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EP0452789A3 - Color picture tube having inline electron gun with focus adjustment means - Google Patents

Color picture tube having inline electron gun with focus adjustment means Download PDF

Info

Publication number
EP0452789A3
EP0452789A3 EP19910105658 EP91105658A EP0452789A3 EP 0452789 A3 EP0452789 A3 EP 0452789A3 EP 19910105658 EP19910105658 EP 19910105658 EP 91105658 A EP91105658 A EP 91105658A EP 0452789 A3 EP0452789 A3 EP 0452789A3
Authority
EP
European Patent Office
Prior art keywords
electron gun
adjustment means
focus adjustment
picture tube
color picture
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.)
Granted
Application number
EP19910105658
Other versions
EP0452789B1 (en
EP0452789A2 (en
Inventor
Loren Lee Maninger
Bruce George Marks
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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 Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Publication of EP0452789A2 publication Critical patent/EP0452789A2/en
Publication of EP0452789A3 publication Critical patent/EP0452789A3/en
Application granted granted Critical
Publication of EP0452789B1 publication Critical patent/EP0452789B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • 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
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H01J29/503—Three or more guns, the axes of which lay in a common plane
    • 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4844—Electron guns characterised by beam passing apertures or combinations
    • H01J2229/4848—Aperture shape as viewed along beam axis
    • H01J2229/4872—Aperture shape as viewed along beam axis circular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4844—Electron guns characterised by beam passing apertures or combinations
    • H01J2229/4848—Aperture shape as viewed along beam axis
    • H01J2229/4896—Aperture shape as viewed along beam axis complex and not provided for
EP91105658A 1990-04-16 1991-04-10 Color picture tube having inline electron gun with focus adjustment means Expired - Lifetime EP0452789B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50953790A 1990-04-16 1990-04-16
US509537 1990-04-16

Publications (3)

Publication Number Publication Date
EP0452789A2 EP0452789A2 (en) 1991-10-23
EP0452789A3 true EP0452789A3 (en) 1992-02-12
EP0452789B1 EP0452789B1 (en) 1995-11-29

Family

ID=24027042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105658A Expired - Lifetime EP0452789B1 (en) 1990-04-16 1991-04-10 Color picture tube having inline electron gun with focus adjustment means

Country Status (10)

Country Link
EP (1) EP0452789B1 (en)
JP (1) JP2616849B2 (en)
KR (1) KR950002262B1 (en)
CN (1) CN1041577C (en)
CA (1) CA2039501C (en)
DE (1) DE69114893T2 (en)
MY (1) MY105411A (en)
PL (1) PL165538B1 (en)
RU (1) RU2025818C1 (en)
TR (1) TR25229A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06251722A (en) * 1993-02-24 1994-09-09 Hitachi Ltd Cathode-ray tube
FR2705164B1 (en) * 1993-05-10 1995-07-13 Thomson Tubes & Displays Color image tube with electron guns in line with astigmatic lenses.
CN1054462C (en) * 1994-06-30 2000-07-12 中华映管股份有限公司 electron gun for color picture tube
JP3726402B2 (en) * 1996-07-05 2005-12-14 ソニー株式会社 In-line electron gun for color cathode ray tube
KR19980040898A (en) * 1996-11-30 1998-08-17 엄길용 Cylindrical electrode of in-line electron gun
KR20030060616A (en) * 2002-01-10 2003-07-16 엘지.필립스디스플레이(주) Gun for Color CRT
CN1306544C (en) * 2004-01-05 2007-03-21 彩虹集团电子股份有限公司 Technological method for regulating clour teletron electron beam arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2101805A (en) * 1981-07-10 1983-01-19 Rca Corp Color picture tube and inline electron gun
EP0104674A1 (en) * 1982-08-25 1984-04-04 Koninklijke Philips Electronics N.V. Colour display tube
EP0275191A2 (en) * 1987-01-14 1988-07-20 RCA Thomson Licensing Corporation Color cathode-ray tube having a three-lens electron gun

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400649A (en) * 1981-07-10 1983-08-23 Rca Corporation Color picture tube having an improved expanded focus lens type inline electron gun
JPS58198830A (en) * 1982-05-14 1983-11-18 Hitachi Ltd Cathode-ray tube
JPH0630227B2 (en) * 1983-12-28 1994-04-20 株式会社東芝 Color picture tube electron gun
FR2590724B1 (en) * 1985-11-22 1988-01-08 Videocolor DEVICE FOR CORRECTING THE DEVIATION EFFECT DUE TO A VARIATION OF THE FOCUSING VOLTAGE IN A TRICHROME CATHODE TUBE WITH ONLINE CATHODES
US4764704A (en) * 1987-01-14 1988-08-16 Rca Licensing Corporation Color cathode-ray tube having a three-lens electron gun
CN1013534B (en) * 1987-04-08 1991-08-14 彩色图象公司 Correction device for offset effect of three-color cathode ray tube
US4737682A (en) * 1987-07-20 1988-04-12 Rca Corporation Color picture tube having an inline electron gun with an einzel lens
JP2690930B2 (en) * 1988-02-26 1997-12-17 株式会社日立製作所 Electron gun for color cathode ray tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2101805A (en) * 1981-07-10 1983-01-19 Rca Corp Color picture tube and inline electron gun
EP0104674A1 (en) * 1982-08-25 1984-04-04 Koninklijke Philips Electronics N.V. Colour display tube
EP0275191A2 (en) * 1987-01-14 1988-07-20 RCA Thomson Licensing Corporation Color cathode-ray tube having a three-lens electron gun

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 44 (E-229)[1481] 25 February 1984; & JP-A-58 198 830 (HITACHI SEISAKUSHO K.K.) 18 November 1983 *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 302 (E-362)[2025] 29 November 1985; & JP-A-60 140 637 (TOSHIBA K.K.) 25 July 1985 *

Also Published As

Publication number Publication date
KR950002262B1 (en) 1995-03-15
DE69114893T2 (en) 1996-06-20
MY105411A (en) 1994-09-30
EP0452789B1 (en) 1995-11-29
JP2616849B2 (en) 1997-06-04
CN1056016A (en) 1991-11-06
JPH04230938A (en) 1992-08-19
CA2039501C (en) 1999-02-02
DE69114893D1 (en) 1996-01-11
EP0452789A2 (en) 1991-10-23
KR910019103A (en) 1991-11-30
PL165538B1 (en) 1995-01-31
RU2025818C1 (en) 1994-12-30
TR25229A (en) 1993-01-01
PL289904A1 (en) 1992-02-10
CN1041577C (en) 1999-01-06
CA2039501A1 (en) 1991-10-17

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