JPS5652854A - Electrostatic focusing type image receiving tube and its manufacturing method - Google Patents

Electrostatic focusing type image receiving tube and its manufacturing method

Info

Publication number
JPS5652854A
JPS5652854A JP12869279A JP12869279A JPS5652854A JP S5652854 A JPS5652854 A JP S5652854A JP 12869279 A JP12869279 A JP 12869279A JP 12869279 A JP12869279 A JP 12869279A JP S5652854 A JPS5652854 A JP S5652854A
Authority
JP
Japan
Prior art keywords
magnet
bent
electrode
focusing electrode
manufacturing
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
JP12869279A
Other languages
Japanese (ja)
Other versions
JPS5838907B2 (en
Inventor
Shigeya Ashizaki
Arinobu Suzuki
Masamichi Kimura
Nozomi Arimoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP12869279A priority Critical patent/JPS5838907B2/en
Publication of JPS5652854A publication Critical patent/JPS5652854A/en
Publication of JPS5838907B2 publication Critical patent/JPS5838907B2/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE:To reduce the influence of the leakage field of a magnet by providing a magnetic shielding board around a magnet for in-tube ion trap located at the bent of focusing electrode of a bent gun. CONSTITUTION:An electron gun 3 comprising a cathode 4, a control grid electrode 5, an acceleration electrode 6, a bent focusing electrode 7 and an anode is inserted into a neck 2 of a glass bulb 1. On the other hand the bent 7' of the focusing electrode 7 is flexed to locate a ring-shaped ion trap magent 21. Moreover magnetic shielding boards 22, 23 composed of pure ion are provided while facing against both faces of said magnet 21, to prevent the leakage flux of said magnet 21 from entering into the side of main lens or prefocus lens. Consequently the electron beam can be prevented from being subjected to unnecessary deflection.
JP12869279A 1979-10-04 1979-10-04 Electrostatic focusing picture tube and its manufacturing method Expired JPS5838907B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12869279A JPS5838907B2 (en) 1979-10-04 1979-10-04 Electrostatic focusing picture tube and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12869279A JPS5838907B2 (en) 1979-10-04 1979-10-04 Electrostatic focusing picture tube and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS5652854A true JPS5652854A (en) 1981-05-12
JPS5838907B2 JPS5838907B2 (en) 1983-08-26

Family

ID=14991053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12869279A Expired JPS5838907B2 (en) 1979-10-04 1979-10-04 Electrostatic focusing picture tube and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS5838907B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10103409B2 (en) 2013-12-18 2018-10-16 Gs Yuasa International Ltd. Lead-acid battery, manufacturing method of the same, and lid member for lead-acid battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10103409B2 (en) 2013-12-18 2018-10-16 Gs Yuasa International Ltd. Lead-acid battery, manufacturing method of the same, and lid member for lead-acid battery

Also Published As

Publication number Publication date
JPS5838907B2 (en) 1983-08-26

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