CN1021172C - 阴极射线管显示装置 - Google Patents

阴极射线管显示装置 Download PDF

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Publication number
CN1021172C
CN1021172C CN88104372A CN88104372A CN1021172C CN 1021172 C CN1021172 C CN 1021172C CN 88104372 A CN88104372 A CN 88104372A CN 88104372 A CN88104372 A CN 88104372A CN 1021172 C CN1021172 C CN 1021172C
Authority
CN
China
Prior art keywords
coil
magnetic field
ring
curve
screen
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 - Lifetime
Application number
CN88104372A
Other languages
English (en)
Chinese (zh)
Other versions
CN1031297A (zh
Inventor
约瑟夫·弗朗希斯·赫维斯
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CN1031297A publication Critical patent/CN1031297A/zh
Application granted granted Critical
Publication of CN1021172C publication Critical patent/CN1021172C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0015—Preventing or cancelling fields leaving the enclosure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Soft Magnetic Materials (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Details Of Television Scanning (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
CN88104372A 1987-08-13 1988-07-12 阴极射线管显示装置 Expired - Lifetime CN1021172C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8494987A 1987-08-13 1987-08-13
US07/084949 1987-08-13

Publications (2)

Publication Number Publication Date
CN1031297A CN1031297A (zh) 1989-02-22
CN1021172C true CN1021172C (zh) 1993-06-09

Family

ID=22188219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN88104372A Expired - Lifetime CN1021172C (zh) 1987-08-13 1988-07-12 阴极射线管显示装置

Country Status (14)

Country Link
EP (1) EP0302995B1 (ko)
JP (1) JP2645572B2 (ko)
KR (1) KR930000388B1 (ko)
CN (1) CN1021172C (ko)
AU (1) AU600158B2 (ko)
BR (1) BR8802943A (ko)
CA (1) CA1306281C (ko)
DE (1) DE3889997T2 (ko)
GB (1) GB2208034A (ko)
HK (1) HK119794A (ko)
IE (1) IE63796B1 (ko)
IN (1) IN175123B (ko)
MX (1) MX169727B (ko)
NZ (1) NZ225468A (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY107095A (en) * 1989-03-13 1995-09-30 Ibm Magnetic shunt for defletion yokes.
CN1040934C (zh) * 1991-07-18 1998-11-25 东芝株式会社 阴极射线管图像显示装置
KR950011706B1 (ko) * 1992-11-10 1995-10-07 삼성전관주식회사 투사형 수상관용 편향요크 및 포커스 마그네트의 고정구조

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB743426A (en) * 1953-04-29 1956-01-18 Gen Electric Co Ltd Improvements in or relating to arrangements including cathode ray tubes
NL262281A (ko) * 1960-03-17
US3576395A (en) * 1969-05-21 1971-04-27 Sylvania Electric Prod Integral support and magentic shielding means for cathode-ray
JPS50114230U (ko) * 1974-02-28 1975-09-18
NL7609374A (nl) * 1976-08-24 1978-02-28 Philips Nv Inrichting voor het weergeven van televisie- beelden, afbuigspoelenstelsel voor een derge- lijke inrichting en beeldbuis voorzien van een dergelijk afbuigspoelenstelsel.
DE3162156D1 (en) * 1980-04-17 1984-03-15 Tokyo Shibaura Electric Co Color picture tube provided with an inner magnetic shield
US4547697A (en) * 1983-07-22 1985-10-15 North American Philips Consumer Electronics Corp. CRT Shunt retaining means
JPS60253135A (ja) * 1984-05-28 1985-12-13 Mitsubishi Electric Corp デイスプレイ装置
JPS60189947U (ja) * 1984-05-28 1985-12-16 三菱電機株式会社 電磁偏向ヨ−ク
DK29385A (da) * 1984-10-09 1986-04-10 Viggo Berthelsen Fremgangsmaade og indretning til eliminering af paavirkningen fra et magnetfelt og til beskyttelse mod samme
DE3439808A1 (de) * 1984-10-31 1986-04-30 Standard Elektrik Lorenz Ag, 7000 Stuttgart Ablenksystem fuer farbbildroehren
US4943755A (en) * 1985-05-20 1990-07-24 Mitsubishi Denki Kabushiki Kaisha Magnetic shielding with constant-current coils for CRT
NL8602397A (nl) * 1985-10-25 1987-05-18 Philips Nv Beeldweergeefinrichting met ontstoringsmiddelen.
DE3704648C3 (de) * 1986-02-17 1997-09-18 Murata Manufacturing Co Ablenkjocheinheit mit Hilfsspulen zur Verringerung unerwünschter Abstrahlung
JP2611196B2 (ja) * 1986-02-20 1997-05-21 日本ビクター株式会社 Ｃｒｔ画像表示装置

Also Published As

Publication number Publication date
GB8807138D0 (en) 1988-04-27
EP0302995A1 (en) 1989-02-15
KR890004381A (ko) 1989-04-21
DE3889997D1 (de) 1994-07-14
IN175123B (ko) 1995-04-22
BR8802943A (pt) 1989-02-21
KR930000388B1 (ko) 1993-01-16
AU2055588A (en) 1989-02-16
IE63796B1 (en) 1995-06-14
CA1306281C (en) 1992-08-11
GB2208034A (en) 1989-02-15
EP0302995B1 (en) 1994-06-08
JPS6445046A (en) 1989-02-17
DE3889997T2 (de) 1994-12-01
AU600158B2 (en) 1990-08-02
JP2645572B2 (ja) 1997-08-25
HK119794A (en) 1994-11-11
CN1031297A (zh) 1989-02-22
IE882459L (en) 1989-02-13
NZ225468A (en) 1990-11-27
MX169727B (es) 1993-07-21

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SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
C17 Cessation of patent right
CX01 Expiry of patent term