GB1381018A - Inline electron gun - Google Patents

Inline electron gun

Info

Publication number
GB1381018A
GB1381018A GB2410772A GB2410772A GB1381018A GB 1381018 A GB1381018 A GB 1381018A GB 2410772 A GB2410772 A GB 2410772A GB 2410772 A GB2410772 A GB 2410772A GB 1381018 A GB1381018 A GB 1381018A
Authority
GB
United Kingdom
Prior art keywords
beams
apertures
mils
plane
shield
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
Application number
GB2410772A
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 Corp
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 GB1381018A publication Critical patent/GB1381018A/en
Expired 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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices
    • 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
    • H01J29/51—Arrangements for controlling convergence of a plurality of beams by means of electric field only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/58—Electron beam control inside the vessel
    • H01J2229/581—Electron beam control inside the vessel by magnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/58—Electron beam control inside the vessel
    • H01J2229/583—Electron beam control inside the vessel at the source
    • H01J2229/5835—Electron beam control inside the vessel at the source cooperating with the electron gun

Abstract

1381018 Electron guns RCA CORPORATION 23 May 1972 [14 Jan 1972] 24107/72 Heading H1D An electron gun for a colour television tube of the shadow mask type, comprises means for generating three co-planar parallel beams and lenses in the path of each beam for focusing and converging the beams near the screen. In Fig. 4 the parallel beams are produced by the cathodes 37, control grid 27, screen grid 29, and first accelerating anode. Converging electric fields for the two outer beams are produced by displacing the outer apertures 73b of the second accelerating anode 33 about 6 mils. outwards relative to the co-operating apertures 67b in the first anode; the apertures 67 and 73 may be about 160 mils. and 172 mils. in diameter respectively. The large size and small spacing of these apertures may distort the beams into elliptical shapes and this distortion may be minimized by making the wall 69 barrel-shaped with radii of curvature of 8 inches in the plane of Fig. 4 and of 2À28 inches in the plane normal to Fig. 4. Coma distortion (different raster sizes) due to the eccentricity of the outer beams in the magnetic deflection field may be corrected by surrounding the outer apertures 87 in the shield cup 35 with shield rings 89 of magnetic material to cause a slight weakening of the magnetic field, and a further correction may be applied by providing discs 91 of magnetic material on each side of the central aperture 85 normal to the plane of Fig. 4. The electrodes are all mounted from two parallel glass rods (outlined at 23) the ends of which extend into recesses (outlined at 95) provided in the shield member 35.
GB2410772A 1972-01-14 1972-05-23 Inline electron gun Expired GB1381018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21775872A 1972-01-14 1972-01-14

Publications (1)

Publication Number Publication Date
GB1381018A true GB1381018A (en) 1975-01-22

Family

ID=22812393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2410772A Expired GB1381018A (en) 1972-01-14 1972-05-23 Inline electron gun

Country Status (19)

Country Link
US (1) US3772554A (en)
JP (4) JPS5232714B2 (en)
KR (1) KR780000391B1 (en)
AR (1) AR196104A1 (en)
BE (1) BE793992A (en)
BR (1) BR7300153D0 (en)
CA (1) CA969597A (en)
CS (1) CS199546B2 (en)
DD (1) DD103093A5 (en)
DE (1) DE2223369C3 (en)
ES (1) ES410383A1 (en)
FR (1) FR2167898B1 (en)
GB (1) GB1381018A (en)
IT (1) IT973241B (en)
NL (1) NL184445C (en)
PL (1) PL83625B1 (en)
RO (1) RO78240A (en)
SU (1) SU495851A3 (en)
ZA (1) ZA73216B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228140A (en) * 1988-12-23 1990-08-15 Samsung Electronic Devices Electron gun for cathode ray tube
GB2236613A (en) * 1989-09-04 1991-04-10 Matsushita Electronics Corp In-line electron gun.

