JP6517078B2 - 車両用灯具 - Google Patents
車両用灯具 Download PDFInfo
- Publication number
- JP6517078B2 JP6517078B2 JP2015092165A JP2015092165A JP6517078B2 JP 6517078 B2 JP6517078 B2 JP 6517078B2 JP 2015092165 A JP2015092165 A JP 2015092165A JP 2015092165 A JP2015092165 A JP 2015092165A JP 6517078 B2 JP6517078 B2 JP 6517078B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- light guide
- incident
- light emitting
- normal
- 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.)
- Active
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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
- F21S43/20—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
- F21S43/236—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
Description
Claims (3)
- 発光素子と、
所定の延出方向に延出し、前記発光素子からの光を後面から入射し、上面および下面の少なくとも一方で全反射して、前面から出射する導光体と、を備える車両用灯具であって、
前記導光体の延出方向は、前記発光素子の発光面の法線に対して傾斜しており、
前記導光体の前記後面における、前記後面と前記発光面の法線の交わる位置よりも前記発光面の法線と前記延出方向のなす角が鋭角側の一部に、複数の全反射プリズムステップが形成され、
前記導光体の前記後面における、前記後面と前記発光面の法線の交わる位置の近傍に、複数のフレネルステップが形成され、
前記導光体において、前記フレネルステップが設けられている部分の前後方向の厚みは、前記全反射プリズムステップが設けられている部分の前後方向の厚みよりも厚いことを特徴とする車両用灯具。 - 前記導光体の前記後面における、前記後面と前記発光面の法線の交わる位置の近傍に、入射光を前記前面に向けて屈折させる第1入射面が形成されており、
前記導光体の前記後面における、前記第1入射面よりも前記発光面の法線と前記延出方向のなす角が鈍角側に、入射光を側方に屈折させる第2入射面と、前記第2入射面から入射した光を前記前面に向けて全反射する反射面とが形成さ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。 - 前記全反射プリズムステップから入射した光の一部は、前記導光体の前記上面および前記下面の少なくとも一方で全反射して、前記導光体の前記前面から出射することを特徴とする請求項1または2に記載の車両用灯具。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015092165A JP6517078B2 (ja) | 2015-04-28 | 2015-04-28 | 車両用灯具 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015092165A JP6517078B2 (ja) | 2015-04-28 | 2015-04-28 | 車両用灯具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016212949A JP2016212949A (ja) | 2016-12-15 |
JP6517078B2 true JP6517078B2 (ja) | 2019-05-22 |
Family
ID=57551493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015092165A Active JP6517078B2 (ja) | 2015-04-28 | 2015-04-28 | 車両用灯具 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6517078B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN209371131U (zh) * | 2018-11-08 | 2019-09-10 | 芜湖法雷奥汽车照明系统有限公司 | 准直器,照明结构,车灯及相应的车辆 |
CN110107858B (zh) * | 2019-05-13 | 2024-03-22 | 华域视觉科技(上海)有限公司 | 车灯用聚光器设计方法和结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5755002A (en) * | 1980-09-18 | 1982-04-01 | Ichikoh Industries Ltd | Lens for lamp |
JPS598201A (ja) * | 1982-07-05 | 1984-01-17 | 株式会社小糸製作所 | 車輌用灯具 |
JP2573833Y2 (ja) * | 1992-09-29 | 1998-06-04 | 株式会社小糸製作所 | 車輌用灯具 |
US8061880B2 (en) * | 2008-08-22 | 2011-11-22 | Magna International Inc. | High efficiency light pipe—H.E.L.P. |
JP6203519B2 (ja) * | 2012-09-13 | 2017-09-27 | 株式会社小糸製作所 | 車両用灯具 |
-
2015
- 2015-04-28 JP JP2015092165A patent/JP6517078B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2016212949A (ja) | 2016-12-15 |
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