EP2522897A3 - Vehicle headlamp - Google Patents

Vehicle headlamp Download PDF

Info

Publication number
EP2522897A3
EP2522897A3 EP20120166944 EP12166944A EP2522897A3 EP 2522897 A3 EP2522897 A3 EP 2522897A3 EP 20120166944 EP20120166944 EP 20120166944 EP 12166944 A EP12166944 A EP 12166944A EP 2522897 A3 EP2522897 A3 EP 2522897A3
Authority
EP
European Patent Office
Prior art keywords
light source
optical component
vehicle headlamp
reflector
location
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.)
Granted
Application number
EP20120166944
Other languages
German (de)
French (fr)
Other versions
EP2522897B1 (en
EP2522897A2 (en
Inventor
Motohiro Komatsu
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.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing 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 Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of EP2522897A2 publication Critical patent/EP2522897A2/en
Publication of EP2522897A3 publication Critical patent/EP2522897A3/en
Application granted granted Critical
Publication of EP2522897B1 publication Critical patent/EP2522897B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • 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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • F21S45/435—Forced cooling using gas circulating the gas within a closed system

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A vehicle headlamp (1) is provided with a light source body (13) and an optical component (26). The light source body (13) includes a planar light source (15) and a reflector (16). The optical component (26) has a focal point and is adapted to reflect or project the light from the planar light source (15). A relative position between the light source body (13) and the optical component (26) is variable so that the focal point of the optical component (26) moves between a first location on the reflector (16) and a second location on the planar light source (15).
EP12166944.4A 2011-05-10 2012-05-07 Vehicle headlamp Active EP2522897B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011105163A JP5713792B2 (en) 2011-05-10 2011-05-10 Vehicle headlamp

Publications (3)

Publication Number Publication Date
EP2522897A2 EP2522897A2 (en) 2012-11-14
EP2522897A3 true EP2522897A3 (en) 2015-05-06
EP2522897B1 EP2522897B1 (en) 2020-03-18

Family

ID=46044557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12166944.4A Active EP2522897B1 (en) 2011-05-10 2012-05-07 Vehicle headlamp

Country Status (2)

Country Link
EP (1) EP2522897B1 (en)
JP (1) JP5713792B2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012224345A1 (en) 2012-12-21 2014-06-26 Osram Gmbh Vehicle lighting device
JP6164928B2 (en) * 2013-05-17 2017-07-19 三菱電機株式会社 Automotive headlamp
JP6481152B2 (en) * 2013-11-14 2019-03-13 日産自動車株式会社 Antenna device
JP2016038966A (en) * 2014-08-06 2016-03-22 パナソニックＩｐマネジメント株式会社 Luminaire and vehicle mounted with the same
WO2016189907A1 (en) 2015-05-25 2016-12-01 三菱電機株式会社 Headlamp module and headlamp
DE102014112931B4 (en) * 2014-09-09 2023-11-30 HELLA GmbH & Co. KGaA Headlights for vehicles
TWI554713B (en) 2015-01-28 2016-10-21 隆達電子股份有限公司 Light emitting diode headlight
JP6639315B2 (en) * 2016-04-13 2020-02-05 株式会社小糸製作所 Lighting equipment
JP7149062B2 (en) * 2017-10-25 2022-10-06 スタンレー電気株式会社 vehicle lighting unit
EP3517831A1 (en) * 2018-01-29 2019-07-31 Valeo Iluminacion Automotive luminous device
JP7112253B2 (en) * 2018-05-28 2022-08-03 株式会社小糸製作所 vehicle lamp
JP7273277B2 (en) * 2019-05-29 2023-05-15 株式会社小糸製作所 vehicle lamp
WO2020241263A1 (en) * 2019-05-29 2020-12-03 株式会社小糸製作所 Vehicular lamp
JP2024075999A (en) * 2022-11-24 2024-06-05 市光工業株式会社 Vehicle lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258623A1 (en) * 2002-12-16 2004-07-08 Daimlerchrysler Ag Headlamp unit for private cars, has body thermally insulated against external heat
DE102007006258A1 (en) * 2007-02-08 2008-08-14 Daimler Ag Light unit i.e. headlight, for motor vehicle, has frame for arranging number of LED arrangements, and optical element e.g. lens, arranged at another frame, where latter frame modularly surrounds former frame
US20080247182A1 (en) * 2007-04-03 2008-10-09 Koito Manufacturing Co., Ltd. Vehicle lamp
JP2009134964A (en) * 2007-11-29 2009-06-18 Stanley Electric Co Ltd Vehicle headlamp
DE102008003006A1 (en) * 2008-01-02 2009-07-09 Automotive Lighting Reutlingen Gmbh Vehicle headlight with swiveling deflecting mirror
EP2085264A2 (en) * 2008-01-29 2009-08-05 Koito Manufacturing Co., Ltd. Automotive headlamp apparatus and method of control
JP2009259667A (en) * 2008-04-18 2009-11-05 Ichikoh Ind Ltd Vehicle lamp
DE202009016976U1 (en) * 2008-12-29 2010-03-18 Davydov, Mikhail Yurievich Light source, headlight of a means of transport and optical system of the light source

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2698433B2 (en) * 1989-07-05 1998-01-19 本田技研工業株式会社 Projector lighting system
US7410282B2 (en) * 2005-10-25 2008-08-12 Visteon Global Technologies, Inc. Bi-functional headlight module
JP5321048B2 (en) 2008-12-26 2013-10-23 市光工業株式会社 Vehicle headlamp
JP2011090905A (en) * 2009-10-22 2011-05-06 Koito Mfg Co Ltd Vehicular headlight

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10258623A1 (en) * 2002-12-16 2004-07-08 Daimlerchrysler Ag Headlamp unit for private cars, has body thermally insulated against external heat
DE102007006258A1 (en) * 2007-02-08 2008-08-14 Daimler Ag Light unit i.e. headlight, for motor vehicle, has frame for arranging number of LED arrangements, and optical element e.g. lens, arranged at another frame, where latter frame modularly surrounds former frame
US20080247182A1 (en) * 2007-04-03 2008-10-09 Koito Manufacturing Co., Ltd. Vehicle lamp
JP2009134964A (en) * 2007-11-29 2009-06-18 Stanley Electric Co Ltd Vehicle headlamp
DE102008003006A1 (en) * 2008-01-02 2009-07-09 Automotive Lighting Reutlingen Gmbh Vehicle headlight with swiveling deflecting mirror
EP2085264A2 (en) * 2008-01-29 2009-08-05 Koito Manufacturing Co., Ltd. Automotive headlamp apparatus and method of control
JP2009259667A (en) * 2008-04-18 2009-11-05 Ichikoh Ind Ltd Vehicle lamp
DE202009016976U1 (en) * 2008-12-29 2010-03-18 Davydov, Mikhail Yurievich Light source, headlight of a means of transport and optical system of the light source

Also Published As

Publication number Publication date
EP2522897B1 (en) 2020-03-18
JP5713792B2 (en) 2015-05-07
JP2012238417A (en) 2012-12-06
EP2522897A2 (en) 2012-11-14

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