ES303281A1 - Electrode device covered with electron emittering material for gas discharge lamps. (Machine-translation by Google Translate, not legally binding) - Google Patents

Electrode device covered with electron emittering material for gas discharge lamps. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES303281A1
ES303281A1 ES0303281A ES303281A ES303281A1 ES 303281 A1 ES303281 A1 ES 303281A1 ES 0303281 A ES0303281 A ES 0303281A ES 303281 A ES303281 A ES 303281A ES 303281 A1 ES303281 A1 ES 303281A1
Authority
ES
Spain
Prior art keywords
coil
electron
discharge lamps
translation
machine
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
Application number
ES0303281A
Other languages
Spanish (es)
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 ES303281A1 publication Critical patent/ES303281A1/en
Expired 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
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode

Landscapes

  • Discharge Lamp (AREA)

Abstract

Electrode device covered with electron emitting material for gas discharge lamps ignited by means of an incandescent discharge, more particularly for high pressure mercury vapor discharge lamps, comprising a double spiral coil of tungsten wire which is provided around and supported by a central core wire, the coil core wire protruding on the discharge side, characterized in that the coil wire of the double coil is thin with respect to the core wire, which the coils of the coil The first winding of the double-coil winding is not in contact with each other, and the electron-emitting material is located substantially within the first winding of the double-coil winding. (Machine-translation by Google Translate, not legally binding)
ES0303281A 1963-08-21 1964-08-19 Electrode device covered with electron emittering material for gas discharge lamps. (Machine-translation by Google Translate, not legally binding) Expired ES303281A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL296948 1963-08-21

Publications (1)

Publication Number Publication Date
ES303281A1 true ES303281A1 (en) 1965-05-16

Family

ID=19754974

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0303281A Expired ES303281A1 (en) 1963-08-21 1964-08-19 Electrode device covered with electron emittering material for gas discharge lamps. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
AT (1) AT268455B (en)
BE (1) BE652024A (en)
CH (1) CH422988A (en)
DE (1) DE1639510B1 (en)
ES (1) ES303281A1 (en)
FR (1) FR1404994A (en)
GB (1) GB1014340A (en)
NL (1) NL296948A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044276A (en) * 1976-04-09 1977-08-23 Gte Sylvania Incorporated High pressure mercury vapor discharge lamp having improved electrodes
US4105908A (en) * 1976-04-30 1978-08-08 General Electric Company Metal halide lamp having open tungsten coil electrodes
US4340836A (en) * 1978-09-11 1982-07-20 General Electric Company Electrode for miniature high pressure metal halide lamp
GB2043331B (en) * 1978-12-26 1982-11-17 Gen Electric Electrode for high pressure metal-vapour lamp
US4310773A (en) * 1979-05-16 1982-01-12 General Electric Company Glass flash tube
US4277714A (en) * 1979-07-02 1981-07-07 Gte Products Corporation Metal halide arc discharge lamp having coiled coil electrodes
KR101206681B1 (en) * 2011-07-13 2012-12-03 (주) 상일시스템 Cold cathode fluorescent lamp of high efficiency and long life for illumination

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733853A (en) * 1950-12-18 1955-07-20 Hermann Eduard Krefft Improvements in or relating to electrodes for gaseous discharge lamps
GB792365A (en) * 1953-07-10 1958-03-26 Sylvania Electric Prod Improvements in and relating to electric discharge devices
US2935637A (en) * 1957-03-05 1960-05-03 Thomas M Cortese Fluorescent lamp
NL99793C (en) * 1957-08-10 1961-11-15

Also Published As

Publication number Publication date
NL296948A (en)
FR1404994A (en) 1965-07-02
CH422988A (en) 1966-10-31
GB1014340A (en) 1965-12-22
BE652024A (en) 1965-02-19
DE1639510B1 (en) 1969-12-04
AT268455B (en) 1969-02-10

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