JP6847513B2 - 導光体 - Google Patents
導光体 Download PDFInfo
- Publication number
- JP6847513B2 JP6847513B2 JP2016252126A JP2016252126A JP6847513B2 JP 6847513 B2 JP6847513 B2 JP 6847513B2 JP 2016252126 A JP2016252126 A JP 2016252126A JP 2016252126 A JP2016252126 A JP 2016252126A JP 6847513 B2 JP6847513 B2 JP 6847513B2
- Authority
- JP
- Japan
- Prior art keywords
- incident
- light
- sub
- light guide
- guide body
- 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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- 230000003287 optical effect Effects 0.000 claims description 49
- 238000005286 illumination Methods 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
Description
11 端面
11a、13a、14a 第1のサブ端面
11b、13b、14b 第2のサブ端面
12a 右側面
12b 左側面
20 光源
D 暗部
E1 第1の入射光
E2 第2の入射光
L1、L1a、L2a、L1b、L2b 輝度
O 光軸
R1、R2、R3、R4 反射面
Claims (1)
- 少なくとも一端に設けられた入射面から照明光が入射される線状の導光体本体を備え、
前記入射面は、前記照明光の光軸を含む平面で略二分された第1のサブ入射面と第2のサブ入射面とで、前記照明光の入射角及び入射距離の少なくともいずれか一方が、
前記導光体本体内における前記第1のサブ入射面から入射した第1の入射光の反射面及び前記第2のサブ入射面から入射した第2の入射光の反射面が、前記導光体本体の側面に沿った輝度又は照度のばらつきが小さくなる向きに重なりあうように
互いに異なっており、
前記導光体本体には、前記第1のサブ入射面と前記第2のサブ入射面との境界に前記導光体本体の延出方向に沿った面が形成されている、
導光体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016252126A JP6847513B2 (ja) | 2016-12-26 | 2016-12-26 | 導光体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016252126A JP6847513B2 (ja) | 2016-12-26 | 2016-12-26 | 導光体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018106918A JP2018106918A (ja) | 2018-07-05 |
JP6847513B2 true JP6847513B2 (ja) | 2021-03-24 |
Family
ID=62785929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016252126A Active JP6847513B2 (ja) | 2016-12-26 | 2016-12-26 | 導光体 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6847513B2 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012174641A (ja) * | 2011-02-24 | 2012-09-10 | Koito Mfg Co Ltd | 車両用灯具 |
JP5749576B2 (ja) * | 2011-06-07 | 2015-07-15 | 株式会社小糸製作所 | 車両用灯具 |
WO2014199563A1 (ja) * | 2013-06-11 | 2014-12-18 | 株式会社小糸製作所 | 車両用灯具 |
-
2016
- 2016-12-26 JP JP2016252126A patent/JP6847513B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2018106918A (ja) | 2018-07-05 |
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