SG46297A1 - Color picture tube having an inline electron gun with an astigmatic prefocusing lens - Google Patents

Color picture tube having an inline electron gun with an astigmatic prefocusing lens

Info

Publication number
SG46297A1
SG46297A1 SG1996002320A SG1996002320A SG46297A1 SG 46297 A1 SG46297 A1 SG 46297A1 SG 1996002320 A SG1996002320 A SG 1996002320A SG 1996002320 A SG1996002320 A SG 1996002320A SG 46297 A1 SG46297 A1 SG 46297A1
Authority
SG
Singapore
Prior art keywords
astigmatic
electron gun
picture tube
color picture
inline electron
Prior art date
Application number
SG1996002320A
Other languages
English (en)
Inventor
David Arthur New
Original Assignee
Rca Thomson 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
Application filed by Rca Thomson Licensing Corp filed Critical Rca Thomson Licensing Corp
Publication of SG46297A1 publication Critical patent/SG46297A1/en

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
    • H01J29/58—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
    • 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
    • H01J2229/4858—Aperture shape as viewed along beam axis parallelogram
    • 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
SG1996002320A 1990-02-22 1991-02-21 Color picture tube having an inline electron gun with an astigmatic prefocusing lens SG46297A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/483,487 US5066887A (en) 1990-02-22 1990-02-22 Color picture tube having an inline electron gun with an astigmatic prefocusing lens

Publications (1)

Publication Number Publication Date
SG46297A1 true SG46297A1 (en) 1998-02-20

Family

ID=23920245

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996002320A SG46297A1 (en) 1990-02-22 1991-02-21 Color picture tube having an inline electron gun with an astigmatic prefocusing lens

Country Status (10)

Country Link
US (1) US5066887A (fr)
EP (1) EP0443582B1 (fr)
JP (1) JP2616844B2 (fr)
KR (2) KR920000097A (fr)
CN (1) CN1023045C (fr)
CA (1) CA2036857C (fr)
CZ (1) CZ279913B6 (fr)
DE (1) DE69123375T2 (fr)
PL (1) PL165779B1 (fr)
SG (1) SG46297A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027043A (en) * 1989-08-11 1991-06-25 Zenith Electronics Corporation Electron gun system with dynamic convergence control
FR2682809B1 (fr) * 1991-10-21 1993-12-31 Thomson Tubes Displays Sa Tube a rayons cathodiques a canon a electrons ameliore.
US5223764A (en) * 1991-12-09 1993-06-29 Chunghwa Picture Tubes, Ltd. Electron gun with low voltage limiting aperture main lens
US5159240A (en) * 1991-12-09 1992-10-27 Chunghwa Picture Tubes, Ltd. Low voltage limiting aperture electron gun
DE4233955A1 (de) * 1992-05-19 1993-11-25 Samsung Electronic Devices Elektronenkanone für eine Farbkathodenstrahlröhre
US5182492A (en) * 1992-05-20 1993-01-26 Chunghwa Picture Tubes, Ltd. Electron beam shaping aperture in low voltage, field-free region of electron gun
FR2705164B1 (fr) * 1993-05-10 1995-07-13 Thomson Tubes & Displays Tube image couleurs à canons à électrons en ligne avec lentilles astigmatiques.
JPH0729511A (ja) * 1993-07-14 1995-01-31 Hitachi Ltd 電子銃およびカラー陰極線管
US5412277A (en) * 1993-08-25 1995-05-02 Chunghwa Picture Tubes, Ltd. Dynamic off-axis defocusing correction for deflection lens CRT
US5600201A (en) * 1993-10-22 1997-02-04 Samsung Display Devices Co., Ltd. Electron gun for a color cathode ray tube
EP0663681A1 (fr) * 1994-01-10 1995-07-19 Hitachi, Ltd. Tube à rayons cathodiques et méthode de compensation de l'aberration de déflection
KR970008566B1 (ko) * 1994-07-07 1997-05-27 엘지전자 주식회사 칼라 음극선관용 전자총의 제2그리드
JPH0831332A (ja) * 1994-07-13 1996-02-02 Hitachi Ltd カラー陰極線管
KR100189611B1 (ko) * 1995-07-28 1999-06-01 구자홍 칼라음극선관용 전자총
TW306009B (fr) * 1995-09-05 1997-05-21 Matsushita Electron Co Ltd
KR100186540B1 (ko) 1996-04-25 1999-03-20 구자홍 피디피의 전극 및 그 형성방법
KR100357172B1 (ko) * 2000-12-23 2002-10-19 엘지전자주식회사 컬러 음극선관용 전자총
US6703783B2 (en) 2002-04-19 2004-03-09 Thomson Licensing S.A. Focus voltage control arrangement
US6646393B1 (en) * 2002-06-27 2003-11-11 Thomson Licensing S. A. Method of operating a positive tolerance CRT

