JP7046640B2 - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
- Publication number
- JP7046640B2 JP7046640B2 JP2018029129A JP2018029129A JP7046640B2 JP 7046640 B2 JP7046640 B2 JP 7046640B2 JP 2018029129 A JP2018029129 A JP 2018029129A JP 2018029129 A JP2018029129 A JP 2018029129A JP 7046640 B2 JP7046640 B2 JP 7046640B2
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- JP
- Japan
- Prior art keywords
- light
- light guide
- slit
- emitted
- led
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0011—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor with light guides for distributing the light between several lighting or signalling devices
-
- 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]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel 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
- F21S41/30—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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/249—Light guides with two or more light sources being coupled into the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- 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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- 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
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
- F21W2103/60—Projection of signs from lighting devices, e.g. symbols or information being projected onto the road
-
- 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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
Description
さらに、導光体10の長手方向の全長が本実施形態より短く、LED光源の数も少ない場合は、スリットの一定幅領域Cは省かれ、基端から変化幅領域Dを形成してもよい。
2(2a~2g)… 光源(LED光源)
10… 導光体
20… 導光部
30… 光入射部
31… 光入反射面
32… 第1光入射面
33… 第2光入射面
34… 第1光反射面
35… 第2光反射面
40… 光反射部
41… 第3光反射面
50… 光出射部
51… 光出射面
60、60´… スリット
61、61´… 側壁
62、62´… 側壁
63、63´… 先端部
64… 先端面
65… 間隔
Claims (6)
- 複数のLED光源と、
前記複数のLED光源の夫々からの光を取り込んで導光した光を出射する導光体と、を備え、
前記導光体は、前記複数のLED光源の夫々からの光を略平行光として取り込む光入射部と、前記光入射部から取り込まれた夫々の略平行光を互いに同一方向に導光する導光部と、前記導光部を導光された光を光出射部に向けて内部反射する光反射部と、前記光反射部で反射された光を外部に向けて出射する光出射部を有し、
前記導光部には、前記略平行光の導光方向に沿って延びる少なくとも1本のスリットが設けられ、
前記スリットは、前記導光部を厚み方向に貫通すると共に、前記複数のLED光源のうち前記導光部の最も光出射面側に位置するLED光源とそれに隣接するLED光源との間を前記光出射面に沿って直線状に延びており、直線状に延びるに従って幅が細くなる変化幅領域と、前記変化幅領域の先端部を形成する湾曲面形状の先端面とを有することを特徴とする車両用灯具。 - 前記スリットは、前記導光部を互いに隣り合って導光される夫々の略平行光の導光路間に設けら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。
- 前記導光部は、略三角形状で平板状を呈しており、前記三角形の各辺に対応する部分を前記光入射部、前記光反射部及び前記光出射部とし、前記光入射部と前記光出射部とが直角を挟んだ位置に位置すると共に前記光反射部が斜辺の位置に位置することを特徴とする請求項1又は請求項2に記載の車両用灯具。
- 前記スリットは、前記複数のLED光源が並ぶ方向に、複数並設されている請求項1~請求項3のいずれかに記載の車両用灯具。
- 前記スリットは、直線状に延びる方向に沿って複数設けられている請求項1~請求項4のいずれかに記載の車両用灯具。
- 前記スリットは、側壁のいずれか一方の面又は両面に光拡散処理が施されていることを特徴とする請求項1~請求項5のいずれかに記載の車両用灯具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018029129A JP7046640B2 (ja) | 2018-02-21 | 2018-02-21 | 車両用灯具 |
US16/281,126 US10775013B2 (en) | 2018-02-21 | 2019-02-21 | Vehicular light |
EP19158456.4A EP3531015B1 (en) | 2018-02-21 | 2019-02-21 | Vehicular light |
CN201910129061.0A CN110173662B (zh) | 2018-02-21 | 2019-02-21 | 车辆用灯具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018029129A JP7046640B2 (ja) | 2018-02-21 | 2018-02-21 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019145367A JP2019145367A (ja) | 2019-08-29 |
