GB1383033A - Vacuum tubes - Google Patents

Vacuum tubes

Info

Publication number
GB1383033A
GB1383033A GB3916972A GB3916972A GB1383033A GB 1383033 A GB1383033 A GB 1383033A GB 3916972 A GB3916972 A GB 3916972A GB 3916972 A GB3916972 A GB 3916972A GB 1383033 A GB1383033 A GB 1383033A
Authority
GB
United Kingdom
Prior art keywords
photocathode
semi
thermoelectric device
image converter
conductor
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
GB3916972A
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 GB3916972A priority Critical patent/GB1383033A/en
Priority to AU58923/73A priority patent/AU5892373A/en
Priority to IT6943173A priority patent/IT994591B/en
Priority to DE19732341481 priority patent/DE2341481A1/en
Priority to FR7330648A priority patent/FR2197234B3/fr
Publication of GB1383033A publication Critical patent/GB1383033A/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

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

1383033 Cathode-ray tubes ENGLISH ELECTRIC VALVE CO Ltd 18 July 1973 [23 Aug 1972] 39169/72 Heading H1D In a vacuum discharge tube incorporating a semi-conductor element constituting a photocathode or secondary-electron emissive cathode -e.g. a television camera, image converter, or photomultiplier-the element is cooled by a thermoelectric device. In the image converter shown, having a phosphor screen 18 and a semi-conductor photocathode 20-e.g. of Si, GaInAs, or InAsP, doped on the surface facing the screen 18 with Cs or 0-the photocathode is supported by the annular thermoelectric device 26, which is preferably itself secured to a thermally conductive portion of the tube envelope.
GB3916972A 1972-08-23 1972-08-23 Vacuum tubes Expired GB1383033A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB3916972A GB1383033A (en) 1972-08-23 1972-08-23 Vacuum tubes
AU58923/73A AU5892373A (en) 1972-08-23 1973-08-06 Photo-electric tube
IT6943173A IT994591B (en) 1972-08-23 1973-08-10 VACUUM ELECTRONIC TUBE
DE19732341481 DE2341481A1 (en) 1972-08-23 1973-08-16 VACUUM TUBE
FR7330648A FR2197234B3 (en) 1972-08-23 1973-08-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3916972A GB1383033A (en) 1972-08-23 1972-08-23 Vacuum tubes

Publications (1)

Publication Number Publication Date
GB1383033A true GB1383033A (en) 1975-02-05

Family

ID=10408051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3916972A Expired GB1383033A (en) 1972-08-23 1972-08-23 Vacuum tubes

Country Status (5)

Country Link
AU (1) AU5892373A (en)
DE (1) DE2341481A1 (en)
FR (1) FR2197234B3 (en)
GB (1) GB1383033A (en)
IT (1) IT994591B (en)

Also Published As

Publication number Publication date
IT994591B (en) 1975-10-20
FR2197234A1 (en) 1974-03-22
FR2197234B3 (en) 1976-07-30
AU5892373A (en) 1975-02-06
DE2341481A1 (en) 1974-03-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee