ATE542235T1 - VEHICLE HEADLIGHTS - Google Patents

VEHICLE HEADLIGHTS

Info

Publication number
ATE542235T1
ATE542235T1 AT10160520T AT10160520T ATE542235T1 AT E542235 T1 ATE542235 T1 AT E542235T1 AT 10160520 T AT10160520 T AT 10160520T AT 10160520 T AT10160520 T AT 10160520T AT E542235 T1 ATE542235 T1 AT E542235T1
Authority
AT
Austria
Prior art keywords
light emitting
emitting portion
tube
ceramic arc
vehicle headlights
Prior art date
Application number
AT10160520T
Other languages
German (de)
Inventor
Toru Ito
Yukihiro Onoda
Toshiaki Tsuda
Original Assignee
Koito Mfg Co Ltd
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 Koito Mfg Co Ltd filed Critical Koito Mfg Co Ltd
Application granted granted Critical
Publication of ATE542235T1 publication Critical patent/ATE542235T1/en

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
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F21S41/172—High-intensity discharge light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A vehicle headlamp (1) is provided with a discharge lamp (8) as a light source. The discharge lamp (8) is provided with: an outer tube (18) mounted on a socket (17); a ceramic arc tube (19) disposed within the outer tube (18) and including a light emitting portion (20), a first fine tube portion (21a) that is continuous with the light emitting portion (20) at a first side of the light emitting portion (20), and a second fine tube portion (21b) that is continuous with the light emitting portion (20) at a second side of the light emitting portion (20) which is opposite to said first side; and a pair of electrodes (24, 25) respectively disposed within the ceramic arc tube (19). The ceramic arc tube (19) is inclined with respect to the horizontal direction (H).
AT10160520T 2009-04-27 2010-04-21 VEHICLE HEADLIGHTS ATE542235T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009108309A JP2010257848A (en) 2009-04-27 2009-04-27 Vehicular headlight

Publications (1)

Publication Number Publication Date
ATE542235T1 true ATE542235T1 (en) 2012-02-15

Family

ID=42670427

Family Applications (1)

Application Number Title Priority Date Filing Date
AT10160520T ATE542235T1 (en) 2009-04-27 2010-04-21 VEHICLE HEADLIGHTS

Country Status (3)

Country Link
EP (1) EP2246872B1 (en)
JP (1) JP2010257848A (en)
AT (1) ATE542235T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011082323A1 (en) * 2011-09-08 2013-03-14 Osram Ag High-pressure discharge lamp for motor vehicle headlights

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63111704U (en) * 1987-01-14 1988-07-18
JPH07114807A (en) * 1993-10-15 1995-05-02 Matsushita Electric Works Ltd Headlamp device for vehicle
JPH1064481A (en) * 1996-08-20 1998-03-06 Kyocera Corp Ceramic tube for discharge lamp and manufacture thereof
JP2005203309A (en) * 2004-01-19 2005-07-28 Matsushita Electric Ind Co Ltd Discharge lamp and lighting system
JP2006100089A (en) * 2004-09-29 2006-04-13 Hitachi Lighting Ltd Ceramic metal-halide lamp
JP2006216337A (en) * 2005-02-02 2006-08-17 Koito Mfg Co Ltd Vehicular head lamp
JP4639151B2 (en) * 2006-01-13 2011-02-23 株式会社小糸製作所 Vehicle headlamp
CN101033828A (en) * 2006-03-10 2007-09-12 杨庆铈 Far and near beam xenon metal halide lamp used in vehicle
EP2000447A4 (en) 2006-03-24 2012-07-25 Ngk Insulators Ltd Sintered body, light emitting tube and process for manufacturing the same
EP1903598A3 (en) * 2006-09-22 2010-01-06 Toshiba Lighting & Technology Corporation High-pressure discharge lamp, high-pressure discharge lamp operating apparatus, and illuminating apparatus.

Also Published As

Publication number Publication date
JP2010257848A (en) 2010-11-11
EP2246872A1 (en) 2010-11-03
EP2246872B1 (en) 2012-01-18

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