GB1257528A - - Google Patents

Info

Publication number
GB1257528A
GB1257528A GB1257528DA GB1257528A GB 1257528 A GB1257528 A GB 1257528A GB 1257528D A GB1257528D A GB 1257528DA GB 1257528 A GB1257528 A GB 1257528A
Authority
GB
United Kingdom
Prior art keywords
screen
tube axis
compensated
terrestial
magnetic field
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
Other languages
English (en)
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 filed Critical
Publication of GB1257528A publication Critical patent/GB1257528A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01J2229/003—Preventing or cancelling fields entering the enclosure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
GB1257528D 1968-07-16 1969-06-23 Expired GB1257528A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR159318 1968-07-16

Publications (1)

Publication Number Publication Date
GB1257528A true GB1257528A (enrdf_load_stackoverflow) 1971-12-22

Family

ID=8652615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257528D Expired GB1257528A (enrdf_load_stackoverflow) 1968-07-16 1969-06-23

Country Status (4)

Country Link
US (1) US3588583A (enrdf_load_stackoverflow)
DE (1) DE1935789A1 (enrdf_load_stackoverflow)
FR (1) FR1600842A (enrdf_load_stackoverflow)
GB (1) GB1257528A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196817A (en) * 1986-10-30 1988-05-05 Ibm Degaussing system offsets ambient magnetic fields

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887833A (en) * 1969-06-16 1975-06-03 Hitachi Ltd Color purity adjusting device for a color picture tube
NL149035B (nl) * 1970-04-10 1976-03-15 Philips Nv Werkwijze voor het instellen van de kleurzuiverheid bij een kleurenteleviesieweergeefbuis, alsmede inrichting voor het uitvoeren van deze werkwijze.
JPS5320993Y2 (enrdf_load_stackoverflow) * 1972-08-09 1978-06-02
NL167289C (nl) * 1973-09-13 1981-11-16 Philips Nv Kleurentelevisieweergeefinrichting voorzien van een kleurentelevisiebeeldbuis en een ontmagnetiserings- inrichting.
JPS5536928Y2 (enrdf_load_stackoverflow) * 1974-04-19 1980-08-30
US4243913A (en) * 1979-08-29 1981-01-06 Rca Corporation Color picture tube magnetic shielding and degaussing structure
US5583401A (en) * 1992-02-07 1996-12-10 Matsushita Electric Industrial Co., Ltd. Beam landing correction apparatus for a cathode ray tube
EP0555094A2 (en) * 1992-02-07 1993-08-11 Matsushita Electric Industrial Co., Ltd. Beam landing correction apparatus for a cathode ray tube
JPH08340544A (ja) * 1995-06-14 1996-12-24 Sony Corp 陰極線管の消磁方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196817A (en) * 1986-10-30 1988-05-05 Ibm Degaussing system offsets ambient magnetic fields

Also Published As

Publication number Publication date
US3588583A (en) 1971-06-28
FR1600842A (enrdf_load_stackoverflow) 1970-08-03
DE1935789A1 (de) 1970-03-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees