JP7277004B2 - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
- Publication number
- JP7277004B2 JP7277004B2 JP2018117933A JP2018117933A JP7277004B2 JP 7277004 B2 JP7277004 B2 JP 7277004B2 JP 2018117933 A JP2018117933 A JP 2018117933A JP 2018117933 A JP2018117933 A JP 2018117933A JP 7277004 B2 JP7277004 B2 JP 7277004B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- light control
- control surface
- guide plate
- emitted
- 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
- 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
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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
- 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]
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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
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0018—Redirecting means on the surface 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
- G02B6/0033—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
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
Claims (6)
- 表面とその反対側の裏面とを含む導光板と、
前記導光板により導光される光を発光する光源と、を備え、
前記表面は、複数の第1光制御面を含み、
前記裏面は、前記複数の第1光制御面それぞれが対応する複数の第2光制御面と、前記複数の第2光制御面のうち互いに隣接する2つの第2光制御面の間に配置された複数の凹部と、を含み、
前記複数の第1光制御面、前記複数の第2光制御面及び前記複数の凹部は、それぞれ、第1方向に延び、かつ、並列に配置されており、
前記光源は、前記導光板により前記第1方向に導光され、前記第2光制御面で内面反射され、当該第2光制御面に対応する前記第1光制御面から出射する光を発光し、
前記第1光制御面は、当該第1光制御面から屈折して出射する前記光源からの光の水平方向又は鉛直方向の出射角が特定の角度となるように構成された屈折面であり、
前記第2光制御面は、前記第1光制御面から出射する前記光源からの光の鉛直方向又は水平方向の出射角が特定の角度となるように前記光源からの光を内面反射し、当該第2光制御面に対応する前記第1光制御面に向かうよう偏向する反射面であり、
前記複数の凹部は、前記複数の第1光制御面のうちある第1光制御面と前記ある第1光制御面に対して第1の側に隣接する他の第1光制御面との交点と、前記ある第1光制御面に対応する前記第2光制御面に対して前記第1の側に隣接する他の第2光制御面の前記第1の側と反対の第2の側の端点と、を結んだ第1の直線と、前記交点と、前記ある第1光制御面に対応する前記第2光制御面の前記第1の側の端点と、を結んだ第2の直線との間の部分に配置され、前記第2光制御面で内面反射された前記光源からの光のうち、当該第2光制御面に対応する前記第1光制御面の隣の第1光制御面に向かう光を前記当該第2光制御面に対応する前記第1光制御面の方向に内面反射する車両用灯具。 - 前記第1光制御面は、前記第1方向に直交する平面による断面が光出射方向に向かって凸の円弧状の面である請求項1に記載の車両用灯具。
- 前記第1光制御面は、前記凸の円弧状の面の焦点から当該光制御面への方向に向かう前記反射面で反射された光が当該第1光制御面から屈折して出射する際の水平方向又は鉛直方向の出射角が特定の角度となるように構成された面であり、
前記焦点は、前記第2光制御面の外側に設定されている請求項2に記載の車両用灯具。 - 前記凹部は、前記導光板のうち、前記第2光制御面で内面反射された前記光源からの光のうち、前記第2光制御面に対応する前記第1光制御面に直接向かう光を遮らない部分に設けられる請求項1から3のいずれか1項に記載の車両用灯具。
- 前記第2光制御面は、複数のレンズカットを含み、
前記複数のレンズカットは、前記第1方向に直交する第2方向に延び、かつ、並列に配置された複数のV溝である請求項1から4のいずれか1項に記載の車両用灯具。 - 前記導光板は、上下方向及び左右方向のうち少なくとも一方に湾曲している請求項1から5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 |
---|---|---|---|
JP2018117933A JP7277004B2 (ja) | 2018-06-21 | 2018-06-21 | 車両用灯具 |
US16/438,035 US10738959B2 (en) | 2018-06-21 | 2019-06-11 | Vehicular lamp fitting |
EP19181380.7A EP3587909B1 (en) | 2018-06-21 | 2019-06-19 | Vehicular lamp fitting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018117933A JP7277004B2 (ja) | 2018-06-21 | 2018-06-21 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019220384A JP2019220384A (ja) | 2019-12-26 |
JP7277004B2 true JP7277004B2 (ja) | 2023-05-18 |
