GB655291A - Improvements in or relating to television pick-up tubes or the like - Google Patents

Improvements in or relating to television pick-up tubes or the like

Info

Publication number
GB655291A
GB655291A GB30264/48A GB3026448A GB655291A GB 655291 A GB655291 A GB 655291A GB 30264/48 A GB30264/48 A GB 30264/48A GB 3026448 A GB3026448 A GB 3026448A GB 655291 A GB655291 A GB 655291A
Authority
GB
United Kingdom
Prior art keywords
layer
glass
aluminium oxide
aluminium
semi
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
GB30264/48A
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.)
GEORGE STANLEY PERCIVAL FREEMA
Cinema Television Ltd
Original Assignee
GEORGE STANLEY PERCIVAL FREEMA
Cinema Television 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 GEORGE STANLEY PERCIVAL FREEMA, Cinema Television Ltd filed Critical GEORGE STANLEY PERCIVAL FREEMA
Priority to GB30264/48A priority Critical patent/GB655291A/en
Priority to US122925A priority patent/US2731580A/en
Priority to FR999493D priority patent/FR999493A/en
Priority to DEC3125A priority patent/DE885566C/en
Publication of GB655291A publication Critical patent/GB655291A/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
    • H01J29/02—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
    • H01J29/41—Charge-storage screens using secondary emission, e.g. for supericonoscope
    • H01J29/413—Charge-storage screens using secondary emission, e.g. for supericonoscope for writing and reading of charge pattern on opposite sides of the target, e.g. for superorthicon

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

655,291. Cathode-ray tubes. CINEMATELEVISION, Ltd., and FREEMAN, G. S. P. Nov. 22, 1948, No. 30264. Drawings to Specification. [Class 39 (i)] A television pick-up tube comprises a target consisting of a thin metallic layer on which is arranged to be incident an electron image of the picture to be transmitted, a thin semiconducting layer arranged to be scanned by an electron beam, and a layer between them within which the electrons forming the image are arranged to come to rest and to cause the emission of secondary electrons which build up local negative charges on the semi-conducting layer. The metallic layer may be of aluminium and may be used as the signal plate; the secondary emissive layer may be of aluminium oxide and the semi-conducting layer of glass. The glass may be spaced 0.0002 inches from the aluminium oxide. In another construction the glass is coated with a cellular amorphous layer of aluminium oxide on which an aluminium film is deposited. Specification 655,290 is referred to.
GB30264/48A 1948-11-22 1948-11-22 Improvements in or relating to television pick-up tubes or the like Expired GB655291A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB30264/48A GB655291A (en) 1948-11-22 1948-11-22 Improvements in or relating to television pick-up tubes or the like
US122925A US2731580A (en) 1948-11-22 1949-10-22 Target electrodes for use in television pick-up tube or the like
FR999493D FR999493A (en) 1948-11-22 1949-11-10 Improvements to target electrodes of television analyzer tubes or the like
DEC3125A DE885566C (en) 1948-11-22 1950-10-03 Double-sided storage electrode for image converter tubes in television systems or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30264/48A GB655291A (en) 1948-11-22 1948-11-22 Improvements in or relating to television pick-up tubes or the like

Publications (1)

Publication Number Publication Date
GB655291A true GB655291A (en) 1951-07-18

Family

ID=10304889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30264/48A Expired GB655291A (en) 1948-11-22 1948-11-22 Improvements in or relating to television pick-up tubes or the like

Country Status (4)

Country Link
US (1) US2731580A (en)
DE (1) DE885566C (en)
FR (1) FR999493A (en)
GB (1) GB655291A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840755A (en) * 1952-03-21 1958-06-24 Westinghouse Electric Corp Large storage low noise image tube
DE1056195B (en) * 1953-08-04 1959-04-30 Josef Dirr Circuit arrangement for generating different pulse sequences using a basic clock, especially for telecommunications systems
US2926419A (en) * 1957-05-01 1960-03-01 Franklin H Harris Method of forming a storage electrode
US3179834A (en) * 1960-10-27 1965-04-20 Rca Corp Pickup tube target structure and method of manufacturing the same
NL279364A (en) * 1961-06-07
US3213308A (en) * 1961-11-29 1965-10-19 Westinghouse Electric Corp Ultraviolet radiation detector
US3195972A (en) * 1962-09-21 1965-07-20 Rca Corp Method of fabricating electron tubes having photocathodes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289921A (en) * 1940-06-01 1942-07-14 Rca Corp Photosensitive electrode
USRE22450E (en) * 1940-10-10 1944-02-29 Signal-generating apparatus
US2460093A (en) * 1945-04-19 1949-01-25 Rca Corp Cathode beam transmitter tube
US2518434A (en) * 1945-07-12 1950-08-08 Emi Ltd Electron discharge device such as a television transmitting tube

Also Published As

Publication number Publication date
FR999493A (en) 1952-01-31
DE885566C (en) 1953-08-06
US2731580A (en) 1956-01-17

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