IT8420780A1 - Tubo a raggi catodici presentante una fenditura asimmetrica formata nell'elettrodo di griglia schermo di un sistema di cannoni elettronici in linea - Google Patents

Tubo a raggi catodici presentante una fenditura asimmetrica formata nell'elettrodo di griglia schermo di un sistema di cannoni elettronici in linea

Info

Publication number
IT8420780A1
IT8420780A1 IT1984A20780A IT2078084A IT8420780A1 IT 8420780 A1 IT8420780 A1 IT 8420780A1 IT 1984A20780 A IT1984A20780 A IT 1984A20780A IT 2078084 A IT2078084 A IT 2078084A IT 8420780 A1 IT8420780 A1 IT 8420780A1
Authority
IT
Italy
Prior art keywords
beamed
cathode
tube
grid electrode
slit formed
Prior art date
Application number
IT1984A20780A
Other languages
English (en)
Other versions
IT1176140B (it
IT8420780A0 (it
Original Assignee
Rca 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 Corp filed Critical Rca Corp
Publication of IT8420780A0 publication Critical patent/IT8420780A0/it
Publication of IT8420780A1 publication Critical patent/IT8420780A1/it
Application granted granted Critical
Publication of IT1176140B publication Critical patent/IT1176140B/it

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
    • 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
IT20780/84A 1983-05-06 1984-05-03 Tubo a raggi catodici presentante una fenditura asimmetrica formata nell'elettrodo di griglia schermo di un sistema di cannoni elettronici in linea IT1176140B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/492,437 US4520292A (en) 1983-05-06 1983-05-06 Cathode-ray tube having an asymmetric slot formed in a screen grid electrode of an inline electron gun

Publications (3)

Publication Number Publication Date
IT8420780A0 IT8420780A0 (it) 1984-05-03
IT8420780A1 true IT8420780A1 (it) 1985-11-03
IT1176140B IT1176140B (it) 1987-08-12

Family

ID=23956245

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20780/84A IT1176140B (it) 1983-05-06 1984-05-03 Tubo a raggi catodici presentante una fenditura asimmetrica formata nell'elettrodo di griglia schermo di un sistema di cannoni elettronici in linea

Country Status (9)

Country Link
US (1) US4520292A (it)
JP (1) JPS59211948A (it)
KR (1) KR920005903B1 (it)
CA (1) CA1212144A (it)
DE (1) DE3416560A1 (it)
FR (1) FR2545647B1 (it)
GB (1) GB2140968B (it)
HK (1) HK60287A (it)
IT (1) IT1176140B (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4649317A (en) * 1985-08-27 1987-03-10 Rca Corporation Multibeam electron gun having means for supporting a screen grid electrode relative to a main focusing lens
US4631443A (en) * 1985-08-27 1986-12-23 Rca Corporation Multibeam electron gun having a formed transition member
US4629934A (en) * 1985-08-27 1986-12-16 Rca Corporation Multibeam electron gun having means for positioning a screen grid electrode
US4701678A (en) * 1985-12-11 1987-10-20 Zenith Electronics Corporation Electron gun system with dynamic focus and dynamic convergence
DE3718838A1 (de) * 1987-06-05 1988-12-15 Standard Elektrik Lorenz Ag Elektronenstrahlerzeugersystem
US4771216A (en) * 1987-08-13 1988-09-13 Zenith Electronics Corporation Electron gun system providing for control of convergence, astigmatism and focus with a single dynamic signal
FR2644628B1 (fr) * 1989-03-17 1996-10-04 Videocolor Grille de focalisation pour canon a electrons en ligne pour tube de television en couleurs et canon a electrons en ligne utilisant une telle grille
US5036258A (en) * 1989-08-11 1991-07-30 Zenith Electronics Corporation Color CRT system and process with dynamic quadrupole lens structure
US5043625A (en) * 1989-11-15 1991-08-27 Zenith Electronics Corporation Spherical aberration-corrected inline electron gun
US5066887A (en) * 1990-02-22 1991-11-19 Rca Thomson Licensing Corp. Color picture tube having an inline electron gun with an astigmatic prefocusing lens
US5220239A (en) * 1991-12-09 1993-06-15 Chunghwa Picture Tubes, Ltd. High density electron beam generated by low voltage limiting aperture gun
JPH05325828A (ja) 1992-05-26 1993-12-10 Hitachi Ltd 陰極線管
US5241240A (en) * 1992-06-01 1993-08-31 Chunghwa Picture Tubes, Ltd. Hollow chain link main lens design for color CRT
KR950012549A (ko) * 1993-10-22 1995-05-16 에스. 씨. 첸 칼라 음극선관전자총을 위한 연장중앙 원형 개구를 가진 오목한 체인-링크 주렌즈 설계
JP3429593B2 (ja) * 1995-02-13 2003-07-22 株式会社日立製作所 カラー陰極線管
US6528934B1 (en) * 2000-05-30 2003-03-04 Chunghwa Picture Tubes Ltd. Beam forming region for electron gun