Family
ID=66999673
Family Applications (1)
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JP2018117933A Active JP7277004B2 (ja) | 2018-06-21 | 2018-06-21 | 車両用灯具 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10738959B2 (ja) |
EP (1) | EP3587909B1 (ja) |
JP (1) | JP7277004B2 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014093265A (ja) | 2012-11-06 | 2014-05-19 | Toppan Printing Co Ltd | 導光体、照明装置、表示装置 |
JP2018063890A (ja) | 2016-10-13 | 2018-04-19 | 株式会社小糸製作所 | 灯具 |
Family Cites Families (17)
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JPS5943234U (ja) | 1982-09-14 | 1984-03-21 | セントラル自動車株式会社 | ランプカバ− |
DE20318691U1 (de) | 2003-12-03 | 2004-02-26 | Sidler Gmbh & Co. | Leuchte |
JP4290601B2 (ja) | 2004-05-17 | 2009-07-08 | 株式会社小糸製作所 | 車両用灯具ユニットおよび車両用灯具 |
TWM317025U (en) * | 2007-02-09 | 2007-08-11 | K Bridge Electronics Co Ltd | Backlight module |
CN101295038A (zh) * | 2007-04-27 | 2008-10-29 | 鸿富锦精密工业(深圳)有限公司 | 背光模组及其光学板 |
US7568828B2 (en) * | 2007-11-05 | 2009-08-04 | Radiant Opto-Electronics Corp. | Light guide plate with compensated emission light field |
CN101551479A (zh) * | 2008-04-01 | 2009-10-07 | 鸿富锦精密工业(深圳)有限公司 | 棱镜片 |
KR101499847B1 (ko) | 2008-07-03 | 2015-03-09 | 삼성디스플레이 주식회사 | 도광판 및 이를 포함하는 백라이트 유닛 |
WO2010003273A1 (zh) * | 2008-07-08 | 2010-01-14 | 海立尔股份有限公司 | 可挠式背光模块结构 |
FR2948174A1 (fr) | 2009-07-17 | 2011-01-21 | Franck Andre Marie Guigan | Paroi lumineuse |
TW201323783A (zh) * | 2011-12-12 | 2013-06-16 | Tyc Brother Ind Co Ltd | 車用之導光裝置 |
JP2015092434A (ja) * | 2012-02-24 | 2015-05-14 | シャープ株式会社 | バックライトユニット及び液晶表示装置 |
DE102012221389B4 (de) | 2012-11-22 | 2019-08-22 | Automotive Lighting Reutlingen Gmbh | Kraftfahrzeugleuchte mit einem Lichtleiter und einer durch den Lichtleiter hindurch sichtbaren Blende |
TWI472817B (zh) * | 2013-04-30 | 2015-02-11 | Radiant Opto Electronics Corp | A light guide means and a backlight module having the light guide means |
US9046225B2 (en) * | 2013-08-16 | 2015-06-02 | General Electric Company | Lighting system with improved illumination distribution |
JP6311988B2 (ja) * | 2014-10-21 | 2018-04-18 | オムロン株式会社 | 導光板及び面光源装置 |
JP6758961B2 (ja) | 2016-07-06 | 2020-09-23 | 株式会社小糸製作所 | 灯具 |
-
2018
- 2018-06-21 JP JP2018117933A patent/JP7277004B2/ja active Active
-
2019
- 2019-06-11 US US16/438,035 patent/US10738959B2/en active Active
- 2019-06-19 EP EP19181380.7A patent/EP3587909B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014093265A (ja) | 2012-11-06 | 2014-05-19 | Toppan Printing Co Ltd | 導光体、照明装置、表示装置 |
JP2018063890A (ja) | 2016-10-13 | 2018-04-19 | 株式会社小糸製作所 | 灯具 |
Also Published As
Publication number | Publication date |
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EP3587909A1 (en) | 2020-01-01 |
EP3587909B1 (en) | 2022-09-14 |
US20190390837A1 (en) | 2019-12-26 |
JP2019220384A (ja) | 2019-12-26 |
US10738959B2 (en) | 2020-08-11 |
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