GB1208753A - Improvements relating to electron discharge devices - Google Patents

Improvements relating to electron discharge devices

Info

Publication number
GB1208753A
GB1208753A GB501467A GB501467A GB1208753A GB 1208753 A GB1208753 A GB 1208753A GB 501467 A GB501467 A GB 501467A GB 501467 A GB501467 A GB 501467A GB 1208753 A GB1208753 A GB 1208753A
Authority
GB
United Kingdom
Prior art keywords
plates
strips
wall
cathode
mesh
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
GB501467A
Inventor
Hans Gerhard Lubszynski
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB501467A priority Critical patent/GB1208753A/en
Priority to DE19681639220 priority patent/DE1639220C3/en
Publication of GB1208753A publication Critical patent/GB1208753A/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
    • H01J29/46—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
    • 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Particle Accelerators (AREA)

Abstract

1,208,753. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. 22 Jan., 1968 [2 Feb.,1967], No. 5014/67. Heading HID. In a cathode-ray tube provided with first deflecting means and with second orthogonal deflecting means further from the electron gun in the form of a pair of opposed parallel plates 6 and 7, a plurality of elongate longitudinallyextending strips are provided at each side of the gap between the plates to reduce charges on the wall of the envelope or to screen the beam from such charges. The plates are provided with flanges, as shown, and strips 11 and 12 are attached to a wall anode 8 maintained at a potential equal to the mean potential of the plates 6 and 7. The strips 11 and 12 may be provided by wall coatings. The tube shown is a vidicon and comprises an electron gun 1, two pairs of deflecting plates 2 and 3 which also provide focusing in one direction, a diaphragm 4 including a mesh 5 which acts with the plates 6 and 7 to provide focusing in the other direction, and the electrode 8 and mesh 9 which form a lens to bring the deflected beam into normal incidence on to the target 12.
GB501467A 1967-02-02 1967-02-02 Improvements relating to electron discharge devices Expired GB1208753A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB501467A GB1208753A (en) 1967-02-02 1967-02-02 Improvements relating to electron discharge devices
DE19681639220 DE1639220C3 (en) 1967-02-02 1968-01-31 Cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB501467A GB1208753A (en) 1967-02-02 1967-02-02 Improvements relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB1208753A true GB1208753A (en) 1970-10-14

Family

ID=9788123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB501467A Expired GB1208753A (en) 1967-02-02 1967-02-02 Improvements relating to electron discharge devices

Country Status (2)

Country Link
DE (1) DE1639220C3 (en)
GB (1) GB1208753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0205906A1 (en) * 1985-05-20 1986-12-30 Matsushita Electric Industrial Co., Ltd. Image display apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0205906A1 (en) * 1985-05-20 1986-12-30 Matsushita Electric Industrial Co., Ltd. Image display apparatus

Also Published As

Publication number Publication date
DE1639220B2 (en) 1973-03-15
DE1639220A1 (en) 1972-07-27
DE1639220C3 (en) 1973-10-04

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees