DE69925940D1 - Indirekt beheizte Kathode und diese enhaltende Kathodenstrahlröhre - Google Patents

Indirekt beheizte Kathode und diese enhaltende Kathodenstrahlröhre

Info

Publication number
DE69925940D1
DE69925940D1 DE69925940T DE69925940T DE69925940D1 DE 69925940 D1 DE69925940 D1 DE 69925940D1 DE 69925940 T DE69925940 T DE 69925940T DE 69925940 T DE69925940 T DE 69925940T DE 69925940 D1 DE69925940 D1 DE 69925940D1
Authority
DE
Germany
Prior art keywords
cathode
alumina
ray tube
heater
insulating layer
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
DE69925940T
Other languages
English (en)
Other versions
DE69925940T2 (de
Inventor
Yoji Yamamoto
Masaki Kawasaki
Hideo Koshino
Junya Nakai
Tetsuya Shimizu
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69925940D1 publication Critical patent/DE69925940D1/de
Publication of DE69925940T2 publication Critical patent/DE69925940T2/de
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
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Solid Thermionic Cathode (AREA)
  • Tires In General (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Discharge Heating (AREA)
DE69925940T 1998-01-20 1999-01-14 Indirekt beheizte Kathode und diese enhaltende Kathodenstrahlröhre Expired - Fee Related DE69925940T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP830498 1998-01-20
JP830498 1998-01-20

Publications (2)

Publication Number Publication Date
DE69925940D1 true DE69925940D1 (de) 2005-08-04
DE69925940T2 DE69925940T2 (de) 2005-12-22

Family

ID=11689423

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69925940T Expired - Fee Related DE69925940T2 (de) 1998-01-20 1999-01-14 Indirekt beheizte Kathode und diese enhaltende Kathodenstrahlröhre

Country Status (7)

Country Link
US (1) US6242854B1 (de)
EP (1) EP0930633B1 (de)
KR (1) KR100300172B1 (de)
CN (1) CN1159746C (de)
AT (1) ATE298925T1 (de)
DE (1) DE69925940T2 (de)
TW (1) TW414909B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047911A1 (fr) * 2006-10-20 2008-04-24 Panasonic Corporation Écran à plasma et procédé de fabrication de celui-ci
JP4997953B2 (ja) * 2006-12-15 2012-08-15 日本軽金属株式会社 高純度α−アルミナの製造方法
US9517546B2 (en) 2011-09-26 2016-12-13 Saint-Gobain Ceramics & Plastics, Inc. Abrasive articles including abrasive particulate materials, coated abrasives using the abrasive particulate materials and methods of forming

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB617879A (en) 1945-10-01 1949-02-14 M O Valve Co Ltd Improvements in and relating to thermionic cathodes
DE1071566B (de) 1953-10-10
JPS5936381B2 (ja) 1976-06-28 1984-09-03 株式会社東芝 電子管用ヒ−タの製造方法
JPS59200798A (ja) 1983-04-29 1984-11-14 Sony Corp 粉体の非水溶液系電着法
JPS60221925A (ja) 1985-03-29 1985-11-06 Mitsubishi Electric Corp 傍熱型電子管用ヒータの製造方法
JPH0622095B2 (ja) 1985-05-17 1994-03-23 株式会社日立製作所 ダ−クヒ−タの製造方法
JPS6431825A (en) 1987-07-28 1989-02-02 Mitsubishi Chem Ind Material for optical parts formation
JPS6471032A (en) 1987-09-11 1989-03-16 Hitachi Ltd Cathode heater for electron tube
JPH083976B2 (ja) 1989-04-15 1996-01-17 株式会社東芝 電子管用ヒータ及びそれを備えた含浸型陰極構体
JPH04127022A (ja) 1990-09-19 1992-04-28 Hitachi Ltd ヒータ
JP2984179B2 (ja) 1994-01-27 1999-11-29 株式会社日立製作所 無機絶縁膜を有するヒータ及びブラウン管の製法

Also Published As

Publication number Publication date
KR100300172B1 (ko) 2001-09-26
DE69925940T2 (de) 2005-12-22
CN1159746C (zh) 2004-07-28
TW414909B (en) 2000-12-11
ATE298925T1 (de) 2005-07-15
EP0930633A1 (de) 1999-07-21
EP0930633B1 (de) 2005-06-29
CN1224229A (zh) 1999-07-28
US6242854B1 (en) 2001-06-05
KR19990067990A (ko) 1999-08-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

8339 Ceased/non-payment of the annual fee