US3102847A - Storage tube targets - Google Patents

Storage tube targets Download PDF

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Publication number
US3102847A
US3102847A US747184A US74718458A US3102847A US 3102847 A US3102847 A US 3102847A US 747184 A US747184 A US 747184A US 74718458 A US74718458 A US 74718458A US 3102847 A US3102847 A US 3102847A
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US
United States
Prior art keywords
grid
layer
target
metal
metallic
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 - Lifetime
Application number
US747184A
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English (en)
Inventor
Boulet Francis
Petit Roger
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of US3102847A publication Critical patent/US3102847A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes

Definitions

  • the present invention relates to a method of making a target for storage tubes and to the particular storage tube target made in accordance with the present invention.
  • targets which include an insulating layer, contiguous on one side thereof to a metallic layer and on the other side thereof to a grid also made of metallic m atrial which is very line, for example, of which the pitch of mesh work is of the order of fifty microns.
  • Another object of the present invention is a method of manufacture in which the grid is directly formed on the surface of the insulating layer to improve the manufacturing techniques thereof and reduce the steps and therewith the cost connected therewith.
  • the process according to the present invention includes the following steps:
  • a matrix-grid is thereupon applied on the oxidized surface of this metallic plate and an insulating material diiferent from that which constitutes the metallic oxide of the plate utilized is thereupon applied by evaporation onto the surface covered by the matrix-grid.
  • This insulating material applied onto the surface covered by the matrixgrid must have the following properties:
  • a layer of a metal of which the grid is to be constituted is applied by any suitable method, such as, for example, by pulverization in vacuum, onto the insulating surface.
  • This layer will cover the isles of the second insulating material as well as the channels or grooves therebetween which were left by removal of the matrix 3,192,847 Patented Sept. 3, 1963 grid and which correspond to the network of the wires of the desired grid.
  • the metal under consideration must have the property of good adherence to the metallic oxide forming the insulating layer of the target but of poor adherence to the insulating material of which the isles are formed.
  • Another object of the present invention is to provide a target for storage tubes which excels by the great uniformity throughout the target.
  • FIGURES 1 through 5 are cross-sectional views through a target of a storage tube in accordance with the present invention and illustrating the successive stages in the manufacture of the target according to the steps *1 to 5 listed hereinabove.
  • reference numeral 1 designates the metallic plate, for example, of aluminum which has been oxidized in such a manner that it is covered with a layer 2 of alumina (aluminum oxide A1 0 A matrix-grid 3 is then placed over the surface 2, and a very thin layer of insulating material having the properties (a) and (b) indicated hereinabove is deposited into the holes of the mesh of this grid in any suitable manner, for example, by evaporation under vacuum.
  • silicon monoxide (SiO) is suitable for the application under consideration if the insulating layer of the target is constituted by alumina, and if the metal of the grid is copper.
  • FIGURE 2 shows the isles 4 of silicon monoxide on the surface 2 which subsist after removal of the matrix-grid 3.
  • the channels or grooves 5 form the matrix for the grid to be formed.
  • the channels or grooves 5 and the isles 4 are covered by or are submerged in a layer 6 of metal, for example, projected by cathodic pulveriz-ation under vacuum.
  • the metal of layer 6 may be, for example, cop per which adheres poorly to silicon monoxide (810) but which adheres well to aluminum oxide (A1 0
  • A1 0 aluminum oxide
  • FIGURE 4 after rubbing or any other suitable equivalent action only the metallic structure of the grid 7 remains which adheres to the surface 2 whereas the metallic portions facing the isles 4 have been removed or become detached.
  • FIGURE 5 shows the grid designated therein by reference numeral 7 which has been caused to :grow as the result of passage of the target assembly through an electrolytic bath, for example, of cooper.
  • FIGURE 5 presents the finished product of the target made in conformity with the present invention according to which the structure of the grid is for-med directly on the surface of the insulating layer.
  • the present invention is not limited to the plane structure shown in the drawing. Quite to the contnary, the method described hereinabove is equally applicable if the surface of the metallic grid 1 is curved or nonaplanar, and thereby readily enables also the realization of a convex target structure having the same advan tages as mentioned hereinabove. Consequently, we intend to cover all such changes and modifications as are encompassed by the scope of the appended claim.
  • a method of manufacturing a metal grid fixed with a surface thereof to a surfiace of a first insulating layer comprising the steps of applying against said insulating surface a matrix grid; projecting onto said matrix grid a second layer of an insulating material different from said insulating material; removing said matrix grid thereby establishing a network of grooves in said second insulating layer; projecting onto said grooved layer a coating of metal having the characteristics of being strongly adherent to said first insulating layer material while being loosely adherent to said second insulating layer material; and removing the particles of said metal coating adherent to said second layer surface While leaving a grid struc ture by the portions thereof filling said grooves and adherenrt to said first layer surface, said first insulating layer being of alumina, said grid being of copper, and said second insulating layer being of silicon monoxide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Particle Accelerators (AREA)
US747184A 1957-07-23 1958-07-08 Storage tube targets Expired - Lifetime US3102847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1087712X 1957-07-23

