JP5582865B2 - 灯具 - Google Patents
灯具 Download PDFInfo
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- JP5582865B2 JP5582865B2 JP2010110037A JP2010110037A JP5582865B2 JP 5582865 B2 JP5582865 B2 JP 5582865B2 JP 2010110037 A JP2010110037 A JP 2010110037A JP 2010110037 A JP2010110037 A JP 2010110037A JP 5582865 B2 JP5582865 B2 JP 5582865B2
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- Prior art keywords
- light
- distribution pattern
- reflector
- light distribution
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- Prior art date
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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
-
- 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]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
-
- 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]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
- F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
-
- 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]
- F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- 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
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
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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
-
- 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
- F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
-
- 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
- F21S41/36—Combinations of two or more separate reflectors
- F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
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- 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
- F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
- F21W2102/18—Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs
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- 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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
図1(a)は、第1の実施形態に係る車両用前照灯10の正面図であり、図1(b)は、図1(a)のP−P断面図である。車両用前照灯10は、ハウジング12、アウターカバー14、および灯具ユニット16を有する。以下、図1(b)において矢印Xが向く方向を灯具前方として説明する。また、灯具前方にみて右側を灯具右側、左側を灯具左側という。なお、車両用前照灯10は、車両左前部および右前部にそれぞれに1つずつ設けられる。図1(a)および図1(b)は、左右いずれかの車両用前照灯10の構成を示している。
図8は、第2の実施形態に係る車両用前照灯80の、図1(a)におけるP−P断面図である。車両用前照灯80は、特に言及しない限り第1の実施形態に係る車両用前照灯10と同様に構成される。以下、第1の実施形態と同様の個所は同一の符号を付して説明を省略する。
Claims (5)
- 矩形の発光面を有する複数の発光素子が並んで配置されることによって構成される細長い矩形の発光面を有する光源であって、縁を持つ発光面を有する光源が発した光を反射して、互いに角度を持つ第1カットオフラインおよび第2カットオフラインを有する配光パターンを形成するリフレクタと、
前記リフレクタにより反射された光が前方に進むための開口部が開けられたエクステンション部材と、
前記リフレクタにより反射される光のうち、前記エクステンション部材へ向かう光を遮光するシェードと、を備え、
前記リフレクタは、第1カットオフラインおよび第2カットオフラインを前記発光面の同じ所定の縁の反射像で形成することを特徴とする灯具。 - 前記リフレクタは、前記所定の縁の反射像で第1カットオフラインを形成する第1セグメントと、前記所定の縁の反射像で第2カットオフラインを形成する第2セグメントを有し、
第1セグメントと第2セグメントとは、隣り合って配置されることを特徴とする請求項1に記載の灯具。 - 前記リフレクタは、前記配光パターンとして車両前方に形成すべきロービーム用配光パターンを形成するよう設けられ、前記光源が発した光を反射して第1カットオフラインおよび第2カットオフラインを含むホットゾーン用配光パターンを形成するホットゾーン形成部と、前記ホットゾーン用配光パターンよりも水平方向に長い拡散配光パターンを形成する拡散領域形成部と、を有し、
前記ホットゾーン形成部は、前記光源までの平均距離が前記拡散領域形成部よりも短くなるよう配置されることを特徴とする請求項1または2に記載の灯具。 - 前記リフレクタは、前記配光パターンとして車両前方に形成すべきロービーム用配光パターンを形成するよう設けられ、前記光源が発した光を反射して第1カットオフラインおよび第2カットオフラインを含むホットゾーン用配光パターンを形成するホットゾーン形成部と、前記ホットゾーン用配光パターンよりも水平方向に長い拡散配光パターンを形成する一対の拡散領域形成部と、を有し、
ホットゾーン形成部は、一対の拡散領域形成部の間に配置されることを特徴とする請求項1または2に記載の灯具。 - 前記光源が発した光のうち前記リフレクタの外部に向かう光を、前記リフレクタによる反射光の進行方向より上方に反射する付加反射部材をさらに備えることを特徴とする請求項1から4のいずれかに記載の灯具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010110037A JP5582865B2 (ja) | 2010-05-12 | 2010-05-12 | 灯具 |
