EP0085487A3 - Improvements in discharge lamps - Google Patents

Improvements in discharge lamps Download PDF

Info

Publication number
EP0085487A3
EP0085487A3 EP83300141A EP83300141A EP0085487A3 EP 0085487 A3 EP0085487 A3 EP 0085487A3 EP 83300141 A EP83300141 A EP 83300141A EP 83300141 A EP83300141 A EP 83300141A EP 0085487 A3 EP0085487 A3 EP 0085487A3
Authority
EP
European Patent Office
Prior art keywords
discharge lamps
lamps
discharge
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.)
Granted
Application number
EP83300141A
Other versions
EP0085487B1 (en
EP0085487A2 (en
Inventor
James Richard Coaton
Barry Preston
Kevin Hick
Frederick James Leyland Crammond
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.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Publication of EP0085487A2 publication Critical patent/EP0085487A2/en
Publication of EP0085487A3 publication Critical patent/EP0085487A3/en
Application granted granted Critical
Publication of EP0085487B1 publication Critical patent/EP0085487B1/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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
EP83300141A 1982-01-29 1983-01-12 Improvements in discharge lamps Expired EP0085487B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8202526 1982-01-29
GB8202526 1982-01-29

Publications (3)

Publication Number Publication Date
EP0085487A2 EP0085487A2 (en) 1983-08-10
EP0085487A3 true EP0085487A3 (en) 1983-08-17
EP0085487B1 EP0085487B1 (en) 1988-11-09

Family

ID=10527958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300141A Expired EP0085487B1 (en) 1982-01-29 1983-01-12 Improvements in discharge lamps

Country Status (4)

Country Link
EP (1) EP0085487B1 (en)
AU (1) AU563791B2 (en)
DE (1) DE3378445D1 (en)
ZA (1) ZA83585B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491766A (en) * 1982-06-24 1985-01-01 North American Philips Lighting Corporation High pressure electric discharge lamp employing a metal spiral with positive potential
GB8330774D0 (en) * 1983-11-18 1983-12-29 Emi Plc Thorn Sealed beam lamps
DE9013279U1 (en) * 1990-09-19 1990-11-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Single-ended high-pressure discharge lamp
JP3208087B2 (en) * 1997-04-18 2001-09-10 松下電器産業株式会社 Metal halide lamp
DE102010029068A1 (en) * 2010-05-18 2011-11-24 Osram Gesellschaft mit beschränkter Haftung Method for producing a high voltage switching spark gap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB804319A (en) * 1954-06-04 1958-11-12 Siemens Edison Swan Ltd Improvements relating to electronic flash discharge tubes
FR2256530A1 (en) * 1973-12-28 1975-07-25 Matsushita Electronics Corp
US4179640A (en) * 1977-12-05 1979-12-18 Westinghouse Electric Corp. Hid sodium lamp which incorporates a high pressure of xenon and a trigger starting electrode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB804319A (en) * 1954-06-04 1958-11-12 Siemens Edison Swan Ltd Improvements relating to electronic flash discharge tubes
FR2256530A1 (en) * 1973-12-28 1975-07-25 Matsushita Electronics Corp
US4179640A (en) * 1977-12-05 1979-12-18 Westinghouse Electric Corp. Hid sodium lamp which incorporates a high pressure of xenon and a trigger starting electrode

Also Published As

Publication number Publication date
AU563791B2 (en) 1987-07-23
EP0085487B1 (en) 1988-11-09
ZA83585B (en) 1983-11-30
DE3378445D1 (en) 1988-12-15
AU1055383A (en) 1983-08-04
EP0085487A2 (en) 1983-08-10

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