JP2004342574A - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
- Publication number
- JP2004342574A JP2004342574A JP2003320694A JP2003320694A JP2004342574A JP 2004342574 A JP2004342574 A JP 2004342574A JP 2003320694 A JP2003320694 A JP 2003320694A JP 2003320694 A JP2003320694 A JP 2003320694A JP 2004342574 A JP2004342574 A JP 2004342574A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- led
- led array
- light distribution
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
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- 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
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- 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
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- 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
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
- F21S41/335—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with continuity at the junction between adjacent areas
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- 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
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
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- 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
- F21S41/19—Attachment of light sources or lamp holders
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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
【解決手段】 本発明により、LEDチップ22aを少なくとも1列の列状に配置したLEDアレイ22とした複数の光源2と、光源2のそれぞれと1対1で組合わされそれぞれが所定の配光パターンを生成する反射面3とからなり、光源と反射面との組合せが2〜12組使用されていて、それぞれの組が形成する配光パターンの組合わせで総合配光パターンが構成されている車両用灯具1として、LEDチップの状態で光源を構成するものとしたことで、格段に多いLEDの数を車両用灯具に配置できるものとして光量不足の問題を解決し、併せて配光パターンの形成にも問題を生じないものとして、課題を解決するものである。
【選択図】 図1
Description
2、12……光源
21、121……光源ホルダ
21a、121a……側面
22(U、D、L、R、UL、DL)……LEDアレイ
22a……LEDチップ
23……シリンドリカルレンズ
3(U、D、L、R)……反射面
4……レンズ
4a…レンズカット
5、15……シェード
6…投影レンズ
Claims (8)
- LEDチップを少なくとも1列の列状に配置したLEDアレイとした複数の光源と、前記光源のそれぞれと1対1で組合わされそれぞれの組合せが所定の配光パターンを生成する反射面とからなり、前記光源と前記反射面との組合せが2〜12組使用されていて、それぞれの組が形成する前記配光パターンの組合わせで総合配光パターンが構成されていることを特徴とする車両用灯具。
- 前記光源である複数のLEDアレイは、この車両用灯具の照射方向に沿う方向に軸を有する略多角柱状とした光源ホルダのそれぞれの側面に前記軸に沿い形成され、前記反射面は前記光源ホルダを取囲み設けられていることを特徴とする請求項1記載の車両用灯具。
- 前記光源である複数のLEDアレイは、この車両用灯具の照射方向に沿う方向に軸を有する略多角柱状とした光源ホルダのそれぞれの側面に配置され、それぞれのLEDアレイの列方向は、対応する反射面で得られる投影像が水平線に対して略平行する方向に長手方向を有する投影像となるように前記側面に配置されていることを特徴とする請求項1記載の車両用灯具。
- 前記光源の近傍で、かつ、光源からの光の前記反射面への光路中には、該光源からの光の一部を遮るシェードが設けられて、前記配光パターンが形成されていることを特徴とする請求項1〜請求項3何れかに記載の車両用灯具。
- 前記シェードは前記光源ホルダの左右方向で、かつ、略垂直な側面に設けられていることを特徴とする請求項4記載の車両用灯具。
- 前記光源ホルダにおける複数の光源の一部には前記LEDアレイの列方向に沿う軸を有するシリンドリカルレンズが設けられていることを特徴とする請求項1〜請求項5何れかに記載の車両用灯具。
- 前記LEDアレイは、基本とする配光パターンを形成するための必要数よりも多い数が整列されるものとされ、点灯数および点灯位置を制御することで基本とする配光パターンとは異なる配光パターンを得ることを特徴とする請求項1〜請求項6何れかに記載の車両用灯具。
- 前記光源である前記LEDアレイ、若しくは、前記LEDアレイを構成するLEDチップを前記反射面側に向かい傾斜させていることを特徴とする請求項1〜請求項7何れかに記載の車両用灯具。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003320694A JP4335621B2 (ja) | 2003-04-25 | 2003-09-12 | 車両用灯具 |
US10/826,276 US7748879B2 (en) | 2003-04-25 | 2004-04-19 | Vehicle lamp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003122090 | 2003-04-25 | ||
JP2003320694A JP4335621B2 (ja) | 2003-04-25 | 2003-09-12 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004342574A true JP2004342574A (ja) | 2004-12-02 |
JP4335621B2 JP4335621B2 (ja) | 2009-09-30 |
Family
ID=33422046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003320694A Expired - Fee Related JP4335621B2 (ja) | 2003-04-25 | 2003-09-12 | 車両用灯具 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7748879B2 (ja) |
JP (1) | JP4335621B2 (ja) |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006310212A (ja) * | 2005-05-02 | 2006-11-09 | Citizen Electronics Co Ltd | バルブ型led光源 |
JP2007323885A (ja) * | 2006-05-31 | 2007-12-13 | Koito Mfg Co Ltd | 車両用灯具ユニット |
JP2007324003A (ja) * | 2006-06-01 | 2007-12-13 | Ichikoh Ind Ltd | 車両用灯具 |
JP2008530768A (ja) * | 2005-02-17 | 2008-08-07 | ユーク,アラン | 照明システムおよび方法、これに使用するためのリフレクタ |
DE102008011647A1 (de) | 2007-03-14 | 2008-09-18 | Koito Manufacturing Co., Ltd. | Fahrzeugleuchte |
DE102008009820A1 (de) | 2007-03-14 | 2008-09-25 | Koito Manufacturing Co., Ltd. | Leuchteneinheit für einen Fahrzeugscheinwerfer |
JP2008293958A (ja) * | 2007-03-14 | 2008-12-04 | Valeo Vision | 自動車のヘッドライトのための光モジュール |
WO2009063655A1 (ja) * | 2007-11-13 | 2009-05-22 | Phoenix Electric Co., Ltd. | 発光装置 |
JP2010108776A (ja) * | 2008-10-30 | 2010-05-13 | Ichikoh Ind Ltd | 車両用前照灯 |
JP2010108775A (ja) * | 2008-10-30 | 2010-05-13 | Ichikoh Ind Ltd | 車両用前照灯 |
JP2010140661A (ja) * | 2008-12-09 | 2010-06-24 | Koito Mfg Co Ltd | 車両用照明灯具 |
JP2010153269A (ja) * | 2008-12-26 | 2010-07-08 | Toyoda Gosei Co Ltd | 車両用灯具 |
JP2011081975A (ja) * | 2009-10-06 | 2011-04-21 | Stanley Electric Co Ltd | 車両用前照灯及びリフレクタユニット |
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JP2011222367A (ja) * | 2010-04-12 | 2011-11-04 | Ichikoh Ind Ltd | 車両用前照灯 |
JP2011243465A (ja) * | 2010-05-19 | 2011-12-01 | Nihon Funen Co Ltd | 歩行者用信号機の電球に代わって使用されるledランプ |
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