GB770333A - Direct-viewing storage tube with character writing electron gun - Google Patents

Direct-viewing storage tube with character writing electron gun

Info

Publication number
GB770333A
GB770333A GB28000/54A GB2800054A GB770333A GB 770333 A GB770333 A GB 770333A GB 28000/54 A GB28000/54 A GB 28000/54A GB 2800054 A GB2800054 A GB 2800054A GB 770333 A GB770333 A GB 770333A
Authority
GB
United Kingdom
Prior art keywords
storage
grid
screen
potential
electrons
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
GB28000/54A
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 GB770333A publication Critical patent/GB770333A/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
    • H01J31/18—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
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • 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
    • H01J31/16—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with mask carrying a number of selectively displayable signs, e.g. charactron, numeroscope
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S313/00—Electric lamp and discharge devices
    • Y10S313/07—Bombardment induced conductivity

Abstract

770,333. Cathode-ray storage tubes. HUGHES AIRCRAFT CO. Sept. 28, 1954 [Oct. 23, 1953], No. 28000/54. Class 39(1). A direct-viewing storage tube has a matrix mask provided with apertures corresponding to information characters designed to shape the writing electron beam. The matrix mask 20 is shown in Fig. 2. The writing beam is generated by electron gun 18 and is directed by deflection plates 48, 49 suitably energized from control circuits so that it passes through the desired character on the mask 20. The beam then traverses an electron lens, either magnetic or electrostatic but preferably the latter to avoid image rotation. The electrostatic lens comprises electrodes 59, 60, 61 so designed that the matrix is in focus on the storage screen 12 and the beam cross-overs are at the centres of deflection of further deflecting means 26 which direct the beam to the appropriate part of the storage screen 12. The latter comprises a contrast control grid 110 in a frame 116 and covered with storage dielectric material 114 e.g. talc which has a high specific resistance. A collector grid 112 has adjacent the surface 114 with its mesh wires at an angle to the grid wires 110. Behind the storage grid are the fluorescent screen 122 and a thin transparent conducting layer 120 e.g. of stannous oxide respectively. The flooding gun 16 comprises a cathode 90, intensity grid 91 and annular electrodes 92, 93 and in conjunction with wall anodes 95, 96 it produces a broad beam of electrons over the entire area of storage screen 12. The unity beam shaped successively by the characters of matrix mask 20 lays down on the storage screen 12 a pattern of letters or a symbol. With the control grid 110 at an appropriate potential, electrons are liberated by the high speed writing beam, imparting a positive potential to the impacted surface and the flood beam liberates a further excess of electrons to increase the charge contrast. To view the image, the contrast control grid is made sufficiently negative to cause the flood electrons to be repelled except at the apertures where the charge is positive, which apertures they penetrate to be accelerated onto the viewing screen. To erase the characters on the screen the potential of the grid 112 is momentarily lowered to less than the critical potential of the storage material, clearing the storage surface to return to the potential of the flood gun cathode. Specification 758,677 is referred to.
GB28000/54A 1953-10-23 1954-09-28 Direct-viewing storage tube with character writing electron gun Expired GB770333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US387984A US2728872A (en) 1953-10-23 1953-10-23 Direct-viewing storage tube with character writing electron gun

Publications (1)

Publication Number Publication Date
GB770333A true GB770333A (en) 1957-03-20

Family

ID=23532132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28000/54A Expired GB770333A (en) 1953-10-23 1954-09-28 Direct-viewing storage tube with character writing electron gun

Country Status (2)

Country Link
US (1) US2728872A (en)
GB (1) GB770333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652170A (en) * 1984-09-24 1987-03-24 Lew Hyok S Slide connectors with frictional locking means

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126494A (en) * 1964-03-24 Cathode ray tube apparatus
US2892186A (en) * 1953-03-05 1959-06-23 Gen Dynamics Corp Analogue data converter
NL186490B (en) * 1954-04-03 Beheer Bv Pfw PROCEDURE FOR THE PREPARATION OF A ODOR MIXTURE AND PROCESS FOR THE PREPARATION OF ODOR-MODIFYING COMPOUNDS.
BE539760A (en) * 1954-07-12
US2864032A (en) * 1954-07-30 1958-12-09 Zenith Radio Corp Method and apparatus for color television
US2894160A (en) * 1954-09-09 1959-07-07 Sheldon Edward Emanuel Electron microscopes
US2889547A (en) * 1954-12-29 1959-06-02 Teleregister Corp Control circuit for character display tube
US2824259A (en) * 1955-06-06 1958-02-18 Hughes Aircraft Co Virtual flood-electron source
NL207764A (en) * 1955-06-07
FR1127986A (en) * 1955-06-16 1956-12-28 Csf Improvement in electron guns of memory tubes
US2999178A (en) * 1955-08-08 1961-09-05 Carlton H Cash Code sorter printer tube
US2991459A (en) * 1955-09-01 1961-07-04 Teleregister Corp Digital storage oscillograph
US2914691A (en) * 1956-01-18 1959-11-24 Gen Electric Compensation of cathode ray post acceleration field distortion
US3087087A (en) * 1956-02-28 1963-04-23 Gen Dynamics Corp Electron beam control apparatus for light responsive display tubes
US2951179A (en) * 1956-05-28 1960-08-30 Gen Electric Electron shield for post acceleration cathode ray tube
US2811668A (en) * 1956-05-29 1957-10-29 Gen Dynamics Corp Electron beam deflection control system
US2824260A (en) * 1956-09-12 1958-02-18 Bell Telephone Labor Inc Direct view storage tube
US2818524A (en) * 1956-10-02 1957-12-31 Hughes Aircraft Co Multi-color storage tube
BE569304A (en) * 1956-10-16
US2907907A (en) * 1956-12-13 1959-10-06 Gen Dynamics Corp Cathode ray tube apparatus
US2943220A (en) * 1957-01-31 1960-06-28 Gen Dynamics Corp Cathode-ray apparatus
DE1172379B (en) * 1957-04-01 1964-06-18 Hughes Aircraft Co Braun tube with a screen and an image memory
US3020441A (en) * 1957-10-09 1962-02-06 Gen Dynamics Corp Character beam-shaped tube
NL234621A (en) * 1958-01-02
US3038101A (en) * 1958-03-31 1962-06-05 Motorola Inc Deflection controlled tube
US3139574A (en) * 1958-04-01 1964-06-30 Massachusetts Inst Technology Perforated matrix character writing cathode ray display tube
US2988660A (en) * 1958-07-02 1961-06-13 Gen Dynamics Corp Electro optical system in a cathode ray tube
GB853079A (en) * 1958-07-22 1960-11-02 Gen Electric Co Ltd Improvements in or relating to cathode ray display devices
US3143681A (en) * 1959-12-07 1964-08-04 Gen Electric Spiral electrostatic electron lens
US3040205A (en) * 1960-05-31 1962-06-19 Harold R Walker Electrostatic vidicon
US3111598A (en) * 1960-08-31 1963-11-19 Gen Dynamics Corp Matrix for a character display tube
NL290419A (en) * 1962-03-21
US3459990A (en) * 1967-07-27 1969-08-05 Westinghouse Electric Corp Voltage regulated direct view storage tube precollimation system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2275017A (en) * 1940-06-18 1942-03-03 Joseph T Mcnaney Signaling system
US2283383A (en) * 1940-06-18 1942-05-19 Joseph T Mcnaney Signaling system
BE475864A (en) * 1942-10-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652170A (en) * 1984-09-24 1987-03-24 Lew Hyok S Slide connectors with frictional locking means

Also Published As

Publication number Publication date
US2728872A (en) 1955-12-27

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