NL272981A - - Google Patents

Info

Publication number
NL272981A
NL272981A NL272981DA NL272981A NL 272981 A NL272981 A NL 272981A NL 272981D A NL272981D A NL 272981DA NL 272981 A NL272981 A NL 272981A
Authority
NL
Netherlands
Application number
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.)
Publication of NL272981A publication Critical patent/NL272981A/xx

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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
NL272981D 1961-01-02 NL272981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP26325A DE1187730B (en) 1961-01-02 1961-01-02 Electrode for gas and / or vapor discharge lamps

Publications (1)

Publication Number Publication Date
NL272981A true NL272981A (en)

Family

ID=7370418

Family Applications (1)

Application Number Title Priority Date Filing Date
NL272981D NL272981A (en) 1961-01-02

Country Status (6)

Country Link
US (1) US3244929A (en)
BE (1) BE612125A (en)
CH (1) CH401261A (en)
DE (1) DE1187730B (en)
GB (1) GB953023A (en)
NL (1) NL272981A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1541026B2 (en) * 1966-12-14 1971-08-19 Philips Patentverwaltung Gmbh, 2000 Hamburg CIRCULAR CYLINDER CATHOD FOR A MAGNETIC TUBE
US3548242A (en) * 1967-05-16 1970-12-15 Sylvania Electric Prod High pressure electric discharge device and cathode
US3558964A (en) * 1968-10-21 1971-01-26 Gen Electric High current thermionic hollow cathode lamp
DE2245717A1 (en) * 1972-09-18 1974-03-28 Patra Patent Treuhand ELECTRODE WITH A POROUS SINTER BODY
JPS5241736Y2 (en) * 1973-01-05 1977-09-21
ZA744074B (en) * 1973-07-23 1975-06-25 Siemens Ag Improvements in or relating to a mass for a high-temperature-resistant emission electrode and process for the production of said mass
HU179748B (en) * 1974-01-15 1982-12-28 Ferenc Puskas Cathode of a metal ceramic sintered body produced by dust metalurgy for closing discharge tube of sodium vapour lamp and process for the production thereof
US4097762A (en) * 1975-08-14 1978-06-27 International Telephone & Telegraph Corporation Xenon arc discharge lamp having a particular electrode composition and wherein the arc discharge is obtained without heating the electrode
JPS5523813U (en) * 1978-07-26 1980-02-15
FR2494035A1 (en) * 1980-11-07 1982-05-14 Thomson Csf THERMO-ELECTRONIC CATHODE FOR MICROFREQUENCY TUBE AND TUBE INCORPORATING SUCH A CATHODE
DE4114487A1 (en) * 1991-05-03 1992-11-05 Wilhelm Dr Ing Ziegenbein High-output hot cathode for electronic appts. - has tantalum@ support to which tungsten-thorium pieces are applied
US5847498A (en) * 1994-12-23 1998-12-08 Philips Electronics North America Corporation Multiple layer composite electrodes for discharge lamps
GB9525776D0 (en) * 1995-12-16 1996-02-14 Heraeus Noblelight Limited Improved lamp construction
DE19652822A1 (en) 1996-12-18 1998-06-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Sintered electrode
DE19757152C2 (en) * 1997-12-20 2002-10-31 Thomas Eggers Electrode for discharge lamps
JP2007095665A (en) * 2005-09-02 2007-04-12 Sony Corp Short-arc type high-pressure discharge electrode, short-arc type high-pressure discharge tube, short-arc type high-pressure discharge light source device and their manufacturing methods
JP4725389B2 (en) * 2006-03-29 2011-07-13 ウシオ電機株式会社 High pressure discharge lamp
JP5247718B2 (en) * 2006-12-18 2013-07-24 オスラム ゲーエムベーハー Discharge lamp electrode
DE102013203738A1 (en) * 2013-03-05 2014-09-11 Von Ardenne Gmbh Gas discharge lamp and method for its control

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE295395C (en) *
US1520794A (en) * 1921-06-03 1924-12-30 Frederick W Zons Refractory alloy for wires and rods
US1922244A (en) * 1930-09-13 1933-08-15 Fansteel Prod Co Inc Electrode and method of making the same
DE692702C (en) * 1934-09-15 1940-06-25 Osram G M B H Komm Ges Electric discharge vessel, in particular electric metal vapor lamp, with a discharge-heated electrode
US2202108A (en) * 1937-07-13 1940-05-28 Company Fidelity Union Trust Refractory metal composition
US2185410A (en) * 1938-09-30 1940-01-02 Rca Corp Metal compositions
BE463969A (en) * 1940-11-25
DE968579C (en) * 1941-09-02 1958-03-06 Felix Mueller Dr Ing High pressure electric discharge tubes for lighting and radiation purposes
US2492142A (en) * 1945-10-17 1949-12-27 Kenneth J Germeshausen Electric system embodying coldcathode gaseous discharge device
US2460738A (en) * 1946-04-17 1949-02-01 Gen Electric Electrode construction
US2473550A (en) * 1947-08-19 1949-06-21 Raytheon Mfg Co Directly heated cathode
DE929379C (en) * 1949-07-01 1955-06-27 Lumalampan Ab Electrode for electric low-pressure discharge tubes
US2886737A (en) * 1949-11-11 1959-05-12 Fruengel Frank Quick-responsive spark gap device
AT176613B (en) * 1951-07-17 1953-11-10 Philips Nv Supply cathode
DE971276C (en) * 1952-02-12 1958-12-31 Siemens Ag Process for the production of a cathode for electrical discharge vessels

Also Published As

Publication number Publication date
DE1187730B (en) 1965-02-25
GB953023A (en) 1964-03-25
CH401261A (en) 1965-10-31
US3244929A (en) 1966-04-05
BE612125A (en) 1962-04-16

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