JPS5796445A - Color picture tube and manufacture - Google Patents

Color picture tube and manufacture

Info

Publication number
JPS5796445A
JPS5796445A JP17260480A JP17260480A JPS5796445A JP S5796445 A JPS5796445 A JP S5796445A JP 17260480 A JP17260480 A JP 17260480A JP 17260480 A JP17260480 A JP 17260480A JP S5796445 A JPS5796445 A JP S5796445A
Authority
JP
Japan
Prior art keywords
magnet
shadow mask
manufacture
picture tube
color picture
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.)
Granted
Application number
JP17260480A
Other languages
Japanese (ja)
Other versions
JPH0318293B2 (en
Inventor
Katsue Morohashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP17260480A priority Critical patent/JPS5796445A/en
Publication of JPS5796445A publication Critical patent/JPS5796445A/en
Publication of JPH0318293B2 publication Critical patent/JPH0318293B2/ja
Granted 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • H01J29/81—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching using shadow masks
    • 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

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To correct the concentrated error by providing a circular permanent magnet at the outer edge of the effective face of a shadow mask while magnetizing or demagnetizing the desired portion of said magnet from the outside of the tube. CONSTITUTION:A shadow mask 3 is arranged through a spring 6 and a mask frame 4 on a panel pin 5 planted on the inner wall of a face plate 1. A planar jor linear circular permanent magnet 36 is provided on the outer edge of the effective face of the shadow mask 3. Then a plurality of magnetizing coil 37 are arranged while facing with said magnet 36 thus to mgnetize or demagnetize the desired portion of said magnet. Consequently the mislanding can be prevented.
JP17260480A 1980-12-09 1980-12-09 Color picture tube and manufacture Granted JPS5796445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17260480A JPS5796445A (en) 1980-12-09 1980-12-09 Color picture tube and manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17260480A JPS5796445A (en) 1980-12-09 1980-12-09 Color picture tube and manufacture

Publications (2)

Publication Number Publication Date
JPS5796445A true JPS5796445A (en) 1982-06-15
JPH0318293B2 JPH0318293B2 (en) 1991-03-12

Family

ID=15944936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17260480A Granted JPS5796445A (en) 1980-12-09 1980-12-09 Color picture tube and manufacture

Country Status (1)

Country Link
JP (1) JPS5796445A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672883U (en) * 1993-03-29 1994-10-11 大王製紙株式会社 Carton outlet structure with tissue paper
JPH08133352A (en) * 1994-11-11 1996-05-28 Alpha Meritsuku:Kk Decorative box for tissue paper and tissue paper storage box

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569938A (en) * 1978-11-21 1980-05-27 Toshiba Corp Color picture tube device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5569938A (en) * 1978-11-21 1980-05-27 Toshiba Corp Color picture tube device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672883U (en) * 1993-03-29 1994-10-11 大王製紙株式会社 Carton outlet structure with tissue paper
JPH08133352A (en) * 1994-11-11 1996-05-28 Alpha Meritsuku:Kk Decorative box for tissue paper and tissue paper storage box

Also Published As

Publication number Publication date
JPH0318293B2 (en) 1991-03-12

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