公开(公告)号：EP2762914A1

公开(公告)日：2014-08-06

申请号：EP14151325.9

申请日：2014-01-15

Applicant: Ricoh Company Ltd.

Inventor： Nakamura, Tadashi ,  Imai, Shigeaki

IPC: G01S7/481

CPC classification number: G01J1/0407 ,  G01J1/42 ,  G01S7/481 ,  G01S7/4815 ,  G01S17/936

Abstract: An object detector includes a light source; an optical system that converts a light beam emitted from the light source into a predetermined state; a deflector that deflects and scans the light beam passing through the optical system, and that irradiates the light beam onto an object; and a photo detector that detects reflected light or scattered light. A first size of a light emitting region of the light source is different from a second size of the light emitting region, wherein the first size is a first width of the light emitting region in a first direction, and the second size is a second width of the light emitting region in a second direction. One of the first direction and the second direction corresponding to a smaller one of the first size and the second size coincides with a direction in which angular resolution is higher.

Abstract translation: 物体检测器包括光源; 将从光源发射的光束转换成预定状态的光学系统; 偏转器，其偏转和扫描通过光学系统的光束，并将光束照射到物体上; 以及检测反射光或散射光的光检测器。 光源的发光区域的第一尺寸与发光区域的第二尺寸不同，其中第一尺寸是第一方向上的发光区域的第一宽度，第二尺寸是第二宽度 的发光区域。 与第一尺寸和第二尺寸中的较小尺寸相对应的第一方向和第二方向之一与角度分辨率较高的方向一致。

公开(公告)号：EP2808708A1

公开(公告)日：2014-12-03

申请号：EP14170143.3

申请日：2014-05-28

Applicant: Ricoh Company, Ltd.

Inventor： Nakamura, Tadashi

IPC: G02B3/06 ,  G02B5/00 ,  G02B27/09

CPC classification number: G02B3/06 ,  G02B5/001 ,  G02B19/0014 ,  G02B19/0052 ,  G02B27/0927 ,  G02B27/0966 ,  G02B27/0972

Abstract: Provided is an optical element (L11, L21) including an incidence plane (S11, S21), and an exit plane (S12, S22) including a plurality of planes that are jointed together. The incidence plane (S11, S21) has a shape based on an angle of divergence of light beam incident upon the incidence plane (S11, S21) and irradiation coverage of light beam exiting from the exit plane (S12, S22).

Abstract translation: 本发明提供一种包括入射面（S11，S21）的光学元件（L11，L21）以及包含多个被连接在一起的平面的出射平面（S12，S22）。 入射面（S11，S21）具有基于入射面入射的光束的发散角（S11，S21）和从出射面出射的光束的照射覆盖的形状（S12，S22）。

公开(公告)号：EP2682781A2

公开(公告)日：2014-01-08

申请号：EP13173839.5

申请日：2013-06-26

Applicant: Ricoh Company, Ltd.

Inventor： Suzuki, Shuichi ,  Nakajima, Mitsuru ,  Kenikenichi, Yoshimura ,  Nakamura, Tadashi ,  Funato, Hiroyoshi ,  Imai, Shigeaki

IPC: G01S7/481

CPC classification number: G01S17/02 ,  G01S7/4817

Abstract: Disclosed is a laser radar device including a modulated light beam generator that emits light beams to a target, a photodetector that receives reflected light; a reflected light condenser that condenses the reflected light; a rotator that rotates around a rotation axis; and mirrors included in the rotator that scan the light beams, and guide the reflected light to the reflected light condenser, wherein an angular detection range in a vertical direction is divided into a plurality of layers, wherein mirror surfaces of the mirrors are tilted by corresponding tilt angles relative to the rotation axis, the tilt angles being different from each other, wherein the modulated light beam generator emits the light beams in the vertical direction, the light beams having different emission angles, and wherein a difference between the emission angles corresponds to the angular detection range of one layer in the vertical direction.

Abstract translation: 公开了一种激光雷达装置，其包括向目标发射光束的调制光束发生器，接收反射光的光电检测器; 聚光反射光的反射光聚光器; 围绕旋转轴旋转的旋转体; 以及包括在扫描光束的旋转体中的反射镜，并将反射光引导到反射光聚光器，其中垂直方向上的角度检测范围被分成多个层，其中反射镜的镜面被相应的 倾斜角度相对于旋转轴线倾斜角度彼此不同，其中调制光束发生器沿垂直方向发射光束，光束具有不同的发射角度，并且其中发射角度之间的差异对应于 垂直方向上一层的角度检测范围。

公开(公告)号：EP2682781B1

公开(公告)日：2019-04-10

申请号：EP13173839.5

申请日：2013-06-26

Applicant: Ricoh Company, Ltd.

Inventor： Suzuki, Shuichi ,  Nakajima, Mitsuru ,  Kenikenichi, Yoshimura ,  Nakamura, Tadashi ,  Funato, Hiroyoshi ,  Imai, Shigeaki

IPC: G01S7/481 ,  G01S17/02

公开(公告)号：EP2921877A3

公开(公告)日：2015-10-07

申请号：EP15158844.9

申请日：2015-03-12

Applicant: Ricoh Company, Ltd.

Inventor： Nakamura, Tadashi

IPC: G01S17/42 ,  G01S17/93 ,  G01S7/481

CPC classification number: G01S7/4811 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/023 ,  G01S17/08 ,  G01S17/42 ,  G01S17/936 ,  G02B26/123 ,  G02B26/125

Abstract: An object detection device (20) includes a light source unit (201) that emits light toward an object positioned in a detection area, an optical deflector (204) including a reflection surface to reflect light, which is emitted from the light source unit (201) and reflected from the object, incident on the reflection surface, an optical system (28) arranged on an optical path of the light reflected from the reflection surface, and a light-receiving unit (29) configured to receive the light passed through the optical system (28). The optical system (28) vignettes a part of one, which is incident on the reflection surface at a smaller incident angle than the other, of light reflected from the object in a first end portion of the detection area and light reflected from the object in a second end portion that is on the side opposite from the first end portion of the detection area.

