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WO2008055943A3 - Halogen bulb - Google Patents

Halogen bulb Download PDF

Info

Publication number
WO2008055943A3
WO2008055943A3 PCT/EP2007/062027 EP2007062027W WO2008055943A3 WO 2008055943 A3 WO2008055943 A3 WO 2008055943A3 EP 2007062027 W EP2007062027 W EP 2007062027W WO 2008055943 A3 WO2008055943 A3 WO 2008055943A3
Authority
WO
WIPO (PCT)
Prior art keywords
filament
halogen bulb
filaments
designed
generates
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.)
Ceased
Application number
PCT/EP2007/062027
Other languages
German (de)
French (fr)
Other versions
WO2008055943A2 (en
Inventor
Sascha Zelt
Frank Auer
Christian Seichter
Gerhard Behr
Klaus Wittmann
Peter Helbig
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.)
Osram GmbH
Original Assignee
Osram GmbH
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 Osram GmbH filed Critical Osram GmbH
Publication of WO2008055943A2 publication Critical patent/WO2008055943A2/en
Publication of WO2008055943A3 publication Critical patent/WO2008055943A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a halogen bulb comprising two filaments that are located (21, 22) in a lamp body (10), a first filament (21) being designed for operation at a higher electrical output than the second filament (22). The filaments (21, 22) are designed in such a way that the second filament (22) generates a lower luminance than the first filament (21). The first filament is preferably used as a main beam filament and the second filament is used to generate a daylight driving beam.
PCT/EP2007/062027 2006-11-09 2007-11-08 Halogen bulb Ceased WO2008055943A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610052951 DE102006052951A1 (en) 2006-11-09 2006-11-09 halogen bulb
DE102006052951.0 2006-11-09

Publications (2)

Publication Number Publication Date
WO2008055943A2 WO2008055943A2 (en) 2008-05-15
WO2008055943A3 true WO2008055943A3 (en) 2008-12-31

Family

ID=39277547

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/062027 Ceased WO2008055943A2 (en) 2006-11-09 2007-11-08 Halogen bulb

Country Status (3)

Country Link
DE (1) DE102006052951A1 (en)
TW (1) TW200832498A (en)
WO (1) WO2008055943A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037577A1 (en) 2009-08-14 2011-02-17 Osram Gesellschaft mit beschränkter Haftung Halogen bulb for vehicle headlights
EP2997593B1 (en) * 2013-05-13 2018-09-05 Lumileds Holding B.V. Double-filament incandescent lamp for automotive vehicle front lighting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598342A (en) * 1984-07-09 1986-07-01 Gte Products Corporation Low wattage double filament tungsten-halogen lamp
EP0731489A1 (en) * 1995-03-09 1996-09-11 STMicroelectronics S.r.l. Multi-wires lamp, method for varying the brightness and corresponding driving and control circuit
WO2002007188A1 (en) * 2000-07-19 2002-01-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogen filament lamp
DE102004040417A1 (en) * 2004-08-19 2006-02-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electric light bulb for vehicle headlights
EP1667205A2 (en) * 2004-11-03 2006-06-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlight lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598342A (en) * 1984-07-09 1986-07-01 Gte Products Corporation Low wattage double filament tungsten-halogen lamp
EP0731489A1 (en) * 1995-03-09 1996-09-11 STMicroelectronics S.r.l. Multi-wires lamp, method for varying the brightness and corresponding driving and control circuit
WO2002007188A1 (en) * 2000-07-19 2002-01-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Halogen filament lamp
DE102004040417A1 (en) * 2004-08-19 2006-02-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electric light bulb for vehicle headlights
EP1667205A2 (en) * 2004-11-03 2006-06-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vehicle headlight lamp

Also Published As

Publication number Publication date
DE102006052951A1 (en) 2008-05-15
TW200832498A (en) 2008-08-01
WO2008055943A2 (en) 2008-05-15

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