

Landscapes

  • Details Of Television Scanning (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

606,653. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 26, 1944, No. 12150. Convention date, June 24, 1943. [Class 39 (i)] In a television transmitting - tube, a low velocity beam of electrons is scanned over a spherically concave mosaic screen 4, 5, 6, bearing a charge-image and electrons not collected by the screen are multiplied at a spherically concave secondary emitter 10 and are collected by the second anode 13, the focusing of the beam being effected solely by the electron lens produced by the electrodes 12, 13. The anode 13 may also be secondary emissive, a coarse wire mesh 29 supported by rings 30, 31 acting as the final collector. The centre of deflection 17 and the centre of curvature 18 of the screen 2 do not coincide so that the beam would strike the screen 2 obliquely; this, however, is corrected by electrodes 19, 20 as described in Specification 579,273; the centre of curvature 11 of the secondary emitter 10 is half way between the anodes 12, 13. The aperture 14 in the secondary emitter 10 is preferably 1 mm. in diameter. Dimensions and designing procedure are given; in particular the target diagonal measured as a chordal distance is not greater than 1.3 times the minimum diameter of the anodes 12, 13.
GB12150/44A 1943-06-24 1944-06-26 Television transmitting tube Expired GB606653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US492049A US2414881A (en) 1943-06-24 1943-06-24 Television transmitting tube with a concave secondary electron emitter

Publications (1)

Publication Number Publication Date
GB606653A true GB606653A (en) 1948-08-18

Family

ID=23954731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12150/44A Expired GB606653A (en) 1943-06-24 1944-06-26 Television transmitting tube

Country Status (2)

Country Link
US (1) US2414881A (en)
GB (1) GB606653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918687C (en) * 1947-08-06 1954-10-04 Radio Ind S A Method for attaching a cover to a curved wall, in particular in the case of television tubes
DE969595C (en) * 1951-10-09 1958-06-19 Siemens Ag Storage television receiving tube

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569654A (en) * 1948-11-19 1951-10-02 John M Cage Cathode-ray tube
US2658160A (en) * 1951-11-23 1953-11-03 Rauland Corp Image-reproducing device
US3156967A (en) * 1962-07-13 1964-11-17 Frank R Dansfield Lathe tool holder
US3293479A (en) * 1963-09-11 1966-12-20 Ultra low noise travelling wave tube having a grid voltage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918687C (en) * 1947-08-06 1954-10-04 Radio Ind S A Method for attaching a cover to a curved wall, in particular in the case of television tubes
DE969595C (en) * 1951-10-09 1958-06-19 Siemens Ag Storage television receiving tube

Also Published As

Publication number Publication date
US2414881A (en) 1947-01-28

Similar Documents

Publication Publication Date Title
GB634639A (en) Improvements in or relating to television tubes incorporating electron multiplier units
GB471149A (en) Improvements relating to television or like transmitting tubes
GB606653A (en) Television transmitting tube
GB598540A (en) Low velocity television transmitting apparatus
GB442511A (en) Braun tube
GB488920A (en) Improvements in or relating to electron-optical systems
GB451766A (en) Improvements in or relating to cathode ray tubes
GB579273A (en) Television transmitting apparatus
GB458744A (en) Improvements in and relating to cathode ray tubes
GB443730A (en) Improvements in or relating to cathode ray tubes suitable for use for television and similar oscillograph purposes
GB501437A (en) Improvements in or relating to electron focussing systems
GB562149A (en) Improvements in television pick-up tubes
GB453223A (en) Improvements in or relating to cathode ray tubes, preferably for television purposes
GB469897A (en) Improvements in or relating to cathode ray tubes
GB551665A (en) Improvements in cathode ray tubes
GB495707A (en) Improvements in or relating to focussing systems for use in electric discharge tubes
GB653835A (en) Cathode arrangement for television tubes
GB662757A (en) Electron discharge device
GB540034A (en) Improvements in cathode ray tubes
GB658735A (en) Improvements in cathode-ray pick-up tubes
GB411120A (en) Improvements in or relating to cathode ray or braun tubes
GB470496A (en) Television tube
GB480672A (en) Improvements in or relating to cathode ray tubes for television
GB652267A (en) Improvements in or relating to cathode ray tubes and like devices
GB529410A (en) Improvements in or relating to television transmitting cathode ray tubes