JPS57136746A - Color picture tube of focus mask type - Google Patents

Color picture tube of focus mask type

Info

Publication number
JPS57136746A
JPS57136746A JP2148381A JP2148381A JPS57136746A JP S57136746 A JPS57136746 A JP S57136746A JP 2148381 A JP2148381 A JP 2148381A JP 2148381 A JP2148381 A JP 2148381A JP S57136746 A JPS57136746 A JP S57136746A
Authority
JP
Japan
Prior art keywords
picture tube
color picture
color selection
parts
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.)
Pending
Application number
JP2148381A
Other languages
Japanese (ja)
Inventor
Shigeo Takenaka
Eizaburo Hamano
Hisashi Okada
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 JP2148381A priority Critical patent/JPS57136746A/en
Publication of JPS57136746A publication Critical patent/JPS57136746A/en
Pending 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

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To enable a color picture tube to be mass-produced with high accuracy by providing the peripheral flanged parts of a first and a second color selection electrodes with reference penetration holes, and fitting the projections of an insulating supporting structure into the said holes so as to constitute a color selection electrode group. CONSTITUTION:A color picture tube of focus mask type includes an electron gun 2, which is installed within the neck part of an outer case 1, and a color selection electrode group 4, which is installed near a screen 8. A first and a second color selection electrode 21 and 22 consist of porous effective parts 21a and 22a, which have a given curvature, and plain flanged parts 21b and 22b, which extend from the parts 21a and 22a and have plural reference penetration holes. They are positioned by placing an insulating supporting structure 24, which is made of ceramics and has reference projections, between them, and are assembled by being fused to a supporting structure 26. Consequently, the color picture tube can be mass-produced by assembling it with high accuracy by use of the above reference penetration holes and the above reference projections.
JP2148381A 1981-02-18 1981-02-18 Color picture tube of focus mask type Pending JPS57136746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2148381A JPS57136746A (en) 1981-02-18 1981-02-18 Color picture tube of focus mask type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2148381A JPS57136746A (en) 1981-02-18 1981-02-18 Color picture tube of focus mask type

Publications (1)

Publication Number Publication Date
JPS57136746A true JPS57136746A (en) 1982-08-23

Family

ID=12056212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2148381A Pending JPS57136746A (en) 1981-02-18 1981-02-18 Color picture tube of focus mask type

Country Status (1)

Country Link
JP (1) JPS57136746A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108335A2 (en) * 1982-11-01 1984-05-16 Kabushiki Kaisha Toshiba Color picture tube
JPH0230039A (en) * 1988-04-19 1990-01-31 Mitsubishi Electric Corp Shadow mask of color cathode-ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108335A2 (en) * 1982-11-01 1984-05-16 Kabushiki Kaisha Toshiba Color picture tube
JPH0230039A (en) * 1988-04-19 1990-01-31 Mitsubishi Electric Corp Shadow mask of color cathode-ray tube

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