Publications (1)

Publication Number Publication Date
US3102847A true US3102847A (en) 1963-09-03

Family

ID=9613448

Family Applications (1)

Application Number Title Priority Date Filing Date
US747184A Expired - Lifetime US3102847A (en) 1957-07-23 1958-07-08 Storage tube targets

Country Status (5)

Country Link
US (1) US3102847A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1087712B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1182378A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB830645A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL229540A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293474A (en) * 1963-08-01 1966-12-20 Tektronix Inc Phosphor dielectric storage target for cathode ray tube

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123297A (en) * 1934-12-12 1938-07-12 Beynen Laurens Rynhart Process of preparing perforated metal articles
US2262281A (en) * 1939-08-23 1941-11-11 Hagler Benjamin Method of surfacing panels and like articles
US2403239A (en) * 1941-08-16 1946-07-02 Rca Corp Target electrode for electron discharge tubes
US2467734A (en) * 1945-04-12 1949-04-19 Farnsworth Res Corp Shading compensating mosaic screen electrode
US2495042A (en) * 1947-11-12 1950-01-17 Remington Rand Inc Two-sided mosaic and method of manufacturing same
US2588019A (en) * 1946-06-05 1952-03-04 Rca Corp Monoscope target for pickup tubes
US2623183A (en) * 1948-09-01 1952-12-23 Willard E Buck Infrared receiver
US2702270A (en) * 1952-06-07 1955-02-15 Rca Corp Method of making fine mesh metallic screens
US2728693A (en) * 1953-08-24 1955-12-27 Motorola Inc Method of forming electrical conductor upon an insulating base
US2827390A (en) * 1955-02-14 1958-03-18 Thomas Electronics Inc Production of kinescope targets
US2874449A (en) * 1954-12-30 1959-02-24 Philips Corp Method of providing an electrically conductive network on a support of insulating material

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123297A (en) * 1934-12-12 1938-07-12 Beynen Laurens Rynhart Process of preparing perforated metal articles
US2262281A (en) * 1939-08-23 1941-11-11 Hagler Benjamin Method of surfacing panels and like articles
US2403239A (en) * 1941-08-16 1946-07-02 Rca Corp Target electrode for electron discharge tubes
US2467734A (en) * 1945-04-12 1949-04-19 Farnsworth Res Corp Shading compensating mosaic screen electrode
US2588019A (en) * 1946-06-05 1952-03-04 Rca Corp Monoscope target for pickup tubes
US2495042A (en) * 1947-11-12 1950-01-17 Remington Rand Inc Two-sided mosaic and method of manufacturing same
US2623183A (en) * 1948-09-01 1952-12-23 Willard E Buck Infrared receiver
US2702270A (en) * 1952-06-07 1955-02-15 Rca Corp Method of making fine mesh metallic screens
US2728693A (en) * 1953-08-24 1955-12-27 Motorola Inc Method of forming electrical conductor upon an insulating base
US2874449A (en) * 1954-12-30 1959-02-24 Philips Corp Method of providing an electrically conductive network on a support of insulating material
US2827390A (en) * 1955-02-14 1958-03-18 Thomas Electronics Inc Production of kinescope targets

Also Published As

Publication number Publication date
DE1087712B (de) 1960-08-25
GB830645A (en) 1960-03-16
NL229540A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR1182378A (fr) 1959-06-24

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