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US3892996A (en) * 1972-01-14 1975-07-01 Rca Corp Self-converging color television display system
JPS5342053Y2 (en) * 1972-02-05 1978-10-11
JPS5721255Y2 (en) * 1972-11-06 1982-05-08
NL7217179A (en) * 1972-12-16 1974-06-18
JPS552700B2 (en) * 1973-06-12 1980-01-22
JPS5038462A (en) * 1973-08-08 1975-04-09
JPS5433708B2 (en) * 1973-08-08 1979-10-22
JPS5046263A (en) * 1973-08-29 1975-04-24
JPS50103260A (en) * 1974-01-11 1975-08-15
US3890528A (en) * 1974-03-29 1975-06-17 Gte Sylvania Inc Common focusing electrode for plurality of beams and having same plurality of internal shields
JPS50141220A (en) * 1974-04-30 1975-11-13
JPS5520632B2 (en) * 1974-06-13 1980-06-04
US4071803A (en) * 1974-09-19 1978-01-31 Tokyo Shibaura Electric Co., Ltd. Electron gun assembly
US3984723A (en) * 1974-10-04 1976-10-05 Rca Corporation Display system utilizing beam shape correction
US3952224A (en) * 1974-10-04 1976-04-20 Rca Corporation In-line electron guns having consecutive grids with aligned vertical, substantially elliptical apertures
JPS5615102B2 (en) * 1974-10-14 1981-04-08
US3978367A (en) * 1975-02-27 1976-08-31 Westinghouse Electric Corporation Cathode ray tube second electrode having rectangular projecting ridge
US4086513A (en) * 1975-03-03 1978-04-25 Rca Corporation Plural gun cathode ray tube having parallel plates adjacent grid apertures
JPS5212564A (en) * 1975-07-18 1977-01-31 Matsushita Electronics Corp Cathode ray tube
US3987328A (en) * 1975-08-22 1976-10-19 Hitachi, Ltd. In-line type electron gun assembly for use in multi-beam type color picture tubes
JPS5845135B2 (en) * 1975-11-12 1983-10-07 株式会社日立製作所 Henkojikaiseigyososhitsukikara-jiyuzoukan
JPS5297055U (en) * 1976-01-19 1977-07-20
JPS587016B2 (en) * 1976-06-28 1983-02-08 松下電子工業株式会社 In-line double beam electron gun
JPS5342212U (en) * 1976-09-17 1978-04-12
JPS5342672A (en) * 1976-09-30 1978-04-18 Mitsubishi Electric Corp Color picture receiving tube device
US4049990A (en) * 1976-10-08 1977-09-20 Gte Sylvania Incorporated CRT in-line gun electrode having strengthening ribs
JPS53118972A (en) * 1977-03-28 1978-10-17 Toshiba Corp Electron gun constituent body
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US4218634A (en) * 1977-10-05 1980-08-19 Tokyo Shibaura Denki Kabushiki Kaisha Electron gun
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NL7802129A (en) * 1978-02-27 1979-08-29 Philips Nv DEVICE FOR DISPLAYING COLORED IMAGES.
AU4515779A (en) * 1978-04-12 1979-10-18 Rca Corp. Electron gun
US4318027A (en) * 1978-04-12 1982-03-02 Rca Corporation High potential, low magnification electron gun
US4396862A (en) * 1978-05-01 1983-08-02 Rca Corporation Color picture tube with means for affecting magnetic deflection fields in electron gun area
US4208610A (en) * 1978-06-09 1980-06-17 Zenith Radio Corporation Television picture tubes having an electron gun with aperture electrode shielding means
DE2832687C2 (en) * 1978-07-26 1984-01-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electron gun of a color cathode ray tube
NL7809160A (en) * 1978-09-08 1980-03-11 Philips Nv COLOR IMAGE TUBE.
US4234814A (en) * 1978-09-25 1980-11-18 Rca Corporation Electron gun with astigmatic flare-reducing beam forming region
JPS5553853A (en) * 1978-10-17 1980-04-19 Toshiba Corp Electron gun structure
US4634923A (en) * 1979-11-15 1987-01-06 Rca Corporation Color picture tube having improved electron gun
US4350923A (en) * 1980-03-27 1982-09-21 Rca Corporation Electron gun with balanced lens lips to reduce astigmatism
US4318026A (en) * 1980-04-30 1982-03-02 Rca Corporation Method of making a grid for a cathode-ray tube electron gun
US4604548A (en) * 1980-05-29 1986-08-05 Rca Corporation Electron gun with afterglow eliminator
JPS5625444U (en) * 1980-07-15 1981-03-09
JPS5763750A (en) * 1980-10-03 1982-04-17 Hitachi Ltd Control picture tube electron gun
US4370592A (en) * 1980-10-29 1983-01-25 Rca Corporation Color picture tube having an improved inline electron gun with an expanded focus lens
US4409514A (en) * 1981-04-29 1983-10-11 Rca Corporation Electron gun with improved beam forming region
IT1214441B (en) * 1981-07-10 1990-01-18 Rca Corp SYSTEM FOR THE VISUALIZATION OF COLOR IMAGES.
US4400649A (en) * 1981-07-10 1983-08-23 Rca Corporation Color picture tube having an improved expanded focus lens type inline electron gun
FR2509526B1 (en) * 1981-07-10 1986-08-29 Rca Corp IMPROVEMENTS TO ONLINE ELECTRONIC GUNS WITH EXTENDED FOCAL LENS FOR COLOR IMAGE TUBE
US4388552A (en) * 1981-07-10 1983-06-14 Rca Corporation Color picture tube having an improved expanded focus lens type inline electron gun
US4620133A (en) * 1982-01-29 1986-10-28 Rca Corporation Color image display systems
US4581560A (en) * 1981-12-16 1986-04-08 Hitachi, Ltd. Electron gun for color picture tube
US4514659A (en) * 1982-03-04 1985-04-30 Rca Corporation Inline electron gun for high resolution color display tube
US4486685A (en) * 1982-05-14 1984-12-04 Rca Corporation Electron gun assembly with bead strap having an angulated grasping member
JPS58181476U (en) * 1982-05-25 1983-12-03 元田電子工業株式会社 Automatic conveyor balance device
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
DE3462200D1 (en) * 1983-02-09 1987-02-26 Nec Corp Colour cathode ray tube
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
US4523123A (en) * 1983-05-06 1985-06-11 Rca Corporation Cathode-ray tube having asymmetric slots formed in a screen grid electrode of an inline electron gun
IT1176203B (en) * 1983-06-27 1987-08-18 Rca Corp CATHODE TUBE WITH AN ELECTRONIC CANNON PRESENTING A REGION OF FORMATION OF AN ASTIGMATIC BEAM
US4547697A (en) * 1983-07-22 1985-10-15 North American Philips Consumer Electronics Corp. CRT Shunt retaining means
US4558254A (en) * 1984-04-30 1985-12-10 Rca Corporation Cathode-ray tube having an improved low power cathode assembly
US4782263A (en) * 1984-05-21 1988-11-01 Rca Licensing Corporation Inline electron gun having at least one modified cathode assembly
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
US4701678A (en) * 1985-12-11 1987-10-20 Zenith Electronics Corporation Electron gun system with dynamic focus and dynamic convergence
KR900008203B1 (en) * 1986-03-18 1990-11-05 마쯔시다덴시고오교오 가부시기가이샤 Deflection yoke
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
US4883437A (en) * 1988-06-29 1989-11-28 Rca Licensing Corp. Method for spot-knocking an electron gun mount assembly of a crt utilizing a magnetic field
US4883438A (en) * 1988-06-29 1989-11-28 Rca Licensing Corp. Method for spot-knocking an electron gun mount assembly of a CRT
DE68928273T2 (en) * 1988-09-28 1998-01-29 Toshiba Kawasaki Kk Device for a color cathode ray tube
US5055749A (en) * 1989-08-11 1991-10-08 Zenith Electronics Corporation Self-convergent electron gun system
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
CN1042073C (en) * 1992-11-02 1999-02-10 东芝株式会社 Color kinescope
JP3599765B2 (en) * 1993-04-20 2004-12-08 株式会社東芝 Cathode ray tube device
JPH0729512A (en) * 1993-05-14 1995-01-31 Toshiba Corp Color picture tube
KR100346965B1 (en) * 1994-08-25 2002-11-30 코닌클리케 필립스 일렉트로닉스 엔.브이. Cathode ray tube provided with an eletron gun, and electrostatic lens system
KR100189611B1 (en) * 1995-07-28 1999-06-01 구자홍 Electron gun for cathode ray tube
FR2764730B1 (en) * 1997-06-13 1999-09-17 Thomson Tubes Electroniques ELECTRONIC CANON FOR MULTI-BEAM ELECTRONIC TUBE AND MULTI-BEAM ELECTRONIC TUBE EQUIPPED WITH THIS CANON
CN1126145C (en) * 1997-07-15 2003-10-29 株式会社日立制作所 Color cathode ray tube
TW392190B (en) * 1998-05-11 2000-06-01 Koninkl Philips Electronics Nv Cathode ray tube comprising an electron gun
KR100708630B1 (en) * 2000-03-14 2007-04-18 삼성에스디아이 주식회사 Electron gun and color cathode ray tube utilizing the same
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EP2270834B9 (en) * 2005-09-06 2013-07-10 Carl Zeiss SMT GmbH Particle-optical component

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228140A (en) * 1988-12-23 1990-08-15 Samsung Electronic Devices Electron gun for cathode ray tube
GB2228140B (en) * 1988-12-23 1993-10-27 Samsung Electronic Devices Electron gun for cathode ray tube
GB2236613A (en) * 1989-09-04 1991-04-10 Matsushita Electronics Corp In-line electron gun.
US5061881A (en) * 1989-09-04 1991-10-29 Matsushita Electronics Corporation In-line electron gun
GB2236613B (en) * 1989-09-04 1994-03-23 Matsushita Electronics Corp In-line electron gun

Also Published As

Publication number Publication date
JPS52100971A (en) 1977-08-24
JPS557659B2 (en) 1980-02-27
NL184445C (en) 1989-07-17
KR780000391B1 (en) 1978-10-04
PL83625B1 (en) 1975-12-31
IT973241B (en) 1974-06-10
DD103093A5 (en) 1974-01-05
NL7300483A (en) 1973-07-17
FR2167898B1 (en) 1976-05-14
JPS5232714B2 (en) 1977-08-23
RO78240A (en) 1982-04-12
US3772554A (en) 1973-11-13
JPS51118958A (en) 1976-10-19
BE793992A (en) 1973-05-02
JPS524905B2 (en) 1977-02-08
JPS4882770A (en) 1973-11-05
JPS52132670A (en) 1977-11-07
AR196104A1 (en) 1973-11-30
FR2167898A1 (en) 1973-08-24
JPS557658B2 (en) 1980-02-27
NL184445B (en) 1989-02-16
DE2223369B2 (en) 1977-12-01
DE2223369A1 (en) 1973-07-19
SU495851A3 (en) 1975-12-15
BR7300153D0 (en) 1973-09-27
CS199546B2 (en) 1980-07-31
ZA73216B (en) 1973-12-19
ES410383A1 (en) 1975-12-01
CA969597A (en) 1975-06-17
DE2223369C3 (en) 1981-04-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years