US2949560A - Storage tube with circular scanning - Google Patents

Storage tube with circular scanning Download PDF

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Publication number
US2949560A
US2949560A US654025A US65402557A US2949560A US 2949560 A US2949560 A US 2949560A US 654025 A US654025 A US 654025A US 65402557 A US65402557 A US 65402557A US 2949560 A US2949560 A US 2949560A
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US
United States
Prior art keywords
recording
pick
storage electrode
storage
electrode
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
US654025A
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English (en)
Inventor
Werner A Veith
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
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Publication of US2949560A publication Critical patent/US2949560A/en
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    • 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
    • H01J31/58—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output
    • H01J31/60—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output having means for deflecting, either selectively or sequentially, an electron ray on to separate surface elements of the screen
    • H01J31/62—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output having means for deflecting, either selectively or sequentially, an electron ray on to separate surface elements of the screen with separate reading and writing rays
    • H01J31/64—Tubes for storage of image or information pattern or for conversion of definition of television or like images, i.e. having electrical input and electrical output having means for deflecting, either selectively or sequentially, an electron ray on to separate surface elements of the screen with separate reading and writing rays on opposite sides of screen, e.g. for conversion of definition

Definitions

  • the present invention relates to a storage tube in which the recording and reading or pick-up is effected independently and in which the recording and pick-up electron beams strike against the same side of a storage electrode.
  • Such an arrangement has the substantial advantage over known arrangements wherein the recording and pick-up beams strike against opposite sides of a storage electrode, that the charges respectively applied by the recording beam onto the surface of the storage electrode or released therefrom influence the pick-up beam directly from the surface andnot through the storage layer, dependent upon a practically very sensitive physical effect.
  • the object of the present invention is to provide a storage tube, the simple physical manner of operation of which does not make any demands greater than normal, either on the manufacture and the nature of the individual system parts of the discharge vessel, or on the operating means.
  • the invention provides an electric discharge vessel for the storage of electric signals, comprising a beam generating system for a modulated recording beam of rapid electrons for the recording of the electric signals to be stored and another beam generating system arranged coaxially therewith for an electron beam of slow electrons for the picking up of the stored signals, and a storage electrode arranged between the beam producing system, the storage electrode being in accordance with the invention made of metalbacked mica as a narrow cylindrical member extending coaxial to the axis of the beam system so that the two beams for the recording and pick-up, each describe upon such member a conical path, under control of known deflecting means, thereby recording thereupon circularly in punctiform manner at the same place, the circles coinciding, the recording beam striking obliquely and the pick-up beam, due to electrostatic
  • a simplification may be achieved by using, in place of the image point circles, narrow cylindrical surfaces composed in line form. This may be done by inserting another cylindrical electrode 9 in the path of the recording beam and by partially masking the storage electrode by means of a further cylindrical electrode 10, thereby imparting to the beam a radial distortion, by the cylindrical lens thereby formed, similar to the astigmatism of oblique pencils of rays in optics, and thus deforming the beam into a sort of flat beam.
  • the same result may be obtained in connection with the pick-up beam by the electrodes 7 and 8, so that a narrow cylindrical surface of axial image lines is in each case delimited on the storage electrode by the electrodes 8 and 10. With such an arrangement, it is easily possible to bring about coincidence of the cylindrical paths described by the pick-up and recording beams.
  • the potential of the collector is positive with respect to the electrodes 8 and 10 which act as shutters, similar conditions occur as are present in a triode.
  • the space filled with slow electrons from the free half of the gap may be considered as a virtual cathode from which the electrons arrive at the collector 13 which acts as anode, the electrons being controlled by the potential field formed by the electrodes 8 and 10, corresponding to a control grid of a triode.
  • Positive charges produced by the recording beam on the storage layer 1 Will eflect a change of the potential in the open gap half so that more electrons of the pick-up beam pass to the collector l3 and thus control the collector current corresponding to the stored signal.
  • the pick-up signal can thus be fed to an amplifier 16 completely separated from the recording signal.

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
US654025A 1956-07-11 1957-04-19 Storage tube with circular scanning Expired - Lifetime US2949560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES49436A DE1021090B (de) 1956-07-11 1956-07-11 Elektrisches Entladungsgefaess zur Speicherung elektrischer Signale

Publications (1)

Publication Number Publication Date
US2949560A true US2949560A (en) 1960-08-16

Family

ID=7487281

Family Applications (1)

Application Number Title Priority Date Filing Date
US654025A Expired - Lifetime US2949560A (en) 1956-07-11 1957-04-19 Storage tube with circular scanning

Country Status (5)

Country Link
US (1) US2949560A (enrdf_load_stackoverflow)
DE (1) DE1021090B (enrdf_load_stackoverflow)
FR (1) FR1180727A (enrdf_load_stackoverflow)
GB (1) GB833070A (enrdf_load_stackoverflow)
NL (1) NL113179C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1130940B (de) * 1958-04-03 1962-06-07 Telefunken Patent Signalspeicherroehre mit vorwiegend linienfoermig ausgebildeter Zielelektrode
NL256978A (enrdf_load_stackoverflow) 1959-10-28

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395744A (en) * 1943-07-08 1946-02-26 Conn Ltd C G Frequency changing apparatus and method
US2430038A (en) * 1943-10-05 1947-11-04 Bell Telephone Labor Inc Cathode-ray device for improving signal-to-noise ratio in radar systems
US2464420A (en) * 1943-12-31 1949-03-15 Rca Corp Storage type cathode-ray tube
US2513742A (en) * 1947-08-08 1950-07-04 Pinciroli Andrea Oscillographic cathode-ray tube with cylindrical fluorescent screen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395744A (en) * 1943-07-08 1946-02-26 Conn Ltd C G Frequency changing apparatus and method
US2430038A (en) * 1943-10-05 1947-11-04 Bell Telephone Labor Inc Cathode-ray device for improving signal-to-noise ratio in radar systems
US2464420A (en) * 1943-12-31 1949-03-15 Rca Corp Storage type cathode-ray tube
US2513742A (en) * 1947-08-08 1950-07-04 Pinciroli Andrea Oscillographic cathode-ray tube with cylindrical fluorescent screen

Also Published As

Publication number Publication date
DE1021090B (de) 1957-12-19
FR1180727A (fr) 1959-06-09
NL113179C (enrdf_load_stackoverflow)
GB833070A (en) 1960-04-21

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