JPS56106349A - Color picture tube - Google Patents

Color picture tube

Info

Publication number
JPS56106349A
JPS56106349A JP781980A JP781980A JPS56106349A JP S56106349 A JPS56106349 A JP S56106349A JP 781980 A JP781980 A JP 781980A JP 781980 A JP781980 A JP 781980A JP S56106349 A JPS56106349 A JP S56106349A
Authority
JP
Japan
Prior art keywords
pin
panel
panel pin
conical trapezoid
ceramic
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
JP781980A
Other languages
Japanese (ja)
Inventor
Koichi Mitobe
Shiro Koike
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP781980A priority Critical patent/JPS56106349A/en
Publication of JPS56106349A publication Critical patent/JPS56106349A/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To prevent a ceramic pin from being cracked by making the shape of a panel pin form a small tapered conical trapezoid at the lower part near the inner surface of the panel skirt and a large tapered conical trapezoid or a hemisphere in its continuous tin side. CONSTITUTION:Trace L drawn when a mask is removed changes the shape of the upper half part of a panel pin so that the end of a mask spring may not collide with that of the panel pin. This permits a ceramic panel pin to be formed into a compound shape consisting of small tapered lower conical trapezoid B and large tapered upper conical trapezoid T1 or upper hemisphere T2. As a result, the mask spring can fully prevent the pin from being cracked without colliding with the panel pin end and improve the yield of a picture tube which uses the ceramic panel pin.
JP781980A 1980-01-28 1980-01-28 Color picture tube Pending JPS56106349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP781980A JPS56106349A (en) 1980-01-28 1980-01-28 Color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP781980A JPS56106349A (en) 1980-01-28 1980-01-28 Color picture tube

Publications (1)

Publication Number Publication Date
JPS56106349A true JPS56106349A (en) 1981-08-24

Family

ID=11676191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP781980A Pending JPS56106349A (en) 1980-01-28 1980-01-28 Color picture tube

Country Status (1)

Country Link
JP (1) JPS56106349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214348A (en) * 1990-11-19 1993-05-25 Mitsubishi Denki Kabushiki Kaisha Color crt with insulating stud pins for shadow mask support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214348A (en) * 1990-11-19 1993-05-25 Mitsubishi Denki Kabushiki Kaisha Color crt with insulating stud pins for shadow mask support

Similar Documents

Publication Publication Date Title
JPS56106349A (en) Color picture tube
JPS52134368A (en) Manufacture for color receivers
JPS53123654A (en) Production of color picture tube
JPS52134370A (en) Manufacture for brown tubes
JPS53142124A (en) Color pickup element
JPS54144817A (en) Pick up tube
JPS5478980A (en) Anisotropic etching method
JPS533842A (en) Liquid crystalline color indication element
JPS6421848A (en) Shadow-mask type color picture tube
JPS5412687A (en) Photo coupler
JPS5361265A (en) Metal coating of color cathode-ray tube fluorescent screen
GB599241A (en) Improvements in trowels
JPS5267515A (en) Face plate manufacturing method
JPS5449062A (en) Color picture tube
JPS569251A (en) Manufacture of cathode-ray tube
JPS5792743A (en) Color image receiving tube
JPS53145555A (en) Peripheral unit for cathode ray tube
JPS53148035A (en) Double combustion furnace
JPS55130417A (en) Matching method of frame and surface member of construction panel
JPS57180846A (en) Manufacture of color picture tube and device for manufacture
JPS53127268A (en) Size selection method
GB531629A (en) Improved means for washing smoke in chimney shafts
JPS51151952A (en) Method of delivering a synthetic rubber veil
JPS51146167A (en) Fluorescent reflection surface formation method
JPS5795404A (en) Formation of stepped wall provided with through hole