JPS569938A - Dust remover for cathode-ray tube - Google Patents

Dust remover for cathode-ray tube

Info

Publication number
JPS569938A
JPS569938A JP8569379A JP8569379A JPS569938A JP S569938 A JPS569938 A JP S569938A JP 8569379 A JP8569379 A JP 8569379A JP 8569379 A JP8569379 A JP 8569379A JP S569938 A JPS569938 A JP S569938A
Authority
JP
Japan
Prior art keywords
neck part
wall
side wall
cathode
ray tube
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
JP8569379A
Other languages
Japanese (ja)
Inventor
Wataru Imanishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8569379A priority Critical patent/JPS569938A/en
Publication of JPS569938A publication Critical patent/JPS569938A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2209/00—Apparatus and processes for manufacture of discharge tubes
    • H01J2209/38—Control of maintenance of pressure in the vessel
    • H01J2209/389—Degassing
    • H01J2209/3893—Degassing by a discharge

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To keep the inner wall face of a neck part of a tube at low potential and effectively remove its dust, by covering a tubular body of conductive wire on the neck part. CONSTITUTION:A tubular body 21 constructed by a conductive material is covered on a neck part 18, connected to a cathode 12 by a lead wire 22 through stem lead wires 11 and kept at the earth potential. The inner wall of the neck part 18 is kept also near at the earth potential. Accordingly, a high voltage is applied across the side wall face of an anode 9 and the inner wall of the neck part 18 and the side wall face of the fourth grid 10 and the inner wall of the neck part 18. This high voltage is set to a level 1-3 times the voltage applied in a TV receiver, and the dust which has adhered to the inner wall of a neck part 16 or the side wall of the fourth grid 10 and the side wall of the anode 9 is forcibly discharged and removed.
JP8569379A 1979-07-03 1979-07-03 Dust remover for cathode-ray tube Pending JPS569938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8569379A JPS569938A (en) 1979-07-03 1979-07-03 Dust remover for cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8569379A JPS569938A (en) 1979-07-03 1979-07-03 Dust remover for cathode-ray tube

Publications (1)

Publication Number Publication Date
JPS569938A true JPS569938A (en) 1981-01-31

Family

ID=13865907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8569379A Pending JPS569938A (en) 1979-07-03 1979-07-03 Dust remover for cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS569938A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271326A (en) * 1985-05-25 1986-12-01 Matsushita Electric Works Ltd Production of addition-type imide resin prepolymer
JPS6241262A (en) * 1985-08-15 1987-02-23 Matsushita Electric Works Ltd Addition type imide resin prepolymer composition
JPS62143931A (en) * 1985-12-19 1987-06-27 Matsushita Electric Works Ltd Addition type imide resin prepolymer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249762A (en) * 1975-10-17 1977-04-21 Nippon Electric Glass Co Ltd Dag edge conditioning method
JPS6245660A (en) * 1985-08-26 1987-02-27 Polyplastics Co Composite material composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249762A (en) * 1975-10-17 1977-04-21 Nippon Electric Glass Co Ltd Dag edge conditioning method
JPS6245660A (en) * 1985-08-26 1987-02-27 Polyplastics Co Composite material composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271326A (en) * 1985-05-25 1986-12-01 Matsushita Electric Works Ltd Production of addition-type imide resin prepolymer
JPS6241262A (en) * 1985-08-15 1987-02-23 Matsushita Electric Works Ltd Addition type imide resin prepolymer composition
JPH0359106B2 (en) * 1985-08-15 1991-09-09 Matsushita Electric Works Ltd
JPS62143931A (en) * 1985-12-19 1987-06-27 Matsushita Electric Works Ltd Addition type imide resin prepolymer

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