ES398203A1 - High voltage processing of cathode ray tubes - Google Patents

High voltage processing of cathode ray tubes

Info

Publication number
ES398203A1
ES398203A1 ES398203A ES398203A ES398203A1 ES 398203 A1 ES398203 A1 ES 398203A1 ES 398203 A ES398203 A ES 398203A ES 398203 A ES398203 A ES 398203A ES 398203 A1 ES398203 A1 ES 398203A1
Authority
ES
Spain
Prior art keywords
tube
high voltage
cathode ray
ray tubes
voltage processing
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.)
Expired
Application number
ES398203A
Other languages
Spanish (es)
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of ES398203A1 publication Critical patent/ES398203A1/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/484—Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission
    • 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
    • H01J9/44—Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances
    • 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
    • H01J9/44—Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances
    • H01J9/445—Aging of tubes or lamps, e.g. by "spot knocking"

Abstract

A method of treating a cathode ray tube transported along a given path, by applying operating voltages respectively to the tube's electron gun electrodes, and applying a high voltage to the gun's final accelerator electrode, whereby Electrons from the barrel cathode are directed toward the tube screen, characterized by passing the tube through a magnetic field while operating voltages are applied to the barrel electrodes to continuously deflect the directed electrons toward the screen. (Machine-translation by Google Translate, not legally binding)
ES398203A 1970-12-28 1971-12-21 High voltage processing of cathode ray tubes Expired ES398203A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10179470A 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
ES398203A1 true ES398203A1 (en) 1975-03-16

Family

ID=22286446

Family Applications (1)

Application Number Title Priority Date Filing Date
ES398203A Expired ES398203A1 (en) 1970-12-28 1971-12-21 High voltage processing of cathode ray tubes

Country Status (11)

Country Link
US (1) US3698786A (en)
JP (1) JPS5118309B1 (en)
AU (1) AU475625B2 (en)
BE (1) BE777415A (en)
CA (1) CA939738A (en)
DE (1) DE2164232C3 (en)
ES (1) ES398203A1 (en)
FR (1) FR2120846A5 (en)
GB (1) GB1352240A (en)
IT (1) IT940466B (en)
NL (1) NL7113773A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966287A (en) * 1975-06-27 1976-06-29 Rca Corporation Low-voltage aging of cathode-ray tubes
US4052776A (en) * 1976-09-30 1977-10-11 Zenith Radio Corporation Method of spot-knocking an electron gun assembly in a color television picture tube
FR2412161A1 (en) * 1977-12-19 1979-07-13 Rca Corp HV treatment of CRT - with end of tube collar connected into socket immersed in liq. dielectric and with HV applied to socket
JPS56161787A (en) * 1980-05-16 1981-12-12 Hitachi Ltd Manufacture for cathode ray tube
US4392834A (en) * 1981-05-21 1983-07-12 Rca Corporation Method for aging a cathode of a cathode-ray tube
JPS59143239A (en) * 1983-02-03 1984-08-16 Mitsubishi Electric Corp Method for manufacturing cathode ray tube
US4940439A (en) * 1987-12-25 1990-07-10 Hitachi, Ltd. Method of and apparatus for manufacturing Braun tubes
US4820223A (en) * 1988-06-02 1989-04-11 Rca Licensing Corp. System and method for monitoring spot-knocking of CRTs
JP2822480B2 (en) * 1989-09-14 1998-11-11 ソニー株式会社 Method and apparatus for manufacturing cathode ray tube
KR100238054B1 (en) * 1997-07-04 2000-01-15 윤종용 Method and apparatus for automatic signal supply of an image display device

Also Published As

Publication number Publication date
JPS5118309B1 (en) 1976-06-09
DE2164232C3 (en) 1974-11-21
US3698786A (en) 1972-10-17
DE2164232A1 (en) 1972-07-13
IT940466B (en) 1973-02-10
BE777415A (en) 1972-04-17
AU475625B2 (en) 1976-08-26
AU3699071A (en) 1973-06-21
FR2120846A5 (en) 1972-08-18
DE2164232B2 (en) 1974-04-25
CA939738A (en) 1974-01-08
GB1352240A (en) 1974-05-08
NL7113773A (en) 1972-06-30

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