JP2005203135A - 導光体を用いたled灯具 - Google Patents
導光体を用いたled灯具 Download PDFInfo
- Publication number
- JP2005203135A JP2005203135A JP2004005675A JP2004005675A JP2005203135A JP 2005203135 A JP2005203135 A JP 2005203135A JP 2004005675 A JP2004005675 A JP 2004005675A JP 2004005675 A JP2004005675 A JP 2004005675A JP 2005203135 A JP2005203135 A JP 2005203135A
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- Prior art keywords
- light
- light guide
- lamp
- led
- reflected
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- 230000003287 optical effect Effects 0.000 claims description 27
- 230000005855 radiation Effects 0.000 abstract description 8
- 235000019646 color tone Nutrition 0.000 abstract 2
- 230000001678 irradiating effect Effects 0.000 description 10
- 238000009826 distribution Methods 0.000 description 6
- 238000005286 illumination Methods 0.000 description 6
- 230000004397 blinking Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
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- 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
- G02B6/0005—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 of the fibre type
- G02B6/0006—Coupling light into the fibre
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- 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
- B60Q1/0029—Spatial arrangement
- B60Q1/0041—Spatial arrangement of several lamps in relation to each other
- B60Q1/0052—Spatial arrangement of several lamps in relation to each other concentric
-
- 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
- B60Q1/0029—Spatial arrangement
- B60Q1/0041—Spatial arrangement of several lamps in relation to each other
- B60Q1/0058—Stacked, i.e. one lamp located behind the other in the optical axis direction
-
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
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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]
-
- 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
- F21S43/241—Light guides characterised by the shape of the light guide of complex 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
- 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
- F21S43/30—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
- F21S43/40—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
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
- F21L4/022—Pocket lamps
- F21L4/027—Pocket lamps the light sources being a LED
-
- 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
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Pinball Game Machines (AREA)
Abstract
【解決手段】本発明により、複数のLED3光源から放射された光を導光体4に入射させ、導光体4に形成された一次反射面6で内部反射(全反射)させて略平行光とし、以降略平行光のままで二次反射面8、および三次反射面12で内部反射(全反射)させて導光体4から出射させ、さらに反射鏡5で反射させて灯具20の略照射方向に導くようにした。このようにして光量を多くすることによって明るい灯具を実現した。さらに、異なる色調の光を発するLEDを配置することによって、異なった色調の光を同時にあるいは時間差を設けて放出できるようにした。
【選択図】 図1
Description
前記各LED光源から放射される光が全て同一種の光もしくは二種以上の光であることを特徴とするものである。
2 レンズ
3 LED
4 導光体
5 反射鏡
6 一次反射面
7 放物系曲面
8 二次反射面
9 傾斜系曲面
10 光入射面
11 大気層
12 三次反射面
13 傾斜系曲面
14 傾斜系曲面
15 光出射面
20 灯具
21a,21b LED
22a 第1一次反射面
22b 第2一次反射面
