GB1102395A - Electrical charge image storage apparatus - Google Patents

Electrical charge image storage apparatus

Info

Publication number
GB1102395A
GB1102395A GB11800/66A GB1180066A GB1102395A GB 1102395 A GB1102395 A GB 1102395A GB 11800/66 A GB11800/66 A GB 11800/66A GB 1180066 A GB1180066 A GB 1180066A GB 1102395 A GB1102395 A GB 1102395A
Authority
GB
United Kingdom
Prior art keywords
storage
light
target
tube
plate
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
GB11800/66A
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of GB1102395A publication Critical patent/GB1102395A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J31/122—Direct viewing storage tubes without storage grid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/10—Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
    • 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
    • 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
    • H01J29/44—Charge-storage screens exhibiting internal electric effects caused by particle radiation, e.g. bombardment-induced conductivity

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Measurement Of Radiation (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

1,102,395. Cathode-ray tubes. TEKTRONIX Inc. 17 March, 1966 [26 March, 1965], No. 11800/66. Heading H1D. In a direct-viewing bi-stable storage tube such as described in Specification 992,176 in which a combined storage and display target comprises an integral, porous layer of phosphor material through which secondary electrons generated by low velocity flood electrons are transmitted to a transparent, conductive backplate, the phosphor layer is also photo-sensitive and may comprise photo-emissive material such as magnesium oxide or photo-conductive material such as cadmium sulphide uniformly mixed with the phosphor material. The phosphor storage layer may be sensitive to an ultraviolet or to an X-ray image and may be used to store a light image of a graticule scale etched or printed on the inner surface of the tube face-plate beneath the transparent back-plate of the target. The face-plate may be first etched to form notches and the notches then filled with titanium dioxide. The graticule is illuminated by transmitting a flash of light through the outer edge of the face-plate. A separate light source is provided for ordinary illumination of the graticule. To store light images of low intensity the low velocity flood electrons are prevented from striking the target. The storage tube may be used to convert an X-ray image into a visible light image while simultaneously providing an electrical read-out signal. A low intensity light source may be employed to form a pointer spot on the storage layer which is not stored but does provide an electrical read-out signal. The storage target may be divided effectively in two, one area being operated in a storage mode and the other in a non-storage mode, e.g. for comparison or reference purposes. The same electron gun may be used for writing and reading operations and the tube comprises two flood guns. A light image may be projected on to the rear surface of the storage target through a window in the ceramic, funnel portion of the tube envelope. A light image may be projected by use of a point source of light or by use of laser beam or light may be reflected directly off a document. Switch positions of amplifiers and sweep generators may also be stored and reproduced.
GB11800/66A 1965-03-26 1966-03-17 Electrical charge image storage apparatus Expired GB1102395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44315065A 1965-03-26 1965-03-26

Publications (1)

Publication Number Publication Date
GB1102395A true GB1102395A (en) 1968-02-07

Family

ID=23759620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11800/66A Expired GB1102395A (en) 1965-03-26 1966-03-17 Electrical charge image storage apparatus

Country Status (8)

Country Link
US (1) US3426236A (en)
BE (1) BE678289A (en)
CH (1) CH456789A (en)
DE (1) DE1514946C3 (en)
DK (1) DK118194B (en)
GB (1) GB1102395A (en)
IL (1) IL25411A (en)
NL (1) NL6603930A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641555A (en) * 1968-12-09 1972-02-08 Tektronix Inc Computer terminal apparatus
US3736461A (en) * 1971-08-27 1973-05-29 Ibm Dark trace storage tube system
US3774066A (en) * 1972-01-31 1973-11-20 Ibm Interactive-display storage cathode ray tube
US3798633A (en) * 1972-06-29 1974-03-19 Princeton Electronic Prod Data storage and display system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL298991A (en) * 1962-08-06
US3277334A (en) * 1962-09-19 1966-10-04 Itt Charge storage tube and target electrode therefor
US3262008A (en) * 1963-11-12 1966-07-19 Bendix Corp Bistable device
US3322999A (en) * 1963-11-18 1967-05-30 Electro Optical Systems Inc Image-intensifier tube

Also Published As

Publication number Publication date
DE1514946B2 (en) 1974-02-14
IL25411A (en) 1970-09-17
US3426236A (en) 1969-02-04
DE1514946A1 (en) 1969-07-24
NL6603930A (en) 1966-09-27
CH456789A (en) 1968-07-31
BE678289A (en) 1966-09-23
DE1514946C3 (en) 1974-09-05
DK118194B (en) 1970-07-20

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