To provide an optical scanner that reduces the effect of irradiation light detected by an optical detection unit.SOLUTION: The present invention comprises a light deflector 13 for scanning irradiation light in a main scan direction and a sub-scan direction, and a synchronization detection system 60A for detecting irradiation light when a detection region is scanned by the optical deflector 13. A light source device 11 is lighted in a first irradiation region 601A that is scanned by the optical deflector 13 from a detection region 60A toward an end in the main scan direction, and the light source device 11 is lighted in a second irradiation region 601B that is scanned by the optical deflector 13 from the end in the main scan direction toward the detection region 60A. Meanwhile, an end of the first irradiation region 601A on the detection region 60A side is moved from a position apart from the detection region 60A so as to approach the detection region 60A, and an end of the second irradiation region 601B on the detection region 60A side is moved from a position apart from the detection region 60A so as to approach the detection region 60A.SELECTED DRAWING: Figure 21
【課題】光検知部により検知される照射光の影響を低減する光走査装置を提供すること。【解決手段】照射光を、主走査方向と、副走査方向とに走査する光偏向装置13と、光偏向装置13が検知領域を走査するときの照射光を検知する同期検知系60Aと、を備え、光偏向装置13が検知領域60Aから主走査方向における端部に向けて走査する第1の照射領域601Aで光源装置11を点灯させ、光偏向装置13が主走査方向における端部から検知領域60Aに向けて走査する第2の照射領域601Bで光源装置11を点灯させるとともに、第1の照射領域601Aにおける検知領域60A側の端部を検知領域60Aから離れた位置から検知領域60Aに近づくように移動させ、第2の照射領域601Bにおける検知領域60A側の端部を検知領域60Aから離れた位置から検知領域60Aに近づくように移動させる。【選択図】図21
OPTICAL SCANNER, DISPLAY SYSTEM, AND MOVING OBJECT
光走査装置、表示システムおよび移動体
2020-09-17
Patent
Electronic Resource
Japanese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION |