EP0275191A3 - Color cathode-ray tube having a three-lens electron gun - Google Patents

Color cathode-ray tube having a three-lens electron gun Download PDF

Info

Publication number
EP0275191A3
EP0275191A3 EP88300247A EP88300247A EP0275191A3 EP 0275191 A3 EP0275191 A3 EP 0275191A3 EP 88300247 A EP88300247 A EP 88300247A EP 88300247 A EP88300247 A EP 88300247A EP 0275191 A3 EP0275191 A3 EP 0275191A3
Authority
EP
European Patent Office
Prior art keywords
ray tube
electron gun
color cathode
lens electron
lens
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
EP88300247A
Other versions
EP0275191A2 (en
EP0275191B1 (en
Inventor
David Arthur New
Loren Lee Maninger
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 Licensing Corp
Original Assignee
RCA Licensing 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
Priority claimed from GB878700792A external-priority patent/GB8700792D0/en
Priority claimed from GB878700793A external-priority patent/GB8700793D0/en
Priority claimed from US07/128,951 external-priority patent/US4764704A/en
Application filed by RCA Licensing Corp filed Critical RCA Licensing Corp
Publication of EP0275191A2 publication Critical patent/EP0275191A2/en
Publication of EP0275191A3 publication Critical patent/EP0275191A3/en
Application granted granted Critical
Publication of EP0275191B1 publication Critical patent/EP0275191B1/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
    • 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
    • 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
EP88300247A 1987-01-14 1988-01-13 Color cathode-ray tube having a three-lens electron gun Expired - Lifetime EP0275191B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB878700792A GB8700792D0 (en) 1987-01-14 1987-01-14 Qpf-xl gun design
GB8700792 1987-01-14
GB8700793 1987-01-14
GB878700793A GB8700793D0 (en) 1987-01-14 1987-01-14 Db-xl gun design
US128951 1987-12-04
US07/128,951 US4764704A (en) 1987-01-14 1987-12-04 Color cathode-ray tube having a three-lens electron gun

Publications (3)

Publication Number Publication Date
EP0275191A2 EP0275191A2 (en) 1988-07-20
EP0275191A3 true EP0275191A3 (en) 1989-06-07
EP0275191B1 EP0275191B1 (en) 1995-09-27

Family

ID=27263286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88300247A Expired - Lifetime EP0275191B1 (en) 1987-01-14 1988-01-13 Color cathode-ray tube having a three-lens electron gun

Country Status (3)

Country Link
EP (1) EP0275191B1 (en)
JP (1) JPH0748354B2 (en)
DE (1) DE3854506T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877998A (en) * 1988-10-27 1989-10-31 Rca Licensing Corp. Color display system having an electron gun with dual electrode modulation
CA2039501C (en) * 1990-04-16 1999-02-02 Loren Lee Maninger Color picture tube having inline electron gun with focus adjustement means
JP3576217B2 (en) * 1993-09-30 2004-10-13 株式会社東芝 Picture tube device
KR100386182B1 (en) * 1994-10-24 2004-02-25 소니 가부시끼 가이샤 Electron gun of cathode ray tube and manufacturing method of cathode ray tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884559A (en) * 1956-09-07 1959-04-28 Bell Telephone Labor Inc Electron lens systems
EP0104674A1 (en) * 1982-08-25 1984-04-04 Koninklijke Philips Electronics N.V. Colour display tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54120581A (en) * 1978-03-13 1979-09-19 Toshiba Corp Electron gun for color picture tube of in-line type
US4620133A (en) * 1982-01-29 1986-10-28 Rca Corporation Color image display systems
JPS598246A (en) * 1982-07-05 1984-01-17 Toshiba Corp Electron gun
NL8600117A (en) * 1986-01-21 1987-08-17 Philips Nv COLOR IMAGE TUBE WITH REDUCED DEFLECTION DEFOCUSING.
JPS63158732A (en) * 1986-12-22 1988-07-01 Toshiba Corp Color cathode-ray tube device
JPH06174246A (en) * 1991-03-29 1994-06-24 Matsushita Seiko Co Ltd Air curtain device for air conditioner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884559A (en) * 1956-09-07 1959-04-28 Bell Telephone Labor Inc Electron lens systems
EP0104674A1 (en) * 1982-08-25 1984-04-04 Koninklijke Philips Electronics N.V. Colour display tube

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 3, no. 141 (E-153), 21st November 1979, page 151 E 153; & JP-A-54 120 581 (TOKYO SHIBAURA DENKI K.K.) 19-09-1979 *
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 88, 21st April 1984, page 74 E 240; & JP-A-59 008 246 (TOKYO SHIBAURA DENKI K.K.) 17-01-1984 *

Also Published As

Publication number Publication date
EP0275191A2 (en) 1988-07-20
DE3854506T2 (en) 1996-04-04
JPH0748354B2 (en) 1995-05-24
DE3854506D1 (en) 1995-11-02
EP0275191B1 (en) 1995-09-27
JPS63198241A (en) 1988-08-16

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