BE853392A - Perfectionnements aux lampes a decharge a vapeur de mercure a haute pression - Google Patents

Perfectionnements aux lampes a decharge a vapeur de mercure a haute pression

Info

Publication number
BE853392A
BE853392A BE2055817A BE2055817A BE853392A BE 853392 A BE853392 A BE 853392A BE 2055817 A BE2055817 A BE 2055817A BE 2055817 A BE2055817 A BE 2055817A BE 853392 A BE853392 A BE 853392A
Authority
BE
Belgium
Prior art keywords
high pressure
pressure mercury
discharge lamps
mercury vapor
vapor discharge
Prior art date
Application number
BE2055817A
Other languages
English (en)
Inventor
W M Keeffe
F Koury
Original Assignee
Gte Sylvania Inc
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 Gte Sylvania Inc filed Critical Gte Sylvania Inc
Publication of BE853392A publication Critical patent/BE853392A/fr

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
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0735—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0737—Main electrodes for high-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material
BE2055817A 1976-04-09 1977-04-08 Perfectionnements aux lampes a decharge a vapeur de mercure a haute pression BE853392A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/675,433 US4044276A (en) 1976-04-09 1976-04-09 High pressure mercury vapor discharge lamp having improved electrodes

Publications (1)

Publication Number Publication Date
BE853392A true BE853392A (fr) 1977-08-01

Family

ID=24710471

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2055817A BE853392A (fr) 1976-04-09 1977-04-08 Perfectionnements aux lampes a decharge a vapeur de mercure a haute pression

Country Status (7)

Country Link
US (1) US4044276A (fr)
JP (1) JPS52146070A (fr)
BE (1) BE853392A (fr)
DE (1) DE2714539A1 (fr)
FR (1) FR2347774A1 (fr)
GB (1) GB1558098A (fr)
NL (1) NL182680C (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6034223B2 (ja) * 1980-06-18 1985-08-07 株式会社東芝 金属蒸気放電灯
US4445067A (en) * 1980-06-18 1984-04-24 Tokyo Shibaura Denki Kabushiki Kaisha High pressure metal vapor discharge lamp with radioactive material impregnated in ceramic
US5001397A (en) * 1985-07-17 1991-03-19 U.S. Philips Corporation High-pressure gas discharge lamp having electrodes with coil layers having interlocking turns
US5111108A (en) * 1990-12-14 1992-05-05 Gte Products Corporation Vapor discharge device with electron emissive material
US5258687A (en) * 1991-06-13 1993-11-02 Gte Products Corporation Mercury vapor discharge device
DE9201256U1 (de) * 1992-02-03 1993-03-04 Heraeus Instruments GmbH, 6450 Hanau Hochdruckgasentladungslampe für Gleichstrombetrieb
DE4202971A1 (de) * 1992-02-03 1993-08-05 Heraeus Instr Gmbh Hochdruckgasentladungslampe fuer gleichstrombetrieb
US5357167A (en) * 1992-07-08 1994-10-18 General Electric Company High pressure discharge lamp with a thermally improved anode
US5550431A (en) * 1995-05-05 1996-08-27 Osram Sylvania Inc. High pressure arc discharge lamp having barium hafnate impregnated electrodes
CN1306554C (zh) * 2004-04-20 2007-03-21 陈宗烈 无灯丝热阴极荧光灯

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL35601C (fr) * 1930-06-16
DE756326C (de) * 1937-02-20 1952-11-17 Ulrich W Doering Elektrische Entladungslampe mit Edelgasgrundfuellung
US2663816A (en) * 1949-09-28 1953-12-22 Sylvania Electric Prod Electric discharge lamp
US2687489A (en) * 1952-06-26 1954-08-24 Hanovia Chemical & Mfg Co Electrode
US2843801A (en) * 1953-01-02 1958-07-15 Krefft Hermann Eduard Electrical discharge lamp
US3134924A (en) * 1960-07-05 1964-05-26 Monsanto Co Emissive materials of a metal matrix with molecularly dispersed additives
US3064157A (en) * 1960-12-19 1962-11-13 Sylvania Electric Prod Lamp and holder assembly
US3249788A (en) * 1961-11-08 1966-05-03 Westinghouse Electric Corp Electrode coating material and discharge device
NL296948A (fr) * 1963-08-21
GB1167157A (en) * 1966-01-08 1969-10-15 Matsushita Electronics Corp Electric Discharge Tube.
GB1173876A (en) * 1967-02-23 1969-12-10 Westinghouse Electric Corp Method of Making Air Stable Cathode for Electric Discharge Device
DE2038645C3 (de) * 1970-08-04 1974-03-21 Robert Bosch Gmbh, 7000 Stuttgart Verwendung von Hafnium-, Zirkonium- und oder Tantalnitrid als Werkstoff für Elektroden
US3656020A (en) * 1970-11-18 1972-04-11 Spectra Mat Inc Thermionic cathode comprising mixture of barium oxide, calcium oxide and lithium oxide
US3922428A (en) * 1972-02-04 1975-11-25 Spectra Mat Inc Thermionic cathode comprising mixture of barium oxide, calcium oxide and samarium oxide
US3886391A (en) * 1973-11-21 1975-05-27 Gte Sylvania Inc Hafnium activated metal halide arc discharge lamp

Also Published As

Publication number Publication date
NL7703705A (nl) 1977-10-11
US4044276A (en) 1977-08-23
DE2714539A1 (de) 1977-10-20
JPS619705B2 (fr) 1986-03-25
JPS52146070A (en) 1977-12-05
GB1558098A (en) 1979-12-19
NL182680C (nl) 1988-04-18
FR2347774B1 (fr) 1982-08-20
FR2347774A1 (fr) 1977-11-04
NL182680B (nl) 1987-11-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GTE SYLVANIA INC.

Effective date: 19910430