PROBLEM TO BE SOLVED: To provide an illumination device for a vehicle cabin which can reduce the cost and be inexpensively provided by giving versatility to reduce the number of components to be managed.SOLUTION: A light guiding body 23 that is formed in a rod-like body having a square cross-section comprises: a light incident surface 25a which is formed in one end face facing a luminous source 22; light emission surfaces 25b-25d which are sequentially arranged at specific intervals in a circumferential direction, and respectively form side faces along a light guiding direction 24; concavities 26 in which a plurality of concavities are arranged at specific intervals in each of the light emission surfaces 25b-25d and are lined up along the light guiding direction 24, respective positions thereof in each of the light emission surfaces 25b-25d are sequentially shifted in the light guiding direction 24, and total reflection cut surfaces 26a are formed in each inner surface of the light emission surfaces. The light guiding body is arranged corresponding to an illumination window of an interior material body 13.SELECTED DRAWING: Figure 6

    【課題】汎用性を持たせて管理する部品点数を減らし、コスト低減を図って安価に提供することができる車両室内用照明装置を提供する。【解決手段】断面が角形をした棒状に形成され、光源22と対向する一端面に形成した光入射面25aと、周方向に所定の間隔で順に設けられ、各々が導光方向24に沿う側面を形成してなる複数の光出射面25b〜25dと、光出射面25b〜25d毎に所定の間隔をおいて複数個、導光方向24に列をなして形成されているとともに、光出射面25b〜25d毎の各位置が導光方向24に順にずらされ、かつ、各々の内面に全反射カット面26aを形成してなる凹部26とを設けて、内装材本体13の照明用窓に対応して配設された導光体23を有してなる、構成とした。【選択図】図6


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    Titel :

    ILLUMINATION DEVICE FOR VEHICLE CABIN


    Weitere Titelangaben:

    車両室内用照明装置


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

    Erscheinungsdatum :

    2016-04-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / F21W Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend den Gebrauch oder Einsatz von Leuchten oder Beleuchtungssystem , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K,  F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



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