JPS548995B2 - - Google Patents

Info

Publication number
JPS548995B2
JPS548995B2 JP7213375A JP7213375A JPS548995B2 JP S548995 B2 JPS548995 B2 JP S548995B2 JP 7213375 A JP7213375 A JP 7213375A JP 7213375 A JP7213375 A JP 7213375A JP S548995 B2 JPS548995 B2 JP S548995B2
Authority
JP
Japan
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
JP7213375A
Other languages
Japanese (ja)
Other versions
JPS5114779A (enrdf_load_stackoverflow
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 filed Critical
Publication of JPS5114779A publication Critical patent/JPS5114779A/ja
Publication of JPS548995B2 publication Critical patent/JPS548995B2/ja
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
    • H01J61/0735—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

Landscapes

  • Discharge Lamp (AREA)
JP7213375A 1974-07-12 1975-06-16 Expired JPS548995B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US488109A US3919581A (en) 1974-07-12 1974-07-12 Thoria-yttria emission mixture for discharge lamps

Publications (2)

Publication Number Publication Date
JPS5114779A JPS5114779A (enrdf_load_stackoverflow) 1976-02-05
JPS548995B2 true JPS548995B2 (enrdf_load_stackoverflow) 1979-04-20

Family

ID=23938360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7213375A Expired JPS548995B2 (enrdf_load_stackoverflow) 1974-07-12 1975-06-16

Country Status (4)

Country Link
US (1) US3919581A (enrdf_load_stackoverflow)
JP (1) JPS548995B2 (enrdf_load_stackoverflow)
DE (1) DE2530076C3 (enrdf_load_stackoverflow)
GB (1) GB1508827A (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL175771B (nl) * 1975-06-20 1984-07-16 Philips Nv Hogedrukgasontladingslamp en een werkwijze voor de vervaardiging hiervan.
JPS5822856B2 (ja) * 1975-12-16 1983-05-11 松下電子工業株式会社 メタルハライドランプ
JPS549833Y1 (enrdf_load_stackoverflow) * 1976-02-07 1979-05-09
JPS5367972A (en) * 1976-11-30 1978-06-16 Mitsubishi Electric Corp Electrode for elctric discharge lamp
JPS53128172A (en) * 1977-04-14 1978-11-08 Toshiba Corp Metal vapor discharge lamp
US4123685A (en) * 1977-10-21 1978-10-31 Westinghouse Electric Corp. HID lamp electrode comprising solid solution of dibarium calcium molybdate and tungstate
DE2951741C2 (de) * 1978-12-29 1984-05-30 Mitsubishi Denki K.K., Tokio/Tokyo Elektrode für eine Entladungslampe
JPS5761238A (en) * 1980-09-30 1982-04-13 Mitsubishi Electric Corp Electron emission substance and production
US5013968A (en) * 1989-03-10 1991-05-07 General Electric Company Reprographic metal halide lamps having long life and maintenance
US4992700A (en) * 1989-03-10 1991-02-12 General Electric Company Reprographic metal halide lamps having high blue emission
US5111108A (en) * 1990-12-14 1992-05-05 Gte Products Corporation Vapor discharge device with electron emissive material
US6157132A (en) * 1998-08-19 2000-12-05 General Electric Company Discharge lamp emission material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460739A (en) * 1946-04-17 1949-02-01 Gen Electric Electrode construction
US3364375A (en) * 1963-10-25 1968-01-16 Gen Electric Metal vapor lamp thorium coated electrode
US3372297A (en) * 1964-09-28 1968-03-05 Varian Associates High frequency electron discharge devices and thermionic cathodes having improved (cvd) refractory insulation coated heater wires
US3485343A (en) * 1967-08-28 1969-12-23 Gen Electric Oxygen getter for high pressure sodium vapor lamp
US3530327A (en) * 1968-03-11 1970-09-22 Westinghouse Electric Corp Metal halide discharge lamps with rare-earth metal oxide used as electrode emission material

Also Published As

Publication number Publication date
US3919581A (en) 1975-11-11
GB1508827A (en) 1978-04-26
JPS5114779A (enrdf_load_stackoverflow) 1976-02-05
DE2530076C3 (de) 1979-03-29
DE2530076A1 (de) 1976-02-12
DE2530076B2 (de) 1978-07-27

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