AU7567874A - Cathode-ray tube having an internal-external magnetic shield and degaussing combination - Google Patents

Cathode-ray tube having an internal-external magnetic shield and degaussing combination

Info

Publication number
AU7567874A
AU7567874A AU75678/74A AU7567874A AU7567874A AU 7567874 A AU7567874 A AU 7567874A AU 75678/74 A AU75678/74 A AU 75678/74A AU 7567874 A AU7567874 A AU 7567874A AU 7567874 A AU7567874 A AU 7567874A
Authority
AU
Australia
Prior art keywords
degaussing
cathode
internal
combination
ray tube
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
AU75678/74A
Other versions
AU487684B2 (en
Inventor
Monroe Shrader Terry
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
Publication of AU487684B2 publication Critical patent/AU487684B2/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of AU7567874A publication Critical patent/AU7567874A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • 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
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • 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
    • 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)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
AU75678/74A 1973-11-29 1974-11-25 Cathode-ray tube having an internal-external magnetic shield and degaussing combination Expired - Lifetime AU487684B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US420324A US3867668A (en) 1973-11-29 1973-11-29 Cathode-ray tube having an internal-external magnetic shield and degaussing combination
USUS420324 1973-11-29

Publications (2)

Publication Number Publication Date
AU487684B2 AU487684B2 (en)
AU7567874A true AU7567874A (en) 1976-05-27

Family

ID=

Also Published As

Publication number Publication date
FR2253267A1 (en) 1975-06-27
BR7409924A (en) 1976-05-25
ES432172A1 (en) 1976-09-16
IT1027576B (en) 1978-12-20
US3867668A (en) 1975-02-18
JPS50114927A (en) 1975-09-09
JPS5426418B2 (en) 1979-09-04
CA1017400A (en) 1977-09-13
DE2456315A1 (en) 1975-06-05
FR2253267B1 (en) 1979-07-06
GB1459656A (en) 1976-12-22
NL7415534A (en) 1975-06-02
PL100481B1 (en) 1978-10-31
BE822727A (en) 1975-03-14

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