WO2008068673A3 - Flashlight with adjustable light output - Google Patents

Flashlight with adjustable light output Download PDF

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Publication number
WO2008068673A3
WO2008068673A3 PCT/IB2007/054833 IB2007054833W WO2008068673A3 WO 2008068673 A3 WO2008068673 A3 WO 2008068673A3 IB 2007054833 W IB2007054833 W IB 2007054833W WO 2008068673 A3 WO2008068673 A3 WO 2008068673A3
Authority
WO
WIPO (PCT)
Prior art keywords
flashlight
light output
adjustable light
mercury vapour
vapour discharge
Prior art date
Application number
PCT/IB2007/054833
Other languages
French (fr)
Other versions
WO2008068673A2 (en
Inventor
Mark Carpaij
Bernd Engelbrecht
Albert Comberg
Holger Moench
Original Assignee
Philips Intellectual Property
Koninkl Philips Electronics Nv
Mark Carpaij
Bernd Engelbrecht
Albert Comberg
Holger Moench
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, Mark Carpaij, Bernd Engelbrecht, Albert Comberg, Holger Moench filed Critical Philips Intellectual Property
Publication of WO2008068673A2 publication Critical patent/WO2008068673A2/en
Publication of WO2008068673A3 publication Critical patent/WO2008068673A3/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
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light

Abstract

A flashlight comprising a mercury vapour discharge lamp (12) as e.g. a HID Lamp (High Intensity Discharge Lamp) with adjustable light output is described. The extreme brightness and peak intensity of mercury vapour discharge lamps (12) is enabled for signalling in mobile lighting applications without reducing the lifetime of the 5 mercury vapour discharge lamps (12).
PCT/IB2007/054833 2006-12-04 2007-11-29 Flashlight with adjustable light output WO2008068673A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06125336 2006-12-04
EP06125336.5 2006-12-04

Publications (2)

Publication Number Publication Date
WO2008068673A2 WO2008068673A2 (en) 2008-06-12
WO2008068673A3 true WO2008068673A3 (en) 2008-08-14

Family

ID=39243686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/054833 WO2008068673A2 (en) 2006-12-04 2007-11-29 Flashlight with adjustable light output

Country Status (1)

Country Link
WO (1) WO2008068673A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534295B (en) * 2015-01-19 2019-01-04 李文杰 It is a kind of can convenient light modulation flashlight

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6340869B1 (en) * 1997-08-05 2002-01-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method for operating direct current metal halogen arc lamp circuit pertaining thereto
US20030137834A1 (en) * 1999-11-15 2003-07-24 Gregory Z. Jigamian Apparatus and method for operating a portable xenon arc searchlight
WO2006072861A1 (en) * 2005-01-03 2006-07-13 Philips Intellectual Property & Standards Gmbh A method and an operation controller for operation of a mercury vapour discharge lamp in an image rendering system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6340869B1 (en) * 1997-08-05 2002-01-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method for operating direct current metal halogen arc lamp circuit pertaining thereto
US20030137834A1 (en) * 1999-11-15 2003-07-24 Gregory Z. Jigamian Apparatus and method for operating a portable xenon arc searchlight
WO2006072861A1 (en) * 2005-01-03 2006-07-13 Philips Intellectual Property & Standards Gmbh A method and an operation controller for operation of a mercury vapour discharge lamp in an image rendering system

Also Published As

Publication number Publication date
WO2008068673A2 (en) 2008-06-12

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