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    • 1. 发明专利
    • 走査光学系、光走査装置、及び距離測定装置
    • 扫描光学系统,光学扫描装置和测距装置
    • JP2015014757A
    • 2015-01-22
    • JP2013142719
    • 2013-07-08
    • 株式会社豊田中央研究所Toyota Central R&D Labs Inc株式会社デンソーDenso Corp株式会社デンソーウェーブDenso Wave Inc
    • MATSUBARA HIROYUKIKITAKADO YOSHIMIITO KUNIHIKO
    • G02B26/10G01S7/481
    • 【課題】光を2軸方向に広角走査する走査光学系、光走査装置、及び距離測定装置において、広角走査と小型化とを両立する。【解決手段】第1反射面を備え、第1反射面を第1回転軸の周りに回転させて、光源から第1反射面に入射された光を反射走査する第1走査部と、回転楕円面又は球面の一部から回転中心軸の延びる方向に予め定めた幅で切り出され、回転中心軸と交差する方向に湾曲した帯状の反射面を有し、帯状の反射面が第1走査部の光走査方向に延びるように配置されて、第1走査部から入射された光を反射する反射鏡と、第2反射面を備え、第2反射面を第2回転軸の周りに回転させて、反射鏡からの光を前記第1走査部の光走査方向と交差する方向に反射走査する第2走査部と、を備えた走査光学系において、第1走査部から入射され反射鏡で反射された光が第2走査部に入射されるように、第1走査部及び第2走査部の各々を反射鏡の回転中心軸上に離間して配置する。【選択図】図3
    • 要解决的问题:提供广角双向光学扫描用扫描光学系统,提供广角扫描和紧凑度的光学扫描装置和测距装置。解决方案:扫描光学系统包括:第一扫描单元 其具有第一反射表面并且通过围绕第一旋转轴线旋转所述第一反射表面来反射和扫描从光源进入第一反射表面的光; 具有带状反射面的反射镜,其从旋转中心轴的延伸方向从球状体或球面的一部分切割成规定的宽度,并且在与旋转中心轴交叉的方向上弯曲 并且被定位成使得带状反射表面在第一扫描单元的光扫描方向上延伸; 以及第二扫描单元,其具有第二反射表面,并且通过围绕第二旋转轴线旋转第二反射表面,沿与第一扫描单元的光扫描方向交叉的方向来反射和扫描来自反射镜的光。 第一扫描单元和第二扫描单元在反射镜的旋转中心轴线之间具有间隔,使得从第一扫描单元入射的光被反射镜反射并进入第二扫描单元。
    • 3. 发明专利
    • Cylindrical inner surface detection optical system and cylindrical inner surface detector
    • 圆柱内表面检测光学系统和圆柱内表面检测器
    • JP2013142596A
    • 2013-07-22
    • JP2012002565
    • 2012-01-10
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所Denso Corp株式会社デンソー
    • TOYODA CHIETSUKADA TOSHIHIKOKATO SATORUMATSUBARA HIROYUKISASAKI HIROAKIYOKOYAMA YOSHIO
    • G01N21/954G01N21/84G02B23/24G02B23/26
    • PROBLEM TO BE SOLVED: To perform imaging all across a cylindrical inner surface robustly with respect to displacement of positioning of an optical system in the cylinder of a detector.SOLUTION: A cylindrical inner surface detection optical system includes: a light source 16; a beam splitter 20 for reflecting illumination light from the light source 16 in the cylinder so that it becomes coaxial light of the cylinder; a diaphragm part 26 for restricting aperture of the illumination light reflected by the beam splitter 20; a convex lens part 28A for collecting the illumination light restricted by the diaphragm part 26; a reflection mirror 28B with a convex surface for reflecting the illumination light collected by the convex lens part 28A across the cylindrical inner surface and reflecting the reflection light from the inner surface on an imaging device 24 for imaging the inside the cylinder; and an objective convex lens part 28C which is provided opposite to the inner surface and illuminates the illumination light reflected by the reflection mirror 28B on the inner surface, and collecting and receiving the reflection light from the inner surface.
