JP5442222B2 - 車両用前照灯 - Google Patents
車両用前照灯 Download PDFInfo
- Publication number
- JP5442222B2 JP5442222B2 JP2008175103A JP2008175103A JP5442222B2 JP 5442222 B2 JP5442222 B2 JP 5442222B2 JP 2008175103 A JP2008175103 A JP 2008175103A JP 2008175103 A JP2008175103 A JP 2008175103A JP 5442222 B2 JP5442222 B2 JP 5442222B2
- Authority
- JP
- Japan
- Prior art keywords
- movable
- shade
- light source
- light
- boundary
- 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.)
- Expired - Fee Related
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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
- F21S41/689—Flaps, i.e. screens pivoting around one of their edges
-
- 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
- F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
-
- 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
- F21S41/17—Discharge light sources
- F21S41/172—High-intensity discharge light sources
-
- 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
- F21S41/30—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
-
- 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
- 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
- F21S41/67—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
Description
図1は、第1の実施形態に係る車両用前照灯10の構成を示す断面図である。車両用前照灯10は、ランプボディ12、透光カバー14、および灯具ユニット20Aを有する。以下、図1において左側を灯具前方、右側を灯具後方として説明する。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。図1は、灯具ユニット20Aの光軸Xを含む鉛直平面によって切断された車両用前照灯10を灯具左側から見た断面を示している。
図7は、第2の実施形態に係る灯具ユニット20Bの構成を示す断面図である。図7は、光軸Xを含む鉛直平面によって切断された灯具ユニット20Bを灯具前方に見て左側から見た断面を示している。以下、第1の実施形態と同様の個所については同一の符号を付して説明を省略する。
図10は、第3の実施形態に係る灯具ユニット20Cの構成を示す断面図である。図10は、光軸Xを含む鉛直平面によって切断された灯具ユニット20Cを灯具前方に見て左から見た断面を示している。以下、上述の実施形態と同様の個所については同一の符号を付して説明を省略する。
Claims (5)
- 光源と、
前記光源の照射光を用いた光源像を形成する光源像形成手段と、
形成された光源像を投影する投影レンズと、
を備え、
前記光源像形成手段は、
前記光源による照射光の前記投影レンズへの入射を抑止する閉鎖位置と前記投影レンズへの入射の抑止を解除する開放位置との間で各々が移動可能に並設される複数の可動シェードと、
前記複数の可動シェードが閉鎖位置にあるときにおける前記複数の可動シェードの並列する境界側端部に沿うように設けられ、前記複数の可動シェードが閉鎖位置にあるときの光源像の境界線を形成する境界シェードと、を有し、
前記複数の可動シェードのうちの隣接する2つの可動シェードは、前記2つの可動シェードの間からの前記投影レンズに向けた光の漏れを抑制すべく互いにオーバーラップするよう設けられ、
前記境界シェードは、前記複数の可動シェードうち少なくとも1つの所定の可動シェードが開放位置にあるときに前記投影レンズに向けて前記光源の照射光を反射し、当該所定の可動シェードが閉鎖位置にあるときに前記投影レンズに向けた前記光源の照射光の反射が抑制される反射面を有することを特徴とする車両用前照灯。 - 前記複数の可動シェードの少なくとも一つおよび前記境界シェードは、前記複数の可動シェードが閉鎖位置にあるときに、前記境界シェードと前記複数の可動シェードとの間からの前記投影レンズに向けた光の漏れを抑制すべく互いにオーバーラップするよう設けられることを特徴とする請求項1に記載の車両用前照灯。
- 前記複数の可動シェードの各々は、閉鎖位置と開放位置との間で光軸に対して所定角度を持つ方向に移動可能に設けられることを特徴とする請求項1または2に記載の車両用前照灯。
- 前記複数の可動シェードの各々は、閉鎖位置と開放位置との間で光軸と垂直な軸を中心に回動可能に設けられることを特徴とする請求項1または2に記載の車両用前照灯。
- 光源と、
前記光源の照射光を用いた光源像を形成する光源像形成手段と、
形成された光源像を投影する投影レンズと、
を備え、
前記光源像形成手段は、
前記光源による照射光の前記投影レンズへの入射を抑止する閉鎖位置と前記投影レンズへの入射の抑止を解除する開放位置との間で各々が移動可能に並設される複数の可動シェードと、
前記複数の可動シェードが閉鎖位置にあるときにおける前記複数の可動シェードの並列する境界側端部に沿うように設けられ、前記複数の可動シェードが閉鎖位置にあるときの光源像の境界線を形成する境界シェードと、を有し、
前記境界シェードは、前記複数の可動シェードうち少なくとも1つの所定の可動シェードが開放位置にあるときに前記投影レンズに向けて前記光源の照射光を反射し、当該所定の可動シェードが閉鎖位置にあるときに前記投影レンズに向けた前記光源の照射光の反射が抑制される反射面を有することを特徴とする車両用前照灯。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008175103A JP5442222B2 (ja) | 2008-07-03 | 2008-07-03 | 車両用前照灯 |
US12/496,156 US8104938B2 (en) | 2008-07-03 | 2009-07-01 | Vehicle headlamp |
