JP6203519B2 - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
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- JP6203519B2 JP6203519B2 JP2013083556A JP2013083556A JP6203519B2 JP 6203519 B2 JP6203519 B2 JP 6203519B2 JP 2013083556 A JP2013083556 A JP 2013083556A JP 2013083556 A JP2013083556 A JP 2013083556A JP 6203519 B2 JP6203519 B2 JP 6203519B2
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- light
- incident
- light guide
- light source
- plane
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- 238000009792 diffusion process Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 45
- 238000012986 modification Methods 0.000 description 45
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin 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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
-
- 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
- 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
-
- 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
- F21S43/249—Light guides with two or more light sources being coupled into the light guide
-
- 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
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- 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
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
- F21S43/315—Optical layout thereof 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
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
-
- 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
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
-
- 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
- G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
- G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Description
光源と、この光源からの出射光を後面から入射させて前面から出射させる導光体と、を備えてなる車両用灯具において、
上記導光体の後面が、前後方向に延びる第1の平面内において、上記光源からの光を前方側へ屈折させるようにして入射させる第1入射部と、この第1入射部の両側において上記光源からの光を側方側へ屈折させるようにして入射させる第2入射部と、この第2入射部から入射した上記光源からの光を前方へ向けて内面反射させる反射部とを備えており、
上記導光体が、上記第1の平面に沿って延びる導光板として構成されており、
上記第1入射部が、上記第1の平面内において、上記光源からの光を拡散光として入射させるように構成されており、
上記反射部が、上記第1の平面内において、上記第2入射部から入射した上記光源からの光を拡散光として反射させるように構成されており、
上記第1入射部の鉛直断面形状が凸曲線状に設定されている、ことを特徴とするものである。
12 ランプボディ
14 透光カバー
20、120、220、320、420、520 導光体
20A、120A、220A 光制御部
20A1、120A1、220A1、320A1、420A1、520A1 第1入射部
20A1s、20A3s、120A1s、120A3s 拡散レンズ素子
20A2、120A2、220A2 第2入射部
20A3、120A3、220A3、320A3、420A3 反射部
20a、120a、220a、320a、420a、520a 前面
20b、120b、120b、320b、420b、520b 後面
20c フランジ部
20s、120s、220s、320s、420s、520s 拡散レンズ素子(光拡散面)
22 光源
24 光源支持部材
130 レンズ
130a 前面
130b 後面
130c 両端面
132 レンズ支持部材
220d、320d、420d、520d 上面
220e、320e、420e、520e 下面
Ax 軸線
D 暗部
Claims (7)
- 光源と、この光源からの出射光を後面から入射させて前面から出射させる導光体と、を備えてなる車両用灯具において、
上記導光体の後面が、前後方向に延びる第1の平面内において、上記光源からの光を前方側へ屈折させるようにして入射させる第1入射部と、この第1入射部の両側において上記光源からの光を側方側へ屈折させるようにして入射させる第2入射部と、この第2入射部から入射した上記光源からの光を前方へ向けて内面反射させる反射部とを備えており、
上記導光体が、上記第1の平面に沿って延びる導光板として構成されており、
上記第1入射部が、上記第1の平面内において、上記光源からの光を拡散光として入射させるように構成されており、
上記反射部が、上記第1の平面内において、上記第2入射部から入射した上記光源からの光を拡散光として反射させるように構成されており、
上記第1入射部の鉛直断面形状が凸曲線状に設定されている、ことを特徴とする車両用灯具。 - 上記反射部の鉛直断面形状が凸曲線状に設定されている、ことを特徴とする請求項1記載の車両用灯具。
- 上記光源と上記導光体との間に、上記光源を囲むようにしてレンズが配置されている、ことを特徴とする請求項1または2記載の車両用灯具。
- 上記導光体の後面に、上記第1入射部、上記第2入射部および上記反射部が上記第1の平面に沿って複数組形成されており、
上記各組の第1入射部、第2入射部および反射部が、車幅方向外側に位置するものほど後方側に変位して配置されており、
上記光源が、上記各組の第1入射部、第2入射部および反射部毎に配置されており、かつ、車幅方向外側に位置するものほど後方側に変位して配置されている、ことを特徴とする請求項1〜3いずれか記載の車両用灯具。 - 上記導光体の前面が光拡散面として構成されている、ことを特徴とする請求項1〜4いずれか記載の車両用灯具。
- 上記導光体が、該導光体の左右両端部に形成された左右1対のフランジ部においてランプボディに支持されている、ことを特徴とする請求項1〜5いずれか記載の車両用灯具。
- 上記導光体の上面および下面が、前方へ向けて徐々に上下幅が狭まるようにテーパ状に形成されている、ことを特徴とする請求項1〜6いずれか記載の車両用灯具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013083556A JP6203519B2 (ja) | 2012-09-13 | 2013-04-12 | 車両用灯具 |
EP13183698.3A EP2708800A3 (en) | 2012-09-13 | 2013-09-10 | Vehicular lamp |
US14/023,818 US20140071703A1 (en) | 2012-09-13 | 2013-09-11 | Vehicular lamp |
CN201310414112.7A CN103672659B (zh) | 2012-09-13 | 2013-09-12 | 车辆用灯具 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012201926 | 2012-09-13 | ||
JP2012201926 | 2012-09-13 | ||
JP2013083556A JP6203519B2 (ja) | 2012-09-13 | 2013-04-12 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014075331A JP2014075331A (ja) | 2014-04-24 |
JP6203519B2 true JP6203519B2 (ja) | 2017-09-27 |
Family
ID=49212573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013083556A Active JP6203519B2 (ja) | 2012-09-13 | 2013-04-12 | 車両用灯具 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140071703A1 (ja) |
EP (1) | EP2708800A3 (ja) |
JP (1) | JP6203519B2 (ja) |
CN (1) | CN103672659B (ja) |
Cited By (1)
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KR102688695B1 (ko) * | 2019-11-29 | 2024-07-26 | 에스엘 주식회사 | 차량용 램프 |
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JP6127538B2 (ja) * | 2013-01-25 | 2017-05-17 | 市光工業株式会社 | 車両用灯具 |
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- 2013-04-12 JP JP2013083556A patent/JP6203519B2/ja active Active
- 2013-09-10 EP EP13183698.3A patent/EP2708800A3/en not_active Withdrawn
- 2013-09-11 US US14/023,818 patent/US20140071703A1/en not_active Abandoned
- 2013-09-12 CN CN201310414112.7A patent/CN103672659B/zh active Active
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KR102688695B1 (ko) * | 2019-11-29 | 2024-07-26 | 에스엘 주식회사 | 차량용 램프 |
Also Published As
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EP2708800A2 (en) | 2014-03-19 |
CN103672659A (zh) | 2014-03-26 |
US20140071703A1 (en) | 2014-03-13 |
JP2014075331A (ja) | 2014-04-24 |
CN103672659B (zh) | 2016-08-17 |
EP2708800A3 (en) | 2018-04-04 |
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