PROBLEM TO BE SOLVED: To provide an illumination device capable of suppressing decrease in a light emission volume even when a voltage is reduced, and a vehicular lighting fixture.SOLUTION: An illumination device according to an embodiment comprises: a substrate; a light emitter provided on the substrate; and a resistor connected to the light emitter in series. A voltage ratio of the resistor when a half of a first voltage is applied to a first circuit where the light emitter and the resistor are connected to each other in series is equal to 25% or less than a voltage ratio of the resistor when the first voltage is applied to the first circuit. A voltage ratio of the resistor of a second circuit, where the light emitter and the resistor are connected to each other in series, when the half of the first voltage is applied to the second circuit is higher than the voltage ratio of the resistor of the first circuit when the half of the first voltage is applied to the first circuit.SELECTED DRAWING: Figure 4

    【課題】電圧の低下が生じても発光量の減少を抑制することができる照明装置、および車両用灯具を提供することである。【解決手段】実施形態に係る照明装置は、基板と;前記基板の上に設けられた発光素子と;前記基板の上に設けられ、前記発光素子と直列接続された抵抗体と;を具備している。 そして、前記発光素子と前記抵抗体とが直列接続された第1の回路に第1の電圧の半減値を印加した際の前記抵抗体の電圧比率は、前記第1の回路に前記第1の電圧を印加した際の前記抵抗体の電圧比率の25%以下であり、前記発光素子と前記抵抗体とが直列接続された第2の回路に前記第1の電圧の半減値を印加した際の前記第2の回路の抵抗体の電圧比率は、前記第1の回路に前記第1の電圧の半減値を印加した際の前記第1の回路の抵抗体の電圧比率よりも高い。【選択図】図4


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    Titel :

    ILLUMINATION DEVICE AND VEHICULAR LIGHTING FIXTURE


    Weitere Titelangaben:

    照明装置、および車両用灯具


    Beteiligte:
    HINO KIYOKAZU (Autor:in)

    Erscheinungsdatum :

    28.07.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    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 / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen




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