GB472859A - Improvements in or relating to electron discharge devices such as television image dissectors - Google Patents

Improvements in or relating to electron discharge devices such as television image dissectors

Info

Publication number
GB472859A
GB472859A GB17417/36A GB1741736A GB472859A GB 472859 A GB472859 A GB 472859A GB 17417/36 A GB17417/36 A GB 17417/36A GB 1741736 A GB1741736 A GB 1741736A GB 472859 A GB472859 A GB 472859A
Authority
GB
United Kingdom
Prior art keywords
television image
relating
discharge devices
electron discharge
coated
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
GB17417/36A
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.)
Farnsworth Television Inc
Original Assignee
Farnsworth Television Inc
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 Farnsworth Television Inc filed Critical Farnsworth Television Inc
Publication of GB472859A publication Critical patent/GB472859A/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
    • H01J31/42—Image pick-up tubes having an input of visible light and electric output with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube
    • 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
    • H01J29/395—Charge-storage screens charge-storage grids exhibiting triode effect
    • 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
    • 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
    • H01J31/18—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with image written by a ray or beam on a grid-like charge-accumulating screen, and with a ray or beam passing through and influenced by this screen before striking the luminescent screen, e.g. direct-view storage tube
    • 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
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • H01J31/52—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output having grid-like image screen through which the electron ray or beam passes and by which the ray or beam is influenced before striking the luminescent output screen, i.e. having "triode action"

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Solid Thermionic Cathode (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

472,859. Coating with metals. FARNSWORTH TELEVISION, Inc. June 23, 1936, No. 17417. Convention date, July 1, 1935. [Class 82 (ii)] [Also in Groups XL and XXXVI] Metal grids 5 coated with insulation for use in television image-dissector tubes are coated on one side with a mosaic 29 of rectangular silver areas by evaporating silver in vacuo from a point source by eddy current heating.
GB17417/36A 1935-07-01 1936-06-23 Improvements in or relating to electron discharge devices such as television image dissectors Expired GB472859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29242A US2292437A (en) 1935-07-01 1935-07-01 Electron image amplifier

Publications (1)

Publication Number Publication Date
GB472859A true GB472859A (en) 1937-10-01

Family

ID=21848002

Family Applications (2)

Application Number Title Priority Date Filing Date
GB17419/36A Expired GB472860A (en) 1935-07-01 1936-06-23 Improvements in or relating to cathode ray tubes
GB17417/36A Expired GB472859A (en) 1935-07-01 1936-06-23 Improvements in or relating to electron discharge devices such as television image dissectors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB17419/36A Expired GB472860A (en) 1935-07-01 1936-06-23 Improvements in or relating to cathode ray tubes

Country Status (3)

Country Link
US (2) US2292437A (en)
FR (2) FR47504E (en)
GB (2) GB472860A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB481094A (en) * 1936-06-04 1938-03-04 British Thomson Houston Co Ltd Improvements in and relating to cathode ray devices
GB499828A (en) * 1937-07-28 1939-01-30 Baird Television Ltd Improvements in or relating to electron discharge devices for use in television and like systems
US2531624A (en) * 1947-05-01 1950-11-28 Bell Telephone Labor Inc Selective signaling system
NL77182C (en) * 1948-12-04
DE969595C (en) * 1951-10-09 1958-06-19 Siemens Ag Storage television receiving tube
US2782334A (en) * 1952-03-10 1957-02-19 Raytheon Mfg Co Velocity modulated electron discharge devices
US2712607A (en) * 1952-07-01 1955-07-05 Orlando Carl Device for intensifying photoelectrostatic image
US2824249A (en) * 1954-02-09 1958-02-18 Hughes Aircraft Co Storage grid for direct-viewing storage tubes
US2946848A (en) * 1954-03-08 1960-07-26 Edgar W Van Winkle Facsimile recorder system
US2808526A (en) * 1955-01-27 1957-10-01 Itt Cathode ray amplifier

Also Published As

Publication number Publication date
FR47504E (en) 1937-05-27
GB472860A (en) 1937-10-01
US2228388A (en) 1941-01-14
US2292437A (en) 1942-08-11
FR808840A (en) 1937-02-16

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