GB1417212A - Shadow mask for a colour television image tube - Google Patents

Shadow mask for a colour television image tube

Info

Publication number
GB1417212A
GB1417212A GB4419773A GB4419773A GB1417212A GB 1417212 A GB1417212 A GB 1417212A GB 4419773 A GB4419773 A GB 4419773A GB 4419773 A GB4419773 A GB 4419773A GB 1417212 A GB1417212 A GB 1417212A
Authority
GB
United Kingdom
Prior art keywords
colour television
layer
steel
shadow mask
mask
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
GB4419773A
Inventor
Unto U Savolainen
Henry Ty
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1417212A publication Critical patent/GB1417212A/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
    • H01J29/006—Arrangements for eliminating unwanted temperature effects
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/923—Physical dimension
    • Y10S428/924—Composite
    • Y10S428/926—Thickness of individual layer specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y10T428/12236—Panel having nonrectangular perimeter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12229—Intermediate article [e.g., blank, etc.]
    • Y10T428/12264—Intermediate article [e.g., blank, etc.] having outward flange, gripping means or interlocking feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12361—All metal or with adjacent metals having aperture or cut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12903—Cu-base component
    • Y10T428/12917—Next to Fe-base component
    • Y10T428/12924—Fe-base has 0.01-1.7% carbon [i.e., steel]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12944—Ni-base component

Abstract

1417212 Colour television tubes TEXAS INSTRUMENTS Inc 20 Sept 1973 [13 Dec 1972] 44197/73 Heading H1D Local distortion of the shadow mask in a colour television tube is reduced by forming the mask of a metal laminate material, one layer of which is of mild steel to provide mechanical strength, and another layer of which is of a material of greater thermal conductivity than the steel. As described, the high thermal conductivity material may be copper, with a layer of steel on one or both sides, which may be darkened to increase cooling by radiation. One or both sides of the composite structure may be coated with a thin layer of nickel, to facilitate the etching of the mask apertures during manufacture. Thickness ranges for the various layers are given.
GB4419773A 1972-12-13 1973-09-20 Shadow mask for a colour television image tube Expired GB1417212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US314872A US3883315A (en) 1972-12-13 1972-12-13 Shadow mask for a color television image tube

Publications (1)

Publication Number Publication Date
GB1417212A true GB1417212A (en) 1975-12-10

Family

ID=23221835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4419773A Expired GB1417212A (en) 1972-12-13 1973-09-20 Shadow mask for a colour television image tube

Country Status (8)

Country Link
US (1) US3883315A (en)
JP (1) JPS4997567A (en)
CA (1) CA995730A (en)
FR (1) FR2327635A1 (en)
GB (1) GB1417212A (en)
IT (1) IT1008559B (en)
NL (1) NL7313705A (en)
SE (1) SE381129B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176050A (en) * 1985-05-29 1986-12-10 Mitsubishi Electric Corp Crt shadow mask

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025138A (en) * 1983-07-20 1985-02-07 Mitsubishi Electric Corp Color picture tube
DE59407882D1 (en) * 1994-03-18 1999-04-08 Clad Lizenz Ag Multi-layer, cold-formable and deep-drawable composite body made of metal
JP2727995B2 (en) * 1994-12-15 1998-03-18 双葉電子工業株式会社 Supporting material alignment jig and method of manufacturing support material alignment jig

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212865A (en) * 1962-06-13 1965-10-19 Texas Instruments Inc Composite electrically conductive spring materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176050A (en) * 1985-05-29 1986-12-10 Mitsubishi Electric Corp Crt shadow mask
GB2176050B (en) * 1985-05-29 1989-09-06 Mitsubishi Electric Corp Shadow mask and fabricating method therefor

Also Published As

Publication number Publication date
FR2327635B1 (en) 1978-03-24
CA995730A (en) 1976-08-24
JPS4997567A (en) 1974-09-14
IT1008559B (en) 1976-11-30
SE381129B (en) 1975-11-24
US3883315A (en) 1975-05-13
NL7313705A (en) 1974-06-17
DE2361599A1 (en) 1974-06-27
FR2327635A1 (en) 1977-05-06
DE2361599B2 (en) 1975-10-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees