WO2009028686A1 - 車両用灯具 - Google Patents

車両用灯具 Download PDF

Info

Publication number
WO2009028686A1
WO2009028686A1 PCT/JP2008/065586 JP2008065586W WO2009028686A1 WO 2009028686 A1 WO2009028686 A1 WO 2009028686A1 JP 2008065586 W JP2008065586 W JP 2008065586W WO 2009028686 A1 WO2009028686 A1 WO 2009028686A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
projection lens
lamp fixture
light source
shade
Prior art date
Application number
PCT/JP2008/065586
Other languages
English (en)
French (fr)
Inventor
Norifumi Kanai
Original Assignee
Nalux 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
Priority claimed from PCT/JP2007/066931 external-priority patent/WO2009028076A1/ja
Application filed by Nalux Co., Ltd. filed Critical Nalux Co., Ltd.
Priority to JP2009530218A priority Critical patent/JP5315505B2/ja
Priority to US12/379,674 priority patent/US8109663B2/en
Publication of WO2009028686A1 publication Critical patent/WO2009028686A1/ja

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
    • F21S41/10—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
    • F21S41/20—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
    • 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
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • 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

Landscapes

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

Abstract

　投影レンズの透過率の低下およびそれによる光量の低下を最小限に抑え、かつ光学特性を損なわずに、色割れを低減する車両用灯具を提供する。車両用灯具は、光源、リフレクタ、シェードおよび投影レンズを備え、前記光源の光を前記リフレクタによって反射させ、前記シェードによって光の一部を遮断し、遮断しない光を、前記投影レンズを透過させて前方に照射する車両用灯具である。本発明による車両用灯具は、前記投影レンズの、少なくとも一面の光通過領域の端部を含む領域に、色割れを低減するための回折格子を設け、fは前記端部を通過する周縁光線によって決定されるレンズの焦点距離であり、fDは前記端部を通過する周縁光線によって決定される回折面の焦点距離であるとして、前記光源の特性による色割れを低減するように、前記光源の相関色温度にしたがって、fD／fの大きさおよび前記シェードの光軸上の位置を定めている。
PCT/JP2008/065586 2007-08-30 2008-08-29 車両用灯具 WO2009028686A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009530218A JP5315505B2 (ja) 2007-08-30 2008-08-29 車両用灯具及びその製造方法
US12/379,674 US8109663B2 (en) 2007-08-30 2009-02-26 Vehicular lamp

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JPPCT/JP2007/066931 2007-08-30
PCT/JP2007/066931 WO2009028076A1 (ja) 2007-08-30 2007-08-30 車両用灯具
US6479908P 2008-03-27 2008-03-27
US61/064,799 2008-03-27
US7172908P 2008-05-14 2008-05-14
US61/071,729 2008-05-14

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/379,674 Continuation-In-Part US8109663B2 (en) 2007-08-30 2009-02-26 Vehicular lamp

Publications (1)

Publication Number Publication Date
WO2009028686A1 true WO2009028686A1 (ja) 2009-03-05

Family

ID=40387396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065586 WO2009028686A1 (ja) 2007-08-30 2008-08-29 車両用灯具

Country Status (1)

Country Link
WO (1) WO2009028686A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9285092B2 (en) 2012-07-24 2016-03-15 Stanley Electric Co., Ltd. Projector type headlight
JP2016072228A (ja) * 2014-09-22 2016-05-09 ヒュンダイ・モービス・カンパニー・リミテッド 色収差が低減されたランプレンズおよびそれを用いた車両用ランプ
EP2620695A3 (en) * 2012-01-25 2018-04-11 Koito Manufacturing Co., Ltd. Vehicular headlamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062001A (ja) * 1983-08-18 1985-04-10 シビエ・プロジエクトール 自動車用前照灯
JPH01113903U (ja) * 1988-01-28 1989-07-31
JP2003123509A (ja) * 2001-10-05 2003-04-25 Stanley Electric Co Ltd プロジェクタ型ヘッドランプ
JP2005044804A (ja) * 2003-07-23 2005-02-17 Schott Ag 照明装置、レンズ、及びレンズ製造方法
JP2005302718A (ja) * 2004-04-08 2005-10-27 Schott Ag レンズ付き照明装置およびその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062001A (ja) * 1983-08-18 1985-04-10 シビエ・プロジエクトール 自動車用前照灯
JPH01113903U (ja) * 1988-01-28 1989-07-31
JP2003123509A (ja) * 2001-10-05 2003-04-25 Stanley Electric Co Ltd プロジェクタ型ヘッドランプ
JP2005044804A (ja) * 2003-07-23 2005-02-17 Schott Ag 照明装置、レンズ、及びレンズ製造方法
JP2005302718A (ja) * 2004-04-08 2005-10-27 Schott Ag レンズ付き照明装置およびその製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620695A3 (en) * 2012-01-25 2018-04-11 Koito Manufacturing Co., Ltd. Vehicular headlamp
US9285092B2 (en) 2012-07-24 2016-03-15 Stanley Electric Co., Ltd. Projector type headlight
JP2016072228A (ja) * 2014-09-22 2016-05-09 ヒュンダイ・モービス・カンパニー・リミテッド 色収差が低減されたランプレンズおよびそれを用いた車両用ランプ
US9890919B2 (en) 2014-09-22 2018-02-13 Hyundai Mobis Co., Ltd. Lamp lens with reduced chromatic aberration and lamp for vehicle using the same

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