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GB892927A - Improvements in or relating to television camera tubes - Google Patents

Improvements in or relating to television camera tubes

Info

Publication number
GB892927A
GB892927A GB2654859A GB2654859A GB892927A GB 892927 A GB892927 A GB 892927A GB 2654859 A GB2654859 A GB 2654859A GB 2654859 A GB2654859 A GB 2654859A GB 892927 A GB892927 A GB 892927A
Authority
GB
United Kingdom
Prior art keywords
layer
photo
cathode layer
television camera
relating
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
GB2654859A
Inventor
Eric Douglas Hendry
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 GB2654859A priority Critical patent/GB892927A/en
Priority to CH809760A priority patent/CH370822A/en
Priority to DEE19661A priority patent/DE1154827B/en
Priority to FR834902A priority patent/FR1264349A/en
Publication of GB892927A publication Critical patent/GB892927A/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
    • H01J29/02—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

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

892,927. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Feb. 10, 1960 [Aug. 4, 1959], No. 26548/59. Drawings to Specification. Class 39(1) In a television camera tube of the image orthicon type, a thin electrically-resistive layer is interposed between a substantially transparent conductive back layer and the Customary photo-cathode layer, and a control mesh or grid, maintained at a small potential with respect to the back layer, is spaced from the photo-cathode layer. The resistive layer which may be a metal oxide such as nickel oxide and may be 100 microns thick, prevents the emission from any point of intense highlight from increasing beyond that necessary to fully charge the target, and consequently reduces " halo effects " which would otherwise occur. The photo-cathode layer may be of mosaic form.
GB2654859A 1959-08-04 1959-08-04 Improvements in or relating to television camera tubes Expired GB892927A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2654859A GB892927A (en) 1959-08-04 1959-08-04 Improvements in or relating to television camera tubes
CH809760A CH370822A (en) 1959-08-04 1960-07-15 Shooting tube for television cameras
DEE19661A DE1154827B (en) 1959-08-04 1960-07-22 TV adapter tube
FR834902A FR1264349A (en) 1959-08-04 1960-08-03 TV analyzer tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2654859A GB892927A (en) 1959-08-04 1959-08-04 Improvements in or relating to television camera tubes

Publications (1)

Publication Number Publication Date
GB892927A true GB892927A (en) 1962-04-04

Family

ID=10245374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2654859A Expired GB892927A (en) 1959-08-04 1959-08-04 Improvements in or relating to television camera tubes

Country Status (3)

Country Link
CH (1) CH370822A (en)
DE (1) DE1154827B (en)
GB (1) GB892927A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654853A (en) * 1949-02-28 1953-10-06 Rca Corp Photoelectric apparatus
DE868199C (en) * 1951-05-05 1953-02-23 Fritz Dr Michelssen Electrically sensitive body
GB767570A (en) * 1954-04-29 1957-02-06 English Electric Valve Co Ltd Improvements in or relating to television and like camera tube arrangements

Also Published As

Publication number Publication date
CH370822A (en) 1963-07-31
DE1154827B (en) 1963-09-26

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