JP2014241220A - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
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- JP2014241220A JP2014241220A JP2013122950A JP2013122950A JP2014241220A JP 2014241220 A JP2014241220 A JP 2014241220A JP 2013122950 A JP2013122950 A JP 2013122950A JP 2013122950 A JP2013122950 A JP 2013122950A JP 2014241220 A JP2014241220 A JP 2014241220A
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- light
- optical surface
- projection lens
- light guide
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- 230000003287 optical effect Effects 0.000 claims abstract description 122
- 230000004075 alteration Effects 0.000 claims description 26
- 206010010071 Coma Diseases 0.000 description 10
- 206010073261 Ovarian theca cell tumour Diseases 0.000 description 5
- 208000001644 thecoma Diseases 0.000 description 5
- 238000005286 illumination Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
-
- 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
- F21S41/16—Laser 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
- F21S41/24—Light guides
-
- 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
- F21S41/26—Elongated lenses
-
- 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
- F21S41/265—Composite lenses; Lenses with a patch-like shape
-
- 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
- F21S41/27—Thick lenses
-
- 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
-
- 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
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
導光体を用いたプロジェクタ型の車両用灯具において、導光体内部を導光される光が出射面において内面反射されて光量ロスが発生するのを抑制する。
【解決手段】
光源と、投影レンズと、前記光源からの光を前記投影レンズの後側焦点近傍へ集光させた後、前記投影レンズへ導光するように構成された導光体と、を備えた車両用灯具において、前記導光体は、当該導光体内部を導光される前記光源からの光が出射する出射面としての第一の光学面を含んでおり、前記投影レンズは、少なくとも前記第一の光学面と第二の光学面と第三の光学面とを含み、かつ、前記後側焦点が前記第一の光学面の後方に位置する投影レンズとして構成されている。
【選択図】図2
Description
Claims (4)
- 光源と、投影レンズと、前記光源からの光を前記投影レンズの後側焦点近傍へ集光させた後、前記投影レンズへ導光するように構成された導光体と、を備えた車両用灯具において、
前記導光体は、当該導光体内部を導光される前記光源からの光が出射する出射面としての第一の光学面を含んでおり、
前記投影レンズは、少なくとも前記第一の光学面と第二の光学面と第三の光学面とを含み、かつ、前記後側焦点が前記第一の光学面の後方に位置する投影レンズとして構成されている車両用灯具。 - 前記第一の光学面、前記第二の光学面及び前記第三の光学面は、前記投影レンズの球面収差が除去され、かつ、前記投影レンズの前記光源側の主面が前記後側焦点を中心とする球に略一致するように構成されている請求項1に記載の車両用灯具。
- 前記第一の光学面は、当該第一の光学面から出射する光の出射方向に向かって凸の曲率の光学面として構成されており、
前記第二の光学面は、前記第一の光学面から出射する光の出光方向に向かって凹の曲率の光学面として構成されている請求項1又は2に記載の車両用灯具。 - 前記導光体は、前記後側焦点近傍に配置された、カットオフラインを形成するためのエッジ部と、前記エッジ部から後方に向かって延びる平坦部と、を含んでいる請求項1から3のいずれか1項に記載の車両用灯具。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013122950A JP6131724B2 (ja) | 2013-06-11 | 2013-06-11 | 車両用灯具 |
EP14171925.2A EP2818792B1 (en) | 2013-06-11 | 2014-06-11 | Vehicle lighting unit |
US14/301,687 US9400089B2 (en) | 2013-06-11 | 2014-06-11 | Vehicle lighting unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013122950A JP6131724B2 (ja) | 2013-06-11 | 2013-06-11 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014241220A true JP2014241220A (ja) | 2014-12-25 |
JP6131724B2 JP6131724B2 (ja) | 2017-05-24 |
Family
ID=51032915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013122950A Active JP6131724B2 (ja) | 2013-06-11 | 2013-06-11 | 車両用灯具 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9400089B2 (ja) |
EP (1) | EP2818792B1 (ja) |
JP (1) | JP6131724B2 (ja) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017084557A (ja) * | 2015-10-27 | 2017-05-18 | スタンレー電気株式会社 | レンズ体、レンズ結合体及び車両用灯具 |
KR20180003469A (ko) * | 2016-06-30 | 2018-01-09 | 오토모티브 라이팅 이탈리아 에스.피.에이 | 유백광 효과를 구비하는 라이트 방출부를 포함하는 차량 라이트 |
KR20180101419A (ko) * | 2016-09-30 | 2018-09-12 | 에이취.에이.오토모티브 시스템스 인코퍼레이티드 | 근거리 빔 자동차 램프 모듈용 집광기 |
KR20190036807A (ko) * | 2017-09-28 | 2019-04-05 | 에스엘 주식회사 | 차량용 램프 및 이를 포함하는 램프 어셈블리 |
KR20200058126A (ko) * | 2018-11-19 | 2020-05-27 | 에스엘 주식회사 | 차량용 램프 |
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US10753564B2 (en) | 2017-12-25 | 2020-08-25 | Panasonic Intellectual Property Management Co., Ltd. | Vehicle headlamp |
US10962190B2 (en) | 2016-07-15 | 2021-03-30 | Panasonic Intellectual Property Management Co., Ltd. | Lighting device and vehicular headlamp |
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EP3150905B1 (en) * | 2014-05-23 | 2018-09-19 | Stanley Electric Co., Ltd. | Lens body, combined lens body, and vehicular lamp fitting |
DE112014006794B4 (de) * | 2014-07-08 | 2022-03-10 | Mitsubishi Electric Corporation | Scheinwerfermodul und Scheinwerfereinrichtung |
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AT518109B1 (de) * | 2016-01-14 | 2017-11-15 | Zkw Group Gmbh | Beleuchtungseinheit für einen Kraftfahrzeugscheinwerfer zum Erzeugen eines Lichtbündels mit Hell-Dunkel-Grenze |
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2013
- 2013-06-11 JP JP2013122950A patent/JP6131724B2/ja active Active
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2014
- 2014-06-11 US US14/301,687 patent/US9400089B2/en active Active
- 2014-06-11 EP EP14171925.2A patent/EP2818792B1/en active Active
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Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017084557A (ja) * | 2015-10-27 | 2017-05-18 | スタンレー電気株式会社 | レンズ体、レンズ結合体及び車両用灯具 |
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US9400089B2 (en) | 2016-07-26 |
US20140362596A1 (en) | 2014-12-11 |
EP2818792A3 (en) | 2015-11-18 |
JP6131724B2 (ja) | 2017-05-24 |
EP2818792A2 (en) | 2014-12-31 |
EP2818792B1 (en) | 2021-02-24 |
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