ZA848942B - Sealed beam lamps - Google Patents

Sealed beam lamps

Info

Publication number
ZA848942B
ZA848942B ZA848942A ZA848942A ZA848942B ZA 848942 B ZA848942 B ZA 848942B ZA 848942 A ZA848942 A ZA 848942A ZA 848942 A ZA848942 A ZA 848942A ZA 848942 B ZA848942 B ZA 848942B
Authority
ZA
South Africa
Prior art keywords
sealed beam
beam lamps
lamps
sealed
Prior art date
Application number
ZA848942A
Other languages
English (en)
Inventor
Kevin Hick
Original Assignee
Emi Plc Thorn
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 Emi Plc Thorn filed Critical Emi Plc Thorn
Publication of ZA848942B publication Critical patent/ZA848942B/xx

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
    • H01J61/045—Thermic screens or reflectors
    • 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
ZA848942A 1983-11-18 1984-11-16 Sealed beam lamps ZA848942B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838330774A GB8330774D0 (en) 1983-11-18 1983-11-18 Sealed beam lamps

Publications (1)

Publication Number Publication Date
ZA848942B true ZA848942B (en) 1985-11-27

Family

ID=10551956

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA848942A ZA848942B (en) 1983-11-18 1984-11-16 Sealed beam lamps

Country Status (5)

Country Link
US (1) US4677343A (fr)
EP (1) EP0145291B1 (fr)
DE (1) DE3474244D1 (fr)
GB (1) GB8330774D0 (fr)
ZA (1) ZA848942B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349045A1 (fr) * 1988-06-29 1990-01-03 Philips Electronics North America Corporation Structure de support pour tube à décharge de sodium à haute pression
US5013968A (en) * 1989-03-10 1991-05-07 General Electric Company Reprographic metal halide lamps having long life and maintenance
JP2002231473A (ja) * 2001-01-30 2002-08-16 Phoenix Denki Kk 放電灯の点灯始動方法と放電灯点灯回路及び該回路を利用した光源装置並びに該光源装置を具備した光学機器
US7307376B2 (en) * 2004-01-30 2007-12-11 Hewlett-Packard Development Company, L.P. Reflector assembly with a startup element
DE102010029068A1 (de) * 2010-05-18 2011-11-24 Osram Gesellschaft mit beschränkter Haftung Verfahren zum Herstellen einer Hochspannungsschaltfunkenstrecke
JP5392639B1 (ja) * 2012-08-28 2014-01-22 岩崎電気株式会社 シールドビーム形放電ランプ

Family Cites Families (14)

* 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
DE2143690C3 (de) * 1971-09-01 1975-10-02 Siegfried 5800 Hagen Freitag Funkenstrecke in Zündgeräten für Gasentladungslampen
US3758819A (en) * 1971-12-27 1973-09-11 Scient Instr Inc Flash discharge apparatus and method
US3900753A (en) * 1974-05-23 1975-08-19 Gte Sylvania Inc High pressure sodium vapor lamp having low starting voltage
JPS5267175A (en) * 1975-12-02 1977-06-03 Iwasaki Electric Co Ltd High voltage discharge lamp containing starter circuit
US4138621A (en) * 1977-06-27 1979-02-06 General Electric Company Short-arc discharge lamp with starting device
JPS5454468A (en) * 1977-10-11 1979-04-28 Iwasaki Electric Co Ltd Metal vapor discharge lamp
US4205258A (en) * 1979-03-21 1980-05-27 Westinghouse Electric Corp. Internal shorting fuse for a high-intensity discharge lamp
US4439707A (en) * 1980-07-23 1984-03-27 Nippon Soken, Inc. Spark plug with a wide discharge gap
US4388557A (en) * 1981-03-16 1983-06-14 Gte Products Corporation High intensity discharge lamp including arc extinguishing means
DE3378445D1 (en) * 1982-01-29 1988-12-15 Emi Plc Thorn Improvements in discharge lamps
US4445073A (en) * 1982-03-22 1984-04-24 Gte Products Corporation Intimate contact starting aid for arc lamps
US4465954A (en) * 1982-05-10 1984-08-14 Gte Products Corporation Discharge lamp starting and operating circuit
GB2349382A (en) * 1999-04-27 2000-11-01 Secr Defence Ceramic materials; superconductors

Also Published As

Publication number Publication date
EP0145291B1 (fr) 1988-09-21
US4677343A (en) 1987-06-30
DE3474244D1 (en) 1988-10-27
EP0145291A1 (fr) 1985-06-19
GB8330774D0 (en) 1983-12-29

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