PROBLEM TO BE SOLVED: To provide an optical scanner that passes light from a laser light source in order through a light deflector and a phosphor panel before emitting the light, and cause a phosphor to efficiently emit light.SOLUTION: A headlamp unit 1 comprises, in order of travel of light, a laser light emitting device 14, a light deflector 15, a phosphor panel 20, and a projection lens 19. Light from the light deflector 15 excites the phosphor when passing through the phosphor panel 20. An emission light part 45 of the laser light emitting device 14 has a rotational position around the optical axis set so that a minor axis direction of a light spot Sp created on an incident light surface 41 of the phosphor panel 20 becomes a direction along a scanning direction Hc of the light spot Sp on the incident light surface 41.SELECTED DRAWING: Figure 8

    【課題】レーザ光源からの光を光偏向器及び蛍光体パネルを順番に通してから出射する光走査装置において、蛍光体を効率良く発光させる。【解決手段】前照灯ユニット1は、光の進行順に、レーザ光出射装置14、光偏向器15、蛍光体パネル20及び投影レンズ19を備える。光偏向器15からの光は、蛍光体パネル20を通過する際、蛍光体を励起する。レーザ光出射装置14の出射光部45は、蛍光体パネル20の入射光面41に生成される光スポットSpの短径方向が入射光面41における光スポットSpの走査方向Hcに沿う方向となるように、光軸回りの回転位置が設定される。【選択図】図8


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    Title :

    OPTICAL SCANNER


    Additional title:

    光走査装置


    Contributors:

    Publication date :

    2017-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / 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 / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES



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