ES2003240A6 - Aparato en tubos de rayos catodicos para reducir la intensidad de campo magnetico en el medio ambiente del tubo - Google Patents
Aparato en tubos de rayos catodicos para reducir la intensidad de campo magnetico en el medio ambiente del tuboInfo
- Publication number
- ES2003240A6 ES2003240A6 ES8700829A ES8700829A ES2003240A6 ES 2003240 A6 ES2003240 A6 ES 2003240A6 ES 8700829 A ES8700829 A ES 8700829A ES 8700829 A ES8700829 A ES 8700829A ES 2003240 A6 ES2003240 A6 ES 2003240A6
- Authority
- ES
- Spain
- Prior art keywords
- field
- compensation
- magnetic
- crt
- deflecting
- 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
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
- H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
- H01J2229/0015—Preventing or cancelling fields leaving the enclosure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
- H01J2229/003—Preventing or cancelling fields entering the enclosure
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Details Of Television Scanning (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
UN TUBO DE RAYOS CATODICOS (3) TIENE UNA BOBINA DEFLECTORA (1) RODEADA POR UNA CUBIERTA EN FORMA DE EMBUDO (4) DE MATERIAL MAGNETICO. LA BOBINA DEFLECTORA GENERA UN CAMPO MAGNETICO DE FLECTOR (B) DEL HAZ ELECTRONICO Y UN CAMPO DE FUGA MAGNETICA (BL) EN EL MEDIO AMBIENTE DEL TUBO DE RAYOS CATODICOS (TRC). EL CAMPO DE FUGA ESTA COMPUESTO POR UN CAMPO DE DIPOLO Y UN CAMPO DE CUADRIPOLO. PARA REDUCIR LA INTENSIDAD DE CAMPO MAGNETICO EN EL MEDIO AMBIENTE DEL TRC, SE GENERA UN CAMPO MAGNETICO DE COMPENSACION QUE TIENE DIRECCION OPUESTA AL CAMPO DE FUGAS. EL CAMPO DE COMPENSACION ESTA COMPUESTO POR UN CAMPO DE DIPOLO, QUE ES GENERADO POR UN PRIMER BUCLE DE COMPENSACION (7), Y POR UN CAMPO DE CUADRIPOLO QUE ES GENERADO POR UN SEGUNDO BUCLE DE COMPENSACION (9). EL PRIMER BUCLE DE COMPENSACION (7) ES SUSTANCIALMENTE PLANO Y PERPENDICULAR AL CAMPO MAGNETICO DEFLECTOR (B). EL SEGUNDO BUCLE DE COMPENSACION (9) ES PLANO Y PERPENDICULAR AL EJE DE SIMETRIA LONGITUDINAL (Z) DEL TUBO DE RAYOS CATODICOS Y TIENE UNA PARTE SUPERIOR (9A) Y UNA PARTE INFERIOR (9B) QUE GENERAN DOS CAMPOS DE DIPOLO OPUESTOS ENTRE SI (DK2, DK3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8601432A SE457759B (sv) | 1986-03-27 | 1986-03-27 | Anordning vid bildroer foer att reducera den magnetiska faeltstyrkan i bildroerets omgivning |
SE8604221A SE454826B (sv) | 1986-10-03 | 1986-10-03 | Anordning vid bildror for att reducera den magnetiska feltstyrkan i bildrorets omgivning |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2003240A6 true ES2003240A6 (es) | 1988-10-16 |
Family
ID=26659305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8700829A Expired ES2003240A6 (es) | 1986-03-27 | 1987-03-25 | Aparato en tubos de rayos catodicos para reducir la intensidad de campo magnetico en el medio ambiente del tubo |
Country Status (12)
Country | Link |
---|---|
US (1) | US4851737A (es) |
EP (1) | EP0260311B1 (es) |
JP (1) | JP2525437B2 (es) |
CN (1) | CN1007303B (es) |
AU (1) | AU594145B2 (es) |
CA (1) | CA1281362C (es) |
DK (1) | DK166056C (es) |
ES (1) | ES2003240A6 (es) |
FI (1) | FI84864C (es) |
IE (1) | IE59959B1 (es) |
IN (1) | IN167955B (es) |
WO (1) | WO1987006054A1 (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8700449A (nl) * | 1987-02-24 | 1988-09-16 | Philips Nv | Beeldweergeefinrichting met middelen voor het compenseren van lijnstrooivelden. |
US4853588A (en) * | 1986-09-05 | 1989-08-01 | Denki Onkyo Co., Ltd. | Deflection yoke apparatus with means for reducing unwanted radiation |
WO1988006346A1 (en) * | 1987-02-19 | 1988-08-25 | Hantarex Spa | Device for limiting the magnetic emission in cathode ray tube monitors |
GB8806230D0 (en) * | 1988-03-16 | 1988-04-13 | Vistek Electronics Ltd | Display arrangement |
GB2223649A (en) * | 1988-07-27 | 1990-04-11 | Peter Thompson Wright | A screen for an electromagnetic field |
JP2676018B2 (ja) * | 1988-12-19 | 1997-11-12 | 株式会社日立製作所 | 偏向ヨーク,偏向ヨーク用補助コイル及び画像表示装置 |
US5189348A (en) * | 1989-06-09 | 1993-02-23 | Kabushiki Kaisha Toshiba | Cathode ray tube apparatus intended to reduce magnetic fluxes leaked outside the apparatus |
