To prevent light that exited from a light exit part of a light guiding body from entering the light guiding body again with a simple structure.SOLUTION: The present invention relates to the structure of the light exit part of light guiding bodies 13 and 14 including: transparent light guiding bodies 13 and 14 through which light 22 from light sources 15 and 16 pass; and a case member 23 covering the light exit part 21 of the light guiding bodes 13 and 14. In the part of the case member 23 that faces the light exit part 21, a reflection wall part 31 is provided to reflect light 22 from the light exit part 21 into a direction in which the light becomes more distant from the light exit part 21. The reflection wall part 31 may have an inclination surface 42 that reflects the light 22 from the light exit part 21 into a direction 41, which extends from the front surface side of the light guiding bodies 13 and 14 to the back surface side.SELECTED DRAWING: Figure 4
【課題】主に、導光体の出光部から出た光が導光体へ再入光するのを簡単な構成で防止し得るようにする。【解決手段】光源15,16からの光22を内部へ通す透明な導光体13,14と、導光体13,14の、出光部21を覆うケース部材23とを備えた導光体13,14の出光部構造に関する。ケース部材23の出光部21と対向する部分に、出光部21から出た光22を、出光部21から離れる方向へ向けて反射する反射壁部31を設ける。反射壁部31は、出光部21から出た光22を、導光体13,14の表面側から裏面側へ向かう方向41へ向けて反射する傾斜面42を有しても良い。【選択図】図4
STRUCTURE OF LIGHT EXIT PART OF LIGHT GUIDING BODY
導光体の出光部構造
2018-12-06
Patent
Electronic Resource
Japanese
IPC: | G09F DISPLAYING , Anzeigewesen / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS |
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