JP5394700B2 - 車両用前照灯 - Google Patents
車両用前照灯 Download PDFInfo
- Publication number
- JP5394700B2 JP5394700B2 JP2008291396A JP2008291396A JP5394700B2 JP 5394700 B2 JP5394700 B2 JP 5394700B2 JP 2008291396 A JP2008291396 A JP 2008291396A JP 2008291396 A JP2008291396 A JP 2008291396A JP 5394700 B2 JP5394700 B2 JP 5394700B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- distribution pattern
- light distribution
- light guide
- edge
- 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
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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
-
- 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]
- F21S41/147—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
-
- 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
- F21S41/40—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
- F21S41/20—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
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- 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
図1は、第1の実施形態に係る右前照灯ユニット10Rの構成を示す図である。図1では、理解を容易にするために右前照灯ユニット10Rを水平面で切断して上方から見た断面図を示している。右前照灯ユニット10Rは、車両(図示せず)進行方向に見て前面右側に配置される。なお、車両の前面左側には、左前照灯ユニット(図示せず。以下、「左前照灯ユニット10L」という)が設けられる。左前照灯ユニット10Lは右前照灯ユニット10Rと左右対称に構成されており、以下、右前照灯ユニット10Rについて説明することで左前照灯ユニット10Lの説明は省略する。
図8は、第2の実施形態に係る右前照灯ユニット100Rの構成を示す図である。図8では、理解を容易にするために右前照灯ユニット100Rを水平面で切断して上方から見た断面図を示している。右前照灯ユニット100Rは、車両(図示せず)進行方向に見て前面右側に配置される。なお、車両の前面左側には、左前照灯ユニット(図示せず。以下、「左前照灯ユニット100L」という)が設けられる。左前照灯ユニット100Lは右前照灯ユニット100Rと左右対称に構成されており、以下、右前照灯ユニット100Rについて説明することで左前照灯ユニット100Lの説明は省略する。また、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。
Claims (5)
- 各々による被投影像が投影されて形成される分割配光パターンが互いに隣接し、各々の分割配光パターンの縁部のうち第1縁部が互いに重なり合って境界を形成すると共に、各々の分割配光パターンが集合して形成されるべき集合配光パターンの外縁の一部を第2縁部が形成するよう、投影レンズの後方焦点面に各々が被投影像を形成する一対の像形成手段を備え、
前記一対の像形成手段の少なくとも一方は、分割配光パターンのうち第1縁部終端および第2縁部終端の双方に近接するコーナー部が集合配光パターンの外縁に沿う方向に膨らむよう、被投影像を形成することを特徴とする車両用前照灯。 - 前記一対の像形成手段の各々は、集合配光パターンの水平な外縁の一部を第2縁部が形成するよう被投影像を形成し、
前記一対の像形成手段の少なくとも一方は、前記コーナー部が水平方向に膨らむよう被投影像を形成することを特徴とする請求項1に記載の車両用前照灯。 - 前記一対の像形成手段の各々は、集合配光パターンの下方の外縁の一部を第2縁部が形成するよう被投影像を形成することを特徴とする請求項2に記載の車両用前照灯。
- 前記一対の像形成手段の少なくとも一方は、前記コーナー部が水平線より下方において水平方向に膨らむよう被投影像を形成することを特徴とする請求項3に記載の車両用前照灯。
- 前記一対の像形成手段は、
第1光源と、第1光源が発する光の一部を遮って第1被投影像を形成するシェーディング部材と、
第2光源と、第2光源が発する光を反射して第2被投影像を形成する反射面と、
を有す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車両用前照灯。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008291396A JP5394700B2 (ja) | 2008-11-13 | 2008-11-13 | 車両用前照灯 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008291396A JP5394700B2 (ja) | 2008-11-13 | 2008-11-13 | 車両用前照灯 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013215249A Division JP5698330B2 (ja) | 2013-10-16 | 2013-10-16 | 車両用前照灯 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010118274A JP2010118274A (ja) | 2010-05-27 |
JP5394700B2 true JP5394700B2 (ja) | 2014-01-22 |
Family
ID=42305820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008291396A Expired - Fee Related JP5394700B2 (ja) | 2008-11-13 | 2008-11-13 | 車両用前照灯 |
Country Status (1)
Country | Link |
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JP (1) | JP5394700B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5592183B2 (ja) * | 2010-07-16 | 2014-09-17 | 株式会社小糸製作所 | 車両用灯具 |
JP5668937B2 (ja) * | 2011-09-13 | 2015-02-12 | 三菱自動車工業株式会社 | 前照灯制御装置 |
JP5698330B2 (ja) * | 2013-10-16 | 2015-04-08 | 株式会社小糸製作所 | 車両用前照灯 |
US10363860B2 (en) | 2013-12-12 | 2019-07-30 | Mitsubishi Electric Corporation | Headlight module and headlight apparatus |
DE102014215785B4 (de) | 2014-08-08 | 2016-03-31 | Automotive Lighting Reutlingen Gmbh | Projektionslichtmodul für einen Kraftfahrzeugscheinwerfer |
US11648870B2 (en) | 2020-02-26 | 2023-05-16 | Koito Manufacturing Co., Ltd. | Vehicle headlamp |
FR3130011B1 (fr) * | 2021-12-07 | 2024-04-05 | Valeo Vision | Dispositif lumineux d’un véhicule automobile |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2524860Y2 (ja) * | 1991-11-19 | 1997-02-05 | 株式会社小糸製作所 | 自動車用ヘッドランプ |
JP4256964B2 (ja) * | 1998-12-24 | 2009-04-22 | スタンレー電気株式会社 | 車両用灯具 |
JP4624257B2 (ja) * | 2005-12-28 | 2011-02-02 | 株式会社小糸製作所 | 車両用灯具 |
JP4663548B2 (ja) * | 2006-02-24 | 2011-04-06 | 株式会社小糸製作所 | 車両用前照灯の灯具ユニット |
JP2008123753A (ja) * | 2006-11-09 | 2008-05-29 | Koito Mfg Co Ltd | 車両用灯具ユニット |
-
2008
- 2008-11-13 JP JP2008291396A patent/JP5394700B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2010118274A (ja) | 2010-05-27 |
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