FR2449382A1 - ARRANGEMENT OF A DIFFUSING COIL IN ONE PIECE AND TIPPED - Google Patents

ARRANGEMENT OF A DIFFUSING COIL IN ONE PIECE AND TIPPED

Info

Publication number
FR2449382A1
FR2449382A1 FR8003444A FR8003444A FR2449382A1 FR 2449382 A1 FR2449382 A1 FR 2449382A1 FR 8003444 A FR8003444 A FR 8003444A FR 8003444 A FR8003444 A FR 8003444A FR 2449382 A1 FR2449382 A1 FR 2449382A1
Authority
FR
France
Prior art keywords
coil
envelope
arrangement
shield
enclosure
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.)
Granted
Application number
FR8003444A
Other languages
French (fr)
Other versions
FR2449382B1 (en
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 FR2449382A1 publication Critical patent/FR2449382A1/en
Application granted granted Critical
Publication of FR2449382B1 publication Critical patent/FR2449382B1/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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/29—Picture reproducers using cathode ray tubes using demagnetisation or compensation of external magnetic fields
    • 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
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

L'INVENTION CONCERNE UN AGENCEMENT DE DEGAUSSAGE POUR UN TUBE-IMAGE A MASQUE D'OMBRE AVEC UN BLINDAGE MAGNETIQUE EVASE DANS SON ENVELOPPE. SELON L'INVENTION, L'AGENCEMENT COMPREND UNE SEULE BOBINE 220 ENTOURANT LA PARTIE EVASEE DE L'ENVELOPPE, L'AXE DE LA BOBINE ETANT BASCULE PAR RAPPORT A L'AXE DE L'ENVELOPPE POUR DISPOSER UN PREMIER SEGMENT DE LA CIRCONFERENCE DE LA BOBINE AU-DESSUS D'UNE REGION DE L'ENVELOPPE ADJACENTE A UNE GRANDE EXTREMITE DU BLINDAGE ET UN SECOND SEGMENT DE LA CIRCONFERENCE DE LA BOBINE DIAMETRALEMENT OPPOSE AU PREMIER, EN UNE POSITION CONTIGUE A UNE REGION DE L'ENVELOPPE ADJACENTE A UNE PARTIE DE LA PETITE EXTREMITE DU BLINDAGE; UN MOYEN 530 FOURNIT UN COURANT ALTERNATIF VARIABLE A LA BOBINE POUR DEGAUSSER LE MASQUE D'OMBRE ET LE BLINDAGE MAGNETIQUE. L'INVENTION S'APPLIQUE NOTAMMENT AUX TELEVISEURS EN COULEURS.THE INVENTION RELATES TO A DEGAESSING ARRANGEMENT FOR A SHADOW MASK IMAGE TUBE WITH A FLARE MAGNETIC SHIELD IN ITS ENVELOPE. ACCORDING TO THE INVENTION, THE ARRANGEMENT INCLUDES A SINGLE COIL 220 SURROUNDING THE FLARED PART OF THE ENCLOSURE, THE AXIS OF THE COIL BEING TILT RELATIVE TO THE AXIS OF THE ENVELOPE TO PROVIDE A FIRST SEGMENT OF THE CIRCUMFERENCE OF THE ENCLOSURE. COIL ABOVE A REGION OF THE ENVELOPE ADJACENT TO A LARGE END OF THE SHIELD AND A SECOND SEGMENT OF THE CIRCUMFERENCE OF THE COIL DIAMETRALLY OPPOSED TO THE FIRST, IN A POSITION CONTIGUOUS WITH A REGION OF THE ENVELOPE ADJACENT TO PART OF THE SMALL END OF THE SHIELD; A MEDIUM 530 PROVIDES A VARIABLE ALTERNATIVE CURRENT TO THE COIL TO RELIEVE THE SHADOW MASK AND MAGNETIC SHIELDING. THE INVENTION APPLIES IN PARTICULAR TO COLOR TELEVISIONS.

