CA967223A - Static convergence device for electron beams - Google Patents

Static convergence device for electron beams

Info

Publication number: CA967223A
Authority: CA; Canada
Prior art keywords: electron beams; convergence device; static convergence; static; beams
Prior art date: 1972-03-20
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

CA165,802A

Other versions

CA165802S (en

Inventor

Ira F. Thompson

Joseph L. Smith

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.)

1972-03-20

Filing date

1973-03-12

Publication date

1975-05-06

1973-03-12 Application filed by RCA Corp filed Critical RCA Corp

1975-05-06 Application granted granted Critical

1975-05-06 Publication of CA967223A publication Critical patent/CA967223A/en

Status 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
- H01J29/702—Convergence correction arrangements therefor
- H01J29/703—Static convergence systems

CA165,802A 1972-03-20 1973-03-12 Static convergence device for electron beams Expired CA967223A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB1293672A GB1429292A (en)	1972-03-20	1972-03-20	Static convergence device for electron beams
US00335452A US3808570A (en)	1972-03-20	1973-02-26	Static convergence device for electron beams

Publications (1)

Publication Number	Publication Date
CA967223A true CA967223A (en)	1975-05-06

Family

ID=26249365

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA165,802A Expired CA967223A (en)	1972-03-20	1973-03-12	Static convergence device for electron beams

Country Status (7)

Country	Link
US (1)	US3808570A (en)
BE (1)	BE797012A (en)
CA (1)	CA967223A (en)
CH (1)	CH563663A5 (en)
FR (1)	FR2330139A1 (en)
GB (1)	GB1429292A (en)
NL (1)	NL7303827A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL160427C (en) *	1973-09-14		Philips Nv	DISPLAY DEVICE FOR COLOR TV.
US3873953A (en) *	1974-02-14	1975-03-25	Gte Sylvania Inc	Magnet retaining means for a CRT beam adjustment device
US4032872A (en) *	1975-10-21	1977-06-28	Rca Corporation	Beam adjustment assembly for a cathode ray tube
US4570140A (en) *	1976-03-05	1986-02-11	Hitachi, Ltd.	Magnet assembly for adjusting the running path of the electron beam of color picture tube
US4091347A (en) *	1976-03-17	1978-05-23	Rca Corporation	Convergence apparatus for in-line beams
JPS531422A (en) *	1976-06-25	1978-01-09	Matsushita Electric Ind Co Ltd	Convergence unit
JPS55154046A (en) *	1979-05-17	1980-12-01	Sanyo Electric Co Ltd	Convergence device
US4670726A (en) *	1984-12-20	1987-06-02	Hitachi Metals, Ltd.	Convergence device for electron beams in color picture tube
US5399933A (en) *	1993-05-20	1995-03-21	Chunghwa Picture Tubes, Ltd.	Magnetic beam adjusting rings with different thickness
KR100188920B1 (en) *	1994-06-30	1999-06-01	김광호	A shielding apparatus of leakage electromagnetic wave of deflection yoke
JPH09306378A (en) *	1996-05-15	1997-11-28	Hitachi Ltd	Cathode ray tube
JPH10144236A (en) *	1996-11-14	1998-05-29	Hitachi Ltd	Color cathode-ray tube
KR100496272B1 (en) *	1998-05-06	2005-09-09	삼성에스디아이 주식회사	Convergence magnet assembly of color cathode ray tube
KR20000066040A (en) *	1999-04-12	2000-11-15	김영남	Color purity and convergence magnet for color cathode ray tube
US7038368B2 (en) *	2003-08-01	2006-05-02	Matsushita Toshiba Picture Display Co., Ltd.	Color picture tube apparatus having a pair of bar shaped magnets for correcting misconvergence due to the rotational shift of the electron beams

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB670021A (en) *	1949-02-18	1952-04-09	Patrick Richard James Court	Improvements in beam centering devices for cathode ray tubes
US3742406A (en) *	1969-12-10	1973-06-26	Illinois Tool Works	Blue lateral and purity magnet structure
US3701065A (en) *	1971-02-03	1972-10-24	Rca Corp	Color picture tube beam convergence apparatus
US3725831A (en) *	1972-01-14	1973-04-03	Rca Corp	Magnetic beam adjusting arrangements

1972
- 1972-03-20 GB GB1293672A patent/GB1429292A/en not_active Expired
1973
- 1973-02-26 US US00335452A patent/US3808570A/en not_active Expired - Lifetime
- 1973-03-12 CA CA165,802A patent/CA967223A/en not_active Expired
- 1973-03-19 CH CH396673A patent/CH563663A5/xx not_active IP Right Cessation
- 1973-03-19 FR FR7309773A patent/FR2330139A1/en active Granted
- 1973-03-19 BE BE128988A patent/BE797012A/en unknown
- 1973-03-19 NL NL7303827A patent/NL7303827A/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
AU5306473A (en)	1974-09-12
BE797012A (en)	1973-07-16
FR2330139A1 (en)	1977-05-27
CH563663A5 (en)	1975-06-30
NL7303827A (en)	1973-09-24
US3808570A (en)	1974-04-30
DE2313888A1 (en)	1973-10-04
FR2330139B1 (en)	1978-03-24
DE2313888B2 (en)	1976-03-04
GB1429292A (en)	1976-03-24

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