PROBLEM TO BE SOLVED: To provide a light guide body which can increase a light amount to an irradiation face, and can perform balanced irradiation, a lighting device using the light guide body and a vehicle lighting device.SOLUTION: There is used a light guide body 23 which comprises: a light incident face 25a for making light from a light source 22 incident therein; a light emitting face 25b for emitting light toward the outside; a light control face 25c which is arranged while opposing the light emitting face 25b; and a plurality of pieces of grooves 27 which are formed at the light control face 25c at prescribed intervals in a light guide direction 26, formed into bow shapes which are protruded to the light incident face 25a side at their centers, formed so as to be gradually deeper in depths as progressing toward the outside from the centers, and formed into slit shapes having reflection cut faces for reflecting light to the light emitting face 25b side from the light control face 25c side.SELECTED DRAWING: Figure 3

    【課題】照射面への光量を増加させることができるとともに、均斉の取れた照射を行うことができるようにした導光体、及び、その導光体を用いた照明装置並びに車両用照明装置を提供する。【解決手段】光源22からの光を入射するための光入射面25aと、外部に向けて光を出射するための光出射面25bと、光出射面25bと対向して設けられた光制御面25cと、導光方向26に所定の間隔をおいて光制御面25c上に設けられ、中央が光入射面25a側に突出された弓形状をなし、かつ、該中央からそれぞれ外側に向かうに連れて深さが徐々に大きく形成されているとともに、光制御面25c側から光出射面25b側に光を反射させる反射カット面を設けたスリット状をした複数本の溝27と、を備える導光体23を使用する。【選択図】図3


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    Titel :

    LIGHT GUIDE BODY, LIGHTING DEVICE USING THE LIGHT GUIDE BODY AND VEHICLE LIGHTING DEVICE


    Weitere Titelangaben:

    導光体、及び、その導光体を用いた照明装置並びに車両用照明装置


    Beteiligte:
    SEKI TOSHIHIKO (Autor:in) / OSHINA MASATO (Autor:in) / TORIKAI KEISUKE (Autor:in)

    Erscheinungsdatum :

    2016-04-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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



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