FR8003444A 1979-02-16 1980-02-15 ARRANGEMENT OF A DIFFUSING COIL IN ONE PIECE AND TIPPED Expired FR2449382B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1281079A 1979-02-16 1979-02-16

Publications (2)

Publication Number Publication Date
FR2449382A1 true FR2449382A1 (en) 1980-09-12
FR2449382B1 FR2449382B1 (en) 1985-11-22

Family

ID=21756797

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003444A Expired FR2449382B1 (en) 1979-02-16 1980-02-15 ARRANGEMENT OF A DIFFUSING COIL IN ONE PIECE AND TIPPED

Country Status (20)

Country Link
JP (1) JPS55112087A (en)
KR (1) KR900006295B1 (en)
AT (1) AT381201B (en)
AU (1) AU535877B2 (en)
BE (1) BE881758A (en)
CA (1) CA1135321A (en)
DE (1) DE3005763C2 (en)
DK (1) DK148868C (en)
ES (1) ES488650A0 (en)
FI (1) FI70357C (en)
FR (1) FR2449382B1 (en)
GB (1) GB2046559B (en)
HK (1) HK27284A (en)
IT (1) IT1140569B (en)
MY (1) MY8500294A (en)
NZ (1) NZ192884A (en)
PL (1) PL126142B1 (en)
SE (1) SE441886B (en)
SU (1) SU936835A3 (en)
ZA (1) ZA80875B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN167955B (en) * 1986-03-27 1991-01-12 Nokia Data Systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614519A (en) * 1967-12-18 1971-10-19 Zenith Radio Corp Cathode-ray tube magnetic shield
FR2180067A1 (en) * 1972-04-14 1973-11-23 Tokyo Shibaura Electric Co

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921226A (en) * 1956-05-24 1960-01-12 Philco Corp Apparatus for color purity correction in color television receivers
US2962621A (en) * 1958-10-10 1960-11-29 Westinghouse Electric Corp Color television apparatus
US3322998A (en) * 1964-08-31 1967-05-30 Rca Corp Color purity correcting apparatus for colored television picture tubes
NL167289C (en) * 1973-09-13 1981-11-16 Philips Nv COLOR TELEVISION DEVICE EQUIPPED WITH A COLOR TELEVISION IMAGE TUBE AND DEMAGNETIZING DEVICE.
NL165020C (en) * 1974-12-16 1981-02-16 Philips Nv COLOR TV RECEIVER CONTAINING A DEMAGNETIZER CIRCUIT AND COMPOSITE THERMISTOR ELEMENT FOR USE IN SUCH A CIRCUIT.
JP3016048B2 (en) * 1991-12-04 2000-03-06 東洋自動機株式会社 Temperature control method for impulse sealing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614519A (en) * 1967-12-18 1971-10-19 Zenith Radio Corp Cathode-ray tube magnetic shield
FR2180067A1 (en) * 1972-04-14 1973-11-23 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
FI70357B (en) 1986-02-28
JPS55112087A (en) 1980-08-29
NZ192884A (en) 1983-11-18
GB2046559B (en) 1983-04-20
AU535877B2 (en) 1984-04-12
AU5535780A (en) 1980-08-21
SU936835A3 (en) 1982-06-15
GB2046559A (en) 1980-11-12
ATA88580A (en) 1986-01-15
IT1140569B (en) 1986-10-01
HK27284A (en) 1984-03-30
MY8500294A (en) 1985-12-31
FI70357C (en) 1986-09-15
AT381201B (en) 1986-09-10
FI800394A (en) 1980-08-17
ES8100551A1 (en) 1980-11-01
CA1135321A (en) 1982-11-09
SE8001035L (en) 1980-08-17
DE3005763C2 (en) 1984-11-15
SE441886B (en) 1985-11-11
DK67780A (en) 1980-08-17
BE881758A (en) 1980-05-30
DK148868B (en) 1985-10-28
ZA80875B (en) 1981-08-26
DE3005763A1 (en) 1980-08-28
ES488650A0 (en) 1980-11-01
PL222054A1 (en) 1980-11-03
PL126142B1 (en) 1983-07-30
DK148868C (en) 1986-04-21
FR2449382B1 (en) 1985-11-22
KR900006295B1 (en) 1990-08-27
IT8019868A0 (en) 1980-02-12

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse