GB1508827A - Emission mixtures for discharge lamps - Google Patents

Emission mixtures for discharge lamps

Info

Publication number
GB1508827A
GB1508827A GB21483/75A GB2148375A GB1508827A GB 1508827 A GB1508827 A GB 1508827A GB 21483/75 A GB21483/75 A GB 21483/75A GB 2148375 A GB2148375 A GB 2148375A GB 1508827 A GB1508827 A GB 1508827A
Authority
GB
United Kingdom
Prior art keywords
tho2
ignited
coated
lines
oxalates
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
GB21483/75A
Other languages
English (en)
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1508827A publication Critical patent/GB1508827A/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
    • H01J61/0735—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)
GB21483/75A 1974-07-12 1975-05-20 Emission mixtures for discharge lamps Expired GB1508827A (en)

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 (1)

Publication Number Publication Date
GB1508827A true GB1508827A (en) 1978-04-26

Family

ID=23938360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21483/75A Expired GB1508827A (en) 1974-07-12 1975-05-20 Emission mixtures for discharge lamps

Country Status (4)

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

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 (nl) * 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
US4992700A (en) * 1989-03-10 1991-02-12 General Electric Company Reprographic metal halide lamps having high blue emission
US5013968A (en) * 1989-03-10 1991-05-07 General Electric Company Reprographic metal halide lamps having long life and maintenance
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
JPS5114779A (nl) 1976-02-05
DE2530076A1 (de) 1976-02-12
DE2530076C3 (de) 1979-03-29
US3919581A (en) 1975-11-11
JPS548995B2 (nl) 1979-04-20
DE2530076B2 (de) 1978-07-27

Similar Documents

Publication Publication Date Title
GB1508827A (en) Emission mixtures for discharge lamps
GB1537104A (en) Arc-discharge devices
GB1466588A (en) High pressure mercury vapour discharge lamps
GB1498258A (en) High pressure mercury vapour discharge lamp
GB1193057A (en) Metal Halide Additive Mercury Arc Discharge Lamps.
GB1330045A (en) Small-sized fluorescent lamp
GB1505142A (en) High current low pressure discharge device
GB1060350A (en) Improvements in or relating to high pressure mercury vapour electric discharge lamps
GB1222834A (en) Photochemical wavelength-emitting lamps
GB1462955A (en) Discharge lamp
GB1042183A (en) Mercury vapour discharge lamps
GB1248157A (en) Metallic vapor arc-lamp
GB1531280A (en) Metal halide lamps
US2840751A (en) Electrode coating composition and electrode for cold cathode gas discharge lamp
GB1337134A (en) Metal halide lamp
GB1497311A (en) Electric discharge lamp operable in the open air
GB1289166A (nl)
GB995419A (en) An electric discharge lamp
GB1405153A (en) 40 watt fluorescent lamp
GB1309337A (en) Arc tubes
GB1427598A (en) High intensity metal vapour lamp
GB1052612A (nl)
GB1393673A (en) Electrodeless discharge devices
GB1477487A (en) High pressure sodium-vapour discharge lamp
IT1068408B (it) Perfezionato precesso di conversione atto a produrre composizioni ricche di ossido di uranio

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee