GB776458A - Improvements in or relating to television camera tubes - Google Patents

Improvements in or relating to television camera tubes

Info

Publication number
GB776458A
GB776458A GB3161854A GB3161854A GB776458A GB 776458 A GB776458 A GB 776458A GB 3161854 A GB3161854 A GB 3161854A GB 3161854 A GB3161854 A GB 3161854A GB 776458 A GB776458 A GB 776458A
Authority
GB
United Kingdom
Prior art keywords
relating
television camera
camera tubes
tubes
image
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
GB3161854A
Inventor
George Baldwin Banks
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.)
Teledyne UK Ltd
Original Assignee
English Electric Valve Co 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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB3161854A priority Critical patent/GB776458A/en
Publication of GB776458A publication Critical patent/GB776458A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • 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
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
    • H01J29/385—Photocathodes comprising a layer which modified the wave length of impinging radiation
    • 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
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/34—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at cathode potential, e.g. orthicon
    • H01J31/36—Tubes with image amplification section, e.g. image-orthicon

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

776,458. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO., Ltd. July 20, 1955 [Nov. 2, 1954], No. 31618/54. Class 39(1). An image orthicon sensitive to subjects of low brightness, such as occur in X-ray fluoroscopy, has the photo-cathode 9 of much greater area than that of the target, the electron image being suitably reduced by an electrostatic electron lens 10 ... 14 consisting of cylinders of progressively decreasing diameter and increasing length.
GB3161854A 1954-11-02 1954-11-02 Improvements in or relating to television camera tubes Expired GB776458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3161854A GB776458A (en) 1954-11-02 1954-11-02 Improvements in or relating to television camera tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3161854A GB776458A (en) 1954-11-02 1954-11-02 Improvements in or relating to television camera tubes

Publications (1)

Publication Number Publication Date
GB776458A true GB776458A (en) 1957-06-05

Family

ID=45939336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3161854A Expired GB776458A (en) 1954-11-02 1954-11-02 Improvements in or relating to television camera tubes

Country Status (1)

Country Link
GB (1) GB776458A (en)

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