JPS5652839A - Aging method for picture tube - Google Patents

Aging method for picture tube

Info

Publication number
JPS5652839A
JPS5652839A JP12791079A JP12791079A JPS5652839A JP S5652839 A JPS5652839 A JP S5652839A JP 12791079 A JP12791079 A JP 12791079A JP 12791079 A JP12791079 A JP 12791079A JP S5652839 A JPS5652839 A JP S5652839A
Authority
JP
Japan
Prior art keywords
electron beam
picture tube
funnel
neck
joint
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
JP12791079A
Other languages
Japanese (ja)
Inventor
Koichi Nakajima
Yoshihiko Miyata
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 JP12791079A priority Critical patent/JPS5652839A/en
Publication of JPS5652839A publication Critical patent/JPS5652839A/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
    • H01J9/44—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

PURPOSE:To achieve good aging effect on a picture tube through quite simple means by mounting a field generating source at the outside near the joint between a funnel and neck thereby overconverging the electron beam and diverging widely toward a fluorescent face. CONSTITUTION:The electron beam 3 discharged from the cathode 11 of a picture tube 1 is converged by an electronic lens 12. By means of a field generating device 2 mounted at the outside near the joint between a funnel and a neck, the electron beam 3 is overconverged and projected toward the fluorescent face while diverging widely as shown by a dushed line. (When there is no field generator 2, the electron beam is collected to one point 13.) The field generator 2 has a combination of a permanent ring magnet 21 and yokes 22, 23 provided with foldings 221, 231 of the shape fitting to the outline of mounting section.
JP12791079A 1979-10-05 1979-10-05 Aging method for picture tube Pending JPS5652839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12791079A JPS5652839A (en) 1979-10-05 1979-10-05 Aging method for picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12791079A JPS5652839A (en) 1979-10-05 1979-10-05 Aging method for picture tube

Publications (1)

Publication Number Publication Date
JPS5652839A true JPS5652839A (en) 1981-05-12

Family

ID=14971669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12791079A Pending JPS5652839A (en) 1979-10-05 1979-10-05 Aging method for picture tube

Country Status (1)

Country Link
JP (1) JPS5652839A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206216A1 (en) * 1982-09-10 1986-12-30 Matsushita Electronics Corporation Cathode ray tube
EP0280371A2 (en) * 1987-02-27 1988-08-31 North American Philips Corporation Method of processing a cathode ray tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118309A (en) * 1974-06-24 1976-02-13 Siemens Ag Atsushukukio zenchisetsuzokushita ekitairingushinkuhonpu
JPS5199467A (en) * 1975-02-28 1976-09-02 Tokyo Shibaura Electric Co KARAAJUZOKANEEJINGUSOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118309A (en) * 1974-06-24 1976-02-13 Siemens Ag Atsushukukio zenchisetsuzokushita ekitairingushinkuhonpu
JPS5199467A (en) * 1975-02-28 1976-09-02 Tokyo Shibaura Electric Co KARAAJUZOKANEEJINGUSOCHI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206216A1 (en) * 1982-09-10 1986-12-30 Matsushita Electronics Corporation Cathode ray tube
EP0280371A2 (en) * 1987-02-27 1988-08-31 North American Philips Corporation Method of processing a cathode ray tube

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