A vehicle lighting unit can reduce the load applied to the actuator for driving a reflecting member as well as can improve the durability of the actuator. The vehicle lighting unit can include a light source, a reflecting member configured to reflect light from the light source toward an illumination area, an actuator including inner piezoelectric actuators and outer piezoelectric actuators configured to cause the reflecting member to swing (turn) around X and Y axes simultaneously, to thereby scan the illumination area with the reflected light from the reflecting member horizontally and vertically, and a controller configured to control the inner piezoelectric actuators and the outer piezoelectric actuators such that a scanning frequency in the vertical direction of the reflected light is larger than a scanning frequency in the horizontal direction of the reflected light.


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    Titel :

    Vehicle lighting unit


    Beteiligte:

    Erscheinungsdatum :

    04.10.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    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 / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H05B ELECTRIC HEATING , Elektrische Heizung



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