JPS57103239A - Color picture tube - Google Patents

Color picture tube

Info

Publication number
JPS57103239A
JPS57103239A JP17894280A JP17894280A JPS57103239A JP S57103239 A JPS57103239 A JP S57103239A JP 17894280 A JP17894280 A JP 17894280A JP 17894280 A JP17894280 A JP 17894280A JP S57103239 A JPS57103239 A JP S57103239A
Authority
JP
Japan
Prior art keywords
shadowmask
curvature
picture tube
screen
optimal
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
JP17894280A
Other languages
Japanese (ja)
Other versions
JPS6367309B2 (en
Inventor
Hisashi Okada
Yoshio Suzuki
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 JP17894280A priority Critical patent/JPS57103239A/en
Publication of JPS57103239A publication Critical patent/JPS57103239A/en
Publication of JPS6367309B2 publication Critical patent/JPS6367309B2/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
    • H01J29/02—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
    • H01J2229/0788—Parameterised dimensions of aperture plate, e.g. relationships, polynomial expressions

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To obtain the optimal Q-value throughout the entire service area of a screen, and to obtain a high quality picture tube, by making the curvature of a shadowmask of an external container which is provided with the shadowmask and a fluorescent screen in a specific cross section. CONSTITUTION:The curvature R is different depending on directions such as the vertical axis direction, horizontal axis direction, and arbitrary directions in the relation to a shadowmask 32 and panel 31. Therefore a mask configuration the curvature of which varies continuously is needed, and the optimal Q-value can be obtained throughout the entire service area of the screen by making the cross section configuration sectioned in a plane including at least the tube axis in a form represented by an equation-I. Thus mask molding curvatures which are applicable to all color picture tubes can be given, and a high quality picture tube can be obtained.
JP17894280A 1980-12-19 1980-12-19 Color picture tube Granted JPS57103239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17894280A JPS57103239A (en) 1980-12-19 1980-12-19 Color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17894280A JPS57103239A (en) 1980-12-19 1980-12-19 Color picture tube

Publications (2)

Publication Number Publication Date
JPS57103239A true JPS57103239A (en) 1982-06-26
JPS6367309B2 JPS6367309B2 (en) 1988-12-23

Family

ID=16057332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17894280A Granted JPS57103239A (en) 1980-12-19 1980-12-19 Color picture tube

Country Status (1)

Country Link
JP (1) JPS57103239A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59108243A (en) * 1982-12-13 1984-06-22 Toshiba Corp Cathode ray tube
FR2541817A1 (en) * 1983-02-25 1984-08-31 Rca Corp CATHODE RAY TUBE WITH IMPROVED SHADOW MASK CONTOUR
JPS59165348A (en) * 1983-03-09 1984-09-18 Toshiba Corp Cathode-ray tube
JPS59165349A (en) * 1983-03-09 1984-09-18 Toshiba Corp Cathode-ray tube
JPS59165350A (en) * 1983-03-09 1984-09-18 Toshiba Corp Cathode-ray tube
US4697119A (en) * 1985-01-11 1987-09-29 Kabushiki Kaisha Toshiba Color cathode ray tube having a non-spherical curved mask
JP2008132956A (en) * 2006-10-31 2008-06-12 Nippon Plast Co Ltd Table device and console box

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0373981B2 (en) * 1982-12-13 1991-11-25
JPS59108243A (en) * 1982-12-13 1984-06-22 Toshiba Corp Cathode ray tube
US4839556A (en) * 1983-02-25 1989-06-13 Rca Licensing Corporation Cathode-ray tube having an improved shadow mask contour
FR2541817A1 (en) * 1983-02-25 1984-08-31 Rca Corp CATHODE RAY TUBE WITH IMPROVED SHADOW MASK CONTOUR
JPS59163737A (en) * 1983-02-25 1984-09-14 アールシーエー　トムソン　ライセンシング　コーポレイシヨン Cathode ray tube
JPH043619B2 (en) * 1983-02-25 1992-01-23
JPH0365611B2 (en) * 1983-03-09 1991-10-14
JPH0364981B2 (en) * 1983-03-09 1991-10-09
JPS59165350A (en) * 1983-03-09 1984-09-18 Toshiba Corp Cathode-ray tube
JPS59165349A (en) * 1983-03-09 1984-09-18 Toshiba Corp Cathode-ray tube
JPS59165348A (en) * 1983-03-09 1984-09-18 Toshiba Corp Cathode-ray tube
US4697119A (en) * 1985-01-11 1987-09-29 Kabushiki Kaisha Toshiba Color cathode ray tube having a non-spherical curved mask
JP2008132956A (en) * 2006-10-31 2008-06-12 Nippon Plast Co Ltd Table device and console box

Also Published As

Publication number Publication date
JPS6367309B2 (en) 1988-12-23

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