To achieve visibility improvement and reduction of sense of incongruity in a vehicular lamp using LEDs. A lighting control device for controlling the on/off of a light source having a first and a second lamp unit each with LEDs including: a control part that generates a control signal for controlling the emitted lights of the lamp units; and a light source drive part for driving the lamp units based on the control signal; where the light emitted from the two lamp units driven by the light source driving part is such that each luminous intensity decreases from a first value to a second value which is smaller than the first value within a common period, and each luminous intensity decreases to the second value during the common period maintaining the relationship that the luminous intensity of the first lamp unit is lower than that of the second lamp unit.


    Access

    Download


    Export, share and cite



    Title :

    Lighting control device for vehicular lamp, vehicular lamp system


    Contributors:

    Publication date :

    2022-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / H05B ELECTRIC HEATING , Elektrische Heizung



    LIGHTING CONTROL DEVICE FOR VEHICULAR LAMP, VEHICULAR LAMP SYSTEM

    OKADA HIDETAKA / OKUNO TOSHIYUKI | European Patent Office | 2020

    Free access

    LIGHTING CONTROL APPARATUS FOR VEHICULAR LAMP, VEHICULAR LAMP SYSTEM

    SHIKATA SATOSHI / YOSHIDA ATSUSHI | European Patent Office | 2019

    Free access

    Lighting control apparatus for vehicular lamp, vehicular lamp system

    SHIKATA SATOSHI / YOSHIDA ATSUSHI | European Patent Office | 2020

    Free access

    VEHICULAR LAMP DRIVING DEVICE AND VEHICULAR LAMP LIGHTING SYSTEM

    SAITO KOTARO / SUZUKI TAKU / WATANABE HITOSHI et al. | European Patent Office | 2017

    Free access

    LIGHTING CONTROL DEVICE AND LIGHTING CONTROL METHOD FOR VEHICULAR LAMP, AND VEHICULAR LAMP SYSTEM

    NAKASHIMA WATARU / KITA YASUSHI / KIMURA TAKAKO et al. | European Patent Office | 2021

    Free access