DE3889696T2 - Verfahren zur Herstellung einer Scandat-Kathode. - Google Patents

Verfahren zur Herstellung einer Scandat-Kathode.

Info

Publication number
DE3889696T2
DE3889696T2 DE3889696T DE3889696T DE3889696T2 DE 3889696 T2 DE3889696 T2 DE 3889696T2 DE 3889696 T DE3889696 T DE 3889696T DE 3889696 T DE3889696 T DE 3889696T DE 3889696 T2 DE3889696 T2 DE 3889696T2
Authority
DE
Germany
Prior art keywords
making
scandate cathode
scandate
cathode
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
DE3889696T
Other languages
English (en)
Other versions
DE3889696D1 (de
Inventor
Esdonk Johannes Van
Jan Hasker
Lith Josef Johannes Van
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE3889696D1 publication Critical patent/DE3889696D1/de
Application granted granted Critical
Publication of DE3889696T2 publication Critical patent/DE3889696T2/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
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/047—Cathodes having impregnated bodies
    • 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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
DE3889696T 1987-07-06 1988-07-04 Verfahren zur Herstellung einer Scandat-Kathode. Expired - Fee Related DE3889696T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8701583A NL8701583A (nl) 1987-07-06 1987-07-06 Scandaatkathode.

Publications (2)

Publication Number Publication Date
DE3889696D1 DE3889696D1 (de) 1994-06-30
DE3889696T2 true DE3889696T2 (de) 1994-12-08

Family

ID=19850259

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3889696T Expired - Fee Related DE3889696T2 (de) 1987-07-06 1988-07-04 Verfahren zur Herstellung einer Scandat-Kathode.

Country Status (5)

Country Link
EP (1) EP0298558B1 (de)
JP (1) JP2685232B2 (de)
KR (1) KR890002949A (de)
DE (1) DE3889696T2 (de)
NL (1) NL8701583A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8902793A (nl) * 1989-11-13 1991-06-03 Philips Nv Scandaatkathode.
EP0651419B1 (de) * 1993-10-28 1998-06-24 Koninklijke Philips Electronics N.V. Vorratskathode und Herstellungsverfahren
BE1007677A3 (nl) * 1993-10-28 1995-09-12 Philips Electronics Nv Werkwijze voor het vervaardigen van een naleveringskathode.
BE1007676A3 (nl) * 1993-10-28 1995-09-12 Philips Electronics Nv Werkwijze voor het vervaardigen van een naleveringskathode.
US5407633A (en) * 1994-03-15 1995-04-18 U.S. Philips Corporation Method of manufacturing a dispenser cathode
US6281626B1 (en) * 1998-03-24 2001-08-28 Casio Computer Co., Ltd. Cold emission electrode method of manufacturing the same and display device using the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165880C (nl) * 1975-02-21 1981-05-15 Philips Nv Naleveringskathode.
JPS58154131A (ja) * 1982-03-10 1983-09-13 Hitachi Ltd 含浸形陰極
NL8201371A (nl) * 1982-04-01 1983-11-01 Philips Nv Werkwijzen voor het vervaardigen van een naleveringskathode en naleveringskathode vervaardigd volgens deze werkwijzen.
NL8403031A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode en scandaatnaleveringskathode vervaardigd volgens deze werkwijze.
NL8403032A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode, naleveringskathode vervaardigd met deze werkwijze.
JPS63254636A (ja) * 1987-04-10 1988-10-21 Hitachi Ltd 含浸形陰極

Also Published As

Publication number Publication date
EP0298558B1 (de) 1994-05-25
NL8701583A (nl) 1989-02-01
DE3889696D1 (de) 1994-06-30
KR890002949A (ko) 1989-04-12
EP0298558A1 (de) 1989-01-11
JP2685232B2 (ja) 1997-12-03
JPH01163941A (ja) 1989-06-28

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

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

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee