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GB1046620A - Improvements in or relating to multi-colour display cathode-ray tubes - Google Patents

Improvements in or relating to multi-colour display cathode-ray tubes

Info

Publication number
GB1046620A
GB1046620A GB2936965A GB2936965A GB1046620A GB 1046620 A GB1046620 A GB 1046620A GB 2936965 A GB2936965 A GB 2936965A GB 2936965 A GB2936965 A GB 2936965A GB 1046620 A GB1046620 A GB 1046620A
Authority
GB
United Kingdom
Prior art keywords
iron
relating
ray tubes
colour display
july
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
GB2936965A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1046620A publication Critical patent/GB1046620A/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

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

1,046,620. Colour television tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 12, 1965 [July 15, 1964], No. 29369/65. Heading H1D. The shadow mask of a three-gun colour television display tube consists of, for example, an iron-nickel alloy and is selected to have a thermal expansion coefficient of (15-50) x 10<SP>-7</SP> per ‹ C., in contrast to that of the screen glass substrate of (90-100) x 10<SP>-7</SP> per ‹ C., in order to compensate for misalignment due to temperature differences at temperatures between 0‹ C. and 300‹ C., the mask attaining a higher temperature than the glass in operation. The composition of the iron-nickel alloy is 55% to 62% by weight of iron and at least part of the remainder, nickel.
GB2936965A 1964-07-15 1965-07-12 Improvements in or relating to multi-colour display cathode-ray tubes Expired GB1046620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6408044A NL6408044A (en) 1964-07-15 1964-07-15

Publications (1)

Publication Number Publication Date
GB1046620A true GB1046620A (en) 1966-10-26

Family

ID=19790522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2936965A Expired GB1046620A (en) 1964-07-15 1965-07-12 Improvements in or relating to multi-colour display cathode-ray tubes

Country Status (3)

Country Link
BE (1) BE666836A (en)
GB (1) GB1046620A (en)
NL (1) NL6408044A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121628A1 (en) * 1983-03-03 1984-10-17 Tektronix, Inc. Cathode-ray tube having taut shadow mask
US4904218A (en) * 1987-12-02 1990-02-27 Zenith Electronics Corporation Blackening of non-iron-based flat tensioned foil shadow masks
US4929864A (en) * 1987-12-02 1990-05-29 Zenith Electronics Corporation NI-based FTM shadow masks having a nickel phosphide black layer
US4900976A (en) * 1987-12-02 1990-02-13 Zenith Electronics Corporation Material and assemblies for tensioned foil shadow masks
US4885501A (en) * 1987-12-02 1989-12-05 Zenith Electronics Corporation Blackening of non iron-based flat tensioned foil shadow masks

Also Published As

Publication number Publication date
NL6408044A (en) 1966-01-17
BE666836A (en) 1966-01-13

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