EP2434210A1 - Vehicle headlamp - Google Patents

Vehicle headlamp Download PDF

Info

Publication number
EP2434210A1
EP2434210A1 EP11180490A EP11180490A EP2434210A1 EP 2434210 A1 EP2434210 A1 EP 2434210A1 EP 11180490 A EP11180490 A EP 11180490A EP 11180490 A EP11180490 A EP 11180490A EP 2434210 A1 EP2434210 A1 EP 2434210A1
Authority
EP
European Patent Office
Prior art keywords
light distribution
light
vehicle
shade
distribution pattern
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.)
Withdrawn
Application number
EP11180490A
Other languages
German (de)
English (en)
French (fr)
Inventor
Yoshiyuki Nakanishi
Kiyotaka Mochizuki
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 EP2434210A1 publication Critical patent/EP2434210A1/en
Withdrawn legal-status Critical Current

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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
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
    • F21W2102/15—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted under L-shaped cut-off lines, i.e. vertical and horizontal cutoff lines

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP11180490A 2010-09-22 2011-09-08 Vehicle headlamp Withdrawn EP2434210A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010211672A JP5610949B2 (ja) 2010-09-22 2010-09-22 車両用前照灯

Publications (1)

Publication Number Publication Date
EP2434210A1 true EP2434210A1 (en) 2012-03-28

Family

ID=44677650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180490A Withdrawn EP2434210A1 (en) 2010-09-22 2011-09-08 Vehicle headlamp

Country Status (2)

Country Link
EP (1) EP2434210A1 (ja)
JP (1) JP5610949B2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112598A1 (de) * 2012-12-19 2014-06-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Beleuchtungseinrichtung
EP2853804A1 (fr) * 2013-09-30 2015-04-01 Valeo Vision Module d'éclairage et/ou de signalisation avec plusieurs systèmes optiques rotatifs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0729401A (ja) * 1993-07-15 1995-01-31 Koito Mfg Co Ltd 投射型自動車用ヘッドランプ
US20050024889A1 (en) * 2003-05-22 2005-02-03 Atsushi Sugimoto Vehicle headlamp
US20070195543A1 (en) * 2006-02-17 2007-08-23 Atsushi Sugimoto Vehicle headlamp
JP2010086863A (ja) 2008-10-01 2010-04-15 Koito Mfg Co Ltd 車両用前照灯装置
EP2244007A1 (fr) * 2009-04-24 2010-10-27 Valeo Vision Dispositif optique pour véhicule automobile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2548801Y2 (ja) * 1991-10-08 1997-09-24 株式会社小糸製作所 投射型自動車用ヘッドランプ
JPH0741809U (ja) * 1993-12-27 1995-07-21 株式会社小糸製作所 自動車用ヘッドランプ
JP2005259549A (ja) * 2004-03-12 2005-09-22 Koito Mfg Co Ltd 投射型自動車用ヘッドランプ
JP2009301763A (ja) * 2008-06-11 2009-12-24 Koito Mfg Co Ltd 車輌用前照灯

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0729401A (ja) * 1993-07-15 1995-01-31 Koito Mfg Co Ltd 投射型自動車用ヘッドランプ
US20050024889A1 (en) * 2003-05-22 2005-02-03 Atsushi Sugimoto Vehicle headlamp
US20070195543A1 (en) * 2006-02-17 2007-08-23 Atsushi Sugimoto Vehicle headlamp
JP2010086863A (ja) 2008-10-01 2010-04-15 Koito Mfg Co Ltd 車両用前照灯装置
EP2244007A1 (fr) * 2009-04-24 2010-10-27 Valeo Vision Dispositif optique pour véhicule automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112598A1 (de) * 2012-12-19 2014-06-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Beleuchtungseinrichtung
EP2853804A1 (fr) * 2013-09-30 2015-04-01 Valeo Vision Module d'éclairage et/ou de signalisation avec plusieurs systèmes optiques rotatifs
FR3011310A1 (fr) * 2013-09-30 2015-04-03 Valeo Vision Module d'eclairage et/ou de signalisation avec plusieurs systemes optiques rotatifs

Also Published As

Publication number Publication date
JP5610949B2 (ja) 2014-10-22
JP2012069312A (ja) 2012-04-05

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