23a,23b 放物系曲面
24a,24b 光入射面
25a,25b 大気層
26a 第1二次反射面
26b 第2二次反射面
27a,27b 傾斜系曲面
28a 第1三次反射面
28b 第2三次反射面
29a,29b 傾斜系曲面
30a,30b 傾斜系曲面
31a,31b 光出射面
Claims (4)
- 複数のLED光源と、導光体と、反射鏡とを有し、前記各LEDから放射されて前記導光体に入射した光が、一次反射面、二次反射面および三次反射面で順次反射されて前記導光体から出射して前記反射鏡に向かい、該反射鏡で反射されて灯具の略照射方向に向かう光路を辿る灯具であって、前記各LEDから放射されて前記導光体に入射した光は前記一次反射面で反射されて略平行光となって以降の光路を略平行光のまま辿ることを特徴とする導光体を用いたLED灯具。
- 前記一次反射面はLED光源近傍を焦点とする放物系曲面であり、前記二次反射面は前記一次反射面で反射された光を受けて前記灯具の略照射方向に設けられた前記三次反射面に向ける傾斜系曲面であり、前記三次反射面は前記二次反射面で反射された光を受けて前記三次反射面の周囲に設けられた反射鏡に向ける傾斜系曲面であり、前記反射鏡は前記三次反射面で反射された光を受けて前記灯具の略照射方向に向ける傾斜系曲面であることを特徴とする請求項1に記載の導光体を用いたLED灯具。
- 前記各LED光源から放射される光が全て同一種の光もしくは二種以上の光であることを特徴とする請求項1または2の何れか1項に記載の導光体を用いたLED灯具。
- 前記各LED光源において同一種の光を放射するLED群毎に独立して点滅制御できることを特徴とする請求項3に記載の導光体を用いたLED灯具。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004005675A JP4300123B2 (ja) | 2004-01-13 | 2004-01-13 | 導光体を用いたled灯具 |
US11/033,555 US7134768B2 (en) | 2004-01-13 | 2005-01-12 | LED lamp with light guide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004005675A JP4300123B2 (ja) | 2004-01-13 | 2004-01-13 | 導光体を用いたled灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005203135A true JP2005203135A (ja) | 2005-07-28 |
JP4300123B2 JP4300123B2 (ja) | 2009-07-22 |
Family
ID=34737240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004005675A Expired - Fee Related JP4300123B2 (ja) | 2004-01-13 | 2004-01-13 | 導光体を用いたled灯具 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7134768B2 (ja) |
JP (1) | JP4300123B2 (ja) |
Cited By (21)
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JP2007188669A (ja) * | 2006-01-11 | 2007-07-26 | Stanley Electric Co Ltd | 照明装置 |
JP2007275387A (ja) * | 2006-04-10 | 2007-10-25 | Sanyo Product Co Ltd | 遊技機 |
JP2007311352A (ja) * | 2006-05-16 | 2007-11-29 | Valeo Vision | 自動車用照明及び/又は信号用装置 |
JP2008034124A (ja) * | 2006-07-26 | 2008-02-14 | Stanley Electric Co Ltd | Led照明灯具 |
JP2008146948A (ja) * | 2006-12-07 | 2008-06-26 | Ichikoh Ind Ltd | 車両用灯具 |
JP2008147136A (ja) * | 2006-12-13 | 2008-06-26 | Stanley Electric Co Ltd | 車両用灯具 |
JP2008307081A (ja) * | 2007-06-12 | 2008-12-25 | Sankyo Co Ltd | スロットマシン |
US7513666B2 (en) | 2007-03-28 | 2009-04-07 | Sharp Kabushiki Kaisha | LED lighting apparatus |
JP2010046195A (ja) * | 2008-08-20 | 2010-03-04 | Fujishoji Co Ltd | 遊技機 |
JP2010140676A (ja) * | 2008-12-09 | 2010-06-24 | Stanley Electric Co Ltd | 車両用灯具、及び、インナーレンズ |
JP2011224253A (ja) * | 2010-04-22 | 2011-11-10 | Kyoraku Sangyo Kk | レンズユニット、イルミネーションユニット、遊技盤ユニット及びパチンコ遊技機 |
JP2011224251A (ja) * | 2010-04-22 | 2011-11-10 | Kyoraku Sangyo Kk | 導光体、イルミネーションユニット、遊技盤ユニット及びパチンコ遊技機 |
JP2011224252A (ja) * | 2010-04-22 | 2011-11-10 | Kyoraku Sangyo Kk | アウターレンズユニット、イルミネーションユニット、遊技盤ユニット及びパチンコ遊技機 |
JP2012161474A (ja) * | 2011-02-07 | 2012-08-30 | Fukushima Industries Corp | ショーケースの照明装置およびショーケース |
JP2014060177A (ja) * | 2013-12-27 | 2014-04-03 | Stanley Electric Co Ltd | 車両用ランプ |
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JP2016157569A (ja) * | 2015-02-24 | 2016-09-01 | 東芝ライテック株式会社 | 車両用灯具 |
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