The scanning-type light source (200A) includes a semiconductor light source (212), and scans an instantaneous irradiation point (SPT) based on light emitted from the semiconductor light source (212) in the horizontal direction of light distribution. The lighting circuit (300J) is capable of dimming the amount of light of the semiconductor light source (212) at each scanning position at multiple gradation levels in synchronization with scanning of the scanning-type light source (200A). The lighting circuit (300J) is capable of switching between a first mode in which the semiconductor light source (212) is lit by pulse width modulation in a load cycle corresponding to the light reduction rate, and a second mode in which the semiconductor light source (212) is extinguished within a cycle number corresponding to the light reduction rate.

    扫描型光源(200A)包含半导体光源(212),在配光的水平方向上扫描基于半导体光源(212)的出射光的瞬时照射点(SPT)。点亮电路(300J)能够与扫描型光源(200A)的扫描同步地以多灰阶对各扫描位置处的半导体光源(212)的光量进行调光。点亮电路(300J)能够切换第1模式和第2模式,该第1模式以与减光率相应的负载循环通过脉冲宽度调制使半导体光源(212)点亮,该第2模式在与减光率相应的循环数内使半导体光源(212)熄灭。


    Access

    Download


    Export, share and cite



    Title :

    VEHICLE LAMP AND ILLUMINATION METHOD


    Additional title:

    车辆用灯具及照明方法


    Contributors:

    Publication date :

    2023-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



    Vehicle lamp illumination method, vehicle lamp illumination system and computer storage medium

    XIAO JIANCHANG / YANG HAILIN | European Patent Office | 2023

    Free access


    VEHICLE LAMP AND ILLUMINATION METHOD

    KAMIYA MISAKO / OYAMA SANAE | European Patent Office | 2024

    Free access

    VEHICLE LAMP AND ILLUMINATION METHOD

    KAMIYA MISAKO / OYAMA SANAE | European Patent Office | 2022

    Free access

    VEHICLE LAMP AND ILLUMINATION METHOD

    KAMIYA MISAKO / OYAMA SANAE | European Patent Office | 2023

    Free access