To suppress image quality of an image obtained by an image sensor.SOLUTION: A light distribution variable lamp 200 includes a plurality of light emission pixels PIX1 to PIXn located in an array. An image sensor 500 photographs in synchronization with light emission of the light distribution variable lamp 200 in a photographing cycle. A PWM controller 300 performs PWM control (pulse width modulation) for a plurality of light emission pixels of the light distribution variable lamp 200 according to light distribution command. The PWM controller 300 shifts a phase of a PWM signal for the plurality of light emission pixels. A light distribution controller 400 performs the following: (i) to generate light distribution LDa for photographing such that a duty cycle of the plurality of light emission pixels according to an irradiation part is 100%; and (ii) to generate normal light distribution LDb on the basis of an output image IMG of the image sensor 500 obtained in the photographing cycle.SELECTED DRAWING: Figure 3

    【課題】イメージセンサにより得られる画像の画質を抑制する。【解決手段】配光可変ランプ200は、アレイ状に配置された複数の発光画素PIX1〜PIXnを含む。イメージセンサ500は、撮影サイクルにおいて配光可変ランプ200の発光と同期して撮影する。PWMコントローラ300は、配光指令に応じて、配光可変ランプ200の複数の発光画素をPWM(パルス幅変調)制御する。PWMコントローラ300は、複数の発光画素に対するPWM信号の位相をシフトさせる。配光コントローラ400は、(i)照射部分に対応する複数の発光画素のデューティサイクルが100%である撮影用配光LDaを生成する。また(ii)撮影サイクルにおいて得られたイメージセンサ500の出力画像IMGにもとづいて、通常配光LDbを生成する。【選択図】図3


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    Title :

    LIGHTING FIXTURE SYSTEM FOR VEHICLE, LIGHT DISTRIBUTION CONTROLLER, LIGHT DISTRIBUTION CONTROL METHOD


    Additional title:

    車両用灯具システム、配光コントローラ、配光制御方法


    Contributors:

    Publication date :

    2021-10-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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