WO2009027921A3 - Ignition unit for igniting a discharge lamp - Google Patents

Ignition unit for igniting a discharge lamp Download PDF

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Publication number
WO2009027921A3
WO2009027921A3 PCT/IB2008/053398 IB2008053398W WO2009027921A3 WO 2009027921 A3 WO2009027921 A3 WO 2009027921A3 IB 2008053398 W IB2008053398 W IB 2008053398W WO 2009027921 A3 WO2009027921 A3 WO 2009027921A3
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
discharge lamp
discharge
ignition unit
igniting
Prior art date
Application number
PCT/IB2008/053398
Other languages
French (fr)
Other versions
WO2009027921A2 (en
Inventor
Pavel Pekarski
Carsten Deppe
Original Assignee
Philips Intellectual Property
Koninkl Philips Electronics Nv
Pavel Pekarski
Carsten Deppe
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 Philips Intellectual Property, Koninkl Philips Electronics Nv, Pavel Pekarski, Carsten Deppe filed Critical Philips Intellectual Property
Publication of WO2009027921A2 publication Critical patent/WO2009027921A2/en
Publication of WO2009027921A3 publication Critical patent/WO2009027921A3/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

An ignition unit (3) for igniting a discharge lamp (1), especially a high intensity discharge (HID) lamp or an ultra high intensity discharge (UHP) lamp, and a switch unit, which especially can be manually operated by a user, for switching on a discharge lamp is disclosed. Furthermore, a circuit arrangement for operating such a discharge lamp (1) comprising a lamp driver (21) and an ignition unit (3), and a discharge lamp unit comprising a discharge lamp (1) or lamp burner, preferably a reflector and such a circuit arrangement is described, which advantageously can be used due to a small volume and a small weight for example in ultra bright torches like Ujoy® torches or Ujoy® lamps or Ujoy® projection systems.
PCT/IB2008/053398 2007-08-29 2008-08-25 Ignition unit for igniting a discharge lamp WO2009027921A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07115232.6 2007-08-29
EP07115232 2007-08-29

Publications (2)

Publication Number Publication Date
WO2009027921A2 WO2009027921A2 (en) 2009-03-05
WO2009027921A3 true WO2009027921A3 (en) 2009-04-30

Family

ID=40342648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/053398 WO2009027921A2 (en) 2007-08-29 2008-08-25 Ignition unit for igniting a discharge lamp

Country Status (1)

Country Link
WO (1) WO2009027921A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE673992C (en) * 1937-03-09 1939-04-01 Patra Patent Treuhand Ignition device for electric discharge lamps
US3758815A (en) * 1972-01-04 1973-09-11 Gte Sylvania Inc Supplemental energy storage circuit for arc discharge lamps
US4082985A (en) * 1976-02-10 1978-04-04 U.S. Philips Corporation Gas discharge flash lamp with piezoelectric trigger generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE673992C (en) * 1937-03-09 1939-04-01 Patra Patent Treuhand Ignition device for electric discharge lamps
US3758815A (en) * 1972-01-04 1973-09-11 Gte Sylvania Inc Supplemental energy storage circuit for arc discharge lamps
US4082985A (en) * 1976-02-10 1978-04-04 U.S. Philips Corporation Gas discharge flash lamp with piezoelectric trigger generator

Also Published As

Publication number Publication date
WO2009027921A2 (en) 2009-03-05

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