GB612670A - Improvements in or relating to television and like transmitters - Google Patents

Improvements in or relating to television and like transmitters

Info

Publication number
GB612670A
GB612670A GB16393/46A GB1639346A GB612670A GB 612670 A GB612670 A GB 612670A GB 16393/46 A GB16393/46 A GB 16393/46A GB 1639346 A GB1639346 A GB 1639346A GB 612670 A GB612670 A GB 612670A
Authority
GB
United Kingdom
Prior art keywords
coil
magnetic field
electron image
television
transmitters
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
GB16393/46A
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 GB612670A publication Critical patent/GB612670A/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
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/30—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 anode potential, e.g. iconoscope
    • H01J31/32—Tubes with image amplification section, e.g. image-iconoscope, supericonoscope

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

612,670. Electron image tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 29, 1946, No. 16393. Convention date, May 30, 1945. [Class 39 (i)] In a television camera tube having a magnetic scanning system, a compensating magnetic field is provided to eliminate the effect of the scanning coils on the electron image part of the tube. Fig. 1 shows an " Iconoscope " according to the invention; the coil 36 is in series with the scanning coils 30 and is arranged so that there is no resultant magnetic field acting on the electrons in their passage from the photo-cathode 12 to the mosaic 20. A variable resistance may be included in parallel with coil 36 to enable the degree of compensation to be adjusted.
GB16393/46A 1945-05-30 1946-05-29 Improvements in or relating to television and like transmitters Expired GB612670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US612670XA 1945-05-30 1945-05-30

Publications (1)

Publication Number Publication Date
GB612670A true GB612670A (en) 1948-11-16

Family

ID=22034697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16393/46A Expired GB612670A (en) 1945-05-30 1946-05-29 Improvements in or relating to television and like transmitters

Country Status (2)

Country Link
BE (1) BE612670A (en)
GB (1) GB612670A (en)

Also Published As

Publication number Publication date
BE612670A (en) 1962-05-02

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