    • 要解决的问题:相对于检测器的圆筒中的光学系统的定位的位移,圆柱形内表面可以全面地进行成像。解决方案:圆柱形内表面检测光学系统包括:光源16; 用于将来自光源16的照明光反射到气缸中以使其成为气缸的同轴光的分束器20; 用于限制由分束器20反射的照明光的孔的光阑部26; 用于收集由隔膜部26限制的照明光的凸透镜部28A; 反射镜28B,其具有凸面,用于将由凸透镜部28A收集的照明光反射穿过圆筒形内表面,并将来自内表面的反射光反射到成像装置24上,用于对气缸内部成像; 以及与内表面相对设置并且照射由内表面上的反射镜28B反射的照明光并且从内表面收集和接收反射光的物镜凸透镜部28C。
    • 6. 发明专利
    • Light irradiation device
    • 光照射装置
    • JP2009205900A
    • 2009-09-10
    • JP2008046084
    • 2008-02-27
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • MATSUBARA HIROYUKIHASEGAWA KAZUO
    • F21S2/00F21V7/00F21Y101/00
    • PROBLEM TO BE SOLVED: To use much light out of light emitted from a lamp light source, and also to enhance brightness of an irradiated light without attenuating the light quantity thereof.
      SOLUTION: Half of the light emitted from a light emitting point of a lamp light source 12, which is emitted toward the back side of the light emitting point, is returned to the light emitting point of the lamp light source 12 after being reflected at a reflection surface of a spherical mirror 14. The light which is returned to the light emitting point of the lamp light source 12 and half of the light emitted from the light emitting point of the lamp light source 12, which is emitted toward the front side of the light emitting point, are overlapped and are reflected at a reflection surface of a parabolic mirror 16 to be emitted forward as a parallel luminous flux.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:从灯光源发出的光中使用多个光,并且还可以增强照射光的亮度,而不会使其光量减弱。

      解决方案:从发光的发光点的朝向发光点的背面侧的灯光源12的发光点射出的一半的光在被照射到灯光源12的发光点之后 在球面镜14的反射面反射。返回到灯光源12的发光点的光和从灯光源12的发光点发射的光的一半朝向 发光点的前侧被重叠并在抛物面反射镜16的反射面反射,作为平行光束向前发射。 版权所有(C)2009,JPO&INPIT

    • 7. 发明专利
    • Optical fiber for optical amplifier
    • 光学放大器用光纤
    • JP2008177217A
    • 2008-07-31
    • JP2007006951
    • 2007-01-16
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • MATSUBARA HIROYUKIHASEGAWA KAZUOMAEDA MITSUTOSHI
    • H01S3/06
    • PROBLEM TO BE SOLVED: To provide an optical fiber for an optical amplifier, capable of allowing an optical amplifier section to efficiently absorb a light even if the fiber has a comparatively short length. SOLUTION: The optical fiber 10 for the optical amplifier has an optical amplifier section 12, and an excited light waveguide section 14 to be coated with the optical amplifier section 12 centered. In this optical fiber 10, the excited light waveguide section 14 has a structure having a refractive index distribution in which a refractive index is lower than the refractive index of the optical amplifier section 12 and the refractive index of the center is higher than the refractive index of the vicinity. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种用于光放大器的光纤,即使光纤具有较短的长度,也能够使光放大器部分有效地吸收光。 解决方案:用于光放大器的光纤10具有光放大器部分12,并且被涂覆有光放大器部分12的激发光波导部分14居中。 在这种光纤10中,激发光波导部分14具有折射率分布的结构,其折射率低于光放大部12的折射率,中心的折射率高于折射率 的附近。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Distance measuring device
    • 距离测量装置
    • JP2012202857A
    • 2012-10-22
    • JP2011068365
    • 2011-03-25
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • INOUE DAISUKEMATSUBARA HIROYUKI
    • G01S17/10G01C3/06G01S7/48
