GB949330A - Improvements in target electrodes and methods of manufacture - Google Patents

Improvements in target electrodes and methods of manufacture

Info

Publication number
GB949330A
GB949330A GB17960/61A GB1796061A GB949330A GB 949330 A GB949330 A GB 949330A GB 17960/61 A GB17960/61 A GB 17960/61A GB 1796061 A GB1796061 A GB 1796061A GB 949330 A GB949330 A GB 949330A
Authority
GB
United Kingdom
Prior art keywords
layer
target
magnesium
noble metal
aluminium
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
GB17960/61A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB949330A publication Critical patent/GB949330A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Hybrid Cells (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

949,330. Cathode-ray tubes. GENERAL ELECTRIC CO. May 17, 1961 [May 19, 1960], No. 17960/61. Drawings to Specification. Heading H1D. A target for use in a television camera tube comprises a composite storage membrane supported solely at its periphery and having a thickness of between 500 and 1000 A, and consisting of a first layer of a homogeneous polycrystalline semi - conducting oxide having straight-through electron conductivity and high lateral resistance and a second layer of a material having high lateral resistance fused to the first layer. The first layer is preferably of magnesium oxide and the second layer is of aluminium oxide or a noble metal sub-divided into a myriad of discrete islets and constituting 0.5 to 10% of the overall thickness of the membrane which may be 750 A. The target may be manufactured by forming a vaporizable film of nitrocellulose across an annular support, evaporating a layer of aluminium or a noble metal such as gold on to this film and coating this layer with magnesium. Subsequent heating of the target in an oxidizing atmosphere vaporizes the nitrocellulose film, oxidizes the magnesium and either oxidizes the aluminium or coagulates the noble metal. The presence of the second layer causes the membrane to be extremely taut and the magnesium oxide to be fine grained. Also the second layer has a lower secondary sensitivity which is desirable for the electron gun side of the target.
GB17960/61A 1960-05-19 1961-05-17 Improvements in target electrodes and methods of manufacture Expired GB949330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30153A US3207937A (en) 1960-05-19 1960-05-19 Thin film storage electrode

Publications (1)

Publication Number Publication Date
GB949330A true GB949330A (en) 1964-02-12

Family

ID=21852795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17960/61A Expired GB949330A (en) 1960-05-19 1961-05-17 Improvements in target electrodes and methods of manufacture

Country Status (4)

Country Link
US (1) US3207937A (en)
DE (1) DE1189210B (en)
GB (1) GB949330A (en)
NL (1) NL265015A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368093A (en) * 1965-07-20 1968-02-06 Hughes Aircraft Co Storage tube with composite target consisting of display phosphor, porous dielectric and metallic membrane collector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290716A (en) * 1962-03-28
GB1142748A (en) * 1965-10-22 1969-02-12 Hughes Aircraft Co Cathode ray storage tubes
US3458745A (en) * 1967-06-09 1969-07-29 Stanford Research Inst Thin wafer-channel multiplier
US3938242A (en) * 1973-09-27 1976-02-17 Rca Corporation Fabrication of liquid crystal devices
US5064369A (en) * 1987-01-27 1991-11-12 Tomy, Inc. Orthodontic device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527732A (en) * 1946-02-07 1950-10-31 Rateau Soc Braking device for aircraft jet turbopropellers
FR971152A (en) * 1947-10-31 1951-01-15
USRE24070E (en) * 1948-01-29 1955-10-04 pierce
US2822493A (en) * 1953-04-24 1958-02-04 Maurice D Harsh Graphechon storage tube
US3002124A (en) * 1956-04-09 1961-09-26 Westinghouse Electric Corp Display storage tube
NL227247A (en) * 1957-05-20
US2922907A (en) * 1958-05-23 1960-01-26 Gen Electric Target electrode assembly
US2947651A (en) * 1958-09-23 1960-08-02 Itt Method of making storage electrode for charge storage tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368093A (en) * 1965-07-20 1968-02-06 Hughes Aircraft Co Storage tube with composite target consisting of display phosphor, porous dielectric and metallic membrane collector

Also Published As

Publication number Publication date
DE1189210B (en) 1965-03-18
NL265015A (en)
US3207937A (en) 1965-09-21

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