JP5305100B2 - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
- Publication number
- JP5305100B2 JP5305100B2 JP2009135505A JP2009135505A JP5305100B2 JP 5305100 B2 JP5305100 B2 JP 5305100B2 JP 2009135505 A JP2009135505 A JP 2009135505A JP 2009135505 A JP2009135505 A JP 2009135505A JP 5305100 B2 JP5305100 B2 JP 5305100B2
- Authority
- JP
- Japan
- Prior art keywords
- reflecting surface
- projection lens
- distribution pattern
- light distribution
- reflected
- 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
- 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
- F21S41/10—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
- F21S41/20—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
- 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
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
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)
Description
Claims (3)
- 投影レンズ、LED光源、シェード、第1反射面を備える車両用灯具において、
前記シェードは、その上面の投影レンズ側端縁を前記投影レンズの焦点近傍に位置させた状態で、前記投影レンズとLED光源との間に配置されており、
前記第1反射面は、前記LED光源の照射方向に配置され、当該第1反射面に到達し反射される前記LED光源からの照射光が、前記投影レンズ側端縁近傍に集光した後前記投影レンズを透過し前記投影レンズ側端縁によって規定されるカットオフラインを有する基本配光パターンを形成するように構成された反射面であり、
前記シェードの上面は、少なくとも第2反射面、第3反射面、第4反射面を含んでおり、
前記第2反射面は、当該第2反射面に到達し反射される前記第1反射面からの反射光が、前記投影レンズを透過し前記投影レンズ側端縁によって規定されるカットオフラインを有しかつ前記基本配光パターンに重畳される第1付加配光パターンを形成するように構成された同一平面の反射面であり、
前記第3反射面は、当該第3反射面に到達し反射される前記第1反射面からの反射光が、前記投影レンズを透過し前記カットオフラインに沿って延びかつ前記基本配光パターンに重畳される第2付加配光パターンを形成するように構成された反射面であって、前記シェードの上面のうち前記投影レンズ側端縁に沿って延びる段差部の上面に形成された反射面であり、
前記第4反射面は、当該第4反射面に到達する前記第1反射面からの反射光を前記投影レンズに入射しない方向に反射するように構成された反射面であって、前記段差部の上面の前記投影レンズ側端縁とは反対側の端縁から斜め下方に向かって傾斜し前記第2反射面に連続する反射面であることを特徴とする車両用灯具。 - 前記第3反射面の幅は、1mm以下に設定されていることを特徴とする請求項1に記載の車両用灯具。
- 前記第4反射面の水平面に対する傾斜角度は、5〜30度の範囲に設定されていることを特徴とする請求項1又は2に記載の車両用灯具。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009135505A JP5305100B2 (ja) | 2009-06-04 | 2009-06-04 | 車両用灯具 |
US12/793,171 US8092059B2 (en) | 2009-06-04 | 2010-06-03 | Vehicular lighting fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009135505A JP5305100B2 (ja) | 2009-06-04 | 2009-06-04 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010282843A JP2010282843A (ja) | 2010-12-16 |
JP5305100B2 true JP5305100B2 (ja) | 2013-10-02 |
Family
ID=43300622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009135505A Active JP5305100B2 (ja) | 2009-06-04 | 2009-06-04 | 車両用灯具 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8092059B2 (ja) |
JP (1) | JP5305100B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5535663B2 (ja) * | 2010-01-14 | 2014-07-02 | 株式会社小糸製作所 | 車両用ヘッドランプ |
JP5988594B2 (ja) | 2012-01-24 | 2016-09-07 | 株式会社小糸製作所 | 灯具ユニットおよび車両用灯具 |
JP6180772B2 (ja) * | 2013-04-01 | 2017-08-16 | 株式会社小糸製作所 | 車両用灯具 |
DE102013207850A1 (de) * | 2013-04-29 | 2014-10-30 | Automotive Lighting Reutlingen Gmbh | Lichtmodul für einen Kraftfahrzeugscheinwerfer |
KR102289755B1 (ko) * | 2014-12-24 | 2021-08-13 | 에스엘 주식회사 | 헤드 램프용 로우빔 쉴드 |
TWI554713B (zh) * | 2015-01-28 | 2016-10-21 | 隆達電子股份有限公司 | 發光二極體車頭燈 |
TWI568973B (zh) | 2016-02-22 | 2017-02-01 | The light emitting structure of the headlight module | |
CN108916797B (zh) * | 2017-03-31 | 2021-03-23 | 诚益光电科技股份有限公司 | 车灯装置及其遮板结构 |
EP4325113A1 (de) * | 2022-08-17 | 2024-02-21 | ZKW Group GmbH | Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6486401A (en) * | 1987-09-29 | 1989-03-31 | Koito Mfg Co Ltd | Head light of vehicle |
US6796696B2 (en) * | 2000-12-05 | 2004-09-28 | Stanley Electric Co., Ltd. | Vehicle light with movable reflector portion and shutter portion for selectively switching an illuminated area of light incident on a predetermined portion of the vehicle light during driving |
JP4080780B2 (ja) | 2002-04-23 | 2008-04-23 | 株式会社小糸製作所 | 光源ユニット |
JP4536479B2 (ja) * | 2003-12-02 | 2010-09-01 | 株式会社小糸製作所 | 車両用前照灯 |
JP4193713B2 (ja) * | 2004-02-02 | 2008-12-10 | 市光工業株式会社 | 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 |
JP4270093B2 (ja) * | 2004-10-06 | 2009-05-27 | 市光工業株式会社 | プロジェクタ型車両用前照灯ユニット |
JP4771055B2 (ja) * | 2005-06-16 | 2011-09-14 | スタンレー電気株式会社 | 車両用灯具及びそのled光源 |
JP4654979B2 (ja) * | 2006-05-30 | 2011-03-23 | 市光工業株式会社 | 車両用灯具 |
JP2008123753A (ja) * | 2006-11-09 | 2008-05-29 | Koito Mfg Co Ltd | 車両用灯具ユニット |
JP4766698B2 (ja) * | 2007-03-29 | 2011-09-07 | 株式会社小糸製作所 | 車輌用前照灯の灯具ユニット |
KR100896081B1 (ko) * | 2007-11-23 | 2009-05-18 | 에스엘 주식회사 | 차량용 전조등 |
JP5169665B2 (ja) * | 2008-09-17 | 2013-03-27 | 市光工業株式会社 | 車両用前照灯 |
JP5423159B2 (ja) * | 2009-06-04 | 2014-02-19 | スタンレー電気株式会社 | 車両用灯具 |
-
2009
- 2009-06-04 JP JP2009135505A patent/JP5305100B2/ja active Active
-
2010
- 2010-06-03 US US12/793,171 patent/US8092059B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US8092059B2 (en) | 2012-01-10 |
JP2010282843A (ja) | 2010-12-16 |
US20100309678A1 (en) | 2010-12-09 |
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