JP7046640B2 true JP7046640B2 (ja) | 2022-04-04 |
Family
ID=65576134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018029129A Active JP7046640B2 (ja) | 2018-02-21 | 2018-02-21 | 車両用灯具 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10775013B2 (ja) |
EP (1) | EP3531015B1 (ja) |
JP (1) | JP7046640B2 (ja) |
CN (1) | CN110173662B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110275243A (zh) * | 2019-06-20 | 2019-09-24 | 赛尔富电子有限公司 | 一种三面出光的光学元件以及带有该光学元件的货架灯 |
CN110953547B (zh) * | 2019-12-10 | 2022-08-12 | 东风汽车有限公司 | 用于车灯的厚壁件及车灯 |
JPWO2022176348A1 (ja) * | 2021-02-17 | 2022-08-25 | ||
CN113898921A (zh) * | 2021-09-30 | 2022-01-07 | 马瑞利汽车零部件(芜湖)有限公司 | 矩阵式分布的汽车信号灯光学结构及车灯 |
CN216693392U (zh) * | 2021-11-30 | 2022-06-07 | 法雷奥照明湖北技术中心有限公司 | 一种导光元件、照明装置和车辆 |
JP2023155612A (ja) * | 2022-04-11 | 2023-10-23 | スタンレー電気株式会社 | 車両用灯具 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009043663A (ja) | 2007-08-10 | 2009-02-26 | Minebea Co Ltd | 面状照明装置 |
JP2010129493A (ja) | 2008-11-28 | 2010-06-10 | Citizen Electronics Co Ltd | 光源装置及び電子機器 |
JP2012169170A (ja) | 2011-02-15 | 2012-09-06 | Stanley Electric Co Ltd | 車両用灯具 |
JP2017183287A (ja) | 2016-03-29 | 2017-10-05 | スタンレー電気株式会社 | 車両用灯具 |
Family Cites Families (9)
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EP0879991A3 (en) * | 1997-05-13 | 1999-04-21 | Matsushita Electric Industrial Co., Ltd. | Illuminating system |
TWI287117B (en) * | 2006-05-25 | 2007-09-21 | Ind Tech Res Inst | Light guide lens and light emitting diode package structure having the light guide lens |
US7714272B2 (en) * | 2006-09-28 | 2010-05-11 | Stanley Electric Co., Ltd. | Optical absolute rotary encoder |
JP5210061B2 (ja) * | 2008-07-10 | 2013-06-12 | 株式会社小糸製作所 | 灯具 |
DE102011119379A1 (de) * | 2011-11-25 | 2013-05-29 | Volkswagen Aktiengesellschaft | Beleuchtungsvorrichtung für ein Kraftfahrzeug |
JP5396498B2 (ja) | 2012-03-02 | 2014-01-22 | 株式会社エス・ケー・ジー | 発光装置 |
US10100995B2 (en) * | 2014-09-30 | 2018-10-16 | Maxell, Ltd. | Vehicular lighting apparatus |
FR3044744B1 (fr) * | 2015-12-08 | 2022-02-25 | Peugeot Citroen Automobiles Sa | Dispositif d’eclairage a guide de lumiere comprenant des trous polygonaux pour reflechir des photons |
JP2017228450A (ja) * | 2016-06-23 | 2017-12-28 | スタンレー電気株式会社 | 車両用灯具 |
-
2018
- 2018-02-21 JP JP2018029129A patent/JP7046640B2/ja active Active
-
2019
- 2019-02-21 EP EP19158456.4A patent/EP3531015B1/en active Active
- 2019-02-21 US US16/281,126 patent/US10775013B2/en active Active
- 2019-02-21 CN CN201910129061.0A patent/CN110173662B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009043663A (ja) | 2007-08-10 | 2009-02-26 | Minebea Co Ltd | 面状照明装置 |
JP2010129493A (ja) | 2008-11-28 | 2010-06-10 | Citizen Electronics Co Ltd | 光源装置及び電子機器 |
JP2012169170A (ja) | 2011-02-15 | 2012-09-06 | Stanley Electric Co Ltd | 車両用灯具 |
JP2017183287A (ja) | 2016-03-29 | 2017-10-05 | スタンレー電気株式会社 | 車両用灯具 |
Also Published As
Publication number | Publication date |
---|---|
CN110173662A (zh) | 2019-08-27 |
EP3531015B1 (en) | 2020-10-07 |
US20190257491A1 (en) | 2019-08-22 |
US10775013B2 (en) | 2020-09-15 |
EP3531015A1 (en) | 2019-08-28 |
JP2019145367A (ja) | 2019-08-29 |
CN110173662B (zh) | 2022-08-02 |
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