NL193963B - Electrode for use in a fluorescent lamp and method for its manufacture. - Google Patents

Electrode for use in a fluorescent lamp and method for its manufacture.

Info

Publication number
NL193963B
NL193963B NL9400731A NL9400731A NL193963B NL 193963 B NL193963 B NL 193963B NL 9400731 A NL9400731 A NL 9400731A NL 9400731 A NL9400731 A NL 9400731A NL 193963 B NL193963 B NL 193963B
Authority
NL
Netherlands
Prior art keywords
electrode
manufacture
fluorescent lamp
fluorescent
lamp
Prior art date
Application number
NL9400731A
Other languages
Dutch (nl)
Other versions
NL193963C (en
NL9400731A (en
Inventor
Hiroshi Imai
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to NL9400731A priority Critical patent/NL193963C/en
Priority to DE4415748A priority patent/DE4415748C2/en
Publication of NL9400731A publication Critical patent/NL9400731A/en
Publication of NL193963B publication Critical patent/NL193963B/en
Application granted granted Critical
Publication of NL193963C publication Critical patent/NL193963C/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
NL9400731A 1994-05-04 1994-05-04 Electrode for use in a fluorescent lamp and method for its manufacture. NL193963C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL9400731A NL193963C (en) 1994-05-04 1994-05-04 Electrode for use in a fluorescent lamp and method for its manufacture.
DE4415748A DE4415748C2 (en) 1994-05-04 1994-05-04 Electrode for a fluorescent lamp

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL9400731 1994-05-04
NL9400731A NL193963C (en) 1994-05-04 1994-05-04 Electrode for use in a fluorescent lamp and method for its manufacture.
DE4415748A DE4415748C2 (en) 1994-05-04 1994-05-04 Electrode for a fluorescent lamp
DE4415748 1994-05-04

Publications (3)

Publication Number Publication Date
NL9400731A NL9400731A (en) 1995-12-01
NL193963B true NL193963B (en) 2000-11-01
NL193963C NL193963C (en) 2001-03-02

Family

ID=25936280

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9400731A NL193963C (en) 1994-05-04 1994-05-04 Electrode for use in a fluorescent lamp and method for its manufacture.

Country Status (2)

Country Link
DE (1) DE4415748C2 (en)
NL (1) NL193963C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19956322A1 (en) * 1999-11-23 2001-05-31 Philips Corp Intellectual Pty Gas discharge lamp with an oxide emitter electrode

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE482916A (en) * 1947-06-05
NL77446C (en) * 1948-12-22
DE947992C (en) * 1953-04-24 1956-08-23 Lumalampan Ab Activated helical wire electrode for electrical discharge tubes, especially fluorescent tubes
GB1167157A (en) * 1966-01-08 1969-10-15 Matsushita Electronics Corp Electric Discharge Tube.
GB1178051A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp Noiseless Discharge Tube
US4321503A (en) * 1978-11-06 1982-03-23 Westinghouse Electric Corp. HID Lamp electrode comprising barium-calcium niobate or tantalate
US4836816A (en) * 1988-05-06 1989-06-06 Gte Products Corporation Method of treating tungsten cathodes
JPH04310901A (en) * 1991-04-09 1992-11-02 Fuji Photo Film Co Ltd Composition for color filter and production of color filter

Also Published As

Publication number Publication date
NL193963C (en) 2001-03-02
DE4415748C2 (en) 1998-08-13
DE4415748A1 (en) 1995-11-09
NL9400731A (en) 1995-12-01

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Legal Events

Date Code Title Description
A1C A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee

Effective date: 20031201