ES472575A1 - Un vidicon perfeccionado - Google Patents

Un vidicon perfeccionado

Info

Publication number
ES472575A1
ES472575A1 ES472575A ES472575A ES472575A1 ES 472575 A1 ES472575 A1 ES 472575A1 ES 472575 A ES472575 A ES 472575A ES 472575 A ES472575 A ES 472575A ES 472575 A1 ES472575 A1 ES 472575A1
Authority
ES
Spain
Prior art keywords
noise
target
noise ratio
signal
improvement
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
ES472575A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES472575A1 publication Critical patent/ES472575A1/es
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
    • H01J29/39—Charge-storage screens
    • H01J29/45—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen
    • H01J29/458—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen pyroelectrical targets; targets for infrared or ultraviolet or X-ray radiations
    • 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
    • H01J31/49—Pick-up adapted for an input of electromagnetic radiation other than visible light and having an electric output, e.g. for an input of X-rays, for an input of infrared radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

Un vidicón perfeccionado, con una relación de señal a ruido mejorada, que comprende una ampolla en la que se ha establecido el vacío que tiene en un extremo una ventana transparente al infrarrojo, un blanco de material piroeléctrico situado dentro de dicha ampolla en la proximidad inmediata a dicha ventana, medios dentro de dicha ampolla para generar un haz de electrones, medios para explorar dicho blanco con dicho haz de electrones, medios para generar un pedestal durante la vuelta del haz y medios para cargar el blanco hasta un potencial mayor que el valor de reposo del pedestal, suprimiendo con ello sustancialmente la falta de uniformidad y el ruido.
ES472575A 1977-08-18 1978-08-16 Un vidicon perfeccionado Expired ES472575A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82557777A 1977-08-18 1977-08-18

Publications (1)

Publication Number Publication Date
ES472575A1 true ES472575A1 (es) 1979-02-16

Family

ID=25244364

Family Applications (1)

Application Number Title Priority Date Filing Date
ES472575A Expired ES472575A1 (es) 1977-08-18 1978-08-16 Un vidicon perfeccionado

Country Status (8)

Country Link
JP (1) JPS5432921A (es)
AU (1) AU3892078A (es)
BR (1) BR7805260A (es)
DE (1) DE2835207A1 (es)
ES (1) ES472575A1 (es)
FR (1) FR2400768A1 (es)
GB (1) GB2003004B (es)
SE (1) SE7808622L (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011534B2 (ja) * 1978-02-24 1985-03-26 株式会社日立製作所 回転電機の固定子鉄心
DE2922031C2 (de) * 1979-05-30 1982-06-03 Heimann Gmbh, 6200 Wiesbaden Wärmebildaufnahmeplatte

Also Published As

Publication number Publication date
FR2400768A1 (fr) 1979-03-16
SE7808622L (sv) 1979-02-19
BR7805260A (pt) 1979-04-17
GB2003004B (en) 1982-02-24
AU3892078A (en) 1980-02-21
GB2003004A (en) 1979-02-28
JPS5432921A (en) 1979-03-10
DE2835207A1 (de) 1979-02-22

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