    • PROBLEM TO BE SOLVED: To provide a distance measuring device that is capable of measuring a distance to an object to be measured accurately irrespective of the distance to the object to be measured within a dynamic range of a photodetector.SOLUTION: A distance measuring device comprises: a light projection section for projecting measurement light onto an object to be measured; a movable mirror that moves rotationally at a constant speed and reflects light reflected by the object in a plurality of directions; a light-converging element for converging the light reflected by the movable mirror; a photo-detecting section that has a light-receiving region, the area of which is predetermined, which is located in a focal plane of the light-converging element, and detects light received by the light-receiving region; a drive control section for moving the movable mirror to a position at which coupling efficiency to the light-receiving region is maximized when light reflected from the object within an upper-limit distance of a measurement range is received and moving the movable mirror to a position at which the coupling efficiency to the light-receiving region is reduced when light reflected from the object within a lower-limit distance of the measurement range is received; and a calculation section for calculating a distance to the object to be measured on the basis of measurement time.
    • 要解决的问题:提供一种距离测量装置,其能够在光电检测器的动态范围内与待测量物体的距离无关地精确地测量到被测量物体的距离。 解决方案:测距装置包括:用于将测量光投射到被测量物体上的光投射部分; 可移动的反射镜,其以恒定的速度旋转移动并反射由所述物体反射的光在多个方向上; 用于会聚由可动镜反射的光的聚光元件; 光检测部,其具有位于聚光元件的焦平面中的预定区域的光接收区域,并且检测由受光区域接收的光; 驱动控制部分,用于当接收到在测量范围的上限距离内从物体反射的光时,将可移动反射镜移动到光接收区域的耦合效率最大化的位置,并将可移动反射镜移动到位置 当接收到在测量范围的下限距离内从物体反射的光时,光接收区域的耦合效率降低; 以及计算部,其基于测量时间计算到被测量物体的距离。 版权所有(C)2013,JPO&INPIT
    • 10. 发明专利
    • Light irradiation device
    • 光照射装置
    • JP2009184450A
    • 2009-08-20
    • JP2008024808
    • 2008-02-05
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • MATSUBARA HIROYUKINAITO TAKASHIHIGUCHI KAZUNORITAKAHASHI ARATA
    • B60Q1/24B60Q1/00B60Q1/076B60R21/00
    • PROBLEM TO BE SOLVED: To provide a light irradiation device for irradiating light an object to be noticed under a state where the object to be noticed can take a notice in an easy manner against a presence of a driver's own-vehicle without being dependent on any positional relation between the own-vehicle and the object to be noticed. SOLUTION: An irradiation device 10 irradiates light toward an object to be noticed when the object is present in front of the own-vehicle 100. The irradiation device 10 includes: output means 12, 14 and 24 for outputting position of the object to be noticed so as to specify and output the position of the object when the object is present in front of the own-vehicle 100; and an irradiation means 20 for irradiating light toward the positions output by the output means 12, 14 and 24 for outputting position of the object while its optical characteristic is being changed in relation to time. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种光照射装置,用于在待注意对象可以以容易的方式对驾驶员本人的存在进行注意的状态下照射要注意的物体的光,而不是 取决于本车和要注意的物体之间的任何位置关系。 解决方案:照射装置10当物体存在于本车辆100的前方时朝向要注意的物体照射光。照射装置10包括:输出装置12,14和24,用于输出物体的位置 要注意的是当物体存在于本车辆100的前面时指定并输出物体的位置; 以及照射装置20,用于向输出装置12,14和24输出的位置照射光,以在其光学特性相对于时间改变时输出物体的位置。 版权所有(C)2009,JPO&INPIT