GB2237680B - A color cathode ray tube - Google Patents

A color cathode ray tube

Info

Publication number
GB2237680B
GB2237680B GB9021373A GB9021373A GB2237680B GB 2237680 B GB2237680 B GB 2237680B GB 9021373 A GB9021373 A GB 9021373A GB 9021373 A GB9021373 A GB 9021373A GB 2237680 B GB2237680 B GB 2237680B
Authority
GB
United Kingdom
Prior art keywords
ray tube
cathode ray
color cathode
color
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.)
Expired - Fee Related
Application number
GB9021373A
Other versions
GB2237680A (en
GB9021373D0 (en
Inventor
Noboru Tominaga
Katsuyo Iwasaki
Koichi Sugahara
Toshio Kuramoto
Kenji Uozumi
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
Publication of GB9021373D0 publication Critical patent/GB9021373D0/en
Publication of GB2237680A publication Critical patent/GB2237680A/en
Application granted granted Critical
Publication of GB2237680B publication Critical patent/GB2237680B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices
GB9021373A 1989-10-03 1990-10-02 A color cathode ray tube Expired - Fee Related GB2237680B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1259242A JP2945688B2 (en) 1989-10-03 1989-10-03 Color picture tube equipment

Publications (3)

Publication Number Publication Date
GB9021373D0 GB9021373D0 (en) 1990-11-14
GB2237680A GB2237680A (en) 1991-05-08
GB2237680B true GB2237680B (en) 1994-06-01

Family

ID=17331384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9021373A Expired - Fee Related GB2237680B (en) 1989-10-03 1990-10-02 A color cathode ray tube

Country Status (3)

Country Link
JP (1) JP2945688B2 (en)
CN (1) CN1018967B (en)
GB (1) GB2237680B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594600A (en) * 1968-12-30 1971-07-20 Sony Corp Convergence means for a plural beam color picture tube
US4625144A (en) * 1982-05-27 1986-11-25 International Standard Electric Corporation Color-picture tube with correction magnets in electron gun system for twist correction
EP0218961A1 (en) * 1985-09-27 1987-04-22 Hitachi, Ltd. Convergence correcting device capable of coma correction for use in a cathode ray tube having in-line electron guns
GB2202082A (en) * 1986-12-27 1988-09-14 Sony Corp Cathode ray tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594600A (en) * 1968-12-30 1971-07-20 Sony Corp Convergence means for a plural beam color picture tube
US4625144A (en) * 1982-05-27 1986-11-25 International Standard Electric Corporation Color-picture tube with correction magnets in electron gun system for twist correction
EP0218961A1 (en) * 1985-09-27 1987-04-22 Hitachi, Ltd. Convergence correcting device capable of coma correction for use in a cathode ray tube having in-line electron guns
GB2202082A (en) * 1986-12-27 1988-09-14 Sony Corp Cathode ray tubes

Also Published As

Publication number Publication date
GB2237680A (en) 1991-05-08
JP2945688B2 (en) 1999-09-06
CN1018967B (en) 1992-11-04
JPH03120987A (en) 1991-05-23
GB9021373D0 (en) 1990-11-14
CN1051640A (en) 1991-05-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041002