To provide a lighting system which can inhibit deterioration of imaging performance caused by fluctuation of a focus of a resin lens and uses the fluctuation of the focus of the resin lens to form an easily viewable light distribution pattern with a simple and inexpensive structure.SOLUTION: In a vehicle lamp fitting allowing light from a light source 12 to penetrate through a resin lens 13, an actuator 14 changes a distance between the light source 12 and the resin lens 13. A temperature sensor 17 detects a temperature of an environment including the light source 12 and the resin lens 13. A control part 18 controls the actuator 14 based on temperature information of the temperature sensor 17 so that a distance between the light source 12 and the resin lens 13 becomes longer as the temperature of the environment becomes higher.SELECTED DRAWING: Figure 1

    【課題】簡単かつ安価な構成で、樹脂レンズの焦点変動に伴う結像性の低下を抑えることができ、樹脂レンズの焦点変動を利用して見やすい配光パターンを形成することもできる照明システムを提供する。【解決手段】光源12からの光を樹脂レンズ13に透過させる車両用灯具において、アクチュエータ14が光源と12樹脂レンズ13との間の距離を変化させる。温度センサ17は、光源12および樹脂レンズ13を含む環境の温度を検知する。制御部18は、温度センサ17からの温度情報に基づき、環境温度が高くなるほど光源12と樹脂レンズ13との間の距離が長くなるようにアクチュエータ14を制御する。【選択図】図1


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    Title :

    LIGHTING SYSTEM USING RESIN LENS


    Additional title:

    樹脂レンズを用いた照明システム


    Contributors:

    Publication date :

    2019-09-19


    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



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