FR2440613A1 - Lampe a decharge a electrodes protegees - Google Patents

Lampe a decharge a electrodes protegees

Info

Publication number
FR2440613A1
FR2440613A1 FR7926781A FR7926781A FR2440613A1 FR 2440613 A1 FR2440613 A1 FR 2440613A1 FR 7926781 A FR7926781 A FR 7926781A FR 7926781 A FR7926781 A FR 7926781A FR 2440613 A1 FR2440613 A1 FR 2440613A1
Authority
FR
France
Prior art keywords
discharge lamp
screen
tube
lamp
electrode
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.)
Granted
Application number
FR7926781A
Other languages
English (en)
Other versions
FR2440613B3 (fr
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.)
GTE Sylvania Inc
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 FR2440613A1 publication Critical patent/FR2440613A1/fr
Application granted granted Critical
Publication of FR2440613B3 publication Critical patent/FR2440613B3/fr
Granted legal-status Critical Current

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

Abstract

L'INVENTION PERMET D'EVITER LE TERNISSEMENT DE LA PAROI DU TUBE, TERNISSEMENT DONT RESULTE UNE DIMINUTION RAPIDE DU RENDEMENT LUMINEUX DES LAMPES. SELON LA PRESENTE INVENTION, UN ECRAN EST DISPOSE AUTOUR DE CHAQUE ELECTRODE DE MANIERE A NE PAS ABAISSER LA TEMPERATURE DU POINT FROID DU TUBE. DE PREFERENCE, L'ECRAN EST ISOLE ELECTRIQUEMENT DE L'ELECTRODE LORS DU FONCTIONNEMENT NORMAL DE LA LAMPE, ET AFFECTE LA FORME D'UN TRONC DE CONE. APPLICATION : LAMPE A DECHARGE A ARC A VAPEUR D'HALOGENE DE METAL.
FR7926781A 1978-11-02 1979-10-29 Lampe a decharge a electrodes protegees Granted FR2440613A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/956,950 US4383197A (en) 1978-11-02 1978-11-02 Metal halide arc discharge lamp having shielded electrode

Publications (2)

Publication Number Publication Date
FR2440613A1 true FR2440613A1 (fr) 1980-05-30
FR2440613B3 FR2440613B3 (fr) 1981-08-14

Family

ID=25498888

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7926781A Granted FR2440613A1 (fr) 1978-11-02 1979-10-29 Lampe a decharge a electrodes protegees

Country Status (7)

Country Link
US (1) US4383197A (fr)
BE (1) BE879747A (fr)
CA (1) CA1149001A (fr)
DE (1) DE2943813A1 (fr)
FR (1) FR2440613A1 (fr)
GB (1) GB2042792B (fr)
NL (1) NL7908006A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0164803A1 (fr) * 1984-06-12 1985-12-18 Koninklijke Philips Electronics N.V. Lampe à décharge à sodium à haute pression

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739227A (en) * 1986-09-26 1988-04-19 General Electric Company Fluorescent lamp dimming over large light output range
HUT58428A (en) * 1990-07-20 1992-02-28 Samsung Electronic Devices Metal-halide lamp
MXPA06005142A (es) * 2003-11-10 2007-01-26 Inoflate Llc Metodo y dispositivo para presurizar envases.
US7893617B2 (en) * 2006-03-01 2011-02-22 General Electric Company Metal electrodes for electric plasma discharge devices

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR769133A (fr) * 1933-02-17 1934-08-20 Quarzlampen Gmbh Tubes à décharge à gaz ou à vapeur, avec une ou plusieurs électrodes portées à température élevée en cours de fonctionnement
US2725495A (en) * 1951-06-04 1955-11-29 Westinghouse Electric Corp Discharge lamp
US2812465A (en) * 1954-05-10 1957-11-05 Kenneth J Germeshausen Gaseous-discharge device
US3109952A (en) * 1962-03-15 1963-11-05 Norman C Beese High intensity short arc lamp having an annular cathode shield
NL162244C (nl) * 1970-12-25 1980-04-15 Philips Nv Lagedrukkwikdampontladingslamp.
US3761758A (en) * 1972-01-27 1973-09-25 Gte Sylvania Inc Metal halide lamp containing mercury, light emitting metal, sodium and another alkali metal
US4056751A (en) * 1976-03-22 1977-11-01 Gte Sylvania Incorporated Metal halide discharge lamp having optimum electrode location
US4056750A (en) * 1976-12-17 1977-11-01 Gte Sylvania Incorporated Mercury dispenser for discharge lamps
US4117374A (en) * 1976-12-23 1978-09-26 General Electric Company Fluorescent lamp with opposing inversere cone electrodes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0164803A1 (fr) * 1984-06-12 1985-12-18 Koninklijke Philips Electronics N.V. Lampe à décharge à sodium à haute pression

Also Published As

Publication number Publication date
NL7908006A (nl) 1980-05-07
GB2042792B (en) 1982-12-01
US4383197A (en) 1983-05-10
CA1149001A (fr) 1983-06-28
DE2943813A1 (de) 1980-05-14
DE2943813C2 (fr) 1989-03-09
GB2042792A (en) 1980-09-24
FR2440613B3 (fr) 1981-08-14
BE879747A (fr) 1980-02-15

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Legal Events

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