GB1462955A - Discharge lamp - Google Patents

Discharge lamp

Info

Publication number
GB1462955A
GB1462955A GB1928174A GB1928174A GB1462955A GB 1462955 A GB1462955 A GB 1462955A GB 1928174 A GB1928174 A GB 1928174A GB 1928174 A GB1928174 A GB 1928174A GB 1462955 A GB1462955 A GB 1462955A
Authority
GB
United Kingdom
Prior art keywords
electrodes
metal
rare earth
earth metal
filling
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
GB1928174A
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.)
Iwasaki Denki KK
Original Assignee
Iwasaki Denki KK
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 Iwasaki Denki KK filed Critical Iwasaki Denki KK
Publication of GB1462955A publication Critical patent/GB1462955A/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)
GB1928174A 1973-05-10 1974-05-02 Discharge lamp Expired GB1462955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5117373A JPS5416671B2 (nl) 1973-05-10 1973-05-10

Publications (1)

Publication Number Publication Date
GB1462955A true GB1462955A (en) 1977-01-26

Family

ID=12879429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1928174A Expired GB1462955A (en) 1973-05-10 1974-05-02 Discharge lamp

Country Status (5)

Country Link
US (1) US3914636A (nl)
JP (1) JPS5416671B2 (nl)
DE (1) DE2422576C3 (nl)
GB (1) GB1462955A (nl)
NL (1) NL182602C (nl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107682A (ja) * 1975-03-19 1976-09-24 Iwasaki Electric Co Ltd Kinzokujokihodento
JPS5416869A (en) * 1976-10-26 1979-02-07 Japan Storage Battery Co Ltd Metallic vapor discharge lamp
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
JPS5710654Y2 (nl) * 1979-10-22 1982-03-02
GB2079036A (en) * 1980-06-20 1982-01-13 Gen Electric Electron emitting coating in metal halide arc lamp
DE4327534A1 (de) * 1993-08-16 1995-02-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metallhalogenidentladungslampe für fotooptische Zwecke
JP3269976B2 (ja) * 1996-10-07 2002-04-02 ウシオ電機株式会社 高圧紫外線水銀ランプ
WO2007026288A2 (en) * 2005-09-02 2007-03-08 Philips Intellectual Property & Standards Gmbh High-pressure gas discharge lamp
EP2476133B1 (en) * 2009-09-10 2016-09-07 Philips Lighting Holding B.V. High intensity discharge lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
NL7406360A (nl) 1974-11-12
JPS501573A (nl) 1975-01-09
JPS5416671B2 (nl) 1979-06-23
US3914636A (en) 1975-10-21
DE2422576B2 (de) 1979-03-22
NL182602C (nl) 1988-04-05
DE2422576C3 (de) 1979-11-15
NL182602B (nl) 1987-11-02
DE2422576A1 (de) 1974-11-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19940501