JP2019040677A - 車両用前照灯 - Google Patents
車両用前照灯 Download PDFInfo
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- JP2019040677A JP2019040677A JP2017159659A JP2017159659A JP2019040677A JP 2019040677 A JP2019040677 A JP 2019040677A JP 2017159659 A JP2017159659 A JP 2017159659A JP 2017159659 A JP2017159659 A JP 2017159659A JP 2019040677 A JP2019040677 A JP 2019040677A
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- Prior art keywords
- incident
- region
- light
- light source
- vehicle
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- 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
- F21S41/10—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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- 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
- F21S41/322—Optical layout thereof the reflector using total internal reflection
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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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- 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
Description
Claims (6)
- 光源と、
前記光源からの光を反射するリフレクタと、
前記リフレクタによって反射された前記光が入射する第1入射領域と前記光源からの光が直接入射する第2入射領域とが設定される入射面と、前記第1入射領域及び前記第2入射領域に入射した光を車両前方の照射領域に出射する出射面とを有し、前記入射面の略全面に前記光源側に突出する複数の湾曲面が格子状に配置されたレンズと、を備え、
前記入射面は、前記レンズ内で前記出射面により反射されて前記入射面に戻る光を前記光源側に出射させる形状の前記湾曲面が複数設けられたグレア抑制領域を有し、
前記第1入射領域は、前記グレア抑制領域の外側に設定される
車両用前照灯。 - 前記グレア抑制領域は、前記入射面のうち前記光軸との交点を含まない範囲に設けられ、
前記第1入射領域は、前記入射面のうち前記光軸と交点を含む範囲に設定される
請求項1に記載の車両用前照灯。 - 前記グレア抑制領域は、前記入射面のうち車両搭載状態における車両外側の上部に配置される
請求項1又は請求項2に記載の車両用前照灯。 - 前記グレア抑制領域に配置される前記湾曲面は、前記グレア抑制領域の外側に配置される前記湾曲面よりも突出方向の寸法が大きい
請求項1から請求項3のいずれか一項に記載の車両用前照灯。 - 前記グレア抑制領域に配置される前記湾曲面は、前記レンズの光軸から離れるに従って突出方向の寸法が大きくなっている
請求項1から請求項4のいずれか一項に記載の車両用前照灯。 - 前記第2入射領域は、少なくとも一部が前記グレア抑制領域に設定され、
前記レンズは、前記グレア抑制領域内において前記第2入射領域内に配置される前記湾曲面に入射する前記光を前記出射面から前記照射領域の左側端部の上方に出射する
請求項1又は請求項5に記載の車両用前照灯。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017159659A JP6996162B2 (ja) | 2017-08-22 | 2017-08-22 | 車両用前照灯 |
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JP2017159659A JP6996162B2 (ja) | 2017-08-22 | 2017-08-22 | 車両用前照灯 |
Publications (2)
Publication Number | Publication Date |
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JP2019040677A true JP2019040677A (ja) | 2019-03-14 |
JP6996162B2 JP6996162B2 (ja) | 2022-02-21 |
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JP2017159659A Active JP6996162B2 (ja) | 2017-08-22 | 2017-08-22 | 車両用前照灯 |
Country Status (1)
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JP (1) | JP6996162B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4019829A4 (en) * | 2019-08-20 | 2023-08-30 | Ichikoh Industries, Ltd. | LENS FOR CAR HEADLIGHTS AND CAR HEADLIGHTS |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5995503U (ja) * | 1982-12-17 | 1984-06-28 | 市光工業株式会社 | 自動車用灯具のレンズ |
JP2014157733A (ja) * | 2013-02-15 | 2014-08-28 | Ichikoh Ind Ltd | 車両用灯具 |
JP2016213023A (ja) * | 2015-05-07 | 2016-12-15 | 市光工業株式会社 | 車両用灯具 |
JP2017120745A (ja) * | 2015-12-28 | 2017-07-06 | パナソニックIpマネジメント株式会社 | 照明装置及び自動車 |
-
2017
- 2017-08-22 JP JP2017159659A patent/JP6996162B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5995503U (ja) * | 1982-12-17 | 1984-06-28 | 市光工業株式会社 | 自動車用灯具のレンズ |
JP2014157733A (ja) * | 2013-02-15 | 2014-08-28 | Ichikoh Ind Ltd | 車両用灯具 |
JP2016213023A (ja) * | 2015-05-07 | 2016-12-15 | 市光工業株式会社 | 車両用灯具 |
JP2017120745A (ja) * | 2015-12-28 | 2017-07-06 | パナソニックIpマネジメント株式会社 | 照明装置及び自動車 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4019829A4 (en) * | 2019-08-20 | 2023-08-30 | Ichikoh Industries, Ltd. | LENS FOR CAR HEADLIGHTS AND CAR HEADLIGHTS |
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JP6996162B2 (ja) | 2022-02-21 |
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