公开(公告)号：EP2682781A3

公开(公告)日：2015-03-18

申请号：EP13173839.5

申请日：2013-06-26

Applicant: Ricoh Company, Ltd.

Inventor： Suzuki, Shuichi ,  Nakajima, Mitsuru ,  Kenikenichi, Yoshimura ,  Nakamura, Tadashi ,  Funato, Hiroyoshi ,  Imai, Shigeaki

IPC: G01S7/481 ,  G01S17/02

CPC classification number: G01S17/02 ,  G01S7/4817

Abstract: Disclosed is a laser radar device including a modulated light beam generator that emits light beams to a target, a photodetector that receives reflected light; a reflected light condenser that condenses the reflected light; a rotator that rotates around a rotation axis; and mirrors included in the rotator that scan the light beams, and guide the reflected light to the reflected light condenser, wherein an angular detection range in a vertical direction is divided into a plurality of layers, wherein mirror surfaces of the mirrors are tilted by corresponding tilt angles relative to the rotation axis, the tilt angles being different from each other, wherein the modulated light beam generator emits the light beams in the vertical direction, the light beams having different emission angles, and wherein a difference between the emission angles corresponds to the angular detection range of one layer in the vertical direction.

公开(公告)号：EP2696166A3

公开(公告)日：2014-12-31

申请号：EP13178647.7

申请日：2013-07-31

Applicant: Ricoh Company, Ltd.

Inventor： Nakamura, Tadashi ,  Imai, Shigeaki

IPC: G01S7/481 ,  G01S17/42 ,  G02B26/10 ,  G01S17/93 ,  G01C3/08

CPC classification number: G01J1/0422 ,  G01C3/08 ,  G01S7/4811 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/42 ,  G01S17/936

Abstract: Disclosed is an optical measurement device including a first light source, an optical element that condenses a light beam emitted from the first light source, a light irradiator that irradiates the light beam onto an object; and a photo detector that detects reflected light or scattered light of the light beam from the object through an imaging system, the light beam being irradiated onto the object, wherein a first optical path length from the first light source to a first conjugate image of the first light source by the optical element is different from a second optical path length from the photo detector to a second conjugate image of the photo detector by the imaging system at least in a first direction.

公开(公告)号：EP2696166A2

公开(公告)日：2014-02-12

申请号：EP13178647.7

申请日：2013-07-31

Applicant: Ricoh Company, Ltd.

Inventor： Nakamura, Tadashi ,  Imai, Shigeaki

IPC: G01C3/08 ,  G01S17/08

CPC classification number: G01J1/0422 ,  G01C3/08 ,  G01S7/4811 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/42 ,  G01S17/936

Abstract: Disclosed is an optical measurement device including a first light source, an optical element that condenses a light beam emitted from the first light source, a light irradiator that irradiates the light beam onto an object; and a photo detector that detects reflected light or scattered light of the light beam from the object through an imaging system, the light beam being irradiated onto the object, wherein a first optical path length from the first light source to a first conjugate image of the first light source by the optical element is different from a second optical path length from the photo detector to a second conjugate image of the photo detector by the imaging system at least in a first direction.

Abstract translation: 公开了一种光学测量装置，其包括第一光源，将从第一光源发射的光束会聚的光学元件，将光束照射到物体上的光照射器; 以及光检测器，其通过成像系统检测来自所述物体的光束的反射光或散射光，所述光束被照射到所述物体上，其中从所述第一光源到所述第一光源的第一共轭图像的第一光路长度 所述光学元件的第一光源至少在第一方向上不同于所述成像系统从所述光电检测器到所述光电检测器的第二共轭图像的第二光路长度。

公开(公告)号：EP2921877A2

公开(公告)日：2015-09-23

申请号：EP15158844.9

申请日：2015-03-12

Applicant: Ricoh Company, Ltd.

Inventor： Nakamura, Tadashi

IPC: G01S17/42

CPC classification number: G01S7/4811 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/023 ,  G01S17/08 ,  G01S17/42 ,  G01S17/936 ,  G02B26/123 ,  G02B26/125

Abstract: An object detection device (20) includes a light source unit (201) that emits light toward an object positioned in a detection area, an optical deflector (204) including a reflection surface to reflect light, which is emitted from the light source unit (201) and reflected from the object, incident on the reflection surface, an optical system (28) arranged on an optical path of the light reflected from the reflection surface, and a light-receiving unit (29) configured to receive the light passed through the optical system (28). The optical system (28) vignettes a part of one, which is incident on the reflection surface at a smaller incident angle than the other, of light reflected from the object in a first end portion of the detection area and light reflected from the object in a second end portion that is on the side opposite from the first end portion of the detection area.

Abstract translation: 物体检测装置（20）包括：朝向位于检测区域的物体发光的光源单元（201），包含从光源单元发射的反射光的反射面的光偏转器（204） 201），并且从物体反射入射在反射面上，设置在从反射面反射的光的光路上的光学系统（28）和被配置为接收通过的光的光接收单元（29） 光学系统（28）。 光学系统（28）使检测区域的第一端部中的从物体反射的光以比另一个更小的入射角入射在反射面上的一部分的一部分和从物体反射的光 与检测区域的第一端部相反的一侧的第二端部。