GB1296502A - - Google Patents

Info

Publication number
GB1296502A
GB1296502A GB1296502DA GB1296502A GB 1296502 A GB1296502 A GB 1296502A GB 1296502D A GB1296502D A GB 1296502DA GB 1296502 A GB1296502 A GB 1296502A
Authority
GB
United Kingdom
Prior art keywords
electrodes
cathode
modulator
controlled
flip
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
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 filed Critical
Publication of GB1296502A publication Critical patent/GB1296502A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/20—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using multi-beam tubes
    • 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
    • H01J29/467—Control electrodes for flat display tubes, e.g. of the type covered by group H01J31/123

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Measurement Of Radiation (AREA)
  • Electron Beam Exposure (AREA)

Abstract

1296502 Cathode-ray tubes NORTHROP CORP 30 April 1971 [1 May 1970] 12566/71 Heading H1D A cathode-ray tube wherein electrons passing from an extended area cathode 16 to a target 11 are controlled by a plurality of flat control plates 22-25 defining channels and each provided with a pair of electrodes biased by an associated flip-flop (50-53), is characterized in that the control plates actuate simultaneously a plurality of channels in different areas each controlled by an associated modulator. In the drawing a corresponding channel such as 60a- 60d in each of four quadrants is activated, according to the condition of the flip-flops, and a modulator plate 26 is provided with separate modulator electrodes 36a-36d in each quadrant. The electrodes 22-26 may be dynodes and the tube may be of the display, image scanner, or memory type.
GB1296502D 1970-05-01 1971-04-30 Expired GB1296502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3383870A 1970-05-01 1970-05-01

Publications (1)

Publication Number Publication Date
GB1296502A true GB1296502A (en) 1972-11-15

Family

ID=21872751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1296502D Expired GB1296502A (en) 1970-05-01 1971-04-30

Country Status (7)

Country Link
US (1) US3678330A (en)
JP (1) JPS5118133B1 (en)
CA (1) CA920200A (en)
DE (1) DE2120881A1 (en)
FR (1) FR2091007A5 (en)
GB (1) GB1296502A (en)
NL (1) NL7105831A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174535A (en) * 1985-04-29 1986-11-05 Philips Electronic Associated Display tube

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051468A (en) * 1976-07-28 1977-09-27 Rca Corporation Apparatus and method for modulating a flat panel display device
US4158210A (en) * 1977-09-13 1979-06-12 Matsushita Electric Industrial Co., Ltd. Picture image display device
DE3339696A1 (en) * 1983-11-03 1984-04-12 Klaus Dipl.-Ing.(FH) 4150 Krefeld Sundergeld Image reproduction device having a flat screen
US4871949A (en) * 1987-01-23 1989-10-03 Albert Abramson Cathode ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1023887A (en) * 1963-10-02 1966-03-30 M O Valve Co Ltd Improvements in or relating to cathode ray tubes
US3408532A (en) * 1965-12-06 1968-10-29 Northrop Corp Electron beam scanning device
US3382392A (en) * 1967-01-16 1968-05-07 Stromberg Carlson Corp Cathode ray tube simultaneously generating a plurality of shaped electron beams
US3539719A (en) * 1967-07-24 1970-11-10 Northrop Corp Electron beam scanning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174535A (en) * 1985-04-29 1986-11-05 Philips Electronic Associated Display tube
GB2174535B (en) * 1985-04-29 1989-07-05 Philips Electronic Associated Display tube

Also Published As

Publication number Publication date
DE2120881A1 (en) 1971-11-18
FR2091007A5 (en) 1972-01-14
US3678330A (en) 1972-07-18
JPS5118133B1 (en) 1976-06-08
CA920200A (en) 1973-01-30
NL7105831A (en) 1971-11-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee