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ES423987A1 - A cathodic ray tube perfected to present images in color. (Machine-translation by Google Translate, not legally binding) - Google Patents

A cathodic ray tube perfected to present images in color. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES423987A1
ES423987A1 ES423987A ES423987A ES423987A1 ES 423987 A1 ES423987 A1 ES 423987A1 ES 423987 A ES423987 A ES 423987A ES 423987 A ES423987 A ES 423987A ES 423987 A1 ES423987 A1 ES 423987A1
Authority
ES
Spain
Prior art keywords
color
translation
ray tube
machine
legally binding
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
ES423987A
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 ES423987A1 publication Critical patent/ES423987A1/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
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0777—Coatings

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

An improved cathode ray tube for presenting color images comprising, in a vacuum envelope, means for generating at least two electron beams, a display consisting of a large number of luminescent regions as a minimum in two different colors, and a color selector electrode consisting of a sheet of ferromagnetic material having a large number of holes, said electron beams being assigned to luminescent regions of a color by means of said color selector electrode, characterized by that the sheet of the color selector electrode is covered with a layer consisting of a material having a thermal conductivity greater than said ferromagnetic material, the total thickness of said material having a higher thermal conductivity being at least 25% of the thickness of the mentioned ferromagnetic material. (Machine-translation by Google Translate, not legally binding)
ES423987A 1973-03-08 1974-03-06 A cathodic ray tube perfected to present images in color. (Machine-translation by Google Translate, not legally binding) Expired ES423987A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7303251A NL7303251A (en) 1973-03-08 1973-03-08

Publications (1)

Publication Number Publication Date
ES423987A1 true ES423987A1 (en) 1976-05-16

Family

ID=19818397

Family Applications (1)

Application Number Title Priority Date Filing Date
ES423987A Expired ES423987A1 (en) 1973-03-08 1974-03-06 A cathodic ray tube perfected to present images in color. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
JP (1) JPS49122660A (en)
AU (1) AU6624774A (en)
BE (1) BE811955A (en)
DE (1) DE2408271A1 (en)
ES (1) ES423987A1 (en)
FR (1) FR2220868B3 (en)
IT (1) IT1009207B (en)
NL (1) NL7303251A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7504324A (en) * 1975-04-11 1976-10-13 Philips Nv CATHOD BEAM TUBE FOR DISPLAYING COLORED IMAGES.
NL7515039A (en) * 1975-12-24 1977-06-28 Philips Nv CATHOD BEAM TUBE FOR DISPLAYING COLORED IMAGES.
DE2739518C2 (en) * 1977-09-02 1987-02-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Color cathode ray tube
JPS5576553A (en) * 1978-12-05 1980-06-09 Mitsubishi Electric Corp Color braun tube
JPS58225539A (en) * 1982-06-23 1983-12-27 Mitsubishi Electric Corp Color picture tube
JPS60119060A (en) * 1983-11-30 1985-06-26 Toshiba Corp Color picture tube
JPS6048653U (en) * 1984-08-14 1985-04-05 株式会社東芝 color picture tube

Also Published As

Publication number Publication date
NL7303251A (en) 1974-09-10
AU6624774A (en) 1975-09-04
DE2408271A1 (en) 1974-09-12
IT1009207B (en) 1976-12-10
FR2220868A1 (en) 1974-10-04
JPS49122660A (en) 1974-11-22
BE811955A (en) 1974-09-06
FR2220868B3 (en) 1976-12-17

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