PROBLEM TO BE SOLVED: To suppress that a laser beam which is deflected to a specified direction is radiated to a front part of a vehicle even if an optical deflector is failed, and the laser beam is deflected to the specified direction by the failed optical deflector, in a lighting appliance for a vehicle which forms a luminance distribution on a screen member by the laser beam which is two-dimensionally scanned by the optical deflector, and forms a prescribed light distribution corresponding to the luminance distribution by projecting the luminance distribution frontward.SOLUTION: A lighting appliance for a vehicle comprises: a projection lens 20 including at least one lens for projecting, to a front part of a vehicle, a luminance distribution which is formed at a screen member 18 by laser beams which are scanned by optical deflectors 201, 201for deflecting the laser beams incident from laser beam sources when the optical deflectors for two-dimensionally scanning the laser beams incident from the laser beam sources 12, 12are failed; and a light shielding part 502 which shields the laser beams which are deflected to specified directions by the failed optical deflectors.SELECTED DRAWING: Figure 46

    【課題】光偏向器によって二次元的に走査されるレーザー光により、スクリーン部材に輝度分布を形成し、この輝度分布を前方に投影することで、輝度分布に対応する所定配光パターンを形成する車両用灯具において、光偏向器が故障し、故障した光偏向器によってレーザー光が特定の方向に偏向されたとしても、その特定の方向に偏向されるレーザー光が車両前方に照射されるのを抑制する。【解決手段】レーザー光源12Mid、12Wideから入射するレーザー光を二次元的に走査する光偏向器が故障した場合、レーザー光源から入射するレーザー光を特定の方向に偏向する光偏向器201Mid、201Wideによって走査されるレーザー光により、スクリーン部材18に形成される輝度分布を車両前方に投影する少なくとも1つのレンズを含む投影レンズ20と、故障した光偏向器によって特定の方向に偏向されるレーザー光を遮光する遮光部502と、を備える。【選択図】図46


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    Title :

    LIGHTING APPLIANCE FOR VEHICLE


    Additional title:

    車両用灯具


    Contributors:

    Publication date :

    2016-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen



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