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152668U (fr) * 1974-10-18 1976-04-21
US4234814A (en) * 1978-09-25 1980-11-18 Rca Corporation Electron gun with astigmatic flare-reducing beam forming region
US4319163A (en) * 1980-06-30 1982-03-09 Rca Corporation Electron gun with deflection-synchronized astigmatic screen grid means
US4370592A (en) * 1980-10-29 1983-01-25 Rca Corporation Color picture tube having an improved inline electron gun with an expanded focus lens
US4388552A (en) * 1981-07-10 1983-06-14 Rca Corporation Color picture tube having an improved expanded focus lens type inline electron gun
US4429252A (en) * 1982-02-11 1984-01-31 Rca Corporation Color picture tube having an expanded focus lens type inline electron gun with improved static convergence
JPS58209039A (ja) * 1982-05-28 1983-12-05 Hitachi Ltd カラーブラウン管
US4520292A (en) * 1983-05-06 1985-05-28 Rca Corporation Cathode-ray tube having an asymmetric slot formed in a screen grid electrode of an inline electron gun
US4528476A (en) * 1983-10-24 1985-07-09 Rca Corporation Cathode-ray tube having electron gun with three focus lenses
US4608515A (en) * 1985-04-30 1986-08-26 Rca Corporation Cathode-ray tube having a screen grid with asymmetric beam focusing means and refraction lens means formed therein
US4631058A (en) * 1985-06-24 1986-12-23 Burron Medical, Inc. Guard for right angle winged infusion needle
NL8600117A (nl) * 1986-01-21 1987-08-17 Philips Nv Kleurenbeeldbuis met verminderde deflectie defocussering.
JPH0640469B2 (ja) * 1986-02-19 1994-05-25 株式会社日立製作所 カラ−受像管用電子銃
US4731563A (en) * 1986-09-29 1988-03-15 Rca Corporation Color display system
US4764704A (en) * 1987-01-14 1988-08-16 Rca Licensing Corporation Color cathode-ray tube having a three-lens electron gun
US4742266A (en) * 1987-07-20 1988-05-03 Rca Corporation Color picture tube having an inline electron gun with an einzel lens
GB2208564A (en) * 1987-07-29 1989-04-05 Philips Nv Colour cathode ray tube having an in-line electron gun
JP2644809B2 (ja) * 1988-03-16 1997-08-25 株式会社日立製作所 カラー受像管用電子銃構体
US4877998A (en) * 1988-10-27 1989-10-31 Rca Licensing Corp. Color display system having an electron gun with dual electrode modulation
US5061881A (en) * 1989-09-04 1991-10-29 Matsushita Electronics Corporation In-line electron gun

Also Published As

Publication number Publication date
CZ279913B6 (cs) 1995-08-16
CA2036857C (fr) 2001-11-27
PL289166A1 (en) 1992-02-24
KR950005112B1 (ko) 1995-05-18
KR920000097A (ko) 1992-01-10
JP2616844B2 (ja) 1997-06-04
US5066887A (en) 1991-11-19
EP0443582B1 (fr) 1996-12-04
CN1054331A (zh) 1991-09-04
DE69123375D1 (de) 1997-01-16
EP0443582A2 (fr) 1991-08-28
JPH04218245A (ja) 1992-08-07
PL165779B1 (pl) 1995-02-28
CN1023045C (zh) 1993-12-08
EP0443582A3 (en) 1992-02-05
CS9100443A2 (en) 1991-09-15
DE69123375T2 (de) 1997-05-28
CA2036857A1 (fr) 1991-08-23

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