ES390058A1 - Method and apparatus for adjusting the colour purity of a colour picture display tube - Google Patents

Method and apparatus for adjusting the colour purity of a colour picture display tube

Info

Publication number
ES390058A1
ES390058A1 ES390058A ES390058A ES390058A1 ES 390058 A1 ES390058 A1 ES 390058A1 ES 390058 A ES390058 A ES 390058A ES 390058 A ES390058 A ES 390058A ES 390058 A1 ES390058 A1 ES 390058A1
Authority
ES
Spain
Prior art keywords
purity
adjusting
colour
display tube
color
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
ES390058A
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
Priority claimed from NL707005144A external-priority patent/NL149035B/en
Priority claimed from NL7013515A external-priority patent/NL149633B/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES390058A1 publication Critical patent/ES390058A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • 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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • 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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/44—Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

A method of adjusting the color purity with the help of limbs to adjust the color purity in a color imaging tube, the screen of which is provided with phosphor points of luminescent material upon which are incised at least two beams of electrons so that they light up in different colors and on the neck of whose tube purity magnets and/or purity coils are provided and a deflection unit for deflecting the electron beams, the color purity adjusting members including said magnets and coils and/or the means that secure the deflection unit, at least one electron beam being put into operation during said adjustment, while the image to be presented still lacks content, characterized in that a pole of at least one device to generate a magnetic field is placed in front of the display tube screen and by which the purity adjusting members are adjusted such that balls of the c odor corresponding to the electron beams put into operation are located in predetermined positions within the field. (Machine-translation by Google Translate, not legally binding)
ES390058A 1970-04-10 1971-04-08 Method and apparatus for adjusting the colour purity of a colour picture display tube Expired ES390058A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL707005144A NL149035B (en) 1970-04-10 1970-04-10 PROCEDURE FOR ADJUSTING THE COLOR PURITY IN A COLOR TV DISPLAY TUBE, AS WELL AS A DEVICE FOR PERFORMING THIS PROCEDURE.
NL7013515A NL149633B (en) 1970-09-12 1970-09-12 METHOD FOR ADJUSTING THE COLOR PURITY IN A COLOR TV DISPLAY TUBE, AS WELL AS A DEVICE FOR PERFORMING THIS METHOD.

Publications (1)

Publication Number Publication Date
ES390058A1 true ES390058A1 (en) 1973-06-01

Family

ID=26644536

Family Applications (1)

Application Number Title Priority Date Filing Date
ES390058A Expired ES390058A1 (en) 1970-04-10 1971-04-08 Method and apparatus for adjusting the colour purity of a colour picture display tube

Country Status (8)

Country Link
JP (1) JPS5132409B1 (en)
AT (1) AT306120B (en)
BE (1) BE765537A (en)
CA (1) CA960292A (en)
DE (1) DE2114311C3 (en)
ES (1) ES390058A1 (en)
FR (1) FR2085991B1 (en)
GB (1) GB1339970A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201932A (en) * 1978-02-06 1980-05-06 Rca Corporation Color purity adjusting method
GB2390047B (en) * 2002-06-28 2005-05-11 Textron Fastening Syst Ltd Split die groove maker

Also Published As

Publication number Publication date
CA960292A (en) 1974-12-31
DE2114311A1 (en) 1971-10-21
JPS5132409B1 (en) 1976-09-13
FR2085991B1 (en) 1974-09-06
BE765537A (en) 1971-10-08
DE2114311B2 (en) 1974-03-07
AT306120B (en) 1973-03-26
DE2114311C3 (en) 1974-09-26
GB1339970A (en) 1973-12-05
FR2085991A1 (en) 1971-12-31

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