EP09008676A EP2141409B1 (en) | 2008-07-03 | 2009-07-02 | Vehicle headlamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008175103A JP5442222B2 (ja) | 2008-07-03 | 2008-07-03 | 車両用前照灯 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010015836A JP2010015836A (ja) | 2010-01-21 |
JP5442222B2 true JP5442222B2 (ja) | 2014-03-12 |
Family
ID=41120096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008175103A Expired - Fee Related JP5442222B2 (ja) | 2008-07-03 | 2008-07-03 | 車両用前照灯 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8104938B2 (ja) |
EP (1) | EP2141409B1 (ja) |
JP (1) | JP5442222B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5452248B2 (ja) * | 2010-01-25 | 2014-03-26 | スタンレー電気株式会社 | プロジェクタ型前照灯及びシェード |
JP5518533B2 (ja) * | 2010-03-12 | 2014-06-11 | 株式会社小糸製作所 | 車両用前照灯および車両用前照灯用の発光モジュール |
JP2011258406A (ja) * | 2010-06-09 | 2011-12-22 | Koito Mfg Co Ltd | 光学ユニット |
JP5848920B2 (ja) * | 2011-08-30 | 2016-01-27 | スタンレー電気株式会社 | 車両用前照灯 |
DE102011121425A1 (de) * | 2011-12-17 | 2013-06-20 | Volkswagen Aktiengesellschaft | Blendenanordnung für einen Fahrzeugscheinwerfer und Fahrzeugscheinwerfer mit einer solchen Blendenanordnung |
US8956029B2 (en) * | 2012-03-23 | 2015-02-17 | Stanley Electric Co., Ltd. | Vehicle lighting unit |
US9476556B2 (en) * | 2013-01-04 | 2016-10-25 | Honda Motor Co., Ltd. | Vehicle headlight assembly |
US9924571B2 (en) | 2014-10-17 | 2018-03-20 | Tridonic Gmbh & Co Kg | Operating circuit for energizing a lamp, LED converter, and method for operating an operating circuit |
KR102313633B1 (ko) * | 2014-12-24 | 2021-10-18 | 에스엘 주식회사 | 헤드 램프용 로우빔 쉴드 |
TWI568973B (zh) * | 2016-02-22 | 2017-02-01 | The light emitting structure of the headlight module | |
KR101766133B1 (ko) * | 2016-04-06 | 2017-08-08 | 현대자동차주식회사 | 차량용 헤드램프 모듈 |
TWI600857B (zh) * | 2017-02-09 | 2017-10-01 | 可增強車燈光強度的遮光模組 | |
US10094527B1 (en) * | 2017-09-21 | 2018-10-09 | Osram Sylvania Inc. | Vehicle low beam headlamp having partially transmissive shutter region |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5113319A (en) * | 1989-11-28 | 1992-05-12 | Stanley Electric Co. Ltd. | Head lamp for cornering operation |
JPH03167040A (ja) * | 1989-11-28 | 1991-07-18 | Stanley Electric Co Ltd | コーナリング前照灯 |
US5161875A (en) | 1989-11-28 | 1992-11-10 | Stanley Electric Company, Ltd. | Head lamp for cornering operation |
DE19642467B4 (de) | 1996-10-15 | 2010-04-08 | Automotive Lighting Reutlingen Gmbh | Scheinwerferanlage für Fahrzeuge zur Aussendung eines veränderlichen Lichtbündels |
JP2006040785A (ja) | 2004-07-29 | 2006-02-09 | Koito Mfg Co Ltd | 車両用前照灯 |
JP4341536B2 (ja) * | 2004-12-06 | 2009-10-07 | 市光工業株式会社 | ヘッドランプ |
DE102006008188A1 (de) | 2006-02-22 | 2007-08-30 | Audi Ag | Beleuchtungsvorrichtung für ein Fahrzeug |
DE102006031819A1 (de) * | 2006-07-07 | 2008-01-10 | Hella Kgaa Hueck & Co. | Projektionsscheinwerfer für Fahrzeuge |
-
2008
- 2008-07-03 JP JP2008175103A patent/JP5442222B2/ja not_active Expired - Fee Related
-
2009
- 2009-07-01 US US12/496,156 patent/US8104938B2/en not_active Expired - Fee Related
- 2009-07-02 EP EP09008676A patent/EP2141409B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2141409B1 (en) | 2013-03-20 |
EP2141409A3 (en) | 2010-09-29 |
US8104938B2 (en) | 2012-01-31 |
JP2010015836A (ja) | 2010-01-21 |
EP2141409A2 (en) | 2010-01-06 |
US20100002457A1 (en) | 2010-01-07 |
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