GB442666A - Improvements in or relating to television - Google Patents

Improvements in or relating to television

Info

Publication number
GB442666A
GB442666A GB1442234A GB1442234A GB442666A GB 442666 A GB442666 A GB 442666A GB 1442234 A GB1442234 A GB 1442234A GB 1442234 A GB1442234 A GB 1442234A GB 442666 A GB442666 A GB 442666A
Authority
GB
United Kingdom
Prior art keywords
electrode
electrons
silver
consist
cathode ray
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
GB1442234A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US19752A priority Critical patent/US2244466A/en
Priority to NL73528A priority patent/NL45020C/xx
Priority to FR789938D priority patent/FR789938A/en
Priority to DEE2359D priority patent/DE918753C/en
Publication of GB442666A publication Critical patent/GB442666A/en
Priority to US142554A priority patent/US2225063A/en
Priority to FR48537D priority patent/FR48537E/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
    • 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
    • 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

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

442,666. Television. LUBSZYNSKI, H. G., 36, Cherry Grove, West Drayton Road, Hillingdon, and RODDA, S., 170, Ladysmith Road, Enfield, both in Middlesex. May 12, 1934, No. 14422. [Classes 39 (i) and 40 (iii)] An optical image is projected on a photoelectric surface 7, the electrons emitted being accelerated towards and focused upon a mosaic electrode 6 which is scanned by a cathode ray beam 3. The photo-electric surface 7 may consist of a semi-transparent covering on the interior surface of the tube 1 of caesium on an oxidized coating of silver, or it may be a wire mesh coated with photo-electric material. The electrons are preferably focused by a magnetic solenoid 8 and accelerated by an electrode 9. The mosaic electrode 6 may consist of a sheet of mica or comprise silver particles on a mica sheet backed with aluminium, each silver particle forming a condenser which is discharged through the resistance 11 by the cathode ray beam. The electrons are accelerated to such a speed that they produce secondary emission from the electrode 6, leaving each element positively charged. In a modification, the mosaic electrode is scanned on the side opposite to that on which the electrons impinge, Fig. 2 (not shown). The electrode may then consist of silver plugs set in a mesh of insulated wire, and according to the Provisional Specification the focusing coil may be deleted and the screen 7 and electrode 6 brought close together. A screen may be used to shield the cathode ray deflecting means from the focusing coil 8. The optical image may be projected on either side of the surface 7.
GB1442234A 1934-05-12 1934-05-12 Improvements in or relating to television Expired GB442666A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US19752A US2244466A (en) 1934-05-12 1935-05-04 Television
NL73528A NL45020C (en) 1934-05-12 1935-05-11
FR789938D FR789938A (en) 1934-05-12 1935-05-11 Television enhancements
DEE2359D DE918753C (en) 1934-05-12 1935-05-12 Storage cathode ray scanner with a continuous photocathode layer separated from the mosaic screen
US142554A US2225063A (en) 1934-05-12 1937-05-14 Television system
FR48537D FR48537E (en) 1934-05-12 1937-05-19 Television enhancements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1424336A GB475928A (en) 1936-05-20 1936-05-20 Improvements in or relating to television

Publications (1)

Publication Number Publication Date
GB442666A true GB442666A (en) 1936-02-12

Family

ID=10037619

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1442234A Expired GB442666A (en) 1934-05-12 1934-05-12 Improvements in or relating to television
GB1424336A Expired GB475928A (en) 1934-05-12 1936-05-20 Improvements in or relating to television

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1424336A Expired GB475928A (en) 1934-05-12 1936-05-20 Improvements in or relating to television

Country Status (1)

Country Link
GB (2) GB442666A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865004C (en) * 1937-08-25 1953-01-29 Interessengemeinschaft Fuer Ru Arrangement for the reproduction of a television picture, the individual elements of which are transmitted on different carrier waves
DE884507C (en) * 1934-05-12 1953-07-27 Emi Ltd Storage cathode ray scanner with a cohesive photocathode layer separated from the one-sided or two-sided mosaic screen
DE918752C (en) * 1941-02-25 1954-10-04 Emi Ltd Arrangement for image separation tubes
DE918755C (en) * 1935-07-06 1954-10-04 Fernseh Gmbh Image dissection tube with photocathode

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE884507C (en) * 1934-05-12 1953-07-27 Emi Ltd Storage cathode ray scanner with a cohesive photocathode layer separated from the one-sided or two-sided mosaic screen
DE918755C (en) * 1935-07-06 1954-10-04 Fernseh Gmbh Image dissection tube with photocathode
DE865004C (en) * 1937-08-25 1953-01-29 Interessengemeinschaft Fuer Ru Arrangement for the reproduction of a television picture, the individual elements of which are transmitted on different carrier waves
DE918752C (en) * 1941-02-25 1954-10-04 Emi Ltd Arrangement for image separation tubes

Also Published As

Publication number Publication date
GB475928A (en) 1937-11-22

Similar Documents

Publication Publication Date Title
US2211613A (en) Cathode ray tube
US2177360A (en) Optical image intensifier
US2460093A (en) Cathode beam transmitter tube
US2462569A (en) Television receiving tube with storage properties
US2458205A (en) Televison pickup tube
US2100259A (en) Television
US2618761A (en) Negative stored charge pickup tube
US2248977A (en) Electro-optical device
GB442666A (en) Improvements in or relating to television
US2203734A (en) Electron lens
US2173257A (en) Cathode ray tube
GB458744A (en) Improvements in and relating to cathode ray tubes
US2723360A (en) Image orthicon
US3001098A (en) X-ray image intensifying device
US2617954A (en) Pickup tube
US2163546A (en) Apparatus and method for television reception
US2324504A (en) Television transmitting system
US2244466A (en) Television
US2520240A (en) Cathode-ray tube
US2227097A (en) Electron tube apparatus
Iams et al. Television pickup tubes with cathode-ray beam scanning
US2792514A (en) Orthicon electrode structure
GB498867A (en) Improvements in or relating to the generation of signals in television or like systems
US2227092A (en) Cathode ray tube
US2254140A (en) Image analyzing system