DE69518713T2 - Cathode ray tube unit into which the radiation electric field of the cathode ray tube which is undesirable from the screen is reduced - Google Patents

Cathode ray tube unit into which the radiation electric field of the cathode ray tube which is undesirable from the screen is reduced

Info

Publication number
DE69518713T2
DE69518713T2 DE1995618713 DE69518713T DE69518713T2 DE 69518713 T2 DE69518713 T2 DE 69518713T2 DE 1995618713 DE1995618713 DE 1995618713 DE 69518713 T DE69518713 T DE 69518713T DE 69518713 T2 DE69518713 T2 DE 69518713T2
Authority
DE
Germany
Prior art keywords
ray tube
cathode ray
undesirable
screen
reduced
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 - Fee Related
Application number
DE1995618713
Other languages
German (de)
Other versions
DE69518713D1 (en
Inventor
Hiroshi Jitsukata
Katsuyuki Kawakami
Soichi Sakurai
Hiroshi Yoshioka
Yoshio Satoh
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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
Priority claimed from JP25320894A external-priority patent/JP3218887B2/en
Priority claimed from JP6303808A external-priority patent/JPH08163474A/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE69518713D1 publication Critical patent/DE69518713D1/en
Application granted granted Critical
Publication of DE69518713T2 publication Critical patent/DE69518713T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
DE1995618713 1994-10-19 1995-10-18 Cathode ray tube unit into which the radiation electric field of the cathode ray tube which is undesirable from the screen is reduced Expired - Fee Related DE69518713T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25320894A JP3218887B2 (en) 1994-10-19 1994-10-19 Cathode ray tube display
JP6303808A JPH08163474A (en) 1994-12-07 1994-12-07 Cathode ray tube display device

Publications (2)

Publication Number Publication Date
DE69518713D1 DE69518713D1 (en) 2000-10-12
DE69518713T2 true DE69518713T2 (en) 2001-05-31

Family

ID=26541080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995618713 Expired - Fee Related DE69518713T2 (en) 1994-10-19 1995-10-18 Cathode ray tube unit into which the radiation electric field of the cathode ray tube which is undesirable from the screen is reduced

Country Status (4)

Country Link
EP (1) EP0708474B1 (en)
KR (1) KR100204724B1 (en)
DE (1) DE69518713T2 (en)
TW (1) TW395550U (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100190160B1 (en) * 1995-10-27 1999-06-01 윤종용 A circuit for shielding electric field of image displayer
JPH09153334A (en) * 1995-11-29 1997-06-10 Mitsubishi Electric Corp Cathode-ray tube device and manufacture thereof
JP2888421B2 (en) * 1996-01-18 1999-05-10 株式会社日立メディアエレクトロニクス Display monitor
JPH1092344A (en) * 1996-07-25 1998-04-10 Toshiba Corp Cathode ray tube and cathode ray tube device
US7514686B2 (en) 2004-08-10 2009-04-07 Canon Kabushiki Kaisha Radiation detecting apparatus, scintillator panel, their manufacturing method and radiation detecting system
DE102011086646B4 (en) 2011-11-18 2013-06-27 Siemens Aktiengesellschaft Screen and method for controlling a screen
TWM479825U (en) 2013-10-01 2014-06-11 Jin-Tan Huang Hand tool capable of marking revolving schedule

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI90598C (en) * 1991-02-07 1994-02-25 Nokia Display Products Oy Method and coupling for reducing harmful radiation caused by a cathode ray tube
SE469456B (en) * 1991-11-22 1993-07-05 Nokia Data Ab PROCEDURE AND DEVICE IN A SCREEN UNIT TO REDUCE ELECTRIC VACCINELY IN THE ENVIRONMENT'S ENVIRONMENT
JPH05283020A (en) 1992-03-31 1993-10-29 Sony Corp Cathode ray tube
US5231332A (en) * 1992-04-15 1993-07-27 Zenith Electronics Corporation AC electric field emission suppression in CRT image displays

Also Published As

Publication number Publication date
EP0708474B1 (en) 2000-09-06
DE69518713D1 (en) 2000-10-12
KR100204724B1 (en) 1999-06-15
TW395550U (en) 2000-06-21
EP0708474A1 (en) 1996-04-24

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee