PROBLEM TO BE SOLVED: To reliably prevent laser light leakage during impact according to the secular change of a connection state between an LD and a wavelength conversion member in a lighting device having a light source with a structure in which the wavelength conversion member is fixed to the LD.SOLUTION: A lighting device comprises: a light source having a light emission unit for emitting laser light and a wavelength conversion member for converting the wavelength of the laser light emitted by the light emission part; a control unit for controlling the drive of the light emission unit; and a sensor which is disposed adjacently to the light source, detects an impact applied to the light source, and outputs a detection signal to the control unit. The control unit receives the detection signal from the sensor and turns off the light source when a signal value is higher than a predetermined threshold value. The control unit also monitors a connection state between the light emission unit and the wavelength conversion member and changes a value of the threshold value in accordance with the connection state.SELECTED DRAWING: Figure 13

    【課題】LDに波長変換部材を固定した構造の光源を有する照明装置において、LDと波長変換部材との接続状態の経年変化などに応じて、確実に衝撃時のレーザー光漏れを防止する。【解決手段】照明装置は、レーザー光を発する発光部および発光部が発したレーザー光を波長変換する波長変換部材を有する光源と、発光部の駆動を制御する制御部と、光源に近接して配置され、光源に加えられた衝撃を検出し、検出信号を制御部に出力するセンサを備え、制御部は、センサからの検出信号を受け取り、信号値が所定の閾値より高いときに光源をオフにする。また制御部は、発光部と波長変換部材との接続状態を監視し、接続状態に応じて、閾値の値を変更する。【選択図】図13


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    Title :

    LIGHTING DEVICE, LIGHTING SYSTEM, AND VEHICLE LIGHTING FIXTURE


    Additional title:

    照明装置、照明システム、及び車両用灯具


    Contributors:
    ADACHI KOJI (author)

    Publication date :

    2017-03-02


    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 / H01S Vorrichtungen, die stimulierte Emission verwenden , DEVICES USING STIMULATED EMISSION



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