GB845598A - Storage screen for direct-viewing storage tube - Google Patents

Storage screen for direct-viewing storage tube

Info

Publication number
GB845598A
GB845598A GB31560/57A GB3156057A GB845598A GB 845598 A GB845598 A GB 845598A GB 31560/57 A GB31560/57 A GB 31560/57A GB 3156057 A GB3156057 A GB 3156057A GB 845598 A GB845598 A GB 845598A
Authority
GB
United Kingdom
Prior art keywords
storage
film
storage surface
screen
boat
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
GB31560/57A
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.)
Raytheon Co
Original Assignee
Hughes Aircraft 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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of GB845598A publication Critical patent/GB845598A/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
    • H01J29/395—Charge-storage screens charge-storage grids exhibiting triode effect
    • 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
    • H01J29/18—Luminescent screens
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers
    • 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
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/18—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with image written by a ray or beam on a grid-like charge-accumulating screen, and with a ray or beam passing through and influenced by this screen before striking the luminescent screen, e.g. direct-view storage tube

Landscapes

  • Surface Treatment Of Glass (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

845,598. Cathode-ray storage tubes. HUGHES AIRCRAFT CO. Oct. 9, 1957 [April 1, 1957], No. 31560/57. Class 39(1). A storage screen for a direct-viewing storage tube comprises a conductive support mesh on one side of which is disposed a uniformly thick layer of dielectric material e.g. talc in granular form to provide a storage surface and a film of magnesium fluoride disposed over the storage surface. The granular storage layer is preferably between 1 and 2 mils thick, so that the layer has low bombardment-induced conductivity. The magnesium fluoride may be evaporated onto the storage surface 42, either before or after the aluminium collector grid 44 is placed in contact with the storage surface. This layer must be thick enough to give its characteristic secondary electron emission to the storage surface but must not be so thick as to form a continuous smooth film over the entire target thereby resulting in the loss of the stable range of operation obtained by breaking up the storage surface into granules. Thus the thickness of the film is preferably between 800 and 20,000 Angstroms. In a process of forming this film, the screen is disposed within a chamber above a boat containing magnesium fluoride to be evaporated. A lens is mounted at an adjustable distance from the boat and is illuminated by a sodium yellow lamp. If the lens is at the same distance from the boat as is the screen a film of “ wavelength thickness is formed at the first minimum of reflection and this thickness can be increased or decreased by moving the lens further from or closer to the boat.
GB31560/57A 1957-04-01 1957-10-09 Storage screen for direct-viewing storage tube Expired GB845598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US649721A US2861207A (en) 1957-04-01 1957-04-01 Storage screen for direct-viewing storage tube

Publications (1)

Publication Number Publication Date
GB845598A true GB845598A (en) 1960-08-24

Family

ID=24605960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31560/57A Expired GB845598A (en) 1957-04-01 1957-10-09 Storage screen for direct-viewing storage tube

Country Status (5)

Country Link
US (1) US2861207A (en)
BE (1) BE565956A (en)
CH (1) CH347902A (en)
FR (1) FR1202314A (en)
GB (1) GB845598A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL227196A (en) * 1957-04-24
US2967255A (en) * 1958-08-05 1961-01-03 Rca Corp Image pickup device
NL262041A (en) * 1960-03-15
DE1639448C3 (en) * 1967-02-23 1985-01-24 Tektronix, Inc., Beaverton, Oreg. Storage screen for a storage tube and method for making the same
JPS58117628A (en) * 1981-12-29 1983-07-13 Matsushita Electric Ind Co Ltd Insulator for storage tube and storage tube using thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE425299A (en) * 1936-12-19
US2711289A (en) * 1951-02-01 1955-06-21 Rca Corp Electronic simulator

Also Published As

Publication number Publication date
CH347902A (en) 1960-07-31
FR1202314A (en) 1960-01-08
BE565956A (en)
US2861207A (en) 1958-11-18

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