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US381074A (en) * 1888-04-10 Joseph p
NL6709978A (it) * 1967-07-18 1969-01-21
NL7208728A (it) * 1971-07-28 1973-12-28
US3928785A (en) * 1971-11-23 1975-12-23 Adrian W Standaart Single gun, multi-screen, multi-beam, multi-color cathode ray tube
BE793992A (fr) * 1972-01-14 1973-05-02 Rca Corp Tube a rayons cathodiques
JPS5239365A (en) * 1975-09-25 1977-03-26 Hitachi Ltd Electronic gun device
JPS5270748A (en) * 1975-12-09 1977-06-13 Matsushita Electronics Corp Color picture tube
JPS52114655U (it) * 1976-02-26 1977-08-31
DD140516A5 (de) * 1977-11-24 1980-03-05 Philips Nv Kathodenstrahlroehre
JPS54133070A (en) * 1978-04-07 1979-10-16 Hitachi Ltd Constituent for electron gun
DE2832687C2 (de) * 1978-07-26 1984-01-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektronenstrahlerzeugungssystem einer Farbbildkathodenstrahlröhre
US4234814A (en) * 1978-09-25 1980-11-18 Rca Corporation Electron gun with astigmatic flare-reducing beam forming region
US4272700A (en) * 1979-11-15 1981-06-09 Gte Products Corporation One piece astigmatic grid for color picture tube electron gun and method of making same
US4251747A (en) * 1979-11-15 1981-02-17 Gte Products Corporation One piece astigmatic grid for color picture tube electron gun
US4319163A (en) * 1980-06-30 1982-03-09 Rca Corporation Electron gun with deflection-synchronized astigmatic screen grid means
JPS5790852A (en) * 1980-11-28 1982-06-05 Toshiba Corp Electron gun for cathode ray tube
JPS57113542A (en) * 1981-01-07 1982-07-15 Hitachi Ltd Electrode structure for electron gun
NL8102526A (nl) * 1981-05-22 1982-12-16 Philips Nv Kleurenbeeldbuis.
JPS5810354A (ja) * 1981-07-10 1983-01-20 Matsushita Electronics Corp インライン形カラ−受像管
JPS5859534A (ja) * 1981-10-01 1983-04-08 Matsushita Electronics Corp インライン形カラ−受像管
JPS5868848A (ja) * 1981-10-20 1983-04-23 Toshiba Corp カラー受像管用電子銃構体
US4449069A (en) * 1982-02-10 1984-05-15 Rca Corporation Color picture tube with focusing electrode having electrostatic field distortion aperture therein
JPS58209039A (ja) * 1982-05-28 1983-12-05 Hitachi Ltd カラーブラウン管
US4513222A (en) * 1983-01-27 1985-04-23 Rca Corporation Color picture tube having reconvergence slots formed in a screen grid electrode of an inline electron gun

Also Published As

Publication number Publication date
KR840009364A (ko) 1984-12-26
JPH0470730B2 (it) 1992-11-11
DE3416560A1 (de) 1984-11-08
JPS59211948A (ja) 1984-11-30
GB8410638D0 (en) 1984-05-31
US4520292A (en) 1985-05-28
GB2140968B (en) 1986-09-03
FR2545647A1 (fr) 1984-11-09
CA1212144A (en) 1986-09-30
KR920005903B1 (ko) 1992-07-24
HK60287A (en) 1987-08-21
IT1176140B (it) 1987-08-12
IT8420780A0 (it) 1984-05-03
DE3416560C2 (it) 1987-02-12
FR2545647B1 (fr) 1988-06-10
GB2140968A (en) 1984-12-05

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970529