KR930000354B1 (ko) * | 1989-08-31 | 1993-01-16 | 가부시끼가이샤 도시바 | 누설자속을 경감할 수 있는 음극선관장치 |
US5350973A (en) * | 1989-08-31 | 1994-09-27 | Kabushiki Kaisha Toshiba | Cathode-ray tube apparatus having a reduced leak of magnetic fluxes |
US4996461A (en) * | 1989-09-07 | 1991-02-26 | Hughes Aircraft Company | Closed loop bucking field system |
JPH0724773Y2 (ja) * | 1990-04-28 | 1995-06-05 | 東京特殊電線株式会社 | 偏向ヨーク |
CN1040934C (zh) * | 1991-07-18 | 1998-11-25 | 东芝株式会社 | 阴极射线管图像显示装置 |
US5399939A (en) * | 1992-01-03 | 1995-03-21 | Environmental Services & Products, Inc. | Magnetic shield with cathode ray tube standoff for a computer monitor |
US7839979B2 (en) * | 2006-10-13 | 2010-11-23 | Koninklijke Philips Electronics N.V. | Electron optical apparatus, X-ray emitting device and method of producing an electron beam |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2227029A (en) * | 1937-02-05 | 1940-12-31 | Loewe Radio Inc | Elimination of the magnetic dispersion of transformers |
NL266290A (es) * | 1960-06-24 | |||
US3879633A (en) * | 1963-12-19 | 1975-04-22 | Rca Corp | Television degaussing system with saddle-type coils adjacent CRT cone |
JPS4948248B1 (es) * | 1970-12-26 | 1974-12-20 | ||
JPS5137393Y2 (es) * | 1971-10-28 | 1976-09-13 | ||
US3872347A (en) * | 1972-04-14 | 1975-03-18 | Tokyo Shibaura Electric Co | Degaussing device for colour cathode ray tubes |
JPS566180B2 (es) * | 1972-05-19 | 1981-02-09 | ||
NL167289C (nl) * | 1973-09-13 | 1981-11-16 | Philips Nv | Kleurentelevisieweergeefinrichting voorzien van een kleurentelevisiebeeldbuis en een ontmagnetiserings- inrichting. |
DE2705515C2 (de) * | 1977-02-10 | 1985-11-21 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Bildwiedergabegerät mit einer Bildröhre und einem Netztrafo |
AU535877B2 (en) * | 1979-02-16 | 1984-04-12 | Rca Corp. | Degaussing television tube |
DE3017331A1 (de) * | 1980-05-06 | 1981-11-12 | Siemens AG, 1000 Berlin und 8000 München | Anordnung zur kompensation von auf farbfernsehroehren einwirkenden magnetischen fremdfeldern |
JPS6181269U (es) * | 1984-10-31 | 1986-05-29 | ||
NL8502918A (nl) * | 1985-10-25 | 1987-05-18 | Philips Nv | Beeldweergeefinrichting met ontstoringsmiddelen. |
NL8602397A (nl) * | 1985-10-25 | 1987-05-18 | Philips Nv | Beeldweergeefinrichting met ontstoringsmiddelen. |
-
1987
- 1987-02-24 IN IN160/DEL/87A patent/IN167955B/en unknown
- 1987-03-05 AU AU72024/87A patent/AU594145B2/en not_active Ceased
- 1987-03-05 JP JP62501997A patent/JP2525437B2/ja not_active Expired - Fee Related
- 1987-03-05 EP EP19870902168 patent/EP0260311B1/en not_active Expired
- 1987-03-05 US US07/130,463 patent/US4851737A/en not_active Expired - Lifetime
- 1987-03-05 WO PCT/SE1987/000109 patent/WO1987006054A1/en active IP Right Grant
- 1987-03-10 IE IE60587A patent/IE59959B1/en not_active IP Right Cessation
- 1987-03-25 ES ES8700829A patent/ES2003240A6/es not_active Expired
- 1987-03-26 CN CN87102360.1A patent/CN1007303B/zh not_active Expired
- 1987-03-26 CA CA000533084A patent/CA1281362C/en not_active Expired - Lifetime
- 1987-11-11 FI FI874972A patent/FI84864C/sv not_active IP Right Cessation
- 1987-11-26 DK DK621087A patent/DK166056C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK166056B (da) | 1993-03-01 |
DK621087D0 (da) | 1987-11-26 |
EP0260311B1 (en) | 1990-05-02 |
FI84864C (sv) | 1992-01-27 |
AU594145B2 (en) | 1990-03-01 |
US4851737A (en) | 1989-07-25 |
IN167955B (es) | 1991-01-12 |
JPS63503106A (ja) | 1988-11-10 |
DK166056C (da) | 1993-07-12 |
CN1007303B (zh) | 1990-03-21 |
FI874972A0 (fi) | 1987-11-11 |
DK621087A (da) | 1987-11-26 |
IE59959B1 (en) | 1994-05-04 |
FI874972A (fi) | 1987-11-11 |
AU7202487A (en) | 1987-10-20 |
CN87102360A (zh) | 1987-11-11 |
EP0260311A1 (en) | 1988-03-23 |
FI84864B (fi) | 1991-10-15 |
IE870605L (en) | 1987-09-27 |
WO1987006054A1 (en) | 1987-10-08 |
JP2525437B2 (ja) | 1996-08-21 |
CA1281362C (en) | 1991-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC1A | Transfer granted |
Owner name: ICL SYSTEMS AKTIEBOLAG |
|
FD1A | Patent lapsed |
Effective date: 20041102 |