ES383405A1 - Colour television picture tube - Google Patents

Colour television picture tube

Info

Publication number
ES383405A1
ES383405A1 ES383405A ES383405A ES383405A1 ES 383405 A1 ES383405 A1 ES 383405A1 ES 383405 A ES383405 A ES 383405A ES 383405 A ES383405 A ES 383405A ES 383405 A1 ES383405 A1 ES 383405A1
Authority
ES
Spain
Prior art keywords
studs
resilient members
apertures
colour television
faceplate
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
ES383405A
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 ES383405A1 publication Critical patent/ES383405A1/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06Screens for shielding; Masks interposed in the electron stream
    • H01J29/07Shadow masks for colour television tubes
    • H01J29/073Mounting arrangements associated with shadow masks

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

In a colour television tube wherein a shadow mask is supported in a faceplate by means of resilient members attached to the mask and provided with apertures which engage studs on the faceplate, the greater thermal expansion and hardness of the members may cause them to deform the studs when they shrink on cooling from the high temperatures employed in processing the tube the rigidity caused by this effect is avoided by making the apertures in the resilient members circular and the studs triangular with rounded apices. The resilient members may be bimetal strips, the strips being joined along their narrow edges and the aperture being provided in the strip having the larger thermal expansion coefficient. The studs are conical and the angle of the cone should preferably be increased from the usual 15 to 20 degrees. As a modification the studs may be secured to the resilient members and the apertures pro - vided in the envelope or in a member secured to the envelope.
ES383405A 1969-09-06 1970-09-04 Colour television picture tube Expired ES383405A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6913617A NL6913617A (en) 1969-09-06 1969-09-06

Publications (1)

Publication Number Publication Date
ES383405A1 true ES383405A1 (en) 1973-02-16

Family

ID=19807848

Family Applications (1)

Application Number Title Priority Date Filing Date
ES383405A Expired ES383405A1 (en) 1969-09-06 1970-09-04 Colour television picture tube

Country Status (8)

Country Link
AT (1) AT297107B (en)
BE (1) BE755784A (en)
CH (1) CH514229A (en)
DE (1) DE2042079A1 (en)
ES (1) ES383405A1 (en)
FR (1) FR2060954A5 (en)
GB (1) GB1260077A (en)
NL (1) NL6913617A (en)

Also Published As

Publication number Publication date
CH514229A (en) 1971-10-15
NL6913617A (en) 1971-03-09
BE755784A (en) 1971-03-04
FR2060954A5 (en) 1971-06-18
GB1260077A (en) 1972-01-12
AT297107B (en) 1972-03-10
DE2042079A1 (en) 1971-03-11

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