GB595256A - Improvements in or relating to television apparatus - Google Patents

Improvements in or relating to television apparatus

Info

Publication number
GB595256A
GB595256A GB17539/44A GB1753944A GB595256A GB 595256 A GB595256 A GB 595256A GB 17539/44 A GB17539/44 A GB 17539/44A GB 1753944 A GB1753944 A GB 1753944A GB 595256 A GB595256 A GB 595256A
Authority
GB
United Kingdom
Prior art keywords
photo
reflecting layer
shaped
electrode
electric
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
GB17539/44A
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
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
Priority claimed from US489869A external-priority patent/US2440735A/en
Application filed by Farnsworth Television and Radio Corp filed Critical Farnsworth Television and Radio Corp
Publication of GB595256A publication Critical patent/GB595256A/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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • 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
    • 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
    • H01J31/48—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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/89—Optical components associated with the vessel
    • H01J2229/893—Optical components associated with the vessel using lenses

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Lenses (AREA)

Abstract

595,256. Electron image tubes. FARNSWORTH TELEVISION & RADIO CORPORATION. Sept. 13, 1944, No. 17539. Convention date, June 5, 1943. [Class 39 (i)] A television image analysing tube comprises a spherically-shaped wall 13, Fig. 2, coated interiorly with a light-reflecting layer 21, an opposite wall 36 shaped so as to act as a correcting lens, a spherically-shaped photo-electric electrode 39 disposed between the said walls and facing the reflecting layer 21, and electronic apparatus 43-46 in the stem portion 12 cooperating with the photo-electric electrode 39. The device may be an image dissector as in Fig. 1 (not shown), where an electron multiplier co-operates with a photo-electric cathode, or an iconoscope or orthicon, Fig. 2, in which case an electron gun 43-46 co-operates with a mosaic electrode 39. The photo-electric electrode may be supported by a flanged glass or ceramic tube mounted in a central opening in the wall 36, Fig. 1 (not shown), or by a spider-like structure formed of wires 37, 38, Fig. 2. The reflecting layer 21 may be of gold or silver. Electromagnetic and/or electrostatic scanning and focusing may be used.
GB17539/44A 1943-06-05 1944-09-13 Improvements in or relating to television apparatus Expired GB595256A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US489869A US2440735A (en) 1943-06-05 1943-06-05 Electrooptical device
US769006A US2440736A (en) 1943-06-05 1947-08-16 Image analyzing tube

Publications (1)

Publication Number Publication Date
GB595256A true GB595256A (en) 1947-12-01

Family

ID=27049858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17539/44A Expired GB595256A (en) 1943-06-05 1944-09-13 Improvements in or relating to television apparatus

Country Status (2)

Country Link
US (1) US2440736A (en)
GB (1) GB595256A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE478360A (en) * 1946-10-24
US3047870A (en) * 1955-09-13 1962-07-31 Chicago Aerial Ind Inc Oscillographic viewing and recording systems
US2955219A (en) * 1959-02-16 1960-10-04 Rauland Corp Electron discharge device
US4409515A (en) * 1978-02-06 1983-10-11 Kloss Henry E Projection television tube and process for forming same
US4365183A (en) * 1978-02-06 1982-12-21 Kloss Henry E Projection televison tube and process for forming same

Also Published As

Publication number Publication date
US2440736A (en) 1948-05-04

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