GB1353683A - Discharge lamp having cavity electrodes - Google Patents

Discharge lamp having cavity electrodes

Info

Publication number
GB1353683A
GB1353683A GB1707271A GB1353683DA GB1353683A GB 1353683 A GB1353683 A GB 1353683A GB 1707271 A GB1707271 A GB 1707271A GB 1353683D A GB1353683D A GB 1353683DA GB 1353683 A GB1353683 A GB 1353683A
Authority
GB
United Kingdom
Prior art keywords
cavity
shield
metal
tight
work function
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
GB1707271A
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 GB1353683A publication Critical patent/GB1353683A/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)
GB1707271A 1970-05-25 1971-05-25 Discharge lamp having cavity electrodes Expired GB1353683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4013470A 1970-05-25 1970-05-25

Publications (1)

Publication Number Publication Date
GB1353683A true GB1353683A (en) 1974-05-22

Family

ID=21909301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1707271A Expired GB1353683A (en) 1970-05-25 1971-05-25 Discharge lamp having cavity electrodes

Country Status (6)

Country Link
US (1) US3619699A (enrdf_load_stackoverflow)
JP (1) JPS5133356B1 (enrdf_load_stackoverflow)
BE (1) BE767484A (enrdf_load_stackoverflow)
DE (1) DE2125444A1 (enrdf_load_stackoverflow)
FR (1) FR2093722A5 (enrdf_load_stackoverflow)
GB (1) GB1353683A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173943A (en) * 1985-04-18 1986-10-22 Noblelight Limited Improvements in and relating to cathodes

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989973A (en) * 1971-01-02 1976-11-02 Siemens Aktiengesellschaft Cold-cathode gas-discharge device
US3809943A (en) * 1973-04-19 1974-05-07 Gen Electric High intensity discharge lamp electrode
US3988629A (en) * 1974-10-07 1976-10-26 General Electric Company Thermionic wick electrode for discharge lamps
US4321503A (en) * 1978-11-06 1982-03-23 Westinghouse Electric Corp. HID Lamp electrode comprising barium-calcium niobate or tantalate
US4436762A (en) 1982-07-26 1984-03-13 Gte Laboratories Incorporated Low pressure plasma discharge formation of refractory coatings
JPH04174951A (ja) * 1990-07-19 1992-06-23 Tokyo Densoku Kk 放電管
EP0988701A1 (en) * 1998-04-20 2000-03-29 Koninklijke Philips Electronics N.V. Timing circuit
JP3324584B2 (ja) * 1999-10-20 2002-09-17 松下電器産業株式会社 放電灯の製造方法
DE10301478A1 (de) * 2003-01-16 2004-07-29 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektrode für eine Hochdruckentladungslampe
US20060049762A1 (en) * 2004-09-03 2006-03-09 Koch Mark E Night-vision illumination lamp
RU2278442C1 (ru) * 2005-03-17 2006-06-20 Виктор Иванович Цай Газоразрядная лампа
RU2278441C1 (ru) * 2005-03-17 2006-06-20 Виктор Иванович Цай Электрод газоразрядной лампы
US20090128039A1 (en) * 2005-04-27 2009-05-21 Koninklijke Philips Electronics, N.V. Discharge Lamp with Electrode Made Of Tungsten Alloy Comprising < 3 Wt.% Of Rhenium
JP4725389B2 (ja) * 2006-03-29 2011-07-13 ウシオ電機株式会社 高圧放電ランプ
US8460045B2 (en) 2007-06-25 2013-06-11 General Electric Company High intensity discharge lamp with enhanced dimming characteristcs
JP2010232023A (ja) * 2009-03-27 2010-10-14 Ushio Inc ショートアーク型放電ランプ
US8525430B2 (en) * 2009-06-09 2013-09-03 Topanga Technologies, Inc. Helical structure and method for plasma lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029359A (en) * 1960-03-29 1962-04-10 Gen Electric Thermionic electrode for discharge lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173943A (en) * 1985-04-18 1986-10-22 Noblelight Limited Improvements in and relating to cathodes

Also Published As

Publication number Publication date
BE767484A (fr) 1971-11-22
DE2125444A1 (enrdf_load_stackoverflow) 1971-12-09
FR2093722A5 (enrdf_load_stackoverflow) 1972-01-28
JPS5133356B1 (enrdf_load_stackoverflow) 1976-09-18
US3619699A (en) 1971-11-09

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Legal Events

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