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ES332534A1 - Cathode rays tube device. (Machine-translation by Google Translate, not legally binding) - Google Patents

Cathode rays tube device. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES332534A1
ES332534A1 ES0332534A ES332534A ES332534A1 ES 332534 A1 ES332534 A1 ES 332534A1 ES 0332534 A ES0332534 A ES 0332534A ES 332534 A ES332534 A ES 332534A ES 332534 A1 ES332534 A1 ES 332534A1
Authority
ES
Spain
Prior art keywords
electrode
mesh
cylindrical ring
translation
cylindrical
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
ES0332534A
Other languages
Spanish (es)
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 ES332534A1 publication Critical patent/ES332534A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J31/38—Tubes with photoconductive screen, e.g. vidicon
    • 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun

Abstract

A cathode ray tube device of the Vidicon type for capturing television images, which includes an electrostatic electronic lens having partially overlapping cylindrical electrodes, in which a mesh electrode is disposed between the final cylindrical electrode of the electronic lens and the photosensitive screen, said mesh electrode being secured in a cylindrical ring having an internal diameter that is substantially equal to that of the final lens electrode, and a space existing between said cylindrical ring and the final lens electrode, so that These parts can be kept at different power. CHARACTERIZED in that the space between the final lens electrode and the cylindrical ring of the mesh-shaped electrode has a width comprised between 0.034 and 0.046 times the internal diameter of the cylindrical ring of the mesh-shaped electrode, the width of the cylindrical ring being included between 0.11 and 0.16 times said diameter and the electrode potential being in the form of a mesh between 1.6 and 2.2 times higher than that of the final lens electrode. (Machine-translation by Google Translate, not legally binding)
ES0332534A 1965-10-23 1966-10-21 Cathode rays tube device. (Machine-translation by Google Translate, not legally binding) Expired ES332534A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6513751A NL6513751A (en) 1965-10-23 1965-10-23

Publications (1)

Publication Number Publication Date
ES332534A1 true ES332534A1 (en) 1967-10-01

Family

ID=19794441

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0332534A Expired ES332534A1 (en) 1965-10-23 1966-10-21 Cathode rays tube device. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
AT (1) AT261697B (en)
BE (1) BE688745A (en)
CH (1) CH449793A (en)
DE (1) DE1564463A1 (en)
ES (1) ES332534A1 (en)
GB (1) GB1160075A (en)
NL (1) NL6513751A (en)
SE (1) SE322259B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652846A (en) * 1979-10-03 1981-05-12 Hitachi Ltd Electrostatically focusing and electromagnetically deflecting image pick-up tube

Also Published As

Publication number Publication date
NL6513751A (en) 1967-04-24
AT261697B (en) 1968-05-10
SE322259B (en) 1970-04-06
DE1564463A1 (en) 1970-01-22
BE688745A (en) 1967-04-21
GB1160075A (en) 1969-07-30
CH449793A (en) 1968-01-15

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