US13/099,467 US8721130B2 (en) | 2010-05-12 | 2011-05-03 | Vehicle headlamp with cut-off line forming reflector |
EP11165774.8A EP2386795B1 (en) | 2010-05-12 | 2011-05-12 | Lighting apparatus |
CN201110122061.1A CN102278686B (zh) | 2010-05-12 | 2011-05-12 | 灯具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010110037A JP5582865B2 (ja) | 2010-05-12 | 2010-05-12 | 灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011238511A JP2011238511A (ja) | 2011-11-24 |
JP5582865B2 true JP5582865B2 (ja) | 2014-09-03 |
Family
ID=44475182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010110037A Active JP5582865B2 (ja) | 2010-05-12 | 2010-05-12 | 灯具 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8721130B2 (ja) |
EP (1) | EP2386795B1 (ja) |
JP (1) | JP5582865B2 (ja) |
CN (1) | CN102278686B (ja) |
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US8851721B2 (en) | 2010-07-20 | 2014-10-07 | Magna International, Inc. | Hybrid projector LED low beam headlamp |
JP5643630B2 (ja) | 2010-12-14 | 2014-12-17 | 株式会社小糸製作所 | 車両用照明灯具 |
WO2012120947A1 (ja) * | 2011-03-04 | 2012-09-13 | 本田技研工業株式会社 | 車両の灯火装置及び同装置の取付構造 |
JP6126578B2 (ja) | 2011-04-07 | 2017-05-10 | マグナ インターナショナル インコーポレイテッド | ハイブリッド光学系のledヘッドランプ |
JP5722691B2 (ja) * | 2011-04-22 | 2015-05-27 | 株式会社小糸製作所 | 車両用前照灯 |
US8851723B2 (en) | 2011-05-19 | 2014-10-07 | Dialight Corporation | LED reflector optic for an automotive headlight |
JP2013004167A (ja) * | 2011-06-10 | 2013-01-07 | Koito Mfg Co Ltd | 車両用前照灯 |
US9097400B2 (en) * | 2011-10-31 | 2015-08-04 | Sl Corporation | Automotive headlamp |
JP6171163B2 (ja) * | 2012-03-19 | 2017-08-02 | 市光工業株式会社 | 車両用前照灯 |
US9133999B2 (en) * | 2012-03-19 | 2015-09-15 | Ichikoh Industries, Ltd. | Vehicle headlamp |
JP6019644B2 (ja) * | 2012-03-19 | 2016-11-02 | 市光工業株式会社 | 車両用前照灯 |
JP6019769B2 (ja) * | 2012-05-31 | 2016-11-02 | 市光工業株式会社 | 車両用前照灯 |
JP6111596B2 (ja) * | 2012-10-18 | 2017-04-12 | 市光工業株式会社 | 車両用前照灯 |
JP6070105B2 (ja) * | 2012-11-22 | 2017-02-01 | 市光工業株式会社 | 車両用前照灯 |
JP2014175149A (ja) * | 2013-03-08 | 2014-09-22 | Ichikoh Ind Ltd | 車両用前照灯 |
JP6104675B2 (ja) | 2013-03-29 | 2017-03-29 | 本田技研工業株式会社 | 自動二輪車のヘッドライト装置 |
JP6190611B2 (ja) * | 2013-03-29 | 2017-08-30 | 本田技研工業株式会社 | 自動二輪車のヘッドライト装置 |
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JP6277687B2 (ja) * | 2013-11-19 | 2018-02-14 | 市光工業株式会社 | 車両用前照灯 |
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JP6434214B2 (ja) * | 2014-02-06 | 2018-12-05 | 株式会社小糸製作所 | 車両用灯具 |
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JP6872390B2 (ja) * | 2017-03-15 | 2021-05-19 | 株式会社小糸製作所 | 車両用灯具 |
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2010
- 2010-05-12 JP JP2010110037A patent/JP5582865B2/ja active Active
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2011
- 2011-05-03 US US13/099,467 patent/US8721130B2/en active Active
- 2011-05-12 EP EP11165774.8A patent/EP2386795B1/en active Active
- 2011-05-12 CN CN201110122061.1A patent/CN102278686B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN102278686A (zh) | 2011-12-14 |
EP2386795A1 (en) | 2011-11-16 |
US20110280028A1 (en) | 2011-11-17 |
EP2386795B1 (en) | 2016-12-21 |
US8721130B2 (en) | 2014-05-13 |
JP2011238511A (ja) | 2011-11-24 |
CN102278686B (zh